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Rev 7132 | Rev 7586 | ||
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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: 7132 $ |
14 | $Revision: 7586 $ |
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 |
277 | push 0 |
278 | pop es |
278 | pop es |
279 | ; \begin{diamond}[02.12.2005] |
279 | ; \begin{diamond}[02.12.2005] |
280 | ; 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 |
281 | cmp ax, 'KL' |
281 | cmp ax, 'KL' |
282 | jnz @f |
282 | jnz @f |
283 | mov word [cs:cfgmanager.loader_block], si |
283 | mov word [cs:cfgmanager.loader_block], si |
284 | mov word [cs:cfgmanager.loader_block+2], ds |
284 | mov word [cs:cfgmanager.loader_block+2], ds |
285 | mov word [es:BOOT_LO.kernel_restart], kernel_restart_bootblock |
285 | mov word [es:BOOT_LO.kernel_restart], kernel_restart_bootblock |
286 | @@: |
286 | @@: |
287 | ; \end{diamond}[02.12.2005] |
287 | ; \end{diamond}[02.12.2005] |
288 | 288 | ||
289 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source disk |
289 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source disk |
290 | ; (see comment to BOOT_LO.bx_from_load and loader_doc.txt) |
290 | ; (see comment to BOOT_LO.bx_from_load and loader_doc.txt) |
291 | mov word [es:BOOT_LO.bx_from_load], 'r1' ; default value: /rd/1 |
291 | mov word [es:BOOT_LO.bx_from_load], 'r1' ; default value: /rd/1 |
292 | cmp cx, 'HA' |
292 | cmp cx, 'HA' |
293 | jnz no_hd_load |
293 | jnz no_hd_load |
294 | cmp dx, 'RD' |
294 | cmp dx, 'RD' |
295 | jnz no_hd_load |
295 | jnz no_hd_load |
296 | mov [es:BOOT_LO.bx_from_load], bx |
296 | mov [es:BOOT_LO.bx_from_load], bx |
297 | no_hd_load: |
297 | no_hd_load: |
298 | 298 | ||
299 | ; set up stack |
299 | ; set up stack |
300 | mov ax, (TMP_STACK_TOP and 0xF0000) shr 4 |
300 | mov ax, (TMP_STACK_TOP and 0xF0000) shr 4 |
301 | mov ss, ax |
301 | mov ss, ax |
302 | mov sp, TMP_STACK_TOP and 0xFFFF |
302 | mov sp, TMP_STACK_TOP and 0xFFFF |
303 | ; set up segment registers |
303 | ; set up segment registers |
304 | push cs |
304 | push cs |
305 | pop ds |
305 | pop ds |
306 | push cs |
306 | push cs |
307 | pop es |
307 | pop es |
308 | end if |
308 | end if |
309 | 309 | ||
310 | ; set videomode |
310 | ; set videomode |
311 | mov ax, 3 |
311 | mov ax, 3 |
312 | int 0x10 |
312 | int 0x10 |
313 | 313 | ||
314 | if lang eq ru |
314 | if lang eq ru |
315 | ; Load & set russian VGA font (RU.INC) |
315 | ; Load & set russian VGA font (RU.INC) |
316 | mov bp, RU_FNT1 ; RU_FNT1 - First part |
316 | mov bp, RU_FNT1 ; RU_FNT1 - First part |
317 | mov bx, 1000h ; 768 bytes |
317 | mov bx, 1000h ; 768 bytes |
318 | mov cx, 30h ; 48 symbols |
318 | mov cx, 30h ; 48 symbols |
319 | mov dx, 80h ; 128 - position of first symbol |
319 | mov dx, 80h ; 128 - position of first symbol |
320 | mov ax, 1100h |
320 | mov ax, 1100h |
321 | int 10h |
321 | int 10h |
322 | 322 | ||
323 | mov bp, RU_FNT2 ; RU_FNT2 -Second part |
323 | mov bp, RU_FNT2 ; RU_FNT2 -Second part |
324 | mov bx, 1000h ; 512 bytes |
324 | mov bx, 1000h ; 512 bytes |
325 | mov cx, 20h ; 32 symbols |
325 | mov cx, 20h ; 32 symbols |
326 | mov dx, 0E0h ; 224 - position of first symbol |
326 | mov dx, 0E0h ; 224 - position of first symbol |
327 | mov ax, 1100h |
327 | mov ax, 1100h |
328 | int 10h |
328 | int 10h |
329 | ; End set VGA russian font |
329 | ; End set VGA russian font |
330 | else if lang eq et |
330 | else if lang eq et |
331 | mov bp, ET_FNT ; ET_FNT1 |
331 | mov bp, ET_FNT ; ET_FNT1 |
332 | mov bx, 1000h ; |
332 | mov bx, 1000h ; |
333 | mov cx, 255 ; 256 symbols |
333 | mov cx, 255 ; 256 symbols |
334 | xor dx, dx ; 0 - position of first symbol |
334 | xor dx, dx ; 0 - position of first symbol |
335 | mov ax, 1100h |
335 | mov ax, 1100h |
336 | int 10h |
336 | int 10h |
337 | end if |
337 | end if |
338 | 338 | ||
339 | ; draw frames |
339 | ; draw frames |
340 | push 0xb800 |
340 | push 0xb800 |
341 | pop es |
341 | pop es |
342 | xor di, di |
342 | xor di, di |
343 | mov ah, 1*16+15 |
343 | mov ah, 1*16+15 |
344 | 344 | ||
345 | ; draw top |
345 | ; draw top |
346 | mov si, d80x25_top |
346 | mov si, d80x25_top |
347 | mov cx, d80x25_top_num * 80 |
347 | mov cx, d80x25_top_num * 80 |
348 | @@: |
348 | @@: |
349 | lodsb |
349 | lodsb |
350 | stosw |
350 | stosw |
351 | loop @b |
351 | loop @b |
352 | ; draw spaces |
352 | ; draw spaces |
353 | mov si, space_msg |
353 | mov si, space_msg |
354 | mov dx, 25 - d80x25_top_num - d80x25_bottom_num |
354 | mov dx, 25 - d80x25_top_num - d80x25_bottom_num |
355 | dfl1: |
355 | dfl1: |
356 | push si |
356 | push si |
357 | mov cx, 80 |
357 | mov cx, 80 |
358 | @@: |
358 | @@: |
359 | lodsb |
359 | lodsb |
360 | stosw |
360 | stosw |
361 | loop @b |
361 | loop @b |
362 | pop si |
362 | pop si |
363 | dec dx |
363 | dec dx |
364 | jnz dfl1 |
364 | jnz dfl1 |
365 | ; draw bottom |
365 | ; draw bottom |
366 | mov si, d80x25_bottom |
366 | mov si, d80x25_bottom |
367 | mov cx, d80x25_bottom_num * 80 |
367 | mov cx, d80x25_bottom_num * 80 |
368 | @@: |
368 | @@: |
369 | lodsb |
369 | lodsb |
370 | stosw |
370 | stosw |
371 | loop @b |
371 | loop @b |
372 | 372 | ||
373 | 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 |
374 | 374 | ||
375 | _setcursor d80x25_top_num,0 |
375 | _setcursor d80x25_top_num,0 |
376 | 376 | ||
377 | 377 | ||
378 | ; TEST FOR 386+ |
378 | ; TEST FOR 386+ |
379 | 379 | ||
380 | mov bx, 0x4000 |
380 | mov bx, 0x4000 |
381 | pushf |
381 | pushf |
382 | pop ax |
382 | pop ax |
383 | mov dx, ax |
383 | mov dx, ax |
384 | xor ax, bx |
384 | xor ax, bx |
385 | push ax |
385 | push ax |
386 | popf |
386 | popf |
387 | pushf |
387 | pushf |
388 | pop ax |
388 | pop ax |
389 | and ax, bx |
389 | and ax, bx |
390 | and dx, bx |
390 | and dx, bx |
391 | cmp ax, dx |
391 | cmp ax, dx |
392 | jnz cpugood |
392 | jnz cpugood |
393 | mov si, not386 |
393 | mov si, not386 |
394 | sayerr: |
394 | sayerr: |
395 | call print |
395 | call print |
396 | jmp $ |
396 | jmp $ |
397 | cpugood: |
397 | cpugood: |
398 | 398 | ||
399 | push 0 |
399 | push 0 |
400 | popf |
400 | popf |
401 | 401 | ||
402 | ; set up esp |
402 | ; set up esp |
403 | movzx esp, sp |
403 | movzx esp, sp |
404 | 404 | ||
405 | push 0 |
405 | push 0 |
406 | pop es |
406 | pop es |
407 | 407 | ||
408 | xor cx, cx |
408 | xor cx, cx |
409 | @@: |
409 | @@: |
410 | in al, 64h |
410 | in al, 64h |
411 | test al, 2 |
411 | test al, 2 |
412 | loopnz @b |
412 | loopnz @b |
413 | 413 | ||
414 | mov al, 0xf6 ; Сброс клавиатуры, разрешить сканирование |
414 | mov al, 0xf6 ; Сброс клавиатуры, разрешить сканирование |
415 | out 0x60, al |
415 | out 0x60, al |
416 | xor cx, cx |
416 | xor cx, cx |
417 | @@: |
417 | @@: |
418 | in al, 64h |
418 | in al, 64h |
419 | test al, 1 |
419 | test al, 1 |
420 | loopz @b |
420 | loopz @b |
421 | in al, 0x60 |
421 | in al, 0x60 |
422 | 422 | ||
423 | ;;;/diamond today 5.02.2008 |
423 | ;;;/diamond today 5.02.2008 |
424 | ; set keyboard typematic rate & delay |
424 | ; set keyboard typematic rate & delay |
425 | mov al, 0xf3 |
425 | mov al, 0xf3 |
426 | out 0x60, al |
426 | out 0x60, al |
