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

driver-opencl.c

@@ -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);
 

scrypt120713.cl

@@ -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;
 }