thodg/cgminer/sha256_cryptopp.c
Tag
-
Show log
Commit
-
Hash : d4af2d05
Author :
Date : 2012-07-06T02:39:32
Turn work_restart array into a bool in thr_info
-
sha256_cryptopp.c
-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609
#include "config.h" #include <stdint.h> #include <stdbool.h> #include <string.h> #include <stdlib.h> #include <stdio.h> #include "miner.h" typedef uint32_t word32; static word32 rotrFixed(word32 word, unsigned int shift) { return (word >> shift) | (word << (32 - shift)); } #define blk0(i) (W[i] = data[i]) static const word32 SHA256_K[64] = { 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 }; #define blk2(i) (W[i&15]+=s1(W[(i-2)&15])+W[(i-7)&15]+s0(W[(i-15)&15])) #define Ch(x,y,z) (z^(x&(y^z))) #define Maj(x,y,z) (y^((x^y)&(y^z))) #define a(i) T[(0-i)&7] #define b(i) T[(1-i)&7] #define c(i) T[(2-i)&7] #define d(i) T[(3-i)&7] #define e(i) T[(4-i)&7] #define f(i) T[(5-i)&7] #define g(i) T[(6-i)&7] #define h(i) T[(7-i)&7] #define R(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+SHA256_K[i+j]+(j?blk2(i):blk0(i));\ d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i)) // for SHA256 #define S0(x) (rotrFixed(x,2)^rotrFixed(x,13)^rotrFixed(x,22)) #define S1(x) (rotrFixed(x,6)^rotrFixed(x,11)^rotrFixed(x,25)) #define s0(x) (rotrFixed(x,7)^rotrFixed(x,18)^(x>>3)) #define s1(x) (rotrFixed(x,17)^rotrFixed(x,19)^(x>>10)) static void SHA256_Transform(word32 *state, const word32 *data) { word32 W[16] = { }; word32 T[8]; unsigned int j; /* Copy context->state[] to working vars */ memcpy(T, state, sizeof(T)); /* 64 operations, partially loop unrolled */ for (j=0; j<64; j+=16) { R( 0); R( 1); R( 2); R( 3); R( 4); R( 5); R( 6); R( 7); R( 8); R( 9); R(10); R(11); R(12); R(13); R(14); R(15); } /* Add the working vars back into context.state[] */ state[0] += a(0); state[1] += b(0); state[2] += c(0); state[3] += d(0); state[4] += e(0); state[5] += f(0); state[6] += g(0); state[7] += h(0); } static void runhash(void *state, const void *input, const void *init) { memcpy(state, init, 32); SHA256_Transform(state, input); } /* suspiciously similar to ScanHash* from bitcoin */ bool scanhash_cryptopp(struct thr_info*thr, const unsigned char *midstate, unsigned char *data, unsigned char *hash1, unsigned char *hash, const unsigned char *target, uint32_t max_nonce, uint32_t *last_nonce, uint32_t n) { uint32_t *hash32 = (uint32_t *) hash; uint32_t *nonce = (uint32_t *)(data + 76); data += 64; while (1) { n++; *nonce = n; runhash(hash1, data, midstate); runhash(hash, hash1, sha256_init_state); if (unlikely((hash32[7] == 0) && fulltest(hash, target))) { *last_nonce = n; return true; } if ((n >= max_nonce) || thr->work_restart) { *last_nonce = n; return false; } } } #if defined(WANT_CRYPTOPP_ASM32) #define CRYPTOPP_FASTCALL #define CRYPTOPP_BOOL_X86 1 #define CRYPTOPP_BOOL_X64 0 #define CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE 0 #ifdef CRYPTOPP_GENERATE_X64_MASM #define AS1(x) x*newline* #define