/ C library -- execl / execl(file, arg1, arg2, ... , 0); / .globl _execl, cerror _execl: mov r5,-(sp) mov sp,r5 mov 4(r5),0f mov r5,r0 add $6,r0 mov r0,0f+2 sys 0; 9f jmp cerror .data 9: sys exec; 0:..; ..