Nios® II Processor Reference Guide

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

8.5.39. cmpne

Instruction compare not equal
Operation

if (rA != rB)

then rC ←  1

else rC ←  0

Assembler Syntax

cmpne rC, rA, rB

Example

cmpne r6, r7, r8

Description

If rA != rB, then stores 1 to rC; otherwise stores 0 to rC.

Usage

cmpne performs the != operation of the C programming language.

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 0x18
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0x18 0 0x3a

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