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Use a 64 bit unsigned integer on the diff target to generate the hex target.

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This commit is contained in:
ckolivas 2012-10-11 10:46:45 +11:00
parent a533f106fd
commit ca962ee58b
1 changed files with 6 additions and 11 deletions
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17
cgminer.c
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@ -4533,18 +4533,13 @@ static void gen_hash(unsigned char *data, unsigned char *hash, int len)
static void set_work_target(struct work *work, int diff)
{
unsigned char rtarget[33], target[33];
uint8_t *data8;
int i, j;
uint64_t *data64, h64;
/* Scale to any diff by setting number of bits according to diff */
hex2bin(rtarget, "00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 32);
data8 = (uint8_t *)(rtarget + 4);
for (i = 1, j = 0; i < diff; i++, j++) {
int byte = j / 8;
int bit = j % 8;
data8[byte] &= ~(128 >> bit);
}
hex2bin(rtarget, "00000000ffff0000000000000000000000000000000000000000000000000000", 32);
data64 = (uint64_t *)(rtarget + 4);
h64 = be64toh(*data64);
h64 /= (uint64_t)diff;
*data64 = htobe64(h64);
swab256(target, rtarget);
if (opt_debug) {
char *htarget = bin2hex(target, 32);