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613 lines
16 KiB
613 lines
16 KiB
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#include "config.h" |
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#include <stdint.h> |
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#include <stdbool.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include "miner.h" |
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typedef uint32_t word32; |
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static word32 rotrFixed(word32 word, unsigned int shift) |
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{ |
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return (word >> shift) | (word << (32 - shift)); |
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} |
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#define blk0(i) (W[i] = data[i]) |
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static const word32 SHA256_K[64] = { |
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0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, |
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0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, |
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0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, |
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0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, |
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0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, |
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0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, |
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0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, |
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0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, |
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0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, |
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0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, |
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0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, |
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0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, |
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0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, |
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0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, |
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0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, |
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0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 |
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}; |
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#define blk2(i) (W[i&15]+=s1(W[(i-2)&15])+W[(i-7)&15]+s0(W[(i-15)&15])) |
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#define Ch(x,y,z) (z^(x&(y^z))) |
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#define Maj(x,y,z) (y^((x^y)&(y^z))) |
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#define a(i) T[(0-i)&7] |
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#define b(i) T[(1-i)&7] |
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#define c(i) T[(2-i)&7] |
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#define d(i) T[(3-i)&7] |
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#define e(i) T[(4-i)&7] |
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#define f(i) T[(5-i)&7] |
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#define g(i) T[(6-i)&7] |
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#define h(i) T[(7-i)&7] |
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#define R(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+SHA256_K[i+j]+(j?blk2(i):blk0(i));\ |
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d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i)) |
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// for SHA256 |
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#define S0(x) (rotrFixed(x,2)^rotrFixed(x,13)^rotrFixed(x,22)) |
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#define S1(x) (rotrFixed(x,6)^rotrFixed(x,11)^rotrFixed(x,25)) |
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#define s0(x) (rotrFixed(x,7)^rotrFixed(x,18)^(x>>3)) |
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#define s1(x) (rotrFixed(x,17)^rotrFixed(x,19)^(x>>10)) |
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static void SHA256_Transform(word32 *state, const word32 *data) |
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{ |
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word32 W[16] = { }; |
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word32 T[8]; |
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unsigned int j; |
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/* Copy context->state[] to working vars */ |
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memcpy(T, state, sizeof(T)); |
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/* 64 operations, partially loop unrolled */ |
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for (j=0; j<64; j+=16) |
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{ |
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R( 0); R( 1); R( 2); R( 3); |
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R( 4); R( 5); R( 6); R( 7); |
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R( 8); R( 9); R(10); R(11); |
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R(12); R(13); R(14); R(15); |
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} |
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/* Add the working vars back into context.state[] */ |
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state[0] += a(0); |
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state[1] += b(0); |
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state[2] += c(0); |
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state[3] += d(0); |
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state[4] += e(0); |
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state[5] += f(0); |
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state[6] += g(0); |
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state[7] += h(0); |
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} |
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static void runhash(void *state, const void *input, const void *init) |
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{ |
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memcpy(state, init, 32); |
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SHA256_Transform(state, input); |
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} |
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/* suspiciously similar to ScanHash* from bitcoin */ |
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bool scanhash_cryptopp(int thr_id, const unsigned char *midstate, |
