.MCALL	.MODULE
.MODULE	ISLEEP,VERSION=03,COMMENT=<ISLEEP/SYSLIB>,IDENT=NO,LIB=YES

; Copyright (c) 1998 by Mentec, Inc., Nashua, NH.
; All rights reserved
;
; This software is furnished under a license for use only on a
; single computer system and  may  be  copied  only  with  the
; inclusion of the above copyright notice.  This software,  or
; any other copies thereof, may not be provided  or  otherwise
; made available to any other person except for  use  on  such
; system and to one who agrees to these license  terms.  Title
; to  and  ownership of the software shall at all times remain
; in Mentec, Inc.
;
; The information in this document is subject to change without
; notice and should not be construed as a commitment by Digital
; Equipment Corporation, or Mentec, Inc.
;
; Digital and Mentec  assume  no  responsibility for the use or
; reliability of its software on equipment which is not supplied
; by Digital  or Mentec,  and listed  in the  Software  Product
; Description.
.SBTTL	ISLEEP - FORTRAN CALLABLE SUBROUTINE
;
;	CALL ISLEEP( IHRS, IMIN, ISEC, ITCK )
;
;	SUSPENDS EXECUTION OF THE MAINLINE CODE OF THIS JOB
;	FOR THE AMOUNT OF TIME SPECIFIED BY THE ARGUMENTS.
;
; ERRORS ARE POSSIBLE.
;	0 NORMAL
;	1 NO QUEUE ELEMENT
;
; MAS

.PSECT	SYS$I

	.GLOBL	$SYSLB		; Include system library work area.
	.GLOBL	$TIME$

SLEEP::
ISLEEP::TST	(R5)+		;SKIP ARGUMENT COUNT
	JSR	PC,$TIME$	;CONVERT ARGS -> (R0,R1) TIME
	MOV	R1,-(SP)	;STACK TIME
	MOV	R0,-(SP)
	MOV	SP,R0
	MOV	R0,-(SP)	;STAY MACHINE-INDEPENDANT
	MOV	#24*400,-(SP)	;SET .TWAIT CODE
	MOV	SP,R0		;R0 -> ARG BLOCK
	EMT	375		;.TWAIT
	BIC	R0,R0		;R0=0
	ADC	R0		;C=1 IF ERROR
	ADD	#10,SP		;POP ARG BLOCK
	RTS	PC

.END