Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1 | #!/usr/bin/env perl |
| 2 | |
| 3 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 4 | push(@INC,"${dir}","${dir}../../../perlasm"); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 5 | require "x86asm.pl"; |
| 6 | |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 7 | $output = pop; |
| 8 | open STDOUT,">$output"; |
| 9 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 10 | &asm_init($ARGV[0]); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 11 | |
| 12 | $sse2=0; |
| 13 | for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); } |
| 14 | |
| 15 | &external_label("OPENSSL_ia32cap_P") if ($sse2); |
| 16 | |
| 17 | &bn_mul_add_words("bn_mul_add_words"); |
| 18 | &bn_mul_words("bn_mul_words"); |
| 19 | &bn_sqr_words("bn_sqr_words"); |
| 20 | &bn_div_words("bn_div_words"); |
| 21 | &bn_add_words("bn_add_words"); |
| 22 | &bn_sub_words("bn_sub_words"); |
| 23 | &bn_sub_part_words("bn_sub_part_words"); |
| 24 | |
| 25 | &asm_finish(); |
| 26 | |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 27 | close STDOUT; |
| 28 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 29 | sub bn_mul_add_words |
| 30 | { |
| 31 | local($name)=@_; |
| 32 | |
| 33 | &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":""); |
| 34 | |
| 35 | $r="eax"; |
| 36 | $a="edx"; |
| 37 | $c="ecx"; |
| 38 | |
| 39 | if ($sse2) { |
| 40 | &picmeup("eax","OPENSSL_ia32cap_P"); |
| 41 | &bt(&DWP(0,"eax"),26); |
| 42 | &jnc(&label("maw_non_sse2")); |
| 43 | |
| 44 | &mov($r,&wparam(0)); |
| 45 | &mov($a,&wparam(1)); |
| 46 | &mov($c,&wparam(2)); |
| 47 | &movd("mm0",&wparam(3)); # mm0 = w |
| 48 | &pxor("mm1","mm1"); # mm1 = carry_in |
| 49 | &jmp(&label("maw_sse2_entry")); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 50 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 51 | &set_label("maw_sse2_unrolled",16); |
| 52 | &movd("mm3",&DWP(0,$r,"",0)); # mm3 = r[0] |
| 53 | &paddq("mm1","mm3"); # mm1 = carry_in + r[0] |
| 54 | &movd("mm2",&DWP(0,$a,"",0)); # mm2 = a[0] |
| 55 | &pmuludq("mm2","mm0"); # mm2 = w*a[0] |
| 56 | &movd("mm4",&DWP(4,$a,"",0)); # mm4 = a[1] |
| 57 | &pmuludq("mm4","mm0"); # mm4 = w*a[1] |
| 58 | &movd("mm6",&DWP(8,$a,"",0)); # mm6 = a[2] |
| 59 | &pmuludq("mm6","mm0"); # mm6 = w*a[2] |
| 60 | &movd("mm7",&DWP(12,$a,"",0)); # mm7 = a[3] |
| 61 | &pmuludq("mm7","mm0"); # mm7 = w*a[3] |
| 62 | &paddq("mm1","mm2"); # mm1 = carry_in + r[0] + w*a[0] |
| 63 | &movd("mm3",&DWP(4,$r,"",0)); # mm3 = r[1] |
| 64 | &paddq("mm3","mm4"); # mm3 = r[1] + w*a[1] |
| 65 | &movd("mm5",&DWP(8,$r,"",0)); # mm5 = r[2] |
| 66 | &paddq("mm5","mm6"); # mm5 = r[2] + w*a[2] |
| 67 | &movd("mm4",&DWP(12,$r,"",0)); # mm4 = r[3] |
| 68 | &paddq("mm7","mm4"); # mm7 = r[3] + w*a[3] |
| 69 | &movd(&DWP(0,$r,"",0),"mm1"); |
| 70 | &movd("mm2",&DWP(16,$a,"",0)); # mm2 = a[4] |
| 71 | &pmuludq("mm2","mm0"); # mm2 = w*a[4] |
| 72 | &psrlq("mm1",32); # mm1 = carry0 |
| 73 | &movd("mm4",&DWP(20,$a,"",0)); # mm4 = a[5] |
| 74 | &pmuludq("mm4","mm0"); # mm4 = w*a[5] |
