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| 1 #!/usr/local/bin/perl | |
| 2 | |
| 3 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; | |
| 4 push(@INC,"${dir}","${dir}../../perlasm"); | |
| 5 require "x86asm.pl"; | |
| 6 | |
| 7 &asm_init($ARGV[0],$0); | |
| 8 | |
| 9 $sse2=0; | |
| 10 for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); } | |
| 11 | |
| 12 &external_label("OPENSSL_ia32cap_P") if ($sse2); | |
| 13 | |
| 14 &bn_mul_add_words("bn_mul_add_words"); | |
| 15 &bn_mul_words("bn_mul_words"); | |
| 16 &bn_sqr_words("bn_sqr_words"); | |
| 17 &bn_div_words("bn_div_words"); | |
| 18 &bn_add_words("bn_add_words"); | |
| 19 &bn_sub_words("bn_sub_words"); | |
| 20 &bn_sub_part_words("bn_sub_part_words"); | |
| 21 | |
| 22 &asm_finish(); | |
| 23 | |
| 24 sub bn_mul_add_words | |
| 25 { | |
| 26 local($name)=@_; | |
| 27 | |
| 28 &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":""); | |
| 29 | |
| 30 $r="eax"; | |
| 31 $a="edx"; | |
| 32 $c="ecx"; | |
| 33 | |
| 34 if ($sse2) { | |
| 35 &picmeup("eax","OPENSSL_ia32cap_P"); | |
| 36 &bt(&DWP(0,"eax"),26); | |
| 37 &jnc(&label("maw_non_sse2")); | |
| 38 | |
| 39 &mov($r,&wparam(0)); | |
| 40 &mov($a,&wparam(1)); | |
| 41 &mov($c,&wparam(2)); | |
| 42 &movd("mm0",&wparam(3)); # mm0 = w | |
| 43 &pxor("mm1","mm1"); # mm1 = carry_in | |
| 44 &jmp(&label("maw_sse2_entry")); | |
| 45 | |
| 46 &set_label("maw_sse2_unrolled",16); | |
| 47 &movd("mm3",&DWP(0,$r,"",0)); # mm3 = r[0] | |
| 48 &paddq("mm1","mm3"); # mm1 = carry_in + r[0] | |
| 49 &movd("mm2",&DWP(0,$a,"",0)); # mm2 = a[0] | |
| 50 &pmuludq("mm2","mm0"); # mm2 = w*a[0] | |
| 51 &movd("mm4",&DWP(4,$a,"",0)); # mm4 = a[1] | |
| 52 &pmuludq("mm4","mm0"); # mm4 = w*a[1] | |
| 53 &movd("mm6",&DWP(8,$a,"",0)); # mm6 = a[2] | |
| 54 &pmuludq("mm6","mm0"); # mm6 = w*a[2] | |
| 55 &movd("mm7",&DWP(12,$a,"",0)); # mm7 = a[3] | |
| 56 &pmuludq("mm7","mm0"); # mm7 = w*a[3] | |
| 57 &paddq("mm1","mm2"); # mm1 = carry_in + r[0] + w*a[0] | |
| 58 &movd("mm3",&DWP(4,$r,"",0)); # mm3 = r[1] | |
| 59 &paddq("mm3","mm4"); # mm3 = r[1] + w*a[1] | |
| 60 &movd("mm5",&DWP(8,$r,"",0)); # mm5 = r[2] | |
| 61 &paddq("mm5","mm6"); # mm5 = r[2] + w*a[2] | |
| 62 &movd("mm4",&DWP(12,$r,"",0)); # mm4 = r[3] | |
| 63 &paddq("mm7","mm4"); # mm7 = r[3] + w*a[3] | |
| 64 &movd(&DWP(0,$r,"",0),"mm1"); | |
| 65 &movd("mm2",&DWP(16,$a,"",0)); # mm2 = a[4] | |
| 66 &pmuludq("mm2","mm0"); # mm2 = w*a[4] | |
| 67 &psrlq("mm1",32); # mm1 = carry0 | |
| 68 &movd("mm4",&DWP(20,$a,"",0)); # mm4 = a[5] | |
| 69 &pmuludq("mm4","mm0"); # mm4 = w*a[5] | |
| 70 &paddq("mm1","mm3"); # mm1 = carry0 + r[1] + w*a[1] | |
| 71 &movd("mm6",&DWP(24,$a,"",0)); # mm6 = a[6] | |
| 72 &pmuludq("mm6","mm0"); # mm6 = w*a[6] | |
| 73 &movd(&DWP(4,$r,"",0),"mm1"); | |
| 74 &psrlq("mm1",32); # mm1 = carry1 | |
| 75 &movd("mm3",&DWP(28,$a,"",0)); # mm3 = a[7] | |
