Nios® II Processor Reference Guide

ID 683836
Date 8/28/2023
Public
Document Table of Contents

8.5.71. nor

Instruction bitwise logical nor
Operation

rC ←  ~(rA | rB)

Assembler Syntax

nor rC, rA, rB

Example

nor r6, r7, r8

Description

Calculates the bitwise logical NOR 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

  31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
  A B C 0x06 0 0x3a