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[MS-DOS.git] / v4.0 / src / CMD / FDISK / _MSGRET.ASM
1 page 60,132
2 name _msgret
3 title C to Message Retriever
4 ;-------------------------------------------------------------------
5 ;
6 ; MODULE: _msgret
7 ;
8 ; PURPOSE: Supplies an interface between C programs and
9 ; the DOS 3.3 message retriever
10 ;
11 ; CALLING FORMAT:
12 ; msgret(&inregs,&outregs);
13 ;
14 ; DATE: 5-21-87
15 ;
16 ;-------------------------------------------------------------------
17
18 INCLUDE SYSMSG.INC ;PERMIT SYSTEM MESSAGE HANDLER DEFINITION ;AC010;
19
20 MSG_UTILNAME <FDISK> ;IDENTIFY THE COMPONENT ;AC010;
21
22 ;-------------------------------------------------------------------
23 ;-------------------------------------------------------------------
24
25
26 _TEXT SEGMENT BYTE PUBLIC 'CODE' ;AC010;
27 _TEXT ENDS ;AC010;
28 _DATA SEGMENT WORD PUBLIC 'DATA' ;AC010;
29 _DATA ENDS ;AC010;
30 CONST SEGMENT WORD PUBLIC 'CONST' ;AC010;
31 CONST ENDS ;AC010;
32 _BSS SEGMENT WORD PUBLIC 'BSS' ;AC010;
33 _BSS ENDS ;AC010;
34
35 DGROUP GROUP CONST, _BSS, _DATA ;AC010;
36 ASSUME CS: DGROUP, DS: DGROUP, SS: DGROUP, ES: NOTHING ;AC010;
37
38 public data_sysloadmsg ;AC010;
39 public data_sysdispmsg ;AC010;
40 public data_sysgetmsg ;AC010;
41
42 _DATA SEGMENT ;AC010;
43
44 MSG_SERVICES <MSGDATA> ;AC010;
45 MSG_SERVICES <LOADmsg,FARmsg> ;AC010;
46 MSG_SERVICES <DISPLAYmsg,GETmsg,CHARmsg,NUMmsg> ;AC010;
47 MSG_SERVICES <FDISK.CLA,FDISK.CLB,FDISK.CL1,FDISK.CL2,FDISK.CTL> ;AC010; ;AC010;
48
49
50 data_sysloadmsg proc far
51
52 push bp ; save user's base pointer ;AC010;
53 mov bp,sp ; set bp to current sp ;AC010;
54 push di ; save some registers ;AC010;
55 push si ;AC010;
56
57 ; copy C inregs into proper registers
58
59 mov di,[bp+4+4] ; fix di (arg 0) ;AC010;
60
61 ;-------------------------------------------------------------------
62
63 mov ax,[di+0ah] ; load di ;AC010;
64 push ax ; the di value from inregs is now on stack ;AC010;
65
66 mov ax,[di+00] ; get inregs.x.ax ;AC010;
67 mov bx,[di+02] ; get inregs.x.bx ;AC010;
68 mov cx,[di+04] ; get inregs.x.cx ;AC010;
69 mov dx,[di+06] ; get inregs.x.dx ;AC010;
70 mov si,[di+08] ; get inregs.x.si ;AC010;
71 pop di ; get inregs.x.di from stack ;AC010;
72
73 push bp ; save base pointer ;AC010;
74
75 ;-------------------------------------------------------------------
76
77 call sysloadmsg ; call the message retriever ;AC010;
78
79 ;-------------------------------------------------------------------
80
81 pop bp ; restore base pointer ;AC010;
82 push di ; the di value from call is now on stack ;AC010;
83 mov di,[bp+6+4] ; fix di (arg 1) ;AC010;
84
85 mov [di+00],ax ; load outregs.x.ax ;AC010;
86 mov [di+02],bx ; load outregs.x.bx ;AC010;
87 mov [di+04],cx ; load outregs.x.cx ;AC010;
88 mov [di+06],dx ; load outregs.x.dx ;AC010;
89 mov [di+08],si ; load outregs.x.si ;AC010;
90
91 lahf ; get flags into ax ;AC010;
92 mov al,ah ; move into low byte ;AC010;
93 mov [di+0ch],ax ; load outregs.x.cflag ;AC010;
94
95 pop ax ; get di from stack ;AC010;
96 mov [di+0ah],ax ; load outregs.x.di ;AC010;
97
98 ;-------------------------------------------------------------------
99
100 pop si ; restore registers ;AC010;
101 pop di ;AC010;
102 mov sp,bp ; restore sp ;AC010;
103 pop bp ; restore user's bp ;AC010;
104 ret
105
106 data_sysloadmsg endp ;AC010;
107
108
109 data_sysdispmsg proc far ;AC010;
110
111 push bp ; save user's base pointer ;AC010;
112 mov bp,sp ; set bp to current sp ;AC010;
113 push di ; save some registers ;AC010;
114 push si ;AC010;
115
116 ; copy C inregs into proper registers
117
118 mov di,[bp+4+4] ; fix di (arg 0) ;AC010;
119
120 ;-------------------------------------------------------------------
121
122 mov ax,[di+0ah] ; load di ;AC010;
123 push ax ; the di value from inregs is now on stack ;AC010;
124
125 mov ax,[di+00] ; get inregs.x.ax ;AC010;
126 mov bx,[di+02] ; get inregs.x.bx ;AC010;
127 mov cx,[di+04] ; get inregs.x.cx ;AC010;
128 mov dx,[di+06] ; get inregs.x.dx ;AC010;
