Rev 5565 | Only display areas with differences | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 5565 | Rev 5984 | ||
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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: 5565 $ |
14 | $Revision: 5984 $ |
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, 3000h |
179 | mov ax, (TMP_STACK_TOP and 0xF0000) shr 4 |
180 | mov ss, ax |
180 | mov ss, ax |
181 | mov sp, 0EC00h |
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 | ; \begin{diamond}[02.12.2005] |
277 | ; \begin{diamond}[02.12.2005] |
278 | ; if bootloader sets ax = 'KL', then ds:si points to loader block |
278 | ; if bootloader sets ax = 'KL', then ds:si points to loader block |
279 | cmp ax, 'KL' |
279 | cmp ax, 'KL' |
280 | jnz @f |
280 | jnz @f |
281 | mov word [cs:cfgmanager.loader_block], si |
281 | mov word [cs:cfgmanager.loader_block], si |
282 | mov word [cs:cfgmanager.loader_block+2], ds |
282 | mov word [cs:cfgmanager.loader_block+2], ds |
283 | @@: |
283 | @@: |
284 | ; \end{diamond}[02.12.2005] |
284 | ; \end{diamond}[02.12.2005] |
285 | 285 | ||
286 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source hard disk |
286 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source hard disk |
287 | ; (see comment to bx_from_load) |
287 | ; (see comment to bx_from_load) |
288 | cmp cx, 'HA' |
288 | cmp cx, 'HA' |
289 | jnz no_hd_load |
289 | jnz no_hd_load |
290 | cmp dx, 'RD' |
290 | cmp dx, 'RD' |
291 | jnz no_hd_load |
291 | jnz no_hd_load |
292 | mov word [cs:bx_from_load], bx ; {SPraid}[13.03.2007] |
292 | mov word [cs:bx_from_load], bx ; {SPraid}[13.03.2007] |
293 | no_hd_load: |
293 | no_hd_load: |
294 | 294 | ||
295 | ; set up stack |
295 | ; set up stack |
296 | mov ax, 3000h |
296 | mov ax, (TMP_STACK_TOP and 0xF0000) shr 4 |
297 | mov ss, ax |
297 | mov ss, ax |
298 | mov sp, 0EC00h |
298 | mov sp, TMP_STACK_TOP and 0xFFFF |
299 | ; set up segment registers |
299 | ; set up segment registers |
300 | push cs |
300 | push cs |
301 | pop ds |
301 | pop ds |
302 | push cs |
302 | push cs |
303 | pop es |
303 | pop es |
304 | end if |
304 | end if |
305 | 305 | ||
306 | ; set videomode |
306 | ; set videomode |
307 | mov ax, 3 |
307 | mov ax, 3 |
308 | int 0x10 |
308 | int 0x10 |
309 | 309 | ||
310 | if lang eq ru |
310 | if lang eq ru |
311 | ; Load & set russian VGA font (RU.INC) |
311 | ; Load & set russian VGA font (RU.INC) |
312 | mov bp, RU_FNT1 ; RU_FNT1 - First part |
312 | mov bp, RU_FNT1 ; RU_FNT1 - First part |
313 | mov bx, 1000h ; 768 bytes |
313 | mov bx, 1000h ; 768 bytes |
314 | mov cx, 30h ; 48 symbols |
314 | mov cx, 30h ; 48 symbols |
315 | mov dx, 80h ; 128 - position of first symbol |
315 | mov dx, 80h ; 128 - position of first symbol |
316 | mov ax, 1100h |
316 | mov ax, 1100h |
317 | int 10h |
317 | int 10h |
318 | 318 | ||
319 | mov bp, RU_FNT2 ; RU_FNT2 -Second part |
319 | mov bp, RU_FNT2 ; RU_FNT2 -Second part |
320 | mov bx, 1000h ; 512 bytes |
320 | mov bx, 1000h ; 512 bytes |
321 | mov cx, 20h ; 32 symbols |
321 | mov cx, 20h ; 32 symbols |
322 | mov dx, 0E0h ; 224 - position of first symbol |
322 | mov dx, 0E0h ; 224 - position of first symbol |
323 | mov ax, 1100h |
323 | mov ax, 1100h |
324 | int 10h |
324 | int 10h |
325 | ; End set VGA russian font |
325 | ; End set VGA russian font |
326 | else if lang eq et |
326 | else if lang eq et |
327 | mov bp, ET_FNT ; ET_FNT1 |
327 | mov bp, ET_FNT ; ET_FNT1 |
328 | mov bx, 1000h ; |
328 | mov bx, 1000h ; |
329 | mov cx, 255 ; 256 symbols |
329 | mov cx, 255 ; 256 symbols |
330 | xor dx, dx ; 0 - position of first symbol |
330 | xor dx, dx ; 0 - position of first symbol |
331 | mov ax, 1100h |
331 | mov ax, 1100h |
332 | int 10h |
332 | int 10h |
333 | end if |
333 | end if |
334 | 334 | ||
335 | ; draw frames |
335 | ; draw frames |
336 | push 0xb800 |
336 | push 0xb800 |
337 | pop es |
337 | pop es |
338 | xor di, di |
338 | xor di, di |
339 | mov ah, 1*16+15 |
339 | mov ah, 1*16+15 |
340 | 340 | ||
341 | ; draw top |
341 | ; draw top |
342 | mov si, d80x25_top |
342 | mov si, d80x25_top |
343 | mov cx, d80x25_top_num * 80 |
343 | mov cx, d80x25_top_num * 80 |
344 | @@: |
344 | @@: |
345 | lodsb |
345 | lodsb |
346 | stosw |
346 | stosw |
347 | loop @b |
347 | loop @b |
348 | ; draw spaces |
348 | ; draw spaces |
349 | mov si, space_msg |
349 | mov si, space_msg |
350 | mov dx, 25 - d80x25_top_num - d80x25_bottom_num |
350 | mov dx, 25 - d80x25_top_num - d80x25_bottom_num |
351 | dfl1: |
351 | dfl1: |
352 | push si |
352 | push si |
353 | mov cx, 80 |
353 | mov cx, 80 |
354 | @@: |
354 | @@: |
355 | lodsb |
355 | lodsb |
356 | stosw |
356 | stosw |
357 | loop @b |
357 | loop @b |
358 | pop si |
358 | pop si |
359 | dec dx |
359 | dec dx |
360 | jnz dfl1 |
360 | jnz dfl1 |
361 | ; draw bottom |
361 | ; draw bottom |
362 | mov si, d80x25_bottom |
362 | mov si, d80x25_bottom |
363 | mov cx, d80x25_bottom_num * 80 |
363 | mov cx, d80x25_bottom_num * 80 |
364 | @@: |
364 | @@: |
365 | lodsb |
365 | lodsb |
366 | stosw |
366 | stosw |
367 | loop @b |
367 | loop @b |
368 | 368 | ||
369 | mov byte [space_msg+80], 0 ; now space_msg is null terminated |
369 | mov byte [space_msg+80], 0 ; now space_msg is null terminated |
