cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 1 | |
| 2 | /*--------------------------------------------------------------------*/ |
| 3 | /*--- ---*/ |
cerion | 1515db9 | 2005-01-25 17:21:23 +0000 | [diff] [blame] | 4 | /*--- This file (guest-ppc32/toIR.c) is ---*/ |
sewardj | dbcfae7 | 2005-08-02 11:14:04 +0000 | [diff] [blame] | 5 | /*--- Copyright (C) OpenWorks LLP. All rights reserved. ---*/ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6 | /*--- ---*/ |
| 7 | /*--------------------------------------------------------------------*/ |
| 8 | |
| 9 | /* |
| 10 | This file is part of LibVEX, a library for dynamic binary |
| 11 | instrumentation and translation. |
| 12 | |
sewardj | 7bd6ffe | 2005-08-03 16:07:36 +0000 | [diff] [blame] | 13 | Copyright (C) 2004-2005 OpenWorks LLP. All rights reserved. |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 14 | |
sewardj | 7bd6ffe | 2005-08-03 16:07:36 +0000 | [diff] [blame] | 15 | This library is made available under a dual licensing scheme. |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 16 | |
sewardj | 7bd6ffe | 2005-08-03 16:07:36 +0000 | [diff] [blame] | 17 | If you link LibVEX against other code all of which is itself |
| 18 | licensed under the GNU General Public License, version 2 dated June |
| 19 | 1991 ("GPL v2"), then you may use LibVEX under the terms of the GPL |
| 20 | v2, as appearing in the file LICENSE.GPL. If the file LICENSE.GPL |
| 21 | is missing, you can obtain a copy of the GPL v2 from the Free |
| 22 | Software Foundation Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 23 | 02110-1301, USA. |
| 24 | |
| 25 | For any other uses of LibVEX, you must first obtain a commercial |
| 26 | license from OpenWorks LLP. Please contact info@open-works.co.uk |
| 27 | for information about commercial licensing. |
| 28 | |
| 29 | This software is provided by OpenWorks LLP "as is" and any express |
| 30 | or implied warranties, including, but not limited to, the implied |
| 31 | warranties of merchantability and fitness for a particular purpose |
| 32 | are disclaimed. In no event shall OpenWorks LLP be liable for any |
| 33 | direct, indirect, incidental, special, exemplary, or consequential |
| 34 | damages (including, but not limited to, procurement of substitute |
| 35 | goods or services; loss of use, data, or profits; or business |
| 36 | interruption) however caused and on any theory of liability, |
| 37 | whether in contract, strict liability, or tort (including |
| 38 | negligence or otherwise) arising in any way out of the use of this |
| 39 | software, even if advised of the possibility of such damage. |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 40 | |
| 41 | Neither the names of the U.S. Department of Energy nor the |
| 42 | University of California nor the names of its contributors may be |
| 43 | used to endorse or promote products derived from this software |
| 44 | without prior written permission. |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 45 | */ |
| 46 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 47 | /* TODO 2005 07 15: |
| 48 | |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 49 | Spot rlwini cases which are simply left/right shifts and |
| 50 | emit Shl32/Shr32 accordingly. |
| 51 | |
| 52 | Move mtxer/mfxer code into its own function. |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 53 | |
| 54 | LIMITATIONS: |
| 55 | |
| 56 | Various, including: |
| 57 | |
| 58 | - Some invalid forms of lswi and lswx are accepted when they should |
| 59 | not be. |
| 60 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 61 | */ |
| 62 | |
| 63 | |
cerion | 1515db9 | 2005-01-25 17:21:23 +0000 | [diff] [blame] | 64 | /* Translates PPC32 code to IR. */ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 65 | |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 66 | /* References |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 67 | |
| 68 | #define PPC32 |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 69 | "PowerPC Microprocessor Family: |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 70 | The Programming Environments for 32-Bit Microprocessors" |
| 71 | 02/21/2000 |
| 72 | http://www-3.ibm.com/chips/techlib/techlib.nsf/techdocs/852569B20050FF778525699600719DF2 |
| 73 | |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 74 | #define AV |
| 75 | "PowerPC Microprocessor Family: |
| 76 | AltiVec(TM) Technology Programming Environments Manual" |
| 77 | 07/10/2003 |
| 78 | http://www-3.ibm.com/chips/techlib/techlib.nsf/techdocs/FBFA164F824370F987256D6A006F424D |
| 79 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 80 | Other refs: |
| 81 | "PowerPC Microprocessor Family: |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 82 | Programming Environments Manual for 64 and 32-Bit Microprocessors |
| 83 | Version 2.0" |
cerion | 26d07b2 | 2005-02-02 17:13:28 +0000 | [diff] [blame] | 84 | 06/10/2003 |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 85 | http://www-3.ibm.com/chips/techlib/techlib.nsf/techdocs/F6153E213FDD912E87256D49006C6541 |
| 86 | */ |
| 87 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 88 | #include "libvex_basictypes.h" |
| 89 | #include "libvex_ir.h" |
| 90 | #include "libvex.h" |
cerion | 1515db9 | 2005-01-25 17:21:23 +0000 | [diff] [blame] | 91 | #include "libvex_guest_ppc32.h" |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 92 | |
| 93 | #include "main/vex_util.h" |
| 94 | #include "main/vex_globals.h" |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 95 | #include "guest-generic/bb_to_IR.h" |
cerion | 1515db9 | 2005-01-25 17:21:23 +0000 | [diff] [blame] | 96 | #include "guest-ppc32/gdefs.h" |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 97 | |
| 98 | |
| 99 | /*------------------------------------------------------------*/ |
| 100 | /*--- Globals ---*/ |
| 101 | /*------------------------------------------------------------*/ |
| 102 | |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 103 | /* These are set at the start of the translation of an insn, right |
| 104 | down in disInstr_PPC32, so that we don't have to pass them around |
| 105 | endlessly. They are all constant during the translation of any |
| 106 | given insn. */ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 107 | |
cerion | ed623db | 2005-06-20 12:42:04 +0000 | [diff] [blame] | 108 | /* We need to know this to do sub-register accesses correctly. */ |
cerion | ed623db | 2005-06-20 12:42:04 +0000 | [diff] [blame] | 109 | static Bool host_is_bigendian; |
| 110 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 111 | /* Pointer to the guest code area. */ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 112 | static UChar* guest_code; |
| 113 | |
| 114 | /* The guest address corresponding to guest_code[0]. */ |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 115 | static Addr32 guest_CIA_bbstart; |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 116 | |
sewardj | 01a9e80 | 2005-02-01 20:46:00 +0000 | [diff] [blame] | 117 | /* The guest address for the instruction currently being |
| 118 | translated. */ |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 119 | static Addr32 guest_CIA_curr_instr; |
sewardj | 01a9e80 | 2005-02-01 20:46:00 +0000 | [diff] [blame] | 120 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 121 | /* The IRBB* into which we're generating code. */ |
| 122 | static IRBB* irbb; |
| 123 | |
| 124 | |
| 125 | /*------------------------------------------------------------*/ |
| 126 | /*--- Debugging output ---*/ |
| 127 | /*------------------------------------------------------------*/ |
| 128 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 129 | #define PPC32_TOIR_DEBUG 0 |
| 130 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 131 | #define DIP(format, args...) \ |
| 132 | if (vex_traceflags & VEX_TRACE_FE) \ |
| 133 | vex_printf(format, ## args) |
| 134 | |
| 135 | #define DIS(buf, format, args...) \ |
| 136 | if (vex_traceflags & VEX_TRACE_FE) \ |
| 137 | vex_sprintf(buf, format, ## args) |
| 138 | |
| 139 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 140 | /*------------------------------------------------------------*/ |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 141 | /*--- Offsets of various parts of the ppc32 guest state. ---*/ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 142 | /*------------------------------------------------------------*/ |
| 143 | |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 144 | #define OFFB_CIA offsetof(VexGuestPPC32State,guest_CIA) |
| 145 | #define OFFB_LR offsetof(VexGuestPPC32State,guest_LR) |
| 146 | #define OFFB_CTR offsetof(VexGuestPPC32State,guest_CTR) |
| 147 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 148 | #define OFFB_XER_SO offsetof(VexGuestPPC32State,guest_XER_SO) |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 149 | #define OFFB_XER_OV offsetof(VexGuestPPC32State,guest_XER_OV) |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 150 | #define OFFB_XER_CA offsetof(VexGuestPPC32State,guest_XER_CA) |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 151 | #define OFFB_XER_BC offsetof(VexGuestPPC32State,guest_XER_BC) |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 152 | |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 153 | #define OFFB_FPROUND offsetof(VexGuestPPC32State,guest_FPROUND) |
| 154 | |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 155 | #define OFFB_VRSAVE offsetof(VexGuestPPC32State,guest_VRSAVE) |
| 156 | #define OFFB_VSCR offsetof(VexGuestPPC32State,guest_VSCR) |
| 157 | |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 158 | #define OFFB_EMWARN offsetof(VexGuestPPC32State,guest_EMWARN) |
| 159 | |
sewardj | 7ce9d15 | 2005-03-15 16:54:13 +0000 | [diff] [blame] | 160 | #define OFFB_TISTART offsetof(VexGuestPPC32State,guest_TISTART) |
| 161 | #define OFFB_TILEN offsetof(VexGuestPPC32State,guest_TILEN) |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 162 | |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 163 | #define OFFB_RESVN offsetof(VexGuestPPC32State,guest_RESVN) |
| 164 | |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 165 | |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 166 | /*------------------------------------------------------------*/ |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 167 | /*--- Extract instruction fields --- */ |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 168 | /*------------------------------------------------------------*/ |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 169 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 170 | /* Extract primary opcode, instr[31:26] */ |
| 171 | static UInt ifieldOPC ( UInt instr ) { |
| 172 | return (instr >> 26) & 0x3F; |
| 173 | } |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 174 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 175 | /* Extract 10-bit secondary opcode, instr[11:1] */ |
| 176 | static UInt ifieldOPClo10 ( UInt instr) { |
| 177 | return (instr >> 1 ) & 0x3FF; |
| 178 | } |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 179 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 180 | /* Extract RD (destination register) field, instr[25:21] */ |
| 181 | static UInt ifieldRD ( UInt instr ) { |
| 182 | return (instr >> 21) & 0x1F; |
| 183 | } |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 184 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 185 | /* Extract RA (first source register) field, instr[20:16] */ |
| 186 | static UInt ifieldRA ( UInt instr ) { |
| 187 | return (instr >> 16) & 0x1F; |
| 188 | } |
| 189 | |
| 190 | /* Extract RB (first source register) field, instr[15:11] */ |
| 191 | static UInt ifieldRB ( UInt instr ) { |
| 192 | return (instr >> 11) & 0x1F; |
| 193 | } |
| 194 | |
| 195 | /* Extract bottom bit (Rc?) from instr */ |
| 196 | static UInt ifieldBIT0 ( UInt instr ) { |
| 197 | return instr & 1; |
| 198 | } |
| 199 | |
| 200 | /* Extract lower half of instruction and sign extent to 32 bits */ |
| 201 | static Int ifieldSIMM16 ( UInt instr ) { |
| 202 | Int i = instr & 0xFFFF; |
| 203 | return (i << 16) >> 16; |
| 204 | } |
| 205 | |
| 206 | |
| 207 | //zz /*------------------------------------------------------------*/ |
| 208 | //zz /*--- Abstract register interface (non-gpr|fpr) --- */ |
| 209 | //zz /*------------------------------------------------------------*/ |
| 210 | //zz |
| 211 | //zz /* Offsets of bitfields within various ppc32 registers */ |
| 212 | //zz #define SHIFT_XER_SO 31 |
| 213 | //zz #define SHIFT_XER_OV 30 |
| 214 | //zz #define SHIFT_XER_CA 29 |
| 215 | //zz #define SHIFT_XER_BC 0 |
| 216 | //zz |
| 217 | //zz #define SHIFT_CR_LT 8 |
| 218 | //zz #define SHIFT_CR_GT 4 |
| 219 | //zz #define SHIFT_CR_EQ 2 |
| 220 | //zz #define SHIFT_CR_SO 1 |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 221 | |
| 222 | #define SHIFT_FPSCR_RN 0 |
| 223 | #define MASK_FPSCR_RN (3 << SHIFT_FPSCR_RN) |
| 224 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 225 | //zz #define SHIFT_VSCR_NJ 16 |
| 226 | //zz #define SHIFT_VSCR_SAT 0 |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 227 | |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 228 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 229 | // Special purpose (i.e. non-gpr/fpr) registers |
| 230 | typedef enum { |
| 231 | PPC32_SPR_CIA, // Current Instruction Address |
| 232 | PPC32_SPR_LR, // Link Register |
| 233 | PPC32_SPR_CTR, // Count Register |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 234 | //zz PPC32_SPR_XER, // Summary Overflow |
| 235 | //zz PPC32_SPR_CR, // Condition Register |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 236 | PPC32_SPR_FPSCR, // Floating Point Status/Control Register |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 237 | PPC32_SPR_VRSAVE, // Vector Save/Restore Register |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 238 | PPC32_SPR_VSCR, // Vector Status and Control Register |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 239 | PPC32_SPR_MAX |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 240 | } PPC32SPR; |
| 241 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 242 | //zz /* |
| 243 | //zz Note on FPSCR: Floating Point Status and Control Register |
| 244 | //zz |
| 245 | //zz We're only keeping hold of fp rounding-mode bits, via guest_FPROUND |
| 246 | //zz The rest of the FPSCR is set to 0x0, which corresponds to |
| 247 | //zz 'all exceptions masked' |
| 248 | //zz |
| 249 | //zz FPSCR[29:31] => Exception Summaries |
| 250 | //zz FPSCR[17:28] => Exceptions |
| 251 | //zz FPSCR[16] => FPRF::Class Descriptor |
| 252 | //zz FPSCR[12:15] => FPRF::Condition Code |
| 253 | //zz FPSCR[11] => Unused (0) |
| 254 | //zz FPSCR[8:10] => Exceptions |
| 255 | //zz FPSCR[3:7] => Exception Control |
| 256 | //zz FPSCR[2] => Non-IEEE mode |
| 257 | //zz FPSCR[0:1] => Rounding Mode |
| 258 | //zz |
| 259 | //zz CAB: Perhaps necessary to record writes to FPRF ? |
| 260 | //zz Set by dis_fp_cmp() instrs, also some fp arith/round/conv instrs. |
| 261 | //zz Tested using dis_fp_scr(): e.g fpscr->cr, branch conditional... |
| 262 | //zz */ |
| 263 | //zz |
| 264 | //zz |
| 265 | //zz /* Gets from SPR (non-GPR|FPR) registers */ |
| 266 | //zz static IRExpr* getReg_masked ( PPC32SPR reg, UInt mask ); |
| 267 | static IRExpr* getSPR ( PPC32SPR reg ); |
| 268 | //zz static IRExpr* getReg_field ( PPC32SPR reg, UInt field_idx ); |
| 269 | //zz static IRExpr* getReg_bit ( PPC32SPR reg, UInt bit_idx ); |
| 270 | //zz |
| 271 | //zz /* Puts to SPR (non-GPR|FPR) registers */ |
| 272 | //zz static void putReg_masked ( PPC32SPR reg, IRExpr* src, UInt mask ); |
| 273 | static void putSPR ( PPC32SPR reg, IRExpr* src ); |
| 274 | //zz static void putReg_field ( PPC32SPR reg, IRExpr* src, UInt field_idx ); |
| 275 | //zz static void putReg_bit ( PPC32SPR reg, IRExpr* src, UInt bit_idx ); |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 276 | |
| 277 | /* FP Helpers */ |
| 278 | static void put_emwarn ( IRExpr* e /* :: Ity_I32 */ ); |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 279 | |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 280 | |
| 281 | |
| 282 | |
| 283 | /*------------------------------------------------------------*/ |
| 284 | /*--- Misc Helpers ---*/ |
| 285 | /*------------------------------------------------------------*/ |
| 286 | |
| 287 | static UInt MASK( UInt begin, UInt end ) |
| 288 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 289 | UInt m1 = ((UInt)(-1)) << begin; |
| 290 | UInt m2 = ((UInt)(-1)) << (end + 1); |
| 291 | UInt mask = m1 ^ m2; |
| 292 | if (begin > end) mask = ~mask; // wrap mask |
| 293 | return mask; |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 294 | } |
| 295 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 296 | #if PPC32_TOIR_DEBUG |
| 297 | static void vex_printf_binary( UInt x, UInt len, Bool spaces ) |
| 298 | { |
| 299 | UInt i; |
| 300 | vassert(len > 0 && len <= 32); |
| 301 | |
| 302 | for (i=len; i>0; i--) { |
| 303 | vex_printf("%d", ((x & (1<<(len-1))) != 0) ); |
| 304 | x = x << 1; |
| 305 | if (((i-1)%4)==0 && (i > 1) && spaces) { |
| 306 | vex_printf(" "); |
| 307 | } |
| 308 | } |
| 309 | } |
| 310 | #endif |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 311 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 312 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 313 | /*------------------------------------------------------------*/ |
| 314 | /*--- Helper bits and pieces for deconstructing the ---*/ |
sewardj | 684aa95 | 2005-01-30 12:52:14 +0000 | [diff] [blame] | 315 | /*--- ppc32 insn stream. ---*/ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 316 | /*------------------------------------------------------------*/ |
| 317 | |
| 318 | /* Add a statement to the list held by "irbb". */ |
| 319 | static void stmt ( IRStmt* st ) |
| 320 | { |
| 321 | addStmtToIRBB( irbb, st ); |
| 322 | } |
| 323 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 324 | /* Generate a new temporary of the given type. */ |
| 325 | static IRTemp newTemp ( IRType ty ) |
| 326 | { |
sewardj | 496a58d | 2005-03-20 18:44:44 +0000 | [diff] [blame] | 327 | vassert(isPlausibleIRType(ty)); |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 328 | return newIRTemp( irbb->tyenv, ty ); |
| 329 | } |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 330 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 331 | /* Various simple conversions */ |
| 332 | |
| 333 | static UChar extend_s_5to8 ( UChar x ) |
| 334 | { |
| 335 | return toUChar((((Int)x) << 27) >> 27); |
| 336 | } |
| 337 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 338 | //zz #if 0 |
| 339 | //zz static UInt extend_s_8to32( UInt x ) |
| 340 | //zz { |
| 341 | //zz return (UInt)((((Int)x) << 24) >> 24); |
| 342 | //zz } |
| 343 | //zz #endif |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 344 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 345 | static UInt extend_s_16to32 ( UInt x ) |
| 346 | { |
| 347 | return (UInt)((((Int)x) << 16) >> 16); |
| 348 | } |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 349 | |
cerion | 6b30d85 | 2005-06-24 11:25:46 +0000 | [diff] [blame] | 350 | static UInt extend_s_26to32 ( UInt x ) |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 351 | { |
cerion | 6b30d85 | 2005-06-24 11:25:46 +0000 | [diff] [blame] | 352 | return (UInt)((((Int)x) << 6) >> 6); |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 353 | } |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 354 | |
sewardj | 684aa95 | 2005-01-30 12:52:14 +0000 | [diff] [blame] | 355 | /* Do a big-endian load of a 32-bit word, regardless of the endianness |
| 356 | of the underlying host. */ |
cerion | cf00446 | 2005-01-31 15:24:55 +0000 | [diff] [blame] | 357 | static UInt getUIntBigendianly ( UChar* p ) |
sewardj | 684aa95 | 2005-01-30 12:52:14 +0000 | [diff] [blame] | 358 | { |
cerion | cf00446 | 2005-01-31 15:24:55 +0000 | [diff] [blame] | 359 | UInt w = 0; |
sewardj | 684aa95 | 2005-01-30 12:52:14 +0000 | [diff] [blame] | 360 | w = (w << 8) | p[0]; |
| 361 | w = (w << 8) | p[1]; |
| 362 | w = (w << 8) | p[2]; |
| 363 | w = (w << 8) | p[3]; |
| 364 | return w; |
| 365 | } |
| 366 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 367 | |
| 368 | /*------------------------------------------------------------*/ |
| 369 | /*--- Helpers for constructing IR. ---*/ |
| 370 | /*------------------------------------------------------------*/ |
| 371 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 372 | static void assign ( IRTemp dst, IRExpr* e ) |
| 373 | { |
| 374 | stmt( IRStmt_Tmp(dst, e) ); |
| 375 | } |
| 376 | |
cerion | ae69462 | 2005-01-28 17:52:47 +0000 | [diff] [blame] | 377 | static void storeBE ( IRExpr* addr, IRExpr* data ) |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 378 | { |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 379 | vassert(typeOfIRExpr(irbb->tyenv, addr) == Ity_I32); |
sewardj | af1ceca | 2005-06-30 23:31:27 +0000 | [diff] [blame] | 380 | stmt( IRStmt_Store(Iend_BE,addr,data) ); |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 381 | } |
| 382 | |
| 383 | static IRExpr* unop ( IROp op, IRExpr* a ) |
| 384 | { |
| 385 | return IRExpr_Unop(op, a); |
| 386 | } |
| 387 | |
| 388 | static IRExpr* binop ( IROp op, IRExpr* a1, IRExpr* a2 ) |
| 389 | { |
| 390 | return IRExpr_Binop(op, a1, a2); |
| 391 | } |
| 392 | |
| 393 | static IRExpr* mkexpr ( IRTemp tmp ) |
| 394 | { |
| 395 | return IRExpr_Tmp(tmp); |
| 396 | } |
| 397 | |
sewardj | 7f08078 | 2005-07-27 00:22:15 +0000 | [diff] [blame] | 398 | //uu static IRExpr* mkU1 ( UInt i ) |
| 399 | //uu { |
| 400 | //uu vassert(i < 2); |
| 401 | //uu return IRExpr_Const(IRConst_U1( toBool(i) )); |
| 402 | //uu } |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 403 | |
sewardj | 684c037 | 2005-02-07 02:33:58 +0000 | [diff] [blame] | 404 | static IRExpr* mkU8 ( UChar i ) |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 405 | { |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 406 | return IRExpr_Const(IRConst_U8(i)); |
| 407 | } |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 408 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 409 | static IRExpr* mkU32 ( UInt i ) |
| 410 | { |
| 411 | return IRExpr_Const(IRConst_U32(i)); |
| 412 | } |
| 413 | |
cerion | ae69462 | 2005-01-28 17:52:47 +0000 | [diff] [blame] | 414 | static IRExpr* loadBE ( IRType ty, IRExpr* data ) |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 415 | { |
sewardj | af1ceca | 2005-06-30 23:31:27 +0000 | [diff] [blame] | 416 | return IRExpr_Load(Iend_BE,ty,data); |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 417 | } |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 418 | |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 419 | static IRExpr* mkOR1 ( IRExpr* arg1, IRExpr* arg2 ) |
| 420 | { |
| 421 | vassert(typeOfIRExpr(irbb->tyenv, arg1) == Ity_I1); |
| 422 | vassert(typeOfIRExpr(irbb->tyenv, arg2) == Ity_I1); |
| 423 | return |
| 424 | unop(Iop_32to1, binop(Iop_Or32, unop(Iop_1Uto32, arg1), |
| 425 | unop(Iop_1Uto32, arg2))); |
| 426 | } |
| 427 | |
| 428 | static IRExpr* mkAND1 ( IRExpr* arg1, IRExpr* arg2 ) |
| 429 | { |
| 430 | vassert(typeOfIRExpr(irbb->tyenv, arg1) == Ity_I1); |
| 431 | vassert(typeOfIRExpr(irbb->tyenv, arg2) == Ity_I1); |
| 432 | return |
| 433 | unop(Iop_32to1, binop(Iop_And32, unop(Iop_1Uto32, arg1), |
| 434 | unop(Iop_1Uto32, arg2))); |
| 435 | } |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 436 | |
| 437 | static Int integerGuestRegOffset ( UInt archreg ) |
cerion | 45b70ff | 2005-01-31 17:03:25 +0000 | [diff] [blame] | 438 | { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 439 | vassert(archreg < 32); |
| 440 | |
| 441 | // jrs: probably not necessary; only matters if we reference sub-parts |
| 442 | // of the ppc32 registers, but that isn't the case |
| 443 | // later: this might affect Altivec though? |
| 444 | vassert(host_is_bigendian); |
| 445 | |
| 446 | switch (archreg) { |
| 447 | case 0: return offsetof(VexGuestPPC32State, guest_GPR0); |
| 448 | case 1: return offsetof(VexGuestPPC32State, guest_GPR1); |
| 449 | case 2: return offsetof(VexGuestPPC32State, guest_GPR2); |
| 450 | case 3: return offsetof(VexGuestPPC32State, guest_GPR3); |
| 451 | case 4: return offsetof(VexGuestPPC32State, guest_GPR4); |
| 452 | case 5: return offsetof(VexGuestPPC32State, guest_GPR5); |
| 453 | case 6: return offsetof(VexGuestPPC32State, guest_GPR6); |
| 454 | case 7: return offsetof(VexGuestPPC32State, guest_GPR7); |
| 455 | case 8: return offsetof(VexGuestPPC32State, guest_GPR8); |
| 456 | case 9: return offsetof(VexGuestPPC32State, guest_GPR9); |
| 457 | case 10: return offsetof(VexGuestPPC32State, guest_GPR10); |
| 458 | case 11: return offsetof(VexGuestPPC32State, guest_GPR11); |
| 459 | case 12: return offsetof(VexGuestPPC32State, guest_GPR12); |
| 460 | case 13: return offsetof(VexGuestPPC32State, guest_GPR13); |
| 461 | case 14: return offsetof(VexGuestPPC32State, guest_GPR14); |
| 462 | case 15: return offsetof(VexGuestPPC32State, guest_GPR15); |
| 463 | case 16: return offsetof(VexGuestPPC32State, guest_GPR16); |
| 464 | case 17: return offsetof(VexGuestPPC32State, guest_GPR17); |
| 465 | case 18: return offsetof(VexGuestPPC32State, guest_GPR18); |
| 466 | case 19: return offsetof(VexGuestPPC32State, guest_GPR19); |
| 467 | case 20: return offsetof(VexGuestPPC32State, guest_GPR20); |
| 468 | case 21: return offsetof(VexGuestPPC32State, guest_GPR21); |
| 469 | case 22: return offsetof(VexGuestPPC32State, guest_GPR22); |
| 470 | case 23: return offsetof(VexGuestPPC32State, guest_GPR23); |
| 471 | case 24: return offsetof(VexGuestPPC32State, guest_GPR24); |
| 472 | case 25: return offsetof(VexGuestPPC32State, guest_GPR25); |
| 473 | case 26: return offsetof(VexGuestPPC32State, guest_GPR26); |
| 474 | case 27: return offsetof(VexGuestPPC32State, guest_GPR27); |
| 475 | case 28: return offsetof(VexGuestPPC32State, guest_GPR28); |
| 476 | case 29: return offsetof(VexGuestPPC32State, guest_GPR29); |
| 477 | case 30: return offsetof(VexGuestPPC32State, guest_GPR30); |
| 478 | case 31: return offsetof(VexGuestPPC32State, guest_GPR31); |
| 479 | default: break; |
| 480 | } |
| 481 | vpanic("integerGuestRegOffset(ppc32,be)"); /*notreached*/ |
| 482 | } |
| 483 | |
| 484 | static IRExpr* getIReg ( UInt archreg ) |
| 485 | { |
| 486 | vassert(archreg < 32); |
| 487 | return IRExpr_Get( integerGuestRegOffset(archreg), Ity_I32 ); |
| 488 | } |
| 489 | |
| 490 | /* Ditto, but write to a reg instead. */ |
| 491 | static void putIReg ( UInt archreg, IRExpr* e ) |
| 492 | { |
| 493 | vassert(archreg < 32); |
| 494 | vassert(typeOfIRExpr(irbb->tyenv, e) == Ity_I32); |
| 495 | stmt( IRStmt_Put(integerGuestRegOffset(archreg), e) ); |
| 496 | } |
| 497 | |
| 498 | |
| 499 | static Int floatGuestRegOffset ( UInt archreg ) |
| 500 | { |
| 501 | vassert(archreg < 32); |
| 502 | |
| 503 | switch (archreg) { |
| 504 | case 0: return offsetof(VexGuestPPC32State, guest_FPR0); |
| 505 | case 1: return offsetof(VexGuestPPC32State, guest_FPR1); |
| 506 | case 2: return offsetof(VexGuestPPC32State, guest_FPR2); |
| 507 | case 3: return offsetof(VexGuestPPC32State, guest_FPR3); |
| 508 | case 4: return offsetof(VexGuestPPC32State, guest_FPR4); |
| 509 | case 5: return offsetof(VexGuestPPC32State, guest_FPR5); |
| 510 | case 6: return offsetof(VexGuestPPC32State, guest_FPR6); |
| 511 | case 7: return offsetof(VexGuestPPC32State, guest_FPR7); |
| 512 | case 8: return offsetof(VexGuestPPC32State, guest_FPR8); |
| 513 | case 9: return offsetof(VexGuestPPC32State, guest_FPR9); |
| 514 | case 10: return offsetof(VexGuestPPC32State, guest_FPR10); |
| 515 | case 11: return offsetof(VexGuestPPC32State, guest_FPR11); |
| 516 | case 12: return offsetof(VexGuestPPC32State, guest_FPR12); |
| 517 | case 13: return offsetof(VexGuestPPC32State, guest_FPR13); |
| 518 | case 14: return offsetof(VexGuestPPC32State, guest_FPR14); |
| 519 | case 15: return offsetof(VexGuestPPC32State, guest_FPR15); |
| 520 | case 16: return offsetof(VexGuestPPC32State, guest_FPR16); |
| 521 | case 17: return offsetof(VexGuestPPC32State, guest_FPR17); |
| 522 | case 18: return offsetof(VexGuestPPC32State, guest_FPR18); |
| 523 | case 19: return offsetof(VexGuestPPC32State, guest_FPR19); |
| 524 | case 20: return offsetof(VexGuestPPC32State, guest_FPR20); |
| 525 | case 21: return offsetof(VexGuestPPC32State, guest_FPR21); |
| 526 | case 22: return offsetof(VexGuestPPC32State, guest_FPR22); |
| 527 | case 23: return offsetof(VexGuestPPC32State, guest_FPR23); |
| 528 | case 24: return offsetof(VexGuestPPC32State, guest_FPR24); |
| 529 | case 25: return offsetof(VexGuestPPC32State, guest_FPR25); |
| 530 | case 26: return offsetof(VexGuestPPC32State, guest_FPR26); |
| 531 | case 27: return offsetof(VexGuestPPC32State, guest_FPR27); |
| 532 | case 28: return offsetof(VexGuestPPC32State, guest_FPR28); |
| 533 | case 29: return offsetof(VexGuestPPC32State, guest_FPR29); |
| 534 | case 30: return offsetof(VexGuestPPC32State, guest_FPR30); |
| 535 | case 31: return offsetof(VexGuestPPC32State, guest_FPR31); |
| 536 | default: break; |
| 537 | } |
| 538 | vpanic("floatGuestRegOffset(ppc32)"); /*notreached*/ |
| 539 | } |
| 540 | |
| 541 | static IRExpr* getFReg ( UInt archreg ) |
| 542 | { |
| 543 | vassert(archreg < 32); |
| 544 | return IRExpr_Get( floatGuestRegOffset(archreg), Ity_F64 ); |
| 545 | } |
| 546 | |
| 547 | /* Ditto, but write to a reg instead. */ |
| 548 | static void putFReg ( UInt archreg, IRExpr* e ) |
| 549 | { |
| 550 | vassert(archreg < 32); |
| 551 | vassert(typeOfIRExpr(irbb->tyenv, e) == Ity_F64); |
| 552 | stmt( IRStmt_Put(floatGuestRegOffset(archreg), e) ); |
| 553 | } |
| 554 | |
| 555 | |
| 556 | static Int vectorGuestRegOffset ( UInt archreg ) |
| 557 | { |
| 558 | vassert(archreg < 32); |
| 559 | |
| 560 | switch (archreg) { |
| 561 | case 0: return offsetof(VexGuestPPC32State, guest_VR0); |
| 562 | case 1: return offsetof(VexGuestPPC32State, guest_VR1); |
| 563 | case 2: return offsetof(VexGuestPPC32State, guest_VR2); |
| 564 | case 3: return offsetof(VexGuestPPC32State, guest_VR3); |
| 565 | case 4: return offsetof(VexGuestPPC32State, guest_VR4); |
| 566 | case 5: return offsetof(VexGuestPPC32State, guest_VR5); |
| 567 | case 6: return offsetof(VexGuestPPC32State, guest_VR6); |
| 568 | case 7: return offsetof(VexGuestPPC32State, guest_VR7); |
| 569 | case 8: return offsetof(VexGuestPPC32State, guest_VR8); |
| 570 | case 9: return offsetof(VexGuestPPC32State, guest_VR9); |
| 571 | case 10: return offsetof(VexGuestPPC32State, guest_VR10); |
| 572 | case 11: return offsetof(VexGuestPPC32State, guest_VR11); |
| 573 | case 12: return offsetof(VexGuestPPC32State, guest_VR12); |
| 574 | case 13: return offsetof(VexGuestPPC32State, guest_VR13); |
| 575 | case 14: return offsetof(VexGuestPPC32State, guest_VR14); |
| 576 | case 15: return offsetof(VexGuestPPC32State, guest_VR15); |
| 577 | case 16: return offsetof(VexGuestPPC32State, guest_VR16); |
| 578 | case 17: return offsetof(VexGuestPPC32State, guest_VR17); |
| 579 | case 18: return offsetof(VexGuestPPC32State, guest_VR18); |
| 580 | case 19: return offsetof(VexGuestPPC32State, guest_VR19); |
| 581 | case 20: return offsetof(VexGuestPPC32State, guest_VR20); |
| 582 | case 21: return offsetof(VexGuestPPC32State, guest_VR21); |
| 583 | case 22: return offsetof(VexGuestPPC32State, guest_VR22); |
| 584 | case 23: return offsetof(VexGuestPPC32State, guest_VR23); |
| 585 | case 24: return offsetof(VexGuestPPC32State, guest_VR24); |
| 586 | case 25: return offsetof(VexGuestPPC32State, guest_VR25); |
| 587 | case 26: return offsetof(VexGuestPPC32State, guest_VR26); |
| 588 | case 27: return offsetof(VexGuestPPC32State, guest_VR27); |
| 589 | case 28: return offsetof(VexGuestPPC32State, guest_VR28); |
| 590 | case 29: return offsetof(VexGuestPPC32State, guest_VR29); |
| 591 | case 30: return offsetof(VexGuestPPC32State, guest_VR30); |
| 592 | case 31: return offsetof(VexGuestPPC32State, guest_VR31); |
| 593 | default: break; |
| 594 | } |
| 595 | vpanic("vextorGuestRegOffset(ppc32)"); /*notreached*/ |
| 596 | } |
| 597 | |
| 598 | static IRExpr* getVReg ( UInt archreg ) |
| 599 | { |
| 600 | vassert(archreg < 32); |
| 601 | return IRExpr_Get( vectorGuestRegOffset(archreg), Ity_V128 ); |
| 602 | } |
| 603 | |
| 604 | /* Ditto, but write to a reg instead. */ |
| 605 | static void putVReg ( UInt archreg, IRExpr* e ) |
| 606 | { |
| 607 | vassert(archreg < 32); |
| 608 | vassert(typeOfIRExpr(irbb->tyenv, e) == Ity_V128); |
| 609 | stmt( IRStmt_Put(vectorGuestRegOffset(archreg), e) ); |
| 610 | } |
| 611 | |
| 612 | static Int guestCR321offset ( UInt cr ) |
| 613 | { |
| 614 | switch (cr) { |
| 615 | case 0: return offsetof(VexGuestPPC32State, guest_CR0_321 ); |
| 616 | case 1: return offsetof(VexGuestPPC32State, guest_CR1_321 ); |
| 617 | case 2: return offsetof(VexGuestPPC32State, guest_CR2_321 ); |
| 618 | case 3: return offsetof(VexGuestPPC32State, guest_CR3_321 ); |
| 619 | case 4: return offsetof(VexGuestPPC32State, guest_CR4_321 ); |
| 620 | case 5: return offsetof(VexGuestPPC32State, guest_CR5_321 ); |
| 621 | case 6: return offsetof(VexGuestPPC32State, guest_CR6_321 ); |
| 622 | case 7: return offsetof(VexGuestPPC32State, guest_CR7_321 ); |
| 623 | default: vpanic("guestCR321offset(ppc32)"); |
| 624 | } |
| 625 | } |
| 626 | |
| 627 | static Int guestCR0offset ( UInt cr ) |
| 628 | { |
| 629 | switch (cr) { |
| 630 | case 0: return offsetof(VexGuestPPC32State, guest_CR0_0 ); |
| 631 | case 1: return offsetof(VexGuestPPC32State, guest_CR1_0 ); |
| 632 | case 2: return offsetof(VexGuestPPC32State, guest_CR2_0 ); |
| 633 | case 3: return offsetof(VexGuestPPC32State, guest_CR3_0 ); |
| 634 | case 4: return offsetof(VexGuestPPC32State, guest_CR4_0 ); |
| 635 | case 5: return offsetof(VexGuestPPC32State, guest_CR5_0 ); |
| 636 | case 6: return offsetof(VexGuestPPC32State, guest_CR6_0 ); |
| 637 | case 7: return offsetof(VexGuestPPC32State, guest_CR7_0 ); |
| 638 | default: vpanic("guestCR3offset(ppc32)"); |
| 639 | } |
| 640 | } |
| 641 | |
| 642 | static void putCR321 ( UInt cr, IRExpr* e ) |
| 643 | { |
| 644 | vassert(cr < 8); |
| 645 | vassert(typeOfIRExpr(irbb->tyenv, e) == Ity_I8); |
| 646 | stmt( IRStmt_Put(guestCR321offset(cr), e) ); |
| 647 | } |
| 648 | |
| 649 | static void putCR0 ( UInt cr, IRExpr* e ) |
| 650 | { |
| 651 | vassert(cr < 8); |
| 652 | vassert(typeOfIRExpr(irbb->tyenv, e) == Ity_I8); |
| 653 | stmt( IRStmt_Put(guestCR0offset(cr), e) ); |
| 654 | } |
| 655 | |
| 656 | static IRExpr* /* :: Ity_I8 */ getCR0 ( UInt cr ) |
| 657 | { |
| 658 | vassert(cr < 8); |
| 659 | return IRExpr_Get(guestCR0offset(cr), Ity_I8); |
| 660 | } |
| 661 | |
| 662 | static IRExpr* /* :: Ity_I8 */ getCR321 ( UInt cr ) |
| 663 | { |
| 664 | vassert(cr < 8); |
| 665 | return IRExpr_Get(guestCR321offset(cr), Ity_I8); |
| 666 | } |
| 667 | |
| 668 | static IRExpr* /* :: Ity_I8 */ getXER_SO ( void ) |
| 669 | { |
| 670 | return IRExpr_Get( OFFB_XER_SO, Ity_I8 ); |
| 671 | } |
| 672 | |
| 673 | // ROTL(src32, rot_amt5) |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 674 | static IRExpr* ROTL32 ( IRExpr* src, IRExpr* rot_amt ) |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 675 | { |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 676 | IRExpr* masked; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 677 | vassert(typeOfIRExpr(irbb->tyenv,src) == Ity_I32); |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 678 | vassert(typeOfIRExpr(irbb->tyenv,rot_amt) == Ity_I32); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 679 | |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 680 | masked |
| 681 | = unop(Iop_32to8, binop(Iop_And32, rot_amt, mkU32(31))); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 682 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 683 | // (src << rot_amt) | (src >> (32-rot_amt)) |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 684 | /* Note: the MuxOX is not merely an optimisation; it's needed |
| 685 | because otherwise the Shr32 is a shift by the word size when |
| 686 | masked denotes zero. For rotates by immediates, a lot of |
| 687 | this junk gets folded out. */ |
| 688 | return |
| 689 | IRExpr_Mux0X( |
| 690 | masked, |
| 691 | /* zero rotate. */ |
| 692 | src, |
| 693 | /* non-zero rotate */ |
| 694 | binop( Iop_Or32, |
| 695 | binop(Iop_Shl32, src, masked), |
| 696 | binop(Iop_Shr32, src, binop(Iop_Sub8, mkU8(32), masked)) |
| 697 | ) |
| 698 | ); |
cerion | 45b70ff | 2005-01-31 17:03:25 +0000 | [diff] [blame] | 699 | } |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 700 | |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 701 | /* Do the standard effective address calculation: (rA|0) + rB. */ |
| 702 | static IRExpr* /* :: Ity_I32 */ ea_standard ( Int rA, Int rB ) |
| 703 | { |
| 704 | vassert(rA >= 0 && rA < 32); |
| 705 | vassert(rB >= 0 && rB < 32); |
| 706 | if (rA == 0) { |
| 707 | return getIReg(rB); |
| 708 | } else { |
| 709 | return binop(Iop_Add32, getIReg(rA), getIReg(rB)); |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | /* Do the effective address calculation: (rA|0). */ |
| 714 | static IRExpr* /* :: Ity_I32 */ ea_rA_or_zero ( Int rA ) |
| 715 | { |
| 716 | vassert(rA >= 0 && rA < 32); |
| 717 | if (rA == 0) { |
| 718 | return mkU32(0); |
| 719 | } else { |
| 720 | return getIReg(rA); |
| 721 | } |
| 722 | } |
| 723 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 724 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 725 | /*------------------------------------------------------------*/ |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 726 | /*--- Helpers for condition codes. ---*/ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 727 | /*------------------------------------------------------------*/ |
| 728 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 729 | /* Condition register layout. |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 730 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 731 | In the hardware, CR is laid out like this. The leftmost end is the |
| 732 | most significant bit in the register; however the IBM documentation |
| 733 | numbers the bits backwards for some reason. |
| 734 | |
| 735 | CR0 CR1 .......... CR6 CR7 |
| 736 | 0 .. 3 ....................... 28 .. 31 (IBM bit numbering) |
| 737 | 31 28 3 0 (normal bit numbering) |
| 738 | |
| 739 | Each CR field is 4 bits: |
| 740 | |
| 741 | < > == SO |
| 742 | |
| 743 | Hence in IBM's notation, BI=0 indicates CR7.SO, BI=1 is CR7.==, |
| 744 | etc. |
| 745 | |
| 746 | Indexing from BI to guest state: |
| 747 | |
| 748 | let n = BI / 4 |
| 749 | off = BI % 4 |
| 750 | this references CR n: |
| 751 | |
| 752 | off==3 -> guest_CRn_SO |
| 753 | off==2 -> guest_CRn_123 >> 1 |
| 754 | off==1 -> guest_CRn_123 >> 2 |
| 755 | off==0 -> guest_CRn_123 >> 3 |
| 756 | |
| 757 | Bear in mind the only significant bit in guest_CRn_SO is bit 0 |
| 758 | (normal notation) and in guest_CRn_123 the significant bits are |
| 759 | 3, 2 and 1 (normal notation). |
| 760 | */ |
| 761 | /* Fetch the specified CR bit (as per IBM/hardware notation) and |
| 762 | return it at the bottom of an I32; the top 31 bits are guaranteed |
| 763 | to be zero. */ |
| 764 | static IRExpr* /* :: Ity_I32 */ getCRbit ( UInt bi ) |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 765 | { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 766 | UInt n = bi / 4; |
| 767 | UInt off = bi % 4; |
| 768 | vassert(bi < 32); |
| 769 | if (off == 3) { |
| 770 | /* Fetch the SO bit for this CR field */ |
| 771 | /* Note: And32 is redundant paranoia iff guest state only has 0 |
| 772 | or 1 in that slot. */ |
| 773 | return binop(Iop_And32, unop(Iop_8Uto32, getCR0(n)), mkU32(1)); |
| 774 | } else { |
| 775 | /* Fetch the <, > or == bit for this CR field */ |
| 776 | return binop( Iop_And32, |
| 777 | binop( Iop_Shr32, |
| 778 | unop(Iop_8Uto32, getCR321(n)), |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 779 | mkU8(toUChar(3-off)) ), |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 780 | mkU32(1) ); |
| 781 | } |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 782 | } |
| 783 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 784 | /* Dually, write the least significant bit of BIT to the specified CR |
| 785 | bit. Indexing as per getCRbit. */ |
| 786 | static void putCRbit ( UInt bi, IRExpr* bit ) |
| 787 | { |
| 788 | IRExpr* safe; |
| 789 | vassert(typeOfIRExpr(irbb->tyenv,bit) == Ity_I32); |
| 790 | safe = binop(Iop_And32, bit, mkU32(1)); |
| 791 | UInt n = bi / 4; |
| 792 | UInt off = bi % 4; |
| 793 | vassert(bi < 32); |
| 794 | if (off == 3) { |
| 795 | /* This is the SO bit for this CR field */ |
| 796 | putCR0(n, unop(Iop_32to8, safe)); |
| 797 | } else { |
| 798 | off = 3 - off; |
| 799 | vassert(off == 1 || off == 2 || off == 3); |
| 800 | putCR321( |
| 801 | n, |
| 802 | unop( Iop_32to8, |
| 803 | binop( Iop_Or32, |
| 804 | /* old value with field masked out */ |
| 805 | binop(Iop_And32, unop(Iop_8Uto32, getCR321(n)), |
| 806 | mkU32(~(1 << off))), |
| 807 | /* new value in the right place */ |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 808 | binop(Iop_Shl32, safe, mkU8(toUChar(off))) |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 809 | ) |
| 810 | ) |
| 811 | ); |
| 812 | } |
| 813 | } |
| 814 | |
| 815 | |
| 816 | /* Fetch the specified CR bit (as per IBM/hardware notation) and |
| 817 | return it somewhere in an I32; it does not matter where, but |
| 818 | whichever bit it is, all other bits are guaranteed to be zero. In |
| 819 | other words, the I32-typed expression will be zero if the bit is |
| 820 | zero and nonzero if the bit is 1. Write into *where the index |
| 821 | of where the bit will be. */ |
| 822 | |
| 823 | static IRExpr* /* :: Ity_I32 */ getCRbit_anywhere ( UInt bi, Int* where ) |
| 824 | { |
| 825 | UInt n = bi / 4; |
| 826 | UInt off = bi % 4; |
| 827 | vassert(bi < 32); |
| 828 | if (off == 3) { |
| 829 | /* Fetch the SO bit for this CR field */ |
| 830 | /* Note: And32 is redundant paranoia iff guest state only has 0 |
| 831 | or 1 in that slot. */ |
| 832 | *where = 0; |
| 833 | return binop(Iop_And32, unop(Iop_8Uto32, getCR0(n)), mkU32(1)); |
| 834 | } else { |
| 835 | /* Fetch the <, > or == bit for this CR field */ |
| 836 | *where = 3-off; |
| 837 | return binop( Iop_And32, |
| 838 | unop(Iop_8Uto32, getCR321(n)), |
| 839 | mkU32(1 << (3-off)) ); |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | |
| 844 | /* Synthesise the entire CR into a single word. Expensive. */ |
| 845 | |
| 846 | static IRExpr* /* :: Ity_I32 */ getEntireCR ( void ) |
| 847 | { |
| 848 | # define FIELD(_n) \ |
| 849 | binop(Iop_Shl32, \ |
| 850 | unop(Iop_8Uto32, \ |
| 851 | binop(Iop_Or8, \ |
| 852 | binop(Iop_And8, getCR321(_n), mkU8(7<<1)), \ |
| 853 | binop(Iop_And8, getCR0(_n), mkU8(1)) \ |
| 854 | ) \ |
| 855 | ), \ |
| 856 | mkU8(4 * (7-(_n))) \ |
| 857 | ) |
| 858 | |
| 859 | return binop(Iop_Or32, |
| 860 | binop(Iop_Or32, |
| 861 | binop(Iop_Or32, FIELD(0), FIELD(1)), |
| 862 | binop(Iop_Or32, FIELD(2), FIELD(3)) |
| 863 | ), |
| 864 | binop(Iop_Or32, |
| 865 | binop(Iop_Or32, FIELD(4), FIELD(5)), |
| 866 | binop(Iop_Or32, FIELD(6), FIELD(7)) |
| 867 | ) |
| 868 | ); |
| 869 | # undef FIELD |
| 870 | } |
| 871 | |
| 872 | static void putCRfields ( IRExpr* w32, UInt mask ) |
| 873 | { |
| 874 | IRTemp t; |
| 875 | Int cr; |
| 876 | vassert(typeOfIRExpr(irbb->tyenv,w32) == Ity_I32); |
| 877 | vassert(mask < 256); |
| 878 | for (cr = 0; cr < 8; cr++) { |
| 879 | if ((mask & (1 << (7-cr))) == 0) |
| 880 | continue; |
| 881 | t = newTemp(Ity_I32); |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 882 | assign( t, binop(Iop_Shr32, w32, mkU8(toUChar(4*(7-cr)))) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 883 | putCR0( cr, unop(Iop_32to8, |
| 884 | binop(Iop_And32, mkexpr(t), mkU32(1))) ); |
| 885 | putCR321( cr, unop(Iop_32to8, |
| 886 | binop(Iop_And32, mkexpr(t), mkU32(7<<1))) ); |
| 887 | } |
| 888 | } |
| 889 | |
| 890 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 891 | /* Set the CR0 flags following an arithmetic operation. |
| 892 | (Condition Register CR0 Field Definition, PPC32 p60) |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 893 | */ |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 894 | static void set_CR0 ( IRExpr* result ) |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 895 | { |
cerion | 62bec57 | 2005-02-01 21:29:39 +0000 | [diff] [blame] | 896 | vassert(typeOfIRExpr(irbb->tyenv,result) == Ity_I32); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 897 | putCR321( 0, unop(Iop_32to8, |
| 898 | binop(Iop_CmpORD32S, result, mkU32(0))) ); |
| 899 | putCR0( 0, getXER_SO() ); |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 900 | } |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 901 | |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 902 | |
| 903 | /* RES is the result of doing OP on ARGL and ARGR. Set %XER.OV and |
| 904 | %XER.SO accordingly. */ |
| 905 | |
| 906 | static void set_XER_OV( UInt op, IRExpr* res, |
| 907 | IRExpr* argL, IRExpr* argR ) |
| 908 | { |
| 909 | IRTemp t64; |
| 910 | IRExpr* xer_ov; |
| 911 | vassert(op < PPC32G_FLAG_OP_NUMBER); |
| 912 | vassert(typeOfIRExpr(irbb->tyenv,res) == Ity_I32); |
| 913 | vassert(typeOfIRExpr(irbb->tyenv,argL) == Ity_I32); |
| 914 | vassert(typeOfIRExpr(irbb->tyenv,argR) == Ity_I32); |
| 915 | |
| 916 | # define INT32_MIN 0x80000000 |
| 917 | |
| 918 | # define XOR2(_aa,_bb) \ |
| 919 | binop(Iop_Xor32,(_aa),(_bb)) |
| 920 | |
| 921 | # define XOR3(_cc,_dd,_ee) \ |
| 922 | binop(Iop_Xor32,binop(Iop_Xor32,(_cc),(_dd)),(_ee)) |
| 923 | |
| 924 | # define AND3(_ff,_gg,_hh) \ |
| 925 | binop(Iop_And32,binop(Iop_And32,(_ff),(_gg)),(_hh)) |
| 926 | |
| 927 | #define NOT(_jj) \ |
| 928 | unop(Iop_Not32, (_jj)) |
| 929 | |
| 930 | switch (op) { |
| 931 | |
| 932 | case /* 0 */ PPC32G_FLAG_OP_ADD: |
| 933 | case /* 1 */ PPC32G_FLAG_OP_ADDE: |
| 934 | /* (argL^argR^-1) & (argL^res) & (1<<31) ?1:0 */ |
| 935 | // i.e. ((both_same_sign) & (sign_changed) & (sign_mask)) |
| 936 | xer_ov |
| 937 | = AND3( XOR3(argL,argR,mkU32(-1)), |
| 938 | XOR2(argL,res), |
| 939 | mkU32(INT32_MIN) ); |
| 940 | /* xer_ov can only be 0 or 1<<31 */ |
| 941 | xer_ov |
| 942 | = binop(Iop_Shr32, xer_ov, mkU8(31) ); |
| 943 | break; |
| 944 | |
| 945 | case /* 2 */ PPC32G_FLAG_OP_DIVW: |
| 946 | /* (argL == INT32_MIN && argR == -1) || argR == 0 */ |
| 947 | xer_ov |
| 948 | = mkOR1( |
| 949 | mkAND1( |
| 950 | binop(Iop_CmpEQ32, argL, mkU32(INT32_MIN)), |
| 951 | binop(Iop_CmpEQ32, argR, mkU32(-1)) |
| 952 | ), |
| 953 | binop(Iop_CmpEQ32, argR, mkU32(0) ) |
| 954 | ); |
| 955 | xer_ov |
| 956 | = unop(Iop_1Uto32, xer_ov); |
| 957 | break; |
| 958 | |
| 959 | case /* 3 */ PPC32G_FLAG_OP_DIVWU: |
| 960 | /* argR == 0 */ |
| 961 | xer_ov |
| 962 | = unop(Iop_1Uto32, binop(Iop_CmpEQ32, argR, mkU32(0))); |
| 963 | break; |
| 964 | |
| 965 | case /* 4 */ PPC32G_FLAG_OP_MULLW: |
| 966 | /* OV true if result can't be represented in 32 bits |
| 967 | i.e sHi != sign extension of sLo */ |
| 968 | t64 = newTemp(Ity_I64); |
sewardj | 6fa6bf1 | 2005-07-21 17:07:18 +0000 | [diff] [blame] | 969 | assign( t64, binop(Iop_MullS32, argL, argR) ); |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 970 | xer_ov |
| 971 | = binop( Iop_CmpNE32, |
| 972 | unop(Iop_64HIto32, mkexpr(t64)), |
| 973 | binop( Iop_Sar32, |
| 974 | unop(Iop_64to32, mkexpr(t64)), |
| 975 | mkU8(31)) |
| 976 | ); |
| 977 | xer_ov |
| 978 | = unop(Iop_1Uto32, xer_ov); |
| 979 | break; |
| 980 | |
| 981 | case /* 5 */ PPC32G_FLAG_OP_NEG: |
| 982 | /* argL == INT32_MIN */ |
| 983 | xer_ov |
| 984 | = unop( Iop_1Uto32, |
| 985 | binop(Iop_CmpEQ32, argL, mkU32(INT32_MIN)) ); |
| 986 | break; |
| 987 | |
| 988 | case /* 6 */ PPC32G_FLAG_OP_SUBF: |
| 989 | case /* 7 */ PPC32G_FLAG_OP_SUBFC: |
| 990 | case /* 8 */ PPC32G_FLAG_OP_SUBFE: |
| 991 | /* ((~argL)^argR^-1) & ((~argL)^res) & (1<<31) ?1:0; */ |
| 992 | xer_ov |
| 993 | = AND3( XOR3(NOT(argL),argR,mkU32(-1)), |
| 994 | XOR2(NOT(argL),res), |
| 995 | mkU32(INT32_MIN) ); |
| 996 | /* xer_ov can only be 0 or 1<<31 */ |
| 997 | xer_ov |
| 998 | = binop(Iop_Shr32, xer_ov, mkU8(31) ); |
| 999 | break; |
| 1000 | |
| 1001 | default: |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 1002 | vex_printf("set_XER_OV: op = %u\n", op); |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1003 | vpanic("set_XER_OV(ppc32)"); |
| 1004 | } |
| 1005 | |
| 1006 | /* xer_ov MUST denote either 0 or 1, no other value allowed */ |
| 1007 | stmt( IRStmt_Put( OFFB_XER_OV, unop(Iop_32to8, xer_ov) ) ); |
| 1008 | |
| 1009 | /* Update the summary overflow */ |
| 1010 | stmt( IRStmt_Put( |
| 1011 | OFFB_XER_SO, |
| 1012 | binop(Iop_Or8, IRExpr_Get( OFFB_XER_SO, Ity_I8 ), |
| 1013 | IRExpr_Get( OFFB_XER_OV, Ity_I8 ) ) |
| 1014 | )); |
| 1015 | |
| 1016 | # undef INT32_MIN |
| 1017 | # undef AND3 |
| 1018 | # undef XOR3 |
| 1019 | # undef XOR2 |
| 1020 | # undef NOT |
| 1021 | } |
| 1022 | |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 1023 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1024 | /* RES is the result of doing OP on ARGL and ARGR with the old %XER.CA |
| 1025 | value being OLDCA. Set %XER.CA accordingly. */ |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1026 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1027 | static void set_XER_CA( UInt op, |
| 1028 | IRExpr* res, |
| 1029 | IRExpr* argL, |
| 1030 | IRExpr* argR, |
| 1031 | IRExpr* oldca ) |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 1032 | { |
sewardj | 9a036bf | 2005-03-14 18:19:08 +0000 | [diff] [blame] | 1033 | IRExpr* xer_ca; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1034 | vassert(op < PPC32G_FLAG_OP_NUMBER); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1035 | vassert(typeOfIRExpr(irbb->tyenv,res) == Ity_I32); |
| 1036 | vassert(typeOfIRExpr(irbb->tyenv,argL) == Ity_I32); |
| 1037 | vassert(typeOfIRExpr(irbb->tyenv,argR) == Ity_I32); |
| 1038 | vassert(typeOfIRExpr(irbb->tyenv,oldca) == Ity_I32); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1039 | |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1040 | /* Incoming oldca is assumed to hold the values 0 or 1 only. This |
| 1041 | seems reasonable given that it's always generated by |
| 1042 | get_XER_CA(), which masks it accordingly. In any case it being |
| 1043 | 0 or 1 is an invariant of the ppc32 guest state representation; |
| 1044 | if it has any other value, that invariant has been violated. */ |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1045 | |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1046 | switch (op) { |
| 1047 | |
| 1048 | case /* 0 */ PPC32G_FLAG_OP_ADD: |
| 1049 | /* res <u argL */ |
| 1050 | xer_ca |
| 1051 | = unop(Iop_1Uto32, binop(Iop_CmpLT32U, res, argL)); |
| 1052 | break; |
| 1053 | |
| 1054 | case /* 1 */ PPC32G_FLAG_OP_ADDE: |
| 1055 | /* res <u argL || (old_ca==1 && res==argL) */ |
| 1056 | xer_ca |
| 1057 | = mkOR1( |
| 1058 | binop(Iop_CmpLT32U, res, argL), |
| 1059 | mkAND1( |
| 1060 | binop(Iop_CmpEQ32, oldca, mkU32(1)), |
| 1061 | binop(Iop_CmpEQ32, res, argL) |
| 1062 | ) |
| 1063 | ); |
| 1064 | xer_ca |
| 1065 | = unop(Iop_1Uto32, xer_ca); |
| 1066 | break; |
| 1067 | |
| 1068 | case /* 8 */ PPC32G_FLAG_OP_SUBFE: |
| 1069 | /* res <u argR || (old_ca==1 && res==argR) */ |
| 1070 | xer_ca |
| 1071 | = mkOR1( |
| 1072 | binop(Iop_CmpLT32U, res, argR), |
| 1073 | mkAND1( |
| 1074 | binop(Iop_CmpEQ32, oldca, mkU32(1)), |
| 1075 | binop(Iop_CmpEQ32, res, argR) |
| 1076 | ) |
| 1077 | ); |
| 1078 | xer_ca |
| 1079 | = unop(Iop_1Uto32, xer_ca); |
| 1080 | break; |
| 1081 | |
| 1082 | case /* 7 */ PPC32G_FLAG_OP_SUBFC: |
| 1083 | case /* 9 */ PPC32G_FLAG_OP_SUBFI: |
| 1084 | /* res <=u argR */ |
| 1085 | xer_ca |
| 1086 | = unop(Iop_1Uto32, binop(Iop_CmpLE32U, res, argR)); |
| 1087 | break; |
| 1088 | |
| 1089 | case /* 10 */ PPC32G_FLAG_OP_SRAW: |
| 1090 | /* The shift amount is guaranteed to be in 0 .. 63 inclusive. |
| 1091 | If it is <= 31, behave like SRAWI; else XER.CA is the sign |
| 1092 | bit of argL. */ |
| 1093 | /* This term valid for shift amount < 32 only */ |
| 1094 | xer_ca |
| 1095 | = binop( |
| 1096 | Iop_And32, |
| 1097 | binop(Iop_Sar32, argL, mkU8(31)), |
| 1098 | binop( Iop_And32, |
| 1099 | argL, |
| 1100 | binop( Iop_Sub32, |
| 1101 | binop(Iop_Shl32, mkU32(1), unop(Iop_32to8,argR)), |
| 1102 | mkU32(1) ) |
| 1103 | ) |
| 1104 | ); |
| 1105 | xer_ca |
| 1106 | = IRExpr_Mux0X( |
| 1107 | /* shift amt > 31 ? */ |
| 1108 | unop(Iop_1Uto8, binop(Iop_CmpLT32U, mkU32(31), argR)), |
| 1109 | /* no -- be like srawi */ |
| 1110 | unop(Iop_1Uto32, binop(Iop_CmpNE32, xer_ca, mkU32(0))), |
| 1111 | /* yes -- get sign bit of argL */ |
| 1112 | binop(Iop_Shr32, argL, mkU8(31)) |
| 1113 | ); |
| 1114 | break; |
| 1115 | |
| 1116 | case /* 11 */ PPC32G_FLAG_OP_SRAWI: |
| 1117 | /* xer_ca is 1 iff src was negative and bits_shifted_out != |
| 1118 | 0. Since the shift amount is known to be in the range |
| 1119 | 0 .. 31 inclusive the following seems viable: |
| 1120 | xer.ca == 1 iff the following is nonzero: |
| 1121 | (argL >>s 31) -- either all 0s or all 1s |
| 1122 | & (argL & (1<<argR)-1) -- the stuff shifted out */ |
| 1123 | xer_ca |
| 1124 | = binop( |
| 1125 | Iop_And32, |
| 1126 | binop(Iop_Sar32, argL, mkU8(31)), |
| 1127 | binop( Iop_And32, |
| 1128 | argL, |
| 1129 | binop( Iop_Sub32, |
| 1130 | binop(Iop_Shl32, mkU32(1), unop(Iop_32to8,argR)), |
| 1131 | mkU32(1) ) |
| 1132 | ) |
| 1133 | ); |
| 1134 | xer_ca |
| 1135 | = unop(Iop_1Uto32, binop(Iop_CmpNE32, xer_ca, mkU32(0))); |
| 1136 | break; |
| 1137 | |
| 1138 | default: |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 1139 | vex_printf("set_XER_CA: op = %u\n", op); |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1140 | vpanic("set_XER_CA(ppc32)"); |
| 1141 | } |
| 1142 | |
| 1143 | /* xer_ca MUST denote either 0 or 1, no other value allowed */ |
| 1144 | stmt( IRStmt_Put( OFFB_XER_CA, unop(Iop_32to8, xer_ca) ) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1145 | } |
| 1146 | |
| 1147 | static IRExpr* /* :: Ity_I32 */ get_XER_CA ( void ) |
| 1148 | { |
| 1149 | return binop( Iop_And32, |
| 1150 | unop( Iop_8Uto32, |
| 1151 | IRExpr_Get(OFFB_XER_CA, Ity_I8) ), |
| 1152 | mkU32(1) ); |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 1153 | } |
| 1154 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 1155 | |
| 1156 | |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 1157 | /* Set the CR6 flags following an AltiVec compare operation. */ |
| 1158 | static void set_AV_CR6 ( IRExpr* result ) |
| 1159 | { |
| 1160 | vassert(typeOfIRExpr(irbb->tyenv,result) == Ity_V128); |
| 1161 | |
| 1162 | /* CR6[0:3] = {all_ones, 0, all_zeros, 0} |
| 1163 | all_ones = (v[0] && v[1] && v[2] && v[3]) |
| 1164 | all_zeros = ~(v[0] || v[1] || v[2] || v[3]) |
| 1165 | */ |
| 1166 | IRTemp v0 = newTemp(Ity_V128); |
| 1167 | IRTemp v1 = newTemp(Ity_V128); |
| 1168 | IRTemp v2 = newTemp(Ity_V128); |
| 1169 | IRTemp v3 = newTemp(Ity_V128); |
| 1170 | IRTemp rOnes = newTemp(Ity_I8); |
| 1171 | IRTemp rZeros = newTemp(Ity_I8); |
| 1172 | assign( v0, result ); |
| 1173 | assign( v1, binop(Iop_ShrV128, result, mkU8(32)) ); |
| 1174 | assign( v2, binop(Iop_ShrV128, result, mkU8(64)) ); |
| 1175 | assign( v3, binop(Iop_ShrV128, result, mkU8(96)) ); |
| 1176 | |
| 1177 | assign( rOnes, unop(Iop_1Uto8, |
| 1178 | binop(Iop_CmpEQ32, mkU32(0xFFFFFFFF), |
| 1179 | unop(Iop_V128to32, |
| 1180 | binop(Iop_AndV128, |
| 1181 | binop(Iop_AndV128, mkexpr(v0), mkexpr(v1)), |
| 1182 | binop(Iop_AndV128, mkexpr(v2), mkexpr(v3)))))) ); |
| 1183 | |
| 1184 | assign( rZeros, unop(Iop_1Uto8, |
| 1185 | binop(Iop_CmpEQ32, mkU32(0xFFFFFFFF), |
| 1186 | unop(Iop_Not32, |
| 1187 | unop(Iop_V128to32, |
| 1188 | binop(Iop_OrV128, |
| 1189 | binop(Iop_OrV128, mkexpr(v0), mkexpr(v1)), |
| 1190 | binop(Iop_OrV128, mkexpr(v2), mkexpr(v3)))) |
| 1191 | ))) ); |
| 1192 | |
| 1193 | putCR321( 6, binop(Iop_Or8, |
| 1194 | binop(Iop_Shl8, mkexpr(rOnes), mkU8(3)), |
| 1195 | binop(Iop_Shl8, mkexpr(rZeros), mkU8(1))) ); |
| 1196 | putCR0( 6, mkU8(0) ); |
| 1197 | } |
| 1198 | |
| 1199 | |
| 1200 | |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 1201 | /*------------------------------------------------------------*/ |
| 1202 | /*--- Abstract register interface --- */ |
| 1203 | /*------------------------------------------------------------*/ |
| 1204 | |
| 1205 | /* Get a masked word from the given reg */ |
| 1206 | static IRExpr* getReg_masked ( PPC32SPR reg, UInt mask ) |
| 1207 | { |
| 1208 | IRTemp val = newTemp(Ity_I32); |
| 1209 | vassert( reg < PPC32_SPR_MAX ); |
| 1210 | |
| 1211 | switch (reg) { |
| 1212 | |
| 1213 | case PPC32_SPR_FPSCR: { |
| 1214 | vassert((mask & 0x3) == 0x3 || (mask & 0x3) == 0x0); |
| 1215 | vassert((mask & 0xF000) == 0xF000 || (mask & 0xF000) == 0x0); |
| 1216 | /* all masks now refer to valid fields */ |
| 1217 | |
| 1218 | /* Vex-generated code expects to run with the FPSCR set as follows: |
| 1219 | all exceptions masked, round-to-nearest. |
| 1220 | This corresponds to a FPSCR value of 0x0. */ |
| 1221 | |
| 1222 | /* We're only keeping track of the rounding mode, |
| 1223 | so if the mask isn't asking for this, just return 0x0 */ |
| 1224 | if (mask & 0x3) { |
| 1225 | assign( val, IRExpr_Get(OFFB_FPROUND, Ity_I32) ); |
| 1226 | } else { |
| 1227 | assign( val, mkU32(0x0) ); |
| 1228 | } |
| 1229 | break; |
| 1230 | } |
| 1231 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1232 | //zz case PPC32_SPR_VRSAVE: |
| 1233 | //zz assign( val, IRExpr_Get(OFFB_VRSAVE, Ity_I32) ); |
| 1234 | //zz break; |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 1235 | |
| 1236 | case PPC32_SPR_VSCR: |
| 1237 | // All other bits are zero. |
| 1238 | mask = mask & 0x00010001; |
| 1239 | assign( val, IRExpr_Get(OFFB_VSCR, Ity_I32) ); |
| 1240 | break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 1241 | |
| 1242 | default: |
| 1243 | vpanic("getReg(ppc32)"); |
| 1244 | } |
| 1245 | |
| 1246 | if (mask != 0xFFFFFFFF) { |
| 1247 | return binop(Iop_And32, mkexpr(val), mkU32(mask)); |
| 1248 | } else { |
| 1249 | return mkexpr(val); |
| 1250 | } |
| 1251 | } |
| 1252 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1253 | //zz /* Get word from the given reg */ |
| 1254 | //zz static IRExpr* getReg ( PPC32SPR reg ) |
| 1255 | //zz { |
| 1256 | //zz vassert( reg < PPC32_SPR_MAX ); |
| 1257 | //zz return getReg_masked( reg, 0xFFFFFFFF ); |
| 1258 | //zz } |
| 1259 | //zz |
| 1260 | //zz /* Get a right-shifted nibble from given reg[field_idx] |
| 1261 | //zz returns zero padded word */ |
| 1262 | //zz static IRExpr* getReg_field ( PPC32SPR reg, UInt field_idx ) |
| 1263 | //zz { |
| 1264 | //zz IRExpr* fld; |
| 1265 | //zz vassert( field_idx < 8 ); |
| 1266 | //zz vassert( reg < PPC32_SPR_MAX ); |
| 1267 | //zz |
| 1268 | //zz fld = getReg_masked( reg, (0xF << (field_idx*4)) ); |
| 1269 | //zz |
| 1270 | //zz if (field_idx != 0) { |
| 1271 | //zz fld = binop(Iop_Shr32, fld, mkU8(toUChar(field_idx * 4))); |
| 1272 | //zz } |
| 1273 | //zz return fld; |
| 1274 | //zz } |
| 1275 | //zz |
| 1276 | //zz /* Get a right-shifted bit from given reg[bit_idx] |
| 1277 | //zz returns zero padded word */ |
| 1278 | //zz static IRExpr* getReg_bit ( PPC32SPR reg, UInt bit_idx ) |
| 1279 | //zz { |
| 1280 | //zz IRExpr* val; |
| 1281 | //zz vassert( bit_idx < 32 ); |
| 1282 | //zz vassert( reg < PPC32_SPR_MAX ); |
| 1283 | //zz |
| 1284 | //zz val = getReg_masked( reg, 1<<bit_idx ); |
| 1285 | //zz |
| 1286 | //zz if (bit_idx != 0) { |
| 1287 | //zz val = binop(Iop_Shr32, val, mkU8(toUChar(bit_idx))); |
| 1288 | //zz } |
| 1289 | //zz return val; |
| 1290 | //zz } |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 1291 | |
| 1292 | |
| 1293 | |
| 1294 | /* Write masked src to the given reg */ |
| 1295 | static void putReg_masked ( PPC32SPR reg, IRExpr* src, UInt mask ) |
| 1296 | { |
| 1297 | vassert( reg < PPC32_SPR_MAX ); |
| 1298 | vassert( typeOfIRExpr(irbb->tyenv,src ) == Ity_I32 ); |
| 1299 | |
| 1300 | switch (reg) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1301 | //zz case PPC32_SPR_CIA: |
| 1302 | //zz vassert(mask == 0xFFFFFFFF); // Only ever need whole reg |
| 1303 | //zz stmt( IRStmt_Put( OFFB_CIA, src ) ); |
| 1304 | //zz break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 1305 | |
| 1306 | case PPC32_SPR_FPSCR: |
| 1307 | vassert((mask & 0x3) == 0x3 || (mask & 0x3) == 0x0); |
| 1308 | vassert((mask & 0xF000) == 0xF000 || (mask & 0xF000) == 0x0); |
| 1309 | /* all masks now refer to valid fields */ |
| 1310 | |
| 1311 | /* Allow writes to Rounding Mode */ |
| 1312 | if (mask & 0x3) { |
| 1313 | stmt( IRStmt_Put( OFFB_FPROUND, |
| 1314 | binop(Iop_And32, src, mkU32(0x3)) )); |
| 1315 | } |
| 1316 | |
| 1317 | /* |
| 1318 | Give EmWarn for attempted writes to: |
| 1319 | - Exception Controls |
| 1320 | - Non-IEEE Mode |
| 1321 | */ |
| 1322 | if (mask & 0xFC) { // Exception Control, Non-IEE mode |
| 1323 | VexEmWarn ew = EmWarn_PPC32exns; |
| 1324 | |
| 1325 | /* If any of the src::exception_control bits are actually set, |
| 1326 | side-exit to the next insn, reporting the warning, |
| 1327 | so that Valgrind's dispatcher sees the warning. */ |
| 1328 | put_emwarn( mkU32(ew) ); |
| 1329 | stmt( |
| 1330 | IRStmt_Exit( |
| 1331 | binop(Iop_CmpNE32, mkU32(ew), mkU32(EmWarn_NONE)), |
| 1332 | Ijk_EmWarn, |
| 1333 | IRConst_U32(guest_CIA_curr_instr + 4) |
| 1334 | ) |
| 1335 | ); |
| 1336 | } |
| 1337 | |
| 1338 | /* |
| 1339 | Ignore all other writes |
| 1340 | */ |
| 1341 | break; |
| 1342 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1343 | //zz case PPC32_SPR_VRSAVE: |
| 1344 | //zz vassert(mask == 0xFFFFFFFF); // Only ever need whole reg |
| 1345 | //zz stmt( IRStmt_Put( OFFB_VRSAVE, src ) ); |
| 1346 | //zz break; |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 1347 | |
| 1348 | case PPC32_SPR_VSCR: |
| 1349 | // CAB: There are only 2 valid bits in VSCR - maybe split into two vars... |
| 1350 | // ... or perhaps only 1 bit... is non-java mode bit ever set to zero? |
| 1351 | |
| 1352 | // All other bits are 'Reserved'. Ignoring writes to these bits. |
| 1353 | stmt( IRStmt_Put( OFFB_VSCR, |
| 1354 | binop(Iop_Or32, |
| 1355 | binop(Iop_And32, src, mkU32(mask & 0x00010001)), |
| 1356 | getReg_masked( PPC32_SPR_VSCR, (~mask & 0x00010001) )))); |
| 1357 | break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 1358 | |
| 1359 | default: |
| 1360 | vpanic("putReg(ppc32)"); |
| 1361 | } |
| 1362 | } |
| 1363 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1364 | //zz /* Write src to the given reg */ |
| 1365 | //zz static void putReg ( PPC32SPR reg, IRExpr* src ) |
| 1366 | //zz { |
| 1367 | //zz vassert( typeOfIRExpr(irbb->tyenv,src ) == Ity_I32 ); |
| 1368 | //zz vassert( reg < PPC32_SPR_MAX ); |
| 1369 | //zz putReg_masked( reg, src, 0xFFFFFFFF ); |
| 1370 | //zz } |
cerion | 62bec57 | 2005-02-01 21:29:39 +0000 | [diff] [blame] | 1371 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1372 | static void putSPR ( PPC32SPR reg, IRExpr* src ) |
cerion | 7622226 | 2005-02-05 13:45:57 +0000 | [diff] [blame] | 1373 | { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1374 | vassert( typeOfIRExpr(irbb->tyenv,src ) == Ity_I32 ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1375 | switch (reg) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1376 | case PPC32_SPR_CIA: |
| 1377 | stmt( IRStmt_Put( OFFB_CIA, src ) ); |
| 1378 | break; |
| 1379 | case PPC32_SPR_LR: |
| 1380 | stmt( IRStmt_Put( OFFB_LR, src ) ); |
| 1381 | break; |
| 1382 | case PPC32_SPR_CTR: |
| 1383 | stmt( IRStmt_Put( OFFB_CTR, src ) ); |
| 1384 | break; |
| 1385 | case PPC32_SPR_VRSAVE: |
| 1386 | stmt( IRStmt_Put( OFFB_VRSAVE, src ) ); |
| 1387 | break; |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 1388 | case PPC32_SPR_VSCR: |
| 1389 | putReg_masked( reg, src, 0xFFFFFFFF ); |
| 1390 | break; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1391 | default: |
| 1392 | vpanic("putSPR(ppc32)"); |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 1393 | } |
cerion | 7622226 | 2005-02-05 13:45:57 +0000 | [diff] [blame] | 1394 | } |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 1395 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1396 | static IRExpr* /* :: Ity_I32 */ getSPR ( PPC32SPR reg ) |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 1397 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1398 | switch (reg) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1399 | case PPC32_SPR_LR: |
| 1400 | return IRExpr_Get( OFFB_LR, Ity_I32 ); |
| 1401 | case PPC32_SPR_CTR: |
| 1402 | return IRExpr_Get( OFFB_CTR, Ity_I32 ); |
| 1403 | case PPC32_SPR_VRSAVE: |
| 1404 | return IRExpr_Get( OFFB_VRSAVE, Ity_I32 ); |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 1405 | case PPC32_SPR_VSCR: |
| 1406 | return getReg_masked( reg, 0xFFFFFFFF ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1407 | default: |
| 1408 | vpanic("getSPR(ppc32)"); |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1409 | } |
cerion | 7622226 | 2005-02-05 13:45:57 +0000 | [diff] [blame] | 1410 | } |
| 1411 | |
sewardj | 0e2cc67 | 2005-07-29 21:58:51 +0000 | [diff] [blame] | 1412 | |
| 1413 | /* Write least-significant nibble of src to reg[field_idx] */ |
| 1414 | static void putReg_field ( PPC32SPR reg, IRExpr* src, UInt field_idx ) |
| 1415 | { |
| 1416 | vassert( typeOfIRExpr(irbb->tyenv,src ) == Ity_I32 ); |
| 1417 | vassert( field_idx < 8 ); |
| 1418 | vassert( reg < PPC32_SPR_MAX ); |
| 1419 | |
| 1420 | if (field_idx != 0) { |
| 1421 | src = binop(Iop_Shl32, src, mkU8(toUChar(field_idx * 4))); |
| 1422 | } |
| 1423 | putReg_masked( reg, src, (0xF << (field_idx*4)) ); |
| 1424 | } |
| 1425 | |
| 1426 | /* Write least-significant bit of src to reg[bit_idx] */ |
| 1427 | static void putReg_bit ( PPC32SPR reg, IRExpr* src, UInt bit_idx ) |
| 1428 | { |
| 1429 | vassert( typeOfIRExpr(irbb->tyenv,src ) == Ity_I32 ); |
| 1430 | vassert( bit_idx < 32 ); |
| 1431 | vassert( reg < PPC32_SPR_MAX ); |
| 1432 | |
| 1433 | if (bit_idx != 0) { |
| 1434 | src = binop(Iop_Shl32, src, mkU8(toUChar(bit_idx))); |
| 1435 | } |
| 1436 | putReg_masked( reg, src, (1<<bit_idx) ); |
| 1437 | } |
cerion | 7622226 | 2005-02-05 13:45:57 +0000 | [diff] [blame] | 1438 | |
| 1439 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1440 | /*------------------------------------------------------------*/ |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 1441 | /*--- Integer Instruction Translation --- */ |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1442 | /*------------------------------------------------------------*/ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 1443 | |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1444 | /* |
| 1445 | Integer Arithmetic Instructions |
| 1446 | */ |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 1447 | static Bool dis_int_arith ( UInt theInstr ) |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1448 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1449 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 1450 | UChar Rd_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 1451 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 1452 | |
| 1453 | /* D-Form */ |
| 1454 | UInt SIMM_16 = (theInstr >> 0) & 0xFFFF; /* theInstr[0:15] */ |
| 1455 | |
| 1456 | /* XO-Form */ |
| 1457 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 1458 | UChar flag_OE = toUChar((theInstr >> 10) & 1); /* theInstr[10] */ |
| 1459 | UInt opc2 = (theInstr >> 1) & 0x1FF; /* theInstr[1:9] */ |
| 1460 | UChar flag_Rc = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 1461 | |
| 1462 | UInt EXTS_SIMM = 0; |
| 1463 | |
| 1464 | IRTemp Ra = newTemp(Ity_I32); |
| 1465 | IRTemp Rb = newTemp(Ity_I32); |
| 1466 | IRTemp Rd = newTemp(Ity_I32); |
| 1467 | IRTemp res64 = newTemp(Ity_I64); // multiplies need this. |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1468 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1469 | //zz UInt flag_op = PPC32G_FLAG_OP_NUMBER; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1470 | Bool do_rc = False; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1471 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1472 | assign( Ra, getIReg(Ra_addr) ); |
| 1473 | assign( Rb, getIReg(Rb_addr) ); // XO-Form: Rd, Ra, Rb |
| 1474 | EXTS_SIMM = extend_s_16to32(SIMM_16); // D-Form: Rd, Ra, EXTS(SIMM) |
cerion | 932ad94 | 2005-01-30 10:18:50 +0000 | [diff] [blame] | 1475 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1476 | //zz assign( xer_ca, getReg_bit( PPC32_SPR_XER, SHIFT_XER_CA ) ); |
| 1477 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1478 | switch (opc1) { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1479 | /* D-Form */ |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1480 | case 0x0C: // addic (Add Immediate Carrying, PPC32 p351 |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 1481 | DIP("addic r%d,r%d,0x%x\n", Rd_addr, Ra_addr, EXTS_SIMM); |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 1482 | assign( Rd, binop( Iop_Add32, mkexpr(Ra), mkU32(EXTS_SIMM) ) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1483 | set_XER_CA( PPC32G_FLAG_OP_ADD, |
| 1484 | mkexpr(Rd), mkexpr(Ra), mkU32(EXTS_SIMM), |
| 1485 | mkU32(0)/*old xer.ca, which is ignored*/ ); |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 1486 | break; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1487 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1488 | case 0x0D: // addic. (Add Immediate Carrying and Record, PPC32 p352) |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 1489 | DIP("addic. r%d,r%d,0x%x\n", Rd_addr, Ra_addr, EXTS_SIMM); |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 1490 | assign( Rd, binop( Iop_Add32, mkexpr(Ra), mkU32(EXTS_SIMM) ) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1491 | set_XER_CA( PPC32G_FLAG_OP_ADD, |
| 1492 | mkexpr(Rd), mkexpr(Ra), mkU32(EXTS_SIMM), |
| 1493 | mkU32(0)/*old xer.ca, which is ignored*/ ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1494 | do_rc = True; // Always record to CR |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 1495 | flag_Rc = 1; |
| 1496 | break; |
| 1497 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1498 | case 0x0E: // addi (Add Immediate, PPC32 p350) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1499 | // li rD,val == addi rD,0,val |
| 1500 | // la disp(rA) == addi rD,rA,disp |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1501 | if ( Ra_addr == 0 ) { |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 1502 | DIP("li r%d,%d\n", Rd_addr, (Int)EXTS_SIMM); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1503 | assign( Rd, mkU32(EXTS_SIMM) ); |
| 1504 | } else { |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 1505 | DIP("addi r%d,r%d,0x%x\n", Rd_addr, Ra_addr, (Int)SIMM_16); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1506 | assign( Rd, binop( Iop_Add32, mkexpr(Ra), mkU32(EXTS_SIMM) ) ); |
| 1507 | } |
| 1508 | break; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1509 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1510 | case 0x0F: // addis (Add Immediate Shifted, PPC32 p353) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1511 | // lis rD,val == addis rD,0,val |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1512 | if ( Ra_addr == 0 ) { |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 1513 | DIP("lis r%d,%d\n", Rd_addr, (Int)SIMM_16); |
cerion | 7c1dd1b | 2005-02-22 18:39:18 +0000 | [diff] [blame] | 1514 | assign( Rd, mkU32(SIMM_16 << 16) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1515 | } else { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1516 | DIP("addis r%d,r%d,0x%x\n", Rd_addr, Ra_addr, SIMM_16); |
cerion | 7c1dd1b | 2005-02-22 18:39:18 +0000 | [diff] [blame] | 1517 | assign( Rd, binop(Iop_Add32, mkexpr(Ra), mkU32(SIMM_16 << 16)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1518 | } |
| 1519 | break; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1520 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1521 | case 0x07: // mulli (Multiply Low Immediate, PPC32 p490) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1522 | DIP("mulli r%d,r%d,0x%x\n", Rd_addr, Ra_addr, SIMM_16); |
| 1523 | assign( res64, binop(Iop_MullS32, mkexpr(Ra), mkU32(EXTS_SIMM)) ); |
| 1524 | assign( Rd, unop(Iop_64to32, mkexpr(res64)) ); |
| 1525 | break; |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 1526 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1527 | case 0x08: // subfic (Subtract from Immediate Carrying, PPC32 p540) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1528 | DIP("subfic r%d,r%d,0x%x\n", Rd_addr, Ra_addr, SIMM_16); |
cerion | 0190847 | 2005-02-25 16:43:08 +0000 | [diff] [blame] | 1529 | // rD = exts_simm - rA |
cerion | 9d88da6 | 2005-02-25 10:23:46 +0000 | [diff] [blame] | 1530 | assign( Rd, binop(Iop_Sub32, mkU32(EXTS_SIMM), mkexpr(Ra)) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1531 | set_XER_CA( PPC32G_FLAG_OP_SUBFI, |
| 1532 | mkexpr(Rd), mkexpr(Ra), mkU32(EXTS_SIMM), |
| 1533 | mkU32(0)/*old xer.ca, which is ignored*/ ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1534 | break; |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 1535 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1536 | /* XO-Form */ |
| 1537 | case 0x1F: |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1538 | do_rc = True; // All below record to CR |
| 1539 | |
| 1540 | switch (opc2) { |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1541 | case 0x10A: // add (Add, PPC32 p347) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1542 | DIP("add%s%s r%d,r%d,r%d\n", |
| 1543 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1544 | Rd_addr, Ra_addr, Rb_addr); |
| 1545 | assign( Rd, binop(Iop_Add32, mkexpr(Ra), mkexpr(Rb)) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1546 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1547 | set_XER_OV( PPC32G_FLAG_OP_ADD, |
| 1548 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1549 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1550 | break; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1551 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1552 | case 0x00A: // addc (Add Carrying, PPC32 p348) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1553 | DIP("addc%s%s r%d,r%d,r%d\n", |
| 1554 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1555 | Rd_addr, Ra_addr, Rb_addr); |
| 1556 | assign( Rd, binop(Iop_Add32, mkexpr(Ra), mkexpr(Rb)) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1557 | set_XER_CA( PPC32G_FLAG_OP_ADD, |
| 1558 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb), |
| 1559 | mkU32(0)/*old xer.ca, which is ignored*/ ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1560 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1561 | set_XER_OV( PPC32G_FLAG_OP_ADD, |
| 1562 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1563 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1564 | break; |
| 1565 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1566 | case 0x08A: { // adde (Add Extended, PPC32 p349) |
| 1567 | IRTemp old_xer_ca = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1568 | DIP("adde%s%s r%d,r%d,r%d\n", |
| 1569 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1570 | Rd_addr, Ra_addr, Rb_addr); |
| 1571 | // rD = rA + rB + XER[CA] |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1572 | assign( old_xer_ca, get_XER_CA() ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1573 | assign( Rd, binop(Iop_Add32, mkexpr(Ra), |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1574 | binop(Iop_Add32, mkexpr(Rb), mkexpr(old_xer_ca))) ); |
| 1575 | set_XER_CA( PPC32G_FLAG_OP_ADDE, |
| 1576 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb), |
| 1577 | mkexpr(old_xer_ca) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1578 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1579 | set_XER_OV( PPC32G_FLAG_OP_ADDE, |
| 1580 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1581 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1582 | break; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1583 | } |
| 1584 | |
| 1585 | case 0x0EA: { // addme (Add to Minus One Extended, PPC32 p354) |
| 1586 | IRTemp old_xer_ca = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1587 | if (Rb_addr != 0) { |
| 1588 | vex_printf("dis_int_arith(PPC32)(addme,Rb_addr)\n"); |
| 1589 | return False; |
| 1590 | } |
| 1591 | DIP("addme%s%s r%d,r%d,r%d\n", |
| 1592 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1593 | Rd_addr, Ra_addr, Rb_addr); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1594 | // rD = rA + (-1) + XER[CA] |
| 1595 | // => Just another form of adde |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1596 | assign( old_xer_ca, get_XER_CA() ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1597 | assign( Rd, binop(Iop_Add32, mkexpr(Ra), |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1598 | binop(Iop_Add32, mkU32(-1), mkexpr(old_xer_ca)) )); |
| 1599 | set_XER_CA( PPC32G_FLAG_OP_ADDE, |
| 1600 | mkexpr(Rd), mkexpr(Ra), mkU32(-1), |
| 1601 | mkexpr(old_xer_ca) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1602 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1603 | set_XER_OV( PPC32G_FLAG_OP_ADDE, |
| 1604 | mkexpr(Rd), mkexpr(Ra), mkU32(-1) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1605 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1606 | break; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1607 | } |
| 1608 | |
| 1609 | case 0x0CA: { // addze (Add to Zero Extended, PPC32 p355) |
| 1610 | IRTemp old_xer_ca = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1611 | if (Rb_addr != 0) { |
| 1612 | vex_printf("dis_int_arith(PPC32)(addze,Rb_addr)\n"); |
| 1613 | return False; |
| 1614 | } |
| 1615 | DIP("addze%s%s r%d,r%d,r%d\n", |
| 1616 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1617 | Rd_addr, Ra_addr, Rb_addr); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1618 | // rD = rA + (0) + XER[CA] |
| 1619 | // => Just another form of adde |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1620 | assign( old_xer_ca, get_XER_CA() ); |
| 1621 | assign( Rd, binop(Iop_Add32, mkexpr(Ra), mkexpr(old_xer_ca)) ); |
| 1622 | set_XER_CA( PPC32G_FLAG_OP_ADDE, |
| 1623 | mkexpr(Rd), mkexpr(Ra), mkU32(0), |
| 1624 | mkexpr(old_xer_ca) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1625 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1626 | set_XER_OV( PPC32G_FLAG_OP_ADDE, |
| 1627 | mkexpr(Rd), mkexpr(Ra), mkU32(0) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1628 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1629 | break; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1630 | } |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1631 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1632 | case 0x1EB: // divw (Divide Word, PPC32 p388) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1633 | DIP("divw%s%s r%d,r%d,r%d\n", |
| 1634 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1635 | Rd_addr, Ra_addr, Rb_addr); |
| 1636 | assign( Rd, binop(Iop_DivS32, mkexpr(Ra), mkexpr(Rb)) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1637 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1638 | set_XER_OV( PPC32G_FLAG_OP_DIVW, |
| 1639 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1640 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1641 | /* Note: |
| 1642 | if (0x8000_0000 / -1) or (x / 0) |
| 1643 | => Rd=undef, if(flag_Rc) CR7=undef, if(flag_OE) XER_OV=1 |
| 1644 | => But _no_ exception raised. */ |
| 1645 | break; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1646 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1647 | case 0x1CB: // divwu (Divide Word Unsigned, PPC32 p389) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1648 | DIP("divwu%s%s r%d,r%d,r%d\n", |
| 1649 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1650 | Rd_addr, Ra_addr, Rb_addr); |
| 1651 | assign( Rd, binop(Iop_DivU32, mkexpr(Ra), mkexpr(Rb)) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1652 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1653 | set_XER_OV( PPC32G_FLAG_OP_DIVWU, |
| 1654 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1655 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1656 | /* Note: ditto comment divw, for (x / 0) */ |
| 1657 | break; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1658 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1659 | case 0x04B: // mulhw (Multiply High Word, PPC32 p488) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1660 | if (flag_OE != 0) { |
| 1661 | vex_printf("dis_int_arith(PPC32)(mulhw,flag_OE)\n"); |
| 1662 | return False; |
| 1663 | } |
| 1664 | DIP("mulhw%s r%d,r%d,r%d\n", flag_Rc ? "." : "", |
| 1665 | Rd_addr, Ra_addr, Rb_addr); |
| 1666 | assign( res64, binop(Iop_MullS32, mkexpr(Ra), mkexpr(Rb)) ); |
| 1667 | assign( Rd, unop(Iop_64HIto32, mkexpr(res64)) ); |
| 1668 | break; |
cerion | c19d5e1 | 2005-02-01 15:56:25 +0000 | [diff] [blame] | 1669 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1670 | case 0x00B: // mulhwu (Multiply High Word Unsigned, PPC32 p489) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1671 | if (flag_OE != 0) { |
| 1672 | vex_printf("dis_int_arith(PPC32)(mulhwu,flag_OE)\n"); |
| 1673 | return False; |
| 1674 | } |
| 1675 | DIP("mulhwu%s r%d,r%d,r%d\n", flag_Rc ? "." : "", |
| 1676 | Rd_addr, Ra_addr, Rb_addr); |
| 1677 | assign( res64, binop(Iop_MullU32, mkexpr(Ra), mkexpr(Rb)) ); |
| 1678 | assign( Rd, unop(Iop_64HIto32, mkexpr(res64)) ); |
| 1679 | break; |
| 1680 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1681 | case 0x0EB: // mullw (Multiply Low Word, PPC32 p491) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1682 | DIP("mullw%s%s r%d,r%d,r%d\n", |
| 1683 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1684 | Rd_addr, Ra_addr, Rb_addr); |
| 1685 | assign( res64, binop(Iop_MullU32, mkexpr(Ra), mkexpr(Rb)) ); |
| 1686 | assign( Rd, unop(Iop_64to32, mkexpr(res64)) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1687 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1688 | set_XER_OV( PPC32G_FLAG_OP_MULLW, |
| 1689 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1690 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1691 | break; |
cerion | c19d5e1 | 2005-02-01 15:56:25 +0000 | [diff] [blame] | 1692 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1693 | case 0x068: // neg (Negate, PPC32 p493) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1694 | if (Rb_addr != 0) { |
| 1695 | vex_printf("dis_int_arith(PPC32)(neg,Rb_addr)\n"); |
| 1696 | return False; |
| 1697 | } |
| 1698 | DIP("neg%s%s r%d,r%d\n", |
| 1699 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1700 | Rd_addr, Ra_addr); |
| 1701 | // rD = (log not)rA + 1 |
| 1702 | assign( Rd, binop(Iop_Add32, |
| 1703 | unop(Iop_Not32, mkexpr(Ra)), mkU32(1)) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1704 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1705 | set_XER_OV( PPC32G_FLAG_OP_NEG, |
| 1706 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1707 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1708 | break; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1709 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1710 | case 0x028: // subf (Subtract From, PPC32 p537) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1711 | DIP("subf%s%s r%d,r%d,r%d\n", |
| 1712 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1713 | Rd_addr, Ra_addr, Rb_addr); |
cerion | 0190847 | 2005-02-25 16:43:08 +0000 | [diff] [blame] | 1714 | // rD = rB - rA |
| 1715 | assign( Rd, binop(Iop_Sub32, mkexpr(Rb), mkexpr(Ra)) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1716 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1717 | set_XER_OV( PPC32G_FLAG_OP_SUBF, |
| 1718 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1719 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1720 | break; |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 1721 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1722 | case 0x008: // subfc (Subtract from Carrying, PPC32 p538) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1723 | DIP("subfc%s%s r%d,r%d,r%d\n", |
| 1724 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1725 | Rd_addr, Ra_addr, Rb_addr); |
cerion | 0190847 | 2005-02-25 16:43:08 +0000 | [diff] [blame] | 1726 | // rD = rB - rA |
| 1727 | assign( Rd, binop(Iop_Sub32, mkexpr(Rb), mkexpr(Ra)) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1728 | set_XER_CA( PPC32G_FLAG_OP_SUBFC, |
| 1729 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb), |
| 1730 | mkU32(0)/*old xer.ca, which is ignored*/ ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1731 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1732 | set_XER_OV( PPC32G_FLAG_OP_SUBFC, |
| 1733 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1734 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1735 | break; |