AS2(x, y) x, y*newline* #define AS3(x, y, z) x, y, z*newline* #define ASS(x, y, a, b, c, d) x, y, a*64+b*16+c*4+d*newline* #define ASL(x) label##x:*newline* #define ASJ(x, y, z) x label##y*newline* #define ASC(x, y) x label##y*newline* #define AS_HEX(y) 0##y##h #elif defined(_MSC_VER) || defined(__BORLANDC__) #define CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY #define AS1(x) __asm {x} #define AS2(x, y) __asm {x, y} #define AS3(x, y, z) __asm {x, y, z} #define ASS(x, y, a, b, c, d) __asm {x, y, (a)*64+(b)*16+(c)*4+(d)} #define ASL(x) __asm {label##x:} #define ASJ(x, y, z) __asm {x label##y} #define ASC(x, y) __asm {x label##y} #define CRYPTOPP_NAKED __declspec(naked) #define AS_HEX(y) 0x##y #else #define CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY // define these in two steps to allow arguments to be expanded #define GNU_AS1(x) #x ";" #define GNU_AS2(x, y) #x ", " #y ";" #define GNU_AS3(x, y, z) #x ", " #y ", " #z ";" #define GNU_ASL(x) "\n" #x ":" #define GNU_ASJ(x, y, z) #x " " #y #z ";" #define AS1(x) GNU_AS1(x) #define AS2(x, y) GNU_AS2(x, y) #define AS3(x, y, z) GNU_AS3(x, y, z) #define ASS(x, y, a, b, c, d) #x ", " #y ", " #a "*64+" #b "*16+" #c "*4+" #d ";" #define ASL(x) GNU_ASL(x) #define ASJ(x, y, z) GNU_ASJ(x, y, z) #define ASC(x, y) #x " " #y ";" #define CRYPTOPP_NAKED #define AS_HEX(y) 0x##y #endif #define IF0(y) #define IF1(y) y #ifdef CRYPTOPP_GENERATE_X64_MASM #define ASM_MOD(x, y) ((x) MOD (y)) #define XMMWORD_PTR XMMWORD PTR #else // GNU assembler doesn't seem to have mod operator #define ASM_MOD(x, y) ((x)-((x)/(y))*(y)) // GAS 2.15 doesn't support XMMWORD PTR. it seems necessary only for MASM #define XMMWORD_PTR #endif #if CRYPTOPP_BOOL_X86 #define AS_REG_1 ecx #define AS_REG_2 edx #define AS_REG_3 esi #define AS_REG_4 edi #define AS_REG_5 eax #define AS_REG_6 ebx #define AS_REG_7 ebp #define AS_REG_1d ecx #define AS_REG_2d edx #define AS_REG_3d esi #define AS_REG_4d edi #define AS_REG_5d eax #define AS_REG_6d ebx #define AS_REG_7d ebp #define WORD_SZ 4 #define WORD_REG(x) e##x #define WORD_PTR DWORD PTR #define AS_PUSH_IF86(x) AS1(push e##x) #define AS_POP_IF86(x) AS1(pop e##x) #define AS_JCXZ jecxz #elif CRYPTOPP_BOOL_X64 #ifdef CRYPTOPP_GENERATE_X64_MASM #define AS_REG_1 rcx #define AS_REG_2 rdx #define AS_REG_3 r8 #define AS_REG_4 r9 #define AS_REG_5 rax #define AS_REG_6 r10 #define AS_REG_7 r11 #define AS_REG_1d ecx #define AS_REG_2d edx #define AS_REG_3d r8d #define AS_REG_4d r9d #define AS_REG_5d eax #define AS_REG_6d r10d #define AS_REG_7d r11d #else #define AS_REG_1 rdi #define AS_REG_2 rsi #define AS_REG_3 rdx #define AS_REG_4 rcx #define AS_REG_5 r8 #define AS_REG_6 r9 #define AS_REG_7 r10 #define AS_REG_1d edi #define AS_REG_2d esi #define AS_REG_3d edx #define AS_REG_4d ecx #define AS_REG_5d r8d #define AS_REG_6d r9d #define AS_REG_7d r10d #endif #define WORD_SZ 8 #define WORD_REG(x) r##x #define WORD_PTR QWORD PTR #define AS_PUSH_IF86(x) #define