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diff: cleanup after windows test

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This commit is contained in:
Tanguy Pruvot 2015-09-24 03:57:12 +02:00
parent 5308898d1c
commit fade2b74b5
2 changed files with 28 additions and 8 deletions
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25
bignum.cpp
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@ -25,9 +25,10 @@ extern "C" void bn_nbits_to_uchar(const uint32_t nBits, unsigned char *target)
hex2bin(target, buff, 32);
}
// unused, but should allow more than 256bits targets
#if 0
extern "C" double bn_hash_target_ratio(uint32_t* hash, uint32_t* target)
{
unsigned char* uc;
double dhash;
if (!opt_showdiff)
@ -47,6 +48,26 @@ extern "C" double bn_hash_target_ratio(uint32_t* hash, uint32_t* target)
else
return dhash;
}
#endif
// compute the diff ratio between a found hash and the target
extern "C" double bn_hash_target_ratio(uint32_t* hash, uint32_t* target)
{
uint256 h, t;
double dhash;
if (!opt_showdiff)
return 0.0;
memcpy(&t, (void*) target, 32);
memcpy(&h, (void*) hash, 32);
dhash = h.getdouble();
if (dhash > 0.)
return t.getdouble() / dhash;
else
return dhash;
}
// store ratio in work struct
extern "C" void bn_store_hash_target_ratio(uint32_t* hash, uint32_t* target, struct work* work)
@ -56,4 +77,4 @@ extern "C" void bn_store_hash_target_ratio(uint32_t* hash, uint32_t* target, str
work->shareratio = bn_hash_target_ratio(hash, target);
work->sharediff = work->targetdiff * work->shareratio;
}
}
}

11
ccminer.cpp
View File

@ -604,25 +604,24 @@ static bool jobj_binary(const json_t *obj, const char *key,
static void calc_network_diff(struct work *work)
{
// sample for diff 43.281 : 1c05ea29
uchar rtarget[48] = { 0 };
uint64_t *data64, d64;
// todo: endian reversed on longpoll could be zr5 specific...
uint32_t nbits = have_longpoll ? work->data[18] : swab32(work->data[18]);
uint32_t shift = (swab32(nbits) & 0xff); // 0x1c = 28
uint32_t bits = (nbits & 0xffffff);
int shfb = 8 * (26 - (shift - 3));
int16_t shift = (swab32(nbits) & 0xff); // 0x1c = 28
#if 1
uint64_t diffone = 0x0000FFFF00000000ull;
double d = (double)0x0000ffff / (double)bits;
for (int m=shift; m < 29; m++) d *= 256.0;
for (int m=29; m < shift; m++) d /= 256.0;
if (opt_debug_diff)
applog(LOG_DEBUG, "diff: %f -> shift %u, bits %08x, shfb %d", d, shift, bits, shfb);
applog(LOG_DEBUG, "net diff: %f -> shift %u, bits %08x", d, shift, bits);
net_diff = d;
return;
#else
uchar rtarget[48] = { 0 };
uint64_t *data64, d64;
uint64_t diffone = 0xFFFF000000000000ull; //swab64(0xFFFFull);
int shfb = 8 * (26 - (shift - 3));
switch (opt_algo) {
case ALGO_QUARK: