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Correct target for stratum support with scrypt mining.

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This commit is contained in:
Con Kolivas 2012-12-22 08:37:43 +11:00
parent b9c7f3d169
commit bb64799c84
1 changed files with 13 additions and 5 deletions
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14
cgminer.c
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@ -4960,23 +4960,31 @@ static void gen_hash(unsigned char *data, unsigned char *hash, int len)
* cover a huge range of difficulty targets, though not all 256 bits' worth */ * cover a huge range of difficulty targets, though not all 256 bits' worth */
static void set_work_target(struct work *work, double diff) static void set_work_target(struct work *work, double diff)
{ {
unsigned char rtarget[32], target[32]; unsigned char target[32];
double d64;
uint64_t *data64, h64; uint64_t *data64, h64;
double d64;
d64 = diffone; d64 = diffone;
d64 /= diff; d64 /= diff;
h64 = d64; h64 = d64;
memset(target, 0, 32);
if (h64) { if (h64) {
unsigned char rtarget[32];
memset(rtarget, 0, 32); memset(rtarget, 0, 32);
if (opt_scrypt)
data64 = (uint64_t *)(rtarget + 2);
else
data64 = (uint64_t *)(rtarget + 4); data64 = (uint64_t *)(rtarget + 4);
*data64 = htobe64(h64); *data64 = htobe64(h64);
swab256(target, rtarget); swab256(target, rtarget);
} else { } else {
/* Support for the classic all FFs just-below-1 diff */ /* Support for the classic all FFs just-below-1 diff */
if (opt_scrypt)
memset(target, 0xff, 30);
else
memset(target, 0xff, 28); memset(target, 0xff, 28);
memset(&target[28], 0, 4);
} }
if (opt_debug) { if (opt_debug) {