#include "sys.h" .define _ptrace .extern _errno _ptrace: mov 2(sp),0f+6 mov 4(sp),0f+2 mov 6(sp),0f+4 mov 010(sp),r0 clr _errno sys indir; .data2 0f bcc 1f mov r0,_errno mov $-1,r0 1: rts pc .sect .data 0: sys ptrace .data2 0, 0, 0