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Rev 7121 | Rev 7129 | ||
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1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
2 | ;; ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
4 | ;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;; |
4 | ;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;; |
5 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; Distributed under terms of the GNU General Public License ;; |
6 | ;; ;; |
6 | ;; ;; |
7 | ;; BOOTCODE.INC ;; |
7 | ;; BOOTCODE.INC ;; |
8 | ;; ;; |
8 | ;; ;; |
9 | ;; KolibriOS 16-bit loader, ;; |
9 | ;; KolibriOS 16-bit loader, ;; |
10 | ;; based on bootcode for MenuetOS ;; |
10 | ;; based on bootcode for MenuetOS ;; |
11 | ;; ;; |
11 | ;; ;; |
12 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
12 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
13 | 13 | ||
14 | $Revision: 7121 $ |
14 | $Revision: 7129 $ |
15 | 15 | ||
16 | 16 | ||
17 | ;========================================================================== |
17 | ;========================================================================== |
18 | ; |
18 | ; |
19 | ; 16 BIT FUNCTIONS |
19 | ; 16 BIT FUNCTIONS |
20 | ; |
20 | ; |
21 | ;========================================================================== |
21 | ;========================================================================== |
22 | 22 | ||
23 | 23 | ||
24 | putchar: |
24 | putchar: |
25 | ; in: al=character |
25 | ; in: al=character |
26 | mov ah, 0Eh |
26 | mov ah, 0Eh |
27 | mov bh, 0 |
27 | mov bh, 0 |
28 | int 10h |
28 | int 10h |
29 | ret |
29 | ret |
30 | 30 | ||
31 | print: |
31 | print: |
32 | ; in: si->string |
32 | ; in: si->string |
33 | mov al, 186 |
33 | mov al, 186 |
34 | call putchar |
34 | call putchar |
35 | mov al, ' ' |
35 | mov al, ' ' |
36 | call putchar |
36 | call putchar |
37 | 37 | ||
38 | printplain: |
38 | printplain: |
39 | ; in: si->string |
39 | ; in: si->string |
40 | pusha |
40 | pusha |
41 | lodsb |
41 | lodsb |
42 | @@: |
42 | @@: |
43 | call putchar |
43 | call putchar |
44 | lodsb |
44 | lodsb |
45 | test al, al |
45 | test al, al |
46 | jnz @b |
46 | jnz @b |
47 | popa |
47 | popa |
48 | ret |
48 | ret |
49 | 49 | ||
50 | getkey: ; Use BIOS INT 16h to read a key from the keyboard |
50 | getkey: ; Use BIOS INT 16h to read a key from the keyboard |
51 | ; get number in range [bl,bh] (bl,bh in ['0'..'9']) |
51 | ; get number in range [bl,bh] (bl,bh in ['0'..'9']) |
52 | ; in: bx=range |
52 | ; in: bx=range |
53 | ; out: ax=digit (1..9, 10 for 0) |
53 | ; out: ax=digit (1..9, 10 for 0) |
54 | mov ah, 0 ; If 'int 16h' is called with 'ah' equal to zero, the BIOS will not return control to the caller |
54 | mov ah, 0 ; If 'int 16h' is called with 'ah' equal to zero, the BIOS will not return control to the caller |
55 | int 16h ; until a key is available in the system type ahead buffer. On return, 'al' contains the ASCII |
55 | int 16h ; until a key is available in the system type ahead buffer. On return, 'al' contains the ASCII |
56 | cmp al, 27 ; code for the key read from the buffer and 'ah' contains the keyboard scan code. (27=>ESC) |
56 | cmp al, 27 ; code for the key read from the buffer and 'ah' contains the keyboard scan code. (27=>ESC) |
57 | jz @f ; If ESC is pressed, return (user doesn't want to change any value). |
57 | jz @f ; If ESC is pressed, return (user doesn't want to change any value). |
58 | cmp al, bl ; Compare 'al' (ASCII code of key pressed) with 'bl' (lowest accepted char from the range). |
58 | cmp al, bl ; Compare 'al' (ASCII code of key pressed) with 'bl' (lowest accepted char from the range). |
59 | jb getkey ; ASCII code is below lowest accepted value => continue waiting for another key. |
59 | jb getkey ; ASCII code is below lowest accepted value => continue waiting for another key. |
60 | cmp al, bh ; Compare 'al' (ASCII code of key pressed) with 'bh' (highest accepted char from the range). |
60 | cmp al, bh ; Compare 'al' (ASCII code of key pressed) with 'bh' (highest accepted char from the range). |
61 | ja getkey ; ASCII code is above highest accepted value => continue waiting for another key. |
61 | ja getkey ; ASCII code is above highest accepted value => continue waiting for another key. |
62 | push ax ; If the pressed key is in the accepted range, save it on the stack and echo to screen. |
62 | push ax ; If the pressed key is in the accepted range, save it on the stack and echo to screen. |
63 | call putchar |
63 | call putchar |
64 | pop ax |
64 | pop ax |
65 | and ax, 0Fh ; Convert ASCII code to number: '1'->1, '2'->2, etc. 0Fh=1111b. |
65 | and ax, 0Fh ; Convert ASCII code to number: '1'->1, '2'->2, etc. 0Fh=1111b. |
66 | jnz @f ; ASCII code for '0' is 48 (110000b). (110000b AND 1111b) = 0 |
66 | jnz @f ; ASCII code for '0' is 48 (110000b). (110000b AND 1111b) = 0 |
67 | mov al, 10 ; So if key '0' was entered, return 10 in 'ax' |
67 | mov al, 10 ; So if key '0' was entered, return 10 in 'ax' |
68 | @@: |
68 | @@: |
69 | ret |
69 | ret |
70 | 70 | ||
71 | setcursor: |
71 | setcursor: |
72 | ; in: dl=column, dh=row |
72 | ; in: dl=column, dh=row |
73 | mov ah, 2 |
73 | mov ah, 2 |
74 | mov bh, 0 |
74 | mov bh, 0 |
75 | int 10h |
75 | int 10h |
76 | ret |
76 | ret |
77 | 77 | ||
78 | macro _setcursor row,column |
78 | macro _setcursor row,column |
79 | { |
79 | { |
80 | mov dx, row*256 + column |
80 | mov dx, row*256 + column |
81 | call setcursor |
81 | call setcursor |
82 | } |
82 | } |
83 | 83 | ||
84 | macro _ask_question question,range,variable_to_set |
84 | macro _ask_question question,range,variable_to_set |
85 | { |
85 | { |
86 | _setcursor 16,0 |
86 | _setcursor 16,0 |
87 | mov si, question ; Print the question |
87 | mov si, question ; Print the question |
88 | call print |
88 | call print |
89 | mov bx, range ; range accepted for answer |
89 | mov bx, range ; range accepted for answer |
90 | call getkey |
90 | call getkey |
91 | cmp al, 27 ; If ESC was pressed, do not change the value |
91 | cmp al, 27 ; If ESC was pressed, do not change the value |
92 | jz .esc_pressed |
92 | jz .esc_pressed |
93 | mov [variable_to_set], al |
93 | mov [variable_to_set], al |
94 | } |
94 | } |
95 | 95 | ||
96 | boot_read_floppy: |
96 | boot_read_floppy: |
97 | push si |
97 | push si |
98 | xor si, si |
98 | xor si, si |
99 | mov ah, 2 ; read |
99 | mov ah, 2 ; read |
100 | @@: |
100 | @@: |
101 | push ax |
101 | push ax |
102 | int 0x13 |
102 | int 0x13 |
103 | pop ax |
103 | pop ax |
104 | jnc @f |
104 | jnc @f |
105 | inc si |
105 | inc si |
106 | cmp si, 10 |
106 | cmp si, 10 |
107 | jb @b |
107 | jb @b |
108 | sayerr_badsect: |
108 | sayerr_badsect: |
109 | mov si, badsect |
109 | mov si, badsect |
110 | sayerr_plain: |
110 | sayerr_plain: |
111 | call printplain |
111 | call printplain |
112 | jmp $ |
112 | jmp $ |
113 | @@: |
113 | @@: |
114 | pop si |
114 | pop si |
115 | ret |
115 | ret |
116 | 116 | ||
117 | ; convert abs. sector number (AX) to BIOS T:H:S |
117 | ; convert abs. sector number (AX) to BIOS T:H:S |
118 | ; sector number = (abs.sector%BPB_SecPerTrk)+1 |
118 | ; sector number = (abs.sector%BPB_SecPerTrk)+1 |
119 | ; pre.track number = (abs.sector/BPB_SecPerTrk) |
119 | ; pre.track number = (abs.sector/BPB_SecPerTrk) |
120 | ; head number = pre.track number%BPB_NumHeads |
120 | ; head number = pre.track number%BPB_NumHeads |
121 | ; track number = pre.track number/BPB_NumHeads |
121 | ; track number = pre.track number/BPB_NumHeads |
122 | ; Return: cl - sector number |
122 | ; Return: cl - sector number |
123 | ; ch - track number |
123 | ; ch - track number |
124 | ; dl - drive number (0 = a:) |
124 | ; dl - drive number (0 = a:) |
125 | ; dh - head number |
125 | ; dh - head number |
126 | conv_abs_to_THS: |
126 | conv_abs_to_THS: |
127 | push bx |
127 | push bx |
128 | mov bx, word [BPB_SecPerTrk] |
128 | mov bx, word [BPB_SecPerTrk] |
129 | xor dx, dx |
129 | xor dx, dx |
130 | div bx |
130 | div bx |
131 | inc dx |
131 | inc dx |
132 | mov cl, dl ; cl = sector number |
132 | mov cl, dl ; cl = sector number |
133 | mov bx, word [BPB_NumHeads] |
133 | mov bx, word [BPB_NumHeads] |
134 | xor dx, dx |
134 | xor dx, dx |
135 | div bx |
135 | div bx |
136 | ; !!!!!!! ax = track number, dx = head number |
136 | ; !!!!!!! ax = track number, dx = head number |
137 | mov ch, al ; ch=track number |
137 | mov ch, al ; ch=track number |
138 | xchg dh, dl ; dh=head number |
138 | xchg dh, dl ; dh=head number |
139 | mov dl, 0 ; dl=0 (drive 0 (a:)) |
139 | mov dl, 0 ; dl=0 (drive 0 (a:)) |
140 | pop bx |
140 | pop bx |
141 | retn |
141 | retn |
142 | ; needed variables |
142 | ; needed variables |
143 | BPB_SecPerTrk dw 0 ; sectors per track |
143 | BPB_SecPerTrk dw 0 ; sectors per track |
144 | BPB_NumHeads dw 0 ; number of heads |
144 | BPB_NumHeads dw 0 ; number of heads |
145 | BPB_FATSz16 dw 0 ; size of FAT |
145 | BPB_FATSz16 dw 0 ; size of FAT |
146 | BPB_RootEntCnt dw 0 ; count of root dir. entries |
146 | BPB_RootEntCnt dw 0 ; count of root dir. entries |
147 | BPB_BytsPerSec dw 0 ; bytes per sector |
147 | BPB_BytsPerSec dw 0 ; bytes per sector |
148 | BPB_RsvdSecCnt dw 0 ; number of reserved sectors |
148 | BPB_RsvdSecCnt dw 0 ; number of reserved sectors |
149 | BPB_TotSec16 dw 0 ; count of the sectors on the volume |
