Nios® II Processor Reference Guide

ID 683836
Date 10/22/2020
Public
Document Table of Contents

8.5.72. or

Instruction bitwise logical or
Operation

rC ←  rA | rB

Assembler Syntax

or rC, rA, rB

Example

or r6, r7, r8

Description

Calculates the bitwise logical OR of rA and rB and stores the result in rC.

Exceptions

None

Instruction Type

R

Instruction Fields

A = Register index of operand rA

B = Register index of operand rB

C = Register index of operand rC

Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
A B C 0x16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0x16 0 0x3a

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