AS_POP_IF86(x) #define AS_JCXZ jrcxz #endif static void CRYPTOPP_FASTCALL X86_SHA256_HashBlocks(word32 *state, const word32 *data, size_t len #if defined(_MSC_VER) && (_MSC_VER == 1200) , ... // VC60 workaround: prevent VC 6 from inlining this function #endif ) { #if defined(_MSC_VER) && (_MSC_VER == 1200) AS2(mov ecx, [state]) AS2(mov edx, [data]) #endif #define LOCALS_SIZE 8*4 + 16*4 + 4*WORD_SZ #define H(i) [BASE+ASM_MOD(1024+7-(i),8)*4] #define G(i) H(i+1) #define F(i) H(i+2) #define E(i) H(i+3) #define D(i) H(i+4) #define C(i) H(i+5) #define B(i) H(i+6) #define A(i) H(i+7) #define Wt(i) BASE+8*4+ASM_MOD(1024+15-(i),16)*4 #define Wt_2(i) Wt((i)-2) #define Wt_15(i) Wt((i)-15) #define Wt_7(i) Wt((i)-7) #define K_END [BASE+8*4+16*4+0*WORD_SZ] #define STATE_SAVE [BASE+8*4+16*4+1*WORD_SZ] #define DATA_SAVE [BASE+8*4+16*4+2*WORD_SZ] #define DATA_END [BASE+8*4+16*4+3*WORD_SZ] #define Kt(i) WORD_REG(si)+(i)*4 #if CRYPTOPP_BOOL_X86 #define BASE esp+4 #elif defined(__GNUC__) #define BASE r8 #else #define BASE rsp #endif #define RA0(i, edx, edi) \ AS2( add edx, [Kt(i)] )\ AS2( add edx, [Wt(i)] )\ AS2( add edx, H(i) )\ #define RA1(i, edx, edi) #define RB0(i, edx, edi) #define RB1(i, edx, edi) \ AS2( mov AS_REG_7d, [Wt_2(i)] )\ AS2( mov edi, [Wt_15(i)])\ AS2( mov ebx, AS_REG_7d )\ AS2( shr AS_REG_7d, 10 )\ AS2( ror ebx, 17 )\ AS2( xor AS_REG_7d, ebx )\ AS2( ror ebx, 2 )\ AS2( xor ebx, AS_REG_7d )/* s1(W_t-2) */\ AS2( add ebx, [Wt_7(i)])\ AS2( mov AS_REG_7d, edi )\ AS2( shr AS_REG_7d, 3 )\ AS2( ror edi, 7 )\ AS2( add ebx, [Wt(i)])/* s1(W_t-2) + W_t-7 + W_t-16 */\ AS2( xor AS_REG_7d, edi )\ AS2( add edx, [Kt(i)])\ AS2( ror edi, 11 )\ AS2( add edx, H(i) )\ AS2( xor AS_REG_7d, edi )/* s0(W_t-15) */\ AS2( add AS_REG_7d, ebx )/* W_t = s1(W_t-2) + W_t-7 + s0(W_t-15) W_t-16*/\ AS2( mov [Wt(i)], AS_REG_7d)\ AS2( add edx, AS_REG_7d )\ #define ROUND(i, r, eax, ecx, edi, edx)\ /* in: edi = E */\ /* unused: eax, ecx, temp: ebx, AS_REG_7d, out: edx = T1 */\ AS2( mov edx, F(i) )\ AS2( xor edx, G(i) )\ AS2( and edx, edi )\ AS2( xor edx, G(i) )/* Ch(E,F,G) = (G^(E&(F^G))) */\ AS2( mov AS_REG_7d, edi )\ AS2( ror edi, 6 )\ AS2( ror AS_REG_7d, 25 )\ RA##r(i, edx, edi )/* H + Wt + Kt + Ch(E,F,G) */\ AS2( xor AS_REG_7d, edi )\ AS2( ror edi, 5 )\ AS2( xor AS_REG_7d, edi )/* S1(E) */\ AS2( add edx, AS_REG_7d )/* T1 = S1(E) + Ch(E,F,G) + H + Wt + Kt */\ RB##r(i, edx, edi )/* H + Wt + Kt + Ch(E,F,G) */\ /* in: ecx = A, eax = B^C, edx = T1 */\ /* unused: edx, temp: ebx, AS_REG_7d, out: eax = A, ecx = B^C, edx = E */\ AS2( mov ebx, ecx )\ AS2( xor ecx, B(i) )/* A^B */\ AS2( and eax, ecx )\ AS2( xor eax, B(i) )/* Maj(A,B,C) = B^((A^B)&(B^C) */\ AS2( mov AS_REG_7d, ebx )\ AS2( ror ebx, 2 )\ AS2( add eax, edx )/* T1 + Maj(A,B,C) */\ AS2( add edx, D(i) )\ AS2( mov D(i), edx )\ AS2( ror AS_REG_7d, 22 )\ AS2( xor AS_REG_7d, ebx )\ AS2( ror ebx, 11 )\ AS2( xor AS_REG_7d, ebx )\ AS2( add eax, AS_REG_7d )/* T1 + S0(A) + Maj(A,B,C) */\ AS2( mov