427 | xor cx, cx |
427 | xor cx, cx |
428 | @@: |
428 | @@: |
429 | in al, 64h |
429 | in al, 64h |
430 | test al, 1 |
430 | test al, 1 |
431 | loopz @b |
431 | loopz @b |
432 | in al, 0x60 |
432 | in al, 0x60 |
433 | mov al, 0 |
433 | mov al, 0 |
434 | out 0x60, al |
434 | out 0x60, al |
435 | xor cx, cx |
435 | xor cx, cx |
436 | @@: |
436 | @@: |
437 | in al, 64h |
437 | in al, 64h |
438 | test al, 1 |
438 | test al, 1 |
439 | loopz @b |
439 | loopz @b |
440 | in al, 0x60 |
440 | in al, 0x60 |
441 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
441 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
442 | sti |
442 | sti |
443 | ; --------------- APM --------------------- |
443 | ; --------------- APM --------------------- |
444 | and word [es:BOOT_LO.apm_version], 0 ; ver = 0.0 (APM not found) |
444 | and word [es:BOOT_LO.apm_version], 0 ; ver = 0.0 (APM not found) |
445 | mov ax, 0x5300 |
445 | mov ax, 0x5300 |
446 | xor bx, bx |
446 | xor bx, bx |
447 | int 0x15 |
447 | int 0x15 |
448 | jc apm_end ; APM not found |
448 | jc apm_end ; APM not found |
449 | test cx, 2 |
449 | test cx, 2 |
450 | jz apm_end ; APM 32-bit protected-mode interface not supported |
450 | jz apm_end ; APM 32-bit protected-mode interface not supported |
451 | mov [es:BOOT_LO.apm_version], ax ; Save APM Version |
451 | mov [es:BOOT_LO.apm_version], ax ; Save APM Version |
452 | mov [es:BOOT_LO.apm_flags], cx ; Save APM flags |
452 | mov [es:BOOT_LO.apm_flags], cx ; Save APM flags |
453 | 453 | ||
454 | ; Write APM ver ---- |
454 | ; Write APM ver ---- |
455 | and ax, 0xf0f |
455 | and ax, 0xf0f |
456 | add ax, '00' |
456 | add ax, '00' |
457 | mov si, msg_apm |
457 | mov si, msg_apm |
458 | mov [si + 5], ah |
458 | mov [si + 5], ah |
459 | mov [si + 7], al |
459 | mov [si + 7], al |
460 | _setcursor 0, 3 |
460 | _setcursor 0, 3 |
461 | call printplain |
461 | call printplain |
462 | ; ------------------ |
462 | ; ------------------ |
463 | 463 | ||
464 | mov ax, 0x5304 ; Disconnect interface |
464 | mov ax, 0x5304 ; Disconnect interface |
465 | xor bx, bx |
465 | xor bx, bx |
466 | int 0x15 |
466 | int 0x15 |
467 | mov ax, 0x5303 ; Connect 32 bit mode interface |
467 | mov ax, 0x5303 ; Connect 32 bit mode interface |
468 | xor bx, bx |
468 | xor bx, bx |
469 | int 0x15 |
469 | int 0x15 |
470 | 470 | ||
471 | mov [es:BOOT_LO.apm_entry], ebx |
471 | mov [es:BOOT_LO.apm_entry], ebx |
472 | mov [es:BOOT_LO.apm_code_32], ax |
472 | mov [es:BOOT_LO.apm_code_32], ax |
473 | mov [es:BOOT_LO.apm_code_16], cx |
473 | mov [es:BOOT_LO.apm_code_16], cx |
474 | mov [es:BOOT_LO.apm_data_16], dx |
474 | mov [es:BOOT_LO.apm_data_16], dx |
475 | 475 | ||
476 | apm_end: |
476 | apm_end: |
477 | _setcursor d80x25_top_num, 0 |
477 | _setcursor d80x25_top_num, 0 |
478 | 478 | ||
479 | if ~ defined extended_primary_loader |
479 | if ~ defined extended_primary_loader |
480 | ;CHECK current of code |
480 | ;CHECK current of code |
481 | cmp [cfgmanager.loader_block], -1 |
481 | cmp [cfgmanager.loader_block], -1 |
482 | jz noloaderblock |
482 | jz noloaderblock |
483 | les bx, [cfgmanager.loader_block] |
483 | les bx, [cfgmanager.loader_block] |
484 | cmp byte [es:bx], 1 |
484 | cmp byte [es:bx], 1 |
485 | mov si, loader_block_error |
485 | mov si, loader_block_error |
486 | jnz sayerr |
486 | jnz sayerr |
487 | push 0 |
487 | push 0 |
488 | pop es |
488 | pop es |
489 | end if |
489 | end if |
490 | 490 | ||
491 | noloaderblock: |
491 | noloaderblock: |
492 | ; DISPLAY VESA INFORMATION |
492 | ; DISPLAY VESA INFORMATION |
493 | call print_vesa_info |
493 | call print_vesa_info |
494 | call calc_vmodes_table |
494 | call calc_vmodes_table |
495 | call check_first_parm ;check and enable cursor_pos |
495 | call check_first_parm ;check and enable cursor_pos |
496 | 496 | ||
497 | ; \begin{diamond}[30.11.2005] |
497 | ; \begin{diamond}[30.11.2005] |
498 | cfgmanager: |
498 | cfgmanager: |
499 | ; settings: |
499 | ; settings: |
500 | ; a) preboot_graph = graphical mode |
500 | ; a) preboot_graph = graphical mode |
501 | ; preboot_gprobe = probe this mode? |
501 | ; preboot_gprobe = probe this mode? |
502 | ; 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?) |
503 | ; c) preboot_debug = duplicates kernel debug output to the screen |
503 | ; c) preboot_debug = duplicates kernel debug output to the screen |
504 | ; 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? |
505 | ; e) preboot_device = from where to boot? |
505 | ; e) preboot_device = from where to boot? |
506 | 506 | ||
507 | ; determine default settings |
507 | ; determine default settings |
508 | if ~ defined extended_primary_loader |
508 | if ~ defined extended_primary_loader |
509 | mov [.bSettingsChanged], 0 |
509 | mov [.bSettingsChanged], 0 |
510 | end if |
510 | end if |
511 | 511 | ||
512 | ;.preboot_gr_end: |
512 | ;.preboot_gr_end: |
513 | mov di, preboot_device |
513 | mov di, preboot_device |
514 | ; if image in memory is present and [preboot_device] is uninitialized, |
514 | ; if image in memory is present and [preboot_device] is uninitialized, |
515 | ; set it to use this preloaded image |
515 | ; set it to use this preloaded image |
516 | cmp byte [di], 0 |
516 | cmp byte [di], 0 |
517 | jnz .preboot_device_inited |
517 | jnz .preboot_device_inited |
518 | if defined extended_primary_loader |
518 | if defined extended_primary_loader |
519 | inc byte [di] |
519 | inc byte [di] |
520 | cmp byte [bootdevice], 'f' ; floppy? |
520 | cmp byte [bootdevice], 'f' ; floppy? |
521 | jz .preboot_device_inited |
521 | jz .preboot_device_inited |
522 | inc byte [di] |
522 | inc byte [di] |
523 | else |
523 | else |
524 | cmp [.loader_block], -1 |
524 | cmp [.loader_block], -1 |
525 | jz @f |
525 | jz @f |
526 | les bx, [.loader_block] |
526 | les bx, [.loader_block] |
527 | test byte [es:bx+1], 1 |
527 | test byte [es:bx+1], 1 |
528 | jz @f |
528 | jz @f |
529 | mov byte [di], 3 |
529 | mov byte [di], 3 |
530 | jmp .preboot_device_inited |
530 | jmp .preboot_device_inited |
531 | @@: |
531 | @@: |
532 | ; otherwise, set [preboot_device] to 1 (default value - boot from floppy) |
532 | ; otherwise, set [preboot_device] to 1 (default value - boot from floppy) |
533 | mov byte [di], 1 |
533 | mov byte [di], 1 |
534 | end if |
534 | end if |
535 | .preboot_device_inited: |
535 | .preboot_device_inited: |
536 | ; 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 |
537 | cmp byte [di+preboot_dma-preboot_device], 1 |
537 | cmp byte [di+preboot_dma-preboot_device], 1 |
538 | adc byte [di+preboot_dma-preboot_device], 0 |
538 | adc byte [di+preboot_dma-preboot_device], 0 |
539 | 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 |
540 | adc byte [di+preboot_launcher-preboot_device], 0 |
540 | adc byte [di+preboot_launcher-preboot_device], 0 |
541 | _setcursor 5,2 |
541 | _setcursor 5,2 |
542 | 542 | ||
543 | mov si, linef |
543 | mov si, linef |
544 | call printplain |
544 | call printplain |
545 | mov si, start_msg |
545 | mov si, start_msg |
546 | call print |
546 | call print |
547 | mov si, time_msg |
547 | mov si, time_msg |
548 | call print |
548 | call print |
549 | ; get start time |