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unsigned char *data, |
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unsigned char *hash1, unsigned char *hash, |
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const unsigned char *target, |
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uint32_t max_nonce, uint32_t *last_nonce, |
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uint32_t n) |
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{ |
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uint32_t *hash32 = (uint32_t *) hash; |
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uint32_t *nonce = (uint32_t *)(data + 76); |
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data += 64; |
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work_restart[thr_id].restart = 0; |
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while (1) { |
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n++; |
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*nonce = n; |
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runhash(hash1, data, midstate); |
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runhash(hash, hash1, sha256_init_state); |
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if (unlikely((hash32[7] == 0) && fulltest(hash, target))) { |
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*last_nonce = n; |
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return true; |
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} |
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if ((n >= max_nonce) || work_restart[thr_id].restart) { |
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*last_nonce = n; |
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return false; |
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} |
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} |
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} |
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#if defined(WANT_CRYPTOPP_ASM32) |
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#define CRYPTOPP_FASTCALL |
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#define CRYPTOPP_BOOL_X86 1 |
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#define CRYPTOPP_BOOL_X64 0 |
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#define CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE 0 |
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#ifdef CRYPTOPP_GENERATE_X64_MASM |
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#define AS1(x) x*newline* |
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#define AS2(x, y) x, y*newline* |
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#define AS3(x, y, z) x, y, z*newline* |
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#define ASS(x, y, a, b, c, d) x, y, a*64+b*16+c*4+d*newline* |
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#define ASL(x) label##x:*newline* |
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#define ASJ(x, y, z) x label##y*newline* |
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#define ASC(x, y) x label##y*newline* |
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#define AS_HEX(y) 0##y##h |
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#elif defined(_MSC_VER) || defined(__BORLANDC__) |
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#define CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY |
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#define AS1(x) __asm {x} |
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#define AS2(x, y) __asm {x, y} |
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#define AS3(x, y, z) __asm {x, y, z} |
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#define ASS(x, y, a, b, c, d) __asm {x, y, (a)*64+(b)*16+(c)*4+(d)} |
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#define ASL(x) __asm {label##x:} |
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#define ASJ(x, y, z) __asm {x label##y} |
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#define ASC(x, y) __asm {x label##y} |
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#define CRYPTOPP_NAKED __declspec(naked) |
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#define AS_HEX(y) 0x##y |
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#else |
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#define CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY |
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// define these in two steps to allow arguments to be expanded |
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#define GNU_AS1(x) #x ";" |
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#define GNU_AS2(x, y) #x ", " #y ";" |
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#define GNU_AS3(x, y, z) #x ", " #y ", " #z ";" |
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#define GNU_ASL(x) "\n" #x ":" |
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#define GNU_ASJ(x, y, z) #x " " #y #z ";" |
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#define AS1(x) GNU_AS1(x) |
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#define AS2(x, y) GNU_AS2(x, y) |
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#define AS3(x, y, z) GNU_AS3(x, y, z) |
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#define ASS(x, y, a, b, c, d) #x ", " #y ", " #a "*64+" #b "*16+" #c "*4+" #d ";" |
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#define ASL(x) GNU_ASL(x) |
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#define ASJ(x, y, z) GNU_ASJ(x, y, z) |
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#define ASC(x, y) #x " " #y ";" |
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#define CRYPTOPP_NAKED |
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#define AS_HEX(y) 0x##y |
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#endif |
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#define IF0(y) |
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#define IF1(y) y |
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#ifdef CRYPTOPP_GENERATE_X64_MASM |
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#define ASM_MOD(x, y) ((x) MOD (y)) |
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#define XMMWORD_PTR XMMWORD PTR |
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#else |
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// GNU assembler doesn't seem to have mod operator |
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#define ASM_MOD(x, y) ((x)-((x)/(y))*(y)) |
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// GAS 2.15 doesn't support XMMWORD PTR. it seems necessary only for MASM |
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#define XMMWORD_PTR |
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#endif |
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#if CRYPTOPP_BOOL_X86 |
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#define AS_REG_1 ecx |
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#define AS_REG_2 edx |
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#define AS_REG_3 esi |
