.file "strcmp.S" .section .text .global _strcmp .type _strcmp,@function _strcmp: mov #-1, r3 ; Strictly speaking this is incorrect, but I doubt if anyone will ever know. scmpu ; Perform the string comparison bnc 1f ; If Carry is not set skip over scne.L r1 ; Set result based on Z flag rts ; 1: ; mov #-1,r1 ; Carry not set, result should be negative rts ;