page	60,132
name	_msgret
title	C	to Message Retriever

;/*
; *                      Microsoft Confidential
; *                      Copyright (C) Microsoft Corporation 1991
; *                      All Rights Reserved.
; */

;-------------------------------------------------------------------
;
;	MODULE: 	_msgret
;
;	PURPOSE:	Supplies an interface between C programs and
;			the DOS 3.3 message retriever
;
;	CALLING FORMAT:
;			sysloadmsg(&inregs,&outregs);
;			sysdispmsg(&inregs,&outregs);
;
;	DATE:		5-21-87
;
;-------------------------------------------------------------------

	INCLUDE SYSMSG.INC		;PERMIT SYSTEM MESSAGE HANDLER DEFINITION ;AN000;

	MSG_UTILNAME <RESTORE>		;IDENTIFY THE COMPONENT 		;AN000;

	.8087
_TEXT	SEGMENT BYTE PUBLIC 'CODE'
_TEXT	ENDS
_DATA	SEGMENT WORD PUBLIC 'DATA'
_DATA	ENDS
CONST	SEGMENT WORD PUBLIC 'CONST'
CONST	ENDS
_BSS	SEGMENT WORD PUBLIC 'BSS'
_BSS	ENDS
DGROUP	GROUP	CONST, _BSS, _DATA
	ASSUME	CS: _TEXT, DS: _TEXT, SS: DGROUP, ES: DGROUP


	public	_sysloadmsg
	public	_sysdispmsg

;-------------------------------------------------------------------
;-------------------------------------------------------------------

_DATA	segment
.XLIST
.XCREF
	MSG_SERVICES <MSGDATA>		;DATA AREA FOR THE MESSAGE HANDLER	     ;AN000;
.LIST
.CREF
_DATA	ends


_TEXT	segment

;-------------------------------------------------------------------
					;DEFAULT=CHECK DOS VERSION
					;DEFAULT=NEARmsg
					;DEFAULT=INPUTmsg
					;DEFAULT=NUMmsg
					;DEFAULT=NO TIMEmsg
					;DEFAULT=NO DATEmsg
.XLIST
.XCREF
	MSG_SERVICES <LOADmsg,INPUTmsg,DISPLAYmsg,CHARmsg,NUMmsg,DATEmsg,FARmsg> ;AN000;6
	MSG_SERVICES <RESTORE.CTL,RESTORE.CLA,RESTORE.CL1,RESTORE.CL2> ;AN000;6
.LIST
.CREF
;-------------------------------------------------------------------

_sysloadmsg proc near

	push	bp			; save user's base pointer
	mov	bp,sp			; set bp to current sp
	push	di			; save some registers
	push	si

;	copy C inregs into proper registers

	mov	di,[bp+4]		; fix di (arg 0)

;-------------------------------------------------------------------

	mov	ax,[di+0ah]		; load di
	push	ax			; the di value from inregs is now on stack

	mov	ax,[di+00]		; get inregs.x.ax
	mov	bx,[di+02]		; get inregs.x.bx
	mov	cx,[di+04]		; get inregs.x.cx
	mov	dx,[di+06]		; get inregs.x.dx
	mov	si,[di+08]		; get inregs.x.si
	pop	di			; get inregs.x.di from stack

	push	bp			; save base pointer

;-------------------------------------------------------------------
	call	sysloadmsg		; call the message retriever
;-------------------------------------------------------------------

	pop	bp			; restore base pointer
	push	di			; the di value from call is now on stack
	mov	di,[bp+6]		; fix di (arg 1)

	mov	[di+00],ax		; load outregs.x.ax
	mov	[di+02],bx		; load outregs.x.bx
	mov	[di+04],cx		; load outregs.x.cx
	mov	[di+06],dx		; load outregs.x.dx
	mov	[di+08],si		; load outregs.x.si

	lahf				; get flags into ax
	mov	al,ah			; move into low byte
	mov	[di+0ch],ax		; load outregs.x.cflag

	pop	ax			; get di from stack
	mov	[di+0ah],ax		; load outregs.x.di

;-------------------------------------------------------------------

	pop	si			; restore registers
	pop	di
	mov	sp,bp			; restore sp
	pop	bp			; restore user's bp
	ret

