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# $OpenBSD: strcmp.S,v 1.4 1997/11/07 15:57:21 niklas Exp $
#include "DEFS.h"
/*
* NOTE: this version assumes unsigned chars in order to be "8 bit clean".
*/
LEAF(strcmp)
.set noreorder
1:
lbu t0, 0(a0) # get two bytes and compare them
lbu t1, 0(a1)
beq t0, zero, LessOrEq # end of first string?
nop
bne t0, t1, NotEq
nop
lbu t0, 1(a0) # unroll loop
lbu t1, 1(a1)
beq t0, zero, LessOrEq # end of first string?
addu a0, a0, 2
beq t0, t1, 1b
addu a1, a1, 2
NotEq:
j ra
subu v0, t0, t1
LessOrEq:
j ra
subu v0, zero, t1
END(strcmp)
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