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page 60,132
name _msgret
title C to Message Retriever
;-------------------------------------------------------------------
;
; MODULE: _msgret
;
; PURPOSE: Supplies an interface between C programs and
; the DOS 3.3 message retriever
;
; CALLING FORMAT:
; msgret(&inregs,&outregs);
;
; DATE: 5-21-87
;
;-------------------------------------------------------------------
INCLUDE SYSMSG.INC ;PERMIT SYSTEM MESSAGE HANDLER DEFINITION ;AC010;
MSG_UTILNAME <FDISK> ;IDENTIFY THE COMPONENT ;AC010;
;-------------------------------------------------------------------
;-------------------------------------------------------------------
_TEXT SEGMENT BYTE PUBLIC 'CODE' ;AC010;
_TEXT ENDS ;AC010;
_DATA SEGMENT WORD PUBLIC 'DATA' ;AC010;
_DATA ENDS ;AC010;
CONST SEGMENT WORD PUBLIC 'CONST' ;AC010;
CONST ENDS ;AC010;
_BSS SEGMENT WORD PUBLIC 'BSS' ;AC010;
_BSS ENDS ;AC010;
DGROUP GROUP CONST, _BSS, _DATA ;AC010;
ASSUME CS: DGROUP, DS: DGROUP, SS: DGROUP, ES: NOTHING ;AC010;
public data_sysloadmsg ;AC010;
public data_sysdispmsg ;AC010;
public data_sysgetmsg ;AC010;
_DATA SEGMENT ;AC010;
MSG_SERVICES <MSGDATA> ;AC010;
MSG_SERVICES <LOADmsg,FARmsg> ;AC010;
MSG_SERVICES <DISPLAYmsg,GETmsg,CHARmsg,NUMmsg> ;AC010;
MSG_SERVICES <FDISK.CLA,FDISK.CLB,FDISK.CL1,FDISK.CL2,FDISK.CTL> ;AC010; ;AC010;
data_sysloadmsg proc far
push bp ; save user's base pointer ;AC010;
mov bp,sp ; set bp to current sp ;AC010;
push di ; save some registers ;AC010;
push si ;AC010;
; copy C inregs into proper registers
mov di,[bp+4+4] ; fix di (arg 0) ;AC010;
;-------------------------------------------------------------------
mov ax,[di+0ah] ; load di ;AC010;
push ax ; the di value from inregs is now on stack ;AC010;
mov ax,[di+00] ; get inregs.x.ax ;AC010;
mov bx,[di+02] ; get inregs.x.bx ;AC010;
mov cx,[di+04] ; get inregs.x.cx ;AC010;
mov dx,[di+06] ; get inregs.x.dx ;AC010;
mov si,[di+08] ; get inregs.x.si ;AC010;
pop di ; get inregs.x.di from stack ;AC010;
push bp ; save base pointer ;AC010;
;-------------------------------------------------------------------
call sysloadmsg ; call the message retriever ;AC010;
;-------------------------------------------------------------------
pop bp ; restore base pointer ;AC010;
push di ; the di value from call is now on stack ;AC010;
mov di,[bp+6+4] ; fix di (arg 1) ;AC010;
mov [di+00],ax ; load outregs.x.ax ;AC010;
mov [di+02],bx ; load outregs.x.bx ;AC010;
mov [di+04],cx ; load outregs.x.cx ;AC010;
mov [di+06],dx ; load outregs.x.dx ;AC010;
mov [di+08],si ; load outregs.x.si ;AC010;
lahf ; get flags into ax ;AC010;
mov al,ah ; move into low byte ;AC010;
mov [di+0ch],ax ; load outregs.x.cflag ;AC010;
pop ax ; get di from stack ;AC010;
mov [di+0ah],ax ; load outregs.x.di ;AC010;
;-------------------------------------------------------------------
pop si ; restore registers ;AC010;
pop di ;AC010;
mov sp,bp ; restore sp ;AC010;
pop bp ; restore user's bp ;AC010;
ret
data_sysloadmsg endp ;AC010;
data_sysdispmsg proc far ;AC010;
push bp ; save user's base pointer ;AC010;
mov bp,sp ; set bp to current sp ;AC010;
push di ; save some registers ;AC010;
push si ;AC010;
; copy C inregs into proper registers
mov di,[bp+4+4] ; fix di (arg 0) ;AC010;
;-------------------------------------------------------------------
mov ax,[di+0ah] ; load di ;AC010;
push ax ; the di value from inregs is now on stack ;AC010;
mov ax,[di+00] ; get inregs.x.ax ;AC010;
mov bx,[di+02] ; get inregs.x.bx ;AC010;
mov cx,[di+04] ; get inregs.x.cx ;AC010;
mov dx,[di+06] ; get inregs.x.dx ;AC010;
mov si,[di+08] ; get inregs.x.si ;AC010;
pop di ; get inregs.x.di from stack ;AC010;
push bp ; save base pointer ;AC010;
;-------------------------------------------------------------------
call sysdispmsg ;AC010;
;-------------------------------------------------------------------
pop bp ; restore base pointer ;AC010;
push di ; the di value from call is now on stack ;AC010;
mov di,[bp+6+4] ; fix di (arg 1) ;AC010;
mov [di+00],ax ; load outregs.x.ax ;AC010;
mov [di+02],bx ; load outregs.x.bx ;AC010;
mov [di+04],cx ; load outregs.x.cx ;AC010;
mov [di+06],dx ; load outregs.x.dx ;AC010;
mov [di+08],si ; load outregs.x.si ;AC010;
lahf ; get flags into ax ;AC010;
mov al,ah ; move into low byte ;AC010;
mov [di+0ch],ax ; load outregs.x.cflag ;AC010;
pop ax ; get di from stack ;AC010;
mov [di+0ah],ax ; load outregs.x.di ;AC010;
;-------------------------------------------------------------------
pop si ; restore registers ;AC010;
pop di ;AC010;
mov sp,bp ; restore sp ;AC010;
pop bp ; restore user's bp ;AC010;
ret ;AC010;
data_sysdispmsg endp ;AC010;
data_sysgetmsg proc far ;AC010;
push bp ; save user's base pointer ;AC010;
mov bp,sp ; set bp to current sp ;AC010;
push di ; save some registers ;AC010;
push si ;AC010;
; copy C inregs into proper registers
mov di,[bp+4+4] ; fix di (arg 0) ;AC010;
;-------------------------------------------------------------------
mov ax,[di+0ah] ; load di ;AC010;
push ax ; the di value from inregs is now on stack ;AC010;
mov ax,[di+00] ; get inregs.x.ax ;AC010;
mov bx,[di+02] ; get inregs.x.bx ;AC010;
mov cx,[di+04] ; get inregs.x.cx ;AC010;
mov dx,[di+06] ; get inregs.x.dx ;AC010;
mov si,[di+08] ; get inregs.x.si ;AC010;
pop di ; get inregs.x.di from stack ;AC010;
push bp ; save base pointer ;AC010;
;-------------------------------------------------------------------
call sysgetmsg ; call the message retriever ;AC010;
;-------------------------------------------------------------------
pop bp ; restore base pointer ;AC010;
push di ; the di value from call is now on stack ;AC010;
mov di,[bp+6+4] ; fix di (arg 1) ;AC010;
push ax ; save ax ;AC010;
mov [di+00],es ; load segregs.es ;AC010;
mov [di+06],ds ; load outregs.ds ;AC010;
pop ax ; restore ax ;AC010;
pop di ; restore di ;AC010;
push di ; save it ;AC010;
mov di,[bp+8+4] ; fix di (arg 2) ;AC010;
mov [di+00],ax ; load outregs.x.ax ;AC010;
mov [di+02],bx ; load outregs.x.bx ;AC010;
mov [di+04],cx ; load outregs.x.cx ;AC010;
mov [di+06],dx ; load outregs.x.dx ;AC010;
mov [di+08],si ; load outregs.x.si ;AC010;
lahf ; get flags into ax ;AC010;
mov al,ah ; move into low byte ;AC010;
mov [di+0ch],ax ; load outregs.x.cflag ;AC010;
pop ax ; get di from stack ;AC010;
mov [di+0ah],ax ; load outregs.x.di ;AC010;
;-------------------------------------------------------------------
pop si ; restore registers ;AC010;
pop di ;AC010;
mov sp,bp ; restore sp ;AC010;
pop bp ; restore user's bp ;AC010;
ret ;AC010;
data_sysgetmsg endp ;AC010;
_DATA ends ; end code segment ;AC010;
_TEXT SEGMENT ;AC010;
assume cs:_TEXT ;AC010;
public _sysdispmsg ;AC010;
public _sysloadmsg ;AC010;
public _sysgetmsg ;AC010;
_sysdispmsg proc near ;AC010;
call data_sysdispmsg ;AC010;
ret ;AC010;
_sysdispmsg endp ;AC010;
_sysloadmsg proc near ;AC010;
call data_sysloadmsg ;AC010;
ret ;AC010;
_sysloadmsg endp ;AC010;
_sysgetmsg proc near ;AC010;
call data_sysgetmsg ;AC010;
ret ;AC010;
_sysgetmsg endp ;AC010;
_TEXT ENDS ;AC010;
end ;AC010;
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