| 1736 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1737 | case 0x088: {// subfe (Subtract from Extended, PPC32 p539) |
| 1738 | IRTemp old_xer_ca = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1739 | DIP("subfe%s%s r%d,r%d,r%d\n", |
| 1740 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1741 | Rd_addr, Ra_addr, Rb_addr); |
| 1742 | // rD = (log not)rA + rB + XER[CA] |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1743 | assign( old_xer_ca, get_XER_CA() ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1744 | assign( Rd, binop(Iop_Add32, unop(Iop_Not32, mkexpr(Ra)), |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1745 | binop(Iop_Add32, mkexpr(Rb), mkexpr(old_xer_ca))) ); |
| 1746 | set_XER_CA( PPC32G_FLAG_OP_SUBFE, |
| 1747 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb), |
| 1748 | mkexpr(old_xer_ca) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1749 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1750 | set_XER_OV( PPC32G_FLAG_OP_SUBFE, |
| 1751 | mkexpr(Rd), mkexpr(Ra), mkexpr(Rb) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1752 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1753 | break; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1754 | } |
| 1755 | |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1756 | case 0x0E8: { // subfme (Subtract from Minus One Extended, PPC32 p541) |
| 1757 | IRTemp old_xer_ca = newTemp(Ity_I32); |
| 1758 | if (Rb_addr != 0) { |
| 1759 | vex_printf("dis_int_arith(PPC32)(subfme,Rb_addr)\n"); |
| 1760 | return False; |
| 1761 | } |
| 1762 | DIP("subfme%s%s r%d,r%d\n", |
| 1763 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1764 | Rd_addr, Ra_addr); |
| 1765 | // rD = (log not)rA + (-1) + XER[CA] |
| 1766 | // => Just another form of subfe |
| 1767 | assign( old_xer_ca, get_XER_CA() ); |
| 1768 | assign( Rd, binop(Iop_Add32, unop(Iop_Not32, mkexpr(Ra)), |
| 1769 | binop(Iop_Add32, mkU32(-1), mkexpr(old_xer_ca))) ); |
| 1770 | set_XER_CA( PPC32G_FLAG_OP_SUBFE, |
| 1771 | mkexpr(Rd), mkexpr(Ra), mkU32(-1), |
| 1772 | mkexpr(old_xer_ca) ); |
| 1773 | if (flag_OE) { |
| 1774 | set_XER_OV( PPC32G_FLAG_OP_SUBFE, |
| 1775 | mkexpr(Rd), mkexpr(Ra), mkU32(-1) ); |
| 1776 | } |
| 1777 | break; |
| 1778 | } |
| 1779 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1780 | case 0x0C8: { // subfze (Subtract from Zero Extended, PPC32 p542) |
| 1781 | IRTemp old_xer_ca = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1782 | if (Rb_addr != 0) { |
| 1783 | vex_printf("dis_int_arith(PPC32)(subfze,Rb_addr)\n"); |
| 1784 | return False; |
| 1785 | } |
| 1786 | DIP("subfze%s%s r%d,r%d\n", |
| 1787 | flag_OE ? "o" : "", flag_Rc ? "." : "", |
| 1788 | Rd_addr, Ra_addr); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1789 | // rD = (log not)rA + (0) + XER[CA] |
| 1790 | // => Just another form of subfe |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1791 | assign( old_xer_ca, get_XER_CA() ); |
| 1792 | assign( Rd, binop(Iop_Add32, |
| 1793 | unop(Iop_Not32, mkexpr(Ra)), mkexpr(old_xer_ca)) ); |
| 1794 | set_XER_CA( PPC32G_FLAG_OP_SUBFE, |
| 1795 | mkexpr(Rd), mkexpr(Ra), mkU32(0), |
| 1796 | mkexpr(old_xer_ca) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1797 | if (flag_OE) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1798 | set_XER_OV( PPC32G_FLAG_OP_SUBFE, |
| 1799 | mkexpr(Rd), mkexpr(Ra), mkU32(0) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1800 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1801 | break; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1802 | } |
cerion | ae69462 | 2005-01-28 17:52:47 +0000 | [diff] [blame] | 1803 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1804 | default: |
| 1805 | vex_printf("dis_int_arith(PPC32)(opc2)\n"); |
| 1806 | return False; |
| 1807 | } |
| 1808 | break; |
| 1809 | default: |
| 1810 | vex_printf("dis_int_arith(PPC32)(opc1)\n"); |
| 1811 | return False; |
| 1812 | } |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1813 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1814 | putIReg( Rd_addr, mkexpr(Rd) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1815 | if (do_rc && flag_Rc) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 1816 | set_CR0( mkexpr(Rd) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1817 | } |
| 1818 | return True; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 1819 | } |
| 1820 | |
| 1821 | |
| 1822 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 1823 | /* |
| 1824 | Integer Compare Instructions |
| 1825 | */ |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 1826 | static Bool dis_int_cmp ( UInt theInstr ) |
| 1827 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1828 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 1829 | UChar crfD = toUChar((theInstr >> 23) & 0x7); /* theInstr[23:25] */ |
| 1830 | UChar b9 = toUChar((theInstr >> 22) & 0x1); /* theInstr[22] */ |
| 1831 | UChar flag_L = toUChar((theInstr >> 21) & 0x1); /* theInstr[21] */ |
| 1832 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 1833 | |
| 1834 | /* D-Form */ |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1835 | UInt UIMM_16 = (theInstr >> 0) & 0xFFFF; /* theInstr[0:15] */ |
| 1836 | |
| 1837 | /* X-Form */ |
| 1838 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 1839 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 1840 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 1841 | |
| 1842 | UInt EXTS_SIMM = 0; |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1843 | IRTemp Ra = newTemp(Ity_I32); |
| 1844 | IRTemp Rb = newTemp(Ity_I32); |
sewardj | 7f08078 | 2005-07-27 00:22:15 +0000 | [diff] [blame] | 1845 | //uu IRTemp xer_so = newTemp(Ity_I32); |
| 1846 | //uu IRTemp cr7 = newTemp(Ity_I32); |
| 1847 | //uu IRTemp mux1 = newTemp(Ity_I32); |
| 1848 | //uu IRTemp mux2 = newTemp(Ity_I32); |
| 1849 | //uu IRExpr* irx_cmp_lt; |
| 1850 | //uu IRExpr* irx_cmp_eq; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 1851 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1852 | assign( Ra, getIReg(Ra_addr) ); |
| 1853 | |
| 1854 | if (flag_L==1) { // L==1 invalid for 32 bit. |
| 1855 | vex_printf("dis_int_cmp(PPC32)(flag_L)\n"); |
| 1856 | return False; |
| 1857 | } |
| 1858 | |
| 1859 | if (b9 != 0) { |
| 1860 | vex_printf("dis_int_cmp(PPC32)(b9)\n"); |
| 1861 | return False; |
| 1862 | } |
| 1863 | |
| 1864 | switch (opc1) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1865 | case 0x0B: // cmpi (Compare Immediate, PPC32 p368) |
| 1866 | EXTS_SIMM = extend_s_16to32(UIMM_16); |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 1867 | DIP("cmp cr%d,r%d,%d\n", crfD, Ra_addr, (Int)EXTS_SIMM); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1868 | putCR321( crfD, unop(Iop_32to8, |
| 1869 | binop(Iop_CmpORD32S, mkexpr(Ra), |
| 1870 | mkU32(EXTS_SIMM))) ); |
| 1871 | putCR0( crfD, getXER_SO() ); |
| 1872 | break; |
| 1873 | |
| 1874 | case 0x0A: // cmpli (Compare Logical Immediate, PPC32 p370) |
| 1875 | DIP("cmpli cr%d,r%d,0x%x\n", crfD, Ra_addr, UIMM_16); |
| 1876 | putCR321( crfD, unop(Iop_32to8, |
| 1877 | binop(Iop_CmpORD32U, mkexpr(Ra), |
| 1878 | mkU32(UIMM_16))) ); |
| 1879 | putCR0( crfD, getXER_SO() ); |
| 1880 | break; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1881 | |
| 1882 | /* X Form */ |
| 1883 | case 0x1F: |
| 1884 | if (b0 != 0) { |
| 1885 | vex_printf("dis_int_cmp(PPC32)(0x1F,b0)\n"); |
| 1886 | return False; |
| 1887 | } |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1888 | assign( Rb, getIReg(Rb_addr) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1889 | //zz irx_cmp_eq = binop(Iop_CmpEQ32, mkexpr(Ra), mkexpr(Rb)); |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 1890 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1891 | switch (opc2) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1892 | case 0x000: // cmp (Compare, PPC32 p367) |
| 1893 | DIP("cmp cr%d,r%d,r%d\n", crfD, Ra_addr, Rb_addr); |
| 1894 | putCR321( crfD, unop(Iop_32to8, |
| 1895 | binop(Iop_CmpORD32S, mkexpr(Ra), mkexpr(Rb))) ); |
| 1896 | putCR0( crfD, getXER_SO() ); |
| 1897 | break; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1898 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1899 | case 0x020: // cmpl (Compare Logical, PPC32 p369) |
| 1900 | DIP("cmpl cr%d,r%d,r%d\n", crfD, Ra_addr, Rb_addr); |
| 1901 | putCR321( crfD, unop(Iop_32to8, |
| 1902 | binop(Iop_CmpORD32U, mkexpr(Ra), mkexpr(Rb))) ); |
| 1903 | putCR0( crfD, getXER_SO() ); |
| 1904 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 1905 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1906 | default: |
| 1907 | vex_printf("dis_int_cmp(PPC32)(opc2)\n"); |
| 1908 | return False; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1909 | } |
| 1910 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 1911 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1912 | default: |
| 1913 | vex_printf("dis_int_cmp(PPC32)(opc1)\n"); |
| 1914 | return False; |
| 1915 | } |
| 1916 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 1917 | //zz irx_cmp_lt = unop(Iop_1Uto8, irx_cmp_lt); |
| 1918 | //zz irx_cmp_eq = unop(Iop_1Uto8, irx_cmp_eq); |
| 1919 | //zz |
| 1920 | //zz // mux_shift_bit = (argL < argR) ? LT : GT (or EQ...) |
| 1921 | //zz assign( mux1, IRExpr_Mux0X( irx_cmp_lt, mkU32(SHIFT_CR_GT), mkU32(SHIFT_CR_LT) )); |
| 1922 | //zz |
| 1923 | //zz // mux_shift_bit = (argL == argR) ? EQ : GT|LT |
| 1924 | //zz assign( mux2, IRExpr_Mux0X( irx_cmp_eq, mkexpr(mux1), mkU32(SHIFT_CR_EQ) )); |
| 1925 | //zz |
| 1926 | //zz assign( xer_so, getReg_bit( PPC32_SPR_XER, SHIFT_XER_SO ) ); |
| 1927 | //zz assign( cr7, binop(Iop_Or32, mkexpr(mux2), mkexpr(xer_so)) ); |
| 1928 | //zz putReg_field( PPC32_SPR_CR, mkexpr(cr7), 7-crfD ); |
| 1929 | //zz return True; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1930 | return True; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 1931 | } |
| 1932 | |
| 1933 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 1934 | /* |
| 1935 | Integer Logical Instructions |
| 1936 | */ |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 1937 | static Bool dis_int_logic ( UInt theInstr ) |
| 1938 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1939 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 1940 | UChar Rs_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 1941 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 1942 | |
| 1943 | /* D-Form */ |
| 1944 | UInt UIMM_16 = (theInstr >> 0) & 0xFFFF; /* theInstr[0:15] */ |
| 1945 | |
| 1946 | /* X-Form */ |
| 1947 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 1948 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 1949 | UChar flag_Rc = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 1950 | |
| 1951 | Bool do_rc = False; |
| 1952 | |
| 1953 | IRTemp Rs = newTemp(Ity_I32); |
| 1954 | IRTemp Ra = newTemp(Ity_I32); |
| 1955 | IRTemp Rb = newTemp(Ity_I32); |
sewardj | 7f08078 | 2005-07-27 00:22:15 +0000 | [diff] [blame] | 1956 | //uu IRTemp Sign = newTemp(Ity_I32); |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1957 | IRExpr* irx; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1958 | |
cerion | a31e8b5 | 2005-02-21 16:30:45 +0000 | [diff] [blame] | 1959 | assign( Rs, getIReg(Rs_addr) ); |
| 1960 | assign( Rb, getIReg(Rb_addr) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1961 | |
| 1962 | switch (opc1) { |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1963 | case 0x1C: // andi. (AND Immediate, PPC32 p358) |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 1964 | DIP("andi. r%d,r%d,0x%x\n", Ra_addr, Rs_addr, UIMM_16); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1965 | assign( Ra, binop(Iop_And32, mkexpr(Rs), mkU32(UIMM_16)) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1966 | do_rc = True; // Always record to CR |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1967 | flag_Rc = 1; |
| 1968 | break; |
| 1969 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1970 | case 0x1D: // andis. (AND Immediate Shifted, PPC32 p359) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1971 | DIP("andis r%d,r%d,0x%x\n", Ra_addr, Rs_addr, UIMM_16); |
| 1972 | assign( Ra, binop(Iop_And32, mkexpr(Rs), mkU32(UIMM_16 << 16)) ); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1973 | do_rc = True; // Always record to CR |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1974 | flag_Rc = 1; |
| 1975 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 1976 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1977 | case 0x18: // ori (OR Immediate, PPC32 p497) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1978 | DIP("ori r%d,r%d,0x%x\n", Ra_addr, Rs_addr, UIMM_16); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1979 | assign( Ra, binop(Iop_Or32, mkexpr(Rs), mkU32(UIMM_16)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1980 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 1981 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1982 | case 0x19: // oris (OR Immediate Shifted, PPC32 p498) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1983 | DIP("oris r%d,r%d,0x%x\n", Ra_addr, Rs_addr, UIMM_16); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1984 | assign( Ra, binop(Iop_Or32, mkexpr(Rs), mkU32(UIMM_16 << 16)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1985 | break; |
cerion | aabdfbf | 2005-01-29 12:56:15 +0000 | [diff] [blame] | 1986 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1987 | case 0x1A: // xori (XOR Immediate, PPC32 p550) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1988 | DIP("xori r%d,r%d,0x%x\n", Ra_addr, Rs_addr, UIMM_16); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1989 | assign( Ra, binop(Iop_Xor32, mkexpr(Rs), mkU32(UIMM_16)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1990 | break; |
cerion | 3867460 | 2005-02-08 02:19:25 +0000 | [diff] [blame] | 1991 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 1992 | case 0x1B: // xoris (XOR Immediate Shifted, PPC32 p551) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1993 | DIP("xoris r%d,r%d,0x%x\n", Ra_addr, Rs_addr, UIMM_16); |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1994 | assign( Ra, binop(Iop_Xor32, mkexpr(Rs), mkU32(UIMM_16 << 16)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1995 | break; |
cerion | aabdfbf | 2005-01-29 12:56:15 +0000 | [diff] [blame] | 1996 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 1997 | /* X Form */ |
| 1998 | case 0x1F: |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 1999 | do_rc = True; // All below record to CR |
| 2000 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2001 | switch (opc2) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2002 | case 0x01C: // and (AND, PPC32 p356) |
| 2003 | DIP("and%s r%d,r%d,r%d\n", |
| 2004 | flag_Rc ? "." : "", Ra_addr, Rs_addr, Rb_addr); |
| 2005 | assign(Ra, binop(Iop_And32, mkexpr(Rs), mkexpr(Rb))); |
| 2006 | break; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2007 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2008 | case 0x03C: // andc (AND with Complement, PPC32 p357) |
| 2009 | DIP("andc%s r%d,r%d,r%d\n", |
| 2010 | flag_Rc ? "." : "", Ra_addr, Rs_addr, Rb_addr); |
| 2011 | assign(Ra, binop(Iop_And32, mkexpr(Rs), |
| 2012 | unop(Iop_Not32, mkexpr(Rb)))); |
| 2013 | break; |
| 2014 | |
| 2015 | case 0x01A: // cntlzw (Count Leading Zeros Word, PPC32 p371) |
| 2016 | if (Rb_addr!=0) { |
| 2017 | vex_printf("dis_int_logic(PPC32)(cntlzw,Rb_addr)\n"); |
| 2018 | return False; |
| 2019 | } |
| 2020 | DIP("cntlzw%s r%d,r%d\n", |
| 2021 | flag_Rc ? "." : "", Ra_addr, Rs_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2022 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2023 | // Iop_Clz32 undefined for arg==0, so deal with that case: |
| 2024 | irx = binop(Iop_CmpNE32, mkexpr(Rs), mkU32(0)); |
| 2025 | assign(Ra, IRExpr_Mux0X( unop(Iop_1Uto8, irx), |
| 2026 | mkU32(32), |
| 2027 | unop(Iop_Clz32, mkexpr(Rs)) )); |
sewardj | c808ef7 | 2005-08-18 11:50:43 +0000 | [diff] [blame] | 2028 | // alternatively: assign(Ra, verbose_Clz32(Rs)); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2029 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 2030 | |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 2031 | case 0x11C: // eqv (Equivalent, PPC32 p396) |
| 2032 | DIP("eqv%s r%d,r%d,r%d\n", |
| 2033 | flag_Rc ? "." : "", Ra_addr, Rs_addr, Rb_addr); |
| 2034 | assign( Ra, unop(Iop_Not32, binop(Iop_Xor32, |
| 2035 | mkexpr(Rs), mkexpr(Rb))) ); |
| 2036 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 2037 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2038 | case 0x3BA: // extsb (Extend Sign Byte, PPC32 p397 |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2039 | if (Rb_addr!=0) { |
| 2040 | vex_printf("dis_int_logic(PPC32)(extsb,Rb_addr)\n"); |
| 2041 | return False; |
| 2042 | } |
| 2043 | DIP("extsb%s r%d,r%d\n", |
| 2044 | flag_Rc ? "." : "", Ra_addr, Rs_addr); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2045 | assign( Ra, unop(Iop_8Sto32, unop(Iop_32to8, mkexpr(Rs))) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2046 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 2047 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2048 | case 0x39A: // extsh (Extend Sign Half Word, PPC32 p398) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2049 | if (Rb_addr!=0) { |
| 2050 | vex_printf("dis_int_logic(PPC32)(extsh,Rb_addr)\n"); |
| 2051 | return False; |
| 2052 | } |
| 2053 | DIP("extsh%s r%d,r%d\n", |
| 2054 | flag_Rc ? "." : "", Ra_addr, Rs_addr); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2055 | assign( Ra, unop(Iop_16Sto32, unop(Iop_32to16, mkexpr(Rs))) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2056 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 2057 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2058 | case 0x1DC: // nand (NAND, PPC32 p492) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2059 | DIP("nand%s r%d,r%d,r%d\n", |
| 2060 | flag_Rc ? "." : "", Ra_addr, Rs_addr, Rb_addr); |
| 2061 | assign( Ra, unop(Iop_Not32, |
| 2062 | binop(Iop_And32, mkexpr(Rs), mkexpr(Rb))) ); |
| 2063 | break; |
| 2064 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2065 | case 0x07C: // nor (NOR, PPC32 p494) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2066 | DIP("nor%s r%d,r%d,r%d\n", |
| 2067 | flag_Rc ? "." : "", Ra_addr, Rs_addr, Rb_addr); |
| 2068 | assign( Ra, unop(Iop_Not32, |
| 2069 | binop(Iop_Or32, mkexpr(Rs), mkexpr(Rb))) ); |
| 2070 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 2071 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2072 | case 0x1BC: // or (OR, PPC32 p495) |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2073 | if ((!flag_Rc) && Rs_addr == Rb_addr) { |
| 2074 | DIP("mr r%d,r%d\n", Ra_addr, Rs_addr); |
| 2075 | assign( Ra, mkexpr(Rs) ); |
| 2076 | } else { |
| 2077 | DIP("or%s r%d,r%d,r%d\n", |
| 2078 | flag_Rc ? "." : "", Ra_addr, Rs_addr, Rb_addr); |
| 2079 | assign( Ra, binop(Iop_Or32, mkexpr(Rs), mkexpr(Rb)) ); |
| 2080 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2081 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 2082 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2083 | case 0x19C: // orc (OR with Complement, PPC32 p496) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2084 | DIP("orc%s r%d,r%d,r%d\n", |
| 2085 | flag_Rc ? "." : "", Ra_addr, Rs_addr, Rb_addr); |
| 2086 | assign( Ra, binop(Iop_Or32, mkexpr(Rs), |
| 2087 | unop(Iop_Not32, mkexpr(Rb))) ); |
| 2088 | break; |
| 2089 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2090 | case 0x13C: // xor (XOR, PPC32 p549) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2091 | DIP("xor%s r%d,r%d,r%d\n", |
| 2092 | flag_Rc ? "." : "", Ra_addr, Rs_addr, Rb_addr); |
| 2093 | assign( Ra, binop(Iop_Xor32, mkexpr(Rs), mkexpr(Rb)) ); |
| 2094 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 2095 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2096 | default: |
| 2097 | vex_printf("dis_int_logic(PPC32)(opc2)\n"); |
| 2098 | return False; |
| 2099 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2100 | break; |
| 2101 | |
| 2102 | default: |
| 2103 | vex_printf("dis_int_logic(PPC32)(opc1)\n"); |
| 2104 | return False; |
| 2105 | } |
cerion | 70e2412 | 2005-03-16 00:27:37 +0000 | [diff] [blame] | 2106 | |
| 2107 | putIReg( Ra_addr, mkexpr(Ra) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2108 | if (do_rc && flag_Rc) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 2109 | set_CR0( mkexpr(Ra) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2110 | } |
| 2111 | return True; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2112 | } |
| 2113 | |
| 2114 | |
| 2115 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 2116 | /* |
| 2117 | Integer Rotate Instructions |
| 2118 | */ |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2119 | static Bool dis_int_rot ( UInt theInstr ) |
| 2120 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2121 | /* M-Form */ |
| 2122 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 2123 | UChar Rs_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 2124 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 2125 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 2126 | UChar sh_imm = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 2127 | UChar MaskBegin = toUChar((theInstr >> 6) & 0x1F); /* theInstr[6:10] */ |
| 2128 | UChar MaskEnd = toUChar((theInstr >> 1) & 0x1F); /* theInstr[1:5] */ |
| 2129 | UChar flag_Rc = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 2130 | |
cerion | 239e2e4 | 2005-02-24 16:59:17 +0000 | [diff] [blame] | 2131 | UInt mask = MASK(31-MaskEnd, 31-MaskBegin); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2132 | IRTemp Rs = newTemp(Ity_I32); |
| 2133 | IRTemp Ra = newTemp(Ity_I32); |
| 2134 | IRTemp Rb = newTemp(Ity_I32); |
| 2135 | |
| 2136 | assign( Rs, getIReg(Rs_addr) ); |
| 2137 | assign( Rb, getIReg(Rb_addr) ); |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2138 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2139 | switch (opc1) { |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 2140 | case 0x14: |
| 2141 | // rlwimi (Rotate Left Word Immediate then Mask Insert, PPC32 p500) |
sewardj | db36c0f | 2005-07-03 00:05:31 +0000 | [diff] [blame] | 2142 | DIP("rlwimi%s r%d,r%d,%d,%d,%d\n", flag_Rc ? "." : "", |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2143 | Ra_addr, Rs_addr, sh_imm, MaskBegin, MaskEnd); |
| 2144 | // Ra = (ROTL(Rs, Imm) & mask) | (Ra & ~mask); |
| 2145 | assign( Ra, binop(Iop_Or32, |
| 2146 | binop(Iop_And32, mkU32(mask), |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 2147 | ROTL32(mkexpr(Rs), mkU32(sh_imm))), |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2148 | binop(Iop_And32, getIReg(Ra_addr), mkU32(~mask))) ); |
| 2149 | break; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2150 | |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 2151 | case 0x15: |
| 2152 | // rlwinm (Rotate Left Word Immediate then AND with Mask, PPC32 p501) |
sewardj | db36c0f | 2005-07-03 00:05:31 +0000 | [diff] [blame] | 2153 | DIP("rlwinm%s r%d,r%d,%d,%d,%d\n", flag_Rc ? "." : "", |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2154 | Ra_addr, Rs_addr, sh_imm, MaskBegin, MaskEnd); |
| 2155 | // Ra = ROTL(Rs, Imm) & mask |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 2156 | assign( Ra, binop(Iop_And32, ROTL32(mkexpr(Rs), mkU32(sh_imm)), |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2157 | mkU32(mask)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2158 | break; |
cerion | 45b70ff | 2005-01-31 17:03:25 +0000 | [diff] [blame] | 2159 | |
sewardj | c965953 | 2005-07-21 21:33:57 +0000 | [diff] [blame] | 2160 | case 0x17: |
| 2161 | // rlwnm (Rotate Left Word then AND with Mask, PPC32 p503 |
| 2162 | DIP("rlwnm%s r%d,r%d,r%d,%d,%d\n", flag_Rc ? "." : "", |
| 2163 | Ra_addr, Rs_addr, Rb_addr, MaskBegin, MaskEnd); |
| 2164 | // Ra = ROTL(Rs, Rb[0-4]) & mask |
| 2165 | // note, ROTL32 does the masking, so we don't do it here |
| 2166 | assign( Ra, binop(Iop_And32, ROTL32(mkexpr(Rs), mkexpr(Rb)), |
| 2167 | mkU32(mask)) ); |
| 2168 | break; |
cerion | 45b70ff | 2005-01-31 17:03:25 +0000 | [diff] [blame] | 2169 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2170 | default: |
| 2171 | vex_printf("dis_int_rot(PPC32)(opc1)\n"); |
| 2172 | return False; |
| 2173 | } |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2174 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2175 | putIReg( Ra_addr, mkexpr(Ra) ); |
| 2176 | if (flag_Rc) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 2177 | set_CR0( mkexpr(Ra) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2178 | } |
| 2179 | return True; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2180 | } |
| 2181 | |
| 2182 | |
| 2183 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 2184 | /* |
| 2185 | Integer Load Instructions |
| 2186 | */ |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2187 | static Bool dis_int_load ( UInt theInstr ) |
| 2188 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2189 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 2190 | UChar Rd_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 2191 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 2192 | |
| 2193 | /* D-Form */ |
| 2194 | UInt d_imm = (theInstr >> 0) & 0xFFFF; /* theInstr[0:15] */ |
| 2195 | |
| 2196 | /* X-Form */ |
| 2197 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 2198 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 2199 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 2200 | |
| 2201 | UInt exts_d_imm = extend_s_16to32(d_imm); |
| 2202 | |
| 2203 | IRTemp Ra_or_0 = newTemp(Ity_I32); |
| 2204 | IRTemp EA_imm = newTemp(Ity_I32); |
| 2205 | IRTemp EA_reg = newTemp(Ity_I32); |
| 2206 | IRTemp Ra = newTemp(Ity_I32); |
| 2207 | IRTemp Rb = newTemp(Ity_I32); |
| 2208 | |
| 2209 | assign( Ra, getIReg(Ra_addr) ); |
| 2210 | assign( Rb, getIReg(Rb_addr) ); |
| 2211 | |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 2212 | assign( Ra_or_0, ea_rA_or_zero(Ra_addr)); |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2213 | |
cerion | d05ee44 | 2005-02-16 18:05:16 +0000 | [diff] [blame] | 2214 | assign( EA_imm, binop(Iop_Add32, mkexpr(Ra_or_0), mkU32(exts_d_imm)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2215 | |
| 2216 | switch (opc1) { |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2217 | case 0x22: // lbz (Load B & Zero, PPC32 p433) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2218 | DIP("lbz r%d,%d(r%d)\n", Rd_addr, (Int)exts_d_imm, Ra_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2219 | putIReg( Rd_addr, unop(Iop_8Uto32, |
| 2220 | loadBE(Ity_I8, mkexpr(EA_imm))) ); |
| 2221 | break; |
| 2222 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2223 | case 0x23: // lbzu (Load B & Zero with Update, PPC32 p434) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2224 | if (Ra_addr == 0 || Ra_addr == Rd_addr) { |
| 2225 | vex_printf("dis_int_load(PPC32)(lbzu,Ra_addr|Rd_addr)\n"); |
| 2226 | return False; |
| 2227 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2228 | DIP("lbzu r%d,%d(r%d)\n", Rd_addr, (Int)exts_d_imm, Ra_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2229 | putIReg( Rd_addr, unop(Iop_8Uto32, |
| 2230 | loadBE(Ity_I8, mkexpr(EA_imm))) ); |
| 2231 | putIReg( Ra_addr, mkexpr(EA_imm) ); |
| 2232 | break; |
| 2233 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2234 | case 0x2A: // lha (Load HW Algebraic, PPC32 p445) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2235 | DIP("lha r%d,%d(r%d)\n", Rd_addr, (Int)exts_d_imm, Ra_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2236 | putIReg( Rd_addr, unop(Iop_16Sto32, |
| 2237 | loadBE(Ity_I16, mkexpr(EA_imm))) ); |
| 2238 | break; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2239 | |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 2240 | case 0x2B: // lhau (Load HW Algebraic with Update, PPC32 p446) |
| 2241 | if (Ra_addr == 0 || Ra_addr == Rd_addr) { |
| 2242 | vex_printf("dis_int_load(PPC32)(lhau,Ra_addr|Rd_addr)\n"); |
| 2243 | return False; |
| 2244 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2245 | DIP("lhau r%d,%d(r%d)\n", Rd_addr, (Int)exts_d_imm, Ra_addr); |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 2246 | putIReg( Rd_addr, unop(Iop_16Sto32, |
| 2247 | loadBE(Ity_I16, mkexpr(EA_imm))) ); |
| 2248 | putIReg( Ra_addr, mkexpr(EA_imm) ); |
| 2249 | break; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2250 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2251 | case 0x28: // lhz (Load HW & Zero, PPC32 p450) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2252 | DIP("lhz r%d,%d(r%d)\n", Rd_addr, (Int)exts_d_imm, Ra_addr); |
cerion | e67534c | 2005-02-25 20:47:36 +0000 | [diff] [blame] | 2253 | putIReg( Rd_addr, unop(Iop_16Uto32, |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2254 | loadBE(Ity_I16, mkexpr(EA_imm))) ); |
| 2255 | break; |
| 2256 | |
sewardj | 0e2cc67 | 2005-07-29 21:58:51 +0000 | [diff] [blame] | 2257 | case 0x29: // lhzu (Load HW & and Zero with Update, PPC32 p451) |
| 2258 | if (Ra_addr == 0 || Ra_addr == Rd_addr) { |
| 2259 | vex_printf("dis_int_load(PPC32)(lhzu,Ra_addr|Rd_addr)\n"); |
| 2260 | return False; |
| 2261 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2262 | DIP("lhzu r%d,%d(r%d)\n", Rd_addr, (Int)exts_d_imm, Ra_addr); |
sewardj | 0e2cc67 | 2005-07-29 21:58:51 +0000 | [diff] [blame] | 2263 | putIReg( Rd_addr, unop(Iop_16Uto32, |
| 2264 | loadBE(Ity_I16, mkexpr(EA_imm))) ); |
| 2265 | putIReg( Ra_addr, mkexpr(EA_imm) ); |
| 2266 | break; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2267 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2268 | case 0x20: // lwz (Load W & Zero, PPC32 p460) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2269 | DIP("lwz r%d,%d(r%d)\n", Rd_addr, (Int)exts_d_imm, Ra_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2270 | putIReg( Rd_addr, loadBE(Ity_I32, mkexpr(EA_imm)) ); |
| 2271 | break; |
| 2272 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2273 | case 0x21: // lwzu (Load W & Zero with Update, PPC32 p461)) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2274 | if (Ra_addr == 0 || Ra_addr == Rd_addr) { |
| 2275 | vex_printf("dis_int_load(PPC32)(lwzu,Ra_addr|Rd_addr)\n"); |
| 2276 | return False; |
| 2277 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2278 | DIP("lwzu r%d,%d(r%d)\n", Rd_addr, (Int)exts_d_imm, Ra_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2279 | putIReg( Rd_addr, loadBE(Ity_I32, mkexpr(EA_imm)) ); |
| 2280 | putIReg( Ra_addr, mkexpr(EA_imm) ); |
| 2281 | break; |
| 2282 | |
| 2283 | /* X Form */ |
| 2284 | case 0x1F: |
| 2285 | if (b0 != 0) { |
| 2286 | vex_printf("dis_int_load(PPC32)(Ox1F,b0)\n"); |
| 2287 | return False; |
| 2288 | } |
cerion | 7c1dd1b | 2005-02-22 18:39:18 +0000 | [diff] [blame] | 2289 | assign( EA_reg, binop(Iop_Add32, mkexpr(Ra_or_0), mkexpr(Rb)) ); |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2290 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2291 | switch (opc2) { |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2292 | case 0x077: // lbzux (Load B & Zero with Update Indexed, PPC32 p435) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2293 | DIP("lbzux r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
| 2294 | if (Ra_addr == 0 || Ra_addr == Rd_addr) { |
| 2295 | vex_printf("dis_int_load(PPC32)(lwzux,Ra_addr|Rd_addr)\n"); |
| 2296 | return False; |
| 2297 | } |
| 2298 | putIReg( Rd_addr, unop(Iop_8Uto32, |
| 2299 | loadBE(Ity_I8, mkexpr(EA_reg))) ); |
| 2300 | putIReg( Ra_addr, mkexpr(EA_reg) ); |
| 2301 | break; |
| 2302 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2303 | case 0x057: // lbzx (Load B & Zero Indexed, PPC32 p436) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2304 | DIP("lbzx r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
| 2305 | putIReg( Rd_addr, unop(Iop_8Uto32, |
| 2306 | loadBE(Ity_I8, mkexpr(EA_reg))) ); |
| 2307 | break; |
| 2308 | |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 2309 | case 0x177: // lhaux (Load HW Algebraic with Update Indexed, PPC32 p447) |
| 2310 | if (Ra_addr == 0 || Ra_addr == Rd_addr) { |
| 2311 | vex_printf("dis_int_load(PPC32)(lhaux,Ra_addr|Rd_addr)\n"); |
| 2312 | return False; |
| 2313 | } |
| 2314 | DIP("lhaux r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
| 2315 | putIReg( Rd_addr, unop(Iop_16Sto32, |
| 2316 | loadBE(Ity_I16, mkexpr(EA_reg))) ); |
| 2317 | putIReg( Ra_addr, mkexpr(EA_reg) ); |
| 2318 | break; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2319 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2320 | case 0x157: // lhax (Load HW Algebraic Indexed, PPC32 p448) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2321 | DIP("lhax r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
| 2322 | putIReg( Rd_addr, unop(Iop_16Sto32, |
| 2323 | loadBE(Ity_I16, mkexpr(EA_reg))) ); |
| 2324 | break; |
| 2325 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2326 | case 0x137: // lhzux (Load HW & Zero with Update Indexed, PPC32 p452) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2327 | if (Ra_addr == 0 || Ra_addr == Rd_addr) { |
| 2328 | vex_printf("dis_int_load(PPC32)(lhzux,Ra_addr|Rd_addr)\n"); |
| 2329 | return False; |
| 2330 | } |
| 2331 | DIP("lhzux r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
cerion | e67534c | 2005-02-25 20:47:36 +0000 | [diff] [blame] | 2332 | putIReg( Rd_addr, unop(Iop_16Uto32, |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2333 | loadBE(Ity_I16, mkexpr(EA_reg))) ); |
| 2334 | putIReg( Ra_addr, mkexpr(EA_reg) ); |
| 2335 | break; |
| 2336 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2337 | case 0x117: // lhzx (Load HW & Zero Indexed, PPC32 p453) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2338 | DIP("lhzx r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
cerion | e67534c | 2005-02-25 20:47:36 +0000 | [diff] [blame] | 2339 | putIReg( Rd_addr, unop(Iop_16Uto32, |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2340 | loadBE(Ity_I16, mkexpr(EA_reg))) ); |
| 2341 | break; |
cerion | 44997f2 | 2005-01-31 18:45:59 +0000 | [diff] [blame] | 2342 | |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 2343 | case 0x037: // lwzux (Load W & Zero with Update Indexed, PPC32 p462) |
| 2344 | if (Ra_addr == 0 || Ra_addr == Rd_addr) { |
| 2345 | vex_printf("dis_int_load(PPC32)(lwzux,Ra_addr|Rd_addr)\n"); |
| 2346 | return False; |
| 2347 | } |
| 2348 | DIP("lwzux r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
| 2349 | putIReg( Rd_addr, loadBE(Ity_I32, mkexpr(EA_reg)) ); |
| 2350 | putIReg( Ra_addr, mkexpr(EA_reg) ); |
| 2351 | break; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2352 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2353 | case 0x017: // lwzx (Load W & Zero Indexed, PPC32 p463) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2354 | DIP("lwzx r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
| 2355 | putIReg( Rd_addr, loadBE(Ity_I32, mkexpr(EA_reg)) ); |
| 2356 | break; |
cerion | 44997f2 | 2005-01-31 18:45:59 +0000 | [diff] [blame] | 2357 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2358 | default: |
| 2359 | vex_printf("dis_int_load(PPC32)(opc2)\n"); |
| 2360 | return False; |
| 2361 | } |
| 2362 | break; |
| 2363 | default: |
| 2364 | vex_printf("dis_int_load(PPC32)(opc1)\n"); |
| 2365 | return False; |
| 2366 | } |
| 2367 | return True; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 2368 | } |
| 2369 | |
| 2370 | |
| 2371 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 2372 | /* |
| 2373 | Integer Store Instructions |
| 2374 | */ |
cerion | d23be4e | 2005-01-31 07:23:07 +0000 | [diff] [blame] | 2375 | static Bool dis_int_store ( UInt theInstr ) |
| 2376 | { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2377 | UInt opc1 = ifieldOPC(theInstr); /* theInstr[26:31] */ |
| 2378 | UInt Rs_addr = ifieldRD(theInstr); /* theInstr[21:25] */ |
| 2379 | UInt Ra_addr = ifieldRA(theInstr); /* theInstr[16:20] */ |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2380 | |
| 2381 | /* D-Form */ |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2382 | Int simm16 = ifieldSIMM16(theInstr); /* theInstr[0:15] */ |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2383 | |
| 2384 | /* X-Form */ |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2385 | UInt Rb_addr = ifieldRB(theInstr); /* theInstr[11:15] */ |
| 2386 | UInt opc2 = ifieldOPClo10(theInstr); /* theInstr[1:10] */ |
| 2387 | UInt b0 = ifieldBIT0(theInstr); /* theInstr[0] */ |
| 2388 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2389 | IRTemp Ra_or_0 = newTemp(Ity_I32); |
| 2390 | IRTemp Rb = newTemp(Ity_I32); |
| 2391 | IRTemp Rs = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2392 | IRTemp EA_imm = newTemp(Ity_I32); |
| 2393 | IRTemp EA_reg = newTemp(Ity_I32); |
| 2394 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2395 | assign( Rb, getIReg(Rb_addr) ); |
| 2396 | assign( Rs, getIReg(Rs_addr) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2397 | |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 2398 | assign( Ra_or_0, ea_rA_or_zero(Ra_addr) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2399 | assign( EA_imm, binop(Iop_Add32, mkexpr(Ra_or_0), mkU32(simm16)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2400 | |
| 2401 | switch (opc1) { |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 2402 | case 0x26: // stb (Store B, PPC32 p509) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2403 | DIP("stb r%u,%d(r%u)\n", Rs_addr, simm16, Ra_addr); |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 2404 | storeBE( mkexpr(EA_imm), unop(Iop_32to8, mkexpr(Rs)) ); |
| 2405 | break; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2406 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2407 | case 0x27: // stbu (Store B with Update, PPC32 p510) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2408 | if (Ra_addr == 0 ) { |
| 2409 | vex_printf("dis_int_store(PPC32)(stbu,Ra_addr)\n"); |
| 2410 | return False; |
| 2411 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2412 | DIP("stbu r%u,%d(r%u)\n", Rs_addr, simm16, Ra_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2413 | putIReg( Ra_addr, mkexpr(EA_imm) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2414 | storeBE( mkexpr(EA_imm), unop(Iop_32to8, mkexpr(Rs)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2415 | break; |
cerion | d23be4e | 2005-01-31 07:23:07 +0000 | [diff] [blame] | 2416 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2417 | case 0x2C: // sth (Store HW, PPC32 p522) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2418 | DIP("sth r%u,%d(r%u)\n", Rs_addr, simm16, Ra_addr); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2419 | storeBE( mkexpr(EA_imm), unop(Iop_32to16, mkexpr(Rs)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2420 | break; |
| 2421 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2422 | case 0x2D: // sthu (Store HW with Update, PPC32 p524) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2423 | if (Ra_addr == 0) { |
| 2424 | vex_printf("dis_int_store(PPC32)(sthu,Ra_addr)\n"); |
| 2425 | return False; |
| 2426 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2427 | DIP("sthu r%u,%d(r%u)\n", Rs_addr, simm16, Ra_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2428 | putIReg( Ra_addr, mkexpr(EA_imm) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2429 | storeBE( mkexpr(EA_imm), unop(Iop_32to16, mkexpr(Rs)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2430 | break; |
cerion | d23be4e | 2005-01-31 07:23:07 +0000 | [diff] [blame] | 2431 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2432 | case 0x24: // stw (Store W, PPC32 p530) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2433 | DIP("stw r%u,%d(r%u)\n", Rs_addr, simm16, Ra_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2434 | storeBE( mkexpr(EA_imm), mkexpr(Rs) ); |
| 2435 | break; |
cerion | d23be4e | 2005-01-31 07:23:07 +0000 | [diff] [blame] | 2436 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2437 | case 0x25: // stwu (Store W with Update, PPC32 p534) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2438 | if (Ra_addr == 0) { |
| 2439 | vex_printf("dis_int_store(PPC32)(stwu,Ra_addr)\n"); |
| 2440 | return False; |
| 2441 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2442 | DIP("stwu r%u,%d(r%u)\n", Rs_addr, simm16, Ra_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2443 | putIReg( Ra_addr, mkexpr(EA_imm) ); |
cerion | ed623db | 2005-06-20 12:42:04 +0000 | [diff] [blame] | 2444 | storeBE( mkexpr(EA_imm), mkexpr(Rs) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2445 | break; |
| 2446 | |
| 2447 | /* X Form */ |
| 2448 | case 0x1F: |
| 2449 | if (b0 != 0) { |
| 2450 | vex_printf("dis_int_store(PPC32)(0x1F,b0)\n"); |
| 2451 | return False; |
| 2452 | } |
cerion | 7c1dd1b | 2005-02-22 18:39:18 +0000 | [diff] [blame] | 2453 | assign( EA_reg, binop(Iop_Add32, mkexpr(Ra_or_0), mkexpr(Rb)) ); |
cerion | 44997f2 | 2005-01-31 18:45:59 +0000 | [diff] [blame] | 2454 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2455 | switch (opc2) { |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2456 | case 0x0F7: // stbux (Store B with Update Indexed, PPC32 p511) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2457 | if (Ra_addr == 0) { |
| 2458 | vex_printf("dis_int_store(PPC32)(stbux,Ra_addr)\n"); |
| 2459 | return False; |
| 2460 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2461 | DIP("stbux r%u,r%u,r%u\n", Rs_addr, Ra_addr, Rb_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2462 | putIReg( Ra_addr, mkexpr(EA_reg) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2463 | storeBE( mkexpr(EA_reg), unop(Iop_32to8, mkexpr(Rs)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2464 | break; |
| 2465 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2466 | case 0x0D7: // stbx (Store B Indexed, PPC32 p512) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2467 | DIP("stbx r%u,r%u,r%u\n", Rs_addr, Ra_addr, Rb_addr); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2468 | storeBE( mkexpr(EA_reg), unop(Iop_32to8, mkexpr(Rs)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2469 | break; |
| 2470 | |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 2471 | case 0x1B7: // sthux (Store HW with Update Indexed, PPC32 p525) |
| 2472 | if (Ra_addr == 0) { |
| 2473 | vex_printf("dis_int_store(PPC32)(sthux,Ra_addr)\n"); |
| 2474 | return False; |