_sysloadmsg endp


;_sysgetmsg proc near
;
;	 push	 bp			 ; save user's base pointer
;	 mov	 bp,sp			 ; set bp to current sp
;	 push	 di			 ; save some registers
;	 push	 si
;
;;	 copy C inregs into proper registers
;
;	 mov	 di,[bp+4]		 ; fix di (arg 0)
;
;;-------------------------------------------------------------------
;
;	 mov	 ax,[di+0ah]		 ; load di
;	 push	 ax			 ; the di value from inregs is now on stack
;
;	 mov	 ax,[di+00]		 ; get inregs.x.ax
;	 mov	 bx,[di+02]		 ; get inregs.x.bx
;	 mov	 cx,[di+04]		 ; get inregs.x.cx
;	 mov	 dx,[di+06]		 ; get inregs.x.dx
;	 mov	 si,[di+08]		 ; get inregs.x.si
;	 pop	 di			 ; get inregs.x.di from stack
;
;	 push	 bp			 ; save base pointer
;
;;-------------------------------------------------------------------
;	 call	 sysgetmsg		 ; call the message retriever
;;-------------------------------------------------------------------
;
;	 pop	 bp			 ; restore base pointer
;	 push	 di			 ; the di value from call is now on stack
;	 mov	 di,[bp+6]		 ; fix di (arg 1)
;
;	 mov	 [di+00],ax		 ; load outregs.x.ax
;	 mov	 [di+02],bx		 ; load outregs.x.bx
;	 mov	 [di+04],cx		 ; load outregs.x.cx
;	 mov	 [di+06],dx		 ; load outregs.x.dx
;	 mov	 [di+08],si		 ; load outregs.x.si
;
;	 lahf				 ; get flags into ax
;	 mov	 al,ah			 ; move into low byte
;	 mov	 [di+0ch],ax		 ; load outregs.x.cflag
;
;	 pop	 ax			 ; get di from stack
;	 mov	 [di+0ah],ax		 ; load outregs.x.di
;
;;-------------------------------------------------------------------
;
;	 pop	 si			 ; restore registers
;	 pop	 di
;	 mov	 sp,bp			 ; restore sp
;	 pop	 bp			 ; restore user's bp
;	 ret
;
;_sysgetmsg endp

_sysdispmsg proc near

	push	bp			; save user's base pointer
	mov	bp,sp			; set bp to current sp
	push	di			; save some registers
	push	si

;	copy C inregs into proper registers

	mov	di,[bp+4]		; fix di (arg 0)

;-------------------------------------------------------------------

	mov	ax,[di+0ah]		; load di
	push	ax			; the di value from inregs is now on stack

	mov	ax,[di+00]		; get inregs.x.ax
	mov	bx,[di+02]		; get inregs.x.bx
	mov	cx,[di+04]		; get inregs.x.cx
	mov	dx,[di+06]		; get inregs.x.dx
	mov	si,[di+08]		; get inregs.x.si
	pop	di			; get inregs.x.di from stack

	push	bp			; save base pointer

;-------------------------------------------------------------------
	call	sysdispmsg		; call the message retriever
;-------------------------------------------------------------------

	pop	bp			; restore base pointer
	push	di			; the di value from call is now on stack
	mov	di,[bp+6]		; fix di (arg 1)

	mov	[di+00],ax		; load outregs.x.ax
	mov	[di+02],bx		; load outregs.x.bx
	mov	[di+04],cx		; load outregs.x.cx
	mov	[di+06],dx		; load outregs.x.dx
	mov	[di+08],si		; load outregs.x.si

	lahf				; get flags into ax
	mov	al,ah			; move into low byte
	mov	[di+0ch],ax		; load outregs.x.cflag

	pop	ax			; get di from stack
	mov	[di+0ah],ax		; load outregs.x.di

;-------------------------------------------------------------------

	pop	si			; restore registers
	pop	di
	mov	sp,bp			; restore sp
	pop	bp			; restore user's bp
	ret

_sysdispmsg endp

include msgdcl.inc

_TEXT	ends				; end code segment
	end


