/* * Simplistic strlen() implementation for SHmedia. * * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org> */ .section .text..SHmedia32,"ax" .globl strlen .type strlen,@function .balign 16 strlen: ptabs r18, tr4 /* * Note: We could easily deal with the NULL case here with a simple * sanity check, though it seems that the behavior we want is to fault * in the event that r2 == NULL, so we don't bother. */ /* beqi r2, 0, tr4 */ ! Sanity check movi -1, r0 pta/l loop, tr0 loop: ld.b r2, 0, r1 addi r2, 1, r2 addi r0, 1, r0 bnei/l r1, 0, tr0 or r0, r63, r2 blink tr4, r63 .size strlen,.-strlen