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reorganize BitcoinMiner to make it easier to add different SHA256 routines

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git-svn-id: https://bitcoin.svn.sourceforge.net/svnroot/bitcoin/trunk@154 1a98c847-1fd6-4fd8-948a-caf3550aa51b
This commit is contained in:
s_nakamoto
2010-09-13 22:14:24 +00:00
parent fdbf76d4f4
commit 3df62878c3
4 changed files with 176 additions and 114 deletions
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52
sha256.cpp
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@@ -2,6 +2,8 @@
// Distributed under the MIT/X11 software license, see the accompanying
// file license.txt or http://www.opensource.org/licenses/mit-license.php.
// tcatm's 4-way 128-bit SSE2 SHA-256
#ifdef FOURWAYSSE2
#include <string.h>
@@ -13,6 +15,8 @@
#define NPAR 32
extern void DoubleBlockSHA256(const void* pin, void* pout, const void* pinit, unsigned int hash[8][NPAR], const void* init2);
static const unsigned int sha256_consts[] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, /* 0 */
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
@@ -88,8 +92,54 @@ static inline void dumpreg(__m128i x, char *msg) {
#define dumpstate()
#endif
// Align by increasing pointer, must have extra space at end of buffer
template <size_t nBytes, typename T>
T* alignup(T* p)
{
union
{
T* ptr;
size_t n;
} u;
u.ptr = p;
u.n = (u.n + (nBytes-1)) & ~(nBytes-1);
return u.ptr;
}
void Double_BlockSHA256(const void* pin, void* pad, const void *pre, unsigned int thash[9][NPAR], const void *init)
static const unsigned int pSHA256InitState[8] =
{0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};
unsigned int ScanHash_4WaySSE2(char* pmidstate, char* pblock, char* phash1, char* phash, unsigned int& nHashesDone)
{
unsigned int& nNonce = *(unsigned int*)(pblock + 12);
for (;;)
{
nNonce += NPAR;
unsigned int thashbuf[9][NPAR];
unsigned int (&thash)[9][NPAR] = *alignup<16>(&thashbuf);
DoubleBlockSHA256(pblock, phash1, pmidstate, thash, pSHA256InitState);
for (int j = 0; j < NPAR; j++)
{
if (thash[7][j] == 0)
{
for (int i = 0; i < 32/4; i++)
((unsigned int*)phash)[i] = thash[i][j];
return nNonce + j;
}
}
if ((nNonce & 0xffff) == 0)
{
nHashesDone = 0xffff+1;
return -1;
}
}
}
void DoubleBlockSHA256(const void* pin, void* pad, const void *pre, unsigned int thash[9][NPAR], const void *init)
{
unsigned int* In = (unsigned int*)pin;
unsigned int* Pad = (unsigned int*)pad;