| 2475 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2476 | DIP("sthux r%u,r%u,r%u\n", Rs_addr, Ra_addr, Rb_addr); |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 2477 | putIReg( Ra_addr, mkexpr(EA_reg) ); |
| 2478 | storeBE( mkexpr(EA_reg), unop(Iop_32to16, mkexpr(Rs)) ); |
| 2479 | break; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2480 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2481 | case 0x197: // sthx (Store HW Indexed, PPC32 p526) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2482 | DIP("sthx r%u,r%u,r%u\n", Rs_addr, Ra_addr, Rb_addr); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2483 | storeBE( mkexpr(EA_reg), unop(Iop_32to16, mkexpr(Rs)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2484 | break; |
| 2485 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2486 | case 0x0B7: // stwux (Store W with Update Indexed, PPC32 p535) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2487 | if (Ra_addr == 0) { |
| 2488 | vex_printf("dis_int_store(PPC32)(stwux,Ra_addr)\n"); |
| 2489 | return False; |
| 2490 | } |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2491 | DIP("stwux r%u,r%u,r%u\n", Rs_addr, Ra_addr, Rb_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2492 | putIReg( Ra_addr, mkexpr(EA_reg) ); |
cerion | ed623db | 2005-06-20 12:42:04 +0000 | [diff] [blame] | 2493 | storeBE( mkexpr(EA_reg), mkexpr(Rs) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2494 | break; |
cerion | 44997f2 | 2005-01-31 18:45:59 +0000 | [diff] [blame] | 2495 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2496 | case 0x097: // stwx (Store W Indexed, PPC32 p536) |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2497 | DIP("stwx r%u,r%u,r%u\n", Rs_addr, Ra_addr, Rb_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2498 | storeBE( mkexpr(EA_reg), mkexpr(Rs) ); |
| 2499 | break; |
| 2500 | |
| 2501 | default: |
| 2502 | vex_printf("dis_int_store(PPC32)(opc2)\n"); |
| 2503 | return False; |
| 2504 | } |
| 2505 | break; |
| 2506 | default: |
| 2507 | vex_printf("dis_int_store(PPC32)(opc1)\n"); |
| 2508 | return False; |
| 2509 | } |
| 2510 | return True; |
cerion | d23be4e | 2005-01-31 07:23:07 +0000 | [diff] [blame] | 2511 | } |
| 2512 | |
| 2513 | |
| 2514 | |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 2515 | /* |
| 2516 | Integer Load/Store Multiple Instructions |
| 2517 | */ |
| 2518 | static Bool dis_int_ldst_mult ( UInt theInstr ) |
| 2519 | { |
| 2520 | /* D-Form */ |
| 2521 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 2522 | UChar Rd_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 2523 | UChar Rs_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 2524 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 2525 | UInt d_imm = (theInstr >> 0) & 0xFFFF; /* theInstr[0:15] */ |
| 2526 | |
| 2527 | UInt exts_d_imm = extend_s_16to32(d_imm); |
| 2528 | UInt reg_idx = 0; |
| 2529 | UInt offset = 0; |
| 2530 | |
| 2531 | IRTemp Ra = newTemp(Ity_I32); |
| 2532 | IRTemp EA = newTemp(Ity_I32); |
| 2533 | |
| 2534 | IRExpr* irx_addr; |
| 2535 | |
| 2536 | if (Ra_addr == 0) { |
| 2537 | assign( EA, binop(Iop_Add32, mkU32(0), mkU32(exts_d_imm)) ); |
| 2538 | } else { |
| 2539 | assign( Ra, getIReg(Ra_addr) ); |
| 2540 | assign( EA, binop(Iop_Add32, mkexpr(Ra), mkU32(exts_d_imm)) ); |
| 2541 | } |
| 2542 | |
| 2543 | switch (opc1) { |
| 2544 | case 0x2E: // lmw (Load Multiple Word, PPC32 p454) |
| 2545 | if (Ra_addr >= Rd_addr) { |
| 2546 | vex_printf("dis_int_ldst_mult(PPC32)(lmw,Ra_addr)\n"); |
| 2547 | return False; |
| 2548 | } |
| 2549 | DIP("lmw r%d,%d(r%d)\n", Rd_addr, (Int)d_imm, Ra_addr); |
| 2550 | for (reg_idx = Rd_addr; reg_idx <= 31; reg_idx++) { |
| 2551 | irx_addr = binop(Iop_Add32, mkexpr(EA), mkU32(offset)); |
| 2552 | putIReg( reg_idx, loadBE(Ity_I32, irx_addr ) ); |
| 2553 | offset += 4; |
| 2554 | } |
| 2555 | break; |
| 2556 | |
| 2557 | case 0x2F: // stmw (Store Multiple Word, PPC32 p527) |
| 2558 | DIP("stmw r%d,%d(r%d)\n", Rs_addr, (Int)d_imm, Ra_addr); |
| 2559 | for (reg_idx = Rs_addr; reg_idx <= 31; reg_idx++) { |
| 2560 | irx_addr = binop(Iop_Add32, mkexpr(EA), mkU32(offset)); |
| 2561 | storeBE( irx_addr, getIReg(reg_idx) ); |
| 2562 | offset += 4; |
| 2563 | } |
| 2564 | break; |
| 2565 | |
| 2566 | default: |
| 2567 | vex_printf("dis_int_ldst_mult(PPC32)(opc1)\n"); |
| 2568 | return False; |
| 2569 | } |
| 2570 | return True; |
| 2571 | } |
| 2572 | |
| 2573 | |
| 2574 | |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 2575 | /* |
| 2576 | Integer Load/Store String Instructions |
| 2577 | */ |
| 2578 | static |
| 2579 | void generate_lsw_sequence ( IRTemp tNBytes, // # bytes, :: Ity_I32 |
| 2580 | IRTemp EA, // EA |
| 2581 | Int rD, // first dst register |
| 2582 | Int maxBytes, // 32 or 128 |
| 2583 | Addr32 NIA ) // where next? |
| 2584 | { |
| 2585 | Int i, shift = 24; |
| 2586 | IRExpr* e_nbytes = mkexpr(tNBytes); |
| 2587 | IRExpr* e_EA = mkexpr(EA); |
| 2588 | |
sewardj | 5876fa1 | 2005-09-09 09:35:29 +0000 | [diff] [blame] | 2589 | vassert(rD >= 0 && rD < 32); |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 2590 | rD--; if (rD < 0) rD = 31; |
| 2591 | |
| 2592 | for (i = 0; i < maxBytes; i++) { |
| 2593 | |
| 2594 | /* if (nBytes < (i+1)) goto NIA; */ |
| 2595 | stmt( IRStmt_Exit( binop(Iop_CmpLT32U, e_nbytes, mkU32(i+1)), |
| 2596 | Ijk_Boring, |
| 2597 | IRConst_U32(NIA)) ); |
| 2598 | /* when crossing into a new dest register, set it to zero. */ |
| 2599 | if ((i % 4) == 0) { |
| 2600 | rD++; if (rD == 32) rD = 0; |
| 2601 | putIReg(rD, mkU32(0)); |
| 2602 | shift = 24; |
| 2603 | } |
| 2604 | /* rD |= (8Uto32(*(EA+i))) << shift */ |
| 2605 | vassert(shift == 0 || shift == 8 || shift == 16 || shift == 24); |
| 2606 | putIReg( |
| 2607 | rD, |
| 2608 | binop(Iop_Or32, |
| 2609 | getIReg(rD), |
| 2610 | binop(Iop_Shl32, |
| 2611 | unop(Iop_8Uto32, |
| 2612 | loadBE(Ity_I8, |
| 2613 | binop(Iop_Add32, e_EA, mkU32(i)))), |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2614 | mkU8(toUChar(shift))) |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 2615 | )); |
| 2616 | shift -= 8; |
| 2617 | } |
| 2618 | } |
| 2619 | |
sewardj | 5876fa1 | 2005-09-09 09:35:29 +0000 | [diff] [blame] | 2620 | static |
| 2621 | void generate_stsw_sequence ( IRTemp tNBytes, // # bytes, :: Ity_I32 |
| 2622 | IRTemp EA, // EA |
| 2623 | Int rS, // first src register |
| 2624 | Int maxBytes, // 32 or 128 |
| 2625 | Addr32 NIA ) // where next? |
| 2626 | { |
| 2627 | Int i, shift = 24; |
| 2628 | IRExpr* e_nbytes = mkexpr(tNBytes); |
| 2629 | IRExpr* e_EA = mkexpr(EA); |
| 2630 | |
| 2631 | vassert(rS >= 0 && rS < 32); |
| 2632 | rS--; if (rS < 0) rS = 31; |
| 2633 | |
| 2634 | for (i = 0; i < maxBytes; i++) { |
| 2635 | /* if (nBytes < (i+1)) goto NIA; */ |
| 2636 | stmt( IRStmt_Exit( binop(Iop_CmpLT32U, e_nbytes, mkU32(i+1)), |
| 2637 | Ijk_Boring, |
| 2638 | IRConst_U32(NIA)) ); |
| 2639 | /* check for crossing into a new src register. */ |
| 2640 | if ((i % 4) == 0) { |
| 2641 | rS++; if (rS == 32) rS = 0; |
| 2642 | shift = 24; |
| 2643 | } |
| 2644 | /* *(EA+i) = 32to8(rS >> shift) */ |
| 2645 | vassert(shift == 0 || shift == 8 || shift == 16 || shift == 24); |
| 2646 | storeBE( |
| 2647 | binop(Iop_Add32, e_EA, mkU32(i)), |
| 2648 | unop(Iop_32to8, |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 2649 | binop(Iop_Shr32, getIReg(rS), mkU8(toUChar(shift)))) |
sewardj | 5876fa1 | 2005-09-09 09:35:29 +0000 | [diff] [blame] | 2650 | ); |
| 2651 | shift -= 8; |
| 2652 | } |
| 2653 | } |
| 2654 | |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 2655 | |
| 2656 | static Bool dis_int_ldst_str ( UInt theInstr, /*OUT*/Bool* stopHere ) |
| 2657 | { |
| 2658 | /* X-Form */ |
| 2659 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 2660 | UChar Rd_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 2661 | UChar Rs_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 2662 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 2663 | UChar NumBytes = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 2664 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 2665 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 2666 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 2667 | |
sewardj | 0f2c540 | 2005-09-09 09:50:34 +0000 | [diff] [blame] | 2668 | IRTemp t_EA = newTemp(Ity_I32); |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 2669 | IRTemp t_nbytes = IRTemp_INVALID; |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 2670 | |
| 2671 | *stopHere = False; |
| 2672 | |
| 2673 | if (opc1 != 0x1F || b0 != 0) { |
| 2674 | vex_printf("dis_int_ldst_str(PPC32)(opc1)\n"); |
| 2675 | return False; |
| 2676 | } |
| 2677 | |
| 2678 | switch (opc2) { |
| 2679 | case 0x255: // lswi (Load String Word Immediate, PPC32 p455) |
| 2680 | /* NB: does not reject the case where RA is in the range of |
| 2681 | registers to be loaded. It should. */ |
| 2682 | DIP("lswi r%d,r%d,%d\n", Rd_addr, Ra_addr, NumBytes); |
| 2683 | assign( t_EA, ea_rA_or_zero(Ra_addr) ); |
| 2684 | if (NumBytes == 8) { |
| 2685 | /* Special case hack */ |
| 2686 | /* Rd = Mem[EA]; (Rd+1)%32 = Mem[EA+4] */ |
| 2687 | putIReg( Rd_addr, |
| 2688 | loadBE(Ity_I32, mkexpr(t_EA)) ); |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 2689 | putIReg( (Rd_addr+1) % 32, |
| 2690 | loadBE(Ity_I32, binop(Iop_Add32, mkexpr(t_EA), mkU32(4))) ); |
| 2691 | } else { |
| 2692 | t_nbytes = newTemp(Ity_I32); |
| 2693 | assign( t_nbytes, mkU32(NumBytes==0 ? 32 : NumBytes) ); |
| 2694 | generate_lsw_sequence( t_nbytes, t_EA, Rd_addr, |
| 2695 | 32, guest_CIA_curr_instr+4 ); |
| 2696 | *stopHere = True; |
| 2697 | } |
| 2698 | return True; |
| 2699 | |
| 2700 | case 0x215: // lswx (Load String Word Indexed, PPC32 p456) |
| 2701 | /* NB: does not reject the case where RA is in the range of |
| 2702 | registers to be loaded. It should. Although considering |
| 2703 | that that can only be detected at run time, it's not easy to |
| 2704 | do so. */ |
| 2705 | if (Rd_addr == Ra_addr || Rd_addr == Rb_addr) |
| 2706 | return False; |
| 2707 | if (Rd_addr == 0 && Ra_addr == 0) |
| 2708 | return False; |
| 2709 | DIP("lswx r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
| 2710 | t_nbytes = newTemp(Ity_I32); |
| 2711 | assign( t_EA, ea_standard(Ra_addr,Rb_addr) ); |
| 2712 | assign( t_nbytes, unop( Iop_8Uto32, |
| 2713 | IRExpr_Get( OFFB_XER_BC, Ity_I8 ))); |
| 2714 | generate_lsw_sequence( t_nbytes, t_EA, Rd_addr, |
| 2715 | 128, guest_CIA_curr_instr+4 ); |
| 2716 | *stopHere = True; |
| 2717 | return True; |
| 2718 | |
sewardj | 5876fa1 | 2005-09-09 09:35:29 +0000 | [diff] [blame] | 2719 | case 0x2D5: // stswi (Store String Word Immediate, PPC32 p528) |
| 2720 | DIP("stswi r%d,r%d,%d\n", Rs_addr, Ra_addr, NumBytes); |
| 2721 | assign( t_EA, ea_rA_or_zero(Ra_addr) ); |
| 2722 | if (NumBytes == 8) { |
| 2723 | /* Special case hack */ |
| 2724 | /* Mem[EA] = Rd; Mem[EA+4] = (Rd+1)%32 */ |
| 2725 | storeBE( mkexpr(t_EA), |
| 2726 | getIReg(Rd_addr) ); |
| 2727 | storeBE( binop(Iop_Add32, mkexpr(t_EA), mkU32(4)), |
| 2728 | getIReg((Rd_addr+1) % 32) ); |
| 2729 | } else { |
| 2730 | t_nbytes = newTemp(Ity_I32); |
| 2731 | assign( t_nbytes, mkU32(NumBytes==0 ? 32 : NumBytes) ); |
| 2732 | generate_stsw_sequence( t_nbytes, t_EA, Rd_addr, |
| 2733 | 32, guest_CIA_curr_instr+4 ); |
| 2734 | *stopHere = True; |
| 2735 | } |
| 2736 | return True; |
| 2737 | |
sewardj | 5876fa1 | 2005-09-09 09:35:29 +0000 | [diff] [blame] | 2738 | case 0x295: // stswx (Store String Word Indexed, PPC32 p529) |
| 2739 | DIP("stswx r%d,r%d,r%d\n", Rs_addr, Ra_addr, Rb_addr); |
| 2740 | t_nbytes = newTemp(Ity_I32); |
| 2741 | assign( t_EA, ea_standard(Ra_addr,Rb_addr) ); |
| 2742 | assign( t_nbytes, unop( Iop_8Uto32, |
| 2743 | IRExpr_Get( OFFB_XER_BC, Ity_I8 ))); |
| 2744 | generate_stsw_sequence( t_nbytes, t_EA, Rs_addr, |
| 2745 | 128, guest_CIA_curr_instr+4 ); |
| 2746 | *stopHere = True; |
| 2747 | return True; |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 2748 | |
| 2749 | default: |
| 2750 | vex_printf("dis_int_ldst_str(PPC32)(opc2)\n"); |
| 2751 | return False; |
| 2752 | } |
| 2753 | return True; |
| 2754 | } |
| 2755 | |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 2756 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2757 | /* ------------------------------------------------------------------ |
| 2758 | Integer Branch Instructions |
| 2759 | ------------------------------------------------------------------ */ |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 2760 | |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 2761 | /* |
| 2762 | Branch helper function |
| 2763 | ok = BO[2] | ((CTR[0] != 0) ^ BO[1]) |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2764 | Returns an I32 which is 0x00000000 if the ctr condition failed |
| 2765 | and 0xFFFFFFFF otherwise. |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 2766 | */ |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2767 | static IRExpr* /* :: Ity_I32 */ branch_ctr_ok( UInt BO ) |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 2768 | { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2769 | IRTemp ok = newTemp(Ity_I32); |
cerion | ed623db | 2005-06-20 12:42:04 +0000 | [diff] [blame] | 2770 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2771 | if ((BO >> 2) & 1) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2772 | assign( ok, mkU32(0xFFFFFFFF) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2773 | } else { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2774 | if ((BO >> 1) & 1) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2775 | assign( ok, unop( Iop_1Sto32, |
| 2776 | binop( Iop_CmpEQ32, |
| 2777 | getSPR( PPC32_SPR_CTR ), mkU32(0))) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2778 | } else { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2779 | assign( ok, unop( Iop_1Sto32, |
| 2780 | binop( Iop_CmpNE32, |
| 2781 | getSPR( PPC32_SPR_CTR ), mkU32(0))) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2782 | } |
| 2783 | } |
| 2784 | return mkexpr(ok); |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 2785 | } |
| 2786 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2787 | |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 2788 | /* |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2789 | Branch helper function cond_ok = BO[4] | (CR[BI] == BO[3]) |
| 2790 | Returns an I32 which is either 0 if the condition failed or |
| 2791 | some arbitrary nonzero value otherwise. */ |
| 2792 | |
| 2793 | static IRExpr* /* :: Ity_I32 */ branch_cond_ok( UInt BO, UInt BI ) |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 2794 | { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2795 | Int where; |
| 2796 | IRTemp res = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2797 | IRTemp cr_bi = newTemp(Ity_I32); |
| 2798 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2799 | if ((BO >> 4) & 1) { |
| 2800 | assign( res, mkU32(1) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2801 | } else { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2802 | // ok = (CR[BI] == BO[3]) Note, the following relies on |
| 2803 | // getCRbit_anywhere returning a value which |
| 2804 | // is either zero or has exactly 1 bit set. |
| 2805 | assign( cr_bi, getCRbit_anywhere( BI, &where ) ); |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2806 | |
| 2807 | if ((BO >> 3) & 1) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2808 | /* We can use cr_bi as-is. */ |
| 2809 | assign( res, mkexpr(cr_bi) ); |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2810 | } else { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2811 | /* We have to invert the sense of the information held in |
| 2812 | cr_bi. For that we need to know which bit |
| 2813 | getCRbit_somewhere regards as significant. */ |
| 2814 | assign( res, binop(Iop_Xor32, mkexpr(cr_bi), mkU32(1<<where)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2815 | } |
| 2816 | } |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2817 | return mkexpr(res); |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 2818 | } |
| 2819 | |
| 2820 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 2821 | /* |
| 2822 | Integer Branch Instructions |
| 2823 | */ |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 2824 | static Bool dis_branch ( UInt theInstr, DisResult* dres ) |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 2825 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2826 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 2827 | UChar BO = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 2828 | UChar BI = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 2829 | UInt BD = (theInstr >> 2) & 0x3FFF; /* theInstr[2:15] */ |
| 2830 | UChar b11to15 = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 2831 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 2832 | UInt LI_24 = (theInstr >> 2) & 0xFFFFFF; /* theInstr[2:25] */ |
| 2833 | UChar flag_AA = toUChar((theInstr >> 1) & 1); /* theInstr[1] */ |
| 2834 | UChar flag_LK = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 2835 | |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 2836 | Int exts_BD = (Int)extend_s_16to32(BD << 2); |
cerion | 6b30d85 | 2005-06-24 11:25:46 +0000 | [diff] [blame] | 2837 | Int exts_LI = (Int)extend_s_26to32(LI_24 << 2); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2838 | |
| 2839 | Addr32 nia = 0; |
| 2840 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2841 | // IRTemp ctr = newTemp(Ity_I32); |
| 2842 | // IRTemp lr = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2843 | IRTemp ir_nia = newTemp(Ity_I32); |
| 2844 | IRTemp do_branch = newTemp(Ity_I32); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2845 | IRTemp ctr_ok = newTemp(Ity_I32); |
| 2846 | IRTemp cond_ok = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2847 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2848 | // assign( ctr, getSPR( PPC32_SPR_CTR ) ); |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 2849 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2850 | /* Hack to pass through code that just wants to read the PC */ |
| 2851 | if (theInstr == 0x429F0005) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2852 | DIP("bcl 0x%x, 0x%x (a.k.a mr lr,cia+4)\n", BO, BI); |
| 2853 | putSPR( PPC32_SPR_LR, mkU32(guest_CIA_curr_instr + 4) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2854 | return True; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2855 | } |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 2856 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2857 | switch (opc1) { |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2858 | case 0x12: // b (Branch, PPC32 p360) |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 2859 | if (flag_AA) { |
| 2860 | nia = (UInt)exts_LI; |
| 2861 | } else { |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 2862 | nia = (UInt)((Int)guest_CIA_curr_instr + exts_LI); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2863 | } |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2864 | DIP("b%s%s 0x%x\n", flag_LK ? "l" : "", flag_AA ? "a" : "", nia); |
| 2865 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2866 | if (flag_LK) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2867 | putSPR( PPC32_SPR_LR, mkU32(guest_CIA_curr_instr + 4) ); |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2868 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2869 | irbb->jumpkind = flag_LK ? Ijk_Call : Ijk_Boring; |
| 2870 | irbb->next = mkU32(nia); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2871 | break; |
| 2872 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2873 | case 0x10: // bc (Branch Conditional, PPC32 p361) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2874 | DIP("bc%s%s 0x%x, 0x%x, 0x%x\n", |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 2875 | flag_LK ? "l" : "", flag_AA ? "a" : "", BO, BI, exts_BD); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2876 | |
| 2877 | if (!(BO & 0x4)) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2878 | putSPR( PPC32_SPR_CTR, |
| 2879 | binop(Iop_Sub32, getSPR( PPC32_SPR_CTR ), mkU32(1)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2880 | } |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2881 | |
| 2882 | /* This is a bit subtle. ctr_ok is either all 0s or all 1s. |
| 2883 | cond_ok is either zero or nonzero, since that's the cheapest |
| 2884 | way to compute it. Anding them together gives a value which |
| 2885 | is either zero or non zero and so that's what we must test |
| 2886 | for in the IRStmt_Exit. */ |
| 2887 | assign( ctr_ok, branch_ctr_ok( BO ) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2888 | assign( cond_ok, branch_cond_ok( BO, BI ) ); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2889 | assign( do_branch, |
| 2890 | binop(Iop_And32, mkexpr(cond_ok), mkexpr(ctr_ok)) ); |
| 2891 | |
cerion | 4561acb | 2005-02-21 14:07:48 +0000 | [diff] [blame] | 2892 | if (flag_AA) { |
| 2893 | nia = (UInt)exts_BD; |
| 2894 | } else { |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 2895 | nia = (UInt)((Int)guest_CIA_curr_instr + exts_BD); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2896 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2897 | if (flag_LK) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2898 | putSPR( PPC32_SPR_LR, mkU32(guest_CIA_curr_instr + 4) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2899 | } |
| 2900 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2901 | stmt( IRStmt_Exit( binop(Iop_CmpNE32, mkexpr(do_branch), mkU32(0)), |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2902 | flag_LK ? Ijk_Call : Ijk_Boring, |
| 2903 | IRConst_U32(nia) )); |
| 2904 | |
| 2905 | irbb->jumpkind = Ijk_Boring; |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 2906 | irbb->next = mkU32(guest_CIA_curr_instr + 4); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2907 | break; |
| 2908 | |
| 2909 | case 0x13: |
| 2910 | if (b11to15!=0) { |
| 2911 | vex_printf("dis_int_branch(PPC32)(0x13,b11to15)\n"); |
| 2912 | return False; |
| 2913 | } |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 2914 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2915 | switch (opc2) { |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2916 | case 0x210: // bcctr (Branch Cond. to Count Register, PPC32 p363) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2917 | if ((BO & 0x4) == 0) { // "decrement and test CTR" option invalid |
| 2918 | vex_printf("dis_int_branch(PPC32)(bcctr,BO)\n"); |
| 2919 | return False; |
| 2920 | } |
cerion | a31e8b5 | 2005-02-21 16:30:45 +0000 | [diff] [blame] | 2921 | DIP("bcctr%s 0x%x, 0x%x\n", flag_LK ? "l" : "", BO, BI); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2922 | |
| 2923 | assign( cond_ok, branch_cond_ok( BO, BI ) ); |
| 2924 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2925 | assign( ir_nia, |
| 2926 | binop(Iop_And32, mkU32(0xFFFFFFFC), |
| 2927 | getSPR( PPC32_SPR_CTR ) )); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2928 | |
| 2929 | if (flag_LK) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2930 | putSPR( PPC32_SPR_LR, mkU32(guest_CIA_curr_instr + 4) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2931 | } |
| 2932 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2933 | stmt( IRStmt_Exit( |
| 2934 | binop(Iop_CmpEQ32, mkexpr(cond_ok), mkU32(0)), |
| 2935 | Ijk_Boring, |
| 2936 | IRConst_U32(guest_CIA_curr_instr + 4) |
| 2937 | )); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2938 | |
| 2939 | irbb->jumpkind = flag_LK ? Ijk_Call : Ijk_Boring; |
| 2940 | irbb->next = mkexpr(ir_nia); |
| 2941 | break; |
| 2942 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 2943 | case 0x010: // bclr (Branch Cond. to Link Register, PPC32 p365) |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2944 | |
| 2945 | if ((BO & 0x14 /* 1z1zz */) == 0x14 && flag_LK == 0) { |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 2946 | DIP("blr\n"); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2947 | } else { |
| 2948 | DIP("bclr%s 0x%x, 0x%x\n", flag_LK ? "l" : "", BO, BI); |
| 2949 | } |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 2950 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2951 | if (!(BO & 0x4)) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2952 | putSPR( PPC32_SPR_CTR, |
| 2953 | binop(Iop_Sub32, getSPR( PPC32_SPR_CTR ), mkU32(1)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2954 | } |
| 2955 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2956 | /* See comments above for 'bc' about this */ |
| 2957 | assign( ctr_ok, branch_ctr_ok( BO ) ); |
| 2958 | assign( cond_ok, branch_cond_ok( BO, BI ) ); |
| 2959 | assign( do_branch, |
| 2960 | binop(Iop_And32, mkexpr(cond_ok), mkexpr(ctr_ok)) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2961 | |
| 2962 | assign( ir_nia, binop(Iop_And32, |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2963 | getSPR( PPC32_SPR_LR ), |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2964 | mkU32(0xFFFFFFFC)) ); |
| 2965 | if (flag_LK) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2966 | putSPR( PPC32_SPR_LR, mkU32(guest_CIA_curr_instr + 4) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2967 | } |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 2968 | |
| 2969 | stmt( IRStmt_Exit( |
| 2970 | binop(Iop_CmpEQ32, mkexpr(do_branch), mkU32(0)), |
| 2971 | Ijk_Boring, |
| 2972 | IRConst_U32(guest_CIA_curr_instr + 4) |
| 2973 | )); |
| 2974 | |
| 2975 | irbb->jumpkind = flag_LK ? Ijk_Call : Ijk_Ret; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2976 | irbb->next = mkexpr(ir_nia); |
| 2977 | break; |
| 2978 | |
| 2979 | default: |
| 2980 | vex_printf("dis_int_branch(PPC32)(opc2)\n"); |
| 2981 | return False; |
| 2982 | } |
| 2983 | break; |
| 2984 | default: |
| 2985 | vex_printf("dis_int_branch(PPC32)(opc1)\n"); |
| 2986 | return False; |
| 2987 | } |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 2988 | |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 2989 | dres->whatNext = Dis_StopHere; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 2990 | return True; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 2991 | } |
| 2992 | |
| 2993 | |
| 2994 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 2995 | /* |
| 2996 | Condition Register Logical Instructions |
| 2997 | */ |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 2998 | static Bool dis_cond_logic ( UInt theInstr ) |
| 2999 | { |
| 3000 | /* XL-Form */ |
| 3001 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 3002 | UChar crbD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 3003 | UChar crfD_addr = toUChar((theInstr >> 23) & 0x7); /* theInstr[23:25] */ |
| 3004 | UChar crbA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 3005 | UChar crfS_addr = toUChar((theInstr >> 18) & 0x7); /* theInstr[18:20] */ |
| 3006 | UChar crbB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 3007 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 3008 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 3009 | |
| 3010 | IRTemp crbD = newTemp(Ity_I32); |
| 3011 | IRTemp crbA = newTemp(Ity_I32); |
| 3012 | IRTemp crbB = newTemp(Ity_I32); |
| 3013 | |
| 3014 | if (opc1 != 19 || b0 != 0) { |
| 3015 | vex_printf("dis_cond_logic(PPC32)(opc1)\n"); |
| 3016 | return False; |
| 3017 | } |
| 3018 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3019 | if (opc2 == 0) { // mcrf (Move Cond Reg Field, PPC32 p464) |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 3020 | if (((crbD_addr & 0x3) != 0) || |
cerion | ed623db | 2005-06-20 12:42:04 +0000 | [diff] [blame] | 3021 | ((crbA_addr & 0x3) != 0) || (crbB_addr != 0)) |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 3022 | return False; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3023 | DIP("mcrf cr%d,cr%d\n", crfD_addr, crfS_addr); |
| 3024 | putCR0( crfD_addr, getCR0( crfS_addr) ); |
| 3025 | putCR321( crfD_addr, getCR321(crfS_addr) ); |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 3026 | } else { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3027 | assign( crbA, getCRbit(crbA_addr) ); |
cerion | a50fde5 | 2005-07-01 21:16:10 +0000 | [diff] [blame] | 3028 | if (crbA_addr == crbB_addr) |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3029 | crbB = crbA; |
cerion | a50fde5 | 2005-07-01 21:16:10 +0000 | [diff] [blame] | 3030 | else |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3031 | assign( crbB, getCRbit(crbB_addr) ); |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 3032 | |
| 3033 | switch (opc2) { |
sewardj | 7c2dc71 | 2005-09-08 17:33:27 +0000 | [diff] [blame] | 3034 | case 0x101: // crand (Cond Reg AND, PPC32 p372) |
| 3035 | DIP("crand crb%d,crb%d,crb%d\n", crbD_addr, crbA_addr, crbB_addr); |
| 3036 | assign( crbD, binop(Iop_And32, mkexpr(crbA), mkexpr(crbB)) ); |
| 3037 | break; |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 3038 | case 0x081: // crandc (Cond Reg AND w. Complement, PPC32 p373) |
| 3039 | DIP("crandc crb%d,crb%d,crb%d\n", crbD_addr, crbA_addr, crbB_addr); |
| 3040 | assign( crbD, binop(Iop_And32, |
| 3041 | mkexpr(crbA), |
| 3042 | unop(Iop_Not32, mkexpr(crbB))) ); |
| 3043 | break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 3044 | case 0x121: // creqv (Cond Reg Equivalent, PPC32 p374) |
| 3045 | DIP("creqv crb%d,crb%d,crb%d\n", crbD_addr, crbA_addr, crbB_addr); |
| 3046 | assign( crbD, unop(Iop_Not32, |
| 3047 | binop(Iop_Xor32, mkexpr(crbA), mkexpr(crbB))) ); |
| 3048 | break; |
sewardj | 7c2dc71 | 2005-09-08 17:33:27 +0000 | [diff] [blame] | 3049 | case 0x0E1: // crnand (Cond Reg NAND, PPC32 p375) |
| 3050 | DIP("crnand crb%d,crb%d,crb%d\n", crbD_addr, crbA_addr, crbB_addr); |
| 3051 | assign( crbD, unop(Iop_Not32, |
| 3052 | binop(Iop_And32, mkexpr(crbA), mkexpr(crbB))) ); |
| 3053 | break; |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3054 | case 0x021: // crnor (Cond Reg NOR, PPC32 p376) |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 3055 | DIP("crnor crb%d,crb%d,crb%d\n", crbD_addr, crbA_addr, crbB_addr); |
| 3056 | assign( crbD, unop(Iop_Not32, |
| 3057 | binop(Iop_Or32, mkexpr(crbA), mkexpr(crbB))) ); |
| 3058 | break; |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3059 | case 0x1C1: // cror (Cond Reg OR, PPC32 p377) |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 3060 | DIP("cror crb%d,crb%d,crb%d\n", crbD_addr, crbA_addr, crbB_addr); |
| 3061 | assign( crbD, binop(Iop_Or32, mkexpr(crbA), mkexpr(crbB)) ); |
| 3062 | break; |
sewardj | 7c2dc71 | 2005-09-08 17:33:27 +0000 | [diff] [blame] | 3063 | case 0x1A1: // crorc (Cond Reg OR w. Complement, PPC32 p378) |
| 3064 | DIP("crorc crb%d,crb%d,crb%d\n", crbD_addr, crbA_addr, crbB_addr); |
| 3065 | assign( crbD, binop(Iop_Or32, |
| 3066 | mkexpr(crbA), |
| 3067 | unop(Iop_Not32, mkexpr(crbB))) ); |
| 3068 | break; |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3069 | case 0x0C1: // crxor (Cond Reg XOR, PPC32 p379) |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 3070 | DIP("crxor crb%d,crb%d,crb%d\n", crbD_addr, crbA_addr, crbB_addr); |
| 3071 | assign( crbD, binop(Iop_Xor32, mkexpr(crbA), mkexpr(crbB)) ); |
| 3072 | break; |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 3073 | default: |
| 3074 | vex_printf("dis_cond_logic(PPC32)(opc2)\n"); |
| 3075 | return False; |
| 3076 | } |
| 3077 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3078 | putCRbit( crbD_addr, mkexpr(crbD) ); |
cerion | 3007c7f | 2005-02-23 23:13:29 +0000 | [diff] [blame] | 3079 | } |
| 3080 | return True; |
| 3081 | } |
| 3082 | |
| 3083 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3084 | /* |
| 3085 | System Linkage Instructions |
| 3086 | */ |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 3087 | static Bool dis_syslink ( UInt theInstr, DisResult* dres ) |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3088 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3089 | if (theInstr != 0x44000002) { |
| 3090 | vex_printf("dis_int_syslink(PPC32)(theInstr)\n"); |
| 3091 | return False; |
| 3092 | } |
cerion | e1d857b | 2005-02-04 18:29:05 +0000 | [diff] [blame] | 3093 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3094 | // sc (System Call, PPC32 p504) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3095 | DIP("sc\n"); |
| 3096 | |
| 3097 | /* It's important that all ArchRegs carry their up-to-date value |
| 3098 | at this point. So we declare an end-of-block here, which |
| 3099 | forces any TempRegs caching ArchRegs to be flushed. */ |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 3100 | irbb->next = mkU32( guest_CIA_curr_instr + 4 ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3101 | irbb->jumpkind = Ijk_Syscall; |
| 3102 | |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 3103 | dres->whatNext = Dis_StopHere; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3104 | return True; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3105 | } |
| 3106 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3107 | |
| 3108 | /* |
| 3109 | Memory Synchronization Instructions |
| 3110 | */ |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3111 | static Bool dis_memsync ( UInt theInstr ) |
| 3112 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3113 | /* X-Form, XL-Form */ |
| 3114 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 3115 | UInt b11to25 = (theInstr >> 11) & 0x7FFF; /* theInstr[11:25] */ |
| 3116 | UChar Rd_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 3117 | UChar Rs_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 3118 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 3119 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 3120 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 3121 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 3122 | |
| 3123 | IRTemp EA = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3124 | IRTemp Rs = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3125 | |
| 3126 | switch (opc1) { |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 3127 | /* XL-Form */ |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3128 | case 0x13: // isync (Instruction Synchronize, PPC32 p432) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3129 | if (opc2 != 0x096) { |
| 3130 | vex_printf("dis_int_memsync(PPC32)(0x13,opc2)\n"); |
| 3131 | return False; |
| 3132 | } |
| 3133 | if (b11to25 != 0 || b0 != 0) { |
| 3134 | vex_printf("dis_int_memsync(PPC32)(0x13,b11to25|b0)\n"); |
| 3135 | return False; |
| 3136 | } |
| 3137 | DIP("isync\n"); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3138 | stmt( IRStmt_MFence() ); |
| 3139 | break; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3140 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3141 | /* X-Form */ |
| 3142 | case 0x1F: |
| 3143 | switch (opc2) { |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 3144 | case 0x356: // eieio (Enforce In-Order Execution of I/O, PPC32 p394) |
| 3145 | if (b11to25 != 0 || b0 != 0) { |
| 3146 | vex_printf("dis_int_memsync(PPC32)(eiei0,b11to25|b0)\n"); |
| 3147 | return False; |
| 3148 | } |
| 3149 | DIP("eieio\n"); |
| 3150 | /* Insert a memory fence, just to be on the safe side. */ |
| 3151 | stmt( IRStmt_MFence() ); |
| 3152 | break; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3153 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3154 | case 0x014: // lwarx (Load Word and Reserve Indexed, PPC32 p458) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3155 | if (b0 != 0) { |
| 3156 | vex_printf("dis_int_memsync(PPC32)(lwarx,b0)\n"); |
| 3157 | return False; |
| 3158 | } |
| 3159 | DIP("lwarx r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 3160 | assign( EA, ea_standard(Ra_addr, Rb_addr) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3161 | putIReg( Rd_addr, loadBE(Ity_I32, mkexpr(EA)) ); |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 3162 | /* Take a reservation */ |
| 3163 | stmt( IRStmt_Put( OFFB_RESVN, mkexpr(EA) )); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3164 | break; |
| 3165 | |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 3166 | case 0x096: { |
| 3167 | // stwcx. (Store Word Conditional Indexed, PPC32 p532) |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 3168 | IRTemp resaddr = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3169 | if (b0 != 1) { |
| 3170 | vex_printf("dis_int_memsync(PPC32)(stwcx.,b0)\n"); |
| 3171 | return False; |
| 3172 | } |
| 3173 | DIP("stwcx. r%d,r%d,r%d\n", Rs_addr, Ra_addr, Rb_addr); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3174 | assign( Rs, getIReg(Rs_addr) ); |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 3175 | assign( EA, ea_standard(Ra_addr, Rb_addr) ); |
| 3176 | |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 3177 | /* First set up as if the reservation failed */ |
| 3178 | // Set CR0[LT GT EQ S0] = 0b000 || XER[SO] |
| 3179 | putCR321(0, mkU8(0<<1)); |
| 3180 | putCR0(0, getXER_SO()); |
| 3181 | |
| 3182 | /* Get the reservation address into a temporary, then |
| 3183 | clear it. */ |
| 3184 | assign( resaddr, IRExpr_Get(OFFB_RESVN, Ity_I32) ); |
| 3185 | stmt( IRStmt_Put( OFFB_RESVN, mkU32(0) )); |
| 3186 | |
| 3187 | /* Skip the rest if the reservation really did fail. */ |
| 3188 | stmt( IRStmt_Exit( |
| 3189 | binop(Iop_CmpNE32, mkexpr(resaddr), |
| 3190 | mkexpr(EA)), |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 3191 | Ijk_Boring, |
| 3192 | IRConst_U32(guest_CIA_curr_instr + 4) |
| 3193 | ) |
| 3194 | ); |
| 3195 | |
| 3196 | /* Success? Do the store */ |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3197 | storeBE( mkexpr(EA), mkexpr(Rs) ); |
| 3198 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3199 | // Set CR0[LT GT EQ S0] = 0b001 || XER[SO] |
| 3200 | putCR321(0, mkU8(1<<1)); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3201 | break; |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 3202 | } |
| 3203 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3204 | case 0x256: // sync (Synchronize, PPC32 p543) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3205 | if (b11to25 != 0 || b0 != 0) { |
| 3206 | vex_printf("dis_int_memsync(PPC32)(sync,b11to25|b0)\n"); |
| 3207 | return False; |
| 3208 | } |
| 3209 | DIP("sync\n"); |
| 3210 | /* Insert a memory fence. It's sometimes important that these |
| 3211 | are carried through to the generated code. */ |
| 3212 | stmt( IRStmt_MFence() ); |
| 3213 | break; |
| 3214 | |
| 3215 | default: |
| 3216 | vex_printf("dis_int_memsync(PPC32)(opc2)\n"); |
| 3217 | return False; |
| 3218 | } |
| 3219 | break; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3220 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3221 | default: |
| 3222 | vex_printf("dis_int_memsync(PPC32)(opc1)\n"); |
| 3223 | return False; |
| 3224 | } |
| 3225 | return True; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3226 | } |
| 3227 | |
| 3228 | |
| 3229 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3230 | /* |
| 3231 | Integer Shift Instructions |
| 3232 | */ |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 3233 | static Bool dis_int_shift ( UInt theInstr ) |
| 3234 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3235 | /* X-Form */ |
| 3236 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 3237 | UChar Rs_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 3238 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 3239 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 3240 | UChar sh_imm = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 3241 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 3242 | UChar flag_Rc = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 3243 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3244 | IRTemp sh_amt = newTemp(Ity_I8); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3245 | IRTemp rb_b5 = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3246 | IRTemp Rs = newTemp(Ity_I32); |
| 3247 | IRTemp Rs_sh = newTemp(Ity_I32); |
| 3248 | IRTemp Ra = newTemp(Ity_I32); |
| 3249 | IRTemp Rb = newTemp(Ity_I32); |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3250 | IRTemp sh_amt32 = newTemp(Ity_I32); |
| 3251 | IRTemp outofrange = newTemp(Ity_I8); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3252 | |
| 3253 | assign( Rs, getIReg(Rs_addr) ); |
| 3254 | assign( Rb, getIReg(Rb_addr) ); |
| 3255 | |
| 3256 | if (opc1 == 0x1F) { |
| 3257 | switch (opc2) { |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3258 | case 0x018: // slw (Shift Left Word, PPC32 p505) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3259 | DIP("slw%s r%d,r%d,r%d\n", flag_Rc ? "." : "", |
| 3260 | Ra_addr, Rs_addr, Rb_addr); |
| 3261 | assign( sh_amt, binop(Iop_And8, mkU8(0x1F), |
| 3262 | unop(Iop_32to8, mkexpr(Rb))) ); |
cerion | 3a589ea | 2005-03-14 16:30:09 +0000 | [diff] [blame] | 3263 | assign( Rs_sh, binop(Iop_Shl32, mkexpr(Rs), mkexpr(sh_amt)) ); |
| 3264 | assign( rb_b5, binop(Iop_And32, mkexpr(Rb), mkU32(1<<5)) ); |
| 3265 | assign( Ra, IRExpr_Mux0X( unop(Iop_32to8, mkexpr(rb_b5)), |
| 3266 | mkexpr(Rs_sh), mkU32(0) )); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3267 | break; |
| 3268 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3269 | case 0x318: // sraw (Shift Right Algebraic Word, PPC32 p506) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3270 | DIP("sraw%s r%d,r%d,r%d\n", flag_Rc ? "." : "", |
| 3271 | Ra_addr, Rs_addr, Rb_addr); |
| 3272 | |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3273 | /* JRS: my reading of the (poorly worded) PPC32 doc p506 is: |
| 3274 | amt = Rb & 63 |
| 3275 | Ra = Sar32( Rs, amt > 31 ? 31 : amt ) |
| 3276 | XER.CA = amt > 31 ? sign-of-Rs : (computation as per srawi) |
| 3277 | */ |
| 3278 | assign( sh_amt32, binop(Iop_And32, mkU32(0x3F), mkexpr(Rb)) ); |
| 3279 | assign( outofrange, |
| 3280 | unop( Iop_1Uto8, |
| 3281 | binop(Iop_CmpLT32U, mkU32(31), mkexpr(sh_amt32)) )); |
| 3282 | assign( Ra, |
| 3283 | binop( Iop_Sar32, |
| 3284 | mkexpr(Rs), |
| 3285 | unop( Iop_32to8, |
| 3286 | IRExpr_Mux0X( mkexpr(outofrange), |
| 3287 | mkexpr(sh_amt32), |
| 3288 | mkU32(31)) )) |
| 3289 | ); |
| 3290 | set_XER_CA( PPC32G_FLAG_OP_SRAW, |
| 3291 | mkexpr(Ra), mkexpr(Rs), mkexpr(sh_amt32), |
| 3292 | get_XER_CA() ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3293 | break; |
| 3294 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3295 | case 0x338: // srawi (Shift Right Algebraic Word Immediate, PPC32 p507) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3296 | DIP("srawi%s r%d,r%d,%d\n", flag_Rc ? "." : "", |
