/ C library -- chmod / error = chmod(string, mode); .globl _chmod, retrn, cerror _chmod: mov r5,-(sp) mov sp,r5 mov 4(r5),0f mov 6(r5),0f+2 sys 0; 9f bec 1f jmp cerror 1: clr r0 jmp retrn .data 9: sys chmod; 0:..; ..