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#define AS_REG_4 edi |
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#define AS_REG_5 eax |
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#define AS_REG_6 ebx |
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#define AS_REG_7 ebp |
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#define AS_REG_1d ecx |
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#define AS_REG_2d edx |
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#define AS_REG_3d esi |
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#define AS_REG_4d edi |
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#define AS_REG_5d eax |
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#define AS_REG_6d ebx |
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#define AS_REG_7d ebp |
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#define WORD_SZ 4 |
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#define WORD_REG(x) e##x |
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#define WORD_PTR DWORD PTR |
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#define AS_PUSH_IF86(x) AS1(push e##x) |
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#define AS_POP_IF86(x) AS1(pop e##x) |
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#define AS_JCXZ jecxz |
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#elif CRYPTOPP_BOOL_X64 |
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#ifdef CRYPTOPP_GENERATE_X64_MASM |
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#define AS_REG_1 rcx |
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#define AS_REG_2 rdx |
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#define AS_REG_3 r8 |
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#define AS_REG_4 r9 |
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#define AS_REG_5 rax |
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#define AS_REG_6 r10 |
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#define AS_REG_7 r11 |
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#define AS_REG_1d ecx |
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#define AS_REG_2d edx |
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#define AS_REG_3d r8d |
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#define AS_REG_4d r9d |
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#define AS_REG_5d eax |
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#define AS_REG_6d r10d |
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#define AS_REG_7d r11d |
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#else |
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#define AS_REG_1 rdi |
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#define AS_REG_2 rsi |
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#define AS_REG_3 rdx |
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#define AS_REG_4 rcx |
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#define AS_REG_5 r8 |
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#define AS_REG_6 r9 |
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#define AS_REG_7 r10 |
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#define AS_REG_1d edi |
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#define AS_REG_2d esi |
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#define AS_REG_3d edx |
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#define AS_REG_4d ecx |
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#define AS_REG_5d r8d |
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#define AS_REG_6d r9d |
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#define AS_REG_7d r10d |
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#endif |
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#define WORD_SZ 8 |
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#define WORD_REG(x) r##x |
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#define WORD_PTR QWORD PTR |
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#define AS_PUSH_IF86(x) |
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#define AS_POP_IF86(x) |
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#define AS_JCXZ jrcxz |
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#endif |
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static void CRYPTOPP_FASTCALL X86_SHA256_HashBlocks(word32 *state, const word32 *data, size_t len |
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#if defined(_MSC_VER) && (_MSC_VER == 1200) |
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, ... // VC60 workaround: prevent VC 6 from inlining this function |
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#endif |
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) |
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{ |
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#if defined(_MSC_VER) && (_MSC_VER == 1200) |
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AS2(mov ecx, [state]) |
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AS2(mov edx, [data]) |
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#endif |
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#define LOCALS_SIZE 8*4 + 16*4 + 4*WORD_SZ |
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#define H(i) [BASE+ASM_MOD(1024+7-(i),8)*4] |
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#define G(i) H(i+1) |
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#define F(i) H(i+2) |
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#define E(i) H(i+3) |
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#define D(i) H(i+4) |
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#define C(i) H(i+5) |
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#define B(i) H(i+6) |
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#define A(i) H(i+7) |
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#define Wt(i) BASE+8*4+ASM_MOD(1024+15-(i),16)*4 |
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#define Wt_2(i) Wt((i)-2) |
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#define Wt_15(i) Wt((i)-15) |
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#define Wt_7(i) Wt((i)-7) |
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#define K_END [BASE+8*4+16*4+0*WORD_SZ] |
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#define STATE_SAVE [BASE+8*4+16*4+1*WORD_SZ] |
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#define DATA_SAVE [BASE+8*4+16*4+2*WORD_SZ] |
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#define DATA_END [BASE+8*4+16*4+3*WORD_SZ] |
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#define Kt(i) WORD_REG(si)+(i)*4 |
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#if CRYPTOPP_BOOL_X86 |
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#define BASE esp+4 |
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#elif defined(__GNUC__) |
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#define BASE r8 |
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#else |
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#define BASE rsp |
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#endif |
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#define RA0(i, edx, edi) \ |
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AS2( add edx, [Kt(i)] )\ |
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AS2( add edx, [Wt(i)] )\ |
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AS2( add edx, H(i) )\ |
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#define RA1(i, edx, edi) |
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#define RB0(i, edx, edi) |
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#define RB1(i, edx, edi) \ |
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AS2( mov AS_REG_7d, [Wt_2(i)] )\ |
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AS2( mov edi, [Wt_15(i)])\ |
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AS2( mov ebx, AS_REG_7d )\ |
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AS2( shr AS_REG_7d, 10 )\ |
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AS2( ror ebx, 17 )\ |
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AS2( xor AS_REG_7d, ebx )\ |
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AS2( ror ebx, 2 )\ |
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AS2( xor ebx, AS_REG_7d )/* s1(W_t-2) */\ |
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AS2( add ebx, [Wt_7(i)])\ |
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AS2( mov AS_REG_7d, edi )\ |
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AS2( shr AS_REG_7d, 3 )\ |
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AS2( ror edi, 7 )\ |
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AS2( add ebx, [Wt(i)])/* s1(W_t-2) + W_t-7 + W_t-16 */\ |
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AS2( xor AS_REG_7d, edi )\ |
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AS2( add edx, [Kt(i)])\ |
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AS2( ror edi, 11 )\ |
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AS2( add edx, H(i) )\ |
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AS2( xor AS_REG_7d, edi )/* s0(W_t-15) */\ |
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AS2( add AS_REG_7d, ebx )/* W_t = s1(W_t-2) + W_t-7 + s0(W_t-15) W_t-16*/\ |
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AS2( mov [Wt(i)], AS_REG_7d)\ |
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AS2( add edx, AS_REG_7d )\ |
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#define ROUND(i, r, eax, ecx, edi, edx)\ |
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/* in: edi = E */\ |
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/* unused: eax, ecx, temp: ebx, AS_REG_7d, out: edx = T1 */\ |
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AS2( mov edx, F(i) )\ |
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AS2( xor edx, G(i) )\ |
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AS2( and edx, edi )\ |
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AS2( xor edx, G(i) )/* Ch(E,F,G) = (G^(E&(F^G))) */\ |
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AS2( mov AS_REG_7d, edi )\ |
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AS2( ror edi, 6 )\ |
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AS2( ror AS_REG_7d, 25 )\ |
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RA##r(i, edx, edi )/* H + Wt + Kt + Ch(E,F,G) */\ |
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AS2( xor AS_REG_7d, edi )\ |
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AS2( ror edi, 5 )\ |
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AS2( xor AS_REG_7d, edi )/* S1(E) */\ |
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AS2( add edx, AS_REG_7d )/* T1 = S1(E) + Ch(E,F,G) + H + Wt + Kt */\ |
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RB##r(i, edx, edi )/* H + Wt + Kt + Ch(E,F,G) */\ |
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/* in: ecx = A, eax = B^C, edx = T1 */\ |
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/* unused: edx, temp: ebx, AS_REG_7d, out: eax = A, ecx = B^C, edx = E */\ |
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AS2( mov ebx, ecx )\ |
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AS2( xor ecx, B(i) )/* A^B */\ |
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AS2( and eax, ecx )\ |
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AS2( xor eax, B(i) )/* Maj(A,B,C) = B^((A^B)&(B^C) */\ |
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AS2( mov AS_REG_7d, ebx )\ |
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AS2( ror ebx, 2 )\ |
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AS2( add eax, edx )/* T1 + Maj(A,B,C) */\ |
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AS2( add edx, D(i) )\ |
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AS2( mov D(i), edx )\ |
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AS2( ror AS_REG_7d, 22 )\ |
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AS2( xor AS_REG_7d, ebx )\ |
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AS2( ror ebx, 11 )\ |
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AS2( xor AS_REG_7d, ebx )\ |
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AS2( add eax, AS_REG_7d )/* T1 + S0(A) + Maj(A,B,C) */\ |
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AS2( mov H(i), eax )\ |
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#define SWAP_COPY(i) \ |
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AS2( mov WORD_REG(bx), [WORD_REG(dx)+i*WORD_SZ])\ |
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AS1( bswap WORD_REG(bx))\ |
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AS2( mov [Wt(i*(1+CRYPTOPP_BOOL_X64)+CRYPTOPP_BOOL_X64)], WORD_REG(bx)) |
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#if defined(__GNUC__) |
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#if CRYPTOPP_BOOL_X64 |
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FixedSizeAlignedSecBlock<byte, LOCALS_SIZE> workspace; |
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#endif |
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__asm__ __volatile__ |
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( |
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#if CRYPTOPP_BOOL_X64 |
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"lea %4, %%r8;" |
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#endif |
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".intel_syntax noprefix;" |
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#elif defined(CRYPTOPP_GENERATE_X64_MASM) |
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ALIGN 8 |
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X86_SHA256_HashBlocks PROC FRAME |
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rex_push_reg rsi |
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push_reg rdi |
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push_reg rbx |
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push_reg rbp |
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alloc_stack(LOCALS_SIZE+8) |