149 | BPB_TotSec16 dw 0 ; count of the sectors on the volume |
150 | BPB_SecPerClus db 0 ; number of sectors per cluster |
150 | BPB_SecPerClus db 0 ; number of sectors per cluster |
151 | BPB_NumFATs db 0 ; number of FAT tables |
151 | BPB_NumFATs db 0 ; number of FAT tables |
152 | abs_sector_adj dw 0 ; adjustment to make abs. sector number |
152 | abs_sector_adj dw 0 ; adjustment to make abs. sector number |
153 | end_of_FAT dw 0 ; end of FAT table |
153 | end_of_FAT dw 0 ; end of FAT table |
154 | FirstDataSector dw 0 ; begin of data |
154 | FirstDataSector dw 0 ; begin of data |
155 | 155 | ||
156 | ;========================================================================= |
156 | ;========================================================================= |
157 | ; |
157 | ; |
158 | ; 16 BIT CODE |
158 | ; 16 BIT CODE |
159 | ; |
159 | ; |
160 | ;========================================================================= |
160 | ;========================================================================= |
161 | 161 | ||
162 | include 'bootvesa.inc' ;Include source for boot vesa |
162 | include 'bootvesa.inc' ;Include source for boot vesa |
163 | if defined extended_primary_loader |
163 | if defined extended_primary_loader |
164 | include 'parsers.inc' |
164 | include 'parsers.inc' |
165 | end if |
165 | end if |
166 | 166 | ||
167 | start_of_code: |
167 | start_of_code: |
168 | 168 | ||
169 | if defined extended_primary_loader |
169 | if defined extended_primary_loader |
170 | ; save data from primary loader |
170 | ; save data from primary loader |
171 | mov word [cs:bootcallback], si |
171 | mov word [cs:bootcallback], si |
172 | mov word [cs:bootcallback+2], ds |
172 | mov word [cs:bootcallback+2], ds |
173 | push cs |
173 | push cs |
174 | pop ds |
174 | pop ds |
175 | mov [bootdevice], ax |
175 | mov [bootdevice], ax |
176 | mov [bootfs], bx |
176 | mov [bootfs], bx |
177 | 177 | ||
178 | ; set up stack |
178 | ; set up stack |
179 | mov ax, (TMP_STACK_TOP and 0xF0000) shr 4 |
179 | mov ax, (TMP_STACK_TOP and 0xF0000) shr 4 |
180 | mov ss, ax |
180 | mov ss, ax |
181 | mov sp, TMP_STACK_TOP and 0xFFFF |
181 | mov sp, TMP_STACK_TOP and 0xFFFF |
182 | 182 | ||
183 | ; try to load configuration file |
183 | ; try to load configuration file |
184 | mov ax, 1 |
184 | mov ax, 1 |
185 | mov di, config_file_struct |
185 | mov di, config_file_struct |
186 | call [bootcallback] |
186 | call [bootcallback] |
187 | cld |
187 | cld |
188 | push cs |
188 | push cs |
189 | pop es |
189 | pop es |
190 | ; bx=0 - ok, bx=1 - part of file loaded, assume this is ok |
190 | ; bx=0 - ok, bx=1 - part of file loaded, assume this is ok |
191 | cmp bx, 1 |
191 | cmp bx, 1 |
192 | ja .config_bad |
192 | ja .config_bad |
193 | ; configuration file was loaded, parse |
193 | ; configuration file was loaded, parse |
194 | ; if length is too big, use first 0FFFFh bytes |
194 | ; if length is too big, use first 0FFFFh bytes |
195 | test dx, dx |
195 | test dx, dx |
196 | jz @f |
196 | jz @f |
197 | mov ax, 0FFFFh |
197 | mov ax, 0FFFFh |
198 | @@: |
198 | @@: |
199 | ; ds:si will be pointer to current data, dx = limit |
199 | ; ds:si will be pointer to current data, dx = limit |
200 | xchg ax, dx |
200 | xchg ax, dx |
201 | push 4000h |
201 | push 4000h |
202 | pop ds |
202 | pop ds |
203 | xor si, si |
203 | xor si, si |
204 | .parse_loop: |
204 | .parse_loop: |
205 | ; skip spaces |
205 | ; skip spaces |
206 | cmp si, dx |
206 | cmp si, dx |
207 | jae .parse_done |
207 | jae .parse_done |
208 | lodsb |
208 | lodsb |
209 | cmp al, ' ' |
209 | cmp al, ' ' |
210 | jbe .parse_loop |
210 | jbe .parse_loop |
211 | dec si |
211 | dec si |
212 | ; loop over all possible configuration values |
212 | ; loop over all possible configuration values |
213 | mov bx, config_file_variables |
213 | mov bx, config_file_variables |
214 | .find_variant: |
214 | .find_variant: |
215 | ; get length |
215 | ; get length |
216 | mov cx, [es:bx] |
216 | mov cx, [es:bx] |
217 | ; zero length = end of list |
217 | ; zero length = end of list |
218 | jecxz .find_newline |
218 | jecxz .find_newline |
219 | ; skip over length |
219 | ; skip over length |
220 | inc bx |
220 | inc bx |
221 | inc bx |
221 | inc bx |
222 | mov di, bx |
222 | mov di, bx |
223 | ; skip over string |
223 | ; skip over string |
224 | add bx, cx |
224 | add bx, cx |
225 | ; test whether we have at least cx symbols left |
225 | ; test whether we have at least cx symbols left |
226 | mov ax, cx |
226 | mov ax, cx |
227 | add ax, si |
227 | add ax, si |
228 | jc .next_variant1 |
228 | jc .next_variant1 |
229 | cmp ax, dx |
229 | cmp ax, dx |
230 | jae .next_variant1 |
230 | jae .next_variant1 |
231 | ; save current position |
231 | ; save current position |
232 | push si |
232 | push si |
233 | ; compare strings |
233 | ; compare strings |
234 | repz cmpsb |
234 | repz cmpsb |
235 | jnz .next_variant2 |
235 | jnz .next_variant2 |
236 | ; strings are equal; look for "=" with possible spaces before and after |
236 | ; strings are equal; look for "=" with possible spaces before and after |
237 | @@: |
237 | @@: |
238 | cmp si, dx |
238 | cmp si, dx |
239 | jae .next_variant2 |
239 | jae .next_variant2 |
240 | lodsb |
240 | lodsb |
241 | cmp al, ' ' |
241 | cmp al, ' ' |
242 | jbe @b |
242 | jbe @b |
243 | cmp al, '=' |
243 | cmp al, '=' |
244 | jnz .next_variant2 |
244 | jnz .next_variant2 |
245 | ; ok, we found the true variant |
245 | ; ok, we found the true variant |
246 | ; ignore saved position on the stack |
246 | ; ignore saved position on the stack |
247 | pop ax |
247 | pop ax |
248 | ; call the parser |
248 | ; call the parser |
249 | call word [es:bx] |
249 | call word [es:bx] |
250 | ; line parsed, find next |
250 | ; line parsed, find next |
251 | .find_newline: |
251 | .find_newline: |
252 | cmp si, dx |
252 | cmp si, dx |
253 | jae .parse_done |
253 | jae .parse_done |
254 | lodsb |
254 | lodsb |
255 | cmp al, 13 |
255 | cmp al, 13 |
256 | jz .parse_loop |
256 | jz .parse_loop |
257 | cmp al, 10 |
257 | cmp al, 10 |
258 | jz .parse_loop |
258 | jz .parse_loop |
259 | jmp .find_newline |
259 | jmp .find_newline |
260 | .next_variant2: |
260 | .next_variant2: |
261 | ; continue to the next variant, restoring current position |
261 | ; continue to the next variant, restoring current position |
262 | pop si |
262 | pop si |
263 | .next_variant1: |
263 | .next_variant1: |
264 | ; continue to the next variant |
264 | ; continue to the next variant |
265 | ; skip over the parser |
265 | ; skip over the parser |
266 | inc bx |
266 | inc bx |
267 | inc bx |
267 | inc bx |
268 | jmp .find_variant |
268 | jmp .find_variant |
269 | .parse_done: |
269 | .parse_done: |
270 | .config_bad: |
270 | .config_bad: |
271 | 271 | ||
272 | ; set up segment registers |
272 | ; set up segment registers |
273 | push cs |
273 | push cs |
274 | pop ds |
274 | pop ds |
275 | else |
275 | else |
276 | cld |
276 | cld |
- | 277 | push 0 |
|
- | 278 | pop es |
|
277 | ; \begin{diamond}[02.12.2005] |
279 | ; \begin{diamond}[02.12.2005] |
278 | ; if bootloader sets ax = 'KL', then ds:si points to loader block |
280 | ; if bootloader sets ax = 'KL', then ds:si points to loader block |
279 | cmp ax, 'KL' |
281 | cmp ax, 'KL' |
280 | jnz @f |
282 | jnz @f |
281 | mov word [cs:cfgmanager.loader_block], si |
283 | mov word [cs:cfgmanager.loader_block], si |
282 | mov word [cs:cfgmanager.loader_block+2], ds |
284 | mov word [cs:cfgmanager.loader_block+2], ds |
- | 285 | mov word [es:BOOT_KERNEL_RESTART], kernel_restart_bootblock |
|
283 | @@: |
286 | @@: |
284 | ; \end{diamond}[02.12.2005] |
287 | ; \end{diamond}[02.12.2005] |
285 | 288 | ||
286 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source hard disk |
289 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source disk |
- | 290 | ; (see comment to BOOT_BX_FROM_LOAD and loader_doc.txt) |
|
287 | ; (see comment to bx_from_load) |
291 | mov word [es:BOOT_BX_FROM_LOAD], 'r1' ; default value: /rd/1 |
288 | cmp cx, 'HA' |
292 | cmp cx, 'HA' |
289 | jnz no_hd_load |
293 | jnz no_hd_load |
290 | cmp dx, 'RD' |
294 | cmp dx, 'RD' |
291 | jnz no_hd_load |
295 | jnz no_hd_load |
292 | mov word [cs:bx_from_load], bx ; {SPraid}[13.03.2007] |
296 | mov [es:BOOT_BX_FROM_LOAD], bx |
293 | no_hd_load: |
297 | no_hd_load: |
294 | 298 | ||
295 | ; set up stack |
299 | ; set up stack |
296 | mov ax, (TMP_STACK_TOP and 0xF0000) shr 4 |
300 | mov ax, (TMP_STACK_TOP and 0xF0000) shr 4 |
297 | mov ss, ax |
301 | mov ss, ax |
298 | mov sp, TMP_STACK_TOP and 0xFFFF |
302 | mov sp, TMP_STACK_TOP and 0xFFFF |
299 | ; set up segment registers |
303 | ; set up segment registers |
300 | push cs |
304 | push cs |
301 | pop ds |
305 | pop ds |
302 | push cs |
306 | push cs |
303 | pop es |
307 | pop es |
304 | end if |
308 | end if |
305 | 309 | ||
306 | ; set videomode |
310 | ; set videomode |
307 | mov ax, 3 |
311 | mov ax, 3 |
308 | int 0x10 |
312 | int 0x10 |
309 | 313 | ||
310 | if lang eq ru |
314 | if lang eq ru |
311 | ; Load & set russian VGA font (RU.INC) |
315 | ; Load & set russian VGA font (RU.INC) |
312 | mov bp, RU_FNT1 ; RU_FNT1 - First part |
316 | mov bp, RU_FNT1 ; RU_FNT1 - First part |
313 | mov bx, 1000h ; 768 bytes |
317 | mov bx, 1000h ; 768 bytes |
