/ 
/ 
/                   FIRST PRINTING, FEBRUARY 1974
/ 
/ THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO 
/ CHANGE WITHOUT NOTICE AND SHOULD NOT BE CONSTRUED
/ AS A COMMITMENT BY DIGITAL EQUIPMENT CORPORATION.
/ DIGITAL EQUIPMENT CORPORATION ASSUMES NO RESPON-
/ SIBILITY FOR ANY ERRORS THAT MAY APPEAR IN THIS
/ DOCUMENT.
/ 
/ THE SOFTWARE DESCRIBED IN THIS DOCUMENT IS FUR-
/ NISHED TO THE PURCHASER UNDER A LICENSE FOR USE ON
/ A SINGLE COMPUTER SYSTEM AND CAN BE COPIED (WITH
/ INCLUSION OF DIGITAL'S COPYRIGHT NOTICE) ONLY FOR 
/ USE IN SUCH SYSTEM, EXCEPT AS MAY OTHERWISE BE PRO-
/ VIDED IN WRITING BY DIGITAL.
/ 
/ DIGITAL EQUIPMENT CORPORATION ASSUMES NO RESPONSIBILITY
/ FOR THE USE OR RELIABILITY OF ITS SOFTWARE ON EQUIP-
/ MENT THAT IS NOT SUPPLIED BY DIGITAL.
/ 
/ COPYRIGHT (C) 1974, BY DIGITAL EQUIPMENT CORPORATION
/ 
/ 
        .EJECT
/	EDIT #3
/
/ COPYRIGHT 1973, DIGITAL EQUIPMENT CORP., MAYNARD, MASS.
/
/			2/13/71	R. MCLEAN
/			1 MAR 73	T. MURRAY
/
/	MARK -- FORTRAN CALLABLE SUBROUTINE
/		TO ISSUE A MARK TIME REQUEST
/
/	CALLING SEQUENCE:
/	    CALL MARK (ITP,IEV)
/	      ITP=NAME OF A 2 ELEMENT INTEGER ARRAY
/ 	      EL1=DELTA TIME
/	      EL2=DELTA UNITS
/	      IEV=EVENT VARIABLE
/
	.GLOBL	MARK,.DAA
MARK	0
	JMS*	.DAA
	JMP	ARGEND	/SKIP OVER ARGUMENTS
DLTIM	0
EVNTY	0
ARGEND	LAC	EVNTY	/PUT EVENT VARIABLE ADDRESS IN
	DAC	REQEV	/REQUEST --
	LAC*	DLTIM	/PICK UP DELTA TIME
	DAC	REQDLT
	ISZ	DLTIM
	LAC*	DLTIM
	DAC	REQUNT
	CAL	MARKCP
	JMP*	MARK
MARKCP	13		/FUNCTAON
REQEV	0		/EVENT VARIABLE
REQDLT	0
REQUNT	0
	.END	MARK
	.EJECT