Nios® II Processor Reference Guide

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

8.5.18. bret

Instruction breakpoint return
Operation

status ←  bstatus

PC ←  ba

Assembler Syntax

bret

Example

bret

Description

Copies the value of bstatus to the status register, then transfers execution to the address in ba.

Usage

bret is used by debuggers exclusively and should not appear in user programs, operating systems, or exception handlers.

Exceptions

Misaligned destination address

Supervisor-only instruction

Instruction Type

R

Instruction Fields

None

Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0x1e 0 0x1e 0x09
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0x09 0 0x3a

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