mirror of
https://github.com/JayDDee/cpuminer-opt.git
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138 lines
3.0 KiB
C
138 lines
3.0 KiB
C
#include "tribus-gate.h"
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include "algo/jh//sph_jh.h"
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#include "algo/keccak/sph_keccak.h"
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#ifdef NO_AES_NI
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#include "algo/echo/sph_echo.h"
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#else
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#include "algo/echo/aes_ni/hash_api.h"
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#endif
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typedef struct {
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sph_jh512_context jh;
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sph_keccak512_context keccak;
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#ifdef NO_AES_NI
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sph_echo512_context echo;
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#else
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hashState_echo echo;
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#endif
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} tribus_ctx_holder;
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static __thread tribus_ctx_holder tribus_ctx;
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bool tribus_thread_init()
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{
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sph_jh512_init( &tribus_ctx.jh );
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sph_keccak512_init( &tribus_ctx.keccak );
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#ifdef NO_AES_NI
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sph_echo512_init( &tribus_ctx.echo );
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#else
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init_echo( &tribus_ctx.echo, 512 );
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#endif
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return true;
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}
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void tribus_hash(void *state, const void *input)
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{
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unsigned char hash[128] __attribute__ ((aligned (32)));
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tribus_ctx_holder ctx;
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memcpy( &ctx, &tribus_ctx, sizeof(tribus_ctx) );
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sph_jh512( &ctx.jh, input+64, 16 );
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sph_jh512_close( &ctx.jh, (void*) hash );
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sph_keccak512( &ctx.keccak, (const void*) hash, 64 );
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sph_keccak512_close( &ctx.keccak, (void*) hash );
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#ifdef NO_AES_NI
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sph_echo512( &ctx.echo, hash, 64 );
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sph_echo512_close (&ctx.echo, hash );
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#else
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update_final_echo( &ctx.echo, (BitSequence *) hash,
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(const BitSequence *) hash, 512 );
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#endif
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memcpy(state, hash, 32);
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}
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int scanhash_tribus(int thr_id, struct work *work, uint32_t max_nonce, uint64_t *hashes_done)
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{
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uint32_t _ALIGN(128) hash32[8];
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uint32_t _ALIGN(128) endiandata[20];
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uint32_t *pdata = work->data;
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uint32_t *ptarget = work->target;
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const uint32_t first_nonce = pdata[19];
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const uint32_t Htarg = ptarget[7];
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uint32_t n = pdata[19] - 1;
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uint64_t htmax[] = {
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0,
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0xF,
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0xFF,
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0xFFF,
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0xFFFF,
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0x10000000
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};
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uint32_t masks[] = {
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0xFFFFFFFF,
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0xFFFFFFF0,
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0xFFFFFF00,
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0xFFFFF000,
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0xFFFF0000,
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0
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};
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// we need bigendian data...
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for (int i=0; i < 19; i++) {
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be32enc(&endiandata[i], pdata[i]);
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}
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// precalc midstate
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sph_jh512_init( &tribus_ctx.jh );
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sph_jh512( &tribus_ctx.jh, endiandata, 64 );
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#ifdef DEBUG_ALGO
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printf("[%d] Htarg=%X\n", thr_id, Htarg);
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#endif
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for (int m=0; m < 6; m++) {
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if (Htarg <= htmax[m]) {
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uint32_t mask = masks[m];
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do {
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pdata[19] = ++n;
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be32enc(&endiandata[19], n);
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tribus_hash(hash32, endiandata);
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#ifndef DEBUG_ALGO
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if ((!(hash32[7] & mask)) && fulltest(hash32, ptarget)) {
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work_set_target_ratio(work, hash32);
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*hashes_done = n - first_nonce + 1;
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return 1;
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}
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#else
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if (!(n % 0x1000) && !thr_id) printf(".");
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if (!(hash32[7] & mask)) {
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printf("[%d]",thr_id);
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if (fulltest(hash32, ptarget)) {
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work_set_target_ratio(work, hash32);
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*hashes_done = n - first_nonce + 1;
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return 1;
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}
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}
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#endif
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} while (n < max_nonce && !work_restart[thr_id].restart);
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// see blake.c if else to understand the loop on htmax => mask
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break;
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}
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}
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*hashes_done = n - first_nonce + 1;
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pdata[19] = n;
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return 0;
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}
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