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added @pwpiwi 's latest changes to "hf mf hardnested"

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iceman1001 2016-01-03 17:16:50 +01:00
commit a531720ae6
4 changed files with 226 additions and 153 deletions
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19
common/parity.h
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@ -13,21 +13,24 @@
extern const uint8_t OddByteParity[256];
static inline uint8_t oddparity8(uint8_t bt)
{
return OddByteParity[bt];
}
#define oddparity8(x) (OddByteParity[(x)])
extern const uint8_t EvenByteParity[256];
static inline uint8_t evenparity8(const uint8_t bt)
{
return EvenByteParity[bt];
static inline bool /*__attribute__((always_inline))*/ evenparity8(const uint8_t x) {
#if !defined __i386__ || !defined __GNUC__
return EvenByteParity[x];
#else
uint8_t y;
__asm( "testb $255, %1\n"
"setpo %0\n" : "=r"(y) : "r"(x): );
return y;
#endif
}
static inline uint32_t evenparity32(uint32_t x)
static inline uint8_t evenparity32(uint32_t x)
{
x ^= x >> 16;
x ^= x >> 8;