| 3297 | Ra_addr, Rs_addr, sh_imm); |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3298 | vassert(sh_imm < 32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3299 | assign( sh_amt, mkU8(sh_imm) ); |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3300 | assign( Ra, binop(Iop_Sar32, mkexpr(Rs), mkexpr(sh_amt)) ); |
| 3301 | set_XER_CA( PPC32G_FLAG_OP_SRAWI, |
| 3302 | mkexpr(Ra), mkexpr(Rs), mkU32(sh_imm), |
| 3303 | get_XER_CA() ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3304 | break; |
| 3305 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3306 | case 0x218: // srw (Shift Right Word, PPC32 p508) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3307 | DIP("srw%s r%d,r%d,r%d\n", flag_Rc ? "." : "", |
| 3308 | Ra_addr, Rs_addr, Rb_addr); |
| 3309 | assign( sh_amt, binop(Iop_And8, mkU8(0x1F), |
cerion | 3a589ea | 2005-03-14 16:30:09 +0000 | [diff] [blame] | 3310 | unop(Iop_32to8, mkexpr(Rb))) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3311 | assign( Rs_sh, binop(Iop_Shr32, mkexpr(Rs), mkexpr(sh_amt)) ); |
| 3312 | assign( rb_b5, binop(Iop_And32, mkexpr(Rb), mkU32(1<<5)) ); |
| 3313 | assign( Ra, IRExpr_Mux0X( unop(Iop_32to8, mkexpr(rb_b5)), |
cerion | 2ee871e | 2005-03-01 09:32:01 +0000 | [diff] [blame] | 3314 | mkexpr(Rs_sh), mkU32(0) )); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3315 | break; |
| 3316 | |
| 3317 | default: |
| 3318 | vex_printf("dis_int_shift(PPC32)(opc2)\n"); |
| 3319 | return False; |
| 3320 | } |
| 3321 | } else { |
| 3322 | vex_printf("dis_int_shift(PPC32)(opc1)\n"); |
| 3323 | return False; |
| 3324 | } |
cerion | 0d330c5 | 2005-02-28 16:43:16 +0000 | [diff] [blame] | 3325 | |
| 3326 | putIReg( Ra_addr, mkexpr(Ra) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3327 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3328 | if (flag_Rc) { |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3329 | set_CR0( mkexpr(Ra) ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3330 | } |
| 3331 | return True; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 3332 | } |
| 3333 | |
| 3334 | |
| 3335 | |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 3336 | /* |
| 3337 | Integer Load/Store Reverse Instructions |
| 3338 | */ |
sewardj | fb95797 | 2005-09-08 17:53:03 +0000 | [diff] [blame] | 3339 | static IRExpr* /* :: Ity_I32 */ gen_byterev32 ( IRTemp t ) |
| 3340 | { |
| 3341 | vassert(typeOfIRTemp(irbb->tyenv, t) == Ity_I32); |
| 3342 | return |
| 3343 | binop(Iop_Or32, |
| 3344 | binop(Iop_Shl32, mkexpr(t), mkU8(24)), |
| 3345 | binop(Iop_Or32, |
| 3346 | binop(Iop_And32, binop(Iop_Shl32, mkexpr(t), mkU8(8)), |
| 3347 | mkU32(0x00FF0000)), |
| 3348 | binop(Iop_Or32, |
| 3349 | binop(Iop_And32, binop(Iop_Shr32, mkexpr(t), mkU8(8)), |
| 3350 | mkU32(0x0000FF00)), |
| 3351 | binop(Iop_And32, binop(Iop_Shr32, mkexpr(t), mkU8(24)), |
| 3352 | mkU32(0x000000FF) ) |
| 3353 | ))); |
| 3354 | } |
| 3355 | |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 3356 | static Bool dis_int_ldst_rev ( UInt theInstr ) |
| 3357 | { |
| 3358 | /* X-Form */ |
| 3359 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 3360 | UChar Rd_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 3361 | UChar Rs_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 3362 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 3363 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 3364 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 3365 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 3366 | |
| 3367 | IRTemp EA = newTemp(Ity_I32); |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 3368 | IRTemp w1 = newTemp(Ity_I32); |
| 3369 | IRTemp w2 = newTemp(Ity_I32); |
| 3370 | |
| 3371 | if (opc1 != 0x1F || b0 != 0) { |
| 3372 | vex_printf("dis_int_ldst_rev(PPC32)(opc1|b0)\n"); |
| 3373 | return False; |
| 3374 | } |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 3375 | |
| 3376 | assign( EA, ea_standard(Ra_addr, Rb_addr) ); |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 3377 | |
| 3378 | switch (opc2) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3379 | //zz case 0x316: // lhbrx (Load Half Word Byte-Reverse Indexed, PPC32 p449) |
| 3380 | //zz vassert(0); |
| 3381 | //zz |
| 3382 | //zz DIP("lhbrx r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
| 3383 | //zz assign( byte0, loadBE(Ity_I8, mkexpr(EA)) ); |
| 3384 | //zz assign( byte1, loadBE(Ity_I8, binop(Iop_Add32, mkexpr(EA),mkU32(1))) ); |
| 3385 | //zz assign( Rd, binop(Iop_Or32, |
| 3386 | //zz binop(Iop_Shl32, mkexpr(byte1), mkU8(8)), |
| 3387 | //zz mkexpr(byte0)) ); |
| 3388 | //zz putIReg( Rd_addr, mkexpr(Rd)); |
| 3389 | //zz break; |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 3390 | |
sewardj | fb95797 | 2005-09-08 17:53:03 +0000 | [diff] [blame] | 3391 | case 0x216: // lwbrx (Load Word Byte-Reverse Indexed, PPC32 p459) |
| 3392 | DIP("lwbrx r%d,r%d,r%d\n", Rd_addr, Ra_addr, Rb_addr); |
| 3393 | assign( w1, loadBE(Ity_I32, mkexpr(EA)) ); |
| 3394 | assign( w2, gen_byterev32(w1) ); |
| 3395 | putIReg( Rd_addr, mkexpr(w2)); |
| 3396 | break; |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 3397 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3398 | //zz case 0x396: // sthbrx (Store Half Word Byte-Reverse Indexed, PPC32 p523) |
| 3399 | //zz vassert(0); |
| 3400 | //zz |
| 3401 | //zz DIP("sthbrx r%d,r%d,r%d\n", Rs_addr, Ra_addr, Rb_addr); |
| 3402 | //zz assign( Rs, getIReg(Rs_addr) ); |
| 3403 | //zz assign( byte0, binop(Iop_And32, mkexpr(Rs), mkU32(0x00FF)) ); |
| 3404 | //zz assign( byte1, binop(Iop_And32, mkexpr(Rs), mkU32(0xFF00)) ); |
| 3405 | //zz |
| 3406 | //zz assign( tmp16, |
| 3407 | //zz unop(Iop_32to16, |
| 3408 | //zz binop(Iop_Or32, |
| 3409 | //zz binop(Iop_Shl32, mkexpr(byte0), mkU8(8)), |
| 3410 | //zz binop(Iop_Shr32, mkexpr(byte1), mkU8(8)))) ); |
| 3411 | //zz storeBE( mkexpr(EA), getIReg(tmp16) ); |
| 3412 | //zz break; |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 3413 | |
sewardj | fb95797 | 2005-09-08 17:53:03 +0000 | [diff] [blame] | 3414 | case 0x296: // stwbrx (Store Word Byte-Reverse Indexed, PPC32 p531) |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 3415 | DIP("stwbrx r%d,r%d,r%d\n", Rs_addr, Ra_addr, Rb_addr); |
| 3416 | assign( w1, getIReg(Rs_addr) ); |
sewardj | fb95797 | 2005-09-08 17:53:03 +0000 | [diff] [blame] | 3417 | storeBE( mkexpr(EA), gen_byterev32(w1) ); |
| 3418 | break; |
| 3419 | |
| 3420 | default: |
| 3421 | vex_printf("dis_int_ldst_rev(PPC32)(opc2)\n"); |
| 3422 | return False; |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 3423 | } |
| 3424 | return True; |
| 3425 | } |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 3426 | |
| 3427 | |
| 3428 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3429 | /* |
| 3430 | Processor Control Instructions |
| 3431 | */ |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3432 | static Bool dis_proc_ctl ( UInt theInstr ) |
| 3433 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3434 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 3435 | |
| 3436 | /* X-Form */ |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 3437 | UChar crfD = toUChar((theInstr >> 23) & 0x7); /* theInstr[23:25] */ |
| 3438 | UChar b21to22 = toUChar((theInstr >> 21) & 0x3); /* theInstr[21:22] */ |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3439 | UChar Rd_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 3440 | UInt b11to20 = (theInstr >> 11) & 0x3FF; /* theInstr[11:20] */ |
| 3441 | |
| 3442 | /* XFX-Form */ |
| 3443 | UChar Rs_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 3444 | UInt SPR = (theInstr >> 11) & 0x3FF; /* theInstr[11:20] */ |
sewardj | 73a9197 | 2005-09-06 10:25:46 +0000 | [diff] [blame] | 3445 | UInt TBR = (theInstr >> 11) & 0x3FF; /* theInstr[11:20] */ |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3446 | UChar b20 = toUChar((theInstr >> 11) & 0x1); /* theInstr[11] */ |
| 3447 | UInt CRM = (theInstr >> 12) & 0xFF; /* theInstr[12:19] */ |
| 3448 | UChar b11 = toUChar((theInstr >> 11) & 0x1); /* theInstr[20] */ |
| 3449 | |
| 3450 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 3451 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 3452 | |
| 3453 | UInt SPR_flipped = ((SPR & 0x1F) << 5) | ((SPR >> 5) & 0x1F); |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3454 | |
| 3455 | IRTemp Rs = newTemp(Ity_I32); |
sewardj | 7f08078 | 2005-07-27 00:22:15 +0000 | [diff] [blame] | 3456 | //uu IRTemp tmp = newTemp(Ity_I32); |
cerion | 48090c0 | 2005-02-24 11:19:51 +0000 | [diff] [blame] | 3457 | |
sewardj | 73a9197 | 2005-09-06 10:25:46 +0000 | [diff] [blame] | 3458 | /* Reorder TBR field as per PPC32 p475 */ |
| 3459 | TBR = ((TBR & 31) << 5) | ((TBR >> 5) & 31); |
| 3460 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3461 | assign( Rs, getIReg(Rs_addr) ); |
| 3462 | |
| 3463 | if (opc1 != 0x1F || b0 != 0) { |
| 3464 | vex_printf("dis_proc_ctl(PPC32)(opc1|b0)\n"); |
| 3465 | return False; |
| 3466 | } |
| 3467 | |
| 3468 | switch (opc2) { |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 3469 | /* X-Form */ |
sewardj | 55ccc3e | 2005-09-09 19:45:02 +0000 | [diff] [blame] | 3470 | case 0x200: { // mcrxr (Move to Condition Register from XER, PPC32 p466) |
| 3471 | IRTemp xer_0to3 = newTemp(Ity_I8); |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 3472 | if (b21to22 != 0 || b11to20 != 0) { |
| 3473 | vex_printf("dis_proc_ctl(PPC32)(mcrxr,b21to22|b11to20)\n"); |
| 3474 | return False; |
| 3475 | } |
| 3476 | DIP("mcrxr crf%d\n", crfD); |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 3477 | |
sewardj | 55ccc3e | 2005-09-09 19:45:02 +0000 | [diff] [blame] | 3478 | /* Compute XER[0-3] (the top 4 bits of XER) into the bottom |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 3479 | 4 bits of xer_0to3. */ |
sewardj | 55ccc3e | 2005-09-09 19:45:02 +0000 | [diff] [blame] | 3480 | assign( |
| 3481 | xer_0to3, |
| 3482 | unop(Iop_32to8, |
| 3483 | binop( |
| 3484 | Iop_Or32, |
| 3485 | binop( |
| 3486 | Iop_Or32, |
| 3487 | binop( Iop_Shl32, |
| 3488 | binop( Iop_And32, |
| 3489 | unop( Iop_8Uto32, |
| 3490 | IRExpr_Get( OFFB_XER_SO, Ity_I8 )), |
| 3491 | mkU32(1)), |
| 3492 | mkU8(31 -28)), |
| 3493 | binop( Iop_Shl32, |
| 3494 | binop( Iop_And32, |
| 3495 | unop( Iop_8Uto32, |
| 3496 | IRExpr_Get( OFFB_XER_OV, Ity_I8 )), |
| 3497 | mkU32(1)), |
| 3498 | mkU8(30 -28)) |
| 3499 | ), |
| 3500 | binop( Iop_Shl32, |
| 3501 | binop( Iop_And32, |
| 3502 | unop( Iop_8Uto32, |
| 3503 | IRExpr_Get( OFFB_XER_CA, Ity_I8 )), |
| 3504 | mkU32(1)), |
| 3505 | mkU8(29 -28)) |
| 3506 | ) |
| 3507 | ) |
| 3508 | ); |
| 3509 | |
| 3510 | putCR321( crfD, binop(Iop_And8, mkexpr(xer_0to3), mkU8(7<<1)) ); |
| 3511 | putCR0 ( crfD, binop(Iop_And8, mkexpr(xer_0to3), mkU8(1)) ); |
| 3512 | |
| 3513 | // Clear XER[0-3] |
cerion | cb14e73 | 2005-09-09 16:38:19 +0000 | [diff] [blame] | 3514 | stmt( IRStmt_Put( OFFB_XER_SO, mkU8(0) ) ); |
| 3515 | stmt( IRStmt_Put( OFFB_XER_OV, mkU8(0) ) ); |
| 3516 | stmt( IRStmt_Put( OFFB_XER_CA, mkU8(0) ) ); |
| 3517 | break; |
sewardj | 55ccc3e | 2005-09-09 19:45:02 +0000 | [diff] [blame] | 3518 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3519 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3520 | case 0x013: // mfcr (Move from Condition Register, PPC32 p467) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3521 | if (b11to20 != 0) { |
| 3522 | vex_printf("dis_proc_ctl(PPC32)(mfcr,b11to20)\n"); |
| 3523 | return False; |
| 3524 | } |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3525 | DIP("mfcr r%d\n", Rd_addr); |
| 3526 | putIReg( Rd_addr, getEntireCR() ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3527 | break; |
| 3528 | |
| 3529 | /* XFX-Form */ |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3530 | case 0x153: // mfspr (Move from Special-Purpose Register, PPC32 p470) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3531 | |
| 3532 | switch (SPR_flipped) { // Choose a register... |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3533 | |
| 3534 | case 0x1: |
| 3535 | DIP("mfxer r%d\n", Rd_addr); |
| 3536 | /* sheesh [kebab] */ |
| 3537 | putIReg( |
| 3538 | Rd_addr, |
| 3539 | binop( |
| 3540 | Iop_Or32, |
| 3541 | binop( |
| 3542 | Iop_Or32, |
| 3543 | binop( Iop_Shl32, |
| 3544 | binop( Iop_And32, |
| 3545 | unop( Iop_8Uto32, |
| 3546 | IRExpr_Get( OFFB_XER_SO, Ity_I8 )), |
| 3547 | mkU32(1)), |
| 3548 | mkU8(31)), |
| 3549 | binop( Iop_Shl32, |
| 3550 | binop( Iop_And32, |
| 3551 | unop( Iop_8Uto32, |
| 3552 | IRExpr_Get( OFFB_XER_OV, Ity_I8 )), |
| 3553 | mkU32(1)), |
| 3554 | mkU8(30)) |
| 3555 | ), |
| 3556 | binop( |
| 3557 | Iop_Or32, |
| 3558 | binop( Iop_Shl32, |
| 3559 | binop( Iop_And32, |
| 3560 | unop( Iop_8Uto32, |
| 3561 | IRExpr_Get( OFFB_XER_CA, Ity_I8 )), |
| 3562 | mkU32(1)), |
| 3563 | mkU8(29)), |
| 3564 | binop( Iop_And32, |
| 3565 | unop( Iop_8Uto32, |
| 3566 | IRExpr_Get( OFFB_XER_BC, Ity_I8 )), |
| 3567 | mkU32(0xFF)) |
| 3568 | ) |
| 3569 | ) |
| 3570 | ); |
| 3571 | break; |
| 3572 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3573 | case 0x8: |
| 3574 | DIP("mflr r%d\n", Rd_addr); |
| 3575 | putIReg( Rd_addr, getSPR( PPC32_SPR_LR ) ); |
| 3576 | break; |
| 3577 | case 0x9: |
| 3578 | DIP("mfctr r%d\n", Rd_addr); |
| 3579 | putIReg( Rd_addr, getSPR( PPC32_SPR_CTR ) ); |
| 3580 | break; |
| 3581 | case 0x100: |
| 3582 | DIP("mfvrsave r%d\n", Rd_addr); |
| 3583 | putIReg( Rd_addr, getSPR( PPC32_SPR_VRSAVE ) ); |
| 3584 | break; |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 3585 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3586 | case 0x012: case 0x013: case 0x016: |
| 3587 | case 0x019: case 0x01A: case 0x01B: |
| 3588 | case 0x110: case 0x111: case 0x112: case 0x113: |
| 3589 | // case 0x118: // 64bit only |
| 3590 | case 0x11A: case 0x11F: |
| 3591 | case 0x210: case 0x211: case 0x212: case 0x213: |
| 3592 | case 0x214: case 0x215: case 0x216: case 0x217: |
| 3593 | case 0x218: case 0x219: case 0x21A: case 0x21B: |
| 3594 | case 0x21C: case 0x21D: case 0x21E: case 0x21F: |
| 3595 | case 0x3F5: |
| 3596 | vex_printf("dis_proc_ctl(PPC32)(mfspr) - supervisor level op\n"); |
| 3597 | return False; |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 3598 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3599 | default: |
| 3600 | vex_printf("dis_proc_ctl(PPC32)(mfspr,SPR_flipped)(0x%x)\n", |
| 3601 | SPR_flipped); |
| 3602 | return False; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3603 | } |
| 3604 | break; |
| 3605 | |
sewardj | 73a9197 | 2005-09-06 10:25:46 +0000 | [diff] [blame] | 3606 | case 0x173: { // mftb (Move from Time Base, PPC32 p475) |
| 3607 | IRTemp val = newTemp(Ity_I64); |
| 3608 | IRExpr** args = mkIRExprVec_0(); |
| 3609 | IRDirty* d = unsafeIRDirty_1_N ( |
| 3610 | val, |
| 3611 | 0/*regparms*/, |
| 3612 | "ppc32g_dirtyhelper_MFTB", |
| 3613 | &ppc32g_dirtyhelper_MFTB, |
| 3614 | args |
| 3615 | ); |
| 3616 | /* execute the dirty call, dumping the result in val. */ |
| 3617 | stmt( IRStmt_Dirty(d) ); |
| 3618 | |
| 3619 | switch (TBR) { |
| 3620 | case 269: |
| 3621 | putIReg( Rd_addr, unop(Iop_64HIto32, mkexpr(val)) ); |
| 3622 | DIP("mftbu r%d", Rd_addr); |
| 3623 | break; |
| 3624 | case 268: |
| 3625 | putIReg( Rd_addr, unop(Iop_64to32, mkexpr(val)) ); |
| 3626 | DIP("mftb r%d", Rd_addr); |
| 3627 | break; |
| 3628 | default: |
| 3629 | return False; /* illegal instruction */ |
| 3630 | } |
| 3631 | break; |
| 3632 | } |
| 3633 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3634 | case 0x090: // mtcrf (Move to Condition Register Fields, PPC32 p477) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3635 | if (b11 != 0 || b20 != 0) { |
| 3636 | vex_printf("dis_proc_ctl(PPC32)(mtcrf,b11|b20)\n"); |
| 3637 | return False; |
| 3638 | } |
| 3639 | DIP("mtcrf 0x%x,r%d\n", CRM, Rs_addr); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3640 | putCRfields ( mkexpr(Rs), CRM ); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3641 | break; |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3642 | |
| 3643 | case 0x1D3: // mtspr (Move to Special-Purpose Register, PPC32 p483) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3644 | |
| 3645 | switch (SPR_flipped) { // Choose a register... |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3646 | case 0x1: |
| 3647 | DIP("mtxer r%d\n", Rs_addr); |
sewardj | 0e88d8f | 2005-07-21 16:58:55 +0000 | [diff] [blame] | 3648 | stmt(IRStmt_Put( |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3649 | OFFB_XER_SO, |
| 3650 | unop( Iop_32to8, |
| 3651 | binop( Iop_And32, |
sewardj | 0e88d8f | 2005-07-21 16:58:55 +0000 | [diff] [blame] | 3652 | binop(Iop_Shr32, mkexpr(Rs), mkU8(31)), |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3653 | mkU32(1)) ) |
sewardj | 0e88d8f | 2005-07-21 16:58:55 +0000 | [diff] [blame] | 3654 | )); |
| 3655 | stmt(IRStmt_Put( |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3656 | OFFB_XER_OV, |
| 3657 | unop( Iop_32to8, |
| 3658 | binop( Iop_And32, |
sewardj | 0e88d8f | 2005-07-21 16:58:55 +0000 | [diff] [blame] | 3659 | binop(Iop_Shr32, mkexpr(Rs), mkU8(30)), |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3660 | mkU32(1)) ) |
sewardj | 0e88d8f | 2005-07-21 16:58:55 +0000 | [diff] [blame] | 3661 | )); |
| 3662 | stmt(IRStmt_Put( |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3663 | OFFB_XER_CA, |
| 3664 | unop( Iop_32to8, |
| 3665 | binop( Iop_And32, |
sewardj | 0e88d8f | 2005-07-21 16:58:55 +0000 | [diff] [blame] | 3666 | binop(Iop_Shr32, mkexpr(Rs), mkU8(29)), |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3667 | mkU32(1)) ) |
sewardj | 0e88d8f | 2005-07-21 16:58:55 +0000 | [diff] [blame] | 3668 | )); |
| 3669 | stmt(IRStmt_Put( |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3670 | OFFB_XER_BC, |
| 3671 | unop( Iop_32to8, |
sewardj | 0e88d8f | 2005-07-21 16:58:55 +0000 | [diff] [blame] | 3672 | binop( Iop_And32, mkexpr(Rs), mkU32(0xFF)) ) |
| 3673 | )); |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3674 | break; |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3675 | case 0x8: |
| 3676 | DIP("mtlr r%d\n", Rs_addr); |
| 3677 | putSPR( PPC32_SPR_LR, mkexpr(Rs) ); |
| 3678 | break; |
| 3679 | case 0x9: |
| 3680 | DIP("mtctr r%d\n", Rs_addr); |
| 3681 | putSPR( PPC32_SPR_CTR, mkexpr(Rs) ); |
| 3682 | break; |
| 3683 | case 0x100: |
| 3684 | DIP("mtvrsave r%d\n", Rs_addr); |
| 3685 | putSPR( PPC32_SPR_VRSAVE, mkexpr(Rs) ); |
| 3686 | break; |
| 3687 | //zz |
| 3688 | //zz case 0x012: case 0x013: case 0x016: |
| 3689 | //zz case 0x019: case 0x01A: case 0x01B: |
| 3690 | //zz case 0x110: case 0x111: case 0x112: case 0x113: |
| 3691 | //zz // case 0x118: // 64bit only |
| 3692 | //zz case 0x11A: case 0x11C: case 0x11D: |
| 3693 | //zz case 0x210: case 0x211: case 0x212: case 0x213: |
| 3694 | //zz case 0x214: case 0x215: case 0x216: case 0x217: |
| 3695 | //zz case 0x218: case 0x219: case 0x21A: case 0x21B: |
| 3696 | //zz case 0x21C: case 0x21D: case 0x21E: case 0x21F: |
| 3697 | //zz case 0x3F5: |
| 3698 | //zz vex_printf("dis_proc_ctl(PPC32)(mtspr) - supervisor level op\n"); |
| 3699 | //zz return False; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3700 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3701 | default: |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 3702 | vex_printf("dis_proc_ctl(PPC32)(mtspr,SPR_flipped)(%u)\n", |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3703 | SPR_flipped); |
| 3704 | return False; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3705 | } |
| 3706 | break; |
| 3707 | |
| 3708 | default: |
| 3709 | vex_printf("dis_proc_ctl(PPC32)(opc2)\n"); |
| 3710 | return False; |
| 3711 | } |
| 3712 | return True; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3713 | } |
| 3714 | |
| 3715 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3716 | /* |
| 3717 | Cache Management Instructions |
| 3718 | */ |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 3719 | static Bool dis_cache_manage ( UInt theInstr, |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 3720 | DisResult* dres, |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 3721 | VexArchInfo* guest_archinfo ) |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3722 | { |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3723 | /* X-Form */ |
| 3724 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 3725 | UChar b21to25 = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 3726 | UChar Ra_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 3727 | UChar Rb_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 3728 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 3729 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3730 | Int lineszB = guest_archinfo->ppc32_cache_line_szB; |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3731 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3732 | if (opc1 != 0x1F || b21to25 != 0 || b0 != 0) { |
| 3733 | vex_printf("dis_cache_manage(PPC32)(opc1|b21to25|b0)\n"); |
| 3734 | return False; |
| 3735 | } |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 3736 | |
| 3737 | /* stay sane .. */ |
| 3738 | vassert(lineszB == 32 || lineszB == 128); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3739 | |
| 3740 | switch (opc2) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3741 | //zz case 0x2F6: // dcba (Data Cache Block Allocate, PPC32 p380) |
| 3742 | //zz vassert(0); /* AWAITING TEST CASE */ |
| 3743 | //zz DIP("dcba r%d,r%d\n", Ra_addr, Rb_addr); |
| 3744 | //zz if (0) vex_printf("vex ppc32->IR: kludged dcba\n"); |
| 3745 | //zz break; |
sewardj | 20ef547 | 2005-07-21 14:48:31 +0000 | [diff] [blame] | 3746 | |
| 3747 | case 0x056: // dcbf (Data Cache Block Flush, PPC32 p382) |
| 3748 | DIP("dcbf r%d,r%d\n", Ra_addr, Rb_addr); |
| 3749 | /* nop as far as vex is concerned */ |
| 3750 | if (0) vex_printf("vex ppc32->IR: kludged dcbf\n"); |
| 3751 | break; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3752 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3753 | case 0x036: // dcbst (Data Cache Block Store, PPC32 p384) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3754 | DIP("dcbst r%d,r%d\n", Ra_addr, Rb_addr); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3755 | /* nop as far as vex is concerned */ |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3756 | break; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3757 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3758 | case 0x116: // dcbt (Data Cache Block Touch, PPC32 p385) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3759 | DIP("dcbt r%d,r%d\n", Ra_addr, Rb_addr); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3760 | /* nop as far as vex is concerned */ |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3761 | break; |
| 3762 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 3763 | case 0x0F6: // dcbtst (Data Cache Block Touch for Store, PPC32 p386) |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3764 | DIP("dcbtst r%d,r%d\n", Ra_addr, Rb_addr); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3765 | /* nop as far as vex is concerned */ |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3766 | break; |
| 3767 | |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3768 | case 0x3F6: { // dcbz (Data Cache Block Clear to Zero, PPC32 p387) |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 3769 | /* Clear all bytes in cache block at (rA|0) + rB. */ |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3770 | IRTemp EA = newTemp(Ity_I32); |
| 3771 | IRTemp addr = newTemp(Ity_I32); |
| 3772 | IRExpr* irx_addr; |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3773 | UInt i; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3774 | DIP("dcbz r%d,r%d\n", Ra_addr, Rb_addr); |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3775 | assign( EA, |
| 3776 | binop( Iop_Add32, |
| 3777 | getIReg(Rb_addr), |
| 3778 | Ra_addr==0 ? mkU32(0) : getIReg(Ra_addr)) ); |
| 3779 | |
| 3780 | /* Round EA down to the start of the containing block. */ |
| 3781 | assign( addr, |
| 3782 | binop( Iop_And32, |
| 3783 | mkexpr(EA), |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 3784 | mkU32( ~(lineszB-1) )) ); |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3785 | |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 3786 | for (i = 0; i < lineszB / 4; i++) { |
| 3787 | irx_addr = binop( Iop_Add32, mkexpr(addr), mkU32(i*4) ); |
| 3788 | storeBE( irx_addr, mkU32(0) ); |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3789 | } |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3790 | break; |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3791 | } |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3792 | |
sewardj | 7ce9d15 | 2005-03-15 16:54:13 +0000 | [diff] [blame] | 3793 | case 0x3D6: { |
| 3794 | // icbi (Instruction Cache Block Invalidate, PPC32 p431) |
| 3795 | /* Invalidate all translations containing code from the cache |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 3796 | block at (rA|0) + rB. */ |
sewardj | 7ce9d15 | 2005-03-15 16:54:13 +0000 | [diff] [blame] | 3797 | IRTemp addr = newTemp(Ity_I32); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3798 | DIP("icbi r%d,r%d\n", Ra_addr, Rb_addr); |
sewardj | 7ce9d15 | 2005-03-15 16:54:13 +0000 | [diff] [blame] | 3799 | |
| 3800 | assign( addr, |
| 3801 | binop( Iop_Add32, |
| 3802 | getIReg(Rb_addr), |
| 3803 | Ra_addr==0 ? mkU32(0) : getIReg(Ra_addr)) ); |
| 3804 | |
| 3805 | /* Round addr down to the start of the containing block. */ |
| 3806 | stmt( IRStmt_Put( |
| 3807 | OFFB_TISTART, |
| 3808 | binop( Iop_And32, |
| 3809 | mkexpr(addr), |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 3810 | mkU32( ~(lineszB-1) ))) ); |
sewardj | 7ce9d15 | 2005-03-15 16:54:13 +0000 | [diff] [blame] | 3811 | |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 3812 | stmt( IRStmt_Put(OFFB_TILEN, mkU32(lineszB) ) ); |
sewardj | 7ce9d15 | 2005-03-15 16:54:13 +0000 | [diff] [blame] | 3813 | |
sewardj | a8078f6 | 2005-03-15 18:27:40 +0000 | [diff] [blame] | 3814 | /* be paranoid ... */ |
| 3815 | stmt( IRStmt_MFence() ); |
| 3816 | |
sewardj | 7ce9d15 | 2005-03-15 16:54:13 +0000 | [diff] [blame] | 3817 | irbb->jumpkind = Ijk_TInval; |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 3818 | irbb->next = mkU32(guest_CIA_curr_instr + 4); |
| 3819 | dres->whatNext = Dis_StopHere; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3820 | break; |
sewardj | 7ce9d15 | 2005-03-15 16:54:13 +0000 | [diff] [blame] | 3821 | } |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3822 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 3823 | default: |
| 3824 | vex_printf("dis_cache_manage(PPC32)(opc2)\n"); |
| 3825 | return False; |
| 3826 | } |
| 3827 | return True; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 3828 | } |
| 3829 | |
| 3830 | |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 3831 | /*------------------------------------------------------------*/ |
| 3832 | /*--- Floating Point Helpers ---*/ |
| 3833 | /*------------------------------------------------------------*/ |
| 3834 | |
| 3835 | /* --- Set the emulation-warning pseudo-register. --- */ |
| 3836 | |
| 3837 | static void put_emwarn ( IRExpr* e /* :: Ity_I32 */ ) |
| 3838 | { |
| 3839 | vassert(typeOfIRExpr(irbb->tyenv,e) == Ity_I32); |
| 3840 | stmt( IRStmt_Put( OFFB_EMWARN, e ) ); |
| 3841 | } |
| 3842 | |
| 3843 | /* --------- Synthesise a 2-bit FPU rounding mode. --------- */ |
| 3844 | /* Produces a value in 0 .. 3, which is encoded as per the type |
| 3845 | IRRoundingMode. PPC32RoundingMode encoding is different to |
| 3846 | IRRoundingMode, so need to map it. |
| 3847 | */ |
| 3848 | static IRExpr* /* :: Ity_I32 */ get_roundingmode ( void ) |
| 3849 | { |
| 3850 | /* |
| 3851 | rounding mode | PPC | IR |
| 3852 | ------------------------ |
| 3853 | to nearest | 00 | 00 |
| 3854 | to zero | 01 | 11 |
| 3855 | to +infinity | 10 | 10 |
| 3856 | to -infinity | 11 | 01 |
| 3857 | */ |
| 3858 | IRTemp rm_PPC32 = newTemp(Ity_I32); |
| 3859 | assign( rm_PPC32, getReg_masked( PPC32_SPR_FPSCR, MASK_FPSCR_RN ) ); |
| 3860 | |
| 3861 | // rm_IR = XOR( rm_PPC32, (rm_PPC32 << 1) & 2) |
| 3862 | return binop(Iop_Xor32, mkexpr(rm_PPC32), |
| 3863 | binop(Iop_And32, mkU32(2), |
| 3864 | binop(Iop_Shl32, mkexpr(rm_PPC32), mkU8(1)))); |
| 3865 | } |
| 3866 | |
| 3867 | /* Round float to single precision |
| 3868 | - returns type Ity_F64 */ |
| 3869 | static IRExpr* roundToSgl ( IRExpr* src ) |
| 3870 | { |
| 3871 | return unop(Iop_F32toF64, binop(Iop_F64toF32, get_roundingmode(), src)); |
| 3872 | } |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3873 | |
| 3874 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3875 | /*------------------------------------------------------------*/ |
| 3876 | /*--- Floating Point Instruction Translation ---*/ |
| 3877 | /*------------------------------------------------------------*/ |
| 3878 | |
| 3879 | /* |
| 3880 | Floating Point Load Instructions |
| 3881 | */ |
| 3882 | static Bool dis_fp_load ( UInt theInstr ) |
| 3883 | { |
| 3884 | /* X-Form */ |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3885 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 3886 | UChar frD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 3887 | UChar rA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 3888 | UChar rB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 3889 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 3890 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3891 | |
| 3892 | /* D-Form */ |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3893 | UInt d_imm = (theInstr >> 0) & 0xFFFF; /* theInstr[0:15] */ |
| 3894 | |
sewardj | db36c0f | 2005-07-03 00:05:31 +0000 | [diff] [blame] | 3895 | Int exts_d_imm = extend_s_16to32(d_imm); |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3896 | |
| 3897 | IRTemp EA = newTemp(Ity_I32); |
| 3898 | IRTemp rA = newTemp(Ity_I32); |
| 3899 | IRTemp rB = newTemp(Ity_I32); |
| 3900 | IRTemp rA_or_0 = newTemp(Ity_I32); |
| 3901 | |
| 3902 | assign( rA, getIReg(rA_addr) ); |
| 3903 | assign( rB, getIReg(rB_addr) ); |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 3904 | assign( rA_or_0, ea_rA_or_zero(rA_addr) ); |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3905 | |
| 3906 | switch(opc1) { |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 3907 | case 0x30: // lfs (Load Float Single, PPC32 p441) |
| 3908 | DIP("lfs fr%d,%d(r%d)\n", frD_addr, exts_d_imm, rA_addr); |
| 3909 | assign( EA, binop(Iop_Add32, mkU32(exts_d_imm), mkexpr(rA_or_0)) ); |
| 3910 | putFReg( frD_addr, unop(Iop_F32toF64, loadBE(Ity_F32, mkexpr(EA))) ); |
| 3911 | break; |
| 3912 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 3913 | //zz case 0x31: // lfsu (Load Float Single with Update, PPC32 p442) |
| 3914 | //zz if (rA_addr == 0) { |
| 3915 | //zz vex_printf("dis_fp_load(PPC32)(instr,lfsu)\n"); |
| 3916 | //zz return False; |
| 3917 | //zz } |
| 3918 | //zz DIP("lfsu fr%d,%d(r%d)\n", frD_addr, exts_d_imm, rA_addr); |
| 3919 | //zz assign( EA, binop(Iop_Add32, mkU32(exts_d_imm), mkexpr(rA)) ); |
| 3920 | //zz putFReg( frD_addr, unop(Iop_F32toF64, loadBE(Ity_F32, mkexpr(EA))) ); |
| 3921 | //zz putIReg( rA_addr, mkexpr(EA) ); |
| 3922 | //zz break; |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3923 | |
| 3924 | case 0x32: // lfd (Load Float Double, PPC32 p437) |
sewardj | db36c0f | 2005-07-03 00:05:31 +0000 | [diff] [blame] | 3925 | DIP("lfd fr%d,%d(r%d)\n", frD_addr, exts_d_imm, rA_addr); |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 3926 | assign( EA, binop(Iop_Add32, mkU32(exts_d_imm), mkexpr(rA_or_0)) ); |
| 3927 | putFReg( frD_addr, loadBE(Ity_F64, mkexpr(EA)) ); |
| 3928 | break; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3929 | |
sewardj | 0e2cc67 | 2005-07-29 21:58:51 +0000 | [diff] [blame] | 3930 | case 0x33: // lfdu (Load Float Double with Update, PPC32 p438) |
| 3931 | if (rA_addr == 0) { |
| 3932 | vex_printf("dis_fp_load(PPC32)(instr,lfdu)\n"); |
| 3933 | return False; |
| 3934 | } |
| 3935 | DIP("lfdu fr%d,%d(r%d)\n", frD_addr, exts_d_imm, rA_addr); |
| 3936 | assign( EA, binop(Iop_Add32, mkU32(exts_d_imm), mkexpr(rA)) ); |
| 3937 | putFReg( frD_addr, loadBE(Ity_F64, mkexpr(EA)) ); |
| 3938 | putIReg( rA_addr, mkexpr(EA) ); |
| 3939 | break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 3940 | |
| 3941 | case 0x1F: |
| 3942 | if (b0 != 0) { |
| 3943 | vex_printf("dis_fp_load(PPC32)(instr,b0)\n"); |
| 3944 | return False; |
| 3945 | } |
| 3946 | |
| 3947 | switch(opc2) { |
| 3948 | case 0x217: // lfsx (Load Float Single Indexed, PPC32 p444) |
| 3949 | DIP("lfsx fr%d,r%d,r%d\n", frD_addr, rA_addr, rB_addr); |
| 3950 | assign( EA, binop(Iop_Add32, mkexpr(rB), mkexpr(rA_or_0)) ); |
| 3951 | putFReg( frD_addr, unop( Iop_F32toF64, |
| 3952 | loadBE(Ity_F32, mkexpr(EA))) ); |
| 3953 | break; |
| 3954 | |
sewardj | 0e2cc67 | 2005-07-29 21:58:51 +0000 | [diff] [blame] | 3955 | case 0x237: // lfsux (Load Float Single with Update Indexed, PPC32 p443) |
| 3956 | if (rA_addr == 0) { |
| 3957 | vex_printf("dis_fp_load(PPC32)(instr,lfsux)\n"); |
| 3958 | return False; |
| 3959 | } |
| 3960 | DIP("lfsux fr%d,r%d,r%d\n", frD_addr, rA_addr, rB_addr); |
| 3961 | assign( EA, binop(Iop_Add32, mkexpr(rB), mkexpr(rA)) ); |
| 3962 | putFReg( frD_addr, unop(Iop_F32toF64, loadBE(Ity_F32, mkexpr(EA))) ); |
| 3963 | putIReg( rA_addr, mkexpr(EA) ); |
| 3964 | break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 3965 | |
| 3966 | case 0x257: // lfdx (Load Float Double Indexed, PPC32 p440) |
| 3967 | DIP("lfdx fr%d,r%d,r%d\n", frD_addr, rA_addr, rB_addr); |
| 3968 | assign( EA, binop(Iop_Add32, mkexpr(rB), mkexpr(rA_or_0)) ); |
| 3969 | putFReg( frD_addr, loadBE(Ity_F64, mkexpr(EA)) ); |
| 3970 | break; |
| 3971 | |
sewardj | 0e2cc67 | 2005-07-29 21:58:51 +0000 | [diff] [blame] | 3972 | case 0x277: // lfdux (Load Float Double with Update Indexed, PPC32 p439) |
| 3973 | if (rA_addr == 0) { |
| 3974 | vex_printf("dis_fp_load(PPC32)(instr,lfdux)\n"); |
| 3975 | return False; |
| 3976 | } |
| 3977 | DIP("lfdux fr%d,r%d,r%d\n", frD_addr, rA_addr, rB_addr); |
| 3978 | assign( EA, binop(Iop_Add32, mkexpr(rB), mkexpr(rA)) ); |
| 3979 | putFReg( frD_addr, loadBE(Ity_F64, mkexpr(EA)) ); |
| 3980 | putIReg( rA_addr, mkexpr(EA) ); |
| 3981 | break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 3982 | |
| 3983 | default: |
| 3984 | vex_printf("dis_fp_load(PPC32)(opc2)\n"); |
| 3985 | return False; |
| 3986 | } |
| 3987 | break; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 3988 | |
| 3989 | default: |
| 3990 | vex_printf("dis_fp_load(PPC32)(opc1)\n"); |
| 3991 | return False; |
| 3992 | } |
| 3993 | return True; |
| 3994 | } |
| 3995 | |
| 3996 | |
| 3997 | |
| 3998 | /* |
| 3999 | Floating Point Store Instructions |
| 4000 | */ |
| 4001 | static Bool dis_fp_store ( UInt theInstr ) |
| 4002 | { |
| 4003 | /* X-Form */ |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4004 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4005 | UChar frS_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4006 | UChar rA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 4007 | UChar rB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4008 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4009 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4010 | |
| 4011 | /* D-Form */ |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4012 | UInt d_imm = (theInstr >> 0) & 0xFFFF; /* theInstr[0:15] */ |
| 4013 | |
sewardj | db36c0f | 2005-07-03 00:05:31 +0000 | [diff] [blame] | 4014 | Int exts_d_imm = extend_s_16to32(d_imm); |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4015 | |
| 4016 | IRTemp EA = newTemp(Ity_I32); |
| 4017 | IRTemp frS = newTemp(Ity_F64); |
| 4018 | IRTemp rA = newTemp(Ity_I32); |
| 4019 | IRTemp rB = newTemp(Ity_I32); |
| 4020 | IRTemp rA_or_0 = newTemp(Ity_I32); |
| 4021 | |
| 4022 | assign( frS, getFReg(frS_addr) ); |
| 4023 | assign( rA, getIReg(rA_addr) ); |
| 4024 | assign( rB, getIReg(rB_addr) ); |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 4025 | assign( rA_or_0, ea_rA_or_zero(rA_addr) ); |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4026 | |
| 4027 | switch(opc1) { |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4028 | |
| 4029 | case 0x34: // stfs (Store Float Single, PPC32 p518) |
| 4030 | DIP("stfs fr%d,%d(r%d)\n", frS_addr, exts_d_imm, rA_addr); |
| 4031 | assign( EA, binop(Iop_Add32, mkU32(exts_d_imm), mkexpr(rA_or_0)) ); |
| 4032 | storeBE( mkexpr(EA), |
| 4033 | binop(Iop_F64toF32, get_roundingmode(), mkexpr(frS)) ); |
| 4034 | break; |
| 4035 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 4036 | //zz case 0x35: // stfsu (Store Float Single with Update, PPC32 p519) |
| 4037 | //zz if (rA_addr == 0) { |
| 4038 | //zz vex_printf("dis_fp_store(PPC32)(instr,stfsu)\n"); |
| 4039 | //zz return False; |
| 4040 | //zz } |
| 4041 | //zz DIP("stfsu fr%d,%d(r%d)\n", frS_addr, exts_d_imm, rA_addr); |
| 4042 | //zz assign( EA, binop(Iop_Add32, mkU32(exts_d_imm), mkexpr(rA)) ); |
| 4043 | //zz storeBE( mkexpr(EA), |
| 4044 | //zz binop(Iop_F64toF32, get_roundingmode(), mkexpr(frS)) ); |
| 4045 | //zz putIReg( rA_addr, mkexpr(EA) ); |
| 4046 | //zz break; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4047 | |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4048 | case 0x36: // stfd (Store Float Double, PPC32 p513) |
sewardj | db36c0f | 2005-07-03 00:05:31 +0000 | [diff] [blame] | 4049 | DIP("stfd fr%d,%d(r%d)\n", frS_addr, exts_d_imm, rA_addr); |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4050 | assign( EA, binop(Iop_Add32, mkU32(exts_d_imm), mkexpr(rA_or_0)) ); |
| 4051 | storeBE( mkexpr(EA), mkexpr(frS) ); |
| 4052 | break; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4053 | |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4054 | case 0x37: // stfdu (Store Float Double with Update, PPC32 p514) |
| 4055 | if (rA_addr == 0) { |
| 4056 | vex_printf("dis_fp_store(PPC32)(instr,stfdu)\n"); |
| 4057 | return False; |
| 4058 | } |
| 4059 | DIP("stfdu fr%d,%d(r%d)\n", frS_addr, exts_d_imm, rA_addr); |
| 4060 | assign( EA, binop(Iop_Add32, mkU32(exts_d_imm), mkexpr(rA)) ); |
| 4061 | storeBE( mkexpr(EA), mkexpr(frS) ); |
| 4062 | putIReg( rA_addr, mkexpr(EA) ); |
| 4063 | break; |
| 4064 | |
| 4065 | case 0x1F: |
| 4066 | if (b0 != 0) { |
| 4067 | vex_printf("dis_fp_store(PPC32)(instr,b0)\n"); |
| 4068 | return False; |
| 4069 | } |
| 4070 | |
| 4071 | switch(opc2) { |
| 4072 | case 0x297: // stfsx (Store Float Single Indexed, PPC32 p521) |
| 4073 | DIP("stfsx fr%d,r%d,r%d\n", frS_addr, rA_addr, rB_addr); |
| 4074 | assign( EA, binop(Iop_Add32, mkexpr(rB), mkexpr(rA_or_0)) ); |
| 4075 | storeBE( mkexpr(EA), |
| 4076 | binop(Iop_F64toF32, get_roundingmode(), mkexpr(frS)) ); |
| 4077 | break; |
| 4078 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 4079 | //zz case 0x2B7: // stfsux (Store Float Single with Update Indexed, PPC32 p520) |
| 4080 | //zz if (rA_addr == 0) { |
| 4081 | //zz vex_printf("dis_fp_store(PPC32)(instr,stfsux)\n"); |
| 4082 | //zz return False; |
| 4083 | //zz } |
| 4084 | //zz DIP("stfsux fr%d,r%d,r%d\n", frS_addr, rA_addr, rB_addr); |
| 4085 | //zz assign( EA, binop(Iop_Add32, mkexpr(rB), mkexpr(rA)) ); |
| 4086 | //zz storeBE( mkexpr(EA), |
| 4087 | //zz binop(Iop_F64toF32, get_roundingmode(), mkexpr(frS)) ); |
| 4088 | //zz putIReg( rA_addr, mkexpr(EA) ); |
| 4089 | //zz break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4090 | |
| 4091 | case 0x2D7: // stfdx (Store Float Double Indexed, PPC32 p516) |
| 4092 | DIP("stfdx fr%d,r%d,r%d\n", frS_addr, rA_addr, rB_addr); |
| 4093 | assign( EA, binop(Iop_Add32, mkexpr(rB), mkexpr(rA_or_0)) ); |
| 4094 | storeBE( mkexpr(EA), mkexpr(frS) ); |
| 4095 | break; |
| 4096 | |
sewardj | 5f63c0c | 2005-09-09 10:36:55 +0000 | [diff] [blame] | 4097 | case 0x2F7: // stfdux (Store Float Double with Update Indexed, PPC32 p515) |
| 4098 | if (rA_addr == 0) { |
| 4099 | vex_printf("dis_fp_store(PPC32)(instr,stfdux)\n"); |
| 4100 | return False; |
| 4101 | } |
| 4102 | DIP("stfdux fr%d,r%d,r%d\n", frS_addr, rA_addr, rB_addr); |
| 4103 | assign( EA, binop(Iop_Add32, mkexpr(rB), mkexpr(rA)) ); |
| 4104 | storeBE( mkexpr(EA), mkexpr(frS) ); |
| 4105 | putIReg( rA_addr, mkexpr(EA) ); |
| 4106 | break; |
| 4107 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 4108 | //zz case 0x3D7: // stfiwx (Store Float as Int, Indexed, PPC32 p517) |
| 4109 | //zz DIP("stfiwx fr%d,r%d,r%d\n", frS_addr, rA_addr, rB_addr); |
| 4110 | //zz assign( EA, binop(Iop_Add32, mkexpr(rB), mkexpr(rA_or_0)) ); |
| 4111 | //zz storeBE( mkexpr(EA), |
| 4112 | //zz unop(Iop_64to32, unop(Iop_ReinterpF64asI64, mkexpr(frS))) ); |
| 4113 | //zz break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4114 | |
| 4115 | default: |
| 4116 | vex_printf("dis_fp_store(PPC32)(opc2)\n"); |
| 4117 | return False; |
| 4118 | } |
| 4119 | break; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4120 | |
| 4121 | default: |
| 4122 | vex_printf("dis_fp_store(PPC32)(opc1)\n"); |
| 4123 | return False; |
| 4124 | } |
| 4125 | return True; |
| 4126 | } |
| 4127 | |
| 4128 | |
| 4129 | |
| 4130 | /* |
| 4131 | Floating Point Arith Instructions |
| 4132 | */ |
| 4133 | static Bool dis_fp_arith ( UInt theInstr ) |
| 4134 | { |
| 4135 | /* A-Form */ |
| 4136 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4137 | UChar frD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4138 | UChar frA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 4139 | UChar frB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4140 | UChar frC_addr = toUChar((theInstr >> 6) & 0x1F); /* theInstr[6:10] */ |
| 4141 | UChar opc2 = toUChar((theInstr >> 1) & 0x1F); /* theInstr[1:5] */ |
| 4142 | UChar flag_Rc = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4143 | // Note: flag_Rc ignored as fp exceptions not supported. |
| 4144 | |
| 4145 | IRTemp frD = newTemp(Ity_F64); |
| 4146 | IRTemp frA = newTemp(Ity_F64); |
| 4147 | IRTemp frB = newTemp(Ity_F64); |
| 4148 | IRTemp frC = newTemp(Ity_F64); |
| 4149 | |
| 4150 | assign( frA, getFReg(frA_addr)); |
| 4151 | assign( frB, getFReg(frB_addr)); |
| 4152 | assign( frC, getFReg(frC_addr)); |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4153 | |
| 4154 | switch (opc1) { |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4155 | case 0x3B: |
| 4156 | switch (opc2) { |
| 4157 | case 0x12: // fdivs (Floating Divide Single, PPC32 p407) |
| 4158 | if (frC_addr != 0) { |
| 4159 | vex_printf("dis_fp_arith(PPC32)(instr,fdivs)\n"); |
| 4160 | return False; |
| 4161 | } |
| 4162 | DIP("fdivs%s fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4163 | frD_addr, frA_addr, frB_addr); |