| 76 &add($a,32); | |
| 77 &pmuludq("mm3","mm0"); # mm3 = w*a[7] | |
| 78 &paddq("mm1","mm5"); # mm1 = carry1 + r[2] + w*a[2] | |
| 79 &movd("mm5",&DWP(16,$r,"",0)); # mm5 = r[4] | |
| 80 &paddq("mm2","mm5"); # mm2 = r[4] + w*a[4] | |
| 81 &movd(&DWP(8,$r,"",0),"mm1"); | |
| 82 &psrlq("mm1",32); # mm1 = carry2 | |
| 83 &paddq("mm1","mm7"); # mm1 = carry2 + r[3] + w*a[3] | |
| 84 &movd("mm5",&DWP(20,$r,"",0)); # mm5 = r[5] | |
| 85 &paddq("mm4","mm5"); # mm4 = r[5] + w*a[5] | |
| 86 &movd(&DWP(12,$r,"",0),"mm1"); | |
| 87 &psrlq("mm1",32); # mm1 = carry3 | |
| 88 &paddq("mm1","mm2"); # mm1 = carry3 + r[4] + w*a[4] | |
| 89 &movd("mm5",&DWP(24,$r,"",0)); # mm5 = r[6] | |
| 90 &paddq("mm6","mm5"); # mm6 = r[6] + w*a[6] | |
| 91 &movd(&DWP(16,$r,"",0),"mm1"); | |
| 92 &psrlq("mm1",32); # mm1 = carry4 | |
| 93 &paddq("mm1","mm4"); # mm1 = carry4 + r[5] + w*a[5] | |
| 94 &movd("mm5",&DWP(28,$r,"",0)); # mm5 = r[7] | |
| 95 &paddq("mm3","mm5"); # mm3 = r[7] + w*a[7] | |
| 96 &movd(&DWP(20,$r,"",0),"mm1"); | |
| 97 &psrlq("mm1",32); # mm1 = carry5 | |
| 98 &paddq("mm1","mm6"); # mm1 = carry5 + r[6] + w*a[6] | |
| 99 &movd(&DWP(24,$r,"",0),"mm1"); | |
| 100 &psrlq("mm1",32); # mm1 = carry6 | |
| 101 &paddq("mm1","mm3"); # mm1 = carry6 + r[7] + w*a[7] | |
| 102 &movd(&DWP(28,$r,"",0),"mm1"); | |
| 103 &lea($r,&DWP(32,$r)); | |
| 104 &psrlq("mm1",32); # mm1 = carry_out | |
| 105 | |
| 106 &sub($c,8); | |
| 107 &jz(&label("maw_sse2_exit")); | |
| 108 &set_label("maw_sse2_entry"); | |
| 109 &test($c,0xfffffff8); | |
| 110 &jnz(&label("maw_sse2_unrolled")); | |
| 111 | |
| 112 &set_label("maw_sse2_loop",4); | |
| 113 &movd("mm2",&DWP(0,$a)); # mm2 = a[i] | |
| 114 &movd("mm3",&DWP(0,$r)); # mm3 = r[i] | |
| 115 &pmuludq("mm2","mm0"); # a[i] *= w | |
| 116 &lea($a,&DWP(4,$a)); | |
| 117 &paddq("mm1","mm3"); # carry += r[i] | |
| 118 &paddq("mm1","mm2"); # carry += a[i]*w | |
| 119 &movd(&DWP(0,$r),"mm1"); # r[i] = carry_low | |
| 120 &sub($c,1); | |
| 121 &psrlq("mm1",32); # carry = carry_high | |
| 122 &lea($r,&DWP(4,$r)); | |
| 123 &jnz(&label("maw_sse2_loop")); | |
| 124 &set_label("maw_sse2_exit"); | |
| 125 &movd("eax","mm1"); # c = carry_out | |
| 126 &emms(); | |
| 127 &ret(); | |
| 128 | |
| 129 &set_label("maw_non_sse2",16); | |
| 130 } | |
| 131 | |
| 132 # function_begin prologue | |
| 133 &push("ebp"); | |
| 134 &push("ebx"); | |
| 135 &push("esi"); | |
| 136 &push("edi"); | |
| 137 | |
| 138 &comment(""); | |
| 139 $Low="eax"; | |
| 140 $High="edx"; | |
| 141 $a="ebx"; | |
| 142 $w="ebp"; | |
| 143 $r="edi"; | |
| 144 $c="esi"; | |
| 145 | |
| 146 &xor($c,$c); # clear carry | |
| 147 &mov($r,&wparam(0)); # | |
| 148 | |
| 149 &mov("ecx",&wparam(2)); # | |
| 150 &mov($a,&wparam(1)); # | |
| 151 | |
| 152 &and("ecx",0xfffffff8); # num / 8 | |
| 153 &mov($w,&wparam(3)); # | |
| 154 | |
| 155 &push("ecx"); # Up the stack for a tmp variable | |