| 75 | &paddq("mm1","mm3"); # mm1 = carry0 + r[1] + w*a[1] |
| 76 | &movd("mm6",&DWP(24,$a,"",0)); # mm6 = a[6] |
| 77 | &pmuludq("mm6","mm0"); # mm6 = w*a[6] |
| 78 | &movd(&DWP(4,$r,"",0),"mm1"); |
| 79 | &psrlq("mm1",32); # mm1 = carry1 |
| 80 | &movd("mm3",&DWP(28,$a,"",0)); # mm3 = a[7] |
| 81 | &add($a,32); |
| 82 | &pmuludq("mm3","mm0"); # mm3 = w*a[7] |
| 83 | &paddq("mm1","mm5"); # mm1 = carry1 + r[2] + w*a[2] |
| 84 | &movd("mm5",&DWP(16,$r,"",0)); # mm5 = r[4] |
| 85 | &paddq("mm2","mm5"); # mm2 = r[4] + w*a[4] |
| 86 | &movd(&DWP(8,$r,"",0),"mm1"); |
| 87 | &psrlq("mm1",32); # mm1 = carry2 |
| 88 | &paddq("mm1","mm7"); # mm1 = carry2 + r[3] + w*a[3] |
| 89 | &movd("mm5",&DWP(20,$r,"",0)); # mm5 = r[5] |
| 90 | &paddq("mm4","mm5"); # mm4 = r[5] + w*a[5] |
| 91 | &movd(&DWP(12,$r,"",0),"mm1"); |
| 92 | &psrlq("mm1",32); # mm1 = carry3 |
| 93 | &paddq("mm1","mm2"); # mm1 = carry3 + r[4] + w*a[4] |
| 94 | &movd("mm5",&DWP(24,$r,"",0)); # mm5 = r[6] |
| 95 | &paddq("mm6","mm5"); # mm6 = r[6] + w*a[6] |
| 96 | &movd(&DWP(16,$r,"",0),"mm1"); |
| 97 | &psrlq("mm1",32); # mm1 = carry4 |
| 98 | &paddq("mm1","mm4"); # mm1 = carry4 + r[5] + w*a[5] |
| 99 | &movd("mm5",&DWP(28,$r,"",0)); # mm5 = r[7] |
| 100 | &paddq("mm3","mm5"); # mm3 = r[7] + w*a[7] |
| 101 | &movd(&DWP(20,$r,"",0),"mm1"); |
| 102 | &psrlq("mm1",32); # mm1 = carry5 |
| 103 | &paddq("mm1","mm6"); # mm1 = carry5 + r[6] + w*a[6] |
| 104 | &movd(&DWP(24,$r,"",0),"mm1"); |
| 105 | &psrlq("mm1",32); # mm1 = carry6 |
| 106 | &paddq("mm1","mm3"); # mm1 = carry6 + r[7] + w*a[7] |
| 107 | &movd(&DWP(28,$r,"",0),"mm1"); |
| 108 | &lea($r,&DWP(32,$r)); |
| 109 | &psrlq("mm1",32); # mm1 = carry_out |
| 110 | |
| 111 | &sub($c,8); |
| 112 | &jz(&label("maw_sse2_exit")); |
| 113 | &set_label("maw_sse2_entry"); |
| 114 | &test($c,0xfffffff8); |
| 115 | &jnz(&label("maw_sse2_unrolled")); |
| 116 | |
| 117 | &set_label("maw_sse2_loop",4); |
| 118 | &movd("mm2",&DWP(0,$a)); # mm2 = a[i] |
| 119 | &movd("mm3",&DWP(0,$r)); # mm3 = r[i] |
| 120 | &pmuludq("mm2","mm0"); # a[i] *= w |
| 121 | &lea($a,&DWP(4,$a)); |
| 122 | &paddq("mm1","mm3"); # carry += r[i] |
| 123 | &paddq("mm1","mm2"); # carry += a[i]*w |
| 124 | &movd(&DWP(0,$r),"mm1"); # r[i] = carry_low |
| 125 | &sub($c,1); |
| 126 | &psrlq("mm1",32); # carry = carry_high |
| 127 | &lea($r,&DWP(4,$r)); |
| 128 | &jnz(&label("maw_sse2_loop")); |
| 129 | &set_label("maw_sse2_exit"); |
| 130 | &movd("eax","mm1"); # c = carry_out |
| 131 | &emms(); |
| 132 | &ret(); |
| 133 | |
| 134 | &set_label("maw_non_sse2",16); |
| 135 | } |
| 136 | |
| 137 | # function_begin prologue |
| 138 | &push("ebp"); |
| 139 | &push("ebx"); |
| 140 | &push("esi"); |
| 141 | &push("edi"); |
| 142 | |
| 143 | &comment(""); |
| 144 | $Low="eax"; |
| 145 | $High="edx"; |
| 146 | $a="ebx"; |
| 147 | $w="ebp"; |
| 148 | $r="edi"; |
| 149 | $c="esi"; |
| 150 | |
| 151 | &xor($c,$c); # clear carry |
| 152 | &mov($r,&wparam(0)); # |
| 153 | |
| 154 | &mov("ecx",&wparam(2)); # |
| 155 | &mov($a,&wparam(1)); # |
| 156 | |