314 | mov cx, 30h ; 48 symbols |
318 | mov cx, 30h ; 48 symbols |
315 | mov dx, 80h ; 128 - position of first symbol |
319 | mov dx, 80h ; 128 - position of first symbol |
316 | mov ax, 1100h |
320 | mov ax, 1100h |
317 | int 10h |
321 | int 10h |
318 | 322 | ||
319 | mov bp, RU_FNT2 ; RU_FNT2 -Second part |
323 | mov bp, RU_FNT2 ; RU_FNT2 -Second part |
320 | mov bx, 1000h ; 512 bytes |
324 | mov bx, 1000h ; 512 bytes |
321 | mov cx, 20h ; 32 symbols |
325 | mov cx, 20h ; 32 symbols |
322 | mov dx, 0E0h ; 224 - position of first symbol |
326 | mov dx, 0E0h ; 224 - position of first symbol |
323 | mov ax, 1100h |
327 | mov ax, 1100h |
324 | int 10h |
328 | int 10h |
325 | ; End set VGA russian font |
329 | ; End set VGA russian font |
326 | else if lang eq et |
330 | else if lang eq et |
327 | mov bp, ET_FNT ; ET_FNT1 |
331 | mov bp, ET_FNT ; ET_FNT1 |
328 | mov bx, 1000h ; |
332 | mov bx, 1000h ; |
329 | mov cx, 255 ; 256 symbols |
333 | mov cx, 255 ; 256 symbols |
330 | xor dx, dx ; 0 - position of first symbol |
334 | xor dx, dx ; 0 - position of first symbol |
331 | mov ax, 1100h |
335 | mov ax, 1100h |
332 | int 10h |
336 | int 10h |
333 | end if |
337 | end if |
334 | 338 | ||
335 | ; draw frames |
339 | ; draw frames |
336 | push 0xb800 |
340 | push 0xb800 |
337 | pop es |
341 | pop es |
338 | xor di, di |
342 | xor di, di |
339 | mov ah, 1*16+15 |
343 | mov ah, 1*16+15 |
340 | 344 | ||
341 | ; draw top |
345 | ; draw top |
342 | mov si, d80x25_top |
346 | mov si, d80x25_top |
343 | mov cx, d80x25_top_num * 80 |
347 | mov cx, d80x25_top_num * 80 |
344 | @@: |
348 | @@: |
345 | lodsb |
349 | lodsb |
346 | stosw |
350 | stosw |
347 | loop @b |
351 | loop @b |
348 | ; draw spaces |
352 | ; draw spaces |
349 | mov si, space_msg |
353 | mov si, space_msg |
350 | mov dx, 25 - d80x25_top_num - d80x25_bottom_num |
354 | mov dx, 25 - d80x25_top_num - d80x25_bottom_num |
351 | dfl1: |
355 | dfl1: |
352 | push si |
356 | push si |
353 | mov cx, 80 |
357 | mov cx, 80 |
354 | @@: |
358 | @@: |
355 | lodsb |
359 | lodsb |
356 | stosw |
360 | stosw |
357 | loop @b |
361 | loop @b |
358 | pop si |
362 | pop si |
359 | dec dx |
363 | dec dx |
360 | jnz dfl1 |
364 | jnz dfl1 |
361 | ; draw bottom |
365 | ; draw bottom |
362 | mov si, d80x25_bottom |
366 | mov si, d80x25_bottom |
363 | mov cx, d80x25_bottom_num * 80 |
367 | mov cx, d80x25_bottom_num * 80 |
364 | @@: |
368 | @@: |
365 | lodsb |
369 | lodsb |
366 | stosw |
370 | stosw |
367 | loop @b |
371 | loop @b |
368 | 372 | ||
369 | mov byte [space_msg+80], 0 ; now space_msg is null terminated |
373 | mov byte [space_msg+80], 0 ; now space_msg is null terminated |
370 | 374 | ||
371 | _setcursor d80x25_top_num,0 |
375 | _setcursor d80x25_top_num,0 |
372 | 376 | ||
373 | 377 | ||
374 | ; TEST FOR 386+ |
378 | ; TEST FOR 386+ |
375 | 379 | ||
376 | mov bx, 0x4000 |
380 | mov bx, 0x4000 |
377 | pushf |
381 | pushf |
378 | pop ax |
382 | pop ax |
379 | mov dx, ax |
383 | mov dx, ax |
380 | xor ax, bx |
384 | xor ax, bx |
381 | push ax |
385 | push ax |
382 | popf |
386 | popf |
383 | pushf |
387 | pushf |
384 | pop ax |
388 | pop ax |
385 | and ax, bx |
389 | and ax, bx |
386 | and dx, bx |
390 | and dx, bx |
387 | cmp ax, dx |
391 | cmp ax, dx |
388 | jnz cpugood |
392 | jnz cpugood |
389 | mov si, not386 |
393 | mov si, not386 |
390 | sayerr: |
394 | sayerr: |
391 | call print |
395 | call print |
392 | jmp $ |
396 | jmp $ |
393 | cpugood: |
397 | cpugood: |
394 | 398 | ||
395 | push 0 |
399 | push 0 |
396 | popf |
400 | popf |
397 | 401 | ||
398 | ; set up esp |
402 | ; set up esp |
399 | movzx esp, sp |
403 | movzx esp, sp |
400 | 404 | ||
401 | push 0 |
405 | push 0 |
402 | pop es |
406 | pop es |
403 | 407 | ||
404 | xor cx, cx |
408 | xor cx, cx |
405 | @@: |
409 | @@: |
406 | in al, 64h |
410 | in al, 64h |
407 | test al, 2 |
411 | test al, 2 |
408 | loopnz @b |
412 | loopnz @b |
409 | 413 | ||
410 | mov al, 0xf6 ; Сброс клавиатуры, разрешить сканирование |
414 | mov al, 0xf6 ; Сброс клавиатуры, разрешить сканирование |
411 | out 0x60, al |
415 | out 0x60, al |
412 | xor cx, cx |
416 | xor cx, cx |
413 | @@: |
417 | @@: |
414 | in al, 64h |
418 | in al, 64h |
415 | test al, 1 |
419 | test al, 1 |
416 | loopz @b |
420 | loopz @b |
417 | in al, 0x60 |
421 | in al, 0x60 |
418 | 422 | ||
419 | ;;;/diamond today 5.02.2008 |
423 | ;;;/diamond today 5.02.2008 |
420 | ; set keyboard typematic rate & delay |
424 | ; set keyboard typematic rate & delay |
421 | mov al, 0xf3 |
425 | mov al, 0xf3 |
422 | out 0x60, al |
426 | out 0x60, al |
423 | xor cx, cx |
427 | xor cx, cx |
424 | @@: |
428 | @@: |
425 | in al, 64h |
429 | in al, 64h |
426 | test al, 1 |
430 | test al, 1 |
427 | loopz @b |
431 | loopz @b |
428 | in al, 0x60 |
432 | in al, 0x60 |
429 | mov al, 0 |
433 | mov al, 0 |
430 | out 0x60, al |
434 | out 0x60, al |
431 | xor cx, cx |
435 | xor cx, cx |
432 | @@: |
436 | @@: |
433 | in al, 64h |
437 | in al, 64h |
434 | test al, 1 |
438 | test al, 1 |
435 | loopz @b |
439 | loopz @b |
436 | in al, 0x60 |
440 | in al, 0x60 |
437 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
441 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
438 | sti |
442 | sti |
439 | ; --------------- APM --------------------- |
443 | ; --------------- APM --------------------- |
440 | and word [es:BOOT_APM_VERSION], 0 ; ver = 0.0 (APM not found) |
444 | and word [es:BOOT_APM_VERSION], 0 ; ver = 0.0 (APM not found) |
441 | mov ax, 0x5300 |
445 | mov ax, 0x5300 |
442 | xor bx, bx |
446 | xor bx, bx |
443 | int 0x15 |
447 | int 0x15 |
444 | jc apm_end ; APM not found |
448 | jc apm_end ; APM not found |
445 | test cx, 2 |
449 | test cx, 2 |
446 | jz apm_end ; APM 32-bit protected-mode interface not supported |
450 | jz apm_end ; APM 32-bit protected-mode interface not supported |
447 | mov [es:BOOT_APM_VERSION], ax ; Save APM Version |
451 | mov [es:BOOT_APM_VERSION], ax ; Save APM Version |
448 | mov [es:BOOT_APM_FLAGS], cx ; Save APM flags |
452 | mov [es:BOOT_APM_FLAGS], cx ; Save APM flags |
449 | 453 | ||
450 | ; Write APM ver ---- |
454 | ; Write APM ver ---- |
451 | and ax, 0xf0f |
455 | and ax, 0xf0f |
452 | add ax, '00' |
456 | add ax, '00' |
453 | mov si, msg_apm |
457 | mov si, msg_apm |
454 | mov [si + 5], ah |
458 | mov [si + 5], ah |
455 | mov [si + 7], al |
459 | mov [si + 7], al |
456 | _setcursor 0, 3 |
460 | _setcursor 0, 3 |
457 | call printplain |
461 | call printplain |
458 | ; ------------------ |
462 | ; ------------------ |
459 | 463 | ||
460 | mov ax, 0x5304 ; Disconnect interface |
464 | mov ax, 0x5304 ; Disconnect interface |
461 | xor bx, bx |
465 | xor bx, bx |
462 | int 0x15 |
466 | int 0x15 |
463 | mov ax, 0x5303 ; Connect 32 bit mode interface |
467 | mov ax, 0x5303 ; Connect 32 bit mode interface |
464 | xor bx, bx |
468 | xor bx, bx |
465 | int 0x15 |
469 | int 0x15 |
466 | 470 | ||
467 | mov [es:BOOT_APM_ENTRY], ebx |
471 | mov [es:BOOT_APM_ENTRY], ebx |
468 | mov [es:BOOT_APM_CODE_32], ax |
472 | mov [es:BOOT_APM_CODE_32], ax |
469 | mov [es:BOOT_APM_CODE_16], cx |
473 | mov [es:BOOT_APM_CODE_16], cx |
470 | mov [es:BOOT_APM_DATA_16], dx |
474 | mov [es:BOOT_APM_DATA_16], dx |
471 | 475 | ||
472 | apm_end: |
476 | apm_end: |
473 | _setcursor d80x25_top_num, 0 |
477 | _setcursor d80x25_top_num, 0 |
474 | 478 | ||
475 | if ~ defined extended_primary_loader |
479 | if ~ defined extended_primary_loader |
476 | ;CHECK current of code |
480 | ;CHECK current of code |
477 | cmp [cfgmanager.loader_block], -1 |
481 | cmp [cfgmanager.loader_block], -1 |
478 | jz noloaderblock |
482 | jz noloaderblock |
479 | les bx, [cfgmanager.loader_block] |
483 | les bx, [cfgmanager.loader_block] |
480 | cmp byte [es:bx], 1 |
484 | cmp byte [es:bx], 1 |
481 | mov si, loader_block_error |
485 | mov si, loader_block_error |
482 | jnz sayerr |
486 | jnz sayerr |
483 | push 0 |
487 | push 0 |
484 | pop es |
488 | pop es |
485 | end if |
489 | end if |
486 | 490 | ||
487 | noloaderblock: |
491 | noloaderblock: |
488 | ; DISPLAY VESA INFORMATION |
492 | ; DISPLAY VESA INFORMATION |
489 | call print_vesa_info |
493 | call print_vesa_info |
490 | call calc_vmodes_table |
494 | call calc_vmodes_table |
491 | call check_first_parm ;check and enable cursor_pos |
495 | call check_first_parm ;check and enable cursor_pos |
492 | 496 | ||
493 | ; \begin{diamond}[30.11.2005] |
497 | ; \begin{diamond}[30.11.2005] |
494 | cfgmanager: |
498 | cfgmanager: |
495 | ; settings: |
499 | ; settings: |
496 | ; a) preboot_graph = graphical mode |
500 | ; a) preboot_graph = graphical mode |
497 | ; preboot_gprobe = probe this mode? |
501 | ; preboot_gprobe = probe this mode? |
498 | ; b) preboot_biosdisk = use BIOS disks through V86 emulation? // (earlier was: preboot_dma = use DMA access?) |
502 | ; b) preboot_biosdisk = use BIOS disks through V86 emulation? // (earlier was: preboot_dma = use DMA access?) |
499 | ; c) preboot_debug = duplicates kernel debug output to the screen |
503 | ; c) preboot_debug = duplicates kernel debug output to the screen |
500 | ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
504 | ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
501 | ; e) preboot_device = from where to boot? |
505 | ; e) preboot_device = from where to boot? |
502 | 506 | ||
503 | ; determine default settings |
507 | ; determine default settings |