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.endprolog |
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mov rdi, r8 |
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lea rsi, [?SHA256_K@CryptoPP@@3QBIB + 48*4] |
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#endif |
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#if CRYPTOPP_BOOL_X86 |
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#ifndef __GNUC__ |
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AS2( mov edi, [len]) |
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AS2( lea WORD_REG(si), [SHA256_K+48*4]) |
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#endif |
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#if !defined(_MSC_VER) || (_MSC_VER < 1400) |
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AS_PUSH_IF86(bx) |
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#endif |
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AS_PUSH_IF86(bp) |
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AS2( mov ebx, esp) |
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AS2( and esp, -16) |
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AS2( sub WORD_REG(sp), LOCALS_SIZE) |
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AS_PUSH_IF86(bx) |
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#endif |
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AS2( mov STATE_SAVE, WORD_REG(cx)) |
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AS2( mov DATA_SAVE, WORD_REG(dx)) |
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AS2( lea WORD_REG(ax), [WORD_REG(di) + WORD_REG(dx)]) |
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AS2( mov DATA_END, WORD_REG(ax)) |
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AS2( mov K_END, WORD_REG(si)) |
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#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE |
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#if CRYPTOPP_BOOL_X86 |
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AS2( test edi, 1) |
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ASJ( jnz, 2, f) |
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AS1( dec DWORD PTR K_END) |
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#endif |
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AS2( movdqa xmm0, XMMWORD_PTR [WORD_REG(cx)+0*16]) |
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AS2( movdqa xmm1, XMMWORD_PTR [WORD_REG(cx)+1*16]) |
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#endif |
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#if CRYPTOPP_BOOL_X86 |
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#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE |
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ASJ( jmp, 0, f) |
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#endif |
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ASL(2) // non-SSE2 |
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AS2( mov esi, ecx) |
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AS2( lea edi, A(0)) |
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AS2( mov ecx, 8) |
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AS1( rep movsd) |
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AS2( mov esi, K_END) |
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ASJ( jmp, 3, f) |
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#endif |
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#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE |
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ASL(0) |
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AS2( movdqa E(0), xmm1) |
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AS2( movdqa A(0), xmm0) |
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#endif |
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#if CRYPTOPP_BOOL_X86 |
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ASL(3) |
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#endif |
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AS2( sub WORD_REG(si), 48*4) |
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SWAP_COPY(0) SWAP_COPY(1) SWAP_COPY(2) SWAP_COPY(3) |
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SWAP_COPY(4) SWAP_COPY(5) SWAP_COPY(6) SWAP_COPY(7) |
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#if CRYPTOPP_BOOL_X86 |
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SWAP_COPY(8) SWAP_COPY(9) SWAP_COPY(10) SWAP_COPY(11) |
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SWAP_COPY(12) SWAP_COPY(13) SWAP_COPY(14) SWAP_COPY(15) |
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#endif |
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AS2( mov edi, E(0)) // E |
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AS2( mov eax, B(0)) // B |
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AS2( xor eax, C(0)) // B^C |
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AS2( mov ecx, A(0)) // A |
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|
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ROUND(0, 0, eax, ecx, edi, edx) |
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ROUND(1, 0, ecx, eax, edx, edi) |
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ROUND(2, 0, eax, ecx, edi, edx) |
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ROUND(3, 0, ecx, eax, edx, edi) |
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ROUND(4, 0, eax, ecx, edi, edx) |
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ROUND(5, 0, ecx, eax, edx, edi) |
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ROUND(6, 0, eax, ecx, edi, edx) |
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ROUND(7, 0, ecx, eax, edx, edi) |
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ROUND(8, 0, eax, ecx, edi, edx) |
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ROUND(9, 0, ecx, eax, edx, edi) |
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ROUND(10, 0, eax, ecx, edi, edx) |
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ROUND(11, 0, ecx, eax, edx, edi) |
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ROUND(12, 0, eax, ecx, edi, edx) |
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ROUND(13, 0, ecx, eax, edx, edi) |
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ROUND(14, 0, eax, ecx, edi, edx) |
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ROUND(15, 0, ecx, eax, edx, edi) |
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|
|
ASL(1) |
|
AS2(add WORD_REG(si), 4*16) |
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ROUND(0, 1, eax, ecx, edi, edx) |
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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(int thr_id, 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; |
|
|
|
work_restart[thr_id].restart = 0; |
|
|
|
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) || work_restart[thr_id].restart) { |
|
*last_nonce = n; |
|
return false; |
|
} |
|
} |
|
} |
|
|
|
#endif // #if defined(WANT_CRYPTOPP_ASM32)
|
|
|