129 mov si,[di+08] ; get inregs.x.si ;AC010;
130 pop di ; get inregs.x.di from stack ;AC010;
131
132 push bp ; save base pointer ;AC010;
133
134 ;-------------------------------------------------------------------
135
136 call sysdispmsg ;AC010;
137
138 ;-------------------------------------------------------------------
139
140 pop bp ; restore base pointer ;AC010;
141 push di ; the di value from call is now on stack ;AC010;
142 mov di,[bp+6+4] ; fix di (arg 1) ;AC010;
143
144 mov [di+00],ax ; load outregs.x.ax ;AC010;
145 mov [di+02],bx ; load outregs.x.bx ;AC010;
146 mov [di+04],cx ; load outregs.x.cx ;AC010;
147 mov [di+06],dx ; load outregs.x.dx ;AC010;
148 mov [di+08],si ; load outregs.x.si ;AC010;
149
150 lahf ; get flags into ax ;AC010;
151 mov al,ah ; move into low byte ;AC010;
152 mov [di+0ch],ax ; load outregs.x.cflag ;AC010;
153
154 pop ax ; get di from stack ;AC010;
155 mov [di+0ah],ax ; load outregs.x.di ;AC010;
156
157 ;-------------------------------------------------------------------
158
159 pop si ; restore registers ;AC010;
160 pop di ;AC010;
161 mov sp,bp ; restore sp ;AC010;
162 pop bp ; restore user's bp ;AC010;
163 ret ;AC010;
164
165 data_sysdispmsg endp ;AC010;
166
167
168 data_sysgetmsg proc far ;AC010;
169
170 push bp ; save user's base pointer ;AC010;
171 mov bp,sp ; set bp to current sp ;AC010;
172 push di ; save some registers ;AC010;
173 push si ;AC010;
174
175 ; copy C inregs into proper registers
176
177 mov di,[bp+4+4] ; fix di (arg 0) ;AC010;
178
179 ;-------------------------------------------------------------------
180
181 mov ax,[di+0ah] ; load di ;AC010;
182 push ax ; the di value from inregs is now on stack ;AC010;
183
184 mov ax,[di+00] ; get inregs.x.ax ;AC010;
185 mov bx,[di+02] ; get inregs.x.bx ;AC010;
186 mov cx,[di+04] ; get inregs.x.cx ;AC010;
187 mov dx,[di+06] ; get inregs.x.dx ;AC010;
188 mov si,[di+08] ; get inregs.x.si ;AC010;
189 pop di ; get inregs.x.di from stack ;AC010;
190
191 push bp ; save base pointer ;AC010;
192
193 ;-------------------------------------------------------------------
194
195 call sysgetmsg ; call the message retriever ;AC010;
196
197 ;-------------------------------------------------------------------
198
199 pop bp ; restore base pointer ;AC010;
200 push di ; the di value from call is now on stack ;AC010;
201 mov di,[bp+6+4] ; fix di (arg 1) ;AC010;
202
203 push ax ; save ax ;AC010;
204 mov [di+00],es ; load segregs.es ;AC010;
205 mov [di+06],ds ; load outregs.ds ;AC010;
206 pop ax ; restore ax ;AC010;
207
208 pop di ; restore di ;AC010;
209 push di ; save it ;AC010;
210 mov di,[bp+8+4] ; fix di (arg 2) ;AC010;
211 mov [di+00],ax ; load outregs.x.ax ;AC010;
212 mov [di+02],bx ; load outregs.x.bx ;AC010;
213 mov [di+04],cx ; load outregs.x.cx ;AC010;
214 mov [di+06],dx ; load outregs.x.dx ;AC010;
215 mov [di+08],si ; load outregs.x.si ;AC010;
216
217 lahf ; get flags into ax ;AC010;
218 mov al,ah ; move into low byte ;AC010;
219 mov [di+0ch],ax ; load outregs.x.cflag ;AC010;
220
221 pop ax ; get di from stack ;AC010;
222 mov [di+0ah],ax ; load outregs.x.di ;AC010;
223
224 ;-------------------------------------------------------------------
225
226 pop si ; restore registers ;AC010;
227 pop di ;AC010;
228 mov sp,bp ; restore sp ;AC010;
229 pop bp ; restore user's bp ;AC010;
230 ret ;AC010;
231
232 data_sysgetmsg endp ;AC010;
233
234
235 _DATA ends ; end code segment ;AC010;
236
237 _TEXT SEGMENT ;AC010;
238
239 assume cs:_TEXT ;AC010;
240
241 public _sysdispmsg ;AC010;
242 public _sysloadmsg ;AC010;
243 public _sysgetmsg ;AC010;
244
245 _sysdispmsg proc near ;AC010;
246 call data_sysdispmsg ;AC010;
247 ret ;AC010;
248 _sysdispmsg endp ;AC010;
249
250 _sysloadmsg proc near ;AC010;
251 call data_sysloadmsg ;AC010;
252 ret ;AC010;
253 _sysloadmsg endp ;AC010;
254
255 _sysgetmsg proc near ;AC010;
256 call data_sysgetmsg ;AC010;
257 ret ;AC010;
258 _sysgetmsg endp ;AC010;
259
260 _TEXT ENDS ;AC010;
261 end ;AC010;
262
263 \1a
The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes