[ Previous | Next | Contents | Home | Search ]
AIX Version 4.3 Assembler Language Reference

andi. or andil. (AND Immediate) Instruction


Logically ANDs the contents of a general-purpose register with an immediate value.


andi. RA,RS,UI
andil. RA,RS,UI


The andi. and andil. instructions logically AND the contents of general-purpose register (GPR) RS with the concatenation of x'0000' and a 16-bit unsigned integer, UI, and place the result in GPR RA.

The andi. and andil. instructions have one syntax form and never affect the Fixed-Point Exception Register. The andi. and andil. instructions copies the Summary Overflow (SO) bit from the Fixed-Point Exception Register into Condition Register Field 0 and sets one of the Less Than (LT), Greater Than (GT), or Equal To (EQ) bits of Condition Register Field 0.


RA Specifies target general-purpose register where result of operation is stored.
RS Specifies source general-purpose register for operation.
UI Specifies 16-bit unsigned integer for operation.


The following code logically ANDs the contents of GPR 4 with 0x0000 5730, stores the result in GPR 6, and sets Condition Register Field 0 to reflect the result of the operation:

# Assume GPR 4 contains 0x7B41 92C0.
andi. 6,4,0x5730
# GPR 6 now contains 0x0000 1200.
# CRF 0 now contains 0x4.

Related Information

Fixed-Point Processor.

Fixed-Point Logical Instructions.

[ Previous | Next | Contents | Home | Search ]