;*************************************************************************
;
;   OpenOffice.org - a multi-platform office productivity suite
;
;   $RCSfile: wnt.asm,v $
;
;   $Revision: 1.3 $
;
;   last change: $Author: rt $ $Date: 2005-09-07 21:43:19 $
;
;   The Contents of this file are made available subject to
;   the terms of GNU Lesser General Public License Version 2.1.
;
;
;     GNU Lesser General Public License Version 2.1
;     =============================================
;     Copyright 2005 by Sun Microsystems, Inc.
;     901 San Antonio Road, Palo Alto, CA 94303, USA
;
;     This library is free software; you can redistribute it and/or
;     modify it under the terms of the GNU Lesser General Public
;     License version 2.1, as published by the Free Software Foundation.
;
;     This library is distributed in the hope that it will be useful,
;     but WITHOUT ANY WARRANTY; without even the implied warranty of
;     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;     Lesser General Public License for more details.
;
;     You should have received a copy of the GNU Lesser General Public
;     License along with this library; if not, write to the Free Software
;     Foundation, Inc., 59 Temple Place, Suite 330, Boston,
;     MA  02111-1307  USA
;
;*************************************************************************

;    Anmerkungen
;        Direktaufruf von C- und PASCAL-Routinen, Windows und OS/2
;
; Inhalt:
; type = CallXXX (far *pProc, char *pStack, short nStack)
;
; Kopie des Basic-Stacks (nStack Bytes) auf den C-Stack
; und Aufruf der Prozedur.

		.386

_TEXT		SEGMENT	DWORD PUBLIC 'CODE' USE32

		ASSUME 	CS:_TEXT

		PUBLIC	_CallINT@12
		PUBLIC	_CallLNG@12
		PUBLIC	_CallDBL@12
		PUBLIC	_CallSTR@12
		PUBLIC	_CallFIX@12

_CallINT@12	LABEL	byte
_CallLNG@12	LABEL	byte
_CallDBL@12	LABEL	byte
_CallSTR@12	LABEL	byte

_CallFIX@12:	PUSH	EBP
		MOV	EBP,ESP
		PUSH	ESI
		PUSH	EDI

		PUSH	ECX
		PUSH	EDX

		MOV	DX,DS
		MOVZX	EAX,WORD PTR [EBP+16] ; EAX == nStack
		SUB	ESP,EAX       ; Stack um nStack Bytes vergroessern
		MOV	EDI,ESP
		MOV	AX,SS
		MOV	ES,AX	      ; ES:EDI = Startadresse des fuer
				      ; Parameter reservierten Stackbereichs
		MOV	ESI,[EBP+12]  ; DS:ESI == pStack

		MOVZX	ECX,WORD PTR [EBP+16] ; ECX == nStack
		SHR	ECX,1
		CLD
		JCXZ	$1
	REP	MOVSW		      ; Stack uebernehmen
$1:		MOV	DS,DX
		CALL	DWORD PTR [EBP+8]	; Aufruf der Prozedur
		; CLI ; unter NT nicht erlaubt (privileged instruction)
		MOV	ESP,EBP
		SUB	ESP,16	      ; wegen gepushter Register
				      ; (ESI, EDI)
		; STI
		POP	EDX
		POP	ECX
		POP	EDI
		POP	ESI
		POP	EBP
		RET	12

_TEXT		ENDS

		END