FreeCalypso > hg > freecalypso-tools

view target-utils/libc/strlen.S @ 193:a57c93cf7f5c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
doc/RF-cal/CMU200-notes: added signal generator commands
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 23 Apr 2017 22:39:45 +0000
parents 3670e7768ab6
children
line wrap: on
line source

	.text
	.code	32
	.globl	strlen
strlen:
	mov	r1, r0
1:	ldrb	r2, [r0], #1
	cmn	r2, #0
	bne	1b
	sbc	r0, r0, r1
	bx	lr