504 | if ~ defined extended_primary_loader |
508 | if ~ defined extended_primary_loader |
505 | mov [.bSettingsChanged], 0 |
509 | mov [.bSettingsChanged], 0 |
506 | end if |
510 | end if |
507 | 511 | ||
508 | ;.preboot_gr_end: |
512 | ;.preboot_gr_end: |
509 | mov di, preboot_device |
513 | mov di, preboot_device |
510 | ; if image in memory is present and [preboot_device] is uninitialized, |
514 | ; if image in memory is present and [preboot_device] is uninitialized, |
511 | ; set it to use this preloaded image |
515 | ; set it to use this preloaded image |
512 | cmp byte [di], 0 |
516 | cmp byte [di], 0 |
513 | jnz .preboot_device_inited |
517 | jnz .preboot_device_inited |
514 | if defined extended_primary_loader |
518 | if defined extended_primary_loader |
515 | inc byte [di] |
519 | inc byte [di] |
516 | cmp byte [bootdevice], 'f' ; floppy? |
520 | cmp byte [bootdevice], 'f' ; floppy? |
517 | jz .preboot_device_inited |
521 | jz .preboot_device_inited |
518 | inc byte [di] |
522 | inc byte [di] |
519 | else |
523 | else |
520 | cmp [.loader_block], -1 |
524 | cmp [.loader_block], -1 |
521 | jz @f |
525 | jz @f |
522 | les bx, [.loader_block] |
526 | les bx, [.loader_block] |
523 | test byte [es:bx+1], 1 |
527 | test byte [es:bx+1], 1 |
524 | jz @f |
528 | jz @f |
525 | mov byte [di], 3 |
529 | mov byte [di], 3 |
526 | jmp .preboot_device_inited |
530 | jmp .preboot_device_inited |
527 | @@: |
531 | @@: |
528 | ; otherwise, set [preboot_device] to 1 (default value - boot from floppy) |
532 | ; otherwise, set [preboot_device] to 1 (default value - boot from floppy) |
529 | mov byte [di], 1 |
533 | mov byte [di], 1 |
530 | end if |
534 | end if |
531 | .preboot_device_inited: |
535 | .preboot_device_inited: |
532 | ; following 4 lines set variables to 1 if its current value is 0 |
536 | ; following 4 lines set variables to 1 if its current value is 0 |
533 | cmp byte [di+preboot_dma-preboot_device], 1 |
537 | cmp byte [di+preboot_dma-preboot_device], 1 |
534 | adc byte [di+preboot_dma-preboot_device], 0 |
538 | adc byte [di+preboot_dma-preboot_device], 0 |
535 | cmp byte [di+preboot_launcher-preboot_device], 1 ; Start LAUNCHER by default |
539 | cmp byte [di+preboot_launcher-preboot_device], 1 ; Start LAUNCHER by default |
536 | adc byte [di+preboot_launcher-preboot_device], 0 |
540 | adc byte [di+preboot_launcher-preboot_device], 0 |
537 | _setcursor 5,2 |
541 | _setcursor 5,2 |
538 | 542 | ||
539 | mov si, linef |
543 | mov si, linef |
540 | call printplain |
544 | call printplain |
541 | mov si, start_msg |
545 | mov si, start_msg |
542 | call print |
546 | call print |
543 | mov si, time_msg |
547 | mov si, time_msg |
544 | call print |
548 | call print |
545 | ; get start time |
549 | ; get start time |
546 | call .gettime |
550 | call .gettime |
547 | mov [.starttime], eax |
551 | mov [.starttime], eax |
548 | mov word [.timer], .newtimer |
552 | mov word [.timer], .newtimer |
549 | mov word [.timer+2], cs |
553 | mov word [.timer+2], cs |
550 | .printcfg: |
554 | .printcfg: |
551 | 555 | ||
552 | _setcursor 9,0 |
556 | _setcursor 9,0 |
553 | mov si, current_cfg_msg |
557 | mov si, current_cfg_msg |
554 | call print |
558 | call print |
555 | mov si, curvideo_msg |
559 | mov si, curvideo_msg |
556 | call print |
560 | call print |
557 | 561 | ||
558 | call draw_current_vmode |
562 | call draw_current_vmode |
559 | 563 | ||
560 | mov si, usebd_msg |
564 | mov si, usebd_msg |
561 | cmp [preboot_biosdisk], 1 |
565 | cmp [preboot_biosdisk], 1 |
562 | call .say_on_off |
566 | call .say_on_off |
563 | mov si, debug_mode_msg |
567 | mov si, debug_mode_msg |
564 | cmp [preboot_debug], 1 |
568 | cmp [preboot_debug], 1 |
565 | call .say_on_off |
569 | call .say_on_off |
566 | mov si, launcher_msg |
570 | mov si, launcher_msg |
567 | cmp [preboot_launcher], 1 |
571 | cmp [preboot_launcher], 1 |
568 | call .say_on_off |
572 | call .say_on_off |
569 | mov si, preboot_device_msg |
573 | mov si, preboot_device_msg |
570 | call print |
574 | call print |
571 | mov al, [preboot_device] |
575 | mov al, [preboot_device] |
572 | if defined extended_primary_loader |
576 | if defined extended_primary_loader |
573 | and eax, 3 |
577 | and eax, 3 |
574 | else |
578 | else |
575 | and eax, 7 |
579 | and eax, 7 |
576 | end if |
580 | end if |
577 | mov si, [preboot_device_msgs+eax*2] |
581 | mov si, [preboot_device_msgs+eax*2] |
578 | call printplain |
582 | call printplain |
579 | .show_remarks: |
583 | .show_remarks: |
580 | ; show remarks in gray color |
584 | ; show remarks in gray color |
581 | mov di, ((21-num_remarks)*80 + 2)*2 |
585 | mov di, ((21-num_remarks)*80 + 2)*2 |
582 | push 0xB800 |
586 | push 0xB800 |
583 | pop es |
587 | pop es |
584 | mov cx, num_remarks |
588 | mov cx, num_remarks |
585 | mov si, remarks |
589 | mov si, remarks |
586 | .write_remarks: |
590 | .write_remarks: |
587 | lodsw |
591 | lodsw |
588 | push si |
592 | push si |
589 | xchg ax, si |
593 | xchg ax, si |
590 | mov ah, 1*16+7 ; background: blue (1), foreground: gray (7) |
594 | mov ah, 1*16+7 ; background: blue (1), foreground: gray (7) |
591 | push di |
595 | push di |
592 | .write_remark: |
596 | .write_remark: |
593 | lodsb |
597 | lodsb |
594 | test al, al |
598 | test al, al |
595 | jz @f |
599 | jz @f |
596 | stosw |
600 | stosw |
597 | jmp .write_remark |
601 | jmp .write_remark |
598 | @@: |
602 | @@: |
599 | pop di |
603 | pop di |
600 | pop si |
604 | pop si |
601 | add di, 80*2 |
605 | add di, 80*2 |
602 | loop .write_remarks |
606 | loop .write_remarks |
603 | .wait: |
607 | .wait: |
604 | _setcursor 25,0 ; out of screen |
608 | _setcursor 25,0 ; out of screen |
605 | ; set timer interrupt handler |
609 | ; set timer interrupt handler |
606 | cli |
610 | cli |
607 | push 0 |
611 | push 0 |
608 | pop es |
612 | pop es |
609 | push dword [es:8*4] |
613 | push dword [es:8*4] |
610 | pop dword [.oldtimer] |
614 | pop dword [.oldtimer] |
611 | push dword [.timer] |
615 | push dword [.timer] |
612 | pop dword [es:8*4] |
616 | pop dword [es:8*4] |
613 | ; mov eax, [es:8*4] |
617 | ; mov eax, [es:8*4] |
614 | ; mov [.oldtimer], eax |
618 | ; mov [.oldtimer], eax |
615 | ; mov eax, [.timer] |
619 | ; mov eax, [.timer] |
616 | ; mov [es:8*4], eax |
620 | ; mov [es:8*4], eax |
617 | sti |
621 | sti |
618 | ; wait for keypressed |
622 | ; wait for keypressed |
619 | xor ax, ax |
623 | xor ax, ax |
620 | int 16h |
624 | int 16h |
621 | push ax |
625 | push ax |
622 | ; restore timer interrupt |
626 | ; restore timer interrupt |
623 | ; push 0 |
627 | ; push 0 |
624 | ; pop es |
628 | ; pop es |
625 | mov eax, [.oldtimer] |
629 | mov eax, [.oldtimer] |
626 | mov [es:8*4], eax |
630 | mov [es:8*4], eax |
627 | mov [.timer], eax |
631 | mov [.timer], eax |
628 | 632 | ||
629 | _setcursor 7,0 |
633 | _setcursor 7,0 |
630 | mov si, space_msg |
634 | mov si, space_msg |
631 | call printplain |
635 | call printplain |
632 | ; clear remarks and restore normal attributes |
636 | ; clear remarks and restore normal attributes |
633 | push es |
637 | push es |
634 | mov di, ((21-num_remarks)*80 + 2)*2 |
638 | mov di, ((21-num_remarks)*80 + 2)*2 |
635 | push 0xB800 |
639 | push 0xB800 |
636 | pop es |
640 | pop es |
637 | mov cx, num_remarks |
641 | mov cx, num_remarks |
638 | mov ax, ' ' + (1*16 + 15)*100h |
642 | mov ax, ' ' + (1*16 + 15)*100h |
639 | @@: |
643 | @@: |
640 | push cx |
644 | push cx |
641 | mov cx, 76 |
645 | mov cx, 76 |
642 | rep stosw |
646 | rep stosw |
643 | pop cx |
647 | pop cx |
644 | add di, 4*2 |
648 | add di, 4*2 |
645 | loop @b |
649 | loop @b |
646 | pop es |
650 | pop es |
647 | pop ax |
651 | pop ax |
648 | ; switch on key |
652 | ; switch on key |
649 | cmp al, 13 |
653 | cmp al, 13 |
650 | jz .continue |
654 | jz .continue |
651 | or al, 20h |
655 | or al, 20h |
652 | cmp al, 'a' ; select graphical mode |
656 | cmp al, 'a' ; select graphical mode |
653 | jz .change_a |
657 | jz .change_a |
654 | cmp al, 'q' ; Trick to make 'A' key on azerty keyboard work |
658 | cmp al, 'q' ; Trick to make 'A' key on azerty keyboard work |
655 | je .change_a |
659 | je .change_a |
656 | cmp al, 'b' ; use BIOS disks? // (selecting YES will make BIOS disks visible as /bd) |
660 | cmp al, 'b' ; use BIOS disks? // (selecting YES will make BIOS disks visible as /bd) |
657 | jz .change_b |
661 | jz .change_b |
658 | cmp al, 'c' ; load kernel in debug mode? |
662 | cmp al, 'c' ; load kernel in debug mode? |
659 | jz .change_c |
663 | jz .change_c |
660 | cmp al, 'd' ; start launcher after kernel is loaded? |
664 | cmp al, 'd' ; start launcher after kernel is loaded? |
661 | jz .change_d |
665 | jz .change_d |
662 | cmp al, 'e' ; select boot origin |
666 | cmp al, 'e' ; select boot origin |
663 | jnz .show_remarks |
667 | jnz .show_remarks |
664 | ; e) preboot_device = from where to boot? |
668 | ; e) preboot_device = from where to boot? |
665 | if defined extended_primary_loader |
669 | if defined extended_primary_loader |
666 | _ask_question bdev,'12',preboot_device ; range accepted for answer: 1-2 |
670 | _ask_question bdev,'12',preboot_device ; range accepted for answer: 1-2 |
667 | else |
671 | else |
668 | _ask_question bdev,'14',preboot_device ; range accepted for answer: 1-4 |
672 | _ask_question bdev,'14',preboot_device ; range accepted for answer: 1-4 |