| 157 | &and("ecx",0xfffffff8); # num / 8 |
| 158 | &mov($w,&wparam(3)); # |
| 159 | |
| 160 | &push("ecx"); # Up the stack for a tmp variable |
| 161 | |
| 162 | &jz(&label("maw_finish")); |
| 163 | |
| 164 | &set_label("maw_loop",16); |
| 165 | |
| 166 | for ($i=0; $i<32; $i+=4) |
| 167 | { |
| 168 | &comment("Round $i"); |
| 169 | |
| 170 | &mov("eax",&DWP($i,$a)); # *a |
| 171 | &mul($w); # *a * w |
| 172 | &add("eax",$c); # L(t)+= c |
| 173 | &adc("edx",0); # H(t)+=carry |
| 174 | &add("eax",&DWP($i,$r)); # L(t)+= *r |
| 175 | &adc("edx",0); # H(t)+=carry |
| 176 | &mov(&DWP($i,$r),"eax"); # *r= L(t); |
| 177 | &mov($c,"edx"); # c= H(t); |
| 178 | } |
| 179 | |
| 180 | &comment(""); |
| 181 | &sub("ecx",8); |
| 182 | &lea($a,&DWP(32,$a)); |
| 183 | &lea($r,&DWP(32,$r)); |
| 184 | &jnz(&label("maw_loop")); |
| 185 | |
| 186 | &set_label("maw_finish",0); |
| 187 | &mov("ecx",&wparam(2)); # get num |
| 188 | &and("ecx",7); |
| 189 | &jnz(&label("maw_finish2")); # helps branch prediction |
| 190 | &jmp(&label("maw_end")); |
| 191 | |
| 192 | &set_label("maw_finish2",1); |
| 193 | for ($i=0; $i<7; $i++) |
| 194 | { |
| 195 | &comment("Tail Round $i"); |
| 196 | &mov("eax",&DWP($i*4,$a)); # *a |
| 197 | &mul($w); # *a * w |
| 198 | &add("eax",$c); # L(t)+=c |
| 199 | &adc("edx",0); # H(t)+=carry |
| 200 | &add("eax",&DWP($i*4,$r)); # L(t)+= *r |
| 201 | &adc("edx",0); # H(t)+=carry |
| 202 | &dec("ecx") if ($i != 7-1); |
| 203 | &mov(&DWP($i*4,$r),"eax"); # *r= L(t); |
| 204 | &mov($c,"edx"); # c= H(t); |
| 205 | &jz(&label("maw_end")) if ($i != 7-1); |
| 206 | } |
| 207 | &set_label("maw_end",0); |
| 208 | &mov("eax",$c); |
| 209 | |
| 210 | &pop("ecx"); # clear variable from |
| 211 | |
| 212 | &function_end($name); |
| 213 | } |
| 214 | |
| 215 | sub bn_mul_words |
| 216 | { |
| 217 | local($name)=@_; |
| 218 | |
| 219 | &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":""); |
| 220 | |
| 221 | $r="eax"; |
| 222 | $a="edx"; |
| 223 | $c="ecx"; |
| 224 | |
| 225 | if ($sse2) { |
| 226 | &picmeup("eax","OPENSSL_ia32cap_P"); |
| 227 | &bt(&DWP(0,"eax"),26); |
| 228 | &jnc(&label("mw_non_sse2")); |
| 229 | |
| 230 | &mov($r,&wparam(0)); |
| 231 | &mov($a,&wparam(1)); |
| 232 | &mov($c,&wparam(2)); |
| 233 | &movd("mm0",&wparam(3)); # mm0 = w |
| 234 | &pxor("mm1","mm1"); # mm1 = carry = 0 |
| 235 | |
| 236 | &set_label("mw_sse2_loop",16); |
| 237 | &movd("mm2",&DWP(0,$a)); # mm2 = a[i] |
| 238 | &pmuludq("mm2","mm0"); # a[i] *= w |
| 239 | &lea($a,&DWP(4,$a)); |
| 240 | &paddq("mm1","mm2"); # carry += a[i]*w |
| 241 | &movd(&DWP(0,$r),"mm1"); # r[i] = carry_low |
| 242 | &sub($c,1); |
| 243 | &psrlq("mm1",32); # carry = carry_high |
| 244 | &lea($r,&DWP(4,$r)); |
| 245 | &jnz(&label("mw_sse2_loop")); |
| 246 | |
| 247 | &movd("eax","mm1"); # return carry |
| 248 | &emms(); |
| 249 | &ret(); |
| 250 | &set_label("mw_non_sse2",16); |
| 251 | } |
| 252 | |
| 253 | # function_begin prologue |
| 254 | &push("ebp"); |
| 255 | &push("ebx"); |
| 256 | &push("esi"); |
| 257 | &push("edi"); |
| 258 | |
| 259 | &comment(""); |
