xxlnand

VSX Vector Logical NAND

xxlnand XT, XA, XB

vD = ~(vA & vB)

Encoding

Binary Layout

60

0:5

XT

6:10

XA

11:15

XB

16:20

442

21:31

 

Format XX3-form

Opcode 0xF0000590

Extension VSX

Operands

• XT
  Target
• XA
  Src A
• XB
  Src B

Example

xxlnand vs1, vs2, vs3

Related

More in VSX

Reference

View in PowerISA v3.1C Specification ↗ OPF Power ISA v3.1C

Description

Performs a bitwise logical NAND operation on XA and XB, storing the result in XT. The operation is XT ← ~(XA & XB) on all 128 bits. No condition register or status field modifications occur.

Operation

XT ← ~(XA & XB)

Programming Note

The xxlnand instruction is commonly used for bitwise logical operations in VSX registers. Ensure that the source and target registers are properly aligned to avoid alignment faults. This instruction operates at user privilege level, but care should be taken to handle potential exceptions if unaligned access occurs.