diff options
| -rw-r--r-- | alpha_mmintrin.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/alpha_mmintrin.h b/alpha_mmintrin.h index 525f04d..d741005 100644 --- a/alpha_mmintrin.h +++ b/alpha_mmintrin.h @@ -45,7 +45,18 @@ __ctlz(uint64_t val) { return ret; } -/* Add the 16-bit values in M1 to the 16-bit values in M2 (paddw). */ +/* Add the 8-bit values in M! to the 8-bit values in M2 (paddb). */ +static __inline uint64_t +__addub8(uint64_t m1, uint64_t m2) { + uint64_t signs = (m1 ^ m2) & 0x8080808080808080; + m1 &= ~signs; + m2 &= ~signs; + m1 += m2; + m1 ^= signs; + return m1; +} + +/* Add the 16-bit values in M1 to the 16-bit values in M2 (paddw). */ static __inline uint64_t __adduw4(uint64_t m1, uint64_t m2) { uint64_t signs = (m1 ^ m2) & 0x8000800080008000; |