370 | 370 | ||
371 | _setcursor d80x25_top_num,0 |
371 | _setcursor d80x25_top_num,0 |
372 | 372 | ||
373 | 373 | ||
374 | ; TEST FOR 386+ |
374 | ; TEST FOR 386+ |
375 | 375 | ||
376 | mov bx, 0x4000 |
376 | mov bx, 0x4000 |
377 | pushf |
377 | pushf |
378 | pop ax |
378 | pop ax |
379 | mov dx, ax |
379 | mov dx, ax |
380 | xor ax, bx |
380 | xor ax, bx |
381 | push ax |
381 | push ax |
382 | popf |
382 | popf |
383 | pushf |
383 | pushf |
384 | pop ax |
384 | pop ax |
385 | and ax, bx |
385 | and ax, bx |
386 | and dx, bx |
386 | and dx, bx |
387 | cmp ax, dx |
387 | cmp ax, dx |
388 | jnz cpugood |
388 | jnz cpugood |
389 | mov si, not386 |
389 | mov si, not386 |
390 | sayerr: |
390 | sayerr: |
391 | call print |
391 | call print |
392 | jmp $ |
392 | jmp $ |
393 | cpugood: |
393 | cpugood: |
394 | 394 | ||
395 | push 0 |
395 | push 0 |
396 | popf |
396 | popf |
397 | 397 | ||
398 | ; set up esp |
398 | ; set up esp |
399 | movzx esp, sp |
399 | movzx esp, sp |
400 | 400 | ||
401 | push 0 |
401 | push 0 |
402 | pop es |
402 | pop es |
403 | 403 | ||
404 | xor cx, cx |
404 | xor cx, cx |
405 | @@: |
405 | @@: |
406 | in al, 64h |
406 | in al, 64h |
407 | test al, 2 |
407 | test al, 2 |
408 | loopnz @b |
408 | loopnz @b |
409 | 409 | ||
410 | mov al, 0xf6 ; Сброс клавиатуры, разрешить сканирование |
410 | mov al, 0xf6 ; Сброс клавиатуры, разрешить сканирование |
411 | out 0x60, al |
411 | out 0x60, al |
412 | xor cx, cx |
412 | xor cx, cx |
413 | @@: |
413 | @@: |
414 | in al, 64h |
414 | in al, 64h |
415 | test al, 1 |
415 | test al, 1 |
416 | loopz @b |
416 | loopz @b |
417 | in al, 0x60 |
417 | in al, 0x60 |
418 | 418 | ||
419 | ;;;/diamond today 5.02.2008 |
419 | ;;;/diamond today 5.02.2008 |
420 | ; set keyboard typematic rate & delay |
420 | ; set keyboard typematic rate & delay |
421 | mov al, 0xf3 |
421 | mov al, 0xf3 |
422 | out 0x60, al |
422 | out 0x60, al |
423 | xor cx, cx |
423 | xor cx, cx |
424 | @@: |
424 | @@: |
425 | in al, 64h |
425 | in al, 64h |
426 | test al, 1 |
426 | test al, 1 |
427 | loopz @b |
427 | loopz @b |
428 | in al, 0x60 |
428 | in al, 0x60 |
429 | mov al, 0 |
429 | mov al, 0 |
430 | out 0x60, al |
430 | out 0x60, al |
431 | xor cx, cx |
431 | xor cx, cx |
432 | @@: |
432 | @@: |
433 | in al, 64h |
433 | in al, 64h |
434 | test al, 1 |
434 | test al, 1 |
435 | loopz @b |
435 | loopz @b |
436 | in al, 0x60 |
436 | in al, 0x60 |
437 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
437 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
438 | sti |
438 | sti |
439 | ; --------------- APM --------------------- |
439 | ; --------------- APM --------------------- |
440 | and word [es:BOOT_APM_VERSION], 0 ; ver = 0.0 (APM not found) |
440 | and word [es:BOOT_APM_VERSION], 0 ; ver = 0.0 (APM not found) |
441 | mov ax, 0x5300 |
441 | mov ax, 0x5300 |
442 | xor bx, bx |
442 | xor bx, bx |
443 | int 0x15 |
443 | int 0x15 |
444 | jc apm_end ; APM not found |
444 | jc apm_end ; APM not found |
445 | test cx, 2 |
445 | test cx, 2 |
446 | jz apm_end ; APM 32-bit protected-mode interface not supported |
446 | jz apm_end ; APM 32-bit protected-mode interface not supported |
447 | mov [es:BOOT_APM_VERSION], ax ; Save APM Version |
447 | mov [es:BOOT_APM_VERSION], ax ; Save APM Version |
448 | mov [es:BOOT_APM_FLAGS], cx ; Save APM flags |
448 | mov [es:BOOT_APM_FLAGS], cx ; Save APM flags |
449 | 449 | ||
450 | ; Write APM ver ---- |
450 | ; Write APM ver ---- |
451 | and ax, 0xf0f |
451 | and ax, 0xf0f |
452 | add ax, '00' |
452 | add ax, '00' |
453 | mov si, msg_apm |
453 | mov si, msg_apm |
454 | mov [si + 5], ah |
454 | mov [si + 5], ah |
455 | mov [si + 7], al |
455 | mov [si + 7], al |
456 | _setcursor 0, 3 |
456 | _setcursor 0, 3 |
457 | call printplain |
457 | call printplain |
458 | ; ------------------ |
458 | ; ------------------ |
459 | 459 | ||
460 | mov ax, 0x5304 ; Disconnect interface |
460 | mov ax, 0x5304 ; Disconnect interface |
461 | xor bx, bx |
461 | xor bx, bx |
462 | int 0x15 |
462 | int 0x15 |
463 | mov ax, 0x5303 ; Connect 32 bit mode interface |
463 | mov ax, 0x5303 ; Connect 32 bit mode interface |
464 | xor bx, bx |
464 | xor bx, bx |
465 | int 0x15 |
465 | int 0x15 |
466 | 466 | ||
467 | mov [es:BOOT_APM_ENTRY], ebx |
467 | mov [es:BOOT_APM_ENTRY], ebx |
468 | mov [es:BOOT_APM_CODE_32], ax |
468 | mov [es:BOOT_APM_CODE_32], ax |
469 | mov [es:BOOT_APM_CODE_16], cx |
469 | mov [es:BOOT_APM_CODE_16], cx |
470 | mov [es:BOOT_APM_DATA_16], dx |
470 | mov [es:BOOT_APM_DATA_16], dx |
471 | 471 | ||
472 | apm_end: |
472 | apm_end: |
473 | _setcursor d80x25_top_num, 0 |
473 | _setcursor d80x25_top_num, 0 |
474 | 474 | ||
475 | if ~ defined extended_primary_loader |
475 | if ~ defined extended_primary_loader |
476 | ;CHECK current of code |
476 | ;CHECK current of code |
477 | cmp [cfgmanager.loader_block], -1 |
477 | cmp [cfgmanager.loader_block], -1 |
478 | jz noloaderblock |
478 | jz noloaderblock |
479 | les bx, [cfgmanager.loader_block] |
479 | les bx, [cfgmanager.loader_block] |
480 | cmp byte [es:bx], 1 |
480 | cmp byte [es:bx], 1 |
481 | mov si, loader_block_error |
481 | mov si, loader_block_error |
482 | jnz sayerr |
482 | jnz sayerr |
483 | push 0 |
483 | push 0 |
