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The table below lists all documented extended mnemonics for instructions:
| Opcode | Mnemonic | Description | Table Type |
|---|---|---|---|
| E794 | VPK | Vector PacK | Extended Mnemonics |
| E795 | VPKLS | Vector PacK Logical Saturate | Extended Mnemonics |
| E797 | VPKS | Vector PacK Saturate | Extended Mnemonics |
| E79E | VFNMS | Vector Floating point Negative Multiply and Subtract | Extended Mnemonics |
| E79F | VFNMA | Vector Floating point Negative Multiply and Add | Extended Mnemonics |
Each extended mnemonic links to a text section with some additional info on the pertinent pseudo opcode.
Remark:
Please note that the creation of descriptions for all individual
instructions
is an ongoing process. As yet no such descriptions have been created
for
the opcodes on this page.
All instructions in this table are six bytes in length. The first byte always has a value of X'E7', the second byte of the opcode is located in the sixth byte of the instruction and always has a value in the range X'90' through X'9F'.
| E794 | VPK |
|---|---|
| Size=0 - Byte | |
| Size=1 - Halfword | VPKH |
| Size=2 - Fullword | VPKF |
| Size=3 - Doubleword | VPKG |
| Size=4 - Quadword | |
| Size=6 - Word (Left Aligned) |
| E795 | CS=0 - Keep CC | CS=1 - Set CC |
|---|---|---|
| Size=0 - Byte | ||
| Size=1 - Halfword | VPKLSH | VPKLSHS |
| Size=2 - Fullword | VPKLSF | VPKLSFS |
| Size=3 - Doubleword | VPKLSG | VPKLSGS |
| Size=4 - Quadword | ||
| Size=6 - Word (Left Aligned) |
| E797 | CS=0 - Keep CC | CS=1 - Set CC |
|---|---|---|
| Size=0 - Byte | ||
| Size=1 - Halfword | VPKSH | VPKSHS |
| Size=2 - Fullword | VPKSF | VPKSFS |
| Size=3 - Doubleword | VPKSG | VPKSGS |
| Size=4 - Quadword | ||
| Size=6 - Word (Left Aligned) |
| E79E | S=0 - Vector | S=1 - Single |
|---|---|---|
| FPF=2 - Short | VFNMSSB | WFNMSSB |
| FPF=3 - Long | VFNMSDB | WFNMSDB |
| FPF=4 - Extended | WFNMSXB |
| E79F | S=0 - Vector | S=1 - Single |
|---|---|---|
| FPF=2 - Short | VFNMASB | WFNMASB |
| FPF=3 - Long | VFNMADB | WFNMADB |
| FPF=4 - Extended | WFNMAXB |
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