| 260 | $Low="eax"; |
| 261 | $High="edx"; |
| 262 | $a="ebx"; |
| 263 | $w="ecx"; |
| 264 | $r="edi"; |
| 265 | $c="esi"; |
| 266 | $num="ebp"; |
| 267 | |
| 268 | &xor($c,$c); # clear carry |
| 269 | &mov($r,&wparam(0)); # |
| 270 | &mov($a,&wparam(1)); # |
| 271 | &mov($num,&wparam(2)); # |
| 272 | &mov($w,&wparam(3)); # |
| 273 | |
| 274 | &and($num,0xfffffff8); # num / 8 |
| 275 | &jz(&label("mw_finish")); |
| 276 | |
| 277 | &set_label("mw_loop",0); |
| 278 | for ($i=0; $i<32; $i+=4) |
| 279 | { |
| 280 | &comment("Round $i"); |
| 281 | |
| 282 | &mov("eax",&DWP($i,$a,"",0)); # *a |
| 283 | &mul($w); # *a * w |
| 284 | &add("eax",$c); # L(t)+=c |
| 285 | # XXX |
| 286 | |
| 287 | &adc("edx",0); # H(t)+=carry |
| 288 | &mov(&DWP($i,$r,"",0),"eax"); # *r= L(t); |
| 289 | |
| 290 | &mov($c,"edx"); # c= H(t); |
| 291 | } |
| 292 | |
| 293 | &comment(""); |
| 294 | &add($a,32); |
| 295 | &add($r,32); |
| 296 | &sub($num,8); |
| 297 | &jz(&label("mw_finish")); |
| 298 | &jmp(&label("mw_loop")); |
| 299 | |
| 300 | &set_label("mw_finish",0); |
| 301 | &mov($num,&wparam(2)); # get num |
| 302 | &and($num,7); |
| 303 | &jnz(&label("mw_finish2")); |
| 304 | &jmp(&label("mw_end")); |
| 305 | |
| 306 | &set_label("mw_finish2",1); |
| 307 | for ($i=0; $i<7; $i++) |
| 308 | { |
| 309 | &comment("Tail Round $i"); |
| 310 | &mov("eax",&DWP($i*4,$a,"",0));# *a |
| 311 | &mul($w); # *a * w |
| 312 | &add("eax",$c); # L(t)+=c |
| 313 | # XXX |
| 314 | &adc("edx",0); # H(t)+=carry |
| 315 | &mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t); |
| 316 | &mov($c,"edx"); # c= H(t); |
| 317 | &dec($num) if ($i != 7-1); |
| 318 | &jz(&label("mw_end")) if ($i != 7-1); |
| 319 | } |
| 320 | &set_label("mw_end",0); |
| 321 | &mov("eax",$c); |
| 322 | |
| 323 | &function_end($name); |
| 324 | } |
| 325 | |
| 326 | sub bn_sqr_words |
| 327 | { |
| 328 | local($name)=@_; |
| 329 | |
| 330 | &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":""); |
| 331 | |
| 332 | $r="eax"; |
| 333 | $a="edx"; |
| 334 | $c="ecx"; |
| 335 | |
| 336 | if ($sse2) { |
| 337 | &picmeup("eax","OPENSSL_ia32cap_P"); |
| 338 | &bt(&DWP(0,"eax"),26); |
| 339 | &jnc(&label("sqr_non_sse2")); |
| 340 | |
| 341 | &mov($r,&wparam(0)); |
| 342 | &mov($a,&wparam(1)); |
| 343 | &mov($c,&wparam(2)); |
| 344 | |
| 345 | &set_label("sqr_sse2_loop",16); |
| 346 | &movd("mm0",&DWP(0,$a)); # mm0 = a[i] |
| 347 | &pmuludq("mm0","mm0"); # a[i] *= a[i] |
| 348 | &lea($a,&DWP(4,$a)); # a++ |
| 349 | &movq(&QWP(0,$r),"mm0"); # r[i] = a[i]*a[i] |
| 350 | &sub($c,1); |
| 351 | &lea($r,&DWP(8,$r)); # r += 2 |
| 352 | &jnz(&label("sqr_sse2_loop")); |
| 353 | |
| 354 | &emms(); |
| 355 | &ret(); |
| 356 | &set_label("sqr_non_sse2",16); |
| 357 | } |
| 358 | |
| 359 | # function_begin prologue |
| 360 | &push("ebp"); |
| 361 | &push("ebx"); |
| 362 | &push("esi"); |
| 363 | &push("edi"); |
| 364 | |
| 365 | &comment(""); |
| 366 | $r="esi"; |
| 367 | $a="edi"; |
| 368 | $num="ebx"; |
| 369 | |
| 370 | &mov($r,&wparam(0)); # |
| 371 | &mov($a,&wparam(1)); # |
| 372 | &mov($num,&wparam(2)); # |
| 373 | |
| 374 | &and($num,0xfffffff8); # num / 8 |
| 375 | &jz(&label("sw_finish")); |
| 376 | |
| 377 | &set_label("sw_loop",0); |
| 378 | for ($i=0; $i<32; $i+=4) |
| 379 | { |
| 380 | &comment("Round $i"); |
| 381 | &mov("eax",&DWP($i,$a,"",0)); # *a |
| 382 | # XXX |
| 383 | &mul("eax"); # *a * *a |
| 384 | &mov(&DWP($i*2,$r,"",0),"eax"); # |
| 385 | &mov(&DWP($i*2+4,$r,"",0),"edx");# |
| 386 | } |
| 387 | |
| 388 | &comment(""); |
| 389 | &add($a,32); |
| 390 | &add($r,64); |
| 391 | &sub($num,8); |
| 392 | &jnz(&label("sw_loop")); |
| 393 | |
| 394 | &set_label("sw_finish",0); |
| 395 | &mov($num,&wparam(2)); # get num |
| 396 | &and($num,7); |
| 397 | &jz(&label("sw_end")); |
| 398 | |
| 399 | for ($i=0; $i<7; $i++) |
| 400 | { |
| 401 | &comment("Tail Round $i"); |
| 402 | &mov("eax",&DWP($i*4,$a,"",0)); # *a |
| 403 | # XXX |
| 404 | &mul("eax"); # *a * *a |
| 405 | &mov(&DWP($i*8,$r,"",0),"eax"); # |
| 406 | &dec($num) if ($i != 7-1); |
| 407 | &mov(&DWP($i*8+4,$r,"",0),"edx"); |
| 408 | &jz(&label("sw_end")) if ($i != 7-1); |
| 409 | } |
| 410 | &set_label("sw_end",0); |
| 411 | |
| 412 | &function_end($name); |
| 413 | } |
| 414 | |
| 415 | sub bn_div_words |
| 416 | { |
| 417 | local($name)=@_; |
| 418 | |
| 419 | &function_begin_B($name,""); |
| 420 | &mov("edx",&wparam(0)); # |
| 421 | &mov("eax",&wparam(1)); # |
| 422 | &mov("ecx",&wparam(2)); # |
| 423 | &div("ecx"); |
| 424 | &ret(); |
| 425 | &function_end_B($name); |
| 426 | } |
| 427 | |
| 428 | sub bn_add_words |
| 429 | { |
| 430 | local($name)=@_; |
| 431 | |
| 432 | &function_begin($name,""); |
| 433 | |
| 434 | &comment(""); |
| 435 | $a="esi"; |
| 436 | $b="edi"; |
| 437 | $c="eax"; |
| 438 | $r="ebx"; |
| 439 | $tmp1="ecx"; |
| 440 | $tmp2="edx"; |
| 441 | $num="ebp"; |
| 442 | |
| 443 | &mov($r,&wparam(0)); # get r |
| 444 | &mov($a,&wparam(1)); # get a |
| 445 | &mov($b,&wparam(2)); # get b |
| 446 | &mov($num,&wparam(3)); # get num |
| 447 | &xor($c,$c); # clear carry |
| 448 | &and($num,0xfffffff8); # num / 8 |
| 449 | |
| 450 | &jz(&label("aw_finish")); |
| 451 | |
| 452 | &set_label("aw_loop",0); |
| 453 | for ($i=0; $i<8; $i++) |
| 454 | { |
| 455 | &comment("Round $i"); |
| 456 | |
| 457 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
| 458 | &mov($tmp2,&DWP($i*4,$b,"",0)); # *b |
| 459 | &add($tmp1,$c); |
| 460 | &mov($c,0); |
| 461 | &adc($c,$c); |
| 462 | &add($tmp1,$tmp2); |
| 463 | &adc($c,0); |
| 464 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 465 | } |
| 466 | |
| 467 | &comment(""); |
| 468 | &add($a,32); |
| 469 | &add($b,32); |
| 470 | &add($r,32); |
| 471 | &sub($num,8); |
| 472 | &jnz(&label("aw_loop")); |
| 473 | |
| 474 | &set_label("aw_finish",0); |
| 475 | &mov($num,&wparam(3)); # get num |
| 476 | &and($num,7); |
| 477 | &jz(&label("aw_end")); |
| 478 | |
| 479 | for ($i=0; $i<7; $i++) |
| 480 | { |
| 481 | &comment("Tail Round $i"); |
| 482 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
| 483 | &mov($tmp2,&DWP($i*4,$b,"",0));# *b |
| 484 | &add($tmp1,$c); |
| 485 | &mov($c,0); |
| 486 | &adc($c,$c); |
| 487 | &add($tmp1,$tmp2); |
| 488 | &adc($c,0); |
| 489 | &dec($num) if ($i != 6); |
| 490 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 491 | &jz(&label("aw_end")) if ($i != 6); |
| 492 | } |
| 493 | &set_label("aw_end",0); |
| 494 | |
| 495 | # &mov("eax",$c); # $c is "eax" |
| 496 | |
| 497 | &function_end($name); |
| 498 | } |
| 499 | |
| 500 | sub bn_sub_words |
| 501 | { |
| 502 | local($name)=@_; |
| 503 | |
| 504 | &function_begin($name,""); |
| 505 | |
| 506 | &comment(""); |
| 507 | $a="esi"; |
| 508 | $b="edi"; |
| 509 | $c="eax"; |
| 510 | $r="ebx"; |
| 511 | $tmp1="ecx"; |
| 512 | $tmp2="edx"; |
| 513 | $num="ebp"; |
| 514 | |
| 515 | &mov($r,&wparam(0)); # get r |
| 516 | &mov($a,&wparam(1)); # get a |
| 517 | &mov($b,&wparam(2)); # get b |
| 518 | &mov($num,&wparam(3)); # get num |
| 519 | &xor($c,$c); # clear carry |
| 520 | &and($num,0xfffffff8); # num / 8 |
| 521 | |
| 522 | &jz(&label("aw_finish")); |
| 523 | |
| 524 | &set_label("aw_loop",0); |
| 525 | for ($i=0; $i<8; $i++) |
| 526 | { |
| 527 | &comment("Round $i"); |
| 528 | |
| 529 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
| 530 | &mov($tmp2,&DWP($i*4,$b,"",0)); # *b |
| 531 | &sub($tmp1,$c); |
| 532 | &mov($c,0); |
| 533 | &adc($c,$c); |
| 534 | &sub($tmp1,$tmp2); |
| 535 | &adc($c,0); |
| 536 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 537 | } |
| 538 | |
| 539 | &comment(""); |
| 540 | &add($a,32); |
| 541 | &add($b,32); |
| 542 | &add($r,32); |
| 543 | &sub($num,8); |
| 544 | &jnz(&label("aw_loop")); |
| 545 | |
| 546 | &set_label("aw_finish",0); |
| 547 | &mov($num,&wparam(3)); # get num |
| 548 | &and($num,7); |
| 549 | &jz(&label("aw_end")); |
| 550 | |
| 551 | for ($i=0; $i<7; $i++) |
| 552 | { |
| 553 | &comment("Tail Round $i"); |
| 554 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
| 555 | &mov($tmp2,&DWP($i*4,$b,"",0));# *b |
| 556 | &sub($tmp1,$c); |
| 557 | &mov($c,0); |
| 558 | &adc($c,$c); |
| 559 | &sub($tmp1,$tmp2); |
| 560 | &adc($c,0); |
| 561 | &dec($num) if ($i != 6); |
| 562 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 563 | &jz(&label("aw_end")) if ($i != 6); |
| 564 | } |
| 565 | &set_label("aw_end",0); |
| 566 | |
| 567 | # &mov("eax",$c); # $c is "eax" |
| 568 | |
| 569 | &function_end($name); |
| 570 | } |
| 571 | |
| 572 | sub bn_sub_part_words |
| 573 | { |
| 574 | local($name)=@_; |
| 575 | |
| 576 | &function_begin($name,""); |
| 577 | |
| 578 | &comment(""); |
| 579 | $a="esi"; |
| 580 | $b="edi"; |
| 581 | $c="eax"; |
| 582 | $r="ebx"; |
| 583 | $tmp1="ecx"; |
| 584 | $tmp2="edx"; |
| 585 | $num="ebp"; |
| 586 | |
| 587 | &mov($r,&wparam(0)); # get r |
| 588 | &mov($a,&wparam(1)); # get a |
| 589 | &mov($b,&wparam(2)); # get b |
| 590 | &mov($num,&wparam(3)); # get num |
| 591 | &xor($c,$c); # clear carry |
| 592 | &and($num,0xfffffff8); # num / 8 |
| 593 | |
| 594 | &jz(&label("aw_finish")); |
| 595 | |
| 596 | &set_label("aw_loop",0); |
| 597 | for ($i=0; $i<8; $i++) |
| 598 | { |
| 599 | &comment("Round $i"); |
| 600 | |
