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diff target-utils/libc/strlen.S @ 95:3670e7768ab6

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target-utils/libc: strlen optimized assembly implementation added
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 31 Oct 2016 22:14:38 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/libc/strlen.S	Mon Oct 31 22:14:38 2016 +0000
@@ -0,0 +1,10 @@
+	.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