add minor optimization for target_to_hex

This commit is contained in:
Jethro Grassie 2019-04-02 20:13:21 -04:00
parent 0be08eddfc
commit 5f253f4827
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1 changed files with 8 additions and 4 deletions

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@ -978,12 +978,16 @@ target_to_hex(uint64_t target, char *target_hex)
{
memset(target_hex, '0', 8);
BIGNUM *res = BN_new();
BIGNUM *bnt = NULL;
char st[96];
snprintf(st, 96, "%"PRIu64, target);
BIGNUM *bnt = BN_new();
#ifdef SIXTY_FOUR_BIT_LONG
BN_set_word(bnt, target);
#else
char st[24];
snprintf(st, 24, "%"PRIu64, target);
BN_dec2bn(&bnt, st);
#endif
BN_div(res, NULL, base_diff, bnt, bn_ctx);
unsigned char bnb[64];
unsigned char bnb[32];
BN_bn2bin(res, &bnb[0]);
size_t cc = 4 - (32 - BN_num_bytes(res));