669 | end if |
673 | end if |
670 | _setcursor 14,0 |
674 | _setcursor 14,0 |
671 | 675 | ||
672 | .d: |
676 | .d: |
673 | if ~ defined extended_primary_loader |
677 | if ~ defined extended_primary_loader |
674 | mov [.bSettingsChanged], 1 |
678 | mov [.bSettingsChanged], 1 |
675 | end if |
679 | end if |
676 | .esc_pressed: |
680 | .esc_pressed: |
677 | call clear_vmodes_table ;clear vmodes_table |
681 | call clear_vmodes_table ;clear vmodes_table |
678 | jmp .printcfg |
682 | jmp .printcfg |
679 | 683 | ||
680 | .change_a: |
684 | .change_a: |
681 | call clear_vmodes_table ;clear vmodes_table |
685 | call clear_vmodes_table ;clear vmodes_table |
682 | 686 | ||
683 | mov si, word [cursor_pos] |
687 | mov si, word [cursor_pos] |
684 | mov word [cursor_pos_old], si |
688 | mov word [cursor_pos_old], si |
685 | .loops: |
689 | .loops: |
686 | call draw_vmodes_table |
690 | call draw_vmodes_table |
687 | _setcursor 25,0 ; out of screen |
691 | _setcursor 25,0 ; out of screen |
688 | xor ax, ax |
692 | xor ax, ax |
689 | int 0x16 |
693 | int 0x16 |
690 | ; call clear_table_cursor ;clear current position of cursor |
694 | ; call clear_table_cursor ;clear current position of cursor |
691 | 695 | ||
692 | mov si, word [cursor_pos] |
696 | mov si, word [cursor_pos] |
693 | 697 | ||
694 | cmp al, 27 ; If ESC was pressed, do not change the value |
698 | cmp al, 27 ; If ESC was pressed, do not change the value |
695 | jnz @f ; Just exit the resolution selection box |
699 | jnz @f ; Just exit the resolution selection box |
696 | 700 | ||
697 | mov si, word [cursor_pos_old] |
701 | mov si, word [cursor_pos_old] |
698 | mov word [cursor_pos], si |
702 | mov word [cursor_pos], si |
699 | jmp .esc_pressed |
703 | jmp .esc_pressed |
700 | @@: |
704 | @@: |
701 | cmp ah, 0x48;x,0x48E0 ; up |
705 | cmp ah, 0x48;x,0x48E0 ; up |
702 | jne .down |
706 | jne .down |
703 | cmp si, modes_table |
707 | cmp si, modes_table |
704 | jbe .loops |
708 | jbe .loops |
705 | sub word [cursor_pos], size_of_step |
709 | sub word [cursor_pos], size_of_step |
706 | jmp .loops |
710 | jmp .loops |
707 | 711 | ||
708 | .down: |
712 | .down: |
709 | cmp ah, 0x50;x,0x50E0 ; down |
713 | cmp ah, 0x50;x,0x50E0 ; down |
710 | jne .pgup |
714 | jne .pgup |
711 | cmp word[es:si+10], -1 |
715 | cmp word[es:si+10], -1 |
712 | je .loops |
716 | je .loops |
713 | add word [cursor_pos], size_of_step |
717 | add word [cursor_pos], size_of_step |
714 | jmp .loops |
718 | jmp .loops |
715 | 719 | ||
716 | .pgup: |
720 | .pgup: |
717 | cmp ah, 0x49 ; page up |
721 | cmp ah, 0x49 ; page up |
718 | jne .pgdn |
722 | jne .pgdn |
719 | sub si, size_of_step*long_v_table |
723 | sub si, size_of_step*long_v_table |
720 | cmp si, modes_table |
724 | cmp si, modes_table |
721 | jae @f |
725 | jae @f |
722 | mov si, modes_table |
726 | mov si, modes_table |
723 | @@: |
727 | @@: |
724 | mov word [cursor_pos], si |
728 | mov word [cursor_pos], si |
725 | mov si, word [home_cursor] |
729 | mov si, word [home_cursor] |
726 | sub si, size_of_step*long_v_table |
730 | sub si, size_of_step*long_v_table |
727 | cmp si, modes_table |
731 | cmp si, modes_table |
728 | jae @f |
732 | jae @f |
729 | mov si, modes_table |
733 | mov si, modes_table |
730 | @@: |
734 | @@: |
731 | mov word [home_cursor], si |
735 | mov word [home_cursor], si |
732 | jmp .loops |
736 | jmp .loops |
733 | 737 | ||
734 | .pgdn: |
738 | .pgdn: |
735 | cmp ah, 0x51 ; page down |
739 | cmp ah, 0x51 ; page down |
736 | jne .enter |
740 | jne .enter |
737 | mov ax, [end_cursor] |
741 | mov ax, [end_cursor] |
738 | add si, size_of_step*long_v_table |
742 | add si, size_of_step*long_v_table |
739 | cmp si, ax |
743 | cmp si, ax |
740 | jb @f |
744 | jb @f |
741 | mov si, ax |
745 | mov si, ax |
742 | sub si, size_of_step |
746 | sub si, size_of_step |
743 | @@: |
747 | @@: |
744 | mov word [cursor_pos], si |
748 | mov word [cursor_pos], si |
745 | mov si, word [home_cursor] |
749 | mov si, word [home_cursor] |
746 | sub ax, size_of_step*long_v_table |
750 | sub ax, size_of_step*long_v_table |
747 | add si, size_of_step*long_v_table |
751 | add si, size_of_step*long_v_table |
748 | cmp si, ax |
752 | cmp si, ax |
749 | jb @f |
753 | jb @f |
750 | mov si, ax |
754 | mov si, ax |
751 | @@: |
755 | @@: |
752 | mov word [home_cursor], si |
756 | mov word [home_cursor], si |
753 | jmp .loops |
757 | jmp .loops |
754 | 758 | ||
755 | .enter: |
759 | .enter: |
756 | cmp al, 0x0D;x,0x1C0D ; enter |
760 | cmp al, 0x0D;x,0x1C0D ; enter |
757 | jne .loops |
761 | jne .loops |
758 | push word [cursor_pos] |
762 | push word [cursor_pos] |
759 | pop bp |
763 | pop bp |
760 | push word [es:bp] |
764 | push word [es:bp] |
761 | pop word [x_save] |
765 | pop word [x_save] |
762 | push word [es:bp+2] |
766 | push word [es:bp+2] |
763 | pop word [y_save] |
767 | pop word [y_save] |
764 | push word [es:bp+6] |
768 | push word [es:bp+6] |
765 | pop word [number_vm] |
769 | pop word [number_vm] |
766 | mov word [preboot_graph], bp ;save choose |
770 | mov word [preboot_graph], bp ;save choose |
767 | 771 | ||
768 | jmp .d |
772 | jmp .d |
769 | 773 | ||
770 | .change_b: ; b) preboot_biosdisk = use BIOS disks through V86 emulation? |
774 | .change_b: ; b) preboot_biosdisk = use BIOS disks through V86 emulation? |
771 | ; _setcursor 16,0 |
775 | ; _setcursor 16,0 |
772 | ; mov si, ask_dma // (earlier was: preboot_dma = use DMA access?) |
776 | ; mov si, ask_dma // (earlier was: preboot_dma = use DMA access?) |
773 | ; call print |
777 | ; call print |
774 | ; mov bx, '13' ; range accepted for answer: 1-3 |
778 | ; mov bx, '13' ; range accepted for answer: 1-3 |
775 | ; call getkey |
779 | ; call getkey |
776 | ; mov [preboot_dma], al |
780 | ; mov [preboot_dma], al |
777 | _ask_question ask_bd,'12',preboot_biosdisk ; range accepted for answer: 1-2 |
781 | _ask_question ask_bd,'12',preboot_biosdisk ; range accepted for answer: 1-2 |
778 | _setcursor 11,0 |
782 | _setcursor 11,0 |
779 | jmp .d |
783 | jmp .d |
780 | .change_c: ; c) preboot_debug = duplicates kernel debug output to the screen |
784 | .change_c: ; c) preboot_debug = duplicates kernel debug output to the screen |
781 | _ask_question ask_debug,'12',preboot_debug ; range accepted for answer: 1-2 |
785 | _ask_question ask_debug,'12',preboot_debug ; range accepted for answer: 1-2 |
782 | _setcursor 12,0 |
786 | _setcursor 12,0 |
783 | jmp .d |
787 | jmp .d |
784 | .change_d: ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
788 | .change_d: ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
785 | _ask_question ask_launcher,'12',preboot_launcher ; range accepted for answer: 1-2 |
789 | _ask_question ask_launcher,'12',preboot_launcher ; range accepted for answer: 1-2 |
786 | _setcursor 13,0 |
790 | _setcursor 13,0 |
787 | jmp .d |
791 | jmp .d |
788 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
792 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
789 | .say_on_off: |
793 | .say_on_off: |
790 | pushf |
794 | pushf |
791 | call print |
795 | call print |
792 | mov si, on_msg |
796 | mov si, on_msg |
793 | popf |
797 | popf |
794 | jz @f |
798 | jz @f |
795 | mov si, off_msg |
799 | mov si, off_msg |
796 | @@: |
800 | @@: |
797 | jmp printplain |
801 | jmp printplain |
798 | ; novesa and vervesa strings are not used at the moment of executing this code |
802 | ; novesa and vervesa strings are not used at the moment of executing this code |
799 | virtual at novesa |
803 | virtual at novesa |
800 | .oldtimer dd ? |
804 | .oldtimer dd ? |
801 | .starttime dd ? |
805 | .starttime dd ? |
802 | if ~ defined extended_primary_loader |
806 | if ~ defined extended_primary_loader |
803 | .bSettingsChanged db ? |
807 | .bSettingsChanged db ? |
804 | end if |
808 | end if |
805 | .timer dd ? |
809 | .timer dd ? |
806 | end virtual |
810 | end virtual |
807 | if ~ defined extended_primary_loader |
811 | if ~ defined extended_primary_loader |
808 | .loader_block dd -1 |
812 | .loader_block dd -1 |
809 | end if |
813 | end if |
810 | .gettime: |
814 | .gettime: |
811 | mov ah, 0 |
815 | mov ah, 0 |
812 | int 1Ah |
816 | int 1Ah |
813 | xchg ax, cx |
817 | xchg ax, cx |
814 | shl eax, 10h |
818 | shl eax, 10h |
815 | xchg ax, dx |
819 | xchg ax, dx |
816 | ret |
820 | ret |
817 | .newtimer: |
821 | .newtimer: |
818 | push ds |
822 | push ds |
819 | push cs |
823 | push cs |
820 | pop ds |
824 | pop ds |
821 | pushf |
825 | pushf |
822 | call [.oldtimer] |
826 | call [.oldtimer] |
823 | pushad |
827 | pushad |
824 | call .gettime |
828 | call .gettime |
825 | sub eax, [.starttime] |
829 | sub eax, [.starttime] |
826 | if defined extended_primary_loader |
830 | if defined extended_primary_loader |
827 | sub ax, [preboot_timeout] |
831 | sub ax, [preboot_timeout] |
828 | else |
832 | else |
829 | sub ax, 18*5 |
833 | sub ax, 18*5 |
830 | end if |
834 | end if |
831 | jae .timergo |
835 | jae .timergo |
832 | neg ax |
836 | neg ax |
833 | add ax, 18-1 |
837 | add ax, 18-1 |
834 | mov bx, 18 |
838 | mov bx, 18 |
835 | xor dx, dx |
839 | xor dx, dx |
836 | div bx |
840 | div bx |
837 | if lang eq ru |
841 | if lang eq ru |
838 | ; подождите 5 секунд, 4/3/2 секунды, 1 секунду |
842 | ; подождите 5 секунд, 4/3/2 секунды, 1 секунду |
839 | cmp al, 5 |
843 | cmp al, 5 |
840 | mov cl, ' ' |