| 601 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
| 602 | &mov($tmp2,&DWP($i*4,$b,"",0)); # *b |
| 603 | &sub($tmp1,$c); |
| 604 | &mov($c,0); |
| 605 | &adc($c,$c); |
| 606 | &sub($tmp1,$tmp2); |
| 607 | &adc($c,0); |
| 608 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 609 | } |
| 610 | |
| 611 | &comment(""); |
| 612 | &add($a,32); |
| 613 | &add($b,32); |
| 614 | &add($r,32); |
| 615 | &sub($num,8); |
| 616 | &jnz(&label("aw_loop")); |
| 617 | |
| 618 | &set_label("aw_finish",0); |
| 619 | &mov($num,&wparam(3)); # get num |
| 620 | &and($num,7); |
| 621 | &jz(&label("aw_end")); |
| 622 | |
| 623 | for ($i=0; $i<7; $i++) |
| 624 | { |
| 625 | &comment("Tail Round $i"); |
| 626 | &mov($tmp1,&DWP(0,$a,"",0)); # *a |
| 627 | &mov($tmp2,&DWP(0,$b,"",0));# *b |
| 628 | &sub($tmp1,$c); |
| 629 | &mov($c,0); |
| 630 | &adc($c,$c); |
| 631 | &sub($tmp1,$tmp2); |
| 632 | &adc($c,0); |
| 633 | &mov(&DWP(0,$r,"",0),$tmp1); # *r |
| 634 | &add($a, 4); |
| 635 | &add($b, 4); |
| 636 | &add($r, 4); |
| 637 | &dec($num) if ($i != 6); |
| 638 | &jz(&label("aw_end")) if ($i != 6); |
| 639 | } |
| 640 | &set_label("aw_end",0); |
| 641 | |
| 642 | &cmp(&wparam(4),0); |
| 643 | &je(&label("pw_end")); |
| 644 | |
| 645 | &mov($num,&wparam(4)); # get dl |
| 646 | &cmp($num,0); |
| 647 | &je(&label("pw_end")); |
| 648 | &jge(&label("pw_pos")); |
| 649 | |
| 650 | &comment("pw_neg"); |
| 651 | &mov($tmp2,0); |
| 652 | &sub($tmp2,$num); |
| 653 | &mov($num,$tmp2); |
| 654 | &and($num,0xfffffff8); # num / 8 |
| 655 | &jz(&label("pw_neg_finish")); |
| 656 | |
| 657 | &set_label("pw_neg_loop",0); |
| 658 | for ($i=0; $i<8; $i++) |
| 659 | { |
| 660 | &comment("dl<0 Round $i"); |
| 661 | |
| 662 | &mov($tmp1,0); |
| 663 | &mov($tmp2,&DWP($i*4,$b,"",0)); # *b |
| 664 | &sub($tmp1,$c); |
| 665 | &mov($c,0); |
| 666 | &adc($c,$c); |
| 667 | &sub($tmp1,$tmp2); |
| 668 | &adc($c,0); |
| 669 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 670 | } |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 671 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 672 | &comment(""); |
| 673 | &add($b,32); |
| 674 | &add($r,32); |
| 675 | &sub($num,8); |
| 676 | &jnz(&label("pw_neg_loop")); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 677 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 678 | &set_label("pw_neg_finish",0); |
| 679 | &mov($tmp2,&wparam(4)); # get dl |
| 680 | &mov($num,0); |
| 681 | &sub($num,$tmp2); |
| 682 | &and($num,7); |
| 683 | &jz(&label("pw_end")); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 684 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 685 | for ($i=0; $i<7; $i++) |
| 686 | { |
| 687 | &comment("dl<0 Tail Round $i"); |
| 688 | &mov($tmp1,0); |
| 689 | &mov($tmp2,&DWP($i*4,$b,"",0));# *b |
| 690 | &sub($tmp1,$c); |
| 691 | &mov($c,0); |
| 692 | &adc($c,$c); |
| 693 | &sub($tmp1,$tmp2); |
| 694 | &adc($c,0); |
| 695 | &dec($num) if ($i != 6); |
| 696 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 697 | &jz(&label("pw_end")) if ($i != 6); |
| 698 | } |
| 699 | |
