1: / error = chdir(dirname); 2: / char *dirname; 3: 4: .globl _chdir 5: .globl cerror 6: 7: _chdir: 8: mov r5,-(sp) 9: mov sp,r5 10: mov 4(r5),0f 11: sys 0; 9f 12: bec 1f 13: jmp cerror 14: 1: 15: clr r0 16: mov (sp)+,r5 17: rts pc 18: .data 19: 9: 20: sys chdir; 0:..