H(i), eax )\ #define SWAP_COPY(i) \ AS2( mov WORD_REG(bx), [WORD_REG(dx)+i*WORD_SZ])\ AS1( bswap WORD_REG(bx))\ AS2( mov [Wt(i*(1+CRYPTOPP_BOOL_X64)+CRYPTOPP_BOOL_X64)], WORD_REG(bx)) #if defined(__GNUC__) #if CRYPTOPP_BOOL_X64 FixedSizeAlignedSecBlock<byte, LOCALS_SIZE> workspace; #endif __asm__ __volatile__ ( #if CRYPTOPP_BOOL_X64 "lea %4, %%r8;" #endif ".intel_syntax noprefix;" #elif defined(CRYPTOPP_GENERATE_X64_MASM) ALIGN 8 X86_SHA256_HashBlocks PROC FRAME rex_push_reg rsi push_reg rdi push_reg rbx push_reg rbp alloc_stack(LOCALS_SIZE+8) .endprolog mov rdi, r8 lea rsi, [?SHA256_K@CryptoPP@@3QBIB + 48*4] #endif #if CRYPTOPP_BOOL_X86 #ifndef __GNUC__ AS2( mov edi, [len]) AS2( lea WORD_REG(si), [SHA256_K+48*4]) #endif #if !defined(_MSC_VER) || (_MSC_VER < 1400) AS_PUSH_IF86(bx) #endif AS_PUSH_IF86(bp) AS2( mov ebx, esp) AS2( and esp, -16) AS2( sub WORD_REG(sp), LOCALS_SIZE) AS_PUSH_IF86(bx) #endif AS2( mov STATE_SAVE, WORD_REG(cx)) AS2( mov DATA_SAVE, WORD_REG(dx)) AS2( lea WORD_REG(ax), [WORD_REG(di) + WORD_REG(dx)]) AS2( mov DATA_END, WORD_REG(ax)) AS2( mov K_END, WORD_REG(si)) #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE #if CRYPTOPP_BOOL_X86 AS2( test edi, 1) ASJ( jnz, 2, f) AS1( dec DWORD PTR K_END) #endif AS2( movdqa xmm0, XMMWORD_PTR [WORD_REG(cx)+0*16]) AS2( movdqa xmm1, XMMWORD_PTR [WORD_REG(cx)+1*16]) #endif #if CRYPTOPP_BOOL_X86 #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE ASJ( jmp, 0, f) #endif ASL(2) // non-SSE2 AS2( mov esi, ecx) AS2( lea edi, A(0)) AS2( mov ecx, 8) AS1( rep movsd) AS2( mov esi, K_END) ASJ( jmp, 3, f) #endif #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE ASL(0) AS2( movdqa E(0), xmm1) AS2( movdqa A(0), xmm0) #endif #if CRYPTOPP_BOOL_X86 ASL(3) #endif AS2( sub WORD_REG(si), 48*4) SWAP_COPY(0) SWAP_COPY(1) SWAP_COPY(2) SWAP_COPY(3) SWAP_COPY(4) SWAP_COPY(5) SWAP_COPY(6) SWAP_COPY(7) #if CRYPTOPP_BOOL_X86 SWAP_COPY(8) SWAP_COPY(9) SWAP_COPY(10) SWAP_COPY(11) SWAP_COPY(12) SWAP_COPY(13) SWAP_COPY(14) SWAP_COPY(15) #endif AS2( mov edi, E(0)) // E AS2( mov eax, B(0)) // B AS2( xor eax, C(0)) // B^C AS2( mov ecx, A(0)) // A ROUND(0, 0, eax, ecx, edi, edx) ROUND(1, 0, ecx, eax, edx, edi) ROUND(2, 0, eax, ecx, edi, edx) ROUND(3, 0, ecx, eax, edx, edi) ROUND(4, 0, eax, ecx, edi, edx) ROUND(5, 0, ecx, eax, edx, edi) ROUND(6, 0, eax, ecx, edi, edx) ROUND(7, 0, ecx, eax, edx, edi) ROUND(8, 0, eax, ecx, edi, edx) ROUND(9, 0, ecx, eax, edx, edi) ROUND(10, 0, eax, ecx, edi, edx) ROUND(11, 0, ecx, eax, edx, edi) ROUND(12, 0, eax, ecx, edi, edx) ROUND(13, 0, ecx, eax, edx, edi) ROUND(14, 0, eax, ecx, edi, edx) ROUND(15, 0, ecx, eax, edx, edi) ASL(1) AS2(add WORD_REG(si), 4*16) ROUND(0, 1, eax, ecx, edi, edx) ROUND(1, 1, ecx, eax, edx, edi) ROUND(2, 1, eax, ecx, edi, edx) ROUND(3, 1, ecx, eax, edx, edi) ROUND(4, 1, eax, ecx, edi, edx) ROUND(5, 1, ecx, eax, edx, edi) ROUND(6, 1, eax, ecx, edi, edx) ROUND(7, 1, ecx, eax, edx, edi) ROUND(8, 1, eax, ecx, edi, edx) ROUND(9, 