1: / C library -- execl 2: 3: / execl(file, arg1, arg2, ... , 0); 4: / 5: / environment automatically passed 6: 7: .globl _execl 8: .globl cerror, _environ 9: .exece = 59. 10: 11: _execl: 12: mov r5,-(sp) 13: mov sp,r5 14: mov 4(r5),0f 15: mov r5,r0 16: add $6,r0 17: mov r0,0f+2 18: mov _environ,0f+4 19: sys 0; 9f 20: jmp cerror 21: .data 22: 9: 23: sys .exece; 0:..; ..; ..