Template:SSE2 Instructions
x86 and x86-64 - SSE2 Instructions, C-Intrinsic reference from Intel Intrinsics Guide
| Mnemonic | Description | C-Intrinsic | ||
|---|---|---|---|---|
| bitwise logical | return | parameter | ||
| pand | packed and, r := a & b | _m128i | _mm_and_si128 | (_m128i a, _m128i b) |
| pandn | packed and not, r := ~a & b | _m128i | _mm_andnot_si128 | (_m128i a, _m128i b) |
| por | packed or, r := a | b | _m128i | _mm_or_si128 | (_m128i a, _m128i b) |
| pxor | packed xor, r:= a ^ b | _m128i | _mm_xor_si128 | (_m128i a, _m128i b) |
| quad word shifts | return | parameter | ||
| psrlq | packed shift right logical quad | _m128i | _mm_srl_epi64 | (_m128i a, _m128i cnt) |
| immediate | _m128i | _mm_srli_epi64 | (_m128i a, int cnt) | |
| psllq | packed shift left logical quad | _m128i | _mm_sll_epi64 | (_m128i a, _m128i cnt) |
| immediate | _m128i | _mm_slli_epi64 | (_m128i a, int cnt) | |
| arithmetical | return | parameter | ||
| paddb | packed add bytes | _m128i | _mm_add_epi8 | (_m128i a, _m128i b) |
| psubb | packed subtract bytes | _m128i | _mm_sub_epi8 | (_m128i a, _m128i b) |
| psadbw | packed sum of absolute differences of bytes into a word |
_m128i | _mm_sad_epu8 | (_m128i a, _m128i b) |
| pmaxsw | packed maximum signed words | _m128i | _mm_max_epi16 | (_m128i a, _m128i b) |
| pmaxub | packed maximum unsigned bytes | _m128i | _mm_max_epu8 | (_m128i a, _m128i b) |
| pminsw | packed minimum signed words | _m128i | _mm_min_epi16 | (_m128i a, _m128i b) |
| pminub | packed minimum unsigned bytes | _m128i | _mm_min_epu8 | (_m128i a, _m128i b) |
| pcmpeqb | packed compare equal bytes | _m128i | _mm_cmpeq_epi8 | (_m128i a, _m128i b) |
| pmullw | packed multiply mow signed (unsigned) word | _m128i | _mm_mullo_epi16 | (_m128i a, _m128i b) |
| pmulhw | packed multiply high signed word | _m128i | _mm_mulhi_epi16 | (_m128i a, _m128i b) |
| pmulhuw | packed multiply high unsigned word | _m128i | _mm_mulhi_epu16 | (_m128i a, _m128i b) |
| pmaddwd | packed multiply words and add doublewords | _m128 | _mm_madd_epi16 | (_m128i a, _m128i b) |
| unpack, shuffle | return | parameter | ||
| punpcklbw | unpack and interleave low bytesgGhHfFeE:dDcCbBaA :=xxxxxxxx:GHFEDCBA #xxxxxxxx:ghfedcba
|
_m128i | _mm_unpacklo_epi8 | (_m128i A, _m128i a) |
| punpckhbw | unpack and interleave high bytesgGhHfFeE:dDcCbBaA :=GHFEDCBA:xxxxxxxx #ghfedcba:xxxxxxxx
|
_m128i | _mm_unpackhi_epi8 | (_m128i A, _m128i a) |
| punpcklwd | unpack and interleave low wordsdDcC:bBaA := xxxx:DCBA#xxxx:dcba
|
_m128i | _mm_unpacklo_epi16 | (_m128i A, _m128i a) |
| punpckhwd | unpack and interleave high wordsdDcC:bBaA := DCBA:xxxx#dcba:xxxx
|
_m128i | _mm_unpackhi_epi16 | (_m128i A, _m128i a) |
| punpckldq | unpack and interleave low doublewordsbB:aA := xx:BA # xx:ba
|
_m128i | _mm_unpacklo_epi32 | (_m128i A, _m128i a) |
| punpckhdq | unpack and interleave high doublewordsbB:aA := BA:xx # ba:xx
|
_m128i | _mm_unpackhi_epi32 | (_m128i A, _m128i a) |
| punpcklqdq | unpack and interleave low quadwordsa:A := x:A # x:a
|
_m128i | _mm_unpacklo_epi64 | (_m128i A, _m128i a) |
| punpckhqdq | unpack and interleave high quadwordsa:A := A:x # a:x
|
_m128i | _mm_unpackhi_epi64 | (_m128i A, _m128i a) |
| pshuflw | packed shuffle low words | _m128i | _mm_shufflelo_epi16 | (_m128i a, int imm) |
| pshufhw | packed shuffle high words | _m128i | _mm_shufflehi_epi16 | (_m128i a, int imm) |
| pshufd | packed shuffle doublewords | _m128i | _mm_shuffle_epi32 | (_m128i a, int imm) |
| load, store, moves | return | parameter | ||
| movdqa | move aligned double quadword xmm := *p |
_m128i | _mm_load_si128 | (_m128i const *p) |
| movdqu | move unaligned double quadword xmm := *p |
_m128i | _mm_loadu_si128 | (_m128i const*p) |
| movdqa | move aligned double quadword *p := xmm |
void | _mm_store_si128 | (_m128i *p, _m128i a) |
| movdqu | move unaligned double quadword *p := xmm |
void | _mm_storeu_si128 | (_m128i *p, _m128i a) |
| movq | move quadword, xmm := gp64 | _m128i | _mm_cvtsi64_si128 | (_int64 a) |
| movq | move quadword, gp64 := xmm | _int64 | _mm_cvtsi128_si64 | (_m128i a) |
| movd | move double word or quadword xmm := gp64 |
_m128i | _mm_cvtsi64x_si128 | (_int64 value) |
| movd | move doubleword, xmm := gp32 | _m128i | _mm_cvtsi32_si128 | (int a) |
| movd | move doubleword, gp32 := xmm | int | _mm_cvtsi128_si32 | (_m128i a) |
| pextrw | extract packed word, gp16 := xmm[i] | int | _mm_extract_epi16 | (_m128i a, int imm) |
| pinsrw | packed insert word, xmm[i] := gp16 | _m128i | _mm_insert_epi16 | (_m128i a, int b, int imm) |
| pmovmskb | packed move mask byte, gp32 := 16 sign-bits(xmm) |
int | _mm_movemask_epi | (_m128i a) |
| cache support | return | parameter | ||
| prefetch | void | _mm_prefetch | (char const* p , int i) | |