| 156 | |
| 157 &jz(&label("maw_finish")); | |
| 158 | |
| 159 &set_label("maw_loop",16); | |
| 160 | |
| 161 for ($i=0; $i<32; $i+=4) | |
| 162 { | |
| 163 &comment("Round $i"); | |
| 164 | |
| 165 &mov("eax",&DWP($i,$a)); # *a | |
| 166 &mul($w); # *a * w | |
| 167 &add("eax",$c); # L(t)+= c | |
| 168 &adc("edx",0); # H(t)+=carry | |
| 169 &add("eax",&DWP($i,$r)); # L(t)+= *r | |
| 170 &adc("edx",0); # H(t)+=carry | |
| 171 &mov(&DWP($i,$r),"eax"); # *r= L(t); | |
| 172 &mov($c,"edx"); # c= H(t); | |
| 173 } | |
| 174 | |
| 175 &comment(""); | |
| 176 &sub("ecx",8); | |
| 177 &lea($a,&DWP(32,$a)); | |
| 178 &lea($r,&DWP(32,$r)); | |
| 179 &jnz(&label("maw_loop")); | |
| 180 | |
| 181 &set_label("maw_finish",0); | |
| 182 &mov("ecx",&wparam(2)); # get num | |
| 183 &and("ecx",7); | |
| 184 &jnz(&label("maw_finish2")); # helps branch prediction | |
| 185 &jmp(&label("maw_end")); | |
| 186 | |
| 187 &set_label("maw_finish2",1); | |
| 188 for ($i=0; $i<7; $i++) | |
| 189 { | |
| 190 &comment("Tail Round $i"); | |
| 191 &mov("eax",&DWP($i*4,$a)); # *a | |
| 192 &mul($w); # *a * w | |
| 193 &add("eax",$c); # L(t)+=c | |
| 194 &adc("edx",0); # H(t)+=carry | |
| 195 &add("eax",&DWP($i*4,$r)); # L(t)+= *r | |
| 196 &adc("edx",0); # H(t)+=carry | |
| 197 &dec("ecx") if ($i != 7-1); | |
| 198 &mov(&DWP($i*4,$r),"eax"); # *r= L(t); | |
| 199 &mov($c,"edx"); # c= H(t); | |
| 200 &jz(&label("maw_end")) if ($i != 7-1); | |
| 201 } | |
| 202 &set_label("maw_end",0); | |
| 203 &mov("eax",$c); | |
| 204 | |
| 205 &pop("ecx"); # clear variable from | |
| 206 | |
| 207 &function_end($name); | |
| 208 } | |
| 209 | |
| 210 sub bn_mul_words | |
| 211 { | |
| 212 local($name)=@_; | |
| 213 | |
| 214 &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":""); | |
| 215 | |
| 216 $r="eax"; | |
| 217 $a="edx"; | |
| 218 $c="ecx"; | |
| 219 | |
| 220 if ($sse2) { | |
| 221 &picmeup("eax","OPENSSL_ia32cap_P"); | |
| 222 &bt(&DWP(0,"eax"),26); | |
| 223 &jnc(&label("mw_non_sse2")); | |
| 224 | |
| 225 &mov($r,&wparam(0)); | |
| 226 &mov($a,&wparam(1)); | |
| 227 &mov($c,&wparam(2)); | |
| 228 &movd("mm0",&wparam(3)); # mm0 = w | |
| 229 &pxor("mm1","mm1"); # mm1 = carry = 0 | |
| 230 | |
| 231 &set_label("mw_sse2_loop",16); | |
| 232 &movd("mm2",&DWP(0,$a)); # mm2 = a[i] | |
| 233 &pmuludq("mm2","mm0"); # a[i] *= w | |
| 234 &lea($a,&DWP(4,$a)); | |
| 235 &paddq("mm1","mm2"); # carry += a[i]*w | |
| 236 &movd(&DWP(0,$r),"mm1"); # r[i] = carry_low | |
| 237 &sub($c,1); | |
| 238 &psrlq("mm1",32); # carry = carry_high | |
| 239 &lea($r,&DWP(4,$r)); | |
| 240 &jnz(&label("mw_sse2_loop")); | |
| 241 | |
| 242 &movd("eax","mm1"); # return carry | |
| 243 &emms(); | |
| 244 &ret(); | |
| 245 &set_label("mw_non_sse2",16); | |
| 246 } | |
| 247 | |
| 248 # function_begin prologue | |
| 249 &push("ebp"); | |
| 250 &push("ebx"); | |
| 251 &push("esi"); | |
