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Trailing-Edge - PDP-10 Archives - bb-r775d-bm_tops20_ks_upd_4 - sources/scrnorev.bli
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 %TITLE 'SCRNOREV - put the screen in normal mode'
MODULE SCRNOREV (				! Put the screen in normal mode
		IDENT = '1-002'			! File: SCRNOREV.BLI Edit: JBS1002
		) =
BEGIN
!
!			  COPYRIGHT (c) 1981, 1985 BY
!	      DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.
!		ALL RIGHTS RESERVED.
!
! THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND  COPIED
! ONLY  IN  ACCORDANCE  WITH  THE  TERMS  OF  SUCH  LICENSE AND 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.  NO TITLE TO AND OWNERSHIP OF  THE  SOFTWARE  IS  HEREBY
! TRANSFERRED.
!
! THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE  WITHOUT  NOTICE
! AND  SHOULD  NOT  BE  CONSTRUED  AS  A COMMITMENT BY DIGITAL EQUIPMENT
! CORPORATION.
!
! DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR  RELIABILITY  OF  ITS
! SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.
!

!++
! FACILITY:	EDT -- The DEC Standard Editor
!
! ABSTRACT:
!
!	This module ensures that the screen is not in reverse video.
!
! ENVIRONMENT:	Runs at any access mode - AST reentrant
!
! AUTHOR: Bob Kushlis, CREATION DATE: September 8, 1979
!
! MODIFIED BY:
!
! 1-001	- Original.  DJS 12-Feb-1981.  This module was created by
!	extracting the routine EDT$$SC_NONREVID  from module SCREEN.
! 1-002	- Regularize headers.  JBS 13-Mar-1981
!--

%SBTTL 'Declarations'
!
! TABLE OF CONTENTS:
!

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$SC_NONREVID : NOVALUE;

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!

BIND
    NORM_VIDEO = UPLIT (%STRING (%CHAR (ASC_K_ESC), '[m'));

LITERAL
    NORM_VIDEO_LEN = 3;

!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$SC_NONREVID  - put the screen in normal mode'

GLOBAL ROUTINE EDT$$SC_NONREVID 		! Put the screen in normal (no reverse video) mode
    : NOVALUE =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This routine puts the screen in normal mode (that is, not reverse video).
!
! FORMAL PARAMETERS:
!
!	NONE
!
! IMPLICIT INPUTS:
!
!	REVID
!
! IMPLICIT OUTPUTS:
!
!	REVID
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS
!
!	NONE
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$FMT_LIT;

    EXTERNAL
	REVID;				! is reverse video on?

    IF (.REVID NEQ 0)
    THEN
	BEGIN
	EDT$$FMT_LIT (CH$PTR (NORM_VIDEO), NORM_VIDEO_LEN);
	REVID = 0;
	END;

    END;


END
ELUDOM