| 4164 | assign( frD, roundToSgl( binop(Iop_DivF64, mkexpr(frA), mkexpr(frB)) )); |
| 4165 | break; |
| 4166 | |
| 4167 | case 0x14: // fsubs (Floating Subtract Single, PPC32 p430) |
| 4168 | if (frC_addr != 0) { |
| 4169 | vex_printf("dis_fp_arith(PPC32)(instr,fsubs)\n"); |
| 4170 | return False; |
| 4171 | } |
| 4172 | DIP("fsubs%s fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4173 | frD_addr, frA_addr, frB_addr); |
| 4174 | assign( frD, roundToSgl( |
| 4175 | binop(Iop_SubF64, mkexpr(frA), mkexpr(frB)) )); |
| 4176 | break; |
| 4177 | |
| 4178 | case 0x15: // fadds (Floating Add Single, PPC32 p401) |
| 4179 | if (frC_addr != 0) { |
| 4180 | vex_printf("dis_fp_arith(PPC32)(instr,fadds)\n"); |
| 4181 | return False; |
| 4182 | } |
| 4183 | DIP("fadds%s fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4184 | frD_addr, frA_addr, frB_addr); |
| 4185 | assign( frD, roundToSgl( |
| 4186 | binop(Iop_AddF64, mkexpr(frA), mkexpr(frB)) )); |
| 4187 | break; |
| 4188 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 4189 | //zz case 0x16: // fsqrts (Floating SqRt (Single-Precision), PPC32 p428) |
| 4190 | //zz if (frA_addr != 0 || frC_addr != 0) { |
| 4191 | //zz vex_printf("dis_fp_arith(PPC32)(instr,fsqrts)\n"); |
| 4192 | //zz return False; |
| 4193 | //zz } |
| 4194 | //zz DIP("fsqrts%s fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4195 | //zz frD_addr, frB_addr); |
| 4196 | //zz assign( frD, roundToSgl( unop(Iop_SqrtF64, mkexpr(frB)) )); |
| 4197 | //zz break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4198 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 4199 | //zz case 0x18: // fres (Floating Reciprocal Estimate Single, PPC32 p421) |
| 4200 | //zz if (frA_addr != 0 || frC_addr != 0) { |
| 4201 | //zz vex_printf("dis_fp_arith(PPC32)(instr,fres)\n"); |
| 4202 | //zz return False; |
| 4203 | //zz } |
| 4204 | //zz DIP("fres%s fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4205 | //zz frD_addr, frB_addr); |
| 4206 | //zz DIP(" => not implemented\n"); |
| 4207 | //zz // CAB: Can we use one of the 128 bit SIMD Iop_Recip32F ops? |
| 4208 | //zz return False; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4209 | |
| 4210 | case 0x19: // fmuls (Floating Multiply Single, PPC32 p414) |
| 4211 | if (frB_addr != 0) { |
| 4212 | vex_printf("dis_fp_arith(PPC32)(instr,fmuls)\n"); |
| 4213 | return False; |
| 4214 | } |
| 4215 | DIP("fmuls%s fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4216 | frD_addr, frA_addr, frC_addr); |
| 4217 | assign( frD, roundToSgl( binop(Iop_MulF64, mkexpr(frA), mkexpr(frC)) )); |
| 4218 | break; |
| 4219 | |
| 4220 | default: |
| 4221 | vex_printf("dis_fp_arith(PPC32)(3B: opc2)\n"); |
| 4222 | return False; |
| 4223 | } |
| 4224 | break; |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4225 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4226 | case 0x3F: |
| 4227 | switch (opc2) { |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4228 | case 0x12: // fdiv (Floating Divide (Double-Precision), PPC32 p406) |
| 4229 | if (frC_addr != 0) { |
| 4230 | vex_printf("dis_fp_arith(PPC32)(instr,fdiv)\n"); |
| 4231 | return False; |
| 4232 | } |
| 4233 | DIP("fdiv%s fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4234 | frD_addr, frA_addr, frB_addr); |
| 4235 | assign( frD, binop( Iop_DivF64, mkexpr(frA), mkexpr(frB) ) ); |
| 4236 | break; |
| 4237 | |
| 4238 | case 0x14: // fsub (Floating Subtract (Double-Precision), PPC32 p429) |
| 4239 | if (frC_addr != 0) { |
| 4240 | vex_printf("dis_fp_arith(PPC32)(instr,fsub)\n"); |
| 4241 | return False; |
| 4242 | } |
| 4243 | DIP("fsub%s fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4244 | frD_addr, frA_addr, frB_addr); |
| 4245 | assign( frD, binop( Iop_SubF64, mkexpr(frA), mkexpr(frB) ) ); |
| 4246 | break; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4247 | |
| 4248 | case 0x15: // fadd (Floating Add (Double-Precision), PPC32 p400) |
| 4249 | if (frC_addr != 0) { |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4250 | vex_printf("dis_fp_arith(PPC32)(instr,fadd)\n"); |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4251 | return False; |
| 4252 | } |
| 4253 | DIP("fadd%s fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4254 | frD_addr, frA_addr, frB_addr); |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4255 | assign( frD, binop( Iop_AddF64, mkexpr(frA), mkexpr(frB) ) ); |
| 4256 | break; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4257 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 4258 | //zz case 0x16: // fsqrt (Floating SqRt (Double-Precision), PPC32 p427) |
| 4259 | //zz if (frA_addr != 0 || frC_addr != 0) { |
| 4260 | //zz vex_printf("dis_fp_arith(PPC32)(instr,fsqrt)\n"); |
| 4261 | //zz return False; |
| 4262 | //zz } |
| 4263 | //zz DIP("fsqrt%s fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4264 | //zz frD_addr, frB_addr); |
| 4265 | //zz assign( frD, unop( Iop_SqrtF64, mkexpr(frB) ) ); |
| 4266 | //zz break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4267 | |
| 4268 | case 0x17: { // fsel (Floating Select, PPC32 p426) |
| 4269 | IRTemp cc = newTemp(Ity_I32); |
| 4270 | IRTemp cc_b0 = newTemp(Ity_I32); |
| 4271 | |
| 4272 | DIP("fsel%s fr%d,fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4273 | frD_addr, frA_addr, frC_addr, frB_addr); |
| 4274 | |
| 4275 | // cc: UN == 0x41, LT == 0x01, GT == 0x00, EQ == 0x40 |
| 4276 | // => GT|EQ == (cc & 0x1 == 0) |
| 4277 | assign( cc, binop(Iop_CmpF64, mkexpr(frA), IRExpr_Const(IRConst_F64(0))) ); |
| 4278 | assign( cc_b0, binop(Iop_And32, mkexpr(cc), mkU32(1)) ); |
| 4279 | |
| 4280 | // frD = (frA >= 0.0) ? frC : frB |
| 4281 | // = (cc_b0 == 0) ? frC : frB |
| 4282 | assign( frD, |
| 4283 | IRExpr_Mux0X( |
| 4284 | unop(Iop_1Uto8, |
| 4285 | binop(Iop_CmpEQ32, mkexpr(cc_b0), mkU32(0))), |
| 4286 | mkexpr(frB), |
| 4287 | mkexpr(frC) )); |
| 4288 | break; |
| 4289 | } |
| 4290 | |
| 4291 | case 0x19: // fmul (Floating Multiply (Double Precision), PPC32 p413) |
| 4292 | if (frB_addr != 0) { |
| 4293 | vex_printf("dis_fp_arith(PPC32)(instr,fmul)\n"); |
| 4294 | return False; |
| 4295 | } |
| 4296 | DIP("fmul%s fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4297 | frD_addr, frA_addr, frC_addr); |
| 4298 | assign( frD, binop( Iop_MulF64, mkexpr(frA), mkexpr(frC) ) ); |
| 4299 | break; |
| 4300 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 4301 | //zz case 0x1A: // frsqrte (Floating Reciprocal SqRt Estimate, PPC32 p424) |
| 4302 | //zz if (frA_addr != 0 || frC_addr != 0) { |
| 4303 | //zz vex_printf("dis_fp_arith(PPC32)(instr,frsqrte)\n"); |
| 4304 | //zz return False; |
| 4305 | //zz } |
| 4306 | //zz DIP("frsqrte%s fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4307 | //zz frD_addr, frB_addr); |
| 4308 | //zz DIP(" => not implemented\n"); |
| 4309 | //zz // CAB: Iop_SqrtF64, then one of the 128 bit SIMD Iop_Recip32F ops? |
| 4310 | //zz return False; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4311 | |
| 4312 | default: |
| 4313 | vex_printf("dis_fp_arith(PPC32)(3F: opc2)\n"); |
| 4314 | return False; |
| 4315 | } |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4316 | break; |
| 4317 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4318 | default: |
| 4319 | vex_printf("dis_fp_arith(PPC32)(opc1)\n"); |
| 4320 | return False; |
| 4321 | } |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 4322 | |
| 4323 | putFReg( frD_addr, mkexpr(frD) ); |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 4324 | return True; |
| 4325 | } |
| 4326 | |
| 4327 | |
| 4328 | |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4329 | /* |
| 4330 | Floating Point Mult-Add Instructions |
| 4331 | */ |
| 4332 | static Bool dis_fp_multadd ( UInt theInstr ) |
| 4333 | { |
| 4334 | /* A-Form */ |
| 4335 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4336 | UChar frD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4337 | UChar frA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 4338 | UChar frB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4339 | UChar frC_addr = toUChar((theInstr >> 6) & 0x1F); /* theInstr[6:10] */ |
| 4340 | UChar opc2 = toUChar((theInstr >> 1) & 0x1F); /* theInstr[1:5] */ |
| 4341 | UChar flag_Rc = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 4342 | |
| 4343 | IRTemp frD = newTemp(Ity_F64); |
| 4344 | IRTemp frA = newTemp(Ity_F64); |
| 4345 | IRTemp frB = newTemp(Ity_F64); |
| 4346 | IRTemp frC = newTemp(Ity_F64); |
| 4347 | |
| 4348 | assign( frA, getFReg(frA_addr)); |
| 4349 | assign( frB, getFReg(frB_addr)); |
| 4350 | assign( frC, getFReg(frC_addr)); |
| 4351 | |
| 4352 | switch (opc1) { |
| 4353 | case 0x3B: |
| 4354 | switch (opc2) { |
| 4355 | case 0x1C: // fmsubs (Floating Mult-Subtr Single, PPC32 p412) |
| 4356 | DIP("fmsubs%s fr%d,fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4357 | frD_addr, frA_addr, frC_addr, frB_addr); |
| 4358 | assign( frD, roundToSgl( |
| 4359 | binop( Iop_SubF64, |
| 4360 | binop(Iop_MulF64, mkexpr(frA), mkexpr(frC)), |
| 4361 | mkexpr(frB)) )); |
| 4362 | break; |
| 4363 | |
| 4364 | case 0x1D: // fmadds (Floating Mult-Add Single, PPC32 p409) |
| 4365 | DIP("fmadds%s fr%d,fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4366 | frD_addr, frA_addr, frC_addr, frB_addr); |
| 4367 | assign( frD, roundToSgl( |
| 4368 | binop( Iop_AddF64, |
| 4369 | binop(Iop_MulF64, mkexpr(frA), mkexpr(frC)), |
| 4370 | mkexpr(frB)) )); |
| 4371 | break; |
| 4372 | |
| 4373 | case 0x1E: // fnmsubs (Float Neg Mult-Subtr Single, PPC32 p420) |
| 4374 | DIP("fnmsubs%s fr%d,fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4375 | frD_addr, frA_addr, frC_addr, frB_addr); |
| 4376 | assign( frD, roundToSgl( |
| 4377 | unop(Iop_NegF64, |
| 4378 | binop(Iop_SubF64, |
| 4379 | binop(Iop_MulF64, mkexpr(frA), mkexpr(frC)), |
| 4380 | mkexpr(frB))) )); |
| 4381 | break; |
| 4382 | |
| 4383 | case 0x1F: // fnmadds (Floating Negative Multiply-Add Single, PPC32 p418) |
| 4384 | DIP("fnmadds%s fr%d,fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4385 | frD_addr, frA_addr, frC_addr, frB_addr); |
| 4386 | assign( frD, roundToSgl( |
| 4387 | unop(Iop_NegF64, |
| 4388 | binop(Iop_AddF64, |
| 4389 | binop(Iop_MulF64, mkexpr(frA), mkexpr(frC)), |
| 4390 | mkexpr(frB))) )); |
| 4391 | break; |
| 4392 | |
| 4393 | default: |
| 4394 | vex_printf("dis_fp_multadd(PPC32)(3B: opc2)\n"); |
| 4395 | return False; |
| 4396 | } |
| 4397 | break; |
| 4398 | |
| 4399 | case 0x3F: |
| 4400 | switch (opc2) { |
| 4401 | case 0x1C: // fmsub (Float Mult-Subtr (Double Precision), PPC32 p411) |
| 4402 | DIP("fmsub%s fr%d,fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4403 | frD_addr, frA_addr, frC_addr, frB_addr); |
| 4404 | assign( frD, binop( Iop_SubF64, |
| 4405 | binop( Iop_MulF64, mkexpr(frA), mkexpr(frC) ), |
| 4406 | mkexpr(frB) )); |
| 4407 | break; |
| 4408 | |
| 4409 | case 0x1D: // fmadd (Float Mult-Add (Double Precision), PPC32 p408) |
| 4410 | DIP("fmadd%s fr%d,fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4411 | frD_addr, frA_addr, frC_addr, frB_addr); |
| 4412 | assign( frD, binop( Iop_AddF64, |
| 4413 | binop( Iop_MulF64, mkexpr(frA), mkexpr(frC) ), |
| 4414 | mkexpr(frB) )); |
| 4415 | break; |
| 4416 | |
sewardj | 0e2cc67 | 2005-07-29 21:58:51 +0000 | [diff] [blame] | 4417 | case 0x1E: // fnmsub (Float Neg Mult-Subtr (Double Precision), PPC32 p419) |
| 4418 | DIP("fnmsub%s fr%d,fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4419 | frD_addr, frA_addr, frC_addr, frB_addr); |
| 4420 | assign( frD, unop( Iop_NegF64, |
| 4421 | binop( Iop_SubF64, |
| 4422 | binop( Iop_MulF64, mkexpr(frA), mkexpr(frC) ), |
| 4423 | mkexpr(frB) ))); |
| 4424 | break; |
| 4425 | |
| 4426 | case 0x1F: // fnmadd (Float Neg Mult-Add (Double Precision), PPC32 p417) |
| 4427 | DIP("fnmadd%s fr%d,fr%d,fr%d,fr%d\n", flag_Rc ? "." : "", |
| 4428 | frD_addr, frA_addr, frC_addr, frB_addr); |
| 4429 | assign( frD, unop( Iop_NegF64, |
| 4430 | binop( Iop_AddF64, |
| 4431 | binop( Iop_MulF64, mkexpr(frA), mkexpr(frC) ), |
| 4432 | mkexpr(frB) ))); |
| 4433 | break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4434 | |
| 4435 | default: |
| 4436 | vex_printf("dis_fp_multadd(PPC32)(3F: opc2)\n"); |
| 4437 | return False; |
| 4438 | } |
| 4439 | break; |
| 4440 | |
| 4441 | default: |
| 4442 | vex_printf("dis_fp_multadd(PPC32)(opc1)\n"); |
| 4443 | return False; |
| 4444 | } |
| 4445 | |
| 4446 | putFReg( frD_addr, mkexpr(frD) ); |
| 4447 | return True; |
| 4448 | } |
| 4449 | |
| 4450 | |
| 4451 | |
| 4452 | /* |
| 4453 | Floating Point Compare Instructions |
| 4454 | */ |
| 4455 | static Bool dis_fp_cmp ( UInt theInstr ) |
| 4456 | { |
| 4457 | /* X-Form */ |
| 4458 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4459 | UChar crfD = toUChar((theInstr >> 23) & 0x7); /* theInstr[23:25] */ |
| 4460 | UChar b21to22 = toUChar((theInstr >> 21) & 0x3); /* theInstr[21:22] */ |
| 4461 | UChar frA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 4462 | UChar frB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4463 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4464 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 4465 | |
| 4466 | IRTemp ccIR = newTemp(Ity_I32); |
| 4467 | IRTemp ccPPC32 = newTemp(Ity_I32); |
| 4468 | |
| 4469 | #if 0 |
| 4470 | IRTemp cc_lt = newTemp(Ity_I32); |
| 4471 | IRTemp cc_gt = newTemp(Ity_I32); |
| 4472 | IRTemp cc_eq = newTemp(Ity_I32); |
| 4473 | IRTemp cc_un = newTemp(Ity_I32); |
| 4474 | #endif |
| 4475 | |
| 4476 | IRTemp frA = newTemp(Ity_F64); |
| 4477 | IRTemp frB = newTemp(Ity_F64); |
| 4478 | // IRExpr* irx; |
| 4479 | |
| 4480 | if (opc1 != 0x3F || b21to22 != 0 || b0 != 0) { |
| 4481 | vex_printf("dis_fp_cmp(PPC32)(instr)\n"); |
| 4482 | return False; |
| 4483 | } |
| 4484 | |
| 4485 | assign( frA, getFReg(frA_addr)); |
| 4486 | assign( frB, getFReg(frB_addr)); |
| 4487 | |
| 4488 | assign( ccIR, binop(Iop_CmpF64, mkexpr(frA), mkexpr(frB)) ); |
| 4489 | |
| 4490 | /* Map compare result from IR to PPC32 */ |
| 4491 | /* |
| 4492 | FP cmp result | PPC | IR |
| 4493 | -------------------------- |
| 4494 | UN | 0x1 | 0x45 |
| 4495 | EQ | 0x2 | 0x40 |
| 4496 | GT | 0x4 | 0x00 |
| 4497 | LT | 0x8 | 0x01 |
| 4498 | */ |
| 4499 | |
| 4500 | // ccPPC32 = Shl(1, (0x2 & ~(ccIR>>5)) || (0x1 & (XOR(ccIR, ccIR>>6)))) |
| 4501 | assign( |
| 4502 | ccPPC32, |
| 4503 | binop(Iop_Shl32, mkU32(1), |
| 4504 | unop(Iop_32to8, |
| 4505 | binop(Iop_Or32, |
| 4506 | binop(Iop_And32, mkU32(2), |
| 4507 | unop(Iop_Not32, |
| 4508 | binop(Iop_Shr32, mkexpr(ccIR), mkU8(5)))), |
| 4509 | binop(Iop_And32, mkU32(1), |
| 4510 | binop(Iop_Xor32, mkexpr(ccIR), |
| 4511 | binop(Iop_Shr32, mkexpr(ccIR), mkU8(6))))))) |
| 4512 | ); |
| 4513 | |
| 4514 | putCR0( crfD, unop( Iop_32to8, |
| 4515 | binop(Iop_And32, mkexpr(ccPPC32), mkU32(1))) ); |
| 4516 | putCR321( crfD, unop( Iop_32to8, |
| 4517 | binop(Iop_And32, mkexpr(ccPPC32), mkU32(7<<1))) ); |
| 4518 | |
| 4519 | // CAB: Useful to support writing cc to FPSCR->FPCC ? |
| 4520 | // putReg_field( PPC32_SPR_FPSCR, mkexpr(ccPPC32), 3 ); |
| 4521 | |
| 4522 | // Note: Differences between fcmpu and fcmpo are only |
| 4523 | // in exception flag settings, which aren't supported anyway... |
| 4524 | opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4525 | switch (opc2) { |
| 4526 | case 0x000: // fcmpu (Floating Compare Unordered, PPC32 p403) |
| 4527 | DIP("fcmpu crf%d,fr%d,fr%d\n", crfD, frA_addr, frB_addr); |
| 4528 | break; |
| 4529 | |
| 4530 | case 0x020: // fcmpo (Floating Compare Ordered, PPC32 p402) |
| 4531 | DIP("fcmpo crf%d,fr%d,fr%d\n", crfD, frA_addr, frB_addr); |
| 4532 | break; |
| 4533 | default: |
| 4534 | vex_printf("dis_fp_cmp(PPC32)(opc2)\n"); |
| 4535 | return False; |
| 4536 | } |
| 4537 | return True; |
| 4538 | } |
| 4539 | |
| 4540 | |
| 4541 | |
| 4542 | /* |
| 4543 | Floating Point Rounding/Conversion Instructions |
| 4544 | */ |
| 4545 | static Bool dis_fp_round ( UInt theInstr ) |
| 4546 | { |
| 4547 | /* X-Form */ |
| 4548 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4549 | UChar frD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4550 | UChar b16to20 = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 4551 | UChar frB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4552 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4553 | UChar flag_Rc = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 4554 | |
| 4555 | IRTemp frD = newTemp(Ity_F64); |
| 4556 | IRTemp frB = newTemp(Ity_F64); |
| 4557 | IRTemp r_tmp = newTemp(Ity_I32); |
| 4558 | |
| 4559 | if (opc1 != 0x3F || b16to20 != 0) { |
| 4560 | vex_printf("dis_fp_round(PPC32)(instr)\n"); |
| 4561 | return False; |
| 4562 | } |
| 4563 | |
| 4564 | assign( frB, getFReg(frB_addr)); |
| 4565 | |
| 4566 | opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4567 | |
| 4568 | switch (opc2) { |
| 4569 | |
| 4570 | case 0x00C: // frsp (Floating Round to Single, PPC32 p423) |
| 4571 | DIP("frsp%s fr%d,fr%d\n", flag_Rc ? "." : "", frD_addr, frB_addr); |
| 4572 | assign( frD, roundToSgl( mkexpr(frB) )); |
| 4573 | break; |
| 4574 | |
sewardj | 5f63c0c | 2005-09-09 10:36:55 +0000 | [diff] [blame] | 4575 | case 0x00E: // fctiw (Floating Conv to Int, PPC32 p404) |
| 4576 | DIP("fctiw%s fr%d,fr%d\n", flag_Rc ? "." : "", frD_addr, frB_addr); |
| 4577 | assign( r_tmp, binop(Iop_F64toI32, get_roundingmode(), mkexpr(frB)) ); |
| 4578 | assign( frD, unop( Iop_ReinterpI64asF64, |
| 4579 | unop( Iop_32Uto64, mkexpr(r_tmp)))); |
| 4580 | break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4581 | |
| 4582 | case 0x00F: // fctiwz (Floating Conv to Int, Round to Zero, PPC32 p405) |
| 4583 | DIP("fctiwz%s fr%d,fr%d\n", flag_Rc ? "." : "", frD_addr, frB_addr); |
| 4584 | assign( r_tmp, binop(Iop_F64toI32, mkU32(0x3), mkexpr(frB)) ); |
| 4585 | assign( frD, unop( Iop_ReinterpI64asF64, |
| 4586 | unop( Iop_32Uto64, mkexpr(r_tmp)))); |
| 4587 | break; |
| 4588 | |
| 4589 | default: |
| 4590 | vex_printf("dis_fp_round(PPC32)(opc2)\n"); |
| 4591 | return False; |
| 4592 | } |
| 4593 | |
| 4594 | putFReg( frD_addr, mkexpr(frD) ); |
| 4595 | return True; |
| 4596 | } |
| 4597 | |
| 4598 | |
| 4599 | |
| 4600 | /* |
| 4601 | Floating Point Move Instructions |
| 4602 | */ |
| 4603 | static Bool dis_fp_move ( UInt theInstr ) |
| 4604 | { |
| 4605 | /* X-Form */ |
| 4606 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4607 | UChar frD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4608 | UChar b16to20 = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 4609 | UChar frB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4610 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4611 | UChar flag_Rc = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 4612 | |
| 4613 | IRTemp frD = newTemp(Ity_F64); |
| 4614 | IRTemp frB = newTemp(Ity_F64); |
| 4615 | |
| 4616 | if (opc1 != 0x3F || b16to20 != 0) { |
| 4617 | vex_printf("dis_fp_move(PPC32)(instr)\n"); |
| 4618 | return False; |
| 4619 | } |
| 4620 | |
| 4621 | assign( frB, getFReg(frB_addr)); |
| 4622 | |
| 4623 | opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4624 | |
| 4625 | switch (opc2) { |
| 4626 | |
| 4627 | case 0x028: // fneg (Floating Negate, PPC32 p416) |
| 4628 | DIP("fneg%s fr%d,fr%d\n", flag_Rc ? "." : "", frD_addr, frB_addr); |
| 4629 | assign( frD, unop( Iop_NegF64, mkexpr(frB) )); |
| 4630 | break; |
| 4631 | |
| 4632 | case 0x048: // fmr (Floating Move Register, PPC32 p410) |
| 4633 | DIP("fmr%s fr%d,fr%d\n", flag_Rc ? "." : "", frD_addr, frB_addr); |
| 4634 | assign( frD, mkexpr(frB) ); |
| 4635 | break; |
| 4636 | |
sewardj | 0e2cc67 | 2005-07-29 21:58:51 +0000 | [diff] [blame] | 4637 | case 0x088: // fnabs (Floating Negative Absolute Value, PPC32 p415) |
| 4638 | DIP("fnabs%s fr%d,fr%d\n", flag_Rc ? "." : "", frD_addr, frB_addr); |
| 4639 | assign( frD, unop( Iop_NegF64, unop( Iop_AbsF64, mkexpr(frB) ))); |
| 4640 | break; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4641 | |
| 4642 | case 0x108: // fabs (Floating Absolute Value, PPC32 p399) |
| 4643 | DIP("fabs%s fr%d,fr%d\n", flag_Rc ? "." : "", frD_addr, frB_addr); |
| 4644 | assign( frD, unop( Iop_AbsF64, mkexpr(frB) )); |
| 4645 | break; |
| 4646 | |
| 4647 | default: |
| 4648 | vex_printf("dis_fp_move(PPC32)(opc2)\n"); |
| 4649 | return False; |
| 4650 | } |
| 4651 | |
| 4652 | putFReg( frD_addr, mkexpr(frD) ); |
| 4653 | return True; |
| 4654 | } |
| 4655 | |
| 4656 | |
| 4657 | |
| 4658 | /* |
| 4659 | Floating Point Status/Control Register Instructions |
| 4660 | */ |
| 4661 | static Bool dis_fp_scr ( UInt theInstr ) |
| 4662 | { |
| 4663 | /* X-Form */ |
| 4664 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4665 | /* Too many forms - see each switch case */ |
| 4666 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4667 | UChar flag_Rc = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 4668 | |
| 4669 | if (opc1 != 0x3F) { |
| 4670 | vex_printf("dis_fp_scr(PPC32)(instr)\n"); |
| 4671 | return False; |
| 4672 | } |
| 4673 | |
| 4674 | switch (opc2) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 4675 | //zz case 0x026: { // mtfsb1 (Move to FPSCR Bit 1, PPC32 p479) |
| 4676 | //zz // Bit crbD of the FPSCR is set. |
| 4677 | //zz UChar crbD = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4678 | //zz UInt b11to20 = (theInstr >> 11) & 0x3FF; /* theInstr[11:20] */ |
| 4679 | //zz |
| 4680 | //zz if (b11to20 != 0) { |
| 4681 | //zz vex_printf("dis_fp_scr(PPC32)(instr,mtfsb1)\n"); |
| 4682 | //zz return False; |
| 4683 | //zz } |
| 4684 | //zz DIP("mtfsb1%s crb%d \n", flag_Rc ? "." : "", crbD); |
| 4685 | //zz putReg_bit( PPC32_SPR_FPSCR, mkU32(1), 31-crbD ); |
| 4686 | //zz break; |
| 4687 | //zz } |
| 4688 | //zz |
| 4689 | //zz case 0x040: { // mcrfs (Move to Condition Register from FPSCR, PPC32 p465) |
| 4690 | //zz UChar crfD = toUChar((theInstr >> 23) & 0x7); /* theInstr[23:25] */ |
| 4691 | //zz UChar b21to22 = toUChar((theInstr >> 21) & 0x3); /* theInstr[21:22] */ |
| 4692 | //zz UChar crfS = toUChar((theInstr >> 18) & 0x7); /* theInstr[18:20] */ |
| 4693 | //zz UChar b11to17 = toUChar((theInstr >> 11) & 0x7F); /* theInstr[11:17] */ |
| 4694 | //zz |
| 4695 | //zz IRTemp tmp = newTemp(Ity_I32); |
| 4696 | //zz |
| 4697 | //zz if (b21to22 != 0 || b11to17 != 0 || flag_Rc != 0) { |
| 4698 | //zz vex_printf("dis_fp_scr(PPC32)(instr,mcrfs)\n"); |
| 4699 | //zz return False; |
| 4700 | //zz } |
| 4701 | //zz DIP("mcrfs crf%d,crf%d\n", crfD, crfS); |
| 4702 | //zz assign( tmp, getReg_field( PPC32_SPR_FPSCR, 7-crfS ) ); |
| 4703 | //zz putReg_field( PPC32_SPR_CR, mkexpr(tmp), 7-crfD ); |
| 4704 | //zz break; |
| 4705 | //zz } |
sewardj | 0e2cc67 | 2005-07-29 21:58:51 +0000 | [diff] [blame] | 4706 | |
| 4707 | case 0x046: { // mtfsb0 (Move to FPSCR Bit 0, PPC32 p478) |
| 4708 | // Bit crbD of the FPSCR is cleared. |
| 4709 | UChar crbD = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4710 | UInt b11to20 = (theInstr >> 11) & 0x3FF; /* theInstr[11:20] */ |
| 4711 | |
| 4712 | if (b11to20 != 0) { |
| 4713 | vex_printf("dis_fp_scr(PPC32)(instr,mtfsb0)\n"); |
| 4714 | return False; |
| 4715 | } |
| 4716 | DIP("mtfsb0%s crb%d\n", flag_Rc ? "." : "", crbD); |
| 4717 | putReg_bit( PPC32_SPR_FPSCR, mkU32(0), 31-crbD ); |
| 4718 | break; |
| 4719 | } |
| 4720 | |
| 4721 | case 0x086: { // mtfsfi (Move to FPSCR Field Immediate, PPC32 p481) |
| 4722 | UChar crfD = toUChar((theInstr >> 23) & 0x7); /* theInstr[23:25] */ |
| 4723 | UChar b16to22 = toUChar((theInstr >> 16) & 0x7F); /* theInstr[16:22] */ |
| 4724 | UChar IMM = toUChar((theInstr >> 12) & 0xF); /* theInstr[11:15] */ |
| 4725 | UChar b11 = toUChar((theInstr >> 11) & 0x1); /* theInstr[11] */ |
| 4726 | |
| 4727 | if (b16to22 != 0 || b11 != 0) { |
| 4728 | vex_printf("dis_fp_scr(PPC32)(instr,mtfsfi)\n"); |
| 4729 | return False; |
| 4730 | } |
| 4731 | DIP("mtfsfi%s crf%d,%d\n", flag_Rc ? "." : "", crfD, IMM); |
| 4732 | putReg_field( PPC32_SPR_FPSCR, mkU32(IMM), 7-crfD ); |
| 4733 | break; |
| 4734 | } |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 4735 | |
| 4736 | case 0x247: { // mffs (Move from FPSCR, PPC32 p468) |
| 4737 | UChar frD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4738 | UInt b11to20 = (theInstr >> 11) & 0x3FF; /* theInstr[11:20] */ |
| 4739 | |
| 4740 | if (b11to20 != 0) { |
| 4741 | vex_printf("dis_fp_scr(PPC32)(instr,mffs)\n"); |
| 4742 | return False; |
| 4743 | } |
| 4744 | DIP("mffs%s fr%d\n", flag_Rc ? "." : "", frD_addr); |
| 4745 | putFReg( frD_addr, unop( Iop_ReinterpI64asF64, |
| 4746 | unop( Iop_32Uto64, |
| 4747 | getReg_masked( PPC32_SPR_FPSCR, 0x3 ) ))); |
| 4748 | break; |
| 4749 | } |
| 4750 | |
| 4751 | case 0x2C7: { // mtfsf (Move to FPSCR Fields, PPC32 p480) |
| 4752 | UChar b25 = toUChar((theInstr >> 25) & 0x1); /* theInstr[25] */ |
| 4753 | UChar FM = toUChar((theInstr >> 17) & 0xFF); /* theInstr[17:24] */ |
| 4754 | UChar b16 = toUChar((theInstr >> 16) & 0x1); /* theInstr[16] */ |
| 4755 | UChar frB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4756 | IRTemp frB = newTemp(Ity_F64); |
| 4757 | IRTemp rB_32 = newTemp(Ity_I32); |
| 4758 | Int mask = 0; |
| 4759 | Int i = 0; |
| 4760 | |
| 4761 | if (b25 != 0 || b16 != 0) { |
| 4762 | vex_printf("dis_fp_scr(PPC32)(instr,mtfsf)\n"); |
| 4763 | return False; |
| 4764 | } |
| 4765 | DIP("mtfsf%s %d,fr%d\n", flag_Rc ? "." : "", FM, frB_addr); |
| 4766 | assign( frB, getFReg(frB_addr)); |
| 4767 | assign( rB_32, unop( Iop_64to32, |
| 4768 | unop( Iop_ReinterpF64asI64, mkexpr(frB) ))); |
| 4769 | // Build 32bit mask from FM: |
| 4770 | for (i=0; i<8; i++) { |
| 4771 | if ((FM & (1<<(7-i))) == 1) { |
| 4772 | mask |= 0xF << (7-i); |
| 4773 | } |
| 4774 | } |
| 4775 | putReg_masked( PPC32_SPR_FPSCR, mkexpr(rB_32), mask ); |
| 4776 | break; |
| 4777 | } |
| 4778 | |
| 4779 | default: |
| 4780 | vex_printf("dis_fp_scr(PPC32)(opc2)\n"); |
| 4781 | return False; |
| 4782 | } |
| 4783 | return True; |
| 4784 | } |
| 4785 | |
| 4786 | |
| 4787 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4788 | /*------------------------------------------------------------*/ |
| 4789 | /*--- AltiVec Instruction Translation ---*/ |
| 4790 | /*------------------------------------------------------------*/ |
| 4791 | |
| 4792 | /* |
| 4793 | Altivec Cache Control Instructions (Data Streams) |
| 4794 | */ |
| 4795 | static Bool dis_av_datastream ( UInt theInstr ) |
| 4796 | { |
| 4797 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4798 | UChar flag_T = toUChar((theInstr >> 25) & 0x1); /* theInstr[25] */ |
| 4799 | UChar flag_A = toUChar((theInstr >> 25) & 0x1); /* theInstr[25] */ |
| 4800 | UChar b23to24 = toUChar((theInstr >> 23) & 0x3); /* theInstr[23:24] */ |
| 4801 | UChar STRM = toUChar((theInstr >> 21) & 0x3); /* theInstr[21:22] */ |
| 4802 | UChar rA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 4803 | UChar rB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4804 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4805 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 4806 | |
| 4807 | if (opc1 != 0x1F || b23to24 != 0 || b0 != 0) { |
| 4808 | vex_printf("dis_av_datastream(PPC32)(instr)\n"); |
| 4809 | return False; |
| 4810 | } |
| 4811 | |
| 4812 | switch (opc2) { |
| 4813 | case 0x156: // dst (Data Stream Touch, AV p115) |
| 4814 | DIP("dst%s r%d,r%d,%d\n", flag_T ? "t" : "", rA_addr, rB_addr, STRM); |
| 4815 | DIP(" => not implemented\n"); |
| 4816 | return False; |
| 4817 | |
| 4818 | case 0x176: // dstst (Data Stream Touch for Store, AV p117) |
| 4819 | DIP("dstst%s r%d,r%d,%d\n", flag_T ? "t" : "", rA_addr, rB_addr, STRM); |
| 4820 | DIP(" => not implemented\n"); |
| 4821 | return False; |
| 4822 | |
| 4823 | case 0x336: // dss (Data Stream Stop, AV p114) |
| 4824 | if (rA_addr != 0 || rB_addr != 0) { |
| 4825 | vex_printf("dis_av_datastream(PPC32)(opc2,dst)\n"); |
| 4826 | return False; |
| 4827 | } |
| 4828 | if (flag_A == 0) { |
| 4829 | DIP("dss %d\n", STRM); |
| 4830 | DIP(" => not implemented\n"); |
| 4831 | } else { |
| 4832 | DIP("dssall\n"); |
| 4833 | DIP(" => not implemented\n"); |
| 4834 | } |
| 4835 | return False; |
| 4836 | |
| 4837 | default: |
| 4838 | vex_printf("dis_av_datastream(PPC32)(opc2)\n"); |
| 4839 | return False; |
| 4840 | } |
| 4841 | return True; |
| 4842 | } |
| 4843 | |
| 4844 | /* |
| 4845 | AltiVec Processor Control Instructions |
| 4846 | */ |
| 4847 | static Bool dis_av_procctl ( UInt theInstr ) |
| 4848 | { |
| 4849 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4850 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4851 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 4852 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4853 | UInt opc2 = (theInstr >> 0) & 0x7FF; /* theInstr[0:10] */ |
| 4854 | |
| 4855 | if (opc1 != 0x4) { |
| 4856 | vex_printf("dis_av_procctl(PPC32)(instr)\n"); |
| 4857 | return False; |
| 4858 | } |
| 4859 | |
| 4860 | switch (opc2) { |
| 4861 | case 0x604: // mfvscr (Move from VSCR, AV p129) |
| 4862 | if (vA_addr != 0 || vB_addr != 0) { |
| 4863 | vex_printf("dis_av_procctl(PPC32)(opc2,dst)\n"); |
| 4864 | return False; |
| 4865 | } |
| 4866 | DIP("mfvscr v%d\n", vD_addr); |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 4867 | putVReg( vD_addr, unop(Iop_32UtoV128, getSPR( PPC32_SPR_VSCR )) ); |
| 4868 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4869 | |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 4870 | case 0x644: { // mtvscr (Move to VSCR, AV p130) |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4871 | if (vD_addr != 0 || vA_addr != 0) { |
| 4872 | vex_printf("dis_av_procctl(PPC32)(opc2,dst)\n"); |
| 4873 | return False; |
| 4874 | } |
| 4875 | DIP("mtvscr v%d\n", vB_addr); |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 4876 | IRTemp vB = newTemp(Ity_V128); |
| 4877 | assign( vB, getVReg(vB_addr)); |
| 4878 | putSPR( PPC32_SPR_VSCR, unop(Iop_V128to32, mkexpr(vB)) ); |
| 4879 | break; |
| 4880 | } |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4881 | default: |
| 4882 | vex_printf("dis_av_procctl(PPC32)(opc2)\n"); |
| 4883 | return False; |
| 4884 | } |
| 4885 | return True; |
| 4886 | } |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 4887 | |
| 4888 | /* |
| 4889 | AltiVec Load Instructions |
| 4890 | */ |
| 4891 | static Bool dis_av_load ( UInt theInstr ) |
| 4892 | { |
| 4893 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4894 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4895 | UChar rA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 4896 | UChar rB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 4897 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 4898 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 4899 | |
cerion | a50fde5 | 2005-07-01 21:16:10 +0000 | [diff] [blame] | 4900 | IRTemp EA = newTemp(Ity_I32); |
| 4901 | IRTemp EA_aligned = newTemp(Ity_I32); |
| 4902 | |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 4903 | if (opc1 != 0x1F || b0 != 0) { |
| 4904 | vex_printf("dis_av_load(PPC32)(instr)\n"); |
| 4905 | return False; |
| 4906 | } |
| 4907 | |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 4908 | assign( EA, ea_standard(rA_addr, rB_addr) ); |
cerion | a50fde5 | 2005-07-01 21:16:10 +0000 | [diff] [blame] | 4909 | |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 4910 | switch (opc2) { |
| 4911 | |
cerion | 6f6c6a0 | 2005-09-13 18:41:09 +0000 | [diff] [blame] | 4912 | case 0x006: { // lvsl (Load Vector for Shift Left, AV p123) |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4913 | DIP("lvsl v%d,r%d,r%d\n", vD_addr, rA_addr, rB_addr); |
cerion | 6f6c6a0 | 2005-09-13 18:41:09 +0000 | [diff] [blame] | 4914 | IRExpr** args = mkIRExprVec_3(mkU32(vD_addr), mkexpr(EA), mkU32(0)); |
| 4915 | IRDirty* d = unsafeIRDirty_0_N ( |
| 4916 | 0/*regparms*/, |
| 4917 | "ppc32g_dirtyhelper_LVS", |
| 4918 | &ppc32g_dirtyhelper_LVS, |
| 4919 | args ); |
| 4920 | /* declare guest state effects */ |
| 4921 | d->needsBBP = True; |
| 4922 | d->nFxState = 1; |
| 4923 | d->fxState[0].fx = Ifx_Write; |
| 4924 | d->fxState[0].offset = vectorGuestRegOffset(vD_addr); |
| 4925 | d->fxState[0].size = sizeof(U128); |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4926 | |
cerion | 6f6c6a0 | 2005-09-13 18:41:09 +0000 | [diff] [blame] | 4927 | /* execute the dirty call, side-effecting guest state */ |
| 4928 | stmt( IRStmt_Dirty(d) ); |
| 4929 | break; |
| 4930 | } |
| 4931 | case 0x026: { // lvsr (Load Vector for Shift Right, AV p125) |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4932 | DIP("lvsr v%d,r%d,r%d\n", vD_addr, rA_addr, rB_addr); |
cerion | 6f6c6a0 | 2005-09-13 18:41:09 +0000 | [diff] [blame] | 4933 | IRExpr** args = mkIRExprVec_3(mkU32(vD_addr), mkexpr(EA), mkU32(1)); |
| 4934 | IRDirty* d = unsafeIRDirty_0_N ( |
| 4935 | 0/*regparms*/, |
| 4936 | "ppc32g_dirtyhelper_LVS", |
| 4937 | &ppc32g_dirtyhelper_LVS, |
| 4938 | args ); |
| 4939 | /* declare guest state effects */ |
| 4940 | d->needsBBP = True; |
| 4941 | d->nFxState = 1; |
| 4942 | d->fxState[0].fx = Ifx_Write; |
| 4943 | d->fxState[0].offset = vectorGuestRegOffset(vD_addr); |
| 4944 | d->fxState[0].size = sizeof(U128); |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4945 | |
cerion | 6f6c6a0 | 2005-09-13 18:41:09 +0000 | [diff] [blame] | 4946 | /* execute the dirty call, side-effecting guest state */ |
| 4947 | stmt( IRStmt_Dirty(d) ); |
| 4948 | break; |
| 4949 | } |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4950 | case 0x007: // lvebx (Load Vector Element Byte Indexed, AV p119) |
| 4951 | DIP("lvebx v%d,r%d,r%d\n", vD_addr, rA_addr, rB_addr); |
cerion | 61c9274 | 2005-09-14 22:59:26 +0000 | [diff] [blame] | 4952 | /* loads addressed byte into vector[EA[0:3] |
| 4953 | since all other destination bytes are undefined, |
| 4954 | can simply load entire vector from 16-aligned EA */ |
| 4955 | assign( EA_aligned, binop( Iop_And32, mkexpr(EA), mkU32(0xFFFFFFF0) )); |
| 4956 | putVReg( vD_addr, loadBE(Ity_V128, mkexpr(EA_aligned)) ); |
| 4957 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4958 | |
| 4959 | case 0x027: // lvehx (Load Vector Element Half Word Indexed, AV p121) |
| 4960 | DIP("lvehx v%d,r%d,r%d\n", vD_addr, rA_addr, rB_addr); |
cerion | 61c9274 | 2005-09-14 22:59:26 +0000 | [diff] [blame] | 4961 | /* see note for lvebx */ |
| 4962 | assign( EA_aligned, binop( Iop_And32, mkexpr(EA), mkU32(0xFFFFFFF0) )); |
| 4963 | putVReg( vD_addr, loadBE(Ity_V128, mkexpr(EA_aligned)) ); |
| 4964 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4965 | |
| 4966 | case 0x047: // lvewx (Load Vector Element Word Indexed, AV p122) |
| 4967 | DIP("lvewx v%d,r%d,r%d\n", vD_addr, rA_addr, rB_addr); |
cerion | 61c9274 | 2005-09-14 22:59:26 +0000 | [diff] [blame] | 4968 | /* see note for lvebx */ |
| 4969 | assign( EA_aligned, binop( Iop_And32, mkexpr(EA), mkU32(0xFFFFFFF0) )); |
| 4970 | putVReg( vD_addr, loadBE(Ity_V128, mkexpr(EA_aligned)) ); |
| 4971 | break; |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 4972 | |
| 4973 | case 0x067: // lvx (Load Vector Indexed, AV p127) |
| 4974 | DIP("lvx v%d,r%d,r%d\n", vD_addr, rA_addr, rB_addr); |
cerion | a50fde5 | 2005-07-01 21:16:10 +0000 | [diff] [blame] | 4975 | assign( EA_aligned, binop( Iop_And32, mkexpr(EA), mkU32(0xFFFFFFF0) )); |
| 4976 | putVReg( vD_addr, loadBE(Ity_V128, mkexpr(EA_aligned)) ); |
| 4977 | break; |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 4978 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 4979 | case 0x167: // lvxl (Load Vector Indexed LRU, AV p128) |
| 4980 | // XXX: lvxl gives explicit control over cache block replacement |
| 4981 | DIP("lvxl v%d,r%d,r%d\n", vD_addr, rA_addr, rB_addr); |
| 4982 | DIP(" => not implemented\n"); |
| 4983 | return False; |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 4984 | |
| 4985 | default: |
| 4986 | vex_printf("dis_av_load(PPC32)(opc2)\n"); |
| 4987 | return False; |
| 4988 | } |
| 4989 | return True; |
| 4990 | } |
| 4991 | |
| 4992 | /* |
| 4993 | AltiVec Store Instructions |
| 4994 | */ |
| 4995 | static Bool dis_av_store ( UInt theInstr ) |
| 4996 | { |
| 4997 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 4998 | UChar vS_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 4999 | UChar rA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5000 | UChar rB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 5001 | UInt opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 5002 | UChar b0 = toUChar((theInstr >> 0) & 1); /* theInstr[0] */ |
| 5003 | |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 5004 | // IRTemp rA = newTemp(Ity_I32); |
| 5005 | // IRTemp rB = newTemp(Ity_I32); |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 5006 | IRTemp vS = newTemp(Ity_V128); |
| 5007 | IRTemp EA = newTemp(Ity_I32); |
| 5008 | IRTemp EA_aligned = newTemp(Ity_I32); |
| 5009 | |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 5010 | // assign( rA, getIReg(rA_addr)); |
| 5011 | // assign( rB, getIReg(rB_addr)); |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 5012 | assign( vS, getVReg(vS_addr)); |
| 5013 | |
sewardj | afe8583 | 2005-09-09 10:25:39 +0000 | [diff] [blame] | 5014 | assign( EA, ea_standard(rA_addr, rB_addr) ); |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 5015 | |
| 5016 | if (opc1 != 0x1F || b0 != 0) { |
| 5017 | vex_printf("dis_av_store(PPC32)(instr)\n"); |
| 5018 | return False; |
| 5019 | } |
| 5020 | |
| 5021 | switch (opc2) { |
cerion | 61c9274 | 2005-09-14 22:59:26 +0000 | [diff] [blame] | 5022 | case 0x087: { // stvebx (Store Vector Byte Indexed, AV p131) |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5023 | DIP("stvebx v%d,r%d,r%d\n", vS_addr, rA_addr, rB_addr); |
cerion | 61c9274 | 2005-09-14 22:59:26 +0000 | [diff] [blame] | 5024 | IRTemp eb = newTemp(Ity_I8); |
| 5025 | IRTemp idx = newTemp(Ity_I8); |
| 5026 | assign( eb, binop(Iop_And8, mkU8(0xF), |
| 5027 | unop(Iop_32to8, mkexpr(EA) )) ); |
| 5028 | assign( idx, binop(Iop_Shl8, binop(Iop_Sub8, mkU8(15), mkexpr(eb)), |
| 5029 | mkU8(3)) ); |
| 5030 | storeBE( mkexpr(EA), |
| 5031 | unop(Iop_32to8, unop(Iop_V128to32, |
| 5032 | binop(Iop_ShrV128, mkexpr(vS), mkexpr(idx)))) ); |
| 5033 | break; |
| 5034 | } |
| 5035 | case 0x0A7: { // stvehx (Store Vector Half Word Indexed, AV p132) |
| 5036 | IRTemp eb = newTemp(Ity_I8); |
| 5037 | IRTemp idx = newTemp(Ity_I8); |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5038 | DIP("stvehx v%d,r%d,r%d\n", vS_addr, rA_addr, rB_addr); |
cerion | 61c9274 | 2005-09-14 22:59:26 +0000 | [diff] [blame] | 5039 | assign( EA_aligned, binop( Iop_And32, mkexpr(EA), mkU32(0xFFFFFFFE) )); |
| 5040 | assign( eb, binop(Iop_And8, mkU8(0xF), |
| 5041 | unop(Iop_32to8, mkexpr(EA_aligned) )) ); |
| 5042 | assign( idx, binop(Iop_Shl8, binop(Iop_Sub8, mkU8(14), mkexpr(eb)), |
| 5043 | mkU8(3)) ); |
| 5044 | storeBE( mkexpr(EA_aligned), |
| 5045 | unop(Iop_32to16, unop(Iop_V128to32, |
| 5046 | binop(Iop_ShrV128, mkexpr(vS), mkexpr(idx)))) ); |
| 5047 | break; |
| 5048 | } |
| 5049 | case 0x0C7: { // stvewx (Store Vector Word Indexed, AV p133) |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5050 | DIP("stvewx v%d,r%d,r%d\n", vS_addr, rA_addr, rB_addr); |
cerion | 61c9274 | 2005-09-14 22:59:26 +0000 | [diff] [blame] | 5051 | IRTemp eb = newTemp(Ity_I8); |
| 5052 | IRTemp idx = newTemp(Ity_I8); |
| 5053 | assign( EA_aligned, binop( Iop_And32, mkexpr(EA), mkU32(0xFFFFFFFC) )); |
| 5054 | assign( eb, binop(Iop_And8, mkU8(0xF), |
| 5055 | unop(Iop_32to8, mkexpr(EA_aligned) )) ); |
| 5056 | assign( idx, binop(Iop_Shl8, binop(Iop_Sub8, mkU8(12), mkexpr(eb)), |
| 5057 | mkU8(3)) ); |
| 5058 | storeBE( mkexpr(EA_aligned), |
| 5059 | unop(Iop_V128to32, |
| 5060 | binop(Iop_ShrV128, mkexpr(vS), mkexpr(idx))) ); |
| 5061 | break; |
| 5062 | } |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5063 | |
| 5064 | // EA_aligned = EA & 0xFFFF_FFFC |
| 5065 | // eb = EA_aligned & 0xF; |
| 5066 | // STORE(vS[eb*8:eb*8+31], 4, EA_aligned); |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 5067 | |
| 5068 | case 0x0E7: // stvx (Store Vector Indexed, AV p134) |
| 5069 | DIP("stvx v%d,r%d,r%d\n", vS_addr, rA_addr, rB_addr); |
| 5070 | assign( EA_aligned, binop( Iop_And32, mkexpr(EA), mkU32(0xFFFFFFF0) )); |
| 5071 | storeBE( mkexpr(EA_aligned), mkexpr(vS) ); |
| 5072 | break; |
| 5073 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5074 | case 0x1E7: // stvxl (Store Vector Indexed LRU, AV p135) |
| 5075 | // XXX: stvxl can give explicit control over cache block replacement |
| 5076 | DIP("stvxl v%d,r%d,r%d\n", vS_addr, rA_addr, rB_addr); |
| 5077 | DIP(" => not implemented\n"); |
| 5078 | return False; |
| 5079 | |
| 5080 | // EA_aligned = EA & 0xFFFF_FFF0; |
| 5081 | // STORE(vS, 16, EA); |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 5082 | |
| 5083 | default: |
| 5084 | vex_printf("dis_av_store(PPC32)(opc2)\n"); |
| 5085 | return False; |
| 5086 | } |
| 5087 | return True; |
| 5088 | } |
| 5089 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5090 | /* |
| 5091 | AltiVec Arithmetic Instructions |
| 5092 | */ |
| 5093 | static Bool dis_av_arith ( UInt theInstr ) |
| 5094 | { |
| 5095 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 5096 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 5097 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5098 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 5099 | UInt opc2 = (theInstr >> 0) & 0x7FF; /* theInstr[0:10] */ |
| 5100 | |
cerion | d3e5241 | 2005-09-14 21:15:40 +0000 | [diff] [blame] | 5101 | IRTemp vA = newTemp(Ity_V128); |
| 5102 | IRTemp vB = newTemp(Ity_V128); |
| 5103 | assign( vA, getVReg(vA_addr)); |
| 5104 | assign( vB, getVReg(vB_addr)); |
| 5105 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5106 | if (opc1 != 0x4) { |
| 5107 | vex_printf("dis_av_arith(PPC32)(opc1 != 0x4)\n"); |
| 5108 | return False; |
| 5109 | } |
| 5110 | |
| 5111 | switch (opc2) { |
| 5112 | /* Add */ |
cerion | d3e5241 | 2005-09-14 21:15:40 +0000 | [diff] [blame] | 5113 | case 0x180: { // vaddcuw (Add Carryout Unsigned Word, AV p136) |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5114 | DIP("vaddcuw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5115 | /* unsigned_ov(x+y) = (y >u not(x)) */ |
cerion | d3e5241 | 2005-09-14 21:15:40 +0000 | [diff] [blame] | 5116 | putVReg( vD_addr, binop(Iop_ShrN32x4, |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5117 | binop(Iop_CmpGT32Ux4, mkexpr(vB), |
| 5118 | unop(Iop_NotV128, mkexpr(vA))), |
cerion | d3e5241 | 2005-09-14 21:15:40 +0000 | [diff] [blame] | 5119 | mkU8(31)) ); |
| 5120 | break; |
| 5121 | } |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5122 | case 0x000: // vaddubm (Add Unsigned Byte Modulo, AV p141) |