844 | mov cl, ' ' |
841 | jae @f |
845 | jae @f |
842 | cmp al, 1 |
846 | cmp al, 1 |
843 | mov cl, 0xE3 ; 'у' in cp866 |
847 | mov cl, 0xE3 ; 'у' in cp866 |
844 | jz @f |
848 | jz @f |
845 | mov cl, 0xEB ; 'ы' in cp866 |
849 | mov cl, 0xEB ; 'ы' in cp866 |
846 | @@: |
850 | @@: |
847 | mov [time_str+9], cl |
851 | mov [time_str+9], cl |
848 | else if lang eq et |
852 | else if lang eq et |
849 | cmp al, 1 |
853 | cmp al, 1 |
850 | ja @f |
854 | ja @f |
851 | mov byte [time_str+9], ' ' |
855 | mov byte [time_str+9], ' ' |
852 | mov byte [time_str+10], ' ' |
856 | mov byte [time_str+10], ' ' |
853 | @@: |
857 | @@: |
854 | else if lang eq sp |
858 | else if lang eq sp |
855 | ; esperar 5/4/3/2 segundos, 1 segundo |
859 | ; esperar 5/4/3/2 segundos, 1 segundo |
856 | cmp al, 1 |
860 | cmp al, 1 |
857 | mov cl, 's' |
861 | mov cl, 's' |
858 | ja @f |
862 | ja @f |
859 | mov cl, ' ' |
863 | mov cl, ' ' |
860 | @@: |
864 | @@: |
861 | mov [time_str+10], cl |
865 | mov [time_str+10], cl |
862 | else |
866 | else |
863 | ; wait 5/4/3/2 seconds, 1 second |
867 | ; wait 5/4/3/2 seconds, 1 second |
864 | cmp al, 1 |
868 | cmp al, 1 |
865 | mov cl, 's' |
869 | mov cl, 's' |
866 | ja @f |
870 | ja @f |
867 | mov cl, ' ' |
871 | mov cl, ' ' |
868 | @@: |
872 | @@: |
869 | mov [time_str+9], cl |
873 | mov [time_str+9], cl |
870 | end if |
874 | end if |
871 | add al, '0' |
875 | add al, '0' |
872 | mov [time_str+1], al |
876 | mov [time_str+1], al |
873 | mov si, time_msg |
877 | mov si, time_msg |
874 | _setcursor 7,0 |
878 | _setcursor 7,0 |
875 | call print |
879 | call print |
876 | _setcursor 25,0 |
880 | _setcursor 25,0 |
877 | popad |
881 | popad |
878 | pop ds |
882 | pop ds |
879 | iret |
883 | iret |
880 | .timergo: |
884 | .timergo: |
881 | push 0 |
885 | push 0 |
882 | pop es |
886 | pop es |
883 | mov eax, [.oldtimer] |
887 | mov eax, [.oldtimer] |
884 | mov [es:8*4], eax |
888 | mov [es:8*4], eax |
885 | mov sp, 0EC00h |
889 | mov sp, 0EC00h |
886 | .continue: |
890 | .continue: |
887 | sti |
891 | sti |
888 | _setcursor 6,0 |
892 | _setcursor 6,0 |
889 | mov si, space_msg |
893 | mov si, space_msg |
890 | call printplain |
894 | call printplain |
891 | call printplain |
895 | call printplain |
892 | _setcursor 6,0 |
896 | _setcursor 6,0 |
893 | mov si, loading_msg |
897 | mov si, loading_msg |
894 | call print |
898 | call print |
895 | _setcursor 16,0 |
899 | _setcursor 16,0 |
896 | if ~ defined extended_primary_loader |
900 | if ~ defined extended_primary_loader |
897 | cmp [.bSettingsChanged], 0 |
901 | cmp [.bSettingsChanged], 0 |
898 | jz .load |
902 | jz .load |
899 | cmp [.loader_block], -1 |
903 | cmp [.loader_block], -1 |
900 | jz .load |
904 | jz .load |
901 | les bx, [.loader_block] |
905 | les bx, [.loader_block] |
902 | mov eax, [es:bx+3] |
906 | mov eax, [es:bx+3] |
903 | push ds |
907 | push ds |
904 | pop es |
908 | pop es |
905 | test eax, eax |
909 | test eax, eax |
906 | jz .load |
910 | jz .load |
907 | push eax |
911 | push eax |
908 | mov si, save_quest |
912 | mov si, save_quest |
909 | call print |
913 | call print |
910 | .waityn: |
914 | .waityn: |
911 | mov ah, 0 |
915 | mov ah, 0 |
912 | int 16h |
916 | int 16h |
913 | or al, 20h |
917 | or al, 20h |
914 | cmp al, 'n' |
918 | cmp al, 'n' |
915 | jz .loadc |
919 | jz .loadc |
916 | if lang eq sp |
920 | if lang eq sp |
917 | cmp al, 's' |
921 | cmp al, 's' |
918 | else |
922 | else |
919 | cmp al, 'y' |
923 | cmp al, 'y' |
920 | end if |
924 | end if |
921 | jnz .waityn |
925 | jnz .waityn |
922 | call putchar |
926 | call putchar |
923 | mov byte [space_msg+80], 186 |
927 | mov byte [space_msg+80], 186 |
924 | 928 | ||
925 | pop eax |
929 | pop eax |
926 | push cs |
930 | push cs |
927 | push .cont |
931 | push .cont |
928 | push eax |
932 | push eax |
929 | retf ;call back |
933 | retf ;call back |
930 | .loadc: |
934 | .loadc: |
931 | pop eax |
935 | pop eax |
932 | .cont: |
936 | .cont: |
933 | push cs |
937 | push cs |
934 | pop ds |
938 | pop ds |
935 | mov si, space_msg |
939 | mov si, space_msg |
936 | mov byte [si+80], 0 |
940 | mov byte [si+80], 0 |
937 | _setcursor 16,0 |
941 | _setcursor 16,0 |
938 | call printplain |
942 | call printplain |
939 | _setcursor 16,0 |
943 | _setcursor 16,0 |
940 | .load: |
944 | .load: |
941 | end if |
945 | end if |
942 | ; \end{diamond}[02.12.2005] |
946 | ; \end{diamond}[02.12.2005] |
943 | 947 | ||
944 | ; ASK GRAPHICS MODE |
948 | ; ASK GRAPHICS MODE |
945 | 949 | ||
946 | call set_vmode |
950 | call set_vmode |
947 | 951 | ||
948 | ; GRAPHICS ACCELERATION |
952 | ; GRAPHICS ACCELERATION |
949 | ; force yes |
953 | ; force yes |
950 | mov [es:BOOT_MTRR], byte 1 |
954 | mov [es:BOOT_MTRR], byte 1 |
951 | 955 | ||
952 | ; DMA ACCESS TO HD |
956 | ; DMA ACCESS TO HD |
953 | 957 | ||
954 | mov al, [preboot_dma] |
958 | mov al, [preboot_dma] |
955 | mov [es:BOOT_DMA], al |
959 | mov [es:BOOT_DMA], al |
956 | 960 | ||
957 | ; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen. |
961 | ; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen. |
958 | mov al, [preboot_debug] |
962 | mov al, [preboot_debug] |
959 | mov [es:BOOT_DEBUG_PRINT], al ;// 0x901E |
963 | mov [es:BOOT_DEBUG_PRINT], al ;// 0x901E |
960 | 964 | ||
961 | ; Start the first app (right now it's LAUNCHER) after kernel is loaded? |
965 | ; Start the first app (right now it's LAUNCHER) after kernel is loaded? |
962 | mov al, [preboot_launcher] |
966 | mov al, [preboot_launcher] |
963 | mov [es:BOOT_LAUNCHER_START], al ;// 0x901D |
967 | mov [es:BOOT_LAUNCHER_START], al ;// 0x901D |
964 | 968 | ||
965 | ; BOOT DEVICE |
969 | ; BOOT DEVICE |
966 | 970 | ||
967 | mov al, [preboot_device] |
971 | mov al, [preboot_device] |
968 | dec al |
972 | dec al |
969 | mov [boot_dev], al |
973 | mov [es:BOOT_DEV], al |
970 | 974 | ||
971 | ; GET MEMORY MAP |
975 | ; GET MEMORY MAP |
972 | include '../detect/biosmem.inc' |
976 | include '../detect/biosmem.inc' |
973 | 977 | ||
974 | ; READ DISKETTE TO MEMORY |
978 | ; READ DISKETTE TO MEMORY |
975 | 979 | ||
976 | cmp [boot_dev], 0 |
980 | cmp byte [es:BOOT_DEV], 0 |
977 | jne no_sys_on_floppy |
981 | jne no_sys_on_floppy |
978 | mov si, diskload |
982 | mov si, diskload |
979 | call print |
983 | call print |
980 | xor ax, ax ; reset drive |
984 | xor ax, ax ; reset drive |
981 | xor dx, dx |
985 | xor dx, dx |
982 | int 0x13 |
986 | int 0x13 |
983 | ; do we boot from CD-ROM? |
987 | ; do we boot from CD-ROM? |
984 | mov ah, 41h |
988 | mov ah, 41h |
985 | mov bx, 55AAh |
989 | mov bx, 55AAh |
986 | xor dx, dx |
990 | xor dx, dx |
987 | int 0x13 |
991 | int 0x13 |
988 | jc .nocd |
992 | jc .nocd |
989 | cmp bx, 0AA55h |
993 | cmp bx, 0AA55h |
990 | jnz .nocd |
994 | jnz .nocd |
991 | mov ah, 48h |
995 | mov ah, 48h |
992 | push ds |
996 | push ds |
993 | push es |
997 | push es |
994 | pop ds |
998 | pop ds |
995 | mov si, 0xa000 |
999 | mov si, 0xa000 |
996 | mov word [si], 30 |
1000 | mov word [si], 30 |
997 | int 0x13 |
1001 | int 0x13 |
998 | pop ds |
1002 | pop ds |
999 | jc .nocd |
1003 | jc .nocd |
1000 | push ds |
1004 | push ds |
1001 | lds si, [es:si+26] |
1005 | lds si, [es:si+26] |
1002 | test byte [ds:si+10], 40h |
1006 | test byte [ds:si+10], 40h |
1003 | pop ds |
1007 | pop ds |
1004 | jz .nocd |
1008 | jz .nocd |
1005 | ; yes - read all floppy by 18 sectors |
1009 | ; yes - read all floppy by 18 sectors |
1006 | 1010 | ||
1007 | ; TODO: !!!! read only first sector and set variables !!!!! |
1011 | ; TODO: !!!! read only first sector and set variables !!!!! |
1008 | ; ... |
1012 | ; ... |
1009 | ; TODO: !!! then read flippy image track by track |
1013 | ; TODO: !!! then read flippy image track by track |
1010 | 1014 | ||
1011 | mov cx, 0x0001 ; startcyl,startsector |
1015 | mov cx, 0x0001 ; startcyl,startsector |
1012 | .a1: |
1016 | .a1: |
1013 | push cx dx |
1017 | push cx dx |
1014 | mov al, 18 |
1018 | mov al, 18 |
1015 | mov bx, 0xa000 |
1019 | mov bx, 0xa000 |
1016 | call boot_read_floppy |
1020 | call boot_read_floppy |
1017 | mov si, movedesc |
1021 | mov si, movedesc |
1018 | push es |
1022 | push es |
1019 | push ds |
1023 | push ds |
1020 | pop es |
1024 | pop es |
1021 | mov cx, 256*18 |
1025 | mov cx, 256*18 |
1022 | mov ah, 0x87 |
1026 | mov ah, 0x87 |
1023 | int 0x15 |
1027 | int 0x15 |
1024 | pop es |
1028 | pop es |
1025 | pop dx cx |
1029 | pop dx cx |
1026 | test ah, ah |
1030 | test ah, ah |
1027 | jnz sayerr_floppy |
1031 | jnz sayerr_floppy |
1028 | add dword [si+8*3+2], 512*18 |
1032 | add dword [si+8*3+2], 512*18 |
1029 | inc dh |
1033 | inc dh |
1030 | cmp dh, 2 |
1034 | cmp dh, 2 |
1031 | jnz .a1 |
1035 | jnz .a1 |
1032 | mov dh, 0 |
1036 | mov dh, 0 |
1033 | inc ch |
1037 | inc ch |
1034 | cmp ch, 80 |
1038 | cmp ch, 80 |
1035 | jae ok_sys_on_floppy |
1039 | jae ok_sys_on_floppy |
1036 | pusha |
1040 | pusha |
1037 | mov al, ch |
1041 | mov al, ch |
1038 | shr ch, 2 |
1042 | shr ch, 2 |
1039 | add al, ch |
1043 | add al, ch |
1040 | aam |
1044 | aam |
1041 | xchg al, ah |
1045 | xchg al, ah |
1042 | add ax, '00' |
1046 | add ax, '00' |
1043 | mov si, pros |
1047 | mov si, pros |
1044 | mov [si], ax |
1048 | mov [si], ax |
1045 | call printplain |
1049 | call printplain |
1046 | popa |
1050 | popa |
1047 | jmp .a1 |
1051 | jmp .a1 |
1048 | .nocd: |
1052 | .nocd: |
