;
;	AUTHOR:
;		R. STODOLA
;		THE INSTITUTE FOR CANCER RESEARCH
;		7701 BURHOLME AVE.
;		PHILADELPHIA, PA.  19111
;
;      *******************************************************
;      *                                                     *
;      *      THIS SOFTWARE WAS DEVELOPED WITH SUPPORT       *
;      *      FROM THE NATIONAL INSTITUTES OF HEALTH:        *
;      *         NIH CA06927                                 *
;      *         NIH CA22780                                 *
;      *                                                     *
;      *      DIRECT INQUIRIES TO:                           *
;      *            COMPUTER CENTER                          *
;      *            THE INSTITUTE FOR CANCER RESEARCH        *
;      *            7701 BURHOLME AVENUE                     *
;      *            PHILADELPHIA, PENNSYLVANIA   19111       *
;      *                                                     *
;      *      NO WARRANTY OR REPRESENTATION, EXPRESS OR      *
;      *      IMPLIED, IS MADE WITH RESPECT TO THE           *
;      *      CORRECTNESS, COMPLETENESS, OR USEFULNESS       *
;      *      OF THIS SOFTWARE, NOR THAT USE OF THIS         *
;      *      SOFTWARE MIGHT NOT INFRINGE PRIVATELY          *
;      *      OWNED RIGHTS.                                  *
;      *                                                     *
;      *      NO LIABILITY IS ASSUMED WITH RESPECT TO        *
;      *      THE USE OF, OR FOR DAMAGES RESULTING FROM      *
;      *      THE USE OF THIS SOFTWARE                       *
;      *                                                     *
;      *******************************************************
;      *                                                     *
;      *      THIS SOFTWARE WAS DESIGNED FOR USE ON A        *
;      *      PDP-11/70 OPERATING UNDER IAS V2.0 USING       *
;      *      THE IAS PDP-11 MACRO ASSEMBLER.                *
;      *                                                     *
;      *******************************************************
	.TITLE	WEVNST	-- WAIT FOR SUBTASK EVENT
	.IDENT	/ICR001/
	.MCALL	ERBLDF
;
ERM=7
ERB:	ERBLDF	WEVNST,ERM,2,FATAL
;
WEVNST::
	MOV	#ERB,R4			;SET ERROR BLOCK.
	CALL	.CERR.			;INITIALIZE.
	CKEV$T	,<#.TDB1.,#.TDB2.,#.TDB3.,#.TDB4.>,WAIT,#ERB+E..ESB,.STER.
	BCS	10$
	MOV	R0,R1
	BLE	20$
	CLR	R0
	SUB	#.TDB1.,R1
	DIV	#.TDB2.-.TDB1.,R0
	INC	R0
	BR	20$
10$:	MOV	#-1,R0
20$:	MOV	R0,@2(R5)
	RETURN
	.END