/ 
/ 
/                   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 #1
/
/COPYRIGHT, 1972, DIGITAL EQUIPMENT CORP., MAYNARD, MASS.
/
/
/	BSPREC  FORTRAN CALLABLE ROUTINE TO SPACE
/		MAGTAPE BACKWARDS N RECORDS
/
/	CALLING SEQUENCE -- CALL BSPREC (LUN,NREC [,IEV])
/
/		LUN= LOGICAL UNIT NUMBER
/		NREC=NUMBER OF RECORDS TO BE SPACED
/		IEV= EVENT VARIABLE
/
	.GLOBL	BSPREC,.DA
BSPREC	0
	JMS*	.DA		/PICK UP THE ARGUMENTS
	JMP	IEV+1
LUN	0
NFILS	0
IEV	0
	LAC	IEV	/PICK UP THE EVENT VARIABLE ADDRESS
	DZM	IEV
	DAC	EV	/SAVE THE EVENT VARABLE ADDRESS
	LAC*	NFILS	/PICK UP THE FILE COUNT
	DAC	FILS
	LAC*	LUN	/PICK UP THE LUN
	DAC	ILUN
	CAL	BSPMF
	JMP*	BSPREC
/
BSPMF	4200
EV	0
ILUN	0
FILS	0
	.END