| 700 | &jmp(&label("pw_end")); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 701 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 702 | &set_label("pw_pos",0); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 703 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 704 | &and($num,0xfffffff8); # num / 8 |
| 705 | &jz(&label("pw_pos_finish")); |
| 706 | |
| 707 | &set_label("pw_pos_loop",0); |
| 708 | |
| 709 | for ($i=0; $i<8; $i++) |
| 710 | { |
| 711 | &comment("dl>0 Round $i"); |
| 712 | |
| 713 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
| 714 | &sub($tmp1,$c); |
| 715 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 716 | &jnc(&label("pw_nc".$i)); |
| 717 | } |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 718 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 719 | &comment(""); |
| 720 | &add($a,32); |
| 721 | &add($r,32); |
| 722 | &sub($num,8); |
| 723 | &jnz(&label("pw_pos_loop")); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 724 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 725 | &set_label("pw_pos_finish",0); |
| 726 | &mov($num,&wparam(4)); # get dl |
| 727 | &and($num,7); |
| 728 | &jz(&label("pw_end")); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 729 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 730 | for ($i=0; $i<7; $i++) |
| 731 | { |
| 732 | &comment("dl>0 Tail Round $i"); |
| 733 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
| 734 | &sub($tmp1,$c); |
| 735 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 736 | &jnc(&label("pw_tail_nc".$i)); |
| 737 | &dec($num) if ($i != 6); |
| 738 | &jz(&label("pw_end")) if ($i != 6); |
| 739 | } |
| 740 | &mov($c,1); |
| 741 | &jmp(&label("pw_end")); |
| 742 | |
| 743 | &set_label("pw_nc_loop",0); |
| 744 | for ($i=0; $i<8; $i++) |
| 745 | { |
| 746 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
| 747 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 748 | &set_label("pw_nc".$i,0); |
| 749 | } |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 750 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 751 | &comment(""); |
| 752 | &add($a,32); |
| 753 | &add($r,32); |
| 754 | &sub($num,8); |
| 755 | &jnz(&label("pw_nc_loop")); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 756 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 757 | &mov($num,&wparam(4)); # get dl |
| 758 | &and($num,7); |
| 759 | &jz(&label("pw_nc_end")); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 760 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 761 | for ($i=0; $i<7; $i++) |
| 762 | { |
| 763 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
| 764 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
| 765 | &set_label("pw_tail_nc".$i,0); |
| 766 | &dec($num) if ($i != 6); |
| 767 | &jz(&label("pw_nc_end")) if ($i != 6); |
| 768 | } |
| 769 | |
| 770 | &set_label("pw_nc_end",0); |
| 771 | &mov($c,0); |
| 772 | |
| 773 | &set_label("pw_end",0); |
| 774 | |
| 775 | # &mov("eax",$c); # $c is "eax" |
| 776 | |
| 777 | &function_end($name); |
| 778 | } |