B-35
INSTRUCTION FORMATS AND ENCODINGS
PMULHUW - Packed
Multiply High Unsigned
n/aOn/aIn/a
mmreg to mmreg
00001111:11100100:11 mmreg1 mmreg2
mem to mmreg
00001111:11100100 mod mmreg r/m
PSADBW - Packed Sum
of Absolute Differences
IOn/aYn/a
mmreg to mmreg
00001111:11110110:11 mmreg1 mmreg2
mem to mmreg
00001111:11110110 mod mmreg r/m
PSHUFW - Packed
Shuffle Word
n/aYn/aIn/a
mmreg to mmreg, imm800001111:01110000:11 mmreg1 mmreg2: imm8
mem to mmreg, imm800001111:01110000:11 mod mmreg r/m: imm8
Table B-21. Encoding of the Streaming SIMD Extensions
Cacheability Control Register Field
Instruction and Format
Encoding
BWDQDQ
MASKMOVQ - Byte Mask
Write
n/an/an/aYn/a
mmreg to mmreg
00001111:11110111:11 mmreg1 mmreg2
MOVNTPS - Move
Aligned Four Packed
Single-FP Non Temporal
n/an/an/an/aY
xmmreg to mem
00001111:00101011 mod xmmreg r/m
MOVNTQ - Move 64 Bits
Non Temporal
n/an/an/aYn/a
mmreg to mem
00001111:11100111 mod mmreg r/m
PREFETCHT0 - Prefetch
to all cache levels
00001111:00011000:01 mem
YYYYY
PREFETCHT1 - Prefetch
to all cache levels
00001111:00011000:10 mem
YYYYY
PREFETCHT2 - Prefetch
to L2 cache
00001111:00011000:11 mem
YYYYY
PREFETCHNTA -
Prefetch to L1 cache
00001111:00011000:00 mem
YYYYY
SFENCE - Store Fence00001111:10101110:11111000
YYYYY
Table B-20. Encoding of the SIMD-Integer Register Field
Instruction and Format
Encoding
BWDQDQ