1, ecx, eax, edx, edi) ROUND(10, 1, eax, ecx, edi, edx) ROUND(11, 1, ecx, eax, edx, edi) ROUND(12, 1, eax, ecx, edi, edx) ROUND(13, 1, ecx, eax, edx, edi) ROUND(14, 1, eax, ecx, edi, edx) ROUND(15, 1, ecx, eax, edx, edi) AS2( cmp WORD_REG(si), K_END) ASJ( jb, 1, b) AS2( mov WORD_REG(dx), DATA_SAVE) AS2( add WORD_REG(dx), 64) AS2( mov AS_REG_7, STATE_SAVE) AS2( mov DATA_SAVE, WORD_REG(dx)) #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE #if CRYPTOPP_BOOL_X86 AS2( test DWORD PTR K_END, 1) ASJ( jz, 4, f) #endif AS2( movdqa xmm1, XMMWORD_PTR [AS_REG_7+1*16]) AS2( movdqa xmm0, XMMWORD_PTR [AS_REG_7+0*16]) AS2( paddd xmm1, E(0)) AS2( paddd xmm0, A(0)) AS2( movdqa [AS_REG_7+1*16], xmm1) AS2( movdqa [AS_REG_7+0*16], xmm0) AS2( cmp WORD_REG(dx), DATA_END) ASJ( jb, 0, b) #endif #if CRYPTOPP_BOOL_X86 #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE ASJ( jmp, 5, f) ASL(4) // non-SSE2 #endif AS2( add [AS_REG_7+0*4], ecx) // A AS2( add [AS_REG_7+4*4], edi) // E AS2( mov eax, B(0)) AS2( mov ebx, C(0)) AS2( mov ecx, D(0)) AS2( add [AS_REG_7+1*4], eax) AS2( add [AS_REG_7+2*4], ebx) AS2( add [AS_REG_7+3*4], ecx) AS2( mov eax, F(0)) AS2( mov ebx, G(0)) AS2( mov ecx, H(0)) AS2( add [AS_REG_7+5*4], eax) AS2( add [AS_REG_7+6*4], ebx) AS2( add [AS_REG_7+7*4], ecx) AS2( mov ecx, AS_REG_7d) AS2( cmp WORD_REG(dx), DATA_END) ASJ( jb, 2, b) #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE ASL(5) #endif #endif AS_POP_IF86(sp) AS_POP_IF86(bp) #if !defined(_MSC_VER) || (_MSC_VER < 1400) AS_POP_IF86(bx) #endif #ifdef CRYPTOPP_GENERATE_X64_MASM add rsp, LOCALS_SIZE+8 pop rbp pop rbx pop rdi pop rsi ret X86_SHA256_HashBlocks ENDP #endif #ifdef __GNUC__ ".att_syntax prefix;" : : "c" (state), "d" (data), "S" (SHA256_K+48), "D" (len) #if CRYPTOPP_BOOL_X64 , "m" (workspace[0]) #endif : "memory", "cc", "%eax" #if CRYPTOPP_BOOL_X64 , "%rbx", "%r8", "%r10" #endif ); #endif } static inline bool HasSSE2(void) { return false; } static void SHA256_Transform32(word32 *state, const word32 *data) { word32 W[16]; int i; for (i = 0; i < 16; i++) W[i] = swab32(((word32 *)(data))[i]); X86_SHA256_HashBlocks(state, W, 16 * 4); } static void runhash32(void *state, const void *input, const void *init) { memcpy(state, init, 32); SHA256_Transform32(state, input); } /* suspiciously similar to ScanHash* from bitcoin */ bool scanhash_asm32(struct thr_info*thr, const unsigned char *midstate, unsigned char *data, unsigned char *hash1, unsigned char *hash, const unsigned char *target, uint32_t max_nonce, uint32_t *last_nonce, uint32_t n) { uint32_t *hash32 = (uint32_t *) hash; uint32_t *nonce = (uint32_t *)(data + 76); data += 64; while (1) { n++; *nonce = n; runhash32(hash1, data, midstate); runhash32(hash, hash1, sha256_init_state); if (unlikely((hash32[7] == 0) && fulltest(hash, target))) { *last_nonce = n; return true; } if ((n >= max_nonce) || thr->work_restart) { *last_nonce = n; return false; } } } #endif // #if defined(WANT_CRYPTOPP_ASM32)