549 | ; get start time |
550 | call .gettime |
550 | call .gettime |
551 | mov [.starttime], eax |
551 | mov [.starttime], eax |
552 | mov word [.timer], .newtimer |
552 | mov word [.timer], .newtimer |
553 | mov word [.timer+2], cs |
553 | mov word [.timer+2], cs |
554 | .printcfg: |
554 | .printcfg: |
555 | 555 | ||
556 | _setcursor 9,0 |
556 | _setcursor 9,0 |
557 | mov si, current_cfg_msg |
557 | mov si, current_cfg_msg |
558 | call print |
558 | call print |
559 | mov si, curvideo_msg |
559 | mov si, curvideo_msg |
560 | call print |
560 | call print |
561 | 561 | ||
562 | call draw_current_vmode |
562 | call draw_current_vmode |
563 | 563 | ||
564 | mov si, usebd_msg |
564 | mov si, usebd_msg |
565 | cmp [preboot_biosdisk], 1 |
565 | cmp [preboot_biosdisk], 1 |
566 | call .say_on_off |
566 | call .say_on_off |
567 | mov si, debug_mode_msg |
567 | mov si, debug_mode_msg |
568 | cmp [preboot_debug], 1 |
568 | cmp [preboot_debug], 1 |
569 | call .say_on_off |
569 | call .say_on_off |
570 | mov si, launcher_msg |
570 | mov si, launcher_msg |
571 | cmp [preboot_launcher], 1 |
571 | cmp [preboot_launcher], 1 |
572 | call .say_on_off |
572 | call .say_on_off |
573 | mov si, preboot_device_msg |
573 | mov si, preboot_device_msg |
574 | call print |
574 | call print |
575 | mov al, [preboot_device] |
575 | mov al, [preboot_device] |
576 | if defined extended_primary_loader |
576 | if defined extended_primary_loader |
577 | and eax, 3 |
577 | and eax, 3 |
578 | else |
578 | else |
579 | and eax, 7 |
579 | and eax, 7 |
580 | end if |
580 | end if |
581 | mov si, [preboot_device_msgs+eax*2] |
581 | mov si, [preboot_device_msgs+eax*2] |
582 | call printplain |
582 | call printplain |
583 | .show_remarks: |
583 | .show_remarks: |
584 | ; show remarks in gray color |
584 | ; show remarks in gray color |
585 | mov di, ((21-num_remarks)*80 + 2)*2 |
585 | mov di, ((21-num_remarks)*80 + 2)*2 |
586 | push 0xB800 |
586 | push 0xB800 |
587 | pop es |
587 | pop es |
588 | mov cx, num_remarks |
588 | mov cx, num_remarks |
589 | mov si, remarks |
589 | mov si, remarks |
590 | .write_remarks: |
590 | .write_remarks: |
591 | lodsw |
591 | lodsw |
592 | push si |
592 | push si |
593 | xchg ax, si |
593 | xchg ax, si |
594 | mov ah, 1*16+7 ; background: blue (1), foreground: gray (7) |
594 | mov ah, 1*16+7 ; background: blue (1), foreground: gray (7) |
595 | push di |
595 | push di |
596 | .write_remark: |
596 | .write_remark: |
597 | lodsb |
597 | lodsb |
598 | test al, al |
598 | test al, al |
599 | jz @f |
599 | jz @f |
600 | stosw |
600 | stosw |
601 | jmp .write_remark |
601 | jmp .write_remark |
602 | @@: |
602 | @@: |
603 | pop di |
603 | pop di |
604 | pop si |
604 | pop si |
605 | add di, 80*2 |
605 | add di, 80*2 |
606 | loop .write_remarks |
606 | loop .write_remarks |
607 | .wait: |
607 | .wait: |
608 | _setcursor 25,0 ; out of screen |
608 | _setcursor 25,0 ; out of screen |
609 | ; set timer interrupt handler |
609 | ; set timer interrupt handler |
610 | cli |
610 | cli |
611 | push 0 |
611 | push 0 |
612 | pop es |
612 | pop es |
613 | push dword [es:8*4] |
613 | push dword [es:8*4] |
614 | pop dword [.oldtimer] |
614 | pop dword [.oldtimer] |
615 | push dword [.timer] |
615 | push dword [.timer] |
616 | pop dword [es:8*4] |
616 | pop dword [es:8*4] |
617 | ; mov eax, [es:8*4] |
617 | ; mov eax, [es:8*4] |
618 | ; mov [.oldtimer], eax |
618 | ; mov [.oldtimer], eax |
619 | ; mov eax, [.timer] |
619 | ; mov eax, [.timer] |
620 | ; mov [es:8*4], eax |
620 | ; mov [es:8*4], eax |
621 | sti |
621 | sti |
622 | ; wait for keypressed |
622 | ; wait for keypressed |
623 | xor ax, ax |
623 | xor ax, ax |
624 | int 16h |
624 | int 16h |
625 | push ax |
625 | push ax |
626 | ; restore timer interrupt |
626 | ; restore timer interrupt |
627 | ; push 0 |
627 | ; push 0 |
628 | ; pop es |
628 | ; pop es |
629 | mov eax, [.oldtimer] |
629 | mov eax, [.oldtimer] |
630 | mov [es:8*4], eax |
630 | mov [es:8*4], eax |
631 | mov [.timer], eax |
631 | mov [.timer], eax |
632 | 632 | ||
633 | _setcursor 7,0 |
633 | _setcursor 7,0 |
634 | mov si, space_msg |
634 | mov si, space_msg |
635 | call printplain |
635 | call printplain |
636 | ; clear remarks and restore normal attributes |
636 | ; clear remarks and restore normal attributes |
637 | push es |
637 | push es |
638 | mov di, ((21-num_remarks)*80 + 2)*2 |
638 | mov di, ((21-num_remarks)*80 + 2)*2 |
639 | push 0xB800 |
639 | push 0xB800 |
640 | pop es |
640 | pop es |
641 | mov cx, num_remarks |
641 | mov cx, num_remarks |
642 | mov ax, ' ' + (1*16 + 15)*100h |
642 | mov ax, ' ' + (1*16 + 15)*100h |
643 | @@: |
643 | @@: |
644 | push cx |
644 | push cx |
645 | mov cx, 76 |
645 | mov cx, 76 |
646 | rep stosw |
646 | rep stosw |
647 | pop cx |
647 | pop cx |
648 | add di, 4*2 |
648 | add di, 4*2 |
649 | loop @b |
649 | loop @b |
650 | pop es |
650 | pop es |
651 | pop ax |
651 | pop ax |
652 | ; switch on key |
652 | ; switch on key |
653 | cmp al, 13 |
653 | cmp al, 13 |
654 | jz .continue |
654 | jz .continue |
655 | or al, 20h |
655 | or al, 20h |
656 | cmp al, 'a' ; select graphical mode |
656 | cmp al, 'a' ; select graphical mode |
657 | jz .change_a |
657 | jz .change_a |
658 | 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 |
659 | je .change_a |
659 | je .change_a |
660 | 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) |
661 | jz .change_b |
661 | jz .change_b |
662 | cmp al, 'c' ; load kernel in debug mode? |
662 | cmp al, 'c' ; load kernel in debug mode? |
663 | jz .change_c |
663 | jz .change_c |
664 | cmp al, 'd' ; start launcher after kernel is loaded? |
664 | cmp al, 'd' ; start launcher after kernel is loaded? |
665 | jz .change_d |
665 | jz .change_d |
666 | cmp al, 'e' ; select boot origin |
666 | cmp al, 'e' ; select boot origin |
667 | jnz .show_remarks |
667 | jnz .show_remarks |
668 | ; e) preboot_device = from where to boot? |
668 | ; e) preboot_device = from where to boot? |
669 | if defined extended_primary_loader |
669 | if defined extended_primary_loader |
670 | _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 |
671 | else |
671 | else |
672 | _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 |
673 | end if |
673 | end if |
674 | _setcursor 14,0 |
674 | _setcursor 14,0 |
675 | 675 | ||
676 | .d: |
676 | .d: |
677 | if ~ defined extended_primary_loader |
677 | if ~ defined extended_primary_loader |
678 | mov [.bSettingsChanged], 1 |
678 | mov [.bSettingsChanged], 1 |
679 | end if |
679 | end if |
680 | .esc_pressed: |
680 | .esc_pressed: |
681 | call clear_vmodes_table ;clear vmodes_table |
681 | call clear_vmodes_table ;clear vmodes_table |
682 | jmp .printcfg |
682 | jmp .printcfg |
683 | 683 | ||
684 | .change_a: |
684 | .change_a: |
685 | call clear_vmodes_table ;clear vmodes_table |
685 | call clear_vmodes_table ;clear vmodes_table |
686 | 686 | ||
687 | mov si, word [cursor_pos] |
687 | mov si, word [cursor_pos] |
688 | mov word [cursor_pos_old], si |
688 | mov word [cursor_pos_old], si |
689 | .loops: |
689 | .loops: |
690 | call draw_vmodes_table |
690 | call draw_vmodes_table |
691 | _setcursor 25,0 ; out of screen |
