/ SCCSID: @(#)wait2.s 3.0 4/22/86 / ////////////////////////////////////////////////////////////////////// / Copyright (c) Digital Equipment Corporation 1984, 1985, 1986. / / All Rights Reserved. / / Reference "/usr/src/COPYRIGHT" for applicable restrictions. / ////////////////////////////////////////////////////////////////////// / / Based on: wait2.s 2.2 (Berkeley) / C library -- wait2 / pid = wait2(0,flags); / or, / pid = wait2(&status,flags); / / pid == -1 if error / status indicates fate of process, if given / to be a syscall miser, we pass the second param / thru as bits in the ps .globl _wait2 .globl cerror _wait2: mov r5,-(sp) mov sp,r5 mov 6(r5),r0 sec|sev|sez|sen sys wait bec 1f jmp cerror 1: tst 4(r5) beq 1f mov r1,*4(r5) / status return 1: mov (sp)+,r5 rts pc