484 | pop es |
484 | pop es |
485 | end if |
485 | end if |
486 | 486 | ||
487 | noloaderblock: |
487 | noloaderblock: |
488 | ; DISPLAY VESA INFORMATION |
488 | ; DISPLAY VESA INFORMATION |
489 | call print_vesa_info |
489 | call print_vesa_info |
490 | call calc_vmodes_table |
490 | call calc_vmodes_table |
491 | call check_first_parm ;check and enable cursor_pos |
491 | call check_first_parm ;check and enable cursor_pos |
492 | 492 | ||
493 | ; \begin{diamond}[30.11.2005] |
493 | ; \begin{diamond}[30.11.2005] |
494 | cfgmanager: |
494 | cfgmanager: |
495 | ; settings: |
495 | ; settings: |
496 | ; a) preboot_graph = graphical mode |
496 | ; a) preboot_graph = graphical mode |
497 | ; preboot_gprobe = probe this mode? |
497 | ; preboot_gprobe = probe this mode? |
498 | ; b) preboot_biosdisk = use BIOS disks through V86 emulation? // (earlier was: preboot_dma = use DMA access?) |
498 | ; 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 // (earlier was: preboot_vrrm = use VRR?) |
499 | ; c) preboot_debug = duplicates kernel debug output to the screen // (earlier was: preboot_vrrm = use VRR?) |
500 | ; // VRR is an obsolete functionality, used only with CRT monitors: increase display frequency by reducing screen resolution |
500 | ; // VRR is an obsolete functionality, used only with CRT monitors: increase display frequency by reducing screen resolution |
501 | ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
501 | ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
502 | ; e) preboot_device = from where to boot? |
502 | ; e) preboot_device = from where to boot? |
503 | 503 | ||
504 | ; determine default settings |
504 | ; determine default settings |
505 | if ~ defined extended_primary_loader |
505 | if ~ defined extended_primary_loader |
506 | mov [.bSettingsChanged], 0 |
506 | mov [.bSettingsChanged], 0 |
507 | end if |
507 | end if |
508 | 508 | ||
509 | ;.preboot_gr_end: |
509 | ;.preboot_gr_end: |
510 | mov di, preboot_device |
510 | mov di, preboot_device |
511 | ; if image in memory is present and [preboot_device] is uninitialized, |
511 | ; if image in memory is present and [preboot_device] is uninitialized, |
512 | ; set it to use this preloaded image |
512 | ; set it to use this preloaded image |
513 | cmp byte [di], 0 |
513 | cmp byte [di], 0 |
514 | jnz .preboot_device_inited |
514 | jnz .preboot_device_inited |
515 | if defined extended_primary_loader |
515 | if defined extended_primary_loader |
516 | inc byte [di] |
516 | inc byte [di] |
517 | cmp byte [bootdevice], 'f' ; floppy? |
517 | cmp byte [bootdevice], 'f' ; floppy? |
518 | jz .preboot_device_inited |
518 | jz .preboot_device_inited |
519 | inc byte [di] |
519 | inc byte [di] |
520 | else |
520 | else |
521 | cmp [.loader_block], -1 |
521 | cmp [.loader_block], -1 |
522 | jz @f |
522 | jz @f |
523 | les bx, [.loader_block] |
523 | les bx, [.loader_block] |
524 | test byte [es:bx+1], 1 |
524 | test byte [es:bx+1], 1 |
525 | jz @f |
525 | jz @f |
526 | mov byte [di], 3 |
526 | mov byte [di], 3 |
527 | jmp .preboot_device_inited |
527 | jmp .preboot_device_inited |
528 | @@: |
528 | @@: |
529 | ; otherwise, set [preboot_device] to 1 (default value - boot from floppy) |
529 | ; otherwise, set [preboot_device] to 1 (default value - boot from floppy) |
530 | mov byte [di], 1 |
530 | mov byte [di], 1 |
531 | end if |
531 | end if |
532 | .preboot_device_inited: |
532 | .preboot_device_inited: |
533 | ; following 4 lines set variables to 1 if its current value is 0 |
533 | ; following 4 lines set variables to 1 if its current value is 0 |
534 | cmp byte [di+preboot_dma-preboot_device], 1 |
534 | cmp byte [di+preboot_dma-preboot_device], 1 |
535 | adc byte [di+preboot_dma-preboot_device], 0 |
535 | adc byte [di+preboot_dma-preboot_device], 0 |
536 | cmp byte [di+preboot_launcher-preboot_device], 1 ; Start LAUNCHER by default |
536 | cmp byte [di+preboot_launcher-preboot_device], 1 ; Start LAUNCHER by default |
537 | adc byte [di+preboot_launcher-preboot_device], 0 |
537 | adc byte [di+preboot_launcher-preboot_device], 0 |
538 | ; cmp byte [di+preboot_biosdisk-preboot_device], 1 |
538 | ; cmp byte [di+preboot_biosdisk-preboot_device], 1 |
539 | ; adc byte [di+preboot_biosdisk-preboot_device], 0 |
539 | ; adc byte [di+preboot_biosdisk-preboot_device], 0 |
540 | ;; default value for VRR is OFF |
540 | ;; default value for VRR is OFF |
541 | ; cmp byte [di+preboot_vrrm-preboot_device], 0 |
541 | ; cmp byte [di+preboot_vrrm-preboot_device], 0 |
542 | ; jnz @f |
542 | ; jnz @f |
543 | ; mov byte [di+preboot_vrrm-preboot_device], 2 |
543 | ; mov byte [di+preboot_vrrm-preboot_device], 2 |
544 | ;@@: |
544 | ;@@: |
545 | ; notify user |
545 | ; notify user |
546 | _setcursor 5,2 |
546 | _setcursor 5,2 |
547 | 547 | ||
548 | mov si, linef |
548 | mov si, linef |
549 | call printplain |
549 | call printplain |
550 | mov si, start_msg |
550 | mov si, start_msg |
551 | call print |
551 | call print |
552 | mov si, time_msg |
552 | mov si, time_msg |
553 | call print |
553 | call print |
554 | ; get start time |
554 | ; get start time |
555 | call .gettime |
555 | call .gettime |
556 | mov [.starttime], eax |
556 | mov [.starttime], eax |
557 | mov word [.timer], .newtimer |