691 | _setcursor 25,0 ; out of screen |
692 | xor ax, ax |
692 | xor ax, ax |
693 | int 0x16 |
693 | int 0x16 |
694 | ; call clear_table_cursor ;clear current position of cursor |
694 | ; call clear_table_cursor ;clear current position of cursor |
695 | 695 | ||
696 | mov si, word [cursor_pos] |
696 | mov si, word [cursor_pos] |
697 | 697 | ||
698 | 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 |
699 | jnz @f ; Just exit the resolution selection box |
699 | jnz @f ; Just exit the resolution selection box |
700 | 700 | ||
701 | mov si, word [cursor_pos_old] |
701 | mov si, word [cursor_pos_old] |
702 | mov word [cursor_pos], si |
702 | mov word [cursor_pos], si |
703 | jmp .esc_pressed |
703 | jmp .esc_pressed |
704 | @@: |
704 | @@: |
705 | cmp ah, 0x48;x,0x48E0 ; up |
705 | cmp ah, 0x48;x,0x48E0 ; up |
706 | jne .down |
706 | jne .down |
707 | cmp si, modes_table |
707 | cmp si, modes_table |
708 | jbe .loops |
708 | jbe .loops |
709 | sub word [cursor_pos], size_of_step |
709 | sub word [cursor_pos], size_of_step |
710 | jmp .loops |
710 | jmp .loops |
711 | 711 | ||
712 | .down: |
712 | .down: |
713 | cmp ah, 0x50;x,0x50E0 ; down |
713 | cmp ah, 0x50;x,0x50E0 ; down |
714 | jne .pgup |
714 | jne .pgup |
715 | cmp word[es:si+10], -1 |
715 | cmp word[es:si+10], -1 |
716 | je .loops |
716 | je .loops |
717 | add word [cursor_pos], size_of_step |
717 | add word [cursor_pos], size_of_step |
718 | jmp .loops |
718 | jmp .loops |
719 | 719 | ||
720 | .pgup: |
720 | .pgup: |
721 | cmp ah, 0x49 ; page up |
721 | cmp ah, 0x49 ; page up |
722 | jne .pgdn |
722 | jne .pgdn |
723 | sub si, size_of_step*long_v_table |
723 | sub si, size_of_step*long_v_table |
724 | cmp si, modes_table |
724 | cmp si, modes_table |
725 | jae @f |
725 | jae @f |
726 | mov si, modes_table |
726 | mov si, modes_table |
727 | @@: |
727 | @@: |
728 | mov word [cursor_pos], si |
728 | mov word [cursor_pos], si |
729 | mov si, word [home_cursor] |
729 | mov si, word [home_cursor] |
730 | sub si, size_of_step*long_v_table |
730 | sub si, size_of_step*long_v_table |
731 | cmp si, modes_table |
731 | cmp si, modes_table |
732 | jae @f |
732 | jae @f |
733 | mov si, modes_table |
733 | mov si, modes_table |
734 | @@: |
734 | @@: |
735 | mov word [home_cursor], si |
735 | mov word [home_cursor], si |
736 | jmp .loops |
736 | jmp .loops |
737 | 737 | ||
738 | .pgdn: |
738 | .pgdn: |
739 | cmp ah, 0x51 ; page down |
739 | cmp ah, 0x51 ; page down |
740 | jne .enter |
740 | jne .enter |
741 | mov ax, [end_cursor] |
741 | mov ax, [end_cursor] |
742 | add si, size_of_step*long_v_table |
742 | add si, size_of_step*long_v_table |
743 | cmp si, ax |
743 | cmp si, ax |
744 | jb @f |
744 | jb @f |
745 | mov si, ax |
745 | mov si, ax |
746 | sub si, size_of_step |
746 | sub si, size_of_step |
747 | @@: |
747 | @@: |
748 | mov word [cursor_pos], si |
748 | mov word [cursor_pos], si |
749 | mov si, word [home_cursor] |
749 | mov si, word [home_cursor] |
750 | sub ax, size_of_step*long_v_table |
750 | sub ax, size_of_step*long_v_table |
751 | add si, size_of_step*long_v_table |
751 | add si, size_of_step*long_v_table |
752 | cmp si, ax |
752 | cmp si, ax |
753 | jb @f |
753 | jb @f |
754 | mov si, ax |
754 | mov si, ax |
755 | @@: |
755 | @@: |
756 | mov word [home_cursor], si |
756 | mov word [home_cursor], si |
757 | jmp .loops |
757 | jmp .loops |
758 | 758 | ||
759 | .enter: |
759 | .enter: |
760 | cmp al, 0x0D;x,0x1C0D ; enter |
760 | cmp al, 0x0D;x,0x1C0D ; enter |
761 | jne .loops |
761 | jne .loops |
762 | push word [cursor_pos] |
762 | push word [cursor_pos] |
763 | pop bp |
763 | pop bp |
764 | push word [es:bp] |
764 | push word [es:bp] |
765 | pop word [x_save] |
765 | pop word [x_save] |
766 | push word [es:bp+2] |
766 | push word [es:bp+2] |
767 | pop word [y_save] |
767 | pop word [y_save] |
768 | push word [es:bp+6] |
768 | push word [es:bp+6] |
769 | pop word [number_vm] |
769 | pop word [number_vm] |
770 | mov word [preboot_graph], bp ;save choose |
770 | mov word [preboot_graph], bp ;save choose |
771 | 771 | ||
772 | jmp .d |
772 | jmp .d |
773 | 773 | ||
774 | .change_b: ; b) preboot_biosdisk = use BIOS disks through V86 emulation? |
774 | .change_b: ; b) preboot_biosdisk = use BIOS disks through V86 emulation? |
775 | ; _setcursor 16,0 |
775 | ; _setcursor 16,0 |
776 | ; mov si, ask_dma // (earlier was: preboot_dma = use DMA access?) |
776 | ; mov si, ask_dma // (earlier was: preboot_dma = use DMA access?) |
777 | ; call print |
777 | ; call print |
778 | ; mov bx, '13' ; range accepted for answer: 1-3 |
778 | ; mov bx, '13' ; range accepted for answer: 1-3 |
779 | ; call getkey |
779 | ; call getkey |
780 | ; mov [preboot_dma], al |
780 | ; mov [preboot_dma], al |
781 | _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 |
782 | _setcursor 11,0 |
782 | _setcursor 11,0 |
783 | jmp .d |
783 | jmp .d |
784 | .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 |
785 | _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 |
786 | _setcursor 12,0 |
786 | _setcursor 12,0 |
787 | jmp .d |
787 | jmp .d |
788 | .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? |
789 | _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 |
790 | _setcursor 13,0 |
790 | _setcursor 13,0 |
791 | jmp .d |
791 | jmp .d |
792 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
792 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
793 | .say_on_off: |
793 | .say_on_off: |
794 | pushf |
794 | pushf |
795 | call print |
795 | call print |
796 | mov si, on_msg |
796 | mov si, on_msg |
797 | popf |
797 | popf |
798 | jz @f |
798 | jz @f |
799 | mov si, off_msg |
799 | mov si, off_msg |
800 | @@: |
800 | @@: |
801 | jmp printplain |
801 | jmp printplain |
802 | ; 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 |
803 | virtual at novesa |
803 | virtual at novesa |
804 | .oldtimer dd ? |
804 | .oldtimer dd ? |
805 | .starttime dd ? |
805 | .starttime dd ? |
806 | if ~ defined extended_primary_loader |
806 | if ~ defined extended_primary_loader |
807 | .bSettingsChanged db ? |
807 | .bSettingsChanged db ? |
808 | end if |
808 | end if |
809 | .timer dd ? |
809 | .timer dd ? |
810 | end virtual |
810 | end virtual |
811 | if ~ defined extended_primary_loader |
811 | if ~ defined extended_primary_loader |
812 | .loader_block dd -1 |
812 | .loader_block dd -1 |
813 | end if |
813 | end if |
814 | .gettime: |
814 | .gettime: |
815 | mov ah, 0 |
815 | mov ah, 0 |
816 | int 1Ah |
816 | int 1Ah |
817 | xchg ax, cx |
817 | xchg ax, cx |
818 | shl eax, 10h |
818 | shl eax, 10h |
819 | xchg ax, dx |
819 | xchg ax, dx |
820 | ret |
820 | ret |
821 | .newtimer: |
821 | .newtimer: |
822 | push ds |
822 | push ds |
823 | push cs |
823 | push cs |
824 | pop ds |
824 | pop ds |
825 | pushf |
825 | pushf |
826 | call [.oldtimer] |
826 | call [.oldtimer] |
827 | pushad |
827 | pushad |
828 | call .gettime |
828 | call .gettime |
829 | sub eax, [.starttime] |
829 | sub eax, [.starttime] |
830 | if defined extended_primary_loader |
830 | if defined extended_primary_loader |
831 | sub ax, [preboot_timeout] |
831 | sub ax, [preboot_timeout] |
832 | else |
832 | else |
- | 833 | ; bios 0x1A timer runs at ~18 ticks per second |
|
833 | sub ax, 18*5 |
834 | sub ax, 18*PREBOOT_TIMEOUT |
834 | end if |
835 | end if |
835 | jae .timergo |
836 | jae .timergo |
836 | neg ax |
837 | neg ax |
837 | add ax, 18-1 |
838 | add ax, 18-1 |
838 | mov bx, 18 |
839 | mov bx, 18 |
839 | xor dx, dx |
840 | xor dx, dx |
840 | div bx |
841 | div bx |
841 | if lang eq ru |
842 | if lang eq ru |
842 | ; подождите 5 секунд, 4/3/2 секунды, 1 секунду |
843 | ; подождите 5 секунд, 4/3/2 секунды, 1 секунду |
843 | cmp al, 5 |
844 | cmp al, 5 |
844 | mov cl, ' ' |
845 | mov cl, ' ' |
845 | jae @f |
846 | jae @f |
846 | cmp al, 1 |
847 | cmp al, 1 |
847 | mov cl, 0xE3 ; 'у' in cp866 |
848 | mov cl, 0xE3 ; 'у' in cp866 |
848 | jz @f |
849 | jz @f |
849 | mov cl, 0xEB ; 'ы' in cp866 |
850 | mov cl, 0xEB ; 'ы' in cp866 |
850 | @@: |
851 | @@: |
851 | mov [time_str+9], cl |
852 | mov [time_str+9], cl |
852 | else if lang eq et |
853 | else if lang eq et |
853 | cmp al, 1 |
854 | cmp al, 1 |
854 | ja @f |
855 | ja @f |
855 | mov byte [time_str+9], ' ' |
856 | mov byte [time_str+9], ' ' |
856 | mov byte [time_str+10], ' ' |
857 | mov byte [time_str+10], ' ' |
857 | @@: |
858 | @@: |
858 | else if lang eq sp |
859 | else if lang eq sp |
859 | ; esperar 5/4/3/2 segundos, 1 segundo |
860 | ; esperar 5/4/3/2 segundos, 1 segundo |
860 | cmp al, 1 |
861 | cmp al, 1 |
861 | mov cl, 's' |
862 | mov cl, 's' |
862 | ja @f |
863 | ja @f |
863 | mov cl, ' ' |
864 | mov cl, ' ' |
864 | @@: |
865 | @@: |
865 | mov [time_str+10], cl |
866 | mov [time_str+10], cl |
866 | else |
867 | else |
867 | ; wait 5/4/3/2 seconds, 1 second |
868 | ; wait 5/4/3/2 seconds, 1 second |
868 | cmp al, 1 |
869 | cmp al, 1 |
869 | mov cl, 's' |
870 | mov cl, 's' |
870 | ja @f |
871 | ja @f |
871 | mov cl, ' ' |
872 | mov cl, ' ' |
872 | @@: |
873 | @@: |
873 | mov [time_str+9], cl |
874 | mov [time_str+9], cl |
874 | end if |
875 | end if |
875 | add al, '0' |
876 | add al, '0' |
876 | mov [time_str+1], al |
877 | mov [time_str+1], al |
877 | mov si, time_msg |
878 | mov si, time_msg |
878 | _setcursor 7,0 |
879 | _setcursor 7,0 |
879 | call print |
880 | call print |
880 | _setcursor 25,0 |
881 | _setcursor 25,0 |
881 | popad |
882 | popad |
882 | pop ds |
883 | pop ds |
883 | iret |
884 | iret |
884 | .timergo: |
885 | .timergo: |
885 | push 0 |
886 | push 0 |
886 | pop es |
887 | pop es |
887 | mov eax, [.oldtimer] |
888 | mov eax, [.oldtimer] |
888 | mov [es:8*4], eax |
889 | mov [es:8*4], eax |
889 | mov sp, 0EC00h |
890 | mov sp, 0EC00h |
890 | .continue: |
891 | .continue: |
891 | sti |
892 | sti |
892 | _setcursor 6,0 |
893 | _setcursor 6,0 |
893 | mov si, space_msg |
894 | mov si, space_msg |
894 | call printplain |
895 | call printplain |
895 | call printplain |
896 | call printplain |
896 | _setcursor 6,0 |
897 | _setcursor 6,0 |
897 | mov si, loading_msg |
898 | mov si, loading_msg |
898 | call print |
899 | call print |
899 | _setcursor 16,0 |
900 | _setcursor 16,0 |
900 | if ~ defined extended_primary_loader |
901 | if ~ defined extended_primary_loader |
901 | cmp [.bSettingsChanged], 0 |
902 | cmp [.bSettingsChanged], 0 |
902 | jz .load |
903 | jz .load |
903 | cmp [.loader_block], -1 |
904 | cmp [.loader_block], -1 |
904 | jz .load |
905 | jz .load |
905 | les bx, [.loader_block] |
906 | les bx, [.loader_block] |
906 | mov eax, [es:bx+3] |
907 | mov eax, [es:bx+3] |
907 | push ds |
908 | push ds |
908 | pop es |
909 | pop es |
909 | test eax, eax |
910 | test eax, eax |
910 | jz .load |
911 | jz .load |
911 | push eax |
912 | push eax |
912 | mov si, save_quest |
913 | mov si, save_quest |
913 | call print |
914 | call print |
914 | .waityn: |
915 | .waityn: |
915 | mov ah, 0 |
916 | mov ah, 0 |
916 | int 16h |
917 | int 16h |
917 | or al, 20h |
918 | or al, 20h |
918 | cmp al, 'n' |
919 | cmp al, 'n' |
919 | jz .loadc |
920 | jz .loadc |
920 | if lang eq sp |
921 | if lang eq sp |
921 | cmp al, 's' |
922 | cmp al, 's' |
922 | else |
923 | else |
923 | cmp al, 'y' |
924 | cmp al, 'y' |
924 | end if |
925 | end if |
925 | jnz .waityn |
926 | jnz .waityn |
926 | call putchar |
927 | call putchar |
927 | mov byte [space_msg+80], 186 |
928 | mov byte [space_msg+80], 186 |
928 | 929 | ||
929 | pop eax |
930 | pop eax |
930 | push cs |
931 | push cs |
931 | push .cont |
932 | push .cont |
932 | push eax |
933 | push eax |
933 | retf ;call back |
934 | retf ;call back |
934 | .loadc: |
935 | .loadc: |
935 | pop eax |
936 | pop eax |
936 | .cont: |
937 | .cont: |
937 | push cs |
938 | push cs |
938 | pop ds |
939 | pop ds |
939 | mov si, space_msg |
940 | mov si, space_msg |
940 | mov byte [si+80], 0 |
941 | mov byte [si+80], 0 |
941 | _setcursor 16,0 |
942 | _setcursor 16,0 |
942 | call printplain |
943 | call printplain |
943 | _setcursor 16,0 |
944 | _setcursor 16,0 |
944 | .load: |
945 | .load: |
945 | end if |
946 | end if |
946 | ; \end{diamond}[02.12.2005] |
947 | ; \end{diamond}[02.12.2005] |
947 | 948 | ||
948 | ; ASK GRAPHICS MODE |
949 | ; ASK GRAPHICS MODE |
949 | 950 | ||
950 | call set_vmode |
951 | call set_vmode |
951 | 952 | ||
952 | ; GRAPHICS ACCELERATION |
953 | ; GRAPHICS ACCELERATION |
953 | ; force yes |
954 | ; force yes |
954 | mov [es:BOOT_LO.mtrr], byte 1 |
955 | mov [es:BOOT_LO.mtrr], byte 1 |
955 | 956 | ||
956 | ; DMA ACCESS TO HD |
957 | ; DMA ACCESS TO HD |
957 | 958 | ||
958 | mov al, [preboot_dma] |
959 | mov al, [preboot_dma] |
959 | mov [es:BOOT_LO.dma], al |
960 | mov [es:BOOT_LO.dma], al |
960 | 961 | ||
961 | ; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen. |
962 | ; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen. |
962 | mov al, [preboot_debug] |
963 | mov al, [preboot_debug] |
963 | mov [es:BOOT_LO.debug_print], al ;// 0x901E |
964 | mov [es:BOOT_LO.debug_print], al ;// 0x901E |
964 | 965 | ||
965 | ; Start the first app (right now it's LAUNCHER) after kernel is loaded? |
966 | ; Start the first app (right now it's LAUNCHER) after kernel is loaded? |
966 | mov al, [preboot_launcher] |
967 | mov al, [preboot_launcher] |
967 | mov [es:BOOT_LO.launcher_start], al ;// 0x901D |
968 | mov [es:BOOT_LO.launcher_start], al ;// 0x901D |
968 | 969 | ||
969 | ; BOOT DEVICE |
970 | ; BOOT DEVICE |
970 | 971 | ||
971 | mov al, [preboot_device] |
972 | mov al, [preboot_device] |
972 | dec al |
973 | dec al |
973 | mov [es:BOOT_LO.dev], al |
974 | mov [es:BOOT_LO.dev], al |
974 | 975 | ||
975 | ; GET MEMORY MAP |
976 | ; GET MEMORY MAP |
976 | include '../detect/biosmem.inc' |
977 | include '../detect/biosmem.inc' |
977 | 978 | ||
978 | ; READ DISKETTE TO MEMORY |
979 | ; READ DISKETTE TO MEMORY |
979 | 980 | ||
980 | cmp byte [es:BOOT_LO.dev], 0 |
981 | cmp byte [es:BOOT_LO.dev], 0 |
981 | jne no_sys_on_floppy |
982 | jne no_sys_on_floppy |
982 | mov si, diskload |
983 | mov si, diskload |
983 | call print |
984 | call print |
984 | xor ax, ax ; reset drive |
985 | xor ax, ax ; reset drive |
985 | xor dx, dx |
986 | xor dx, dx |
986 | int 0x13 |
987 | int 0x13 |
987 | ; do we boot from CD-ROM? |
988 | ; do we boot from CD-ROM? |
988 | mov ah, 41h |
989 | mov ah, 41h |
989 | mov bx, 55AAh |
990 | mov bx, 55AAh |
990 | xor dx, dx |
991 | xor dx, dx |
991 | int 0x13 |
992 | int 0x13 |
992 | jc .nocd |
993 | jc .nocd |
993 | cmp bx, 0AA55h |
994 | cmp bx, 0AA55h |
994 | jnz .nocd |
995 | jnz .nocd |
995 | mov ah, 48h |
996 | mov ah, 48h |
996 | push ds |
997 | push ds |
997 | push es |
998 | push es |
998 | pop ds |
999 | pop ds |
999 | mov si, 0xa000 |
1000 | mov si, 0xa000 |
1000 | mov word [si], 30 |
1001 | mov word [si], 30 |
1001 | int 0x13 |
1002 | int 0x13 |
1002 | pop ds |
1003 | pop ds |
1003 | jc .nocd |
1004 | jc .nocd |
1004 | push ds |
1005 | push ds |
1005 | lds si, [es:si+26] |
1006 | lds si, [es:si+26] |
1006 | test byte [ds:si+10], 40h |
1007 | test byte [ds:si+10], 40h |
1007 | pop ds |
1008 | pop ds |
1008 | jz .nocd |
1009 | jz .nocd |
1009 | ; yes - read all floppy by 18 sectors |
1010 | ; yes - read all floppy by 18 sectors |
1010 | 1011 | ||
1011 | ; TODO: !!!! read only first sector and set variables !!!!! |
1012 | ; TODO: !!!! read only first sector and set variables !!!!! |
1012 | ; ... |
1013 | ; ... |
1013 | ; TODO: !!! then read flippy image track by track |
1014 | ; TODO: !!! then read flippy image track by track |
1014 | 1015 | ||
1015 | mov cx, 0x0001 ; startcyl,startsector |
1016 | mov cx, 0x0001 ; startcyl,startsector |
1016 | .a1: |
1017 | .a1: |
1017 | push cx dx |
1018 | push cx dx |
1018 | mov al, 18 |
1019 | mov al, 18 |
1019 | mov bx, 0xa000 |
1020 | mov bx, 0xa000 |
1020 | call boot_read_floppy |
1021 | call boot_read_floppy |
1021 | mov si, movedesc |
1022 | mov si, movedesc |
1022 | push es |
1023 | push es |
1023 | push ds |
1024 | push ds |
1024 | pop es |
1025 | pop es |
1025 | mov cx, 256*18 |
1026 | mov cx, 256*18 |
1026 | mov ah, 0x87 |
1027 | mov ah, 0x87 |
1027 | int 0x15 |
1028 | int 0x15 |
1028 | pop es |
1029 | pop es |
1029 | pop dx cx |
1030 | pop dx cx |
1030 | test ah, ah |
1031 | test ah, ah |
1031 | jnz sayerr_floppy |
1032 | jnz sayerr_floppy |
1032 | add dword [si+8*3+2], 512*18 |
1033 | add dword [si+8*3+2], 512*18 |
1033 | inc dh |
1034 | inc dh |
1034 | cmp dh, 2 |
1035 | cmp dh, 2 |
1035 | jnz .a1 |
1036 | jnz .a1 |
1036 | mov dh, 0 |
1037 | mov dh, 0 |
1037 | inc ch |
1038 | inc ch |
1038 | cmp ch, 80 |
1039 | cmp ch, 80 |
1039 | jae ok_sys_on_floppy |
1040 | jae ok_sys_on_floppy |
1040 | pusha |
1041 | pusha |
1041 | mov al, ch |
1042 | mov al, ch |
1042 | shr ch, 2 |
1043 | shr ch, 2 |
1043 | add al, ch |
1044 | add al, ch |
1044 | aam |
1045 | aam |
1045 | xchg al, ah |
1046 | xchg al, ah |
1046 | add ax, '00' |
1047 | add ax, '00' |
1047 | mov si, pros |
1048 | mov si, pros |
1048 | mov [si], ax |
1049 | mov [si], ax |
1049 | call printplain |
1050 | call printplain |
1050 | popa |
1051 | popa |
1051 | jmp .a1 |
1052 | jmp .a1 |
1052 | .nocd: |
1053 | .nocd: |
1053 | ; no - read only used sectors from floppy |
1054 | ; no - read only used sectors from floppy |
1054 | ; now load floppy image to memory |
1055 | ; now load floppy image to memory |
1055 | ; at first load boot sector and first FAT table |
1056 | ; at first load boot sector and first FAT table |
1056 | 1057 | ||
1057 | ; read only first sector and fill variables |
1058 | ; read only first sector and fill variables |
1058 | mov cx, 0x0001 ; first logical sector |
1059 | mov cx, 0x0001 ; first logical sector |
1059 | xor dx, dx ; head = 0, drive = 0 (a:) |
1060 | xor dx, dx ; head = 0, drive = 0 (a:) |
1060 | mov al, 1 ; read one sector |
1061 | mov al, 1 ; read one sector |
1061 | mov bx, 0xB000 ; es:bx -> data area |
1062 | mov bx, 0xB000 ; es:bx -> data area |
1062 | call boot_read_floppy |
1063 | call boot_read_floppy |
1063 | ; fill the necessary parameters to work with a floppy |
1064 | ; fill the necessary parameters to work with a floppy |
1064 | mov ax, word [es:bx+24] |
1065 | mov ax, word [es:bx+24] |
1065 | mov word [BPB_SecPerTrk], ax |
1066 | mov word [BPB_SecPerTrk], ax |
1066 | mov ax, word [es:bx+26] |
1067 | mov ax, word [es:bx+26] |
1067 | mov word [BPB_NumHeads], ax |
1068 | mov word [BPB_NumHeads], ax |
1068 | mov ax, word [es:bx+17] |
1069 | mov ax, word [es:bx+17] |
1069 | mov word [BPB_RootEntCnt], ax |
1070 | mov word [BPB_RootEntCnt], ax |
1070 | mov ax, word [es:bx+14] |
1071 | mov ax, word [es:bx+14] |
1071 | mov word [BPB_RsvdSecCnt], ax |
1072 | mov word [BPB_RsvdSecCnt], ax |
1072 | mov ax, word [es:bx+19] |
1073 | mov ax, word [es:bx+19] |
1073 | mov word [BPB_TotSec16], ax |
1074 | mov word [BPB_TotSec16], ax |
1074 | mov al, byte [es:bx+13] |
1075 | mov al, byte [es:bx+13] |
1075 | mov byte [BPB_SecPerClus], al |
1076 | mov byte [BPB_SecPerClus], al |
1076 | mov al, byte [es:bx+16] |
1077 | mov al, byte [es:bx+16] |
1077 | mov byte [BPB_NumFATs], al |
1078 | mov byte [BPB_NumFATs], al |
1078 | ; |
1079 | ; |
1079 | mov ax, word [es:bx+22] |
1080 | mov ax, word [es:bx+22] |
1080 | mov word [BPB_FATSz16], ax |
1081 | mov word [BPB_FATSz16], ax |
1081 | mov cx, word [es:bx+11] |
1082 | mov cx, word [es:bx+11] |
1082 | mov word [BPB_BytsPerSec], cx |
1083 | mov word [BPB_BytsPerSec], cx |
1083 | 1084 | ||
1084 | ; count of clusters in FAT12 ((size_of_FAT*2)/3) |
1085 | ; count of clusters in FAT12 ((size_of_FAT*2)/3) |
1085 | ; mov ax, word [BPB_FATSz16] |
1086 | ; mov ax, word [BPB_FATSz16] |
1086 | ; mov cx, word [BPB_BytsPerSec] |
1087 | ; mov cx, word [BPB_BytsPerSec] |
1087 | ;end |
1088 | ;end |
1088 | xor dx, dx |
1089 | xor dx, dx |
1089 | mul cx |
1090 | mul cx |
1090 | shl ax, 1 |
1091 | shl ax, 1 |
1091 | mov cx, 3 |
1092 | mov cx, 3 |
1092 | div cx ; now ax - number of clusters in FAT12 |
1093 | div cx ; now ax - number of clusters in FAT12 |
1093 | mov word [end_of_FAT], ax |
1094 | mov word [end_of_FAT], ax |
1094 | 1095 | ||
1095 | ; load first FAT table |
1096 | ; load first FAT table |
1096 | mov cx, 0x0002 ; startcyl,startsector ; TODO!!!!! |
1097 | mov cx, 0x0002 ; startcyl,startsector ; TODO!!!!! |
1097 | xor dx, dx ; starthead,drive |
1098 | xor dx, dx ; starthead,drive |
1098 | mov al, byte [BPB_FATSz16] ; no of sectors to read |
1099 | mov al, byte [BPB_FATSz16] ; no of sectors to read |
1099 | add bx, word [BPB_BytsPerSec] ; es:bx -> data area |
1100 | add bx, word [BPB_BytsPerSec] ; es:bx -> data area |
1100 | call boot_read_floppy |
1101 | call boot_read_floppy |
1101 | mov bx, 0xB000 |
1102 | mov bx, 0xB000 |
1102 | 1103 | ||
1103 | ; and copy them to extended memory |
1104 | ; and copy them to extended memory |
1104 | mov si, movedesc |
1105 | mov si, movedesc |
1105 | mov [si+8*2+3], bh ; from |
1106 | mov [si+8*2+3], bh ; from |
1106 | 1107 | ||
1107 | mov ax, word [BPB_BytsPerSec] |
1108 | mov ax, word [BPB_BytsPerSec] |
1108 | shr ax, 1 ; words per sector |
1109 | shr ax, 1 ; words per sector |
1109 | mov cx, word [BPB_RsvdSecCnt] |
1110 | mov cx, word [BPB_RsvdSecCnt] |
1110 | add cx, word [BPB_FATSz16] |
1111 | add cx, word [BPB_FATSz16] |
1111 | mul cx |
1112 | mul cx |
1112 | push ax ; save to stack count of words in boot+FAT |
1113 | push ax ; save to stack count of words in boot+FAT |
1113 | xchg ax, cx |
1114 | xchg ax, cx |
1114 | 1115 | ||
1115 | push es |
1116 | push es |
1116 | push ds |
1117 | push ds |
1117 | pop es |
1118 | pop es |
1118 | mov ah, 0x87 |
1119 | mov ah, 0x87 |
1119 | int 0x15 |
1120 | int 0x15 |
1120 | pop es |
1121 | pop es |
1121 | test ah, ah |
1122 | test ah, ah |
1122 | jz @f |
1123 | jz @f |
1123 | sayerr_floppy: |
1124 | sayerr_floppy: |
1124 | mov dx, 0x3f2 |
1125 | mov dx, 0x3f2 |
1125 | mov al, 0 |
1126 | mov al, 0 |
1126 | out dx, al |
1127 | out dx, al |
1127 | sayerr_memmove: |
1128 | sayerr_memmove: |
1128 | mov si, memmovefailed |
1129 | mov si, memmovefailed |
1129 | jmp sayerr_plain |
1130 | jmp sayerr_plain |
1130 | @@: |
1131 | @@: |
1131 | pop ax ; restore from stack count of words in boot+FAT |
1132 | pop ax ; restore from stack count of words in boot+FAT |
1132 | shl ax, 1 ; make bytes count from count of words |
1133 | shl ax, 1 ; make bytes count from count of words |
1133 | and eax, 0ffffh |
1134 | and eax, 0ffffh |
1134 | add dword [si+8*3+2], eax |
1135 | add dword [si+8*3+2], eax |
1135 | 1136 | ||
1136 | ; copy first FAT to second copy |
1137 | ; copy first FAT to second copy |
1137 | ; TODO: BPB_NumFATs !!!!! |
1138 | ; TODO: BPB_NumFATs !!!!! |
1138 | add bx, word [BPB_BytsPerSec] ; !!! TODO: may be need multiply by BPB_RsvdSecCnt !!! |
1139 | add bx, word [BPB_BytsPerSec] ; !!! TODO: may be need multiply by BPB_RsvdSecCnt !!! |
1139 | mov byte [si+8*2+3], bh ; bx - begin of FAT |
1140 | mov byte [si+8*2+3], bh ; bx - begin of FAT |
1140 | 1141 | ||
1141 | mov ax, word [BPB_BytsPerSec] |
1142 | mov ax, word [BPB_BytsPerSec] |
1142 | shr ax, 1 ; words per sector |
1143 | shr ax, 1 ; words per sector |
1143 | mov cx, word [BPB_FATSz16] |
1144 | mov cx, word [BPB_FATSz16] |
1144 | mul cx |
1145 | mul cx |
1145 | mov cx, ax ; cx - count of words in FAT |
1146 | mov cx, ax ; cx - count of words in FAT |
1146 | 1147 | ||
1147 | push es |
1148 | push es |
1148 | push ds |
1149 | push ds |
1149 | pop es |
1150 | pop es |
1150 | mov ah, 0x87 |
1151 | mov ah, 0x87 |
1151 | int 0x15 |
1152 | int 0x15 |
1152 | pop es |
1153 | pop es |
1153 | test ah, ah |
1154 | test ah, ah |
1154 | jnz sayerr_floppy |
1155 | jnz sayerr_floppy |
1155 | 1156 | ||
1156 | mov ax, cx |
1157 | mov ax, cx |
1157 | shl ax, 1 |
1158 | shl ax, 1 |
1158 | and eax, 0ffffh ; ax - count of bytes in FAT |
1159 | and eax, 0ffffh ; ax - count of bytes in FAT |
1159 | add dword [si+8*3+2], eax |
1160 | add dword [si+8*3+2], eax |
1160 | 1161 | ||
1161 | ; reading RootDir |
1162 | ; reading RootDir |
1162 | ; TODO: BPB_NumFATs |
1163 | ; TODO: BPB_NumFATs |
1163 | add bx, ax |
1164 | add bx, ax |
1164 | add bx, 100h |
1165 | add bx, 100h |
1165 | and bx, 0ff00h ; bx - place in buffer to write RootDir |
1166 | and bx, 0ff00h ; bx - place in buffer to write RootDir |
1166 | push bx |
1167 | push bx |
1167 | 1168 | ||
1168 | mov bx, word [BPB_BytsPerSec] |
1169 | mov bx, word [BPB_BytsPerSec] |
1169 | shr bx, 5 ; divide bx by 32 |
1170 | shr bx, 5 ; divide bx by 32 |
1170 | mov ax, word [BPB_RootEntCnt] |
1171 | mov ax, word [BPB_RootEntCnt] |
1171 | xor dx, dx |
1172 | xor dx, dx |
1172 | div bx |
1173 | div bx |
1173 | push ax ; ax - count of RootDir sectors |
1174 | push ax ; ax - count of RootDir sectors |
1174 | 1175 | ||
1175 | mov ax, word [BPB_FATSz16] |
1176 | mov ax, word [BPB_FATSz16] |
1176 | xor cx, cx |
1177 | xor cx, cx |
1177 | mov cl, byte [BPB_NumFATs] |
1178 | mov cl, byte [BPB_NumFATs] |
1178 | mul cx |
1179 | mul cx |
1179 | add ax, word [BPB_RsvdSecCnt] ; ax - first sector of RootDir |
1180 | add ax, word [BPB_RsvdSecCnt] ; ax - first sector of RootDir |
1180 | 1181 | ||
1181 | mov word [FirstDataSector], ax |
1182 | mov word [FirstDataSector], ax |
1182 | pop bx |
1183 | pop bx |
1183 | push bx |
1184 | push bx |
1184 | add word [FirstDataSector], bx ; Begin of data region of floppy |
1185 | add word [FirstDataSector], bx ; Begin of data region of floppy |
1185 | 1186 | ||
1186 | ; read RootDir |
1187 | ; read RootDir |
1187 | call conv_abs_to_THS |
1188 | call conv_abs_to_THS |
1188 | pop ax |
1189 | pop ax |
1189 | pop bx ; place in buffer to write |
1190 | pop bx ; place in buffer to write |
1190 | push ax |
1191 | push ax |
1191 | call boot_read_floppy ; read RootDir into buffer |
1192 | call boot_read_floppy ; read RootDir into buffer |
1192 | ; copy RootDir |
1193 | ; copy RootDir |
1193 | mov byte [si+8*2+3], bh ; from buffer |
1194 | mov byte [si+8*2+3], bh ; from buffer |
1194 | pop ax ; ax = count of RootDir sectors |
1195 | pop ax ; ax = count of RootDir sectors |
1195 | mov cx, word [BPB_BytsPerSec] |
1196 | mov cx, word [BPB_BytsPerSec] |
1196 | mul cx |
1197 | mul cx |
1197 | shr ax, 1 |
1198 | shr ax, 1 |
1198 | mov cx, ax ; count of words to copy |
1199 | mov cx, ax ; count of words to copy |
1199 | push es |
1200 | push es |
1200 | push ds |
1201 | push ds |
1201 | pop es |
1202 | pop es |
1202 | mov ah, 0x87 |
1203 | mov ah, 0x87 |
1203 | int 0x15 |
1204 | int 0x15 |
1204 | pop es |
1205 | pop es |
1205 | 1206 | ||
1206 | mov ax, cx |
1207 | mov ax, cx |
1207 | shl ax, 1 |
1208 | shl ax, 1 |
1208 | and eax, 0ffffh ; ax - count of bytes in RootDir |
1209 | and eax, 0ffffh ; ax - count of bytes in RootDir |
1209 | add dword [si+8*3+2], eax ; add count of bytes copied |
1210 | add dword [si+8*3+2], eax ; add count of bytes copied |
1210 | 1211 | ||
1211 | ; Reading data clusters from floppy |
1212 | ; Reading data clusters from floppy |
1212 | mov byte [si+8*2+3], bh |
1213 | mov byte [si+8*2+3], bh |
1213 | push bx |
1214 | push bx |
1214 | 1215 | ||
1215 | mov di, 2 ; First data cluster |
1216 | mov di, 2 ; First data cluster |
1216 | .read_loop: |
1217 | .read_loop: |
1217 | mov bx, di |
1218 | mov bx, di |
1218 | shr bx, 1 ; bx+di = di*1.5 |
1219 | shr bx, 1 ; bx+di = di*1.5 |
1219 | jnc .even |
1220 | jnc .even |
1220 | test word [es:bx+di+0xB200], 0xFFF0 ; TODO: may not be 0xB200 !!! |
1221 | test word [es:bx+di+0xB200], 0xFFF0 ; TODO: may not be 0xB200 !!! |
1221 | jmp @f |
1222 | jmp @f |
1222 | .even: |
1223 | .even: |
1223 | test word [es:bx+di+0xB200], 0xFFF ; TODO: may not be 0xB200 !!! |
1224 | test word [es:bx+di+0xB200], 0xFFF ; TODO: may not be 0xB200 !!! |
1224 | 1225 | ||
1225 | @@: |
1226 | @@: |
1226 | jz .skip |
1227 | jz .skip |
1227 | ; read cluster di |
1228 | ; read cluster di |
1228 | ;.read: |
1229 | ;.read: |
1229 | ;conv cluster di to abs. sector ax |
1230 | ;conv cluster di to abs. sector ax |
1230 | ; ax = (N-2) * BPB_SecPerClus + FirstDataSector |
1231 | ; ax = (N-2) * BPB_SecPerClus + FirstDataSector |
1231 | mov ax, di |
1232 | mov ax, di |
1232 | sub ax, 2 |
1233 | sub ax, 2 |
1233 | xor bx, bx |
1234 | xor bx, bx |
1234 | mov bl, byte [BPB_SecPerClus] |
1235 | mov bl, byte [BPB_SecPerClus] |
1235 | mul bx |
1236 | mul bx |
1236 | add ax, word [FirstDataSector] |
1237 | add ax, word [FirstDataSector] |
1237 | call conv_abs_to_THS |
1238 | call conv_abs_to_THS |
1238 | pop bx |
1239 | pop bx |
1239 | push bx |
1240 | push bx |
1240 | mov al, byte [BPB_SecPerClus] ; number of sectors in cluster |
1241 | mov al, byte [BPB_SecPerClus] ; number of sectors in cluster |
1241 | call boot_read_floppy |
1242 | call boot_read_floppy |
1242 | push es |
1243 | push es |
1243 | push ds |
1244 | push ds |
1244 | pop es |
1245 | pop es |
1245 | pusha |
1246 | pusha |
1246 | ; |
1247 | ; |
1247 | mov ax, word [BPB_BytsPerSec] |
1248 | mov ax, word [BPB_BytsPerSec] |
1248 | xor cx, cx |
1249 | xor cx, cx |
1249 | mov cl, byte [BPB_SecPerClus] |
1250 | mov cl, byte [BPB_SecPerClus] |
1250 | mul cx |
1251 | mul cx |
1251 | shr ax, 1 ; ax = (BPB_BytsPerSec * BPB_SecPerClus)/2 |
1252 | shr ax, 1 ; ax = (BPB_BytsPerSec * BPB_SecPerClus)/2 |
1252 | mov cx, ax ; number of words to copy (count words in cluster) |
1253 | mov cx, ax ; number of words to copy (count words in cluster) |
1253 | ; |
1254 | ; |
1254 | mov ah, 0x87 |
1255 | mov ah, 0x87 |
1255 | int 0x15 ; copy data |
1256 | int 0x15 ; copy data |
1256 | test ah, ah |
1257 | test ah, ah |
1257 | popa |
1258 | popa |
1258 | pop es |
1259 | pop es |
1259 | jnz sayerr_floppy |
1260 | jnz sayerr_floppy |
1260 | ; skip cluster di |
1261 | ; skip cluster di |
1261 | .skip: |
1262 | .skip: |
1262 | mov ax, word [BPB_BytsPerSec] |
1263 | mov ax, word [BPB_BytsPerSec] |
1263 | xor cx, cx |
1264 | xor cx, cx |
1264 | mov cl, byte [BPB_SecPerClus] |
1265 | mov cl, byte [BPB_SecPerClus] |
1265 | mul cx |
1266 | mul cx |
1266 | and eax, 0ffffh ; ax - count of bytes in cluster |
1267 | and eax, 0ffffh ; ax - count of bytes in cluster |
1267 | add dword [si+8*3+2], eax |
1268 | add dword [si+8*3+2], eax |
1268 | 1269 | ||
1269 | mov ax, word [end_of_FAT] ; max cluster number |
1270 | mov ax, word [end_of_FAT] ; max cluster number |
1270 | pusha |
1271 | pusha |
1271 | ; draw percentage |
1272 | ; draw percentage |
1272 | ; total clusters: ax |
1273 | ; total clusters: ax |
1273 | ; read clusters: di |
1274 | ; read clusters: di |
1274 | xchg ax, di |
1275 | xchg ax, di |
1275 | mov cx, 100 |
1276 | mov cx, 100 |
1276 | mul cx |
1277 | mul cx |
1277 | div di |
1278 | div di |
1278 | aam |
1279 | aam |
1279 | xchg al, ah |
1280 | xchg al, ah |
1280 | add ax, '00' |
1281 | add ax, '00' |
1281 | mov si, pros |
1282 | mov si, pros |
1282 | cmp [si], ax |
1283 | cmp [si], ax |
1283 | jz @f |
1284 | jz @f |
1284 | mov [si], ax |
1285 | mov [si], ax |
1285 | call printplain |
1286 | call printplain |
1286 | @@: |
1287 | @@: |
1287 | popa |
1288 | popa |
1288 | inc di |
1289 | inc di |
1289 | cmp di, word [end_of_FAT] ; max number of cluster |
1290 | cmp di, word [end_of_FAT] ; max number of cluster |
1290 | jnz .read_loop |
1291 | jnz .read_loop |
1291 | pop bx ; clear stack |
1292 | pop bx ; clear stack |
1292 | 1293 | ||
1293 | ok_sys_on_floppy: |
1294 | ok_sys_on_floppy: |
1294 | mov si, backspace2 |
1295 | mov si, backspace2 |
1295 | call printplain |
1296 | call printplain |
1296 | mov si, okt |
1297 | mov si, okt |
1297 | call printplain |
1298 | call printplain |
1298 | no_sys_on_floppy: |
1299 | no_sys_on_floppy: |
1299 | xor ax, ax ; reset drive |
1300 | xor ax, ax ; reset drive |
1300 | xor dx, dx |
1301 | xor dx, dx |
1301 | int 0x13 |
1302 | int 0x13 |
1302 | mov dx, 0x3f2 ; floppy motor off |
1303 | mov dx, 0x3f2 ; floppy motor off |
1303 | mov al, 0 |
1304 | mov al, 0 |
1304 | out dx, al |
1305 | out dx, al |
1305 | 1306 | ||
1306 | if defined extended_primary_loader |
1307 | if defined extended_primary_loader |
1307 | cmp [es:BOOT_LO.dev], 1 |
1308 | cmp [es:BOOT_LO.dev], 1 |
1308 | jne no_sys_from_primary |
1309 | jne no_sys_from_primary |
1309 | ; load kolibri.img using callback from primary loader |
1310 | ; load kolibri.img using callback from primary loader |
1310 | and word [movedesc + 24 + 2], 0 |
1311 | and word [movedesc + 24 + 2], 0 |
1311 | mov byte [movedesc + 24 + 4], 10h |
1312 | mov byte [movedesc + 24 + 4], 10h |
1312 | ; read in blocks of 64K until file is fully loaded |
1313 | ; read in blocks of 64K until file is fully loaded |
1313 | mov ax, 1 |
1314 | mov ax, 1 |
1314 | .repeat: |
1315 | .repeat: |
1315 | mov di, image_file_struct |
1316 | mov di, image_file_struct |
1316 | call [bootcallback] |
1317 | call [bootcallback] |
1317 | push cs |
1318 | push cs |
1318 | pop ds |
1319 | pop ds |
1319 | push cs |
1320 | push cs |
1320 | pop es |
1321 | pop es |
1321 | cmp bx, 1 |
1322 | cmp bx, 1 |
1322 | ja sayerr_badsect |
1323 | ja sayerr_badsect |
1323 | push bx |
1324 | push bx |
1324 | mov si, movedesc |
1325 | mov si, movedesc |
1325 | and word [si + 16 + 2], 0 |
1326 | and word [si + 16 + 2], 0 |
1326 | mov byte [si + 16 + 4], 4 |
1327 | mov byte [si + 16 + 4], 4 |
1327 | mov ah, 87h |
1328 | mov ah, 87h |
1328 | mov cx, 8000h |
1329 | mov cx, 8000h |
1329 | int 15h |
1330 | int 15h |
1330 | pop bx |
1331 | pop bx |
1331 | test ah, ah |
1332 | test ah, ah |
1332 | jnz sayerr_memmove |
1333 | jnz sayerr_memmove |
1333 | inc byte [si + 24 + 4] |
1334 | inc byte [si + 24 + 4] |
1334 | test bx, bx |
1335 | test bx, bx |
1335 | jz no_sys_from_primary |
1336 | jz no_sys_from_primary |
1336 | mov ax, 2 |
1337 | mov ax, 2 |
1337 | jmp .repeat |
1338 | jmp .repeat |
1338 | no_sys_from_primary: |
1339 | no_sys_from_primary: |
1339 | end if |
1340 | end if |
1340 | 1341 | ||
1341 | ; SET GRAPHICS |
1342 | ; SET GRAPHICS |
1342 | 1343 | ||
1343 | xor ax, ax |
1344 | xor ax, ax |
1344 | mov es, ax |
1345 | mov es, ax |
1345 | 1346 | ||
1346 | mov ax, [es:BOOT_LO.vesa_mode] ; vga & 320x200 |
1347 | mov ax, [es:BOOT_LO.vesa_mode] ; vga & 320x200 |
1347 | mov bx, ax |
1348 | mov bx, ax |
1348 | cmp ax, 0x13 |
1349 | cmp ax, 0x13 |
1349 | je setgr |
1350 | je setgr |
1350 | cmp ax, 0x12 |
1351 | cmp ax, 0x12 |
1351 | je setgr |
1352 | je setgr |
1352 | mov ax, 0x4f02 ; Vesa |
1353 | mov ax, 0x4f02 ; Vesa |
1353 | setgr: |
1354 | setgr: |
1354 | int 0x10 |
1355 | int 0x10 |
1355 | test ah, ah |
1356 | test ah, ah |
1356 | mov si, fatalsel |
1357 | mov si, fatalsel |
1357 | jnz v_mode_error |
1358 | jnz v_mode_error |
1358 | ; set mode 0x12 graphics registers: |
1359 | ; set mode 0x12 graphics registers: |
1359 | cmp bx, 0x12 |
1360 | cmp bx, 0x12 |
1360 | jne gmok2 |
1361 | jne gmok2 |
1361 | 1362 | ||
1362 | mov al, 0x05 |
1363 | mov al, 0x05 |
1363 | mov dx, 0x03ce |
1364 | mov dx, 0x03ce |
1364 | push dx |
1365 | push dx |
1365 | out dx, al ; select GDC mode register |
1366 | out dx, al ; select GDC mode register |
1366 | mov al, 0x02 |
1367 | mov al, 0x02 |
1367 | inc dx |
1368 | inc dx |
1368 | out dx, al ; set write mode 2 |
1369 | out dx, al ; set write mode 2 |
1369 | 1370 | ||
1370 | mov al, 0x02 |
1371 | mov al, 0x02 |
1371 | mov dx, 0x03c4 |
1372 | mov dx, 0x03c4 |
1372 | out dx, al ; select VGA sequencer map mask register |
1373 | out dx, al ; select VGA sequencer map mask register |
1373 | mov al, 0x0f |
1374 | mov al, 0x0f |
1374 | inc dx |
1375 | inc dx |
1375 | out dx, al ; set mask for all planes 0-3 |
1376 | out dx, al ; set mask for all planes 0-3 |
1376 | 1377 | ||
1377 | mov al, 0x08 |
1378 | mov al, 0x08 |
1378 | pop dx |
1379 | pop dx |
1379 | out dx, al ; select GDC bit mask register |
1380 | out dx, al ; select GDC bit mask register |
1380 | ; for writes to 0x03cf |
1381 | ; for writes to 0x03cf |
1381 | gmok2: |
1382 | gmok2: |
1382 | push ds |
1383 | push ds |
1383 | pop es |
1384 | pop es |