BSD 2 development

[unix-history] / src / pi / wait.s

/ C library -- wait

/ pid = wait(&status);
/
/ pid == -1 if error
/ status indicates fate of process

.globl  _wait, cerror

_wait:
       mov     r5,-(sp)
       mov     sp,r5
       sys     wait
       bec     1f
       jmp     cerror
1:
       mov     r1,*4(r5)       / status return
       mov     (sp)+,r5
       rts     pc