Multimedia Opcode 7 Size 2 2-Bit Opcode Extensions; Multimedia Opcode 7 Size 4 2-Bit Opcode Extensions - Intel ITANIUM ARCHITECTURE - SOFTWARE DEVELOPERS MANUAL VOLUME 3 REV 2.3 Manual

Table 4-18.
Opcode
Bits
40:37
7
Table 4-19.
Opcode
Bits
40:37
7
Volume 3: Instruction Formats

Multimedia Opcode 7 Size 2 2-bit Opcode Extensions

z z v x x
a b e 2a 2b
Bit Bit Bit Bits Bits
36 33 32 35:34 29:28
0
1
0
2
3
0
1
1
2
3
0 1 0
0
1
2
2
3
0
1
3
2
3

Multimedia Opcode 7 Size 4 2-bit Opcode Extensions

z z v x x
a b e 2a 2b
Bit Bit Bit Bits Bits
36 33 32 35:34 29:28
0
1
0
2
3
0
1
1
2
3
1 0 0
0
1
2
2
3
0
1
3
2
3
Bits 31:30
0 1
pshr2.u – var I5 pshl2 – var
pmpyshr2.u
pshr2 – var I5
pmpyshr2
pshr2.u – fixed I6
pshr2 – fixed I6
pack2.uss I2 unpack2.h
pack2.sss I2 unpack2.l
pmin2 I2 pmax2
pshl2 – fixed
Bits 31:30
0 1
pshr4.u – var I5 pshl4 – var
pshr4 – var I5
pshr4.u – fixed I6
pshr4 – fixed I6
unpack4.h
pack4.sss I2 unpack4.l
pshl4 – fixed
x
2c
2
I7
I1
I1
popcnt I9 clz
I2 mix2.r I2
pmpy2.r
I2 mix2.l I2
I2 pmpy2.l
I8
mux2 I4
x
2c
2
I7
mpy4
mpyshl4
I2 mix4.r I2
I2 mix4.l I2
I8
3
I9
I2
I2
3
I2
I2
3:311