Chris Lattner | 7c90f73 | 2006-02-05 05:50:24 +0000 | [diff] [blame] | 1 | //===- SparcInstrFormats.td - Sparc Instruction Formats ----*- tablegen -*-===// |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Chris Lattner | 4ee451d | 2007-12-29 20:36:04 +0000 | [diff] [blame^] | 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 10 | class InstSP<dag outs, dag ins, string asmstr, list<dag> pattern> : Instruction { |
Chris Lattner | eee99bd | 2005-12-18 08:21:00 +0000 | [diff] [blame] | 11 | field bits<32> Inst; |
| 12 | |
Chris Lattner | 7c90f73 | 2006-02-05 05:50:24 +0000 | [diff] [blame] | 13 | let Namespace = "SP"; |
Chris Lattner | eee99bd | 2005-12-18 08:21:00 +0000 | [diff] [blame] | 14 | |
| 15 | bits<2> op; |
| 16 | let Inst{31-30} = op; // Top two bits are the 'op' field |
| 17 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 18 | dag OutOperandList = outs; |
| 19 | dag InOperandList = ins; |
Chris Lattner | eee99bd | 2005-12-18 08:21:00 +0000 | [diff] [blame] | 20 | let AsmString = asmstr; |
| 21 | let Pattern = pattern; |
| 22 | } |
| 23 | |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 24 | //===----------------------------------------------------------------------===// |
Chris Lattner | 7c90f73 | 2006-02-05 05:50:24 +0000 | [diff] [blame] | 25 | // Format #2 instruction classes in the Sparc |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 26 | //===----------------------------------------------------------------------===// |
| 27 | |
Chris Lattner | eee99bd | 2005-12-18 08:21:00 +0000 | [diff] [blame] | 28 | // Format 2 instructions |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 29 | class F2<dag outs, dag ins, string asmstr, list<dag> pattern> |
| 30 | : InstSP<outs, ins, asmstr, pattern> { |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 31 | bits<3> op2; |
| 32 | bits<22> imm22; |
| 33 | let op = 0; // op = 0 |
| 34 | let Inst{24-22} = op2; |
| 35 | let Inst{21-0} = imm22; |
| 36 | } |
| 37 | |
| 38 | // Specific F2 classes: SparcV8 manual, page 44 |
| 39 | // |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 40 | class F2_1<bits<3> op2Val, dag outs, dag ins, string asmstr, list<dag> pattern> |
| 41 | : F2<outs, ins, asmstr, pattern> { |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 42 | bits<5> rd; |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 43 | |
| 44 | let op2 = op2Val; |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 45 | |
| 46 | let Inst{29-25} = rd; |
| 47 | } |
| 48 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 49 | class F2_2<bits<4> condVal, bits<3> op2Val, dag outs, dag ins, string asmstr, |
| 50 | list<dag> pattern> : F2<outs, ins, asmstr, pattern> { |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 51 | bits<4> cond; |
| 52 | bit annul = 0; // currently unused |
| 53 | |
| 54 | let cond = condVal; |
| 55 | let op2 = op2Val; |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 56 | |
| 57 | let Inst{29} = annul; |
| 58 | let Inst{28-25} = cond; |
| 59 | } |
| 60 | |
| 61 | //===----------------------------------------------------------------------===// |
Chris Lattner | 7c90f73 | 2006-02-05 05:50:24 +0000 | [diff] [blame] | 62 | // Format #3 instruction classes in the Sparc |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 63 | //===----------------------------------------------------------------------===// |
| 64 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 65 | class F3<dag outs, dag ins, string asmstr, list<dag> pattern> |
| 66 | : InstSP<outs, ins, asmstr, pattern> { |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 67 | bits<5> rd; |
| 68 | bits<6> op3; |
| 69 | bits<5> rs1; |
| 70 | let op{1} = 1; // Op = 2 or 3 |
| 71 | let Inst{29-25} = rd; |
| 72 | let Inst{24-19} = op3; |
| 73 | let Inst{18-14} = rs1; |
| 74 | } |
| 75 | |
| 76 | // Specific F3 classes: SparcV8 manual, page 44 |
| 77 | // |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 78 | class F3_1<bits<2> opVal, bits<6> op3val, dag outs, dag ins, |
| 79 | string asmstr, list<dag> pattern> : F3<outs, ins, asmstr, pattern> { |
Chris Lattner | 7c90f73 | 2006-02-05 05:50:24 +0000 | [diff] [blame] | 80 | bits<8> asi = 0; // asi not currently used |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 81 | bits<5> rs2; |
| 82 | |
| 83 | let op = opVal; |
| 84 | let op3 = op3val; |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 85 | |
| 86 | let Inst{13} = 0; // i field = 0 |
| 87 | let Inst{12-5} = asi; // address space identifier |
| 88 | let Inst{4-0} = rs2; |
| 89 | } |
| 90 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 91 | class F3_2<bits<2> opVal, bits<6> op3val, dag outs, dag ins, |
| 92 | string asmstr, list<dag> pattern> : F3<outs, ins, asmstr, pattern> { |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 93 | bits<13> simm13; |
| 94 | |
| 95 | let op = opVal; |
| 96 | let op3 = op3val; |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 97 | |
| 98 | let Inst{13} = 1; // i field = 1 |
| 99 | let Inst{12-0} = simm13; |
| 100 | } |
| 101 | |
| 102 | // floating-point |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 103 | class F3_3<bits<2> opVal, bits<6> op3val, bits<9> opfval, dag outs, dag ins, |
| 104 | string asmstr, list<dag> pattern> : F3<outs, ins, asmstr, pattern> { |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 105 | bits<5> rs2; |
| 106 | |
| 107 | let op = opVal; |
| 108 | let op3 = op3val; |
Misha Brukman | c42077d | 2004-09-22 21:38:42 +0000 | [diff] [blame] | 109 | |
| 110 | let Inst{13-5} = opfval; // fp opcode |
| 111 | let Inst{4-0} = rs2; |
| 112 | } |
Chris Lattner | aca36b9 | 2006-09-01 22:28:02 +0000 | [diff] [blame] | 113 | |
| 114 | |