| 252 &push("edi"); | |
| 253 | |
| 254 &comment(""); | |
| 255 $Low="eax"; | |
| 256 $High="edx"; | |
| 257 $a="ebx"; | |
| 258 $w="ecx"; | |
| 259 $r="edi"; | |
| 260 $c="esi"; | |
| 261 $num="ebp"; | |
| 262 | |
| 263 &xor($c,$c); # clear carry | |
| 264 &mov($r,&wparam(0)); # | |
| 265 &mov($a,&wparam(1)); # | |
| 266 &mov($num,&wparam(2)); # | |
| 267 &mov($w,&wparam(3)); # | |
| 268 | |
| 269 &and($num,0xfffffff8); # num / 8 | |
| 270 &jz(&label("mw_finish")); | |
| 271 | |
| 272 &set_label("mw_loop",0); | |
| 273 for ($i=0; $i<32; $i+=4) | |
| 274 { | |
| 275 &comment("Round $i"); | |
| 276 | |
| 277 &mov("eax",&DWP($i,$a,"",0)); # *a | |
| 278 &mul($w); # *a * w | |
| 279 &add("eax",$c); # L(t)+=c | |
| 280 # XXX | |
| 281 | |
| 282 &adc("edx",0); # H(t)+=carry | |
| 283 &mov(&DWP($i,$r,"",0),"eax"); # *r= L(t); | |
| 284 | |
| 285 &mov($c,"edx"); # c= H(t); | |
| 286 } | |
| 287 | |
| 288 &comment(""); | |
| 289 &add($a,32); | |
| 290 &add($r,32); | |
| 291 &sub($num,8); | |
| 292 &jz(&label("mw_finish")); | |
| 293 &jmp(&label("mw_loop")); | |
| 294 | |
| 295 &set_label("mw_finish",0); | |
| 296 &mov($num,&wparam(2)); # get num | |
| 297 &and($num,7); | |
| 298 &jnz(&label("mw_finish2")); | |
| 299 &jmp(&label("mw_end")); | |
| 300 | |
| 301 &set_label("mw_finish2",1); | |
| 302 for ($i=0; $i<7; $i++) | |
| 303 { | |
| 304 &comment("Tail Round $i"); | |
| 305 &mov("eax",&DWP($i*4,$a,"",0));# *a | |
| 306 &mul($w); # *a * w | |
| 307 &add("eax",$c); # L(t)+=c | |
| 308 # XXX | |
| 309 &adc("edx",0); # H(t)+=carry | |
| 310 &mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t); | |
| 311 &mov($c,"edx"); # c= H(t); | |
| 312 &dec($num) if ($i != 7-1); | |
| 313 &jz(&label("mw_end")) if ($i != 7-1); | |
| 314 } | |
| 315 &set_label("mw_end",0); | |
| 316 &mov("eax",$c); | |
| 317 | |
| 318 &function_end($name); | |
| 319 } | |
| 320 | |
| 321 sub bn_sqr_words | |
| 322 { | |
| 323 local($name)=@_; | |
| 324 | |
| 325 &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":""); | |
| 326 | |
| 327 $r="eax"; | |
| 328 $a="edx"; | |
| 329 $c="ecx"; | |
| 330 | |
| 331 if ($sse2) { | |
| 332 &picmeup("eax","OPENSSL_ia32cap_P"); | |
| 333 &bt(&DWP(0,"eax"),26); | |
| 334 &jnc(&label("sqr_non_sse2")); | |
| 335 | |
| 336 &mov($r,&wparam(0)); | |
| 337 &mov($a,&wparam(1)); | |
| 338 &mov($c,&wparam(2)); | |
| 339 | |
| 340 &set_label("sqr_sse2_loop",16); | |
| 341 &movd("mm0",&DWP(0,$a)); # mm0 = a[i] | |
| 342 &pmuludq("mm0","mm0"); # a[i] *= a[i] | |
| 343 &lea($a,&DWP(4,$a)); # a++ | |
| 344 &movq(&QWP(0,$r),"mm0"); # r[i] = a[i]*a[i] | |
| 345 &sub($c,1); | |
| 346 &lea($r,&DWP(8,$r)); # r += 2 | |
| 347 &jnz(&label("sqr_sse2_loop")); | |
| 348 | |
| 349 &emms(); | |
| 350 &ret(); | |
| 351 &set_label("sqr_non_sse2",16); | |
| 352 } | |
| 353 | |
| 354 # function_begin prologue | |
| 355 &push("ebp"); | |
| 356 &push("ebx"); | |
