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Code Issues Releases Wiki Activity

Use flip helpers to simplify code for calculation of midstate.

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This commit is contained in:
Con Kolivas 2013-04-22 09:23:13 +10:00
parent f50ae46850
commit c351f8d8d3
2 changed files with 17 additions and 13 deletions
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20
cgminer.c
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@ -1473,22 +1473,16 @@ static bool jobj_binary(const json_t *obj, const char *key,
static void calc_midstate(struct work *work) static void calc_midstate(struct work *work)
{ {
union { unsigned char data[64];
unsigned char c[64]; uint32_t *data32 = (uint32_t *)data;
uint32_t i[16];
} data;
int swapcounter;
for (swapcounter = 0; swapcounter < 16; swapcounter++)
data.i[swapcounter] = swab32(((uint32_t*) (work->data))[swapcounter]);
sha2_context ctx; sha2_context ctx;
flip64(data32, work->data);
sha2_starts(&ctx); sha2_starts(&ctx);
sha2_update(&ctx, data.c, 64); sha2_update(&ctx, data, 64);
memcpy(work->midstate, ctx.state, sizeof(work->midstate)); memcpy(work->midstate, ctx.state, 32);
#if defined(__BIG_ENDIAN__) || defined(MIPSEB) #if defined(__BIG_ENDIAN__) || defined(MIPSEB)
int i; flip32(work->midstate, work->midstate);
for (i = 0; i < 8; i++)
(((uint32_t*) (work->midstate))[i]) = swab32(((uint32_t*) (work->midstate))[i]);
#endif #endif
} }

10
miner.h
View File

@ -640,6 +640,16 @@ static inline void flip32(void *dest_p, const void *src_p)
dest[i] = swab32(src[i]); dest[i] = swab32(src[i]);
} }
static inline void flip64(void *dest_p, const void *src_p)
{
uint32_t *dest = dest_p;
const uint32_t *src = src_p;
int i;
for (i = 0; i < 16; i++)
dest[i] = swab32(src[i]);
}
static inline void flip80(void *dest_p, const void *src_p) static inline void flip80(void *dest_p, const void *src_p)
{ {
uint32_t *dest = dest_p; uint32_t *dest = dest_p;