Assembler Language Reference

xoris or xoriu (XOR Immediate Shift) Instruction

Purpose

XORs the upper 16 bits of a general-purpose register with a 16-bit unsigned integer and places the result in another general-purpose register.

Syntax

Bits	Value
0-5	27
6-10	RS
11-15	RA
16-31	UI

PowerPC
xoris	RA, RS, UI

POWER family
xoriu	RA, RS, UI

Description

The xoris and xoriu instructions XOR the contents of general-purpose register (GPR) RS with the concatenation of a 16-bit unsigned integer UI and 0x'0000' and store the result in GPR RA.

The xoris and xoriu instructions have only one syntax form and do not affect the Fixed-Point Exception Register or Condition Register Field 0.

Parameters

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.

Example

The following code XORs GPR 4 with 0x0079 0000 and stores the result in GPR 6:

# Assume GPR 4 holds 0x9000 3000.
xoris 6,4,0x0079
# GPR 6 now holds 0x9079 3000.

Related Information

Fixed-Point Processor .

Fixed-Point Logical Instructions .