| 5123 | DIP("vaddubm v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5124 | putVReg( vD_addr, binop(Iop_Add8x16, mkexpr(vA), mkexpr(vB)) ); |
| 5125 | break; |
| 5126 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5127 | case 0x040: // vadduhm (Add Unsigned Half Word Modulo, AV p143) |
| 5128 | DIP("vadduhm v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5129 | putVReg( vD_addr, binop(Iop_Add16x8, mkexpr(vA), mkexpr(vB)) ); |
| 5130 | break; |
| 5131 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5132 | case 0x080: // vadduwm (Add Unsigned Word Modulo, AV p145) |
| 5133 | DIP("vadduwm v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5134 | putVReg( vD_addr, binop(Iop_Add32x4, mkexpr(vA), mkexpr(vB)) ); |
| 5135 | break; |
| 5136 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5137 | case 0x200: // vaddubs (Add Unsigned Byte Saturate, AV p142) |
| 5138 | DIP("vaddubs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5139 | putVReg( vD_addr, binop(Iop_QAdd8Ux16, mkexpr(vA), mkexpr(vB)) ); |
| 5140 | // TODO: set VSCR[SAT], perhaps via new primop: Iop_SatOfQAdd8Ux16 |
| 5141 | break; |
| 5142 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5143 | case 0x240: // vadduhs (Add Unsigned Half Word Saturate, AV p144) |
| 5144 | DIP("vadduhs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5145 | putVReg( vD_addr, binop(Iop_QAdd16Ux8, mkexpr(vA), mkexpr(vB)) ); |
| 5146 | // TODO: set VSCR[SAT] |
| 5147 | break; |
| 5148 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5149 | case 0x280: // vadduws (Add Unsigned Word Saturate, AV p146) |
| 5150 | DIP("vadduws v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5151 | putVReg( vD_addr, binop(Iop_QAdd32Ux4, mkexpr(vA), mkexpr(vB)) ); |
| 5152 | // TODO: set VSCR[SAT] |
| 5153 | break; |
| 5154 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5155 | case 0x300: // vaddsbs (Add Signed Byte Saturate, AV p138) |
| 5156 | DIP("vaddsbs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5157 | putVReg( vD_addr, binop(Iop_QAdd8Sx16, mkexpr(vA), mkexpr(vB)) ); |
| 5158 | // TODO: set VSCR[SAT] |
| 5159 | break; |
| 5160 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5161 | case 0x340: // vaddshs (Add Signed Half Word Saturate, AV p139) |
| 5162 | DIP("vaddshs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5163 | putVReg( vD_addr, binop(Iop_QAdd16Sx8, mkexpr(vA), mkexpr(vB)) ); |
| 5164 | // TODO: set VSCR[SAT] |
| 5165 | break; |
| 5166 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5167 | case 0x380: // vaddsws (Add Signed Word Saturate, AV p140) |
| 5168 | DIP("vaddsws v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5169 | putVReg( vD_addr, binop(Iop_QAdd32Sx4, mkexpr(vA), mkexpr(vB)) ); |
| 5170 | // TODO: set VSCR[SAT] |
| 5171 | break; |
| 5172 | |
| 5173 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5174 | /* Subtract */ |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5175 | case 0x580: { // vsubcuw (Subtract Carryout Unsigned Word, AV p260) |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5176 | DIP("vsubcuw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5177 | /* unsigned_ov(x-y) = (y >u x) */ |
| 5178 | putVReg( vD_addr, binop(Iop_ShrN32x4, |
| 5179 | unop(Iop_NotV128, |
| 5180 | binop(Iop_CmpGT32Ux4, mkexpr(vB), |
| 5181 | mkexpr(vA))), |
| 5182 | mkU8(31)) ); |
| 5183 | break; |
| 5184 | } |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5185 | case 0x400: // vsububm (Subtract Unsigned Byte Modulo, AV p265) |
| 5186 | DIP("vsububm v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5187 | putVReg( vD_addr, binop(Iop_Sub8x16, mkexpr(vA), mkexpr(vB)) ); |
| 5188 | break; |
| 5189 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5190 | case 0x440: // vsubuhm (Subtract Unsigned Half Word Modulo, AV p267) |
| 5191 | DIP("vsubuhm v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5192 | putVReg( vD_addr, binop(Iop_Sub16x8, mkexpr(vA), mkexpr(vB)) ); |
| 5193 | break; |
| 5194 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5195 | case 0x480: // vsubuwm (Subtract Unsigned Word Modulo, AV p269) |
| 5196 | DIP("vsubuwm v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5197 | putVReg( vD_addr, binop(Iop_Sub32x4, mkexpr(vA), mkexpr(vB)) ); |
| 5198 | break; |
| 5199 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5200 | case 0x600: // vsububs (Subtract Unsigned Byte Saturate, AV p266) |
| 5201 | DIP("vsububs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5202 | putVReg( vD_addr, binop(Iop_QSub8Ux16, mkexpr(vA), mkexpr(vB)) ); |
| 5203 | // TODO: set VSCR[SAT] |
| 5204 | break; |
| 5205 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5206 | case 0x640: // vsubuhs (Subtract Unsigned Half Word Saturate, AV p268) |
| 5207 | DIP("vsubuhs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5208 | putVReg( vD_addr, binop(Iop_QSub16Ux8, mkexpr(vA), mkexpr(vB)) ); |
| 5209 | // TODO: set VSCR[SAT] |
| 5210 | break; |
| 5211 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5212 | case 0x680: // vsubuws (Subtract Unsigned Word Saturate, AV p270) |
| 5213 | DIP("vsubuws v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5214 | putVReg( vD_addr, binop(Iop_QSub32Ux4, mkexpr(vA), mkexpr(vB)) ); |
| 5215 | // TODO: set VSCR[SAT] |
| 5216 | break; |
| 5217 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5218 | case 0x700: // vsubsbs (Subtract Signed Byte Saturate, AV p262) |
| 5219 | DIP("vsubsbs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5220 | putVReg( vD_addr, binop(Iop_QSub8Sx16, mkexpr(vA), mkexpr(vB)) ); |
| 5221 | // TODO: set VSCR[SAT] |
| 5222 | break; |
| 5223 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5224 | case 0x740: // vsubshs (Subtract Signed Half Word Saturate, AV p263) |
| 5225 | DIP("vsubshs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5226 | putVReg( vD_addr, binop(Iop_QSub16Sx8, mkexpr(vA), mkexpr(vB)) ); |
| 5227 | // TODO: set VSCR[SAT] |
| 5228 | break; |
| 5229 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5230 | case 0x780: // vsubsws (Subtract Signed Word Saturate, AV p264) |
| 5231 | DIP("vsubsws v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5232 | putVReg( vD_addr, binop(Iop_QSub32Sx4, mkexpr(vA), mkexpr(vB)) ); |
| 5233 | // TODO: set VSCR[SAT] |
| 5234 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5235 | |
| 5236 | |
| 5237 | /* Maximum */ |
| 5238 | case 0x002: // vmaxub (Maximum Unsigned Byte, AV p182) |
| 5239 | DIP("vmaxub v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5240 | putVReg( vD_addr, binop(Iop_Max8Ux16, mkexpr(vA), mkexpr(vB)) ); |
| 5241 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5242 | |
| 5243 | case 0x042: // vmaxuh (Maximum Unsigned Half Word, AV p183) |
| 5244 | DIP("vmaxuh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5245 | putVReg( vD_addr, binop(Iop_Max16Ux8, mkexpr(vA), mkexpr(vB)) ); |
| 5246 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5247 | |
| 5248 | case 0x082: // vmaxuw (Maximum Unsigned Word, AV p184) |
| 5249 | DIP("vmaxuw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5250 | putVReg( vD_addr, binop(Iop_Max32Ux4, mkexpr(vA), mkexpr(vB)) ); |
| 5251 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5252 | |
| 5253 | case 0x102: // vmaxsb (Maximum Signed Byte, AV p179) |
| 5254 | DIP("vmaxsb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5255 | putVReg( vD_addr, binop(Iop_Max8Sx16, mkexpr(vA), mkexpr(vB)) ); |
| 5256 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5257 | |
| 5258 | case 0x142: // vmaxsh (Maximum Signed Half Word, AV p180) |
| 5259 | DIP("vmaxsh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5260 | putVReg( vD_addr, binop(Iop_Max16Sx8, mkexpr(vA), mkexpr(vB)) ); |
| 5261 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5262 | |
| 5263 | case 0x182: // vmaxsw (Maximum Signed Word, AV p181) |
| 5264 | DIP("vmaxsw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5265 | putVReg( vD_addr, binop(Iop_Max32Sx4, mkexpr(vA), mkexpr(vB)) ); |
| 5266 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5267 | |
| 5268 | |
| 5269 | /* Minimum */ |
| 5270 | case 0x202: // vminub (Minimum Unsigned Byte, AV p191) |
| 5271 | DIP("vminub v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5272 | putVReg( vD_addr, binop(Iop_Min8Ux16, mkexpr(vA), mkexpr(vB)) ); |
| 5273 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5274 | |
| 5275 | case 0x242: // vminuh (Minimum Unsigned Half Word, AV p192) |
| 5276 | DIP("vminuh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5277 | putVReg( vD_addr, binop(Iop_Min16Ux8, mkexpr(vA), mkexpr(vB)) ); |
| 5278 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5279 | |
| 5280 | case 0x282: // vminuw (Minimum Unsigned Word, AV p193) |
| 5281 | DIP("vminuw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5282 | putVReg( vD_addr, binop(Iop_Min32Ux4, mkexpr(vA), mkexpr(vB)) ); |
| 5283 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5284 | |
| 5285 | case 0x302: // vminsb (Minimum Signed Byte, AV p188) |
| 5286 | DIP("vminsb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5287 | putVReg( vD_addr, binop(Iop_Min8Sx16, mkexpr(vA), mkexpr(vB)) ); |
| 5288 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5289 | |
| 5290 | case 0x342: // vminsh (Minimum Signed Half Word, AV p189) |
| 5291 | DIP("vminsh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5292 | putVReg( vD_addr, binop(Iop_Min16Sx8, mkexpr(vA), mkexpr(vB)) ); |
| 5293 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5294 | |
| 5295 | case 0x382: // vminsw (Minimum Signed Word, AV p190) |
| 5296 | DIP("vminsw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5297 | putVReg( vD_addr, binop(Iop_Min32Sx4, mkexpr(vA), mkexpr(vB)) ); |
| 5298 | break; |
| 5299 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5300 | |
| 5301 | /* Average */ |
| 5302 | case 0x402: // vavgub (Average Unsigned Byte, AV p152) |
| 5303 | DIP("vavgub v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5304 | putVReg( vD_addr, binop(Iop_Avg8Ux16, mkexpr(vA), mkexpr(vB)) ); |
| 5305 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5306 | |
| 5307 | case 0x442: // vavguh (Average Unsigned Half Word, AV p153) |
| 5308 | DIP("vavguh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5309 | putVReg( vD_addr, binop(Iop_Avg16Ux8, mkexpr(vA), mkexpr(vB)) ); |
| 5310 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5311 | |
| 5312 | case 0x482: // vavguw (Average Unsigned Word, AV p154) |
| 5313 | DIP("vavguw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5314 | putVReg( vD_addr, binop(Iop_Avg32Ux4, mkexpr(vA), mkexpr(vB)) ); |
| 5315 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5316 | |
| 5317 | case 0x502: // vavgsb (Average Signed Byte, AV p149) |
| 5318 | DIP("vavgsb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5319 | putVReg( vD_addr, binop(Iop_Avg8Sx16, mkexpr(vA), mkexpr(vB)) ); |
| 5320 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5321 | |
| 5322 | case 0x542: // vavgsh (Average Signed Half Word, AV p150) |
| 5323 | DIP("vavgsh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5324 | putVReg( vD_addr, binop(Iop_Avg16Sx8, mkexpr(vA), mkexpr(vB)) ); |
| 5325 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5326 | |
| 5327 | case 0x582: // vavgsw (Average Signed Word, AV p151) |
| 5328 | DIP("vavgsw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5329 | putVReg( vD_addr, binop(Iop_Avg32Sx4, mkexpr(vA), mkexpr(vB)) ); |
| 5330 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5331 | |
| 5332 | |
| 5333 | /* Multiply */ |
| 5334 | case 0x008: // vmuloub (Multiply Odd Unsigned Byte, AV p213) |
| 5335 | DIP("vmuloub v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5336 | putVReg( vD_addr, binop(Iop_MulLo16Ux8, mkexpr(vA), mkexpr(vB)) ); |
| 5337 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5338 | |
| 5339 | case 0x048: // vmulouh (Multiply Odd Unsigned Half Word, AV p214) |
| 5340 | DIP("vmulouh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5341 | putVReg( vD_addr, binop(Iop_MulLo32Ux4, mkexpr(vA), mkexpr(vB)) ); |
| 5342 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5343 | |
| 5344 | case 0x108: // vmulosb (Multiply Odd Signed Byte, AV p211) |
| 5345 | DIP("vmulosb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5346 | putVReg( vD_addr, binop(Iop_MulLo16Sx8, mkexpr(vA), mkexpr(vB)) ); |
| 5347 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5348 | |
| 5349 | case 0x148: // vmulosh (Multiply Odd Signed Half Word, AV p212) |
| 5350 | DIP("vmulosh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5351 | putVReg( vD_addr, binop(Iop_MulLo32Sx4, mkexpr(vA), mkexpr(vB)) ); |
| 5352 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5353 | |
| 5354 | case 0x208: // vmuleub (Multiply Even Unsigned Byte, AV p209) |
| 5355 | DIP("vmuleub v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5356 | putVReg( vD_addr, binop(Iop_MulHi16Ux8, mkexpr(vA), mkexpr(vB)) ); |
| 5357 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5358 | |
| 5359 | case 0x248: // vmuleuh (Multiply Even Unsigned Half Word, AV p210) |
| 5360 | DIP("vmuleuh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5361 | putVReg( vD_addr, binop(Iop_MulHi32Ux4, mkexpr(vA), mkexpr(vB)) ); |
| 5362 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5363 | |
| 5364 | case 0x308: // vmulesb (Multiply Even Signed Byte, AV p207) |
| 5365 | DIP("vmulesb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5366 | putVReg( vD_addr, binop(Iop_MulHi16Sx8, mkexpr(vA), mkexpr(vB)) ); |
| 5367 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5368 | |
| 5369 | case 0x348: // vmulesh (Multiply Even Signed Half Word, AV p208) |
| 5370 | DIP("vmulesh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 36991ef | 2005-09-15 12:42:16 +0000 | [diff] [blame] | 5371 | putVReg( vD_addr, binop(Iop_MulHi32Sx4, mkexpr(vA), mkexpr(vB)) ); |
| 5372 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5373 | |
| 5374 | |
| 5375 | /* Sum Across Partial */ |
| 5376 | case 0x608: // vsum4ubs (Sum Partial (1/4) UB Saturate, AV p275) |
| 5377 | DIP("vsum4ubs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5378 | DIP(" => not implemented\n"); |
| 5379 | return False; |
| 5380 | |
| 5381 | case 0x708: // vsum4sbs (Sum Partial (1/4) SB Saturate, AV p273) |
| 5382 | DIP("vsum4sbs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5383 | DIP(" => not implemented\n"); |
| 5384 | return False; |
| 5385 | |
| 5386 | case 0x648: // vsum4shs (Sum Partial (1/4) SHW Saturate, AV p274) |
| 5387 | DIP("vsum4shs v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5388 | DIP(" => not implemented\n"); |
| 5389 | return False; |
| 5390 | |
| 5391 | case 0x688: // vsum2sws (Sum Partial (1/2) SW Saturate, AV p272) |
| 5392 | DIP("vsum2sws v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5393 | DIP(" => not implemented\n"); |
| 5394 | return False; |
| 5395 | |
| 5396 | case 0x788: // vsumsws (Sum SW Saturate, AV p271) |
| 5397 | DIP("vsumsws v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5398 | DIP(" => not implemented\n"); |
| 5399 | return False; |
| 5400 | |
| 5401 | default: |
| 5402 | vex_printf("dis_av_arith(PPC32)(opc2=0x%x)\n", opc2); |
| 5403 | return False; |
| 5404 | } |
| 5405 | return True; |
| 5406 | } |
| 5407 | |
| 5408 | /* |
| 5409 | AltiVec Logic Instructions |
| 5410 | */ |
| 5411 | static Bool dis_av_logic ( UInt theInstr ) |
| 5412 | { |
| 5413 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 5414 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 5415 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5416 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 5417 | UInt opc2 = (theInstr >> 0) & 0x7FF; /* theInstr[0:10] */ |
| 5418 | |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 5419 | IRTemp vA = newTemp(Ity_V128); |
| 5420 | IRTemp vB = newTemp(Ity_V128); |
| 5421 | assign( vA, getVReg(vA_addr)); |
| 5422 | assign( vB, getVReg(vB_addr)); |
| 5423 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5424 | if (opc1 != 0x4) { |
| 5425 | vex_printf("dis_av_logic(PPC32)(opc1 != 0x4)\n"); |
| 5426 | return False; |
| 5427 | } |
| 5428 | |
| 5429 | switch (opc2) { |
| 5430 | case 0x404: // vand (And, AV p147) |
| 5431 | DIP("vand v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 5432 | putVReg( vD_addr, binop(Iop_AndV128, mkexpr(vA), mkexpr(vB)) ); |
| 5433 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5434 | |
| 5435 | case 0x444: // vandc (And, AV p148) |
| 5436 | DIP("vandc v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 6e7a0ea | 2005-09-13 13:34:09 +0000 | [diff] [blame] | 5437 | putVReg( vD_addr, binop(Iop_AndV128, mkexpr(vA), |
| 5438 | unop(Iop_NotV128, mkexpr(vB))) ); |
| 5439 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5440 | |
| 5441 | case 0x484: // vor (Or, AV p217) |
| 5442 | DIP("vor v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 5443 | putVReg( vD_addr, binop(Iop_OrV128, mkexpr(vA), mkexpr(vB)) ); |
| 5444 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5445 | |
| 5446 | case 0x4C4: // vxor (Xor, AV p282) |
| 5447 | DIP("vxor v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 5448 | putVReg( vD_addr, binop(Iop_XorV128, mkexpr(vA), mkexpr(vB)) ); |
| 5449 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5450 | |
| 5451 | case 0x504: // vnor (Nor, AV p216) |
| 5452 | DIP("vnor v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 6e7a0ea | 2005-09-13 13:34:09 +0000 | [diff] [blame] | 5453 | putVReg( vD_addr, |
| 5454 | unop(Iop_NotV128, binop(Iop_OrV128, mkexpr(vA), mkexpr(vB))) ); |
| 5455 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5456 | |
| 5457 | default: |
| 5458 | vex_printf("dis_av_logic(PPC32)(opc2=0x%x)\n", opc2); |
| 5459 | return False; |
| 5460 | } |
| 5461 | return True; |
| 5462 | } |
| 5463 | |
| 5464 | /* |
| 5465 | AltiVec Compare Instructions |
| 5466 | */ |
| 5467 | static Bool dis_av_cmp ( UInt theInstr ) |
| 5468 | { |
| 5469 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 5470 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 5471 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5472 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 5473 | UChar flag_Rc = toUChar((theInstr >> 10) & 0x1); /* theInstr[10] */ |
| 5474 | UInt opc2 = (theInstr >> 0) & 0x3FF; /* theInstr[0:9] */ |
| 5475 | |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5476 | IRTemp vA = newTemp(Ity_V128); |
| 5477 | IRTemp vB = newTemp(Ity_V128); |
| 5478 | IRTemp vD = newTemp(Ity_V128); |
| 5479 | assign( vA, getVReg(vA_addr)); |
| 5480 | assign( vB, getVReg(vB_addr)); |
| 5481 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5482 | if (opc1 != 0x4) { |
| 5483 | vex_printf("dis_av_cmp(PPC32)(instr)\n"); |
| 5484 | return False; |
| 5485 | } |
| 5486 | |
| 5487 | switch (opc2) { |
| 5488 | case 0x006: // vcmpequb (Compare Equal-to Unsigned B, AV p160) |
| 5489 | DIP("vcmpequb%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5490 | assign( vD, binop(Iop_CmpEQ8x16, mkexpr(vA), mkexpr(vB)) ); |
| 5491 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5492 | |
| 5493 | case 0x046: // vcmpequh (Compare Equal-to Unsigned HW, AV p161) |
| 5494 | DIP("vcmpequh%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5495 | assign( vD, binop(Iop_CmpEQ16x8, mkexpr(vA), mkexpr(vB)) ); |
| 5496 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5497 | |
| 5498 | case 0x086: // vcmpequw (Compare Equal-to Unsigned W, AV p162) |
| 5499 | DIP("vcmpequw%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5500 | assign( vD, binop(Iop_CmpEQ32x4, mkexpr(vA), mkexpr(vB)) ); |
| 5501 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5502 | |
| 5503 | case 0x206: // vcmpgtub (Compare Greater-than Unsigned B, AV p168) |
| 5504 | DIP("vcmpgtub%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5505 | assign( vD, binop(Iop_CmpGT8Ux16, mkexpr(vA), mkexpr(vB)) ); |
| 5506 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5507 | |
| 5508 | case 0x246: // vcmpgtuh (Compare Greater-than Unsigned HW, AV p169) |
| 5509 | DIP("vcmpgtuh%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5510 | assign( vD, binop(Iop_CmpGT16Ux8, mkexpr(vA), mkexpr(vB)) ); |
| 5511 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5512 | |
| 5513 | case 0x286: // vcmpgtuw (Compare Greater-than Unsigned W, AV p170) |
| 5514 | DIP("vcmpgtuw%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5515 | assign( vD, binop(Iop_CmpGT32Ux4, mkexpr(vA), mkexpr(vB)) ); |
| 5516 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5517 | |
| 5518 | case 0x306: // vcmpgtsb (Compare Greater-than Signed B, AV p165) |
| 5519 | DIP("vcmpgtsb%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5520 | assign( vD, binop(Iop_CmpGT8Sx16, mkexpr(vA), mkexpr(vB)) ); |
| 5521 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5522 | |
| 5523 | case 0x346: // vcmpgtsh (Compare Greater-than Signed HW, AV p166) |
| 5524 | DIP("vcmpgtsh%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5525 | assign( vD, binop(Iop_CmpGT16Sx8, mkexpr(vA), mkexpr(vB)) ); |
| 5526 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5527 | |
| 5528 | case 0x386: // vcmpgtsw (Compare Greater-than Signed W, AV p167) |
| 5529 | DIP("vcmpgtsw%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5530 | assign( vD, binop(Iop_CmpGT32Sx4, mkexpr(vA), mkexpr(vB)) ); |
| 5531 | break; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5532 | |
| 5533 | default: |
| 5534 | vex_printf("dis_av_cmp(PPC32)(opc2)\n"); |
| 5535 | return False; |
| 5536 | } |
cerion | 0c43922 | 2005-09-15 14:22:58 +0000 | [diff] [blame^] | 5537 | |
| 5538 | putVReg( vD_addr, mkexpr(vD) ); |
| 5539 | |
| 5540 | if (flag_Rc) { |
| 5541 | set_AV_CR6( mkexpr(vD) ); |
| 5542 | } |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5543 | return True; |
| 5544 | } |
| 5545 | |
| 5546 | /* |
| 5547 | AltiVec Multiply-Sum Instructions |
| 5548 | */ |
| 5549 | static Bool dis_av_multarith ( UInt theInstr ) |
| 5550 | { |
| 5551 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 5552 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 5553 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5554 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 5555 | UChar vC_addr = toUChar((theInstr >> 6) & 0x1F); /* theInstr[6:10] */ |
| 5556 | UChar opc2 = toUChar((theInstr >> 0) & 0x3F); /* theInstr[0:5] */ |
| 5557 | |
| 5558 | if (opc1 != 0x4) { |
| 5559 | vex_printf("dis_av_multarith(PPC32)(instr)\n"); |
| 5560 | return False; |
| 5561 | } |
| 5562 | |
| 5563 | switch (opc2) { |
| 5564 | |
| 5565 | /* Multiply-Add */ |
| 5566 | case 0x20: // vmhaddshs (Multiply High, Add Signed HW Saturate, AV p185) |
| 5567 | DIP("vmhaddshs v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5568 | DIP(" => not implemented\n"); |
| 5569 | return False; |
| 5570 | |
| 5571 | case 0x21: // vmhraddshs (Multiply High Round, Add Signed HW Saturate, AV p186) |
| 5572 | DIP("vmhraddshs v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5573 | DIP(" => not implemented\n"); |
| 5574 | return False; |
| 5575 | |
| 5576 | case 0x22: // vmladduhm (Multiply Low, Add Unsigned HW Modulo, AV p194) |
| 5577 | DIP("vmladduhm v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5578 | DIP(" => not implemented\n"); |
| 5579 | return False; |
| 5580 | |
| 5581 | |
| 5582 | /* Multiply-Sum */ |
| 5583 | case 0x24: // vmsumubm (Multiply Sum Unsigned B Modulo, AV p204) |
| 5584 | DIP("vmsumubm v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5585 | DIP(" => not implemented\n"); |
| 5586 | return False; |
| 5587 | |
| 5588 | case 0x25: // vmsummbm (Multiply Sum Mixed-Sign B Modulo, AV p201) |
| 5589 | DIP("vmsummbm v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5590 | DIP(" => not implemented\n"); |
| 5591 | return False; |
| 5592 | |
| 5593 | case 0x26: // vmsumuhm (Multiply Sum Unsigned HW Modulo, AV p205) |
| 5594 | DIP("vmsumuhm v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5595 | DIP(" => not implemented\n"); |
| 5596 | return False; |
| 5597 | |
| 5598 | case 0x27: // vmsumuhs (Multiply Sum Unsigned HW Saturate, AV p206) |
| 5599 | DIP("vmsumuhs v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5600 | DIP(" => not implemented\n"); |
| 5601 | return False; |
| 5602 | |
| 5603 | case 0x28: // vmsumshm (Multiply Sum Signed HW Modulo, AV p202) |
| 5604 | DIP("vmsumshm v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5605 | DIP(" => not implemented\n"); |
| 5606 | return False; |
| 5607 | |
| 5608 | case 0x29: // vmsumshs (Multiply Sum Signed HW Saturate, AV p203) |
| 5609 | DIP("vmsumshs v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5610 | DIP(" => not implemented\n"); |
| 5611 | return False; |
| 5612 | |
| 5613 | default: |
| 5614 | vex_printf("dis_av_multarith(PPC32)(opc2)\n"); |
| 5615 | return False; |
| 5616 | } |
| 5617 | return True; |
| 5618 | } |
| 5619 | |
| 5620 | /* |
| 5621 | AltiVec Shift/Rotate Instructions |
| 5622 | */ |
| 5623 | static Bool dis_av_shift ( UInt theInstr ) |
| 5624 | { |
| 5625 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 5626 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 5627 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5628 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 5629 | UInt opc2 = (theInstr >> 0) & 0x7FF; /* theInstr[0:10] */ |
| 5630 | |
cerion | 27b3d7e | 2005-09-14 20:35:47 +0000 | [diff] [blame] | 5631 | IRTemp vA = newTemp(Ity_V128); |
| 5632 | IRTemp vB = newTemp(Ity_V128); |
| 5633 | assign( vA, getVReg(vA_addr)); |
| 5634 | assign( vB, getVReg(vB_addr)); |
| 5635 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5636 | if (opc1 != 0x4){ |
| 5637 | vex_printf("dis_av_shift(PPC32)(instr)\n"); |
| 5638 | return False; |
| 5639 | } |
| 5640 | |
| 5641 | switch (opc2) { |
| 5642 | /* Rotate */ |
| 5643 | case 0x004: // vrlb (Rotate Left Integer B, AV p234) |
| 5644 | DIP("vrlb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5645 | DIP(" => not implemented\n"); |
| 5646 | return False; |
| 5647 | |
| 5648 | case 0x044: // vrlh (Rotate Left Integer HW, AV p235) |
| 5649 | DIP("vrlh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5650 | DIP(" => not implemented\n"); |
| 5651 | return False; |
| 5652 | |
| 5653 | case 0x084: // vrlw (Rotate Left Integer W, AV p236) |
| 5654 | DIP("vrlw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5655 | DIP(" => not implemented\n"); |
| 5656 | return False; |
| 5657 | |
| 5658 | |
| 5659 | /* Shift Left */ |
| 5660 | case 0x104: // vslb (Shift Left Integer B, AV p240) |
| 5661 | DIP("vslb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5662 | DIP(" => not implemented\n"); |
| 5663 | return False; |
| 5664 | |
| 5665 | case 0x144: // vslh (Shift Left Integer HW, AV p242) |
| 5666 | DIP("vslh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5667 | DIP(" => not implemented\n"); |
| 5668 | return False; |
| 5669 | |
| 5670 | case 0x184: // vslw (Shift Left Integer W, AV p244) |
| 5671 | DIP("vslw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5672 | DIP(" => not implemented\n"); |
| 5673 | return False; |
| 5674 | |
| 5675 | case 0x1C4: // vsl (Shift Left, AV p239) |
| 5676 | DIP("vsl v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5677 | DIP(" => not implemented\n"); |
| 5678 | return False; |
| 5679 | |
| 5680 | case 0x40C: // vslo (Shift Left by Octet, AV p243) |
| 5681 | DIP("vslo v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5682 | DIP(" => not implemented\n"); |
| 5683 | return False; |
| 5684 | |
| 5685 | /* Shift Right */ |
| 5686 | case 0x204: // vsrb (Shift Right B, AV p256) |
| 5687 | DIP("vsrb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5688 | DIP(" => not implemented\n"); |
| 5689 | return False; |
| 5690 | |
| 5691 | case 0x244: // vsrh (Shift Right HW, AV p257) |
| 5692 | DIP("vsrh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5693 | DIP(" => not implemented\n"); |
| 5694 | return False; |
| 5695 | |
| 5696 | case 0x284: // vsrw (Shift Right W, AV p259) |
| 5697 | DIP("vsrw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5698 | DIP(" => not implemented\n"); |
| 5699 | return False; |
| 5700 | |
cerion | 27b3d7e | 2005-09-14 20:35:47 +0000 | [diff] [blame] | 5701 | case 0x2C4: { // vsr (Shift Right, AV p251) |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5702 | DIP("vsr v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
cerion | 27b3d7e | 2005-09-14 20:35:47 +0000 | [diff] [blame] | 5703 | IRTemp sh = newTemp(Ity_I8); |
| 5704 | assign( sh, binop(Iop_And8, mkU8(0x7), |
| 5705 | unop(Iop_32to8, |
| 5706 | unop(Iop_V128to32, mkexpr(vB)))) ); |
| 5707 | putVReg( vD_addr, |
| 5708 | binop(Iop_ShrV128, mkexpr(vA), mkexpr(sh)) ); |
| 5709 | break; |
| 5710 | } |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5711 | case 0x304: // vsrab (Shift Right Algebraic B, AV p253) |
| 5712 | DIP("vsrab v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5713 | DIP(" => not implemented\n"); |
| 5714 | return False; |
| 5715 | |
| 5716 | case 0x344: // vsrah (Shift Right Algebraic HW, AV p254) |
| 5717 | DIP("vsrah v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5718 | DIP(" => not implemented\n"); |
| 5719 | return False; |
| 5720 | |
| 5721 | case 0x384: // vsraw (Shift Right Algebraic W, AV p255) |
| 5722 | DIP("vsraw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5723 | DIP(" => not implemented\n"); |
| 5724 | return False; |
| 5725 | |
| 5726 | case 0x44C: // vsro (Shift Right by Octet, AV p258) |
| 5727 | DIP("vsro v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5728 | DIP(" => not implemented\n"); |
| 5729 | return False; |
| 5730 | |
| 5731 | default: |
| 5732 | vex_printf("dis_av_shift(PPC32)(opc2)\n"); |
| 5733 | return False; |
| 5734 | } |
| 5735 | return True; |
| 5736 | } |
| 5737 | |
| 5738 | /* |
| 5739 | AltiVec Permute Instructions |
| 5740 | */ |
| 5741 | static Bool dis_av_permute ( UInt theInstr ) |
| 5742 | { |
| 5743 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 5744 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 5745 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5746 | UChar UIMM_5 = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5747 | UChar SIMM_5 = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5748 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 5749 | UChar vC_addr = toUChar((theInstr >> 6) & 0x1F); /* theInstr[6:10] */ |
| 5750 | UChar b10 = toUChar((theInstr >> 10) & 0x1); /* theInstr[10] */ |
| 5751 | UChar SHB_uimm4 = toUChar((theInstr >> 6) & 0xF); /* theInstr[6:9] */ |
| 5752 | UInt opc2 = (theInstr >> 0) & 0x3F; /* theInstr[0:5] */ |
| 5753 | |
| 5754 | UChar SIMM_8 = extend_s_5to8(SIMM_5); |
| 5755 | |
cerion | 6e7a0ea | 2005-09-13 13:34:09 +0000 | [diff] [blame] | 5756 | IRTemp vA = newTemp(Ity_V128); |
| 5757 | IRTemp vB = newTemp(Ity_V128); |
| 5758 | IRTemp vC = newTemp(Ity_V128); |
| 5759 | assign( vA, getVReg(vA_addr)); |
| 5760 | assign( vB, getVReg(vB_addr)); |
| 5761 | assign( vC, getVReg(vC_addr)); |
| 5762 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5763 | if (opc1 != 0x4) { |
| 5764 | vex_printf("dis_av_permute(PPC32)(instr)\n"); |
| 5765 | return False; |
| 5766 | } |
| 5767 | |
| 5768 | switch (opc2) { |
| 5769 | case 0x2A: // vsel (Conditional Select, AV p238) |
| 5770 | DIP("vsel v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
cerion | 6e7a0ea | 2005-09-13 13:34:09 +0000 | [diff] [blame] | 5771 | /* vD = (vA & ~vC) | (vB & vC) */ |
| 5772 | putVReg( vD_addr, binop(Iop_OrV128, |
| 5773 | binop(Iop_AndV128, mkexpr(vA), unop(Iop_NotV128, mkexpr(vC))), |
| 5774 | binop(Iop_AndV128, mkexpr(vB), mkexpr(vC))) ); |
| 5775 | return True; |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5776 | |
| 5777 | case 0x2B: // vperm (Permute, AV p218) |
| 5778 | DIP("vperm v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr, vC_addr); |
| 5779 | DIP(" => not implemented\n"); |
| 5780 | return False; |
| 5781 | |
| 5782 | case 0x2C: // vsldoi (Shift Left Double by Octet Imm, AV p241) |
| 5783 | if (b10 != 0) { |
| 5784 | vex_printf("dis_av_permute(PPC32)(vsldoi)\n"); |
| 5785 | return False; |
| 5786 | } |
| 5787 | DIP("vsldoi v%d,v%d,v%d,%d\n", vD_addr, vA_addr, vB_addr, SHB_uimm4); |
| 5788 | DIP(" => not implemented\n"); |
| 5789 | return False; |
| 5790 | |
| 5791 | default: |
| 5792 | break; // Fall through... |
| 5793 | } |
| 5794 | |
| 5795 | opc2 = (theInstr) & 0x7FF; /* theInstr[0:10] */ |
| 5796 | switch (opc2) { |
| 5797 | |
| 5798 | /* Merge */ |
| 5799 | case 0x00C: // vmrghb (Merge High B, AV p195) |
| 5800 | DIP("vmrghb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5801 | DIP(" => not implemented\n"); |
| 5802 | return False; |
| 5803 | |
| 5804 | case 0x04C: // vmrghh (Merge High HW, AV p196) |
| 5805 | DIP("vmrghh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5806 | DIP(" => not implemented\n"); |
| 5807 | return False; |
| 5808 | |
| 5809 | case 0x08C: // vmrghw (Merge High W, AV p197) |
| 5810 | DIP("vmrghw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5811 | DIP(" => not implemented\n"); |
| 5812 | return False; |
| 5813 | |
| 5814 | case 0x10C: // vmrglb (Merge Low B, AV p198) |
| 5815 | DIP("vmrglb v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5816 | DIP(" => not implemented\n"); |
| 5817 | return False; |
| 5818 | |
| 5819 | case 0x14C: // vmrglh (Merge Low HW, AV p199) |
| 5820 | DIP("vmrglh v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5821 | DIP(" => not implemented\n"); |
| 5822 | return False; |
| 5823 | |
| 5824 | case 0x18C: // vmrglw (Merge Low W, AV p200) |
| 5825 | DIP("vmrglw v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5826 | DIP(" => not implemented\n"); |
| 5827 | return False; |
| 5828 | |
| 5829 | /* Splat */ |
| 5830 | case 0x20C: // vspltb (Splat Byte, AV p245) |
| 5831 | DIP("vspltb v%d,v%d,%d\n", vD_addr, vB_addr, UIMM_5); |
| 5832 | DIP(" => not implemented\n"); |
| 5833 | return False; |
| 5834 | |
| 5835 | case 0x24C: // vsplth (Splat Half Word, AV p246) |
| 5836 | DIP("vsplth v%d,v%d,%d\n", vD_addr, vB_addr, UIMM_5); |
| 5837 | DIP(" => not implemented\n"); |
| 5838 | return False; |
| 5839 | |
cerion | 27b3d7e | 2005-09-14 20:35:47 +0000 | [diff] [blame] | 5840 | case 0x28C: { // vspltw (Splat Word, AV p250) |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5841 | DIP("vspltw v%d,v%d,%d\n", vD_addr, vB_addr, UIMM_5); |
cerion | 27b3d7e | 2005-09-14 20:35:47 +0000 | [diff] [blame] | 5842 | /* vD = Dup32x4( vB[UIMM_5] ) */ |
| 5843 | unsigned int sh_uimm = (3-UIMM_5)*32; |
| 5844 | putVReg( vD_addr, unop(Iop_Dup32x4, |
| 5845 | unop(Iop_V128to32, |
| 5846 | binop(Iop_ShrV128, mkexpr(vB), mkU8(sh_uimm)))) ); |
| 5847 | break; |
| 5848 | } |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 5849 | case 0x30C: // vspltisb (Splat Immediate Signed B, AV p247) |
| 5850 | DIP("vspltisb v%d,%d\n", vD_addr, (Char)SIMM_8); |
| 5851 | DIP(" => not implemented\n"); |
| 5852 | return False; |
| 5853 | |
| 5854 | case 0x34C: // vspltish (Splat Immediate Signed HW, AV p248) |
| 5855 | DIP("vspltish v%d,%d\n", vD_addr, (Char)SIMM_8); |
| 5856 | DIP(" => not implemented\n"); |
| 5857 | return False; |
| 5858 | |
| 5859 | case 0x38C: // vspltisw (Splat Immediate Signed W, AV p249) |
| 5860 | DIP("vspltisw v%d,%d\n", vD_addr, (Char)SIMM_8); |
| 5861 | DIP(" => not implemented\n"); |
| 5862 | return False; |
| 5863 | |
| 5864 | default: |
| 5865 | vex_printf("dis_av_permute(PPC32)(opc2)\n"); |
| 5866 | return False; |
| 5867 | } |
| 5868 | return True; |
| 5869 | } |
| 5870 | |
| 5871 | /* |
| 5872 | AltiVec Pack/Unpack Instructions |
| 5873 | */ |
| 5874 | static Bool dis_av_pack ( UInt theInstr ) |
| 5875 | { |
| 5876 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 5877 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 5878 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5879 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 5880 | UInt opc2 = (theInstr >> 0) & 0x7FF; /* theInstr[0:10] */ |
| 5881 | |
| 5882 | if (opc1 != 0x4) { |
| 5883 | vex_printf("dis_av_pack(PPC32)(instr)\n"); |
| 5884 | return False; |
| 5885 | } |
| 5886 | |
| 5887 | switch (opc2) { |
| 5888 | /* Packing */ |
| 5889 | case 0x00E: // vpkuhum (Pack Unsigned HW Unsigned Modulo, AV p224) |
| 5890 | DIP("vpkuhum v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5891 | DIP(" => not implemented\n"); |
| 5892 | return False; |
| 5893 | |
| 5894 | case 0x04E: // vpkuwum (Pack Unsigned W Unsigned Modulo, AV p226) |
| 5895 | DIP("vpkuwum v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5896 | DIP(" => not implemented\n"); |
| 5897 | return False; |
| 5898 | |
| 5899 | case 0x08E: // vpkuhus (Pack Unsigned HW Unsigned Saturate, AV p225) |
| 5900 | DIP("vpkuhus v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5901 | DIP(" => not implemented\n"); |
| 5902 | return False; |
| 5903 | |
| 5904 | case 0x0CE: // vpkuwus (Pack Unsigned W Unsigned Saturate, AV p227) |
| 5905 | DIP("vpkuwus v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5906 | DIP(" => not implemented\n"); |
| 5907 | return False; |
| 5908 | |
| 5909 | case 0x10E: // vpkshus (Pack Signed HW Unsigned Saturate, AV p221) |
| 5910 | DIP("vpkshus v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5911 | DIP(" => not implemented\n"); |
| 5912 | return False; |
| 5913 | |
| 5914 | case 0x14E: // vpkswus (Pack Signed W Unsigned Saturate, AV p223) |
| 5915 | DIP("vpkswus v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5916 | DIP(" => not implemented\n"); |
| 5917 | return False; |
| 5918 | |
| 5919 | case 0x18E: // vpkshss (Pack Signed HW Signed Saturate, AV p220) |
| 5920 | DIP("vpkshss v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5921 | DIP(" => not implemented\n"); |
| 5922 | return False; |
| 5923 | |
| 5924 | case 0x1CE: // vpkswss (Pack Signed W Signed Saturate, AV p222) |
| 5925 | DIP("vpkswss v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5926 | DIP(" => not implemented\n"); |
| 5927 | return False; |
| 5928 | |
| 5929 | case 0x30E: // vpkpx (Pack Pixel, AV p219) |
| 5930 | DIP("vpkpx v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 5931 | DIP(" => not implemented\n"); |
| 5932 | return False; |
| 5933 | |
| 5934 | default: |
| 5935 | break; // Fall through... |
| 5936 | } |
| 5937 | |
| 5938 | |
| 5939 | if (vA_addr != 0) { |
| 5940 | vex_printf("dis_av_pack(PPC32)(vA_addr)\n"); |
| 5941 | return False; |
| 5942 | } |
| 5943 | |
| 5944 | switch (opc2) { |
| 5945 | /* Unpacking */ |
| 5946 | case 0x20E: // vupkhsb (Unpack High Signed B, AV p277) |
| 5947 | DIP("vupkhsb v%d,v%d\n", vD_addr, vB_addr); |
| 5948 | DIP(" => not implemented\n"); |
| 5949 | return False; |
| 5950 | |
| 5951 | case 0x24E: // vupkhsh (Unpack High Signed HW, AV p278) |
| 5952 | DIP("vupkhsh v%d,v%d\n", vD_addr, vB_addr); |
| 5953 | DIP(" => not implemented\n"); |
| 5954 | return False; |
| 5955 | |
| 5956 | case 0x28E: // vupklsb (Unpack Low Signed B, AV p280) |
| 5957 | DIP("vupklsb v%d,v%d\n", vD_addr, vB_addr); |
| 5958 | DIP(" => not implemented\n"); |
| 5959 | return False; |
| 5960 | |
| 5961 | case 0x2CE: // vupklsh (Unpack Low Signed HW, AV p281) |
| 5962 | DIP("vupklsh v%d,v%d\n", vD_addr, vB_addr); |
| 5963 | DIP(" => not implemented\n"); |
| 5964 | return False; |
| 5965 | |
| 5966 | case 0x34E: // vupkhpx (Unpack High Pixel16, AV p276) |
| 5967 | DIP("vupkhpx v%d,v%d\n", vD_addr, vB_addr); |
| 5968 | DIP(" => not implemented\n"); |
| 5969 | return False; |
| 5970 | |
| 5971 | case 0x3CE: // vupklpx (Unpack Low Pixel16, AV p279) |
| 5972 | DIP("vupklpx v%d,v%d\n", vD_addr, vB_addr); |
| 5973 | DIP(" => not implemented\n"); |
| 5974 | return False; |
| 5975 | |
| 5976 | default: |
| 5977 | vex_printf("dis_av_pack(PPC32)(opc2)\n"); |
| 5978 | return False; |
| 5979 | } |
| 5980 | return True; |
| 5981 | } |
| 5982 | |
| 5983 | |
| 5984 | /* |
| 5985 | AltiVec Floating Point Arithmetic Instructions |
| 5986 | */ |
| 5987 | static Bool dis_av_fp_arith ( UInt theInstr ) |
| 5988 | { |
| 5989 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 5990 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 5991 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 5992 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 5993 | UChar vC_addr = toUChar((theInstr >> 6) & 0x1F); /* theInstr[6:10] */ |
| 5994 | UInt opc2=0; |
| 5995 | |
| 5996 | if (opc1 != 0x4) { |
| 5997 | vex_printf("dis_av_fp_arith(PPC32)(instr)\n"); |
| 5998 | return False; |
| 5999 | } |
| 6000 | |
| 6001 | opc2 = (theInstr) & 0x3F; /* theInstr[0:5] */ |
| 6002 | switch (opc2) { |
| 6003 | case 0x2E: // vmaddfp (Multiply Add FP, AV p177) |
| 6004 | DIP("vmaddfp v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vC_addr, vB_addr); |
| 6005 | DIP(" => not implemented\n"); |
| 6006 | return False; |
| 6007 | |
| 6008 | case 0x2F: // vnmsubfp (Negative Multiply-Subtract FP, AV p215) |
| 6009 | DIP("vnmsubfp v%d,v%d,v%d,v%d\n", vD_addr, vA_addr, vC_addr, vB_addr); |
| 6010 | DIP(" => not implemented\n"); |
| 6011 | return False; |
| 6012 | |
| 6013 | default: |
| 6014 | break; // Fall through... |
| 6015 | } |
| 6016 | |
| 6017 | opc2 = (theInstr) & 0x7FF; /* theInstr[0:10] */ |
| 6018 | switch (opc2) { |
| 6019 | case 0x00A: // vaddfp (Add FP, AV p137) |
| 6020 | DIP("vaddfp v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 6021 | DIP(" => not implemented\n"); |
| 6022 | return False; |
| 6023 | |
| 6024 | case 0x04A: // vsubfp (Subtract FP, AV p261) |
| 6025 | DIP("vsubfp v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 6026 | DIP(" => not implemented\n"); |
| 6027 | return False; |
| 6028 | |
| 6029 | case 0x40A: // vmaxfp (Maximum FP, AV p178) |
| 6030 | DIP("vmaxfp v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 6031 | DIP(" => not implemented\n"); |
| 6032 | return False; |
| 6033 | |
| 6034 | case 0x44A: // vminfp (Minimum FP, AV p187) |
| 6035 | DIP("vminfp v%d,v%d,v%d\n", vD_addr, vA_addr, vB_addr); |
| 6036 | DIP(" => not implemented\n"); |
| 6037 | return False; |
| 6038 | |
| 6039 | default: |
| 6040 | break; // Fall through... |
| 6041 | } |
| 6042 | |
| 6043 | |
| 6044 | if (vA_addr != 0) { |
| 6045 | vex_printf("dis_av_fp_arith(PPC32)(vA_addr)\n"); |
| 6046 | return False; |
| 6047 | } |
| 6048 | |
| 6049 | switch (opc2) { |
| 6050 | case 0x10A: // vrefp (Reciprocal Esimate FP, AV p228) |
| 6051 | DIP("vrefp v%d,v%d\n", vD_addr, vB_addr); |
| 6052 | DIP(" => not implemented\n"); |
| 6053 | return False; |
| 6054 | |
| 6055 | case 0x14A: // vrsqrtefp (Reciprocal Square Root Estimate FP, AV p237) |
| 6056 | DIP("vrsqrtefp v%d,v%d\n", vD_addr, vB_addr); |
