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Fix target testing with scrypt kernel as it would have been missing shares below target.

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This commit is contained in:
Con Kolivas 2012-07-24 17:52:54 +10:00
parent 3a0d60cfe1
commit f98774c35c
2 changed files with 9 additions and 11 deletions
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2
driver-opencl.c
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@ -1053,7 +1053,7 @@ static cl_int queue_scrypt_kernel(_clState *clState, dev_blk_ctx *blk, __maybe_u
cl_uint le_target;
cl_int status = 0;
le_target = ~swab32(*(cl_uint *)(blk->work->target + 28));
le_target = *(cl_uint *)(blk->work->target + 28);
clState->cldata = blk->work->data;
status = clEnqueueWriteBuffer(clState->commandQueue, clState->CLbuffer0, true, 0, 80, clState->cldata, 0, NULL,NULL);

18
scrypt120713.cl
View File

@ -2,10 +2,7 @@
#define Ch(x,y,z) bitselect(z,y,x)
#define Maj(x,y,z) Ch((x^z),y,z)
uint4 EndianSwap4(uint4 n)
{
return rotl(n&0x00FF00FF,24U)|rotl(n&0xFF00FF00,8U);
}
#define EndianSwap(n) (rotl(n&0x00FF00FF,24U)|rotl(n&0xFF00FF00,8U))
#define Tr2(x) (rotl(x, 30U) ^ rotl(x, 19U) ^ rotl(x, 10U))
#define Tr1(x) (rotl(x, 26U) ^ rotl(x, 21U) ^ rotl(x, 7U))
@ -552,7 +549,7 @@ void shittify(uint4 B[8])
#pragma unroll
for(uint i=0; i<4; ++i)
B[i] = EndianSwap4(tmp[i]);
B[i] = EndianSwap(tmp[i]);
tmp[0] = (uint4)(B[5].x,B[6].y,B[7].z,B[4].w);
tmp[1] = (uint4)(B[6].x,B[7].y,B[4].z,B[5].w);
@ -561,7 +558,7 @@ void shittify(uint4 B[8])
#pragma unroll
for(uint i=0; i<4; ++i)
B[i+4] = EndianSwap4(tmp[i]);
B[i+4] = EndianSwap(tmp[i]);
}
void unshittify(uint4 B[8])
@ -574,7 +571,7 @@ void unshittify(uint4 B[8])
#pragma unroll
for(uint i=0; i<4; ++i)
B[i] = EndianSwap4(tmp[i]);
B[i] = EndianSwap(tmp[i]);
tmp[0] = (uint4)(B[7].x,B[6].y,B[5].z,B[4].w);
tmp[1] = (uint4)(B[4].x,B[7].y,B[6].z,B[5].w);
@ -583,7 +580,7 @@ void unshittify(uint4 B[8])
#pragma unroll
for(uint i=0; i<4; ++i)
B[i+4] = EndianSwap4(tmp[i]);
B[i+4] = EndianSwap(tmp[i]);
}
void salsa(uint4 B[8])
@ -723,8 +720,9 @@ const uint4 midstate0, const uint4 midstate16, const uint target)
SHA256(&tmp0,&tmp1, X[4], X[5], X[6], X[7]);
SHA256_fixed(&tmp0,&tmp1);
SHA256(&ostate0,&ostate1, tmp0, tmp1, (uint4)(0x80000000U, 0U, 0U, 0U), (uint4)(0U, 0U, 0U, 0x300U));
if (!(ostate1.w & target))
bool found = (EndianSwap(ostate1.w) <= target);
if (found)
output[FOUND] = output[NFLAG & gid] = gid;
}