557 | mov word [.timer], .newtimer |
558 | mov word [.timer+2], cs |
558 | mov word [.timer+2], cs |
559 | .printcfg: |
559 | .printcfg: |
560 | 560 | ||
561 | _setcursor 9,0 |
561 | _setcursor 9,0 |
562 | mov si, current_cfg_msg |
562 | mov si, current_cfg_msg |
563 | call print |
563 | call print |
564 | mov si, curvideo_msg |
564 | mov si, curvideo_msg |
565 | call print |
565 | call print |
566 | 566 | ||
567 | call draw_current_vmode |
567 | call draw_current_vmode |
568 | 568 | ||
569 | mov si, usebd_msg |
569 | mov si, usebd_msg |
570 | cmp [preboot_biosdisk], 1 |
570 | cmp [preboot_biosdisk], 1 |
571 | call .say_on_off |
571 | call .say_on_off |
572 | ; mov si, vrrm_msg |
572 | ; mov si, vrrm_msg |
573 | ; cmp [preboot_vrrm], 1 |
573 | ; cmp [preboot_vrrm], 1 |
574 | ; call .say_on_off |
574 | ; call .say_on_off |
575 | mov si, debug_mode_msg |
575 | mov si, debug_mode_msg |
576 | cmp [preboot_debug], 1 |
576 | cmp [preboot_debug], 1 |
577 | call .say_on_off |
577 | call .say_on_off |
578 | mov si, launcher_msg |
578 | mov si, launcher_msg |
579 | cmp [preboot_launcher], 1 |
579 | cmp [preboot_launcher], 1 |
580 | call .say_on_off |
580 | call .say_on_off |
581 | mov si, preboot_device_msg |
581 | mov si, preboot_device_msg |
582 | call print |
582 | call print |
583 | mov al, [preboot_device] |
583 | mov al, [preboot_device] |
584 | if defined extended_primary_loader |
584 | if defined extended_primary_loader |
585 | and eax, 3 |
585 | and eax, 3 |
586 | else |
586 | else |
587 | and eax, 7 |
587 | and eax, 7 |
588 | end if |
588 | end if |
589 | mov si, [preboot_device_msgs+eax*2] |
589 | mov si, [preboot_device_msgs+eax*2] |
590 | call printplain |
590 | call printplain |
591 | .show_remarks: |
591 | .show_remarks: |
592 | ; show remarks in gray color |
592 | ; show remarks in gray color |
593 | mov di, ((21-num_remarks)*80 + 2)*2 |
593 | mov di, ((21-num_remarks)*80 + 2)*2 |
594 | push 0xB800 |
594 | push 0xB800 |
595 | pop es |
595 | pop es |
596 | mov cx, num_remarks |
596 | mov cx, num_remarks |
597 | mov si, remarks |
597 | mov si, remarks |
598 | .write_remarks: |
598 | .write_remarks: |
599 | lodsw |
599 | lodsw |
600 | push si |
600 | push si |
601 | xchg ax, si |
601 | xchg ax, si |
602 | mov ah, 1*16+7 ; background: blue (1), foreground: gray (7) |
602 | mov ah, 1*16+7 ; background: blue (1), foreground: gray (7) |
603 | push di |
603 | push di |
604 | .write_remark: |
604 | .write_remark: |
605 | lodsb |
605 | lodsb |
606 | test al, al |
606 | test al, al |
607 | jz @f |
607 | jz @f |
608 | stosw |
608 | stosw |
609 | jmp .write_remark |
609 | jmp .write_remark |
610 | @@: |
610 | @@: |
611 | pop di |
611 | pop di |
612 | pop si |
612 | pop si |
613 | add di, 80*2 |
613 | add di, 80*2 |
614 | loop .write_remarks |
614 | loop .write_remarks |
615 | .wait: |
615 | .wait: |
616 | _setcursor 25,0 ; out of screen |
616 | _setcursor 25,0 ; out of screen |
617 | ; set timer interrupt handler |
617 | ; set timer interrupt handler |
618 | cli |
618 | cli |
619 | push 0 |
619 | push 0 |
620 | pop es |
620 | pop es |
621 | push dword [es:8*4] |
621 | push dword [es:8*4] |
622 | pop dword [.oldtimer] |
622 | pop dword [.oldtimer] |
623 | push dword [.timer] |
623 | push dword [.timer] |
624 | pop dword [es:8*4] |
624 | pop dword [es:8*4] |
625 | ; mov eax, [es:8*4] |
625 | ; mov eax, [es:8*4] |
626 | ; mov [.oldtimer], eax |
626 | ; mov [.oldtimer], eax |
627 | ; mov eax, [.timer] |
627 | ; mov eax, [.timer] |
628 | ; mov [es:8*4], eax |
628 | ; mov [es:8*4], eax |
629 | sti |
629 | sti |
630 | ; wait for keypressed |
630 | ; wait for keypressed |
631 | xor ax, ax |
631 | xor ax, ax |
632 | int 16h |
632 | int 16h |
633 | push ax |
633 | push ax |
634 | ; restore timer interrupt |
634 | ; restore timer interrupt |
635 | ; push 0 |
635 | ; push 0 |
636 | ; pop es |
636 | ; pop es |
637 | mov eax, [.oldtimer] |
637 | mov eax, [.oldtimer] |
638 | mov [es:8*4], eax |
638 | mov [es:8*4], eax |
639 | mov [.timer], eax |
639 | mov [.timer], eax |
640 | 640 | ||
641 | _setcursor 7,0 |
641 | _setcursor 7,0 |
642 | mov si, space_msg |
642 | mov si, space_msg |
643 | call printplain |
643 | call printplain |
644 | ; clear remarks and restore normal attributes |
644 | ; clear remarks and restore normal attributes |
645 | push es |
645 | push es |
646 | mov di, ((21-num_remarks)*80 + 2)*2 |
646 | mov di, ((21-num_remarks)*80 + 2)*2 |
647 | push 0xB800 |
647 | push 0xB800 |
648 | pop es |
648 | pop es |
649 | mov cx, num_remarks |
649 | mov cx, num_remarks |
650 | mov ax, ' ' + (1*16 + 15)*100h |
650 | mov ax, ' ' + (1*16 + 15)*100h |
651 | @@: |
651 | @@: |
652 | push cx |
652 | push cx |
653 | mov cx, 76 |
653 | mov cx, 76 |
654 | rep stosw |
654 | rep stosw |
655 | pop cx |
655 | pop cx |
656 | add di, 4*2 |
656 | add di, 4*2 |
657 | loop @b |
657 | loop @b |
658 | pop es |
658 | pop es |
659 | pop ax |
659 | pop ax |
660 | ; switch on key |
660 | ; switch on key |
661 | cmp al, 13 |
661 | cmp al, 13 |
662 | jz .continue |
662 | jz .continue |
663 | or al, 20h |
663 | or al, 20h |
664 | cmp al, 'a' ; select graphical mode |
664 | cmp al, 'a' ; select graphical mode |
665 | jz .change_a |
665 | jz .change_a |
