B-22
INSTRUCTION FORMATS AND ENCODINGS
PADDUS - Add unsigned with
saturation
YYN N
mmxreg2 to mmxreg1
0000 1111: 110111gg: 11 mmxreg1 mmxreg2
memory to mmxreg
0000 1111: 110111gg: mod mmxreg r/m
PAND - Bitwise And
NNN Y
mmxreg2 to mmxreg1
0000 1111:11011011: 11 mmxreg1 mmxreg2
memory to mmxreg
0000 1111:11011011: mod mmxreg r/m
PANDN - Bitwise AndNot
NNN Y
mmxreg2 to mmxreg1
0000 1111:11011111: 11 mmxreg1 mmxreg2
memory to mmxreg
0000 1111:11011111: mod mmxreg r/m
PCMPEQ - Packed compare
for equality
YYY N
mmxreg1 with mmxreg20000 1111:011101gg: 11 mmxreg1 mmxreg2
mmxreg with memory
0000 1111:011101gg: mod mmxreg r/m
PCMPGT - Packed compare
greater (signed)
YYY N
mmxreg1 with mmxreg20000 1111:011001gg: 11 mmxreg1 mmxreg2
mmxreg with memory
0000 1111:011001gg: mod mmxreg r/m
PMADD - Packed multiply add
n/aIOn/a
mmxreg2 to mmxreg1
0000 1111:11110101: 11 mmxreg1 mmxreg2
memory to mmxreg
0000 1111:11110101: mod mmxreg r/m
PMULH - Packed
multiplication
NYN N
mmxreg2 to mmxreg1
0000 1111:11100101: 11 mmxreg1 mmxreg2
memory to mmxreg
0000 1111:11100101: mod mmxreg r/m
PMULL - Packed
multiplication
NYN N
mmxreg2 to mmxreg1
0000 1111:11010101: 11 mmxreg1 mmxreg2
memory to mmxreg
0000 1111:11010101: mod mmxreg r/m
POR - Bitwise Or
NNN Y
mmxreg2 to mmxreg1
0000 1111:11101011: 11 mmxreg1 mmxreg2
memory to mmxreg
0000 1111:11101011: mod mmxreg r/m
Table B-14. MMX Instruction Formats and Encodings (Contd.)
Instruction and Format
Encoding
BWDQ
