Technical Support

On-Line Manuals

8051 Instruction Set Manual

Architecture Overview

DA

JB

JC

JZ

RL

RR

SWAP

XRL

SWAP

The SWAP instruction exchanges the low-order and high-order nibbles within the accumulator. No flags are affected by this instruction.

See Also: XCH, XCHD

SWAP A

C

AC

F0

RS1

RS0

OV

P

Bytes

1

Cycles

1

Encoding

11000100

Operation

SWAP
A_3-0 swap A_7-4

Example

SWAP A

Cookie Settings | Terms of Use | Privacy | Accessibility | Trademarks | Contact Us | Feedback

Copyright © 2005-2019 Arm Limited (or its affiliates). All rights reserved.

Important information

This site uses cookies to store information on your computer. By continuing to use our site, you consent to our cookies.

Change Settings

Privacy Policy Update

Arm’s Privacy Policy has been updated. By continuing to use our site, you consent to Arm’s Privacy Policy. Please review our Privacy Policy to learn more about our collection, use and transfers
of your data.