666 | cmp al, 'q' ; Trick to make 'A' key on azerty keyboard work |
666 | cmp al, 'q' ; Trick to make 'A' key on azerty keyboard work |
667 | je .change_a |
667 | je .change_a |
668 | cmp al, 'b' ; use BIOS disks? // (selecting YES will make BIOS disks visible as /bd) |
668 | cmp al, 'b' ; use BIOS disks? // (selecting YES will make BIOS disks visible as /bd) |
669 | jz .change_b |
669 | jz .change_b |
670 | cmp al, 'c' ; load kernel in debug mode? // (earlier was: use VRR?) |
670 | cmp al, 'c' ; load kernel in debug mode? // (earlier was: use VRR?) |
671 | jz .change_c |
671 | jz .change_c |
672 | cmp al, 'd' ; start launcher after kernel is loaded? |
672 | cmp al, 'd' ; start launcher after kernel is loaded? |
673 | jz .change_d |
673 | jz .change_d |
674 | cmp al, 'e' ; select boot origin |
674 | cmp al, 'e' ; select boot origin |
675 | jnz .show_remarks |
675 | jnz .show_remarks |
676 | ; e) preboot_device = from where to boot? |
676 | ; e) preboot_device = from where to boot? |
677 | if defined extended_primary_loader |
677 | if defined extended_primary_loader |
678 | _ask_question bdev,'12',preboot_device ; range accepted for answer: 1-2 |
678 | _ask_question bdev,'12',preboot_device ; range accepted for answer: 1-2 |
679 | else |
679 | else |
680 | _ask_question bdev,'14',preboot_device ; range accepted for answer: 1-4 |
680 | _ask_question bdev,'14',preboot_device ; range accepted for answer: 1-4 |
681 | end if |
681 | end if |
682 | _setcursor 14,0 |
682 | _setcursor 14,0 |
683 | 683 | ||
684 | .d: |
684 | .d: |
685 | if ~ defined extended_primary_loader |
685 | if ~ defined extended_primary_loader |
686 | mov [.bSettingsChanged], 1 |
686 | mov [.bSettingsChanged], 1 |
687 | end if |
687 | end if |
688 | .esc_pressed: |
688 | .esc_pressed: |
689 | call clear_vmodes_table ;clear vmodes_table |
689 | call clear_vmodes_table ;clear vmodes_table |
690 | jmp .printcfg |
690 | jmp .printcfg |
691 | 691 | ||
692 | .change_a: |
692 | .change_a: |
693 | call clear_vmodes_table ;clear vmodes_table |
693 | call clear_vmodes_table ;clear vmodes_table |
694 | 694 | ||
695 | mov si, word [cursor_pos] |
695 | mov si, word [cursor_pos] |
696 | mov word [cursor_pos_old], si |
696 | mov word [cursor_pos_old], si |
697 | .loops: |
697 | .loops: |
698 | call draw_vmodes_table |
698 | call draw_vmodes_table |
699 | _setcursor 25,0 ; out of screen |
699 | _setcursor 25,0 ; out of screen |
700 | xor ax, ax |
700 | xor ax, ax |
701 | int 0x16 |
701 | int 0x16 |
702 | ; call clear_table_cursor ;clear current position of cursor |
702 | ; call clear_table_cursor ;clear current position of cursor |
703 | 703 | ||
704 | mov si, word [cursor_pos] |
704 | mov si, word [cursor_pos] |
705 | 705 | ||
706 | cmp al, 27 ; If ESC was pressed, do not change the value |
706 | cmp al, 27 ; If ESC was pressed, do not change the value |
707 | jnz @f ; Just exit the resolution selection box |
707 | jnz @f ; Just exit the resolution selection box |
708 | 708 | ||
709 | mov si, word [cursor_pos_old] |
709 | mov si, word [cursor_pos_old] |
710 | mov word [cursor_pos], si |
710 | mov word [cursor_pos], si |
711 | jmp .esc_pressed |
711 | jmp .esc_pressed |
712 | @@: |
712 | @@: |
713 | cmp ah, 0x48;x,0x48E0 ; up |
713 | cmp ah, 0x48;x,0x48E0 ; up |
714 | jne .down |
714 | jne .down |
715 | cmp si, modes_table |
715 | cmp si, modes_table |
716 | jbe .loops |
716 | jbe .loops |
717 | sub word [cursor_pos], size_of_step |
717 | sub word [cursor_pos], size_of_step |
718 | jmp .loops |
718 | jmp .loops |
719 | 719 | ||
720 | .down: |
720 | .down: |
721 | cmp ah, 0x50;x,0x50E0 ; down |
721 | cmp ah, 0x50;x,0x50E0 ; down |
722 | jne .pgup |
722 | jne .pgup |
723 | cmp word[es:si+10], -1 |
723 | cmp word[es:si+10], -1 |
724 | je .loops |
724 | je .loops |
725 | add word [cursor_pos], size_of_step |
725 | add word [cursor_pos], size_of_step |
726 | jmp .loops |
726 | jmp .loops |
727 | 727 | ||
728 | .pgup: |
728 | .pgup: |
729 | cmp ah, 0x49 ; page up |
729 | cmp ah, 0x49 ; page up |
730 | jne .pgdn |
730 | jne .pgdn |
731 | sub si, size_of_step*long_v_table |
731 | sub si, size_of_step*long_v_table |
732 | cmp si, modes_table |
732 | cmp si, modes_table |
733 | jae @f |
733 | jae @f |
734 | mov si, modes_table |
734 | mov si, modes_table |
735 | @@: |
735 | @@: |
736 | mov word [cursor_pos], si |
736 | mov word [cursor_pos], si |
737 | mov si, word [home_cursor] |
737 | mov si, word [home_cursor] |
738 | sub si, size_of_step*long_v_table |
738 | sub si, size_of_step*long_v_table |
739 | cmp si, modes_table |
739 | cmp si, modes_table |
740 | jae @f |
740 | jae @f |
741 | mov si, modes_table |
741 | mov si, modes_table |
742 | @@: |
742 | @@: |
743 | mov word [home_cursor], si |
743 | mov word [home_cursor], si |
744 | jmp .loops |
744 | jmp .loops |
745 | 745 | ||
746 | .pgdn: |
746 | .pgdn: |
747 | cmp ah, 0x51 ; page down |
747 | cmp ah, 0x51 ; page down |
748 | jne .enter |
748 | jne .enter |
749 | mov ax, [end_cursor] |
749 | mov ax, [end_cursor] |
750 | add si, size_of_step*long_v_table |
750 | add si, size_of_step*long_v_table |
751 | cmp si, ax |
751 | cmp si, ax |
752 | jb @f |
752 | jb @f |
753 | mov si, ax |
753 | mov si, ax |
754 | sub si, size_of_step |
754 | sub si, size_of_step |
