FreeCalypso > hg > freecalypso-tools
view target-utils/libc/strlen.S @ 258:00805e7c4c45
doc/High-speed-serial: update/rewrite for the new FTDI support
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 28 Sep 2017 07:53:50 +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