1049 | ; no - read only used sectors from floppy |
1053 | ; no - read only used sectors from floppy |
1050 | ; now load floppy image to memory |
1054 | ; now load floppy image to memory |
1051 | ; at first load boot sector and first FAT table |
1055 | ; at first load boot sector and first FAT table |
1052 | 1056 | ||
1053 | ; read only first sector and fill variables |
1057 | ; read only first sector and fill variables |
1054 | mov cx, 0x0001 ; first logical sector |
1058 | mov cx, 0x0001 ; first logical sector |
1055 | xor dx, dx ; head = 0, drive = 0 (a:) |
1059 | xor dx, dx ; head = 0, drive = 0 (a:) |
1056 | mov al, 1 ; read one sector |
1060 | mov al, 1 ; read one sector |
1057 | mov bx, 0xB000 ; es:bx -> data area |
1061 | mov bx, 0xB000 ; es:bx -> data area |
1058 | call boot_read_floppy |
1062 | call boot_read_floppy |
1059 | ; fill the necessary parameters to work with a floppy |
1063 | ; fill the necessary parameters to work with a floppy |
1060 | mov ax, word [es:bx+24] |
1064 | mov ax, word [es:bx+24] |
1061 | mov word [BPB_SecPerTrk], ax |
1065 | mov word [BPB_SecPerTrk], ax |
1062 | mov ax, word [es:bx+26] |
1066 | mov ax, word [es:bx+26] |
1063 | mov word [BPB_NumHeads], ax |
1067 | mov word [BPB_NumHeads], ax |
1064 | mov ax, word [es:bx+17] |
1068 | mov ax, word [es:bx+17] |
1065 | mov word [BPB_RootEntCnt], ax |
1069 | mov word [BPB_RootEntCnt], ax |
1066 | mov ax, word [es:bx+14] |
1070 | mov ax, word [es:bx+14] |
1067 | mov word [BPB_RsvdSecCnt], ax |
1071 | mov word [BPB_RsvdSecCnt], ax |
1068 | mov ax, word [es:bx+19] |
1072 | mov ax, word [es:bx+19] |
1069 | mov word [BPB_TotSec16], ax |
1073 | mov word [BPB_TotSec16], ax |
1070 | mov al, byte [es:bx+13] |
1074 | mov al, byte [es:bx+13] |
1071 | mov byte [BPB_SecPerClus], al |
1075 | mov byte [BPB_SecPerClus], al |
1072 | mov al, byte [es:bx+16] |
1076 | mov al, byte [es:bx+16] |
1073 | mov byte [BPB_NumFATs], al |
1077 | mov byte [BPB_NumFATs], al |
1074 | ; |
1078 | ; |
1075 | mov ax, word [es:bx+22] |
1079 | mov ax, word [es:bx+22] |
1076 | mov word [BPB_FATSz16], ax |
1080 | mov word [BPB_FATSz16], ax |
1077 | mov cx, word [es:bx+11] |
1081 | mov cx, word [es:bx+11] |
1078 | mov word [BPB_BytsPerSec], cx |
1082 | mov word [BPB_BytsPerSec], cx |
1079 | 1083 | ||
1080 | ; count of clusters in FAT12 ((size_of_FAT*2)/3) |
1084 | ; count of clusters in FAT12 ((size_of_FAT*2)/3) |
1081 | ; mov ax, word [BPB_FATSz16] |
1085 | ; mov ax, word [BPB_FATSz16] |
1082 | ; mov cx, word [BPB_BytsPerSec] |
1086 | ; mov cx, word [BPB_BytsPerSec] |
1083 | ;end |
1087 | ;end |
1084 | xor dx, dx |
1088 | xor dx, dx |
1085 | mul cx |
1089 | mul cx |
1086 | shl ax, 1 |
1090 | shl ax, 1 |
1087 | mov cx, 3 |
1091 | mov cx, 3 |
1088 | div cx ; now ax - number of clusters in FAT12 |
1092 | div cx ; now ax - number of clusters in FAT12 |
1089 | mov word [end_of_FAT], ax |
1093 | mov word [end_of_FAT], ax |
1090 | 1094 | ||
1091 | ; load first FAT table |
1095 | ; load first FAT table |
1092 | mov cx, 0x0002 ; startcyl,startsector ; TODO!!!!! |
1096 | mov cx, 0x0002 ; startcyl,startsector ; TODO!!!!! |
1093 | xor dx, dx ; starthead,drive |
1097 | xor dx, dx ; starthead,drive |
1094 | mov al, byte [BPB_FATSz16] ; no of sectors to read |
1098 | mov al, byte [BPB_FATSz16] ; no of sectors to read |
1095 | add bx, word [BPB_BytsPerSec] ; es:bx -> data area |
1099 | add bx, word [BPB_BytsPerSec] ; es:bx -> data area |
1096 | call boot_read_floppy |
1100 | call boot_read_floppy |
1097 | mov bx, 0xB000 |
1101 | mov bx, 0xB000 |
1098 | 1102 | ||
1099 | ; and copy them to extended memory |
1103 | ; and copy them to extended memory |
1100 | mov si, movedesc |
1104 | mov si, movedesc |
1101 | mov [si+8*2+3], bh ; from |
1105 | mov [si+8*2+3], bh ; from |
1102 | 1106 | ||
1103 | mov ax, word [BPB_BytsPerSec] |
1107 | mov ax, word [BPB_BytsPerSec] |
1104 | shr ax, 1 ; words per sector |
1108 | shr ax, 1 ; words per sector |
1105 | mov cx, word [BPB_RsvdSecCnt] |
1109 | mov cx, word [BPB_RsvdSecCnt] |
1106 | add cx, word [BPB_FATSz16] |
1110 | add cx, word [BPB_FATSz16] |
1107 | mul cx |
1111 | mul cx |
1108 | push ax ; save to stack count of words in boot+FAT |
1112 | push ax ; save to stack count of words in boot+FAT |
1109 | xchg ax, cx |
1113 | xchg ax, cx |
1110 | 1114 | ||
1111 | push es |
1115 | push es |
1112 | push ds |
1116 | push ds |
1113 | pop es |
1117 | pop es |
1114 | mov ah, 0x87 |
1118 | mov ah, 0x87 |
1115 | int 0x15 |
1119 | int 0x15 |
1116 | pop es |
1120 | pop es |
1117 | test ah, ah |
1121 | test ah, ah |
1118 | jz @f |
1122 | jz @f |
1119 | sayerr_floppy: |
1123 | sayerr_floppy: |
1120 | mov dx, 0x3f2 |
1124 | mov dx, 0x3f2 |
1121 | mov al, 0 |
1125 | mov al, 0 |
1122 | out dx, al |
1126 | out dx, al |
1123 | sayerr_memmove: |
1127 | sayerr_memmove: |
1124 | mov si, memmovefailed |
1128 | mov si, memmovefailed |
1125 | jmp sayerr_plain |
1129 | jmp sayerr_plain |
1126 | @@: |
1130 | @@: |
1127 | pop ax ; restore from stack count of words in boot+FAT |
1131 | pop ax ; restore from stack count of words in boot+FAT |
1128 | shl ax, 1 ; make bytes count from count of words |
1132 | shl ax, 1 ; make bytes count from count of words |
1129 | and eax, 0ffffh |
1133 | and eax, 0ffffh |
1130 | add dword [si+8*3+2], eax |
1134 | add dword [si+8*3+2], eax |
1131 | 1135 | ||
1132 | ; copy first FAT to second copy |
1136 | ; copy first FAT to second copy |
1133 | ; TODO: BPB_NumFATs !!!!! |
1137 | ; TODO: BPB_NumFATs !!!!! |
1134 | add bx, word [BPB_BytsPerSec] ; !!! TODO: may be need multiply by BPB_RsvdSecCnt !!! |
1138 | add bx, word [BPB_BytsPerSec] ; !!! TODO: may be need multiply by BPB_RsvdSecCnt !!! |
1135 | mov byte [si+8*2+3], bh ; bx - begin of FAT |
1139 | mov byte [si+8*2+3], bh ; bx - begin of FAT |
1136 | 1140 | ||
1137 | mov ax, word [BPB_BytsPerSec] |
1141 | mov ax, word [BPB_BytsPerSec] |
1138 | shr ax, 1 ; words per sector |
1142 | shr ax, 1 ; words per sector |
1139 | mov cx, word [BPB_FATSz16] |
1143 | mov cx, word [BPB_FATSz16] |
1140 | mul cx |
1144 | mul cx |
1141 | mov cx, ax ; cx - count of words in FAT |
1145 | mov cx, ax ; cx - count of words in FAT |
1142 | 1146 | ||
1143 | push es |
1147 | push es |
1144 | push ds |
1148 | push ds |
1145 | pop es |
1149 | pop es |
1146 | mov ah, 0x87 |
1150 | mov ah, 0x87 |
1147 | int 0x15 |
1151 | int 0x15 |
1148 | pop es |
1152 | pop es |
1149 | test ah, ah |
1153 | test ah, ah |
1150 | jnz sayerr_floppy |
1154 | jnz sayerr_floppy |
1151 | 1155 | ||
1152 | mov ax, cx |
1156 | mov ax, cx |
1153 | shl ax, 1 |
1157 | shl ax, 1 |
1154 | and eax, 0ffffh ; ax - count of bytes in FAT |
1158 | and eax, 0ffffh ; ax - count of bytes in FAT |
1155 | add dword [si+8*3+2], eax |
1159 | add dword [si+8*3+2], eax |
1156 | 1160 | ||
1157 | ; reading RootDir |
1161 | ; reading RootDir |
1158 | ; TODO: BPB_NumFATs |
1162 | ; TODO: BPB_NumFATs |
1159 | add bx, ax |
1163 | add bx, ax |
1160 | add bx, 100h |
1164 | add bx, 100h |
1161 | and bx, 0ff00h ; bx - place in buffer to write RootDir |
1165 | and bx, 0ff00h ; bx - place in buffer to write RootDir |
1162 | push bx |
1166 | push bx |
1163 | 1167 | ||
1164 | mov bx, word [BPB_BytsPerSec] |
1168 | mov bx, word [BPB_BytsPerSec] |
1165 | shr bx, 5 ; divide bx by 32 |
1169 | shr bx, 5 ; divide bx by 32 |
1166 | mov ax, word [BPB_RootEntCnt] |
1170 | mov ax, word [BPB_RootEntCnt] |
1167 | xor dx, dx |
1171 | xor dx, dx |
1168 | div bx |
1172 | div bx |
1169 | push ax ; ax - count of RootDir sectors |
1173 | push ax ; ax - count of RootDir sectors |
1170 | 1174 | ||
1171 | mov ax, word [BPB_FATSz16] |
1175 | mov ax, word [BPB_FATSz16] |
1172 | xor cx, cx |
1176 | xor cx, cx |
1173 | mov cl, byte [BPB_NumFATs] |
1177 | mov cl, byte [BPB_NumFATs] |
1174 | mul cx |
1178 | mul cx |
1175 | add ax, word [BPB_RsvdSecCnt] ; ax - first sector of RootDir |
1179 | add ax, word [BPB_RsvdSecCnt] ; ax - first sector of RootDir |
1176 | 1180 | ||
1177 | mov word [FirstDataSector], ax |
1181 | mov word [FirstDataSector], ax |
1178 | pop bx |
1182 | pop bx |
1179 | push bx |
1183 | push bx |
1180 | add word [FirstDataSector], bx ; Begin of data region of floppy |
1184 | add word [FirstDataSector], bx ; Begin of data region of floppy |
1181 | 1185 | ||
1182 | ; read RootDir |
1186 | ; read RootDir |
1183 | call conv_abs_to_THS |
1187 | call conv_abs_to_THS |
1184 | pop ax |
1188 | pop ax |
1185 | pop bx ; place in buffer to write |
1189 | pop bx ; place in buffer to write |
1186 | push ax |
1190 | push ax |
1187 | call boot_read_floppy ; read RootDir into buffer |
1191 | call boot_read_floppy ; read RootDir into buffer |
1188 | ; copy RootDir |
1192 | ; copy RootDir |
1189 | mov byte [si+8*2+3], bh ; from buffer |
1193 | mov byte [si+8*2+3], bh ; from buffer |
1190 | pop ax ; ax = count of RootDir sectors |
1194 | pop ax ; ax = count of RootDir sectors |
1191 | mov cx, word [BPB_BytsPerSec] |
1195 | mov cx, word [BPB_BytsPerSec] |
1192 | mul cx |
1196 | mul cx |
1193 | shr ax, 1 |
1197 | shr ax, 1 |
1194 | mov cx, ax ; count of words to copy |
1198 | mov cx, ax ; count of words to copy |
1195 | push es |
1199 | push es |
1196 | push ds |
1200 | push ds |
1197 | pop es |
1201 | pop es |
1198 | mov ah, 0x87 |
1202 | mov ah, 0x87 |
1199 | int 0x15 |
1203 | int 0x15 |
1200 | pop es |
1204 | pop es |
1201 | 1205 | ||
1202 | mov ax, cx |