755 | @@: |
755 | @@: |
756 | mov word [cursor_pos], si |
756 | mov word [cursor_pos], si |
757 | mov si, word [home_cursor] |
757 | mov si, word [home_cursor] |
758 | sub ax, size_of_step*long_v_table |
758 | sub ax, size_of_step*long_v_table |
759 | add si, size_of_step*long_v_table |
759 | add si, size_of_step*long_v_table |
760 | cmp si, ax |
760 | cmp si, ax |
761 | jb @f |
761 | jb @f |
762 | mov si, ax |
762 | mov si, ax |
763 | @@: |
763 | @@: |
764 | mov word [home_cursor], si |
764 | mov word [home_cursor], si |
765 | jmp .loops |
765 | jmp .loops |
766 | 766 | ||
767 | .enter: |
767 | .enter: |
768 | cmp al, 0x0D;x,0x1C0D ; enter |
768 | cmp al, 0x0D;x,0x1C0D ; enter |
769 | jne .loops |
769 | jne .loops |
770 | push word [cursor_pos] |
770 | push word [cursor_pos] |
771 | pop bp |
771 | pop bp |
772 | push word [es:bp] |
772 | push word [es:bp] |
773 | pop word [x_save] |
773 | pop word [x_save] |
774 | push word [es:bp+2] |
774 | push word [es:bp+2] |
775 | pop word [y_save] |
775 | pop word [y_save] |
776 | push word [es:bp+6] |
776 | push word [es:bp+6] |
777 | pop word [number_vm] |
777 | pop word [number_vm] |
778 | mov word [preboot_graph], bp ;save choose |
778 | mov word [preboot_graph], bp ;save choose |
779 | 779 | ||
780 | jmp .d |
780 | jmp .d |
781 | 781 | ||
782 | .change_b: ; b) preboot_biosdisk = use BIOS disks through V86 emulation? |
782 | .change_b: ; b) preboot_biosdisk = use BIOS disks through V86 emulation? |
783 | ; _setcursor 16,0 |
783 | ; _setcursor 16,0 |
784 | ; mov si, ask_dma // (earlier was: preboot_dma = use DMA access?) |
784 | ; mov si, ask_dma // (earlier was: preboot_dma = use DMA access?) |
785 | ; call print |
785 | ; call print |
786 | ; mov bx, '13' ; range accepted for answer: 1-3 |
786 | ; mov bx, '13' ; range accepted for answer: 1-3 |
787 | ; call getkey |
787 | ; call getkey |
788 | ; mov [preboot_dma], al |
788 | ; mov [preboot_dma], al |
789 | _ask_question ask_bd,'12',preboot_biosdisk ; range accepted for answer: 1-2 |
789 | _ask_question ask_bd,'12',preboot_biosdisk ; range accepted for answer: 1-2 |
790 | _setcursor 11,0 |
790 | _setcursor 11,0 |
791 | jmp .d |
791 | jmp .d |
792 | ;.change_c: ; // VRR is an obsolete functionality, used only with CRT monitors |
792 | ;.change_c: ; // VRR is an obsolete functionality, used only with CRT monitors |
793 | ; _setcursor 16,0 |
793 | ; _setcursor 16,0 |
794 | ; mov si, vrrmprint |
794 | ; mov si, vrrmprint |
795 | ; call print |
795 | ; call print |
796 | ; mov bx, '12' ; range accepted for answer: 1-2 |
796 | ; mov bx, '12' ; range accepted for answer: 1-2 |
797 | ; call getkey |
797 | ; call getkey |
798 | ; mov [preboot_vrrm], al |
798 | ; mov [preboot_vrrm], al |
799 | ; _setcursor 12,0 |
799 | ; _setcursor 12,0 |
800 | ; jmp .d |
800 | ; jmp .d |
801 | .change_c: ; c) preboot_debug = duplicates kernel debug output to the screen |
801 | .change_c: ; c) preboot_debug = duplicates kernel debug output to the screen |
802 | _ask_question ask_debug,'12',preboot_debug ; range accepted for answer: 1-2 |
802 | _ask_question ask_debug,'12',preboot_debug ; range accepted for answer: 1-2 |
803 | _setcursor 12,0 |
803 | _setcursor 12,0 |
804 | jmp .d |
804 | jmp .d |
805 | .change_d: ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
805 | .change_d: ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
806 | _ask_question ask_launcher,'12',preboot_launcher ; range accepted for answer: 1-2 |
806 | _ask_question ask_launcher,'12',preboot_launcher ; range accepted for answer: 1-2 |
807 | _setcursor 13,0 |
807 | _setcursor 13,0 |
808 | jmp .d |
808 | jmp .d |
809 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
809 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
810 | .say_on_off: |
810 | .say_on_off: |
811 | pushf |
811 | pushf |
812 | call print |
812 | call print |
813 | mov si, on_msg |
813 | mov si, on_msg |
814 | popf |
814 | popf |
815 | jz @f |
815 | jz @f |
816 | mov si, off_msg |
816 | mov si, off_msg |
817 | @@: |
817 | @@: |
818 | jmp printplain |
818 | jmp printplain |
819 | ; novesa and vervesa strings are not used at the moment of executing this code |
819 | ; novesa and vervesa strings are not used at the moment of executing this code |
820 | virtual at novesa |
820 | virtual at novesa |
821 | .oldtimer dd ? |
821 | .oldtimer dd ? |
822 | .starttime dd ? |
822 | .starttime dd ? |
823 | if ~ defined extended_primary_loader |
823 | if ~ defined extended_primary_loader |
824 | .bSettingsChanged db ? |
824 | .bSettingsChanged db ? |
825 | end if |
825 | end if |
826 | .timer dd ? |
826 | .timer dd ? |
827 | end virtual |
827 | end virtual |
828 | if ~ defined extended_primary_loader |
828 | if ~ defined extended_primary_loader |
829 | .loader_block dd -1 |
829 | .loader_block dd -1 |
830 | end if |
830 | end if |
831 | .gettime: |
831 | .gettime: |
832 | mov ah, 0 |
832 | mov ah, 0 |
833 | int 1Ah |
833 | int 1Ah |
834 | xchg ax, cx |
834 | xchg ax, cx |
835 | shl eax, 10h |
835 | shl eax, 10h |
836 | xchg ax, dx |
836 | xchg ax, dx |
837 | ret |
837 | ret |
838 | .newtimer: |
838 | .newtimer: |
839 | push ds |
839 | push ds |
840 | push cs |
840 | push cs |
841 | pop ds |
841 | pop ds |
842 | pushf |
