diff options
Diffstat (limited to 'sha256_cryptopp.c')
| -rw-r--r-- | sha256_cryptopp.c | 617 |
1 files changed, 0 insertions, 617 deletions
diff --git a/sha256_cryptopp.c b/sha256_cryptopp.c deleted file mode 100644 index c3eb29f..0000000 --- a/sha256_cryptopp.c +++ /dev/null @@ -1,617 +0,0 @@ - -#include "cpuminer-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(int thr_id, const unsigned char *midstate, - unsigned char *data, - unsigned char *hash1, unsigned char *hash, - const unsigned char *target, - uint32_t max_nonce, unsigned long *hashes_done) -{ - uint32_t *hash32 = (uint32_t *) hash; - uint32_t *nonce = (uint32_t *)(data + 12); - uint32_t n = 0; - unsigned long stat_ctr = 0; - - work_restart[thr_id].restart = 0; - - while (1) { - n++; - *nonce = n; - - runhash(hash1, data, midstate); - runhash(hash, hash1, sha256_init_state); - - stat_ctr++; - - if (unlikely((hash32[7] == 0) && fulltest(hash, target))) { - *hashes_done = stat_ctr; - return true; - } - - if ((n >= max_nonce) || work_restart[thr_id].restart) { - *hashes_done = stat_ctr; - 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(int thr_id, const unsigned char *midstate, - unsigned char *data, - unsigned char *hash1, unsigned char *hash, - const unsigned char *target, - uint32_t max_nonce, unsigned long *hashes_done) -{ - uint32_t *hash32 = (uint32_t *) hash; - uint32_t *nonce = (uint32_t *)(data + 12); - uint32_t n = 0; - unsigned long stat_ctr = 0; - - work_restart[thr_id].restart = 0; - - while (1) { - n++; - *nonce = n; - - runhash32(hash1, data, midstate); - runhash32(hash, hash1, sha256_init_state); - - stat_ctr++; - - if (unlikely((hash32[7] == 0) && fulltest(hash, target))) { - fulltest(hash, target); - - *hashes_done = stat_ctr; - return true; - } - - if ((n >= max_nonce) || work_restart[thr_id].restart) { - *hashes_done = stat_ctr; - return false; - } - } -} - -#endif // #if defined(WANT_CRYPTOPP_ASM32) |