| 6057 | DIP(" => not implemented\n"); |
| 6058 | return False; |
| 6059 | |
| 6060 | case 0x18A: // vexptefp (2 Raised to the Exp Est FP, AV p173) |
| 6061 | DIP("vexptefp v%d,v%d\n", vD_addr, vB_addr); |
| 6062 | DIP(" => not implemented\n"); |
| 6063 | return False; |
| 6064 | |
| 6065 | case 0x1CA: // vlogefp (Log2 Estimate FP, AV p175) |
| 6066 | DIP("vlogefp v%d,v%d\n", vD_addr, vB_addr); |
| 6067 | DIP(" => not implemented\n"); |
| 6068 | return False; |
| 6069 | |
| 6070 | default: |
| 6071 | vex_printf("dis_av_fp_arith(PPC32)(opc2=0x%x)\n",opc2); |
| 6072 | return False; |
| 6073 | } |
| 6074 | return True; |
| 6075 | } |
| 6076 | |
| 6077 | /* |
| 6078 | AltiVec Floating Point Compare Instructions |
| 6079 | */ |
| 6080 | static Bool dis_av_fp_cmp ( UInt theInstr ) |
| 6081 | { |
| 6082 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 6083 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 6084 | UChar vA_addr = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 6085 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 6086 | UChar flag_Rc = toUChar((theInstr >> 10) & 0x1); /* theInstr[10] */ |
| 6087 | UInt opc2 = (theInstr >> 0) & 0x3FF; /* theInstr[0:9] */ |
| 6088 | |
| 6089 | if (opc1 != 0x4) { |
| 6090 | vex_printf("dis_av_fp_cmp(PPC32)(instr)\n"); |
| 6091 | return False; |
| 6092 | } |
| 6093 | |
| 6094 | switch (opc2) { |
| 6095 | case 0x0C6: // vcmpeqfp (Compare Equal-to FP, AV p159) |
| 6096 | DIP("vcmpeqfp%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
| 6097 | DIP(" => not implemented\n"); |
| 6098 | return False; |
| 6099 | |
| 6100 | case 0x1C6: // vcmpgefp (Compare Greater-than-or-Equal-to FP, AV p163) |
| 6101 | DIP("vcmpgefp%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
| 6102 | DIP(" => not implemented\n"); |
| 6103 | return False; |
| 6104 | |
| 6105 | case 0x2C6: // vcmpgtfp (Compare Greater-than FP, AV p164) |
| 6106 | DIP("vcmpgtfp%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
| 6107 | DIP(" => not implemented\n"); |
| 6108 | return False; |
| 6109 | |
| 6110 | case 0x3C6: // vcmpbfp (Compare Bounds FP, AV p157) |
| 6111 | DIP("vcmpbfp%s v%d,v%d,v%d\n", (flag_Rc ? ".":""), vD_addr, vA_addr, vB_addr); |
| 6112 | DIP(" => not implemented\n"); |
| 6113 | return False; |
| 6114 | |
| 6115 | default: |
| 6116 | vex_printf("dis_av_fp_cmp(PPC32)(opc2)\n"); |
| 6117 | return False; |
| 6118 | } |
| 6119 | return True; |
| 6120 | } |
| 6121 | |
| 6122 | /* |
| 6123 | AltiVec Floating Point Convert/Round Instructions |
| 6124 | */ |
| 6125 | static Bool dis_av_fp_convert ( UInt theInstr ) |
| 6126 | { |
| 6127 | UChar opc1 = toUChar((theInstr >> 26) & 0x3F); /* theInstr[26:31] */ |
| 6128 | UChar vD_addr = toUChar((theInstr >> 21) & 0x1F); /* theInstr[21:25] */ |
| 6129 | UChar UIMM_5 = toUChar((theInstr >> 16) & 0x1F); /* theInstr[16:20] */ |
| 6130 | UChar vB_addr = toUChar((theInstr >> 11) & 0x1F); /* theInstr[11:15] */ |
| 6131 | UInt opc2 = (theInstr >> 0) & 0x7FF; /* theInstr[0:10] */ |
| 6132 | |
| 6133 | if (opc1 != 0x4) { |
| 6134 | vex_printf("dis_av_fp_convert(PPC32)(instr)\n"); |
| 6135 | return False; |
| 6136 | } |
| 6137 | |
| 6138 | switch (opc2) { |
| 6139 | case 0x30A: // vcfux (Convert from Unsigned Fixed-Point W, AV p156) |
| 6140 | DIP("vcfux v%d,v%d,%d\n", vD_addr, vB_addr, UIMM_5); |
| 6141 | DIP(" => not implemented\n"); |
| 6142 | return False; |
| 6143 | |
| 6144 | case 0x34A: // vcfsx (Convert from Signed Fixed-Point W, AV p155) |
| 6145 | DIP("vcfsx v%d,v%d,%d\n", vD_addr, vB_addr, UIMM_5); |
| 6146 | DIP(" => not implemented\n"); |
| 6147 | return False; |
| 6148 | |
| 6149 | case 0x38A: // vctuxs (Convert to Unsigned Fixed-Point W Saturate, AV p172) |
| 6150 | DIP("vctuxs v%d,v%d,%d\n", vD_addr, vB_addr, UIMM_5); |
| 6151 | DIP(" => not implemented\n"); |
| 6152 | return False; |
| 6153 | |
| 6154 | case 0x3CA: // vctsxs (Convert to Signed Fixed-Point W Saturate, AV p171) |
| 6155 | DIP("vctsxs v%d,v%d,%d\n", vD_addr, vB_addr, UIMM_5); |
| 6156 | DIP(" => not implemented\n"); |
| 6157 | return False; |
| 6158 | |
| 6159 | default: |
| 6160 | break; // Fall through... |
| 6161 | } |
| 6162 | |
| 6163 | if (UIMM_5 != 0) { |
| 6164 | vex_printf("dis_av_fp_convert(PPC32)(UIMM_5)\n"); |
| 6165 | return False; |
| 6166 | } |
| 6167 | |
| 6168 | switch (opc2) { |
| 6169 | case 0x20A: // vrfin (Round to FP Integer Nearest, AV p231) |
| 6170 | DIP("vrfin v%d,v%d\n", vD_addr, vB_addr); |
| 6171 | DIP(" => not implemented\n"); |
| 6172 | return False; |
| 6173 | |
| 6174 | case 0x24A: // vrfiz (Round to FP Integer toward zero, AV p233) |
| 6175 | DIP("vrfiz v%d,v%d\n", vD_addr, vB_addr); |
| 6176 | DIP(" => not implemented\n"); |
| 6177 | return False; |
| 6178 | |
| 6179 | case 0x28A: // vrfip (Round to FP Integer toward +inf, AV p232) |
| 6180 | DIP("vrfip v%d,v%d\n", vD_addr, vB_addr); |
| 6181 | DIP(" => not implemented\n"); |
| 6182 | return False; |
| 6183 | |
| 6184 | case 0x2CA: // vrfim (Round to FP Integer toward -inf, AV p230) |
| 6185 | DIP("vrfim v%d,v%d\n", vD_addr, vB_addr); |
| 6186 | DIP(" => not implemented\n"); |
| 6187 | return False; |
| 6188 | |
| 6189 | default: |
| 6190 | vex_printf("dis_av_fp_convert(PPC32)(opc2)\n"); |
| 6191 | return False; |
| 6192 | } |
| 6193 | return True; |
| 6194 | } |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 6195 | |
| 6196 | |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 6197 | |
| 6198 | |
| 6199 | |
| 6200 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6201 | /*------------------------------------------------------------*/ |
| 6202 | /*--- Disassemble a single instruction ---*/ |
| 6203 | /*------------------------------------------------------------*/ |
| 6204 | |
| 6205 | /* Disassemble a single instruction into IR. The instruction |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6206 | is located in host memory at &guest_code[delta]. */ |
| 6207 | |
| 6208 | static |
| 6209 | DisResult disInstr_PPC32_WRK ( |
| 6210 | Bool put_IP, |
| 6211 | Bool (*resteerOkFn) ( Addr64 ), |
| 6212 | Long delta64, |
| 6213 | VexArchInfo* archinfo |
| 6214 | ) |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6215 | { |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6216 | UChar opc1; |
| 6217 | UInt opc2; |
| 6218 | DisResult dres; |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6219 | UInt theInstr; |
| 6220 | |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6221 | /* The running delta */ |
| 6222 | Int delta = (Int)delta64; |
| 6223 | |
| 6224 | /* Set result defaults. */ |
| 6225 | dres.whatNext = Dis_Continue; |
| 6226 | dres.len = 0; |
| 6227 | dres.continueAt = 0; |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6228 | |
cerion | 1515db9 | 2005-01-25 17:21:23 +0000 | [diff] [blame] | 6229 | /* At least this is simple on PPC32: insns are all 4 bytes long, and |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6230 | 4-aligned. So just fish the whole thing out of memory right now |
| 6231 | and have done. */ |
cerion | cf00446 | 2005-01-31 15:24:55 +0000 | [diff] [blame] | 6232 | theInstr = getUIntBigendianly( (UChar*)(&guest_code[delta]) ); |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6233 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6234 | DIP("\t0x%x: ", guest_CIA_curr_instr); |
| 6235 | |
| 6236 | /* We may be asked to update the guest CIA before going further. */ |
| 6237 | if (put_IP) |
| 6238 | putSPR( PPC32_SPR_CIA, mkU32(guest_CIA_curr_instr) ); |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6239 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6240 | /* Spot the client-request magic sequence. */ |
| 6241 | // Essentially a v. unlikely sequence of noops that we can catch |
| 6242 | { |
sewardj | 2f52de4 | 2005-07-03 01:51:29 +0000 | [diff] [blame] | 6243 | UChar* code = (UChar*)(&guest_code[delta]); |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6244 | |
| 6245 | /* Spot this: |
sewardj | 2f52de4 | 2005-07-03 01:51:29 +0000 | [diff] [blame] | 6246 | 0x7C03D808 tw 0,3,27 => trap word if (0) => nop |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6247 | 0x5400E800 rlwinm 0,0,29,0,0 => r0 = rotl(r0,29) |
| 6248 | 0x54001800 rlwinm 0,0,3,0,0 => r0 = rotl(r0,3) |
| 6249 | 0x54006800 rlwinm 0,0,13,0,0 => r0 = rotl(r0,13) |
| 6250 | 0x54009800 rlwinm 0,0,19,0,0 => r0 = rotl(r0,19) |
cerion | 0fe6b7e | 2005-06-20 16:28:32 +0000 | [diff] [blame] | 6251 | 0x60000000 nop |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6252 | */ |
sewardj | 2f52de4 | 2005-07-03 01:51:29 +0000 | [diff] [blame] | 6253 | if (getUIntBigendianly(code+ 0) == 0x7C03D808 && |
| 6254 | getUIntBigendianly(code+ 4) == 0x5400E800 && |
| 6255 | getUIntBigendianly(code+ 8) == 0x54001800 && |
| 6256 | getUIntBigendianly(code+12) == 0x54006800 && |
| 6257 | getUIntBigendianly(code+16) == 0x54009800 && |
| 6258 | getUIntBigendianly(code+20) == 0x60000000) { |
cerion | 84ad616 | 2005-06-23 15:25:57 +0000 | [diff] [blame] | 6259 | DIP("%%r3 = client_request ( %%r31 )\n"); |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6260 | dres.len = 24; |
cerion | ed623db | 2005-06-20 12:42:04 +0000 | [diff] [blame] | 6261 | delta += 24; |
| 6262 | |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6263 | irbb->next = mkU32(guest_CIA_bbstart+delta); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6264 | irbb->jumpkind = Ijk_ClientReq; |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6265 | dres.whatNext = Dis_StopHere; |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6266 | goto decode_success; |
| 6267 | } |
| 6268 | } |
| 6269 | |
| 6270 | |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 6271 | opc1 = toUChar(ifieldOPC(theInstr)); |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6272 | opc2 = ifieldOPClo10(theInstr); |
cerion | 932ad94 | 2005-01-30 10:18:50 +0000 | [diff] [blame] | 6273 | |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 6274 | #if 0 //PPC32_TOIR_DEBUG |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 6275 | vex_printf("\ndisInstr(ppc32): instr: 0x%x\n", theInstr); |
| 6276 | vex_printf("disInstr(ppc32): instr: "); |
| 6277 | vex_printf_binary( theInstr, 32, True ); |
| 6278 | vex_printf("\n"); |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 6279 | #endif |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6280 | |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 6281 | |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 6282 | // Note: all 'reserved' bits must be cleared, else invalid |
| 6283 | switch (opc1) { |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6284 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6285 | /* Integer Arithmetic Instructions */ |
| 6286 | case 0x0C: case 0x0D: case 0x0E: // addic, addic., addi |
| 6287 | case 0x0F: case 0x07: case 0x08: // addis, mulli, subfic |
| 6288 | if (dis_int_arith( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6289 | goto decode_failure; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 6290 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6291 | /* Integer Compare Instructions */ |
| 6292 | case 0x0B: case 0x0A: // cmpi, cmpli |
| 6293 | if (dis_int_cmp( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6294 | goto decode_failure; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 6295 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6296 | /* Integer Logical Instructions */ |
| 6297 | case 0x1C: case 0x1D: case 0x18: // andi., andis., ori |
| 6298 | case 0x19: case 0x1A: case 0x1B: // oris, xori, xoris |
| 6299 | if (dis_int_logic( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6300 | goto decode_failure; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 6301 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6302 | /* Integer Rotate Instructions */ |
| 6303 | case 0x14: case 0x15: case 0x17: // rlwimi, rlwinm, rlwnm |
| 6304 | if (dis_int_rot( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6305 | goto decode_failure; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 6306 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6307 | /* Integer Load Instructions */ |
| 6308 | case 0x22: case 0x23: case 0x2A: // lbz, lbzu, lha |
| 6309 | case 0x2B: case 0x28: case 0x29: // lhau, lhz, lhzu |
| 6310 | case 0x20: case 0x21: // lwz, lwzu |
| 6311 | if (dis_int_load( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6312 | goto decode_failure; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 6313 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6314 | /* Integer Store Instructions */ |
| 6315 | case 0x26: case 0x27: case 0x2C: // stb, stbu, sth |
| 6316 | case 0x2D: case 0x24: case 0x25: // sthu, stw, stwu |
| 6317 | if (dis_int_store( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6318 | goto decode_failure; |
cerion | d23be4e | 2005-01-31 07:23:07 +0000 | [diff] [blame] | 6319 | |
sewardj | 7787af4 | 2005-08-04 18:32:19 +0000 | [diff] [blame] | 6320 | /* Integer Load and Store Multiple Instructions */ |
| 6321 | case 0x2E: case 0x2F: // lmw, stmw |
| 6322 | if (dis_int_ldst_mult( theInstr )) goto decode_success; |
| 6323 | goto decode_failure; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 6324 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6325 | /* Branch Instructions */ |
| 6326 | case 0x12: case 0x10: // b, bc |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6327 | if (dis_branch(theInstr, &dres)) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6328 | goto decode_failure; |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6329 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6330 | /* System Linkage Instructions */ |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 6331 | case 0x11: // sc |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6332 | if (dis_syslink(theInstr, &dres)) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6333 | goto decode_failure; |
cerion | 26d07b2 | 2005-02-02 17:13:28 +0000 | [diff] [blame] | 6334 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6335 | //zz /* Trap Instructions */ |
| 6336 | //zz case 0x03: // twi |
| 6337 | //zz DIP("trap op (twi) => not implemented\n"); |
| 6338 | //zz goto decode_failure; |
cerion | 8c3adda | 2005-01-31 11:54:05 +0000 | [diff] [blame] | 6339 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 6340 | /* Floating Point Load Instructions */ |
cerion | 094d139 | 2005-06-20 13:45:57 +0000 | [diff] [blame] | 6341 | case 0x30: case 0x31: case 0x32: // lfs, lfsu, lfd |
| 6342 | case 0x33: // lfdu |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 6343 | if (dis_fp_load( theInstr )) goto decode_success; |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6344 | goto decode_failure; |
cerion | 995bc36 | 2005-02-03 11:03:31 +0000 | [diff] [blame] | 6345 | |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 6346 | /* Floating Point Store Instructions */ |
| 6347 | case 0x34: case 0x35: case 0x36: // stfsx, stfsux, stfdx |
| 6348 | case 0x37: // stfdux |
| 6349 | if (dis_fp_store( theInstr )) goto decode_success; |
| 6350 | goto decode_failure; |
| 6351 | |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 6352 | case 0x3B: |
| 6353 | opc2 = (theInstr >> 1) & 0x1F; /* theInstr[1:5] */ |
| 6354 | switch (opc2) { |
| 6355 | /* Floating Point Arith Instructions */ |
| 6356 | case 0x12: case 0x14: case 0x15: // fdivs, fsubs, fadds |
| 6357 | case 0x16: case 0x18: case 0x19: // fsqrts, fres, fmuls |
| 6358 | if (dis_fp_arith(theInstr)) goto decode_success; |
| 6359 | goto decode_failure; |
| 6360 | |
| 6361 | /* Floating Point Mult-Add Instructions */ |
| 6362 | case 0x1C: case 0x1D: case 0x1E: // fmsubs, fmadds, fnmsubs |
| 6363 | case 0x1F: // fnmadds |
| 6364 | if (dis_fp_multadd(theInstr)) goto decode_success; |
| 6365 | goto decode_failure; |
| 6366 | |
| 6367 | default: |
| 6368 | goto decode_failure; |
| 6369 | } |
| 6370 | break; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 6371 | |
| 6372 | case 0x3F: |
| 6373 | /* Instrs using opc[1:5] never overlap with instrs using opc[1:10], |
| 6374 | so we can simply fall through the first switch statement */ |
| 6375 | |
| 6376 | opc2 = (theInstr >> 1) & 0x1F; /* theInstr[1:5] */ |
| 6377 | switch (opc2) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6378 | /* Floating Point Arith Instructions */ |
| 6379 | case 0x12: case 0x14: case 0x15: // fdiv, fsub, fadd |
| 6380 | case 0x16: case 0x17: case 0x19: // fsqrt, fsel, fmul |
| 6381 | case 0x1A: // frsqrte |
| 6382 | if (dis_fp_arith(theInstr)) goto decode_success; |
| 6383 | goto decode_failure; |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 6384 | |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 6385 | /* Floating Point Mult-Add Instructions */ |
| 6386 | case 0x1C: case 0x1D: case 0x1E: // fmsub, fmadd, fnmsub |
| 6387 | case 0x1F: // fnmadd |
| 6388 | if (dis_fp_multadd(theInstr)) goto decode_success; |
| 6389 | goto decode_failure; |
| 6390 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6391 | default: |
| 6392 | break; // Fall through |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 6393 | } |
| 6394 | |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 6395 | opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 6396 | switch (opc2) { |
| 6397 | /* Floating Point Compare Instructions */ |
| 6398 | case 0x000: // fcmpu |
| 6399 | case 0x020: // fcmpo |
| 6400 | if (dis_fp_cmp(theInstr)) goto decode_success; |
| 6401 | goto decode_failure; |
| 6402 | |
| 6403 | /* Floating Point Rounding/Conversion Instructions */ |
| 6404 | case 0x00C: // frsp |
| 6405 | case 0x00E: // fctiw |
| 6406 | case 0x00F: // fctiwz |
| 6407 | if (dis_fp_round(theInstr)) goto decode_success; |
| 6408 | goto decode_failure; |
| 6409 | |
| 6410 | /* Floating Point Move Instructions */ |
| 6411 | case 0x028: // fneg |
| 6412 | case 0x048: // fmr |
| 6413 | case 0x088: // fnabs |
| 6414 | case 0x108: // fabs |
| 6415 | if (dis_fp_move( theInstr )) goto decode_success; |
| 6416 | goto decode_failure; |
| 6417 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6418 | //zz /* Floating Point Status/Control Register Instructions */ |
| 6419 | //zz case 0x026: // mtfsb1 |
| 6420 | //zz case 0x040: // mcrfs |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 6421 | case 0x046: // mtfsb0 |
| 6422 | case 0x086: // mtfsfi |
| 6423 | case 0x247: // mffs |
| 6424 | case 0x2C7: // mtfsf |
| 6425 | if (dis_fp_scr( theInstr )) goto decode_success; |
| 6426 | goto decode_failure; |
| 6427 | default: |
| 6428 | goto decode_failure; |
| 6429 | } |
cerion | 3d870a3 | 2005-03-18 12:23:33 +0000 | [diff] [blame] | 6430 | break; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 6431 | |
| 6432 | case 0x13: |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6433 | switch (opc2) { |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 6434 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6435 | /* Condition Register Logical Instructions */ |
| 6436 | case 0x101: case 0x081: case 0x121: // crand, crandc, creqv |
| 6437 | case 0x0E1: case 0x021: case 0x1C1: // crnand, crnor, cror |
| 6438 | case 0x1A1: case 0x0C1: case 0x000: // crorc, crxor, mcrf |
| 6439 | if (dis_cond_logic( theInstr )) goto decode_success; |
| 6440 | goto decode_failure; |
cerion | 26d07b2 | 2005-02-02 17:13:28 +0000 | [diff] [blame] | 6441 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6442 | /* Branch Instructions */ |
| 6443 | case 0x210: case 0x010: // bcctr, bclr |
| 6444 | if (dis_branch(theInstr, &dres)) goto decode_success; |
| 6445 | goto decode_failure; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 6446 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6447 | /* Memory Synchronization Instructions */ |
| 6448 | case 0x096: // isync |
| 6449 | if (dis_memsync( theInstr )) goto decode_success; |
| 6450 | goto decode_failure; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6451 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6452 | default: |
| 6453 | goto decode_failure; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6454 | } |
| 6455 | break; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 6456 | |
| 6457 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6458 | case 0x1F: |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6459 | |
| 6460 | /* For arith instns, bit10 is the OE flag (overflow enable) */ |
| 6461 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6462 | opc2 = (theInstr >> 1) & 0x1FF; /* theInstr[1:9] */ |
| 6463 | switch (opc2) { |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6464 | /* Integer Arithmetic Instructions */ |
| 6465 | case 0x10A: case 0x00A: case 0x08A: // add, addc, adde |
| 6466 | case 0x0EA: case 0x0CA: case 0x1EB: // addme, addze, divw |
| 6467 | case 0x1CB: case 0x04B: case 0x00B: // divwu, mulhw, mulhwu |
| 6468 | case 0x0EB: case 0x068: case 0x028: // mullw, neg, subf |
| 6469 | case 0x008: case 0x088: case 0x0E8: // subfc, subfe, subfme |
| 6470 | case 0x0C8: // subfze |
| 6471 | if (dis_int_arith( theInstr )) goto decode_success; |
| 6472 | goto decode_failure; |
| 6473 | default: |
| 6474 | break; // Fall through... |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6475 | } |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 6476 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6477 | /* All remaining opcodes use full 10 bits. */ |
| 6478 | |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6479 | opc2 = (theInstr >> 1) & 0x3FF; /* theInstr[1:10] */ |
| 6480 | switch (opc2) { |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6481 | /* Integer Compare Instructions */ |
| 6482 | case 0x000: case 0x020: // cmp, cmpl |
| 6483 | if (dis_int_cmp( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6484 | goto decode_failure; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 6485 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6486 | /* Integer Logical Instructions */ |
| 6487 | case 0x01C: case 0x03C: case 0x01A: // and, andc, cntlzw |
| 6488 | case 0x11C: case 0x3BA: case 0x39A: // eqv, extsb, extsh |
| 6489 | case 0x1DC: case 0x07C: case 0x1BC: // nand, nor, or |
| 6490 | case 0x19C: case 0x13C: // orc, xor |
| 6491 | if (dis_int_logic( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6492 | goto decode_failure; |
cerion | 932ad94 | 2005-01-30 10:18:50 +0000 | [diff] [blame] | 6493 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6494 | /* Integer Shift Instructions */ |
| 6495 | case 0x018: case 0x318: case 0x338: // slw, sraw, srawi |
| 6496 | case 0x218: // srw |
| 6497 | if (dis_int_shift( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6498 | goto decode_failure; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 6499 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6500 | /* Integer Load Instructions */ |
| 6501 | case 0x057: case 0x077: case 0x157: // lbzx, lbzux, lhax |
| 6502 | case 0x177: case 0x117: case 0x137: // lhaux, lhzx, lhzux |
| 6503 | case 0x017: case 0x037: // lwzx, lwzux |
| 6504 | if (dis_int_load( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6505 | goto decode_failure; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 6506 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6507 | /* Integer Store Instructions */ |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6508 | case 0x0F7: case 0x0D7: case 0x1B7: // stbux, stbx, sthux |
| 6509 | case 0x197: case 0x0B7: case 0x097: // sthx, stwux, stwx |
| 6510 | if (dis_int_store( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6511 | goto decode_failure; |
cerion | 91ad536 | 2005-01-27 23:02:41 +0000 | [diff] [blame] | 6512 | |
sewardj | 602857d | 2005-09-06 09:10:09 +0000 | [diff] [blame] | 6513 | /* Integer Load and Store with Byte Reverse Instructions */ |
| 6514 | case 0x316: case 0x216: case 0x396: // lhbrx, lwbrx, sthbrx |
| 6515 | case 0x296: // stwbrx |
| 6516 | if (dis_int_ldst_rev( theInstr )) goto decode_success; |
| 6517 | goto decode_failure; |
| 6518 | |
sewardj | 87e651f | 2005-09-09 08:31:18 +0000 | [diff] [blame] | 6519 | /* Integer Load and Store String Instructions */ |
| 6520 | case 0x255: case 0x215: case 0x2D5: // lswi, lswx, stswi |
| 6521 | case 0x295: { // stswx |
| 6522 | Bool stopHere = False; |
| 6523 | Bool ok = dis_int_ldst_str( theInstr, &stopHere ); |
| 6524 | if (!ok) goto decode_failure; |
| 6525 | if (stopHere) { |
| 6526 | irbb->next = mkU32(guest_CIA_curr_instr+4); |
| 6527 | irbb->jumpkind = Ijk_Boring; |
| 6528 | dres.whatNext = Dis_StopHere; |
| 6529 | } |
| 6530 | goto decode_success; |
| 6531 | } |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 6532 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6533 | /* Memory Synchronization Instructions */ |
| 6534 | case 0x356: case 0x014: case 0x096: // eieio, lwarx, stwcx. |
| 6535 | case 0x256: // sync |
| 6536 | if (dis_memsync( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6537 | goto decode_failure; |
| 6538 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6539 | /* Processor Control Instructions */ |
| 6540 | case 0x200: case 0x013: case 0x153: // mcrxr, mfcr, mfspr |
| 6541 | case 0x173: case 0x090: case 0x1D3: // mftb, mtcrf, mtspr |
| 6542 | if (dis_proc_ctl( theInstr )) goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6543 | goto decode_failure; |
cerion | 645c930 | 2005-01-31 10:09:59 +0000 | [diff] [blame] | 6544 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6545 | /* Cache Management Instructions */ |
| 6546 | case 0x2F6: case 0x056: case 0x036: // dcba, dcbf, dcbst |
| 6547 | case 0x116: case 0x0F6: case 0x3F6: // dcbt, dcbtst, dcbz |
| 6548 | case 0x3D6: // icbi |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6549 | if (dis_cache_manage( theInstr, &dres, archinfo )) |
sewardj | d94b73a | 2005-06-30 12:08:48 +0000 | [diff] [blame] | 6550 | goto decode_success; |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6551 | goto decode_failure; |
cerion | d23be4e | 2005-01-31 07:23:07 +0000 | [diff] [blame] | 6552 | |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6553 | //zz /* External Control Instructions */ |
| 6554 | //zz case 0x136: case 0x1B6: // eciwx, ecowx |
| 6555 | //zz DIP("external control op => not implemented\n"); |
| 6556 | //zz goto decode_failure; |
| 6557 | //zz |
| 6558 | //zz /* Trap Instructions */ |
| 6559 | //zz case 0x004: // tw |
| 6560 | //zz DIP("trap op (tw) => not implemented\n"); |
| 6561 | //zz goto decode_failure; |
sewardj | e14bb9f | 2005-07-22 09:39:02 +0000 | [diff] [blame] | 6562 | |
| 6563 | /* Floating Point Load Instructions */ |
| 6564 | case 0x217: case 0x237: case 0x257: // lfsx, lfsux, lfdx |
| 6565 | case 0x277: // lfdux |
| 6566 | if (dis_fp_load( theInstr )) goto decode_success; |
| 6567 | goto decode_failure; |
| 6568 | |
| 6569 | /* Floating Point Store Instructions */ |
| 6570 | case 0x297: case 0x2B7: case 0x2D7: // stfs, stfsu, stfd |
| 6571 | case 0x2F7: case 0x3D7: // stfdu, stfiwx |
| 6572 | if (dis_fp_store( theInstr )) goto decode_success; |
| 6573 | goto decode_failure; |
| 6574 | |
| 6575 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 6576 | /* AltiVec instructions */ |
| 6577 | |
| 6578 | /* AV Cache Control - Data streams */ |
| 6579 | case 0x156: case 0x176: case 0x336: // dst, dstst, dss |
| 6580 | if (dis_av_datastream( theInstr )) goto decode_success; |
| 6581 | goto decode_failure; |
cerion | a982c05 | 2005-06-28 17:23:09 +0000 | [diff] [blame] | 6582 | |
| 6583 | /* AV Load */ |
| 6584 | case 0x006: case 0x026: // lvsl, lvsr |
| 6585 | case 0x007: case 0x027: case 0x047: // lvebx, lvehx, lvewx |
| 6586 | case 0x067: case 0x167: // lvx, lvxl |
| 6587 | if (dis_av_load( theInstr )) goto decode_success; |
| 6588 | goto decode_failure; |
| 6589 | |
| 6590 | /* AV Store */ |
| 6591 | case 0x087: case 0x0A7: case 0x0C7: // stvebx, stvehx, stvewx |
| 6592 | case 0x0E7: case 0x1E7: // stvx, stvxl |
| 6593 | if (dis_av_store( theInstr )) goto decode_success; |
| 6594 | goto decode_failure; |
| 6595 | |
| 6596 | default: |
| 6597 | goto decode_failure; |
| 6598 | } |
| 6599 | break; |
| 6600 | |
| 6601 | |
cerion | 32aad40 | 2005-09-10 12:02:24 +0000 | [diff] [blame] | 6602 | case 0x04: |
| 6603 | /* AltiVec instructions */ |
| 6604 | |
| 6605 | opc2 = (theInstr) & 0x3F; /* theInstr[0:5] */ |
| 6606 | switch (opc2) { |
| 6607 | /* AV Mult-Add, Mult-Sum */ |
| 6608 | case 0x20: case 0x21: case 0x22: // vmhaddshs, vmhraddshs, vmladduhm |
| 6609 | case 0x24: case 0x25: case 0x26: // vmsumubm, vmsummbm, vmsumuhm |
| 6610 | case 0x27: case 0x28: case 0x29: // vmsumuhs, vmsumshm, vmsumshs |
| 6611 | if (dis_av_multarith( theInstr )) goto decode_success; |
| 6612 | goto decode_failure; |
| 6613 | |
| 6614 | /* AV Permutations */ |
| 6615 | case 0x2A: // vsel |
| 6616 | case 0x2B: // vperm |
| 6617 | if (dis_av_permute( theInstr )) goto decode_success; |
| 6618 | goto decode_failure; |
| 6619 | |
| 6620 | /* AV Shift */ |
| 6621 | case 0x2C: // vsldoi |
| 6622 | if (dis_av_shift( theInstr )) goto decode_success; |
| 6623 | goto decode_failure; |
| 6624 | |
| 6625 | /* AV Floating Point Mult-Add/Sub */ |
| 6626 | case 0x2E: case 0x2F: // vmaddfp, vnmsubfp |
| 6627 | if (dis_av_fp_arith( theInstr )) goto decode_success; |
| 6628 | goto decode_failure; |
| 6629 | |
| 6630 | default: |
| 6631 | break; // Fall through... |
| 6632 | } |
| 6633 | |
| 6634 | opc2 = (theInstr) & 0x7FF; /* theInstr[0:10] */ |
| 6635 | switch (opc2) { |
| 6636 | /* AV Arithmetic */ |
| 6637 | case 0x180: // vaddcuw |
| 6638 | case 0x000: case 0x040: case 0x080: // vaddubm, vadduhm, vadduwm |
| 6639 | case 0x200: case 0x240: case 0x280: // vaddubs, vadduhs, vadduws |
| 6640 | case 0x300: case 0x340: case 0x380: // vaddsbs, vaddshs, vaddsws |
| 6641 | case 0x580: // vsubcuw |
| 6642 | case 0x400: case 0x440: case 0x480: // vsububm, vsubuhm, vsubuwm |
| 6643 | case 0x600: case 0x640: case 0x680: // vsububs, vsubuhs, vsubuws |
| 6644 | case 0x700: case 0x740: case 0x780: // vsubsbs, vsubshs, vsubsws |
| 6645 | case 0x402: case 0x442: case 0x482: // vavgub, vavguh, vavguw |
| 6646 | case 0x502: case 0x542: case 0x582: // vavgsb, vavgsh, vavgsw |
| 6647 | case 0x002: case 0x042: case 0x082: // vmaxub, vmaxuh, vmaxuw |
| 6648 | case 0x102: case 0x142: case 0x182: // vmaxsb, vmaxsh, vmaxsw |
| 6649 | case 0x202: case 0x242: case 0x282: // vminub, vminuh, vminuw |
| 6650 | case 0x302: case 0x342: case 0x382: // vminsb, vminsh, vminsw |
| 6651 | case 0x008: case 0x048: // vmuloub, vmulouh |
| 6652 | case 0x108: case 0x148: // vmulosb, vmulosh |
| 6653 | case 0x208: case 0x248: // vmuleub, vmuleuh |
| 6654 | case 0x308: case 0x348: // vmulesb, vmulesh |
| 6655 | case 0x608: case 0x708: case 0x648: // vsum4ubs, vsum4sbs, vsum4shs |
| 6656 | case 0x688: case 0x788: // vsum2sws, vsumsws |
| 6657 | if (dis_av_arith( theInstr )) goto decode_success; |
| 6658 | goto decode_failure; |
| 6659 | |
| 6660 | /* AV Rotate, Shift */ |
| 6661 | case 0x004: case 0x044: case 0x084: // vrlb, vrlh, vrlw |
| 6662 | case 0x104: case 0x144: case 0x184: // vslb, vslh, vslw |
| 6663 | case 0x204: case 0x244: case 0x284: // vsrb, vsrh, vsrw |
| 6664 | case 0x304: case 0x344: case 0x384: // vsrab, vsrah, vsraw |
| 6665 | case 0x1C4: case 0x2C4: // vsl, vsr |
| 6666 | case 0x40C: case 0x44C: // vslo, vsro |
| 6667 | if (dis_av_shift( theInstr )) goto decode_success; |
| 6668 | goto decode_failure; |
| 6669 | |
| 6670 | /* AV Logic */ |
| 6671 | case 0x404: case 0x444: case 0x484: // vand, vandc, vor |
| 6672 | case 0x4C4: case 0x504: // vxor, vnor |
| 6673 | if (dis_av_logic( theInstr )) goto decode_success; |
| 6674 | goto decode_failure; |
| 6675 | |
| 6676 | /* AV Processor Control */ |
| 6677 | case 0x604: case 0x644: // mfvscr, mtvscr |
| 6678 | if (dis_av_procctl( theInstr )) goto decode_success; |
| 6679 | goto decode_failure; |
| 6680 | |
| 6681 | /* AV Floating Point Arithmetic */ |
| 6682 | case 0x00A: case 0x04A: // vaddfp, vsubfp |
| 6683 | case 0x10A: case 0x14A: case 0x18A: // vrefp, vrsqrtefp, vexptefp |
| 6684 | case 0x1CA: // vlogefp |
| 6685 | case 0x40A: case 0x44A: // vmaxfp, vminfp |
| 6686 | if (dis_av_fp_arith( theInstr )) goto decode_success; |
| 6687 | goto decode_failure; |
| 6688 | |
| 6689 | /* AV Floating Point Round/Convert */ |
| 6690 | case 0x20A: case 0x24A: case 0x28A: // vrfin, vrfiz, vrfip |
| 6691 | case 0x2CA: // vrfim |
| 6692 | case 0x30A: case 0x34A: case 0x38A: // vcfux, vcfsx, vctuxs |
| 6693 | case 0x3CA: // vctsxs |
| 6694 | if (dis_av_fp_convert( theInstr )) goto decode_success; |
| 6695 | goto decode_failure; |
| 6696 | |
| 6697 | /* AV Merge, Splat */ |
| 6698 | case 0x00C: case 0x04C: case 0x08C: // vmrghb, vmrghh, vmrghw |
| 6699 | case 0x10C: case 0x14C: case 0x18C: // vmrglb, vmrglh, vmrglw |
| 6700 | case 0x20C: case 0x24C: case 0x28C: // vspltb, vsplth, vspltw |
| 6701 | case 0x30C: case 0x34C: case 0x38C: // vspltisb, vspltish, vspltisw |
| 6702 | if (dis_av_permute( theInstr )) goto decode_success; |
| 6703 | goto decode_failure; |
| 6704 | |
| 6705 | /* AV Pack, Unpack */ |
| 6706 | case 0x00E: case 0x04E: case 0x08E: // vpkuhum, vpkuwum, vpkuhus |
| 6707 | case 0x0CE: // vpkuwus |
| 6708 | case 0x10E: case 0x14E: case 0x18E: // vpkshus, vpkswus, vpkshss |
| 6709 | case 0x1CE: // vpkswss |
| 6710 | case 0x20E: case 0x24E: case 0x28E: // vupkhsb, vupkhsh, vupklsb |
| 6711 | case 0x2CE: // vupklsh |
| 6712 | case 0x30E: case 0x34E: case 0x3CE: // vpkpx, vupkhpx, vupklpx |
| 6713 | if (dis_av_pack( theInstr )) goto decode_success; |
| 6714 | goto decode_failure; |
| 6715 | |
| 6716 | default: |
| 6717 | break; // Fall through... |
| 6718 | } |
| 6719 | |
| 6720 | opc2 = (theInstr) & 0x3FF; /* theInstr[0:9] (Bit 10 = Rc)*/ |
| 6721 | switch (opc2) { |
| 6722 | |
| 6723 | /* AV Compare */ |
| 6724 | case 0x006: case 0x046: case 0x086: // vcmpequb, vcmpequh, vcmpequw |
| 6725 | case 0x206: case 0x246: case 0x286: // vcmpgtub, vcmpgtuh, vcmpgtuw |
| 6726 | case 0x306: case 0x346: case 0x386: // vcmpgtsb, vcmpgtsh, vcmpgtsw |
| 6727 | if (dis_av_cmp( theInstr )) goto decode_success; |
| 6728 | goto decode_failure; |
| 6729 | |
| 6730 | /* AV Floating Point Compare */ |
| 6731 | case 0x0C6: case 0x1C6: case 0x2C6: // vcmpeqfp, vcmpgefp, vcmpgtfp |
| 6732 | case 0x3C6: // vcmpbfp |
| 6733 | if (dis_av_fp_cmp( theInstr )) goto decode_success; |
| 6734 | goto decode_failure; |
| 6735 | |
| 6736 | default: |
| 6737 | goto decode_failure; |
| 6738 | } |
| 6739 | break; |
cerion | 7aa4bbc | 2005-01-29 09:32:07 +0000 | [diff] [blame] | 6740 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6741 | default: |
| 6742 | decode_failure: |
| 6743 | /* All decode failures end up here. */ |
cerion | 225a034 | 2005-09-12 20:49:09 +0000 | [diff] [blame] | 6744 | opc2 = (theInstr) & 0x7FF; |
cerion | 1515db9 | 2005-01-25 17:21:23 +0000 | [diff] [blame] | 6745 | vex_printf("disInstr(ppc32): unhandled instruction: " |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6746 | "0x%x\n", theInstr); |
sewardj | c7cd214 | 2005-09-09 22:31:49 +0000 | [diff] [blame] | 6747 | vex_printf(" primary %d(0x%x), secondary %u(0x%x)\n", |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6748 | opc1, opc1, opc2, opc2); |
cerion | b85e8bb | 2005-02-16 08:54:33 +0000 | [diff] [blame] | 6749 | |
cerion | e9d361a | 2005-03-04 17:35:29 +0000 | [diff] [blame] | 6750 | #if PPC32_TOIR_DEBUG |
cerion | 995bc36 | 2005-02-03 11:03:31 +0000 | [diff] [blame] | 6751 | vex_printf("disInstr(ppc32): instr: "); |
| 6752 | vex_printf_binary( theInstr, 32, True ); |
| 6753 | vex_printf("\n"); |
| 6754 | |
| 6755 | vex_printf("disInstr(ppc32): opcode1: "); |
| 6756 | vex_printf_binary( opc1, 6, False ); |
| 6757 | vex_printf("\n"); |
| 6758 | |
| 6759 | vex_printf("disInstr(ppc32): opcode2: "); |
| 6760 | vex_printf_binary( opc2, 10, False ); |
cerion | 45552a9 | 2005-02-03 18:20:22 +0000 | [diff] [blame] | 6761 | vex_printf("\n\n"); |
| 6762 | #endif |
cerion | 995bc36 | 2005-02-03 11:03:31 +0000 | [diff] [blame] | 6763 | |
| 6764 | |
sewardj | 01a9e80 | 2005-02-01 20:46:00 +0000 | [diff] [blame] | 6765 | /* Tell the dispatcher that this insn cannot be decoded, and so has |
| 6766 | not been executed, and (is currently) the next to be executed. |
| 6767 | CIA should be up-to-date since it made so at the start of each |
| 6768 | insn, but nevertheless be paranoid and update it again right |
| 6769 | now. */ |
sewardj | b51f0f4 | 2005-07-18 11:38:02 +0000 | [diff] [blame] | 6770 | putSPR( PPC32_SPR_CIA, mkU32(guest_CIA_curr_instr) ); |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6771 | irbb->next = mkU32(guest_CIA_curr_instr); |
sewardj | 01a9e80 | 2005-02-01 20:46:00 +0000 | [diff] [blame] | 6772 | irbb->jumpkind = Ijk_NoDecode; |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6773 | dres.whatNext = Dis_StopHere; |
| 6774 | dres.len = 0; |
| 6775 | return dres; |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6776 | |
| 6777 | } /* switch (opc) for the main (primary) opcode switch. */ |
| 6778 | |
| 6779 | decode_success: |
| 6780 | /* All decode successes end up here. */ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6781 | DIP("\n"); |
| 6782 | |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6783 | dres.len = 4; |
| 6784 | return dres; |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6785 | } |
| 6786 | |
| 6787 | #undef DIP |
| 6788 | #undef DIS |
| 6789 | |
sewardj | 9e6491a | 2005-07-02 19:24:10 +0000 | [diff] [blame] | 6790 | |
| 6791 | /*------------------------------------------------------------*/ |
| 6792 | /*--- Top-level fn ---*/ |
| 6793 | /*------------------------------------------------------------*/ |
| 6794 | |
| 6795 | /* Disassemble a single instruction into IR. The instruction |
| 6796 | is located in host memory at &guest_code[delta]. */ |
| 6797 | |
| 6798 | DisResult disInstr_PPC32 ( IRBB* irbb_IN, |
| 6799 | Bool put_IP, |
| 6800 | Bool (*resteerOkFn) ( Addr64 ), |
| 6801 | UChar* guest_code_IN, |
| 6802 | Long delta, |
| 6803 | Addr64 guest_IP, |
| 6804 | VexArchInfo* archinfo, |
| 6805 | Bool host_bigendian_IN ) |
| 6806 | { |
| 6807 | DisResult dres; |
| 6808 | |
| 6809 | /* Set globals (see top of this file) */ |
| 6810 | guest_code = guest_code_IN; |
| 6811 | irbb = irbb_IN; |
| 6812 | host_is_bigendian = host_bigendian_IN; |
| 6813 | guest_CIA_curr_instr = (Addr32)guest_IP; |
| 6814 | guest_CIA_bbstart = (Addr32)toUInt(guest_IP - delta); |
| 6815 | |
| 6816 | dres = disInstr_PPC32_WRK ( put_IP, resteerOkFn, |
| 6817 | delta, archinfo ); |
| 6818 | |
| 6819 | return dres; |
| 6820 | } |
| 6821 | |
| 6822 | |
sewardj | c808ef7 | 2005-08-18 11:50:43 +0000 | [diff] [blame] | 6823 | /*------------------------------------------------------------*/ |
| 6824 | /*--- Unused stuff ---*/ |
| 6825 | /*------------------------------------------------------------*/ |
| 6826 | |
| 6827 | ///* A potentially more memcheck-friendly implementation of Clz32, with |
| 6828 | // the boundary case Clz32(0) = 32, which is what ppc requires. */ |
| 6829 | // |
| 6830 | //static IRExpr* /* :: Ity_I32 */ verbose_Clz32 ( IRTemp arg ) |
| 6831 | //{ |
| 6832 | // /* Welcome ... to SSA R Us. */ |
| 6833 | // IRTemp n1 = newTemp(Ity_I32); |
| 6834 | // IRTemp n2 = newTemp(Ity_I32); |
| 6835 | // IRTemp n3 = newTemp(Ity_I32); |
| 6836 | // IRTemp n4 = newTemp(Ity_I32); |
| 6837 | // IRTemp n5 = newTemp(Ity_I32); |
| 6838 | // IRTemp n6 = newTemp(Ity_I32); |
| 6839 | // IRTemp n7 = newTemp(Ity_I32); |
| 6840 | // IRTemp n8 = newTemp(Ity_I32); |
| 6841 | // IRTemp n9 = newTemp(Ity_I32); |
| 6842 | // IRTemp n10 = newTemp(Ity_I32); |
| 6843 | // IRTemp n11 = newTemp(Ity_I32); |
| 6844 | // IRTemp n12 = newTemp(Ity_I32); |
| 6845 | // |
| 6846 | // /* First, propagate the most significant 1-bit into all lower |
| 6847 | // positions in the word. */ |
| 6848 | // /* unsigned int clz ( unsigned int n ) |
| 6849 | // { |
| 6850 | // n |= (n >> 1); |
| 6851 | // n |= (n >> 2); |
| 6852 | // n |= (n >> 4); |
| 6853 | // n |= (n >> 8); |
| 6854 | // n |= (n >> 16); |
| 6855 | // return bitcount(~n); |
| 6856 | // } |
| 6857 | // */ |
| 6858 | // assign(n1, mkexpr(arg)); |
| 6859 | // assign(n2, binop(Iop_Or32, mkexpr(n1), binop(Iop_Shr32, mkexpr(n1), mkU8(1)))); |
| 6860 | // assign(n3, binop(Iop_Or32, mkexpr(n2), binop(Iop_Shr32, mkexpr(n2), mkU8(2)))); |
| 6861 | // assign(n4, binop(Iop_Or32, mkexpr(n3), binop(Iop_Shr32, mkexpr(n3), mkU8(4)))); |
| 6862 | // assign(n5, binop(Iop_Or32, mkexpr(n4), binop(Iop_Shr32, mkexpr(n4), mkU8(8)))); |
| 6863 | // assign(n6, binop(Iop_Or32, mkexpr(n5), binop(Iop_Shr32, mkexpr(n5), mkU8(16)))); |
| 6864 | // /* This gives a word of the form 0---01---1. Now invert it, giving |
| 6865 | // a word of the form 1---10---0, then do a population-count idiom |
| 6866 | // (to count the 1s, which is the number of leading zeroes, or 32 |
| 6867 | // if the original word was 0. */ |
| 6868 | // assign(n7, unop(Iop_Not32, mkexpr(n6))); |
| 6869 | // |
| 6870 | // /* unsigned int bitcount ( unsigned int n ) |
| 6871 | // { |
| 6872 | // n = n - ((n >> 1) & 0x55555555); |
| 6873 | // n = (n & 0x33333333) + ((n >> 2) & 0x33333333); |
| 6874 | // n = (n + (n >> 4)) & 0x0F0F0F0F; |
| 6875 | // n = n + (n >> 8); |
| 6876 | // n = (n + (n >> 16)) & 0x3F; |
| 6877 | // return n; |
| 6878 | // } |
| 6879 | // */ |
| 6880 | // assign(n8, |
| 6881 | // binop(Iop_Sub32, |
| 6882 | // mkexpr(n7), |
| 6883 | // binop(Iop_And32, |
| 6884 | // binop(Iop_Shr32, mkexpr(n7), mkU8(1)), |
| 6885 | // mkU32(0x55555555)))); |
| 6886 | // assign(n9, |
| 6887 | // binop(Iop_Add32, |
| 6888 | // binop(Iop_And32, mkexpr(n8), mkU32(0x33333333)), |
| 6889 | // binop(Iop_And32, |
| 6890 | // binop(Iop_Shr32, mkexpr(n8), mkU8(2)), |
| 6891 | // mkU32(0x33333333)))); |
| 6892 | // assign(n10, |
| 6893 | // binop(Iop_And32, |
| 6894 | // binop(Iop_Add32, |
| 6895 | // mkexpr(n9), |
| 6896 | // binop(Iop_Shr32, mkexpr(n9), mkU8(4))), |
| 6897 | // mkU32(0x0F0F0F0F))); |
| 6898 | // assign(n11, |
| 6899 | // binop(Iop_Add32, |
| 6900 | // mkexpr(n10), |
| 6901 | // binop(Iop_Shr32, mkexpr(n10), mkU8(8)))); |
| 6902 | // assign(n12, |
| 6903 | // binop(Iop_Add32, |
| 6904 | // mkexpr(n11), |
| 6905 | // binop(Iop_Shr32, mkexpr(n11), mkU8(16)))); |
| 6906 | // return |
| 6907 | // binop(Iop_And32, mkexpr(n12), mkU32(0x3F)); |
| 6908 | //} |
| 6909 | |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6910 | /*--------------------------------------------------------------------*/ |
cerion | 1515db9 | 2005-01-25 17:21:23 +0000 | [diff] [blame] | 6911 | /*--- end guest-ppc32/toIR.c ---*/ |
cerion | 896a137 | 2005-01-25 12:24:25 +0000 | [diff] [blame] | 6912 | /*--------------------------------------------------------------------*/ |