mirror of
https://github.com/JayDDee/cpuminer-opt.git
synced 2025-09-17 23:44:27 +00:00
v3.9.1
This commit is contained in:
49
algo/m7m.c
49
algo/m7m.c
@@ -7,7 +7,6 @@
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#include <string.h>
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#include <float.h>
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#include <math.h>
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#include "algo/sha/sph_sha2.h"
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#include "algo/keccak/sph_keccak.h"
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#include "algo/haval/sph-haval.h"
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#include "algo/tiger/sph_tiger.h"
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@@ -117,13 +116,8 @@ uint32_t sw2_(int nnounce)
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}
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typedef struct {
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#ifndef USE_SPH_SHA
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SHA256_CTX sha256;
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SHA512_CTX sha512;
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#else
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sph_sha256_context sha256;
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sph_sha512_context sha512;
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#endif
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sph_keccak512_context keccak;
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sph_whirlpool_context whirlpool;
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sph_haval256_5_context haval;
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@@ -135,13 +129,8 @@ m7m_ctx_holder m7m_ctx;
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void init_m7m_ctx()
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{
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#ifndef USE_SPH_SHA
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SHA256_Init( &m7m_ctx.sha256 );
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SHA512_Init( &m7m_ctx.sha512 );
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#else
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sph_sha256_init( &m7m_ctx.sha256 );
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sph_sha512_init( &m7m_ctx.sha512 );
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#endif
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sph_keccak512_init( &m7m_ctx.keccak );
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sph_whirlpool_init( &m7m_ctx.whirlpool );
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sph_haval256_5_init( &m7m_ctx.haval );
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@@ -176,28 +165,18 @@ int scanhash_m7m_hash( int thr_id, struct work* work,
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m7m_ctx_holder ctx1, ctx2 __attribute__ ((aligned (64)));
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memcpy( &ctx1, &m7m_ctx, sizeof(m7m_ctx) );
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#ifndef USE_SPH_SHA
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SHA256_CTX ctxf_sha256;
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#else
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sph_sha256_context ctxf_sha256;
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#endif
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memcpy(data, pdata, 80);
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#ifndef USE_SPH_SHA
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SHA256_Update( &ctx1.sha256, data, M7_MIDSTATE_LEN );
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SHA512_Update( &ctx1.sha512, data, M7_MIDSTATE_LEN );
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#else
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sph_sha256( &ctx1.sha256, data, M7_MIDSTATE_LEN );
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sph_sha512( &ctx1.sha512, data, M7_MIDSTATE_LEN );
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#endif
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sph_keccak512( &ctx1.keccak, data, M7_MIDSTATE_LEN );
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sph_whirlpool( &ctx1.whirlpool, data, M7_MIDSTATE_LEN );
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sph_haval256_5( &ctx1.haval, data, M7_MIDSTATE_LEN );
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sph_tiger( &ctx1.tiger, data, M7_MIDSTATE_LEN );
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sph_ripemd160( &ctx1.ripemd, data, M7_MIDSTATE_LEN );
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// the following calculations can be performed once and the results shared
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mpz_t magipi, magisw, product, bns0, bns1;
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mpf_t magifpi, magifpi0, mpt1, mpt2, mptmp, mpten;
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@@ -222,22 +201,11 @@ int scanhash_m7m_hash( int thr_id, struct work* work,
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memcpy( &ctx2, &ctx1, sizeof(m7m_ctx) );
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// with 4 way can a single midstate be shared among lanes?
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// do sinlge round of midstate and inyerleave for final
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#ifndef USE_SPH_SHA
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SHA256_Update( &ctx2.sha256, data_p64, 80 - M7_MIDSTATE_LEN );
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SHA256_Final( (unsigned char*) (bhash[0]), &ctx2.sha256 );
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SHA512_Update( &ctx2.sha512, data_p64, 80 - M7_MIDSTATE_LEN );
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SHA512_Final( (unsigned char*) (bhash[1]), &ctx2.sha512 );
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#else
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sph_sha256( &ctx2.sha256, data_p64, 80 - M7_MIDSTATE_LEN );
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sph_sha256_close( &ctx2.sha256, (void*)(bhash[0]) );
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sph_sha512( &ctx2.sha512, data_p64, 80 - M7_MIDSTATE_LEN );
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sph_sha512_close( &ctx2.sha512, (void*)(bhash[1]) );
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#endif
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sph_keccak512( &ctx2.keccak, data_p64, 80 - M7_MIDSTATE_LEN );
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sph_keccak512_close( &ctx2.keccak, (void*)(bhash[2]) );
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@@ -253,7 +221,6 @@ int scanhash_m7m_hash( int thr_id, struct work* work,
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sph_ripemd160( &ctx2.ripemd, data_p64, 80 - M7_MIDSTATE_LEN );
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sph_ripemd160_close( &ctx2.ripemd, (void*)(bhash[6]) );
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// 4 way serial
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mpz_import(bns0, a, -1, p, -1, 0, bhash[0]);
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mpz_set(bns1, bns0);
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mpz_set(product, bns0);
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@@ -269,17 +236,10 @@ int scanhash_m7m_hash( int thr_id, struct work* work,
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bytes = mpz_sizeinbase(product, 256);
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mpz_export((void *)bdata, NULL, -1, 1, 0, 0, product);
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#ifndef USE_SPH_SHA
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SHA256_Init( &ctxf_sha256 );
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SHA256_Update( &ctxf_sha256, bdata, bytes );
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SHA256_Final( (unsigned char*) hash, &ctxf_sha256 );
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#else
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sph_sha256_init( &ctxf_sha256 );
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sph_sha256( &ctxf_sha256, bdata, bytes );
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sph_sha256_close( &ctxf_sha256, (void*)(hash) );
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#endif
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// do once and share
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digits=(int)((sqrt((double)(n/2))*(1.+EPS))/9000+75);
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mp_bitcnt_t prec = (long int)(digits*BITS_PER_DIGIT+16);
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mpf_set_prec_raw(magifpi, prec);
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@@ -302,7 +262,6 @@ int scanhash_m7m_hash( int thr_id, struct work* work,
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mpz_set_f(magipi, magifpi);
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mpz_add(magipi,magipi,magisw);
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mpz_add(product,product,magipi);
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// share magipi, product and do serial
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mpz_import(bns0, b, -1, p, -1, 0, (void*)(hash));
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mpz_add(bns1, bns1, bns0);
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mpz_mul(product,product,bns1);
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@@ -312,18 +271,11 @@ int scanhash_m7m_hash( int thr_id, struct work* work,
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mpzscale=bytes;
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mpz_export(bdata, NULL, -1, 1, 0, 0, product);
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#ifndef USE_SPH_SHA
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SHA256_Init( &ctxf_sha256 );
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SHA256_Update( &ctxf_sha256, bdata, bytes );
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SHA256_Final( (unsigned char*) hash, &ctxf_sha256 );
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#else
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sph_sha256_init( &ctxf_sha256 );
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sph_sha256( &ctxf_sha256, bdata, bytes );
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sph_sha256_close( &ctxf_sha256, (void*)(hash) );
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#endif
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}
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// this is the scanhash part
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const unsigned char *hash_ = (const unsigned char *)hash;
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const unsigned char *target_ = (const unsigned char *)ptarget;
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for ( i = 31; i >= 0; i-- )
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@@ -354,7 +306,6 @@ int scanhash_m7m_hash( int thr_id, struct work* work,
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pdata[19] = n;
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// do this in hashm7m
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out:
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mpf_set_prec_raw(magifpi, prec0);
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mpf_set_prec_raw(magifpi0, prec0);
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