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 %TITLE 'WFTOP - go to top of current buffer'
MODULE WFTOP (				! Go to top of current buffer
		IDENT = '1-002'			! File: WFTOP.BLI Edit: JBS1002
		) =
BEGIN
!COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1981, 1988.  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 THAT IS NOT SUPPLIED BY DIGITAL.
!
!
!++
! FACILITY:	EDT -- The DEC Standard Editor
!
! ABSTRACT:
!
!	Go to the top of the current buffer.
!
! ENVIRONMENT:	Runs at any access mode - AST reentrant
!
! AUTHOR: Bob Kushlis, CREATION DATE: October 16, 1978
!
! MODIFIED BY:
!
! 1-001	- Original.  DJS 23-Feb-1981.  This module was created by
!	extracting routine EDT$$TOP_BUF  from module EDTWF.
! 1-002	- Regularize headers.  JBS 19-Mar-1981
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$TOP_BUF : NOVALUE;

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$TOP_BUF  - go to top of current buffer'

GLOBAL ROUTINE EDT$$TOP_BUF 			! Go to top of current buffer
    : NOVALUE =

!++
! FUNCTIONAL DESCRIPTION:
!
!	Position to the top of the current buffer.
!
! FORMAL PARAMETERS:
!
!	NONE
!
! IMPLICIT INPUTS:
!
!	CUR_BUF
!	LNO_ZERO
!
! IMPLICIT OUTPUTS:
!
!	CUR_BUF
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS:
!
!	May read a bucket
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$RD_CURLN : NOVALUE;

    EXTERNAL
	CUR_BUF : REF TBCB_BLOCK,	! Current text buffer control block
	LNO_ZERO : LN_BLOCK;

    LOCAL
	FIRST;

    CUR_BUF [TBCB_CUR_BUKT] = FIRST = .CUR_BUF [TBCB_FIRST_BUKT];
    CUR_BUF [TBCB_LINE_ADDR] = WFB_FIXED_SIZE;
    CUR_BUF [TBCB_CHAR_POS] = 0;
    MOVELINE (LNO_ZERO, CUR_BUF [TBCB_CUR_LIN]);
    EDT$$RD_CURLN ();
    END;


END
ELUDOM