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- / C library -- wait
-
- / pid = wait();
- / or,
- / pid = wait(&status);
- /
- / pid == -1 if error
- / status indicates fate of process, if given
-
- .globl _wait, _nargs, cerror
-
- _wait:
- mov r5,-(sp)
- mov sp,r5
- jsr pc,_nargs
- mov r0,-(sp)
- sys wait
- bec 1f
- tst (sp)+
- jmp cerror
- 1:
- tst (sp)+
- beq 2f
- mov r1,*4(r5) / status return
- 2:
- mov (sp)+,r5
- rts pc
-