| 357 &push("esi"); | |
| 358 &push("edi"); | |
| 359 | |
| 360 &comment(""); | |
| 361 $r="esi"; | |
| 362 $a="edi"; | |
| 363 $num="ebx"; | |
| 364 | |
| 365 &mov($r,&wparam(0)); # | |
| 366 &mov($a,&wparam(1)); # | |
| 367 &mov($num,&wparam(2)); # | |
| 368 | |
| 369 &and($num,0xfffffff8); # num / 8 | |
| 370 &jz(&label("sw_finish")); | |
| 371 | |
| 372 &set_label("sw_loop",0); | |
| 373 for ($i=0; $i<32; $i+=4) | |
| 374 { | |
| 375 &comment("Round $i"); | |
| 376 &mov("eax",&DWP($i,$a,"",0)); # *a | |
| 377 # XXX | |
| 378 &mul("eax"); # *a * *a | |
| 379 &mov(&DWP($i*2,$r,"",0),"eax"); # | |
| 380 &mov(&DWP($i*2+4,$r,"",0),"edx");# | |
| 381 } | |
| 382 | |
| 383 &comment(""); | |
| 384 &add($a,32); | |
| 385 &add($r,64); | |
| 386 &sub($num,8); | |
| 387 &jnz(&label("sw_loop")); | |
| 388 | |
| 389 &set_label("sw_finish",0); | |
| 390 &mov($num,&wparam(2)); # get num | |
| 391 &and($num,7); | |
| 392 &jz(&label("sw_end")); | |
| 393 | |
| 394 for ($i=0; $i<7; $i++) | |
| 395 { | |
| 396 &comment("Tail Round $i"); | |
| 397 &mov("eax",&DWP($i*4,$a,"",0)); # *a | |
| 398 # XXX | |
| 399 &mul("eax"); # *a * *a | |
| 400 &mov(&DWP($i*8,$r,"",0),"eax"); # | |
| 401 &dec($num) if ($i != 7-1); | |
| 402 &mov(&DWP($i*8+4,$r,"",0),"edx"); | |
| 403 &jz(&label("sw_end")) if ($i != 7-1); | |
| 404 } | |
| 405 &set_label("sw_end",0); | |
| 406 | |
| 407 &function_end($name); | |
| 408 } | |
| 409 | |
| 410 sub bn_div_words | |
| 411 { | |
| 412 local($name)=@_; | |
| 413 | |
| 414 &function_begin_B($name,""); | |
| 415 &mov("edx",&wparam(0)); # | |
| 416 &mov("eax",&wparam(1)); # | |
| 417 &mov("ecx",&wparam(2)); # | |
| 418 &div("ecx"); | |
| 419 &ret(); | |
| 420 &function_end_B($name); | |
| 421 } | |
| 422 | |
| 423 sub bn_add_words | |
| 424 { | |
| 425 local($name)=@_; | |
| 426 | |
| 427 &function_begin($name,""); | |
| 428 | |
| 429 &comment(""); | |
| 430 $a="esi"; | |
| 431 $b="edi"; | |
| 432 $c="eax"; | |
| 433 $r="ebx"; | |
| 434 $tmp1="ecx"; | |
| 435 $tmp2="edx"; | |
| 436 $num="ebp"; | |
| 437 | |
| 438 &mov($r,&wparam(0)); # get r | |
| 439 &mov($a,&wparam(1)); # get a | |
| 440 &mov($b,&wparam(2)); # get b | |
| 441 &mov($num,&wparam(3)); # get num | |
| 442 &xor($c,$c); # clear carry | |
| 443 &and($num,0xfffffff8); # num / 8 | |
| 444 | |
| 445 &jz(&label("aw_finish")); | |
| 446 | |
| 447 &set_label("aw_loop",0); | |
| 448 for ($i=0; $i<8; $i++) | |
| 449 { | |
| 450 &comment("Round $i"); | |
| 451 | |
| 452 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a | |
| 453 &mov($tmp2,&DWP($i*4,$b,"",0)); # *b | |
| 454 &add($tmp1,$c); | |
| 455 &mov($c,0); | |
| 456 &adc($c,$c); | |
| 457 &add($tmp1,$tmp2); | |
| 458 &adc($c,0); | |
| 459 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 460 } | |
| 461 | |
| 462 &comment(""); | |
| 463 &add($a,32); | |
| 464 &add($b,32); | |
| 465 &add($r,32); | |
| 466 &sub($num,8); | |
| 467 &jnz(&label("aw_loop")); | |
| 468 | |
| 469 &set_label("aw_finish",0); | |
| 470 &mov($num,&wparam(3)); # get num | |
| 471 &and($num,7); | |
| 472 &jz(&label("aw_end")); | |
| 473 | |
| 474 for ($i=0; $i<7; $i++) | |
| 475 { | |
| 476 &comment("Tail Round $i"); | |
| 477 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a | |
| 478 &mov($tmp2,&DWP($i*4,$b,"",0));# *b | |
| 479 &add($tmp1,$c); | |
| 480 &mov($c,0); | |
| 481 &adc($c,$c); | |
| 482 &add($tmp1,$tmp2); | |
| 483 &adc($c,0); | |
| 484 &dec($num) if ($i != 6); | |
| 485 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 486 &jz(&label("aw_end")) if ($i != 6); | |
| 487 } | |
| 488 &set_label("aw_end",0); | |
| 489 | |
| 490 # &mov("eax",$c); # $c is "eax" | |
| 491 | |
| 492 &function_end($name); | |
| 493 } | |
| 494 | |
| 495 sub bn_sub_words | |
| 496 { | |
| 497 local($name)=@_; | |
| 498 | |
| 499 &function_begin($name,""); | |
| 500 | |
| 501 &comment(""); | |
| 502 $a="esi"; | |
| 503 $b="edi"; | |
| 504 $c="eax"; | |
| 505 $r="ebx"; | |
| 506 $tmp1="ecx"; | |
| 507 $tmp2="edx"; | |
| 508 $num="ebp"; | |
| 509 | |
| 510 &mov($r,&wparam(0)); # get r | |
| 511 &mov($a,&wparam(1)); # get a | |
| 512 &mov($b,&wparam(2)); # get b | |
| 513 &mov($num,&wparam(3)); # get num | |
| 514 &xor($c,$c); # clear carry | |
| 515 &and($num,0xfffffff8); # num / 8 | |
| 516 | |
| 517 &jz(&label("aw_finish")); | |
| 518 | |
| 519 &set_label("aw_loop",0); | |
| 520 for ($i=0; $i<8; $i++) | |
| 521 { | |
| 522 &comment("Round $i"); | |
| 523 | |
| 524 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a | |
| 525 &mov($tmp2,&DWP($i*4,$b,"",0)); # *b | |
| 526 &sub($tmp1,$c); | |
| 527 &mov($c,0); | |
| 528 &adc($c,$c); | |
| 529 &sub($tmp1,$tmp2); | |
| 530 &adc($c,0); | |
| 531 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 532 } | |
| 533 | |
| 534 &comment(""); | |
| 535 &add($a,32); | |
| 536 &add($b,32); | |
| 537 &add($r,32); | |
| 538 &sub($num,8); | |
| 539 &jnz(&label("aw_loop")); | |
| 540 | |
| 541 &set_label("aw_finish",0); | |
| 542 &mov($num,&wparam(3)); # get num | |
| 543 &and($num,7); | |
| 544 &jz(&label("aw_end")); | |
| 545 | |
| 546 for ($i=0; $i<7; $i++) | |
| 547 { | |
| 548 &comment("Tail Round $i"); | |
| 549 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a | |
| 550 &mov($tmp2,&DWP($i*4,$b,"",0));# *b | |
| 551 &sub($tmp1,$c); | |
| 552 &mov($c,0); | |
| 553 &adc($c,$c); | |
| 554 &sub($tmp1,$tmp2); | |
| 555 &adc($c,0); | |
| 556 &dec($num) if ($i != 6); | |
| 557 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 558 &jz(&label("aw_end")) if ($i != 6); | |
| 559 } | |
| 560 &set_label("aw_end",0); | |
| 561 | |
| 562 # &mov("eax",$c); # $c is "eax" | |
| 563 | |
| 564 &function_end($name); | |
| 565 } | |
| 566 | |
| 567 sub bn_sub_part_words | |
| 568 { | |
| 569 local($name)=@_; | |
| 570 | |
| 571 &function_begin($name,""); | |
