2.9BSD - /usr/src/ucb/pascal/utilities/fpdata/wait.s

   1: .data
   2: / C library -- wait
   3: 
   4: / pid = wait(&status);
   5: /
   6: / pid == -1 if error
   7: / status indicates fate of process
   8: 
   9: .globl  _wait, cerror
  10: 
  11: _wait:
  12:         mov     r5,-(sp)
  13:         mov     sp,r5
  14:         sys     wait
  15:         bec     1f
  16:         jmp     cerror
  17: 1:
  18:         mov     r1,*4(r5)       / status return
  19:         mov     (sp)+,r5
  20:         rts     pc

Defined variables