842 | pushf |
843 | call [.oldtimer] |
843 | call [.oldtimer] |
844 | pushad |
844 | pushad |
845 | call .gettime |
845 | call .gettime |
846 | sub eax, [.starttime] |
846 | sub eax, [.starttime] |
847 | if defined extended_primary_loader |
847 | if defined extended_primary_loader |
848 | sub ax, [preboot_timeout] |
848 | sub ax, [preboot_timeout] |
849 | else |
849 | else |
850 | sub ax, 18*5 |
850 | sub ax, 18*5 |
851 | end if |
851 | end if |
852 | jae .timergo |
852 | jae .timergo |
853 | neg ax |
853 | neg ax |
854 | add ax, 18-1 |
854 | add ax, 18-1 |
855 | mov bx, 18 |
855 | mov bx, 18 |
856 | xor dx, dx |
856 | xor dx, dx |
857 | div bx |
857 | div bx |
858 | if lang eq ru |
858 | if lang eq ru |
859 | ; подождите 5 секунд, 4/3/2 секунды, 1 секунду |
859 | ; подождите 5 секунд, 4/3/2 секунды, 1 секунду |
860 | cmp al, 5 |
860 | cmp al, 5 |
861 | mov cl, ' ' |
861 | mov cl, ' ' |
862 | jae @f |
862 | jae @f |
863 | cmp al, 1 |
863 | cmp al, 1 |
864 | mov cl, 0xE3 ; 'у' in cp866 |
864 | mov cl, 0xE3 ; 'у' in cp866 |
865 | jz @f |
865 | jz @f |
866 | mov cl, 0xEB ; 'ы' in cp866 |
866 | mov cl, 0xEB ; 'ы' in cp866 |
867 | @@: |
867 | @@: |
868 | mov [time_str+9], cl |
868 | mov [time_str+9], cl |
869 | else if lang eq et |
869 | else if lang eq et |
870 | cmp al, 1 |
870 | cmp al, 1 |
871 | ja @f |
871 | ja @f |
872 | mov byte [time_str+9], ' ' |
872 | mov byte [time_str+9], ' ' |
873 | mov byte [time_str+10], ' ' |
873 | mov byte [time_str+10], ' ' |
874 | @@: |
874 | @@: |
875 | else if lang eq sp |
875 | else if lang eq sp |
876 | ; esperar 5/4/3/2 segundos, 1 segundo |
876 | ; esperar 5/4/3/2 segundos, 1 segundo |
877 | cmp al, 1 |
877 | cmp al, 1 |
878 | mov cl, 's' |
878 | mov cl, 's' |
879 | ja @f |
879 | ja @f |
880 | mov cl, ' ' |
880 | mov cl, ' ' |
881 | @@: |
881 | @@: |
882 | mov [time_str+10], cl |
882 | mov [time_str+10], cl |
883 | else |
883 | else |
884 | ; wait 5/4/3/2 seconds, 1 second |
884 | ; wait 5/4/3/2 seconds, 1 second |
885 | cmp al, 1 |
885 | cmp al, 1 |
886 | mov cl, 's' |
886 | mov cl, 's' |
887 | ja @f |
887 | ja @f |
888 | mov cl, ' ' |
888 | mov cl, ' ' |
889 | @@: |
889 | @@: |
890 | mov [time_str+9], cl |
890 | mov [time_str+9], cl |
891 | end if |
891 | end if |
892 | add al, '0' |
892 | add al, '0' |
893 | mov [time_str+1], al |
893 | mov [time_str+1], al |
894 | mov si, time_msg |
894 | mov si, time_msg |
895 | _setcursor 7,0 |
895 | _setcursor 7,0 |
896 | call print |
896 | call print |
897 | _setcursor 25,0 |
897 | _setcursor 25,0 |
898 | popad |
898 | popad |
899 | pop ds |
899 | pop ds |
900 | iret |
900 | iret |
901 | .timergo: |
901 | .timergo: |
902 | push 0 |
902 | push 0 |
903 | pop es |
903 | pop es |
904 | mov eax, [.oldtimer] |
904 | mov eax, [.oldtimer] |
905 | mov [es:8*4], eax |
905 | mov [es:8*4], eax |
906 | mov sp, 0EC00h |
906 | mov sp, 0EC00h |
907 | .continue: |
907 | .continue: |
908 | sti |
908 | sti |
909 | _setcursor 6,0 |
909 | _setcursor 6,0 |
910 | mov si, space_msg |
910 | mov si, space_msg |
911 | call printplain |
911 | call printplain |
912 | call printplain |
912 | call printplain |
913 | _setcursor 6,0 |
913 | _setcursor 6,0 |
914 | mov si, loading_msg |
914 | mov si, loading_msg |
915 | call print |
915 | call print |
916 | _setcursor 16,0 |
916 | _setcursor 16,0 |
917 | if ~ defined extended_primary_loader |
917 | if ~ defined extended_primary_loader |
918 | cmp [.bSettingsChanged], 0 |
918 | cmp [.bSettingsChanged], 0 |
919 | jz .load |
919 | jz .load |
920 | cmp [.loader_block], -1 |
920 | cmp [.loader_block], -1 |
921 | jz .load |
921 | jz .load |
922 | les bx, [.loader_block] |
922 | les bx, [.loader_block] |
923 | mov eax, [es:bx+3] |
923 | mov eax, [es:bx+3] |
924 | push ds |
924 | push ds |
925 | pop es |
925 | pop es |
926 | test eax, eax |
926 | test eax, eax |
927 | jz .load |
927 | jz .load |
928 | push eax |
928 | push eax |
929 | mov si, save_quest |
929 | mov si, save_quest |
930 | call print |
930 | call print |
931 | .waityn: |
931 | .waityn: |
932 | mov ah, 0 |
932 | mov ah, 0 |
933 | int 16h |
933 | int 16h |
934 | or al, 20h |
934 | or al, 20h |
935 | cmp al, 'n' |
935 | cmp al, 'n' |
936 | jz .loadc |
936 | jz .loadc |
937 | if lang eq sp |
937 | if lang eq sp |
938 | cmp al, 's' |
938 | cmp al, 's' |
939 | else |
939 | else |
940 | cmp al, 'y' |
940 | cmp al, 'y' |
941 | end if |
941 | end if |
942 | jnz .waityn |
942 | jnz .waityn |
943 | call putchar |
943 | call putchar |
944 | mov byte [space_msg+80], 186 |
944 | mov byte [space_msg+80], 186 |
945 | 945 | ||
946 | pop eax |
946 | pop eax |
947 | push cs |
947 | push cs |
948 | push .cont |
948 | push .cont |
949 | push eax |
949 | push eax |
950 | retf ;call back |
950 | retf ;call back |
951 | .loadc: |
951 | .loadc: |
952 | pop eax |
952 | pop eax |
953 | .cont: |
953 | .cont: |
954 | push cs |
954 | push cs |
955 | pop ds |
955 | pop ds |
956 | mov si, space_msg |
956 | mov si, space_msg |
957 | mov byte [si+80], 0 |
957 | mov byte [si+80], 0 |
958 | _setcursor 16,0 |
958 | _setcursor 16,0 |
959 | call printplain |
959 | call printplain |
960 | _setcursor 16,0 |
960 | _setcursor 16,0 |
961 | .load: |
961 | .load: |
962 | end if |
962 | end if |
963 | ; \end{diamond}[02.12.2005] |
