Nios® II Processor Reference Guide

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

8.5.37. cmpltu

Instruction compare less than unsigned
Operation

if ((unsigned) rA < (unsigned) rB)

then rC ←  1

else rC ←  0

Assembler Syntax

cmpltu rC, rA, rB

Example

cmpltu r6, r7, r8

Description

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

Usage

cmpltu performs the unsigned < 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 0x30
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0x30 0 0x3a

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