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|
page 60,132 ;AN000;
name _msgret ;AN000;
title C to Message Retriever ;AN000;
;------------------------------------------------------------------- ;AN000;
; ;AN000;
; MODULE: _msgret ;AN000;
; ;AN000;
; PURPOSE: Supplies an interface between C programs and ;AN000;
; the DOS message retriever ;AN000;
; ;AN000;
; CALLING FORMAT: ;AN000;
; sysloadmsg(&inregs,&outregs); ;AN000;
; sysgetmsg(&inregs,&outregs); ;AN000;
; sysdispmsg(&inregs,&outregs); ;AN000;
; ;AN000;
; ;AN000;
; DATE: 5-21-87 ;AN000;
; Modified: 6/18/87 ;AN000;
; ;AN000;
;------------------------------------------------------------------- ;AN000;
; ;AN000;
INCLUDE SYSMSG.INC ;PERMIT SYSTEM MESSAGE HANDLER DEFINITION ;AN000;
; ;AN000;
MSG_UTILNAME <ATTRIB> ;IDENTIFY THE COMPONENT ;AN000;
; ;AN000;
.8087 ;AN000;
_TEXT SEGMENT BYTE PUBLIC 'CODE' ;AN000;
_TEXT ENDS ;AN000;
_DATA SEGMENT WORD PUBLIC 'DATA' ;AN000;
_DATA ENDS ;AN000;
CONST SEGMENT WORD PUBLIC 'CONST' ;AN000;
CONST ENDS ;AN000;
_BSS SEGMENT WORD PUBLIC 'BSS' ;AN000;
_BSS ENDS ;AN000;
DGROUP GROUP CONST, _BSS, _DATA ;AN000;
ASSUME CS: _TEXT, DS: _TEXT, SS: DGROUP, ES: DGROUP ;AN000;
; ;AN000;
public _sysloadmsg ;AN000;
public _sysgetmsg ;AN000;
public _sysdispmsg ;AN000;
; ;AN000;
;------------------------------------------------------------------- ;AN000;
;------------------------------------------------------------------- ;AN000;
; ;AN000;
_DATA segment ;AN000;
.XLIST ;AN000;
.XCREF ;AN000;
; MSG_SERVICES <MSGDATA> ;DATA AREA FOR THE MESSAGE HANDLER ;AN000;
MSG_SERVICES <MSGDATA> ;DATA AREA FOR THE MESSAGE HANDLER ;AN000;
.LIST ;AN000;
.CREF ;AN000;
_DATA ends ;AN000;
; ;AN000;
; ;AN000;
_TEXT segment ;AN000;
; ;AN000;
;------------------------------------------------------------------- ;AN000;
; ;AN000;
;DEFAULT=CHECK DOS VERSION ;AN000;
;DEFAULT=NEARmsg ;AN000;
;DEFAULT=INPUTmsg ;AN000;
;DEFAULT=NUMmsg ;AN000;
;DEFAULT=NO TIMEmsg ;AN000;
;DEFAULT=NO DATEmsg ;AN000;
; MSG_SERVICES <LOADmsg,GETmsg,DISPLAYmsg,CHARmsg,NUMmsg,INPUTmsg,FARmsg,TIMEmsg,DATEmsg> ;AN000;
; MSG_SERVICES <ATTRIB.CLA,ATTRIB.CLB,ATTRIB.CL1,ATTRIB.CL2> ;MSG TEXT ;AN000;
.XLIST ;AN000;
.XCREF ;AN000;
MSG_SERVICES <LOADmsg,GETmsg,DISPLAYmsg,CHARmsg,NUMmsg,INPUTmsg,FARmsg,TIMEmsg,DATEmsg> ;AN000;
MSG_SERVICES <ATTRIB.CLA,ATTRIB.CLB,ATTRIB.CL1,ATTRIB.CL2> ;MSG TEXT ;AN000;
.LIST ;AN000;
.CREF ;AN000;
; ;AN000;
;------------------------------------------------------------------- ;AN000;
_sysloadmsg proc near ;AN000;
push bp ; save user's base pointer ;AN000;
mov bp,sp ; set bp to current sp ;AN000;
push di ; save some registers ;AN000;
push si ;AN000;
; ;AN000;
; copy C inregs into proper registers ;AN000;
; ;AN000;
mov di,[bp+4] ; fix di (arg 0) ;AN000;
; ;AN000;
mov ax,[di+0ah] ; load di ;AN000;
push ax ; the di value from inregs is now on stack ;AN000;
; ;AN000;
mov ax,[di+00] ; get inregs.x.ax ;AN000;
mov bx,[di+02] ; get inregs.x.bx ;AN000;
mov cx,[di+04] ; get inregs.x.cx ;AN000;
mov dx,[di+06] ; get inregs.x.dx ;AN000;
mov si,[di+08] ; get inregs.x.si ;AN000;
pop di ; get inregs.x.di from stack ;AN000;
; ;AN000;
push bp ; save base pointer ;AN000;
; ;AN000;
;------------------------------------------------------------------- ;AN000;
call sysloadmsg ; call the message retriever ;AN000;
;------------------------------------------------------------------- ;AN000;
; ;AN000;
pop bp ; restore base pointer ;AN000;
push di ; the di value from call is now on stack ;AN000;
mov di,[bp+6] ; fix di (arg 1) ;AN000;
; ;AN000;
mov [di+00],ax ; load outregs.x.ax ;AN000;
mov [di+02],bx ; load outregs.x.bx ;AN000;
mov [di+04],cx ; load outregs.x.cx ;AN000;
mov [di+06],dx ; load outregs.x.dx ;AN000;
mov [di+08],si ; load outregs.x.si ;AN000;
; ;AN000;
lahf ; get flags into ax ;AN000;
mov al,ah ; move into low byte ;AN000;
mov [di+0ch],ax ; load outregs.x.cflag ;AN000;
; ;AN000;
pop ax ; get di from stack ;AN000;
mov [di+0ah],ax ; load outregs.x.di ;AN000;
; ;AN000;
pop si ; restore registers ;AN000;
pop di ;AN000;
mov sp,bp ; restore sp ;AN000;
pop bp ; restore user's bp ;AN000;
ret ;AN000;
_sysloadmsg endp ;AN000;
; ;AN000;
; ;AN000;
_sysgetmsg proc near ;AN000;
push bp ; save user's base pointer ;AN000;
mov bp,sp ; set bp to current sp ;AN000;
push di ; save some registers ;AN000;
push si ;AN000;
; ;AN000;
; copy C inregs into proper registers ;AN000;
; ;AN000;
mov di,[bp+4] ; fix di (arg 0) ;AN000;
; ;AN000;
mov ax,[di+0ah] ; load di ;AN000;
push ax ; the di value from inregs is now on stack ;AN000;
; ;AN000;
mov ax,[di+00] ; get inregs.x.ax ;AN000;
mov bx,[di+02] ; get inregs.x.bx ;AN000;
mov cx,[di+04] ; get inregs.x.cx ;AN000;
mov dx,[di+06] ; get inregs.x.dx ;AN000;
mov si,[di+08] ; get inregs.x.si ;AN000;
pop di ; get inregs.x.di from stack ;AN000;
; ;AN000;
push bp ; save base pointer ;AN000;
; ;AN000;
;------------------------------------------------------------------- ;AN000;
call sysgetmsg ; call the message retriever ;AN000;
;------------------------------------------------------------------- ;AN000;
; ;AN000;
pop bp ; restore base pointer ;AN000;
push di ; the di value from call is now on stack ;AN000;
mov di,[bp+6] ; fix di (arg 1) ;AN000;
; ;AN000;
mov [di+00],ax ; load outregs.x.ax ;AN000;
mov [di+02],bx ; load outregs.x.bx ;AN000;
mov [di+04],cx ; load outregs.x.cx ;AN000;
mov [di+06],dx ; load outregs.x.dx ;AN000;
mov [di+08],si ; load outregs.x.si ;AN000;
; ;AN000;
lahf ; get flags into ax ;AN000;
mov al,ah ; move into low byte ;AN000;
mov [di+0ch],ax ; load outregs.x.cflag ;AN000;
; ;AN000;
pop ax ; get di from stack ;AN000;
mov [di+0ah],ax ; load outregs.x.di ;AN000;
; ;AN000;
pop si ; restore registers ;AN000;
pop di ;AN000;
mov sp,bp ; restore sp ;AN000;
pop bp ; restore user's bp ;AN000;
ret ;AN000;
_sysgetmsg endp ;AN000;
; ;AN000;
; ;AN000;
_sysdispmsg proc near ;AN000;
push bp ; save user's base pointer ;AN000;
mov bp,sp ; set bp to current sp ;AN000;
push di ; save some registers ;AN000;
push si ;AN000;
; ;AN000;
; copy C inregs into proper registers ;AN000;
; ;AN000;
mov di,[bp+4] ; fix di (arg 0) ;AN000;
; ;AN000;
mov ax,[di+0ah] ; load di ;AN000;
push ax ; the di value from inregs is now on stack ;AN000;
; ;AN000;
mov ax,[di+00] ; get inregs.x.ax ;AN000;
mov bx,[di+02] ; get inregs.x.bx ;AN000;
mov cx,[di+04] ; get inregs.x.cx ;AN000;
mov dx,[di+06] ; get inregs.x.dx ;AN000;
mov si,[di+08] ; get inregs.x.si ;AN000;
pop di ; get inregs.x.di from stack ;AN000;
; ;AN000;
push bp ; save base pointer ;AN000;
; ;AN000;
;------------------------------------------------------------------- ;AN000;
call sysdispmsg ; call the message retriever ;AN000;
;------------------------------------------------------------------- ;AN000;
; ;AN000;
pop bp ; restore base pointer ;AN000;
push di ; the di value from call is now on stack ;AN000;
mov di,[bp+6] ; fix di (arg 1) ;AN000;
; ;AN000;
mov [di+00],ax ; load outregs.x.ax ;AN000;
mov [di+02],bx ; load outregs.x.bx ;AN000;
mov [di+04],cx ; load outregs.x.cx ;AN000;
mov [di+06],dx ; load outregs.x.dx ;AN000;
mov [di+08],si ; load outregs.x.si ;AN000;
; ;AN000;
lahf ; get flags into ax ;AN000;
mov al,ah ; move into low byte ;AN000;
mov [di+0ch],ax ; load outregs.x.cflag ;AN000;
; ;AN000;
pop ax ; get di from stack ;AN000;
mov [di+0ah],ax ; load outregs.x.di ;AN000;
; ;AN000;
pop si ; restore registers ;AN000;
pop di ;AN000;
mov sp,bp ; restore sp ;AN000;
pop bp ; restore user's bp ;AN000;
ret ;AN000;
_sysdispmsg endp ;AN000;
; ;AN000;
; ;AN000;
_TEXT ends ; end code segment ;AN000;
include msgdcl.inc
end ;AN000;
|
