📄 wait.s
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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 cerror1: tst (sp)+ beq 2f mov r1,*4(r5) / status return2: mov (sp)+,r5 rts pc
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