Intel 64 and IA-32 Architectures Software Developers Manual Volume 2B, Instruction Set Reference, N-Z

4-204 Vol. 2B
INSTRUCTION SET REFERENCE, N-Z
PUNPCKHDQ instruction with 64-bit operands:
DEST[31:0] ← DEST[63:32];
DEST[63:32] ← SRC[63:32];
PUNPCKHBW instruction with 128-bit operands:
DEST[7:0] ← DEST[71:64];
DEST[15:8] ← SRC[71:64];
DEST[23:16] ← DEST[79:72];
DEST[31:24] ← SRC[79:72];
DEST[39:32] ← DEST[87:80];
DEST[47:40] ← SRC[87:80];
DEST[55:48] ← DEST[95:88];
DEST[63:56] ← SRC[95:88];
DEST[71:64] ← DEST[103:96];
DEST[79:72] ← SRC[103:96];
DEST[87:80] ← DEST[111:104];
DEST[95:88] ← SRC[111:104];
DEST[103:96] ← DEST[119:112];
DEST[111:104] ← SRC[119:112];
DEST[119:112] ← DEST[127:120];
DEST[127:120] ← SRC[127:120];
PUNPCKHWD instruction with 128-bit operands:
DEST[15:0] ← DEST[79:64];
DEST[31:16] ← SRC[79:64];
DEST[47:32] ← DEST[95:80];
DEST[63:48] ← SRC[95:80];
DEST[79:64] ← DEST[111:96];
DEST[95:80] ← SRC[111:96];
DEST[111:96] ← DEST[127:112];
DEST[127:112] ← SRC[127:112];
PUNPCKHDQ instruction with 128-bit operands:
DEST[31:0] ← DEST[95:64];
DEST[63:32] ← SRC[95:64];
DEST[95:64] ← DEST[127:96];
DEST[127:96] ← SRC[127:96];
PUNPCKHQDQ instruction:
DEST[63:0] ← DEST[127:64];
DEST[127:64] ←
SRC[127:64];
Intel C/C++ Compiler Intrinsic Equivalents
PUNPCKHBW __m64 _mm_unpackhi_pi8(__m64 m1, __m64 m2)
PUNPCKHBW __m128i _mm_unpackhi_epi8(__m128i m1, __m128i m2)