1206 | mov ax, cx |
1203 | shl ax, 1 |
1207 | shl ax, 1 |
1204 | and eax, 0ffffh ; ax - count of bytes in RootDir |
1208 | and eax, 0ffffh ; ax - count of bytes in RootDir |
1205 | add dword [si+8*3+2], eax ; add count of bytes copied |
1209 | add dword [si+8*3+2], eax ; add count of bytes copied |
1206 | 1210 | ||
1207 | ; Reading data clusters from floppy |
1211 | ; Reading data clusters from floppy |
1208 | mov byte [si+8*2+3], bh |
1212 | mov byte [si+8*2+3], bh |
1209 | push bx |
1213 | push bx |
1210 | 1214 | ||
1211 | mov di, 2 ; First data cluster |
1215 | mov di, 2 ; First data cluster |
1212 | .read_loop: |
1216 | .read_loop: |
1213 | mov bx, di |
1217 | mov bx, di |
1214 | shr bx, 1 ; bx+di = di*1.5 |
1218 | shr bx, 1 ; bx+di = di*1.5 |
1215 | jnc .even |
1219 | jnc .even |
1216 | test word [es:bx+di+0xB200], 0xFFF0 ; TODO: may not be 0xB200 !!! |
1220 | test word [es:bx+di+0xB200], 0xFFF0 ; TODO: may not be 0xB200 !!! |
1217 | jmp @f |
1221 | jmp @f |
1218 | .even: |
1222 | .even: |
1219 | test word [es:bx+di+0xB200], 0xFFF ; TODO: may not be 0xB200 !!! |
1223 | test word [es:bx+di+0xB200], 0xFFF ; TODO: may not be 0xB200 !!! |
1220 | 1224 | ||
1221 | @@: |
1225 | @@: |
1222 | jz .skip |
1226 | jz .skip |
1223 | ; read cluster di |
1227 | ; read cluster di |
1224 | ;.read: |
1228 | ;.read: |
1225 | ;conv cluster di to abs. sector ax |
1229 | ;conv cluster di to abs. sector ax |
1226 | ; ax = (N-2) * BPB_SecPerClus + FirstDataSector |
1230 | ; ax = (N-2) * BPB_SecPerClus + FirstDataSector |
1227 | mov ax, di |
1231 | mov ax, di |
1228 | sub ax, 2 |
1232 | sub ax, 2 |
1229 | xor bx, bx |
1233 | xor bx, bx |
1230 | mov bl, byte [BPB_SecPerClus] |
1234 | mov bl, byte [BPB_SecPerClus] |
1231 | mul bx |
1235 | mul bx |
1232 | add ax, word [FirstDataSector] |
1236 | add ax, word [FirstDataSector] |
1233 | call conv_abs_to_THS |
1237 | call conv_abs_to_THS |
1234 | pop bx |
1238 | pop bx |
1235 | push bx |
1239 | push bx |
1236 | mov al, byte [BPB_SecPerClus] ; number of sectors in cluster |
1240 | mov al, byte [BPB_SecPerClus] ; number of sectors in cluster |
1237 | call boot_read_floppy |
1241 | call boot_read_floppy |
1238 | push es |
1242 | push es |
1239 | push ds |
1243 | push ds |
1240 | pop es |
1244 | pop es |
1241 | pusha |
1245 | pusha |
1242 | ; |
1246 | ; |
1243 | mov ax, word [BPB_BytsPerSec] |
1247 | mov ax, word [BPB_BytsPerSec] |
1244 | xor cx, cx |
1248 | xor cx, cx |
1245 | mov cl, byte [BPB_SecPerClus] |
1249 | mov cl, byte [BPB_SecPerClus] |
1246 | mul cx |
1250 | mul cx |
1247 | shr ax, 1 ; ax = (BPB_BytsPerSec * BPB_SecPerClus)/2 |
1251 | shr ax, 1 ; ax = (BPB_BytsPerSec * BPB_SecPerClus)/2 |
1248 | mov cx, ax ; number of words to copy (count words in cluster) |
1252 | mov cx, ax ; number of words to copy (count words in cluster) |
1249 | ; |
1253 | ; |
1250 | mov ah, 0x87 |
1254 | mov ah, 0x87 |
1251 | int 0x15 ; copy data |
1255 | int 0x15 ; copy data |
1252 | test ah, ah |
1256 | test ah, ah |
1253 | popa |
1257 | popa |
1254 | pop es |
1258 | pop es |
1255 | jnz sayerr_floppy |
1259 | jnz sayerr_floppy |
1256 | ; skip cluster di |
1260 | ; skip cluster di |
1257 | .skip: |
1261 | .skip: |
1258 | mov ax, word [BPB_BytsPerSec] |
1262 | mov ax, word [BPB_BytsPerSec] |
1259 | xor cx, cx |
1263 | xor cx, cx |
1260 | mov cl, byte [BPB_SecPerClus] |
1264 | mov cl, byte [BPB_SecPerClus] |
1261 | mul cx |
1265 | mul cx |
1262 | and eax, 0ffffh ; ax - count of bytes in cluster |
1266 | and eax, 0ffffh ; ax - count of bytes in cluster |
1263 | add dword [si+8*3+2], eax |
1267 | add dword [si+8*3+2], eax |
1264 | 1268 | ||
1265 | mov ax, word [end_of_FAT] ; max cluster number |
1269 | mov ax, word [end_of_FAT] ; max cluster number |
1266 | pusha |
1270 | pusha |
1267 | ; draw percentage |
1271 | ; draw percentage |
1268 | ; total clusters: ax |
1272 | ; total clusters: ax |
1269 | ; read clusters: di |
1273 | ; read clusters: di |
1270 | xchg ax, di |
1274 | xchg ax, di |
1271 | mov cx, 100 |
1275 | mov cx, 100 |
1272 | mul cx |
1276 | mul cx |
1273 | div di |
1277 | div di |
1274 | aam |
1278 | aam |
1275 | xchg al, ah |
1279 | xchg al, ah |
1276 | add ax, '00' |
1280 | add ax, '00' |
1277 | mov si, pros |
1281 | mov si, pros |
1278 | cmp [si], ax |
1282 | cmp [si], ax |
1279 | jz @f |
1283 | jz @f |
1280 | mov [si], ax |
1284 | mov [si], ax |
1281 | call printplain |
1285 | call printplain |
1282 | @@: |
1286 | @@: |
1283 | popa |
1287 | popa |
1284 | inc di |
1288 | inc di |
1285 | cmp di, word [end_of_FAT] ; max number of cluster |
1289 | cmp di, word [end_of_FAT] ; max number of cluster |
1286 | jnz .read_loop |
1290 | jnz .read_loop |
1287 | pop bx ; clear stack |
1291 | pop bx ; clear stack |
1288 | 1292 | ||
1289 | ok_sys_on_floppy: |
1293 | ok_sys_on_floppy: |
1290 | mov si, backspace2 |
1294 | mov si, backspace2 |
1291 | call printplain |
1295 | call printplain |
1292 | mov si, okt |
1296 | mov si, okt |
1293 | call printplain |
1297 | call printplain |
1294 | no_sys_on_floppy: |
1298 | no_sys_on_floppy: |
1295 | xor ax, ax ; reset drive |
1299 | xor ax, ax ; reset drive |
1296 | xor dx, dx |
1300 | xor dx, dx |
1297 | int 0x13 |
1301 | int 0x13 |
1298 | mov dx, 0x3f2 ; floppy motor off |
1302 | mov dx, 0x3f2 ; floppy motor off |
1299 | mov al, 0 |
1303 | mov al, 0 |
1300 | out dx, al |
1304 | out dx, al |
1301 | 1305 | ||
1302 | if defined extended_primary_loader |
1306 | if defined extended_primary_loader |
1303 | cmp [boot_dev], 1 |
1307 | cmp [es:BOOT_DEV], 1 |
1304 | jne no_sys_from_primary |
1308 | jne no_sys_from_primary |
1305 | ; load kolibri.img using callback from primary loader |
1309 | ; load kolibri.img using callback from primary loader |
1306 | and word [movedesc + 24 + 2], 0 |
1310 | and word [movedesc + 24 + 2], 0 |
1307 | mov byte [movedesc + 24 + 4], 10h |
1311 | mov byte [movedesc + 24 + 4], 10h |
1308 | ; read in blocks of 64K until file is fully loaded |
1312 | ; read in blocks of 64K until file is fully loaded |
1309 | mov ax, 1 |
1313 | mov ax, 1 |
1310 | .repeat: |
1314 | .repeat: |
1311 | mov di, image_file_struct |
1315 | mov di, image_file_struct |
1312 | call [bootcallback] |
1316 | call [bootcallback] |
1313 | push cs |
1317 | push cs |
1314 | pop ds |
1318 | pop ds |
1315 | push cs |
1319 | push cs |
1316 | pop es |
1320 | pop es |
1317 | cmp bx, 1 |
1321 | cmp bx, 1 |
1318 | ja sayerr_badsect |
1322 | ja sayerr_badsect |
1319 | push bx |
1323 | push bx |
1320 | mov si, movedesc |
1324 | mov si, movedesc |
1321 | and word [si + 16 + 2], 0 |
1325 | and word [si + 16 + 2], 0 |
1322 | mov byte [si + 16 + 4], 4 |
1326 | mov byte [si + 16 + 4], 4 |
1323 | mov ah, 87h |
1327 | mov ah, 87h |
1324 | mov cx, 8000h |
1328 | mov cx, 8000h |
1325 | int 15h |
1329 | int 15h |
1326 | pop bx |
1330 | pop bx |
1327 | test ah, ah |
1331 | test ah, ah |
1328 | jnz sayerr_memmove |
1332 | jnz sayerr_memmove |
1329 | inc byte [si + 24 + 4] |
1333 | inc byte [si + 24 + 4] |
1330 | test bx, bx |
1334 | test bx, bx |
1331 | jz no_sys_from_primary |
1335 | jz no_sys_from_primary |
1332 | mov ax, 2 |
1336 | mov ax, 2 |
1333 | jmp .repeat |
1337 | jmp .repeat |
1334 | no_sys_from_primary: |
1338 | no_sys_from_primary: |
1335 | end if |
1339 | end if |
1336 | 1340 | ||
1337 | ; SET GRAPHICS |
1341 | ; SET GRAPHICS |
1338 | 1342 | ||
1339 | xor ax, ax |
1343 | xor ax, ax |
1340 | mov es, ax |
1344 | mov es, ax |
1341 | 1345 | ||
1342 | mov ax, [es:BOOT_VESA_MODE] ; vga & 320x200 |
1346 | mov ax, [es:BOOT_VESA_MODE] ; vga & 320x200 |
1343 | mov bx, ax |
1347 | mov bx, ax |
1344 | cmp ax, 0x13 |
1348 | cmp ax, 0x13 |
1345 | je setgr |
1349 | je setgr |
1346 | cmp ax, 0x12 |
1350 | cmp ax, 0x12 |
1347 | je setgr |
1351 | je setgr |
1348 | mov ax, 0x4f02 ; Vesa |
1352 | mov ax, 0x4f02 ; Vesa |
1349 | setgr: |
1353 | setgr: |
1350 | int 0x10 |
1354 | int 0x10 |
1351 | test ah, ah |
1355 | test ah, ah |
1352 | mov si, fatalsel |
1356 | mov si, fatalsel |
1353 | jnz v_mode_error |
1357 | jnz v_mode_error |
1354 | ; set mode 0x12 graphics registers: |
1358 | ; set mode 0x12 graphics registers: |
1355 | cmp bx, 0x12 |
1359 | cmp bx, 0x12 |
1356 | jne gmok2 |
1360 | jne gmok2 |
1357 | 1361 | ||
1358 | mov al, 0x05 |
1362 | mov al, 0x05 |
1359 | mov dx, 0x03ce |
1363 | mov dx, 0x03ce |
1360 | push dx |
1364 | push dx |
1361 | out dx, al ; select GDC mode register |
1365 | out dx, al ; select GDC mode register |
1362 | mov al, 0x02 |
1366 | mov al, 0x02 |
1363 | inc dx |
1367 | inc dx |
1364 | out dx, al ; set write mode 2 |
1368 | out dx, al ; set write mode 2 |
1365 | 1369 | ||
1366 | mov al, 0x02 |
1370 | mov al, 0x02 |
1367 | mov dx, 0x03c4 |
1371 | mov dx, 0x03c4 |
1368 | out dx, al ; select VGA sequencer map mask register |
1372 | out dx, al ; select VGA sequencer map mask register |
1369 | mov al, 0x0f |
1373 | mov al, 0x0f |
1370 | inc dx |
1374 | inc dx |
1371 | out dx, al ; set mask for all planes 0-3 |
1375 | out dx, al ; set mask for all planes 0-3 |
1372 | 1376 | ||
1373 | mov al, 0x08 |
1377 | mov al, 0x08 |
1374 | pop dx |
1378 | pop dx |
1375 | out dx, al ; select GDC bit mask register |
1379 | out dx, al ; select GDC bit mask register |
1376 | ; for writes to 0x03cf |
1380 | ; for writes to 0x03cf |
1377 | gmok2: |
1381 | gmok2: |
1378 | push ds |
1382 | push ds |
1379 | pop es |
1383 | pop es |