| 572 | |
| 573 &comment(""); | |
| 574 $a="esi"; | |
| 575 $b="edi"; | |
| 576 $c="eax"; | |
| 577 $r="ebx"; | |
| 578 $tmp1="ecx"; | |
| 579 $tmp2="edx"; | |
| 580 $num="ebp"; | |
| 581 | |
| 582 &mov($r,&wparam(0)); # get r | |
| 583 &mov($a,&wparam(1)); # get a | |
| 584 &mov($b,&wparam(2)); # get b | |
| 585 &mov($num,&wparam(3)); # get num | |
| 586 &xor($c,$c); # clear carry | |
| 587 &and($num,0xfffffff8); # num / 8 | |
| 588 | |
| 589 &jz(&label("aw_finish")); | |
| 590 | |
| 591 &set_label("aw_loop",0); | |
| 592 for ($i=0; $i<8; $i++) | |
| 593 { | |
| 594 &comment("Round $i"); | |
| 595 | |
| 596 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a | |
| 597 &mov($tmp2,&DWP($i*4,$b,"",0)); # *b | |
| 598 &sub($tmp1,$c); | |
| 599 &mov($c,0); | |
| 600 &adc($c,$c); | |
| 601 &sub($tmp1,$tmp2); | |
| 602 &adc($c,0); | |
| 603 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 604 } | |
| 605 | |
| 606 &comment(""); | |
| 607 &add($a,32); | |
| 608 &add($b,32); | |
| 609 &add($r,32); | |
| 610 &sub($num,8); | |
| 611 &jnz(&label("aw_loop")); | |
| 612 | |
| 613 &set_label("aw_finish",0); | |
| 614 &mov($num,&wparam(3)); # get num | |
| 615 &and($num,7); | |
| 616 &jz(&label("aw_end")); | |
| 617 | |
| 618 for ($i=0; $i<7; $i++) | |
| 619 { | |
| 620 &comment("Tail Round $i"); | |
| 621 &mov($tmp1,&DWP(0,$a,"",0)); # *a | |
| 622 &mov($tmp2,&DWP(0,$b,"",0));# *b | |
| 623 &sub($tmp1,$c); | |
| 624 &mov($c,0); | |
| 625 &adc($c,$c); | |
| 626 &sub($tmp1,$tmp2); | |
| 627 &adc($c,0); | |
| 628 &mov(&DWP(0,$r,"",0),$tmp1); # *r | |
| 629 &add($a, 4); | |
| 630 &add($b, 4); | |
| 631 &add($r, 4); | |
| 632 &dec($num) if ($i != 6); | |
| 633 &jz(&label("aw_end")) if ($i != 6); | |
| 634 } | |
| 635 &set_label("aw_end",0); | |
| 636 | |
| 637 &cmp(&wparam(4),0); | |
| 638 &je(&label("pw_end")); | |
| 639 | |
| 640 &mov($num,&wparam(4)); # get dl | |
| 641 &cmp($num,0); | |
| 642 &je(&label("pw_end")); | |
| 643 &jge(&label("pw_pos")); | |
| 644 | |
| 645 &comment("pw_neg"); | |
| 646 &mov($tmp2,0); | |
| 647 &sub($tmp2,$num); | |
| 648 &mov($num,$tmp2); | |
| 649 &and($num,0xfffffff8); # num / 8 | |
| 650 &jz(&label("pw_neg_finish")); | |
| 651 | |
| 652 &set_label("pw_neg_loop",0); | |
| 653 for ($i=0; $i<8; $i++) | |
| 654 { | |
| 655 &comment("dl<0 Round $i"); | |
| 656 | |
| 657 &mov($tmp1,0); | |
| 658 &mov($tmp2,&DWP($i*4,$b,"",0)); # *b | |
| 659 &sub($tmp1,$c); | |
| 660 &mov($c,0); | |
| 661 &adc($c,$c); | |
| 662 &sub($tmp1,$tmp2); | |
| 663 &adc($c,0); | |
| 664 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 665 } | |
| 666 | |
| 667 &comment(""); | |
| 668 &add($b,32); | |
| 669 &add($r,32); | |
| 670 &sub($num,8); | |
| 671 &jnz(&label("pw_neg_loop")); | |
| 672 | |
| 673 &set_label("pw_neg_finish",0); | |
| 674 &mov($tmp2,&wparam(4)); # get dl | |
| 675 &mov($num,0); | |
| 676 &sub($num,$tmp2); | |
| 677 &and($num,7); | |
| 678 &jz(&label("pw_end")); | |
| 679 | |
| 680 for ($i=0; $i<7; $i++) | |
| 681 { | |
| 682 &comment("dl<0 Tail Round $i"); | |
| 683 &mov($tmp1,0); | |
| 684 &mov($tmp2,&DWP($i*4,$b,"",0));# *b | |
| 685 &sub($tmp1,$c); | |
| 686 &mov($c,0); | |
| 687 &adc($c,$c); | |
| 688 &sub($tmp1,$tmp2); | |
| 689 &adc($c,0); | |
| 690 &dec($num) if ($i != 6); | |
| 691 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 692 &jz(&label("pw_end")) if ($i != 6); | |
| 693 } | |
| 694 | |
| 695 &jmp(&label("pw_end")); | |
| 696 | |
| 697 &set_label("pw_pos",0); | |
| 698 | |
| 699 &and($num,0xfffffff8); # num / 8 | |
| 700 &jz(&label("pw_pos_finish")); | |
| 701 | |
| 702 &set_label("pw_pos_loop",0); | |
| 703 | |
| 704 for ($i=0; $i<8; $i++) | |
| 705 { | |
| 706 &comment("dl>0 Round $i"); | |
| 707 | |
| 708 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a | |
| 709 &sub($tmp1,$c); | |
| 710 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 711 &jnc(&label("pw_nc".$i)); | |
| 712 } | |
| 713 | |
| 714 &comment(""); | |
| 715 &add($a,32); | |
| 716 &add($r,32); | |
| 717 &sub($num,8); | |
| 718 &jnz(&label("pw_pos_loop")); | |
| 719 | |
| 720 &set_label("pw_pos_finish",0); | |
| 721 &mov($num,&wparam(4)); # get dl | |
| 722 &and($num,7); | |
| 723 &jz(&label("pw_end")); | |
| 724 | |
| 725 for ($i=0; $i<7; $i++) | |
| 726 { | |
| 727 &comment("dl>0 Tail Round $i"); | |
| 728 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a | |
| 729 &sub($tmp1,$c); | |
| 730 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 731 &jnc(&label("pw_tail_nc".$i)); | |
| 732 &dec($num) if ($i != 6); | |
| 733 &jz(&label("pw_end")) if ($i != 6); | |
| 734 } | |
| 735 &mov($c,1); | |
| 736 &jmp(&label("pw_end")); | |
| 737 | |
| 738 &set_label("pw_nc_loop",0); | |
| 739 for ($i=0; $i<8; $i++) | |
| 740 { | |
| 741 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a | |
| 742 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 743 &set_label("pw_nc".$i,0); | |
| 744 } | |
| 745 | |
| 746 &comment(""); | |
| 747 &add($a,32); | |
| 748 &add($r,32); | |
| 749 &sub($num,8); | |
| 750 &jnz(&label("pw_nc_loop")); | |
| 751 | |
| 752 &mov($num,&wparam(4)); # get dl | |
| 753 &and($num,7); | |
| 754 &jz(&label("pw_nc_end")); | |
| 755 | |
| 756 for ($i=0; $i<7; $i++) | |
| 757 { | |
| 758 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a | |
| 759 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r | |
| 760 &set_label("pw_tail_nc".$i,0); | |
| 761 &dec($num) if ($i != 6); | |
| 762 &jz(&label("pw_nc_end")) if ($i != 6); | |
| 763 } | |
| 764 | |
| 765 &set_label("pw_nc_end",0); | |
| 766 &mov($c,0); | |
| 767 | |
| 768 &set_label("pw_end",0); | |
| 769 | |
| 770 # &mov("eax",$c); # $c is "eax" | |
| 771 | |
| 772 &function_end($name); | |
| 773 } | |
| 774 | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master