963 | ; \end{diamond}[02.12.2005] |
964 | 964 | ||
965 | ; ASK GRAPHICS MODE |
965 | ; ASK GRAPHICS MODE |
966 | 966 | ||
967 | call set_vmode |
967 | call set_vmode |
968 | 968 | ||
969 | ; GRAPHICS ACCELERATION |
969 | ; GRAPHICS ACCELERATION |
970 | ; force yes |
970 | ; force yes |
971 | mov [es:BOOT_MTRR], byte 1 |
971 | mov [es:BOOT_MTRR], byte 1 |
972 | 972 | ||
973 | ; DMA ACCESS TO HD |
973 | ; DMA ACCESS TO HD |
974 | 974 | ||
975 | mov al, [preboot_dma] |
975 | mov al, [preboot_dma] |
976 | mov [es:BOOT_DMA], al |
976 | mov [es:BOOT_DMA], al |
977 | 977 | ||
978 | ;; VRR_M USE |
978 | ;; VRR_M USE |
979 | ; |
979 | ; |
980 | ; mov al,[preboot_vrrm] |
980 | ; mov al,[preboot_vrrm] |
981 | ; mov [es:BOOT_VRR], al ;// 0x9030 |
981 | ; mov [es:BOOT_VRR], al ;// 0x9030 |
982 | 982 | ||
983 | ; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen. |
983 | ; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen. |
984 | mov al, [preboot_debug] |
984 | mov al, [preboot_debug] |
985 | mov [es:BOOT_DEBUG_PRINT], al ;// 0x901E |
985 | mov [es:BOOT_DEBUG_PRINT], al ;// 0x901E |
986 | 986 | ||
987 | ; Start the first app (right now it's LAUNCHER) after kernel is loaded? |
987 | ; Start the first app (right now it's LAUNCHER) after kernel is loaded? |
988 | mov al, [preboot_launcher] |
988 | mov al, [preboot_launcher] |
989 | mov [es:BOOT_LAUNCHER_START], al ;// 0x901D |
989 | mov [es:BOOT_LAUNCHER_START], al ;// 0x901D |
990 | 990 | ||
991 | ; BOOT DEVICE |
991 | ; BOOT DEVICE |
992 | 992 | ||
993 | mov al, [preboot_device] |
993 | mov al, [preboot_device] |
994 | dec al |
994 | dec al |
995 | mov [boot_dev], al |
995 | mov [boot_dev], al |
996 | 996 | ||
997 | ; GET MEMORY MAP |
997 | ; GET MEMORY MAP |
998 | include '../detect/biosmem.inc' |
998 | include '../detect/biosmem.inc' |
999 | 999 | ||
1000 | ; READ DISKETTE TO MEMORY |
1000 | ; READ DISKETTE TO MEMORY |
1001 | 1001 | ||
1002 | cmp [boot_dev], 0 |
1002 | cmp [boot_dev], 0 |
1003 | jne no_sys_on_floppy |
1003 | jne no_sys_on_floppy |
1004 | mov si, diskload |
1004 | mov si, diskload |
1005 | call print |
1005 | call print |
1006 | xor ax, ax ; reset drive |
1006 | xor ax, ax ; reset drive |
1007 | xor dx, dx |
1007 | xor dx, dx |
1008 | int 0x13 |
1008 | int 0x13 |
1009 | ; do we boot from CD-ROM? |
1009 | ; do we boot from CD-ROM? |
1010 | mov ah, 41h |
1010 | mov ah, 41h |
1011 | mov bx, 55AAh |
1011 | mov bx, 55AAh |
1012 | xor dx, dx |
1012 | xor dx, dx |
1013 | int 0x13 |
1013 | int 0x13 |
1014 | jc .nocd |
1014 | jc .nocd |
1015 | cmp bx, 0AA55h |
1015 | cmp bx, 0AA55h |
1016 | jnz .nocd |
1016 | jnz .nocd |
1017 | mov ah, 48h |
1017 | mov ah, 48h |
1018 | push ds |
1018 | push ds |
1019 | push es |
1019 | push es |
1020 | pop ds |
1020 | pop ds |
1021 | mov si, 0xa000 |
1021 | mov si, 0xa000 |
1022 | mov word [si], 30 |
1022 | mov word [si], 30 |
1023 | int 0x13 |
1023 | int 0x13 |
1024 | pop ds |
1024 | pop ds |
1025 | jc .nocd |
1025 | jc .nocd |
1026 | push ds |
1026 | push ds |
1027 | lds si, [es:si+26] |
1027 | lds si, [es:si+26] |
1028 | test byte [ds:si+10], 40h |
1028 | test byte [ds:si+10], 40h |
1029 | pop ds |
1029 | pop ds |
1030 | jz .nocd |
1030 | jz .nocd |
1031 | ; yes - read all floppy by 18 sectors |
1031 | ; yes - read all floppy by 18 sectors |
1032 | 1032 | ||
1033 | ; TODO: !!!! read only first sector and set variables !!!!! |
1033 | ; TODO: !!!! read only first sector and set variables !!!!! |
1034 | ; ... |
1034 | ; ... |
1035 | ; TODO: !!! then read flippy image track by track |
1035 | ; TODO: !!! then read flippy image track by track |
1036 | 1036 | ||
1037 | mov cx, 0x0001 ; startcyl,startsector |
1037 | mov cx, 0x0001 ; startcyl,startsector |
1038 | .a1: |
1038 | .a1: |
1039 | push cx dx |
1039 | push cx dx |
1040 | mov al, 18 |
1040 | mov al, 18 |
1041 | mov bx, 0xa000 |
1041 | mov bx, 0xa000 |
1042 | call boot_read_floppy |
1042 | call boot_read_floppy |
1043 | mov si, movedesc |
1043 | mov si, movedesc |
1044 | push es |
1044 | push es |
1045 | push ds |
1045 | push ds |
1046 | pop es |
1046 | pop es |
1047 | mov cx, 256*18 |
1047 | mov cx, 256*18 |
1048 | mov ah, 0x87 |
1048 | mov ah, 0x87 |
1049 | int 0x15 |
1049 | int 0x15 |
1050 | pop es |
1050 | pop es |
1051 | pop dx cx |
1051 | pop dx cx |
1052 | test ah, ah |
1052 | test ah, ah |
1053 | jnz sayerr_floppy |
1053 | jnz sayerr_floppy |
1054 | add dword [si+8*3+2], 512*18 |
1054 | add dword [si+8*3+2], 512*18 |
1055 | inc dh |
1055 | inc dh |
1056 | cmp dh, 2 |
1056 | cmp dh, 2 |
1057 | jnz .a1 |
1057 | jnz .a1 |
1058 | mov dh, 0 |
1058 | mov dh, 0 |
1059 | inc ch |
1059 | inc ch |
1060 | cmp ch, 80 |
1060 | cmp ch, 80 |
1061 | jae ok_sys_on_floppy |
1061 | jae ok_sys_on_floppy |
1062 | pusha |
1062 | pusha |
1063 | mov al, ch |
1063 | mov al, ch |
1064 | shr ch, 2 |
1064 | shr ch, 2 |
1065 | add al, ch |
1065 | add al, ch |
1066 | aam |
1066 | aam |
1067 | xchg al, ah |
1067 | xchg al, ah |
1068 | add ax, '00' |
1068 | add ax, '00' |
1069 | mov si, pros |
1069 | mov si, pros |
1070 | mov [si], ax |
1070 | mov [si], ax |
1071 | call printplain |
1071 | call printplain |
1072 | popa |
1072 | popa |
1073 | jmp .a1 |
1073 | jmp .a1 |
1074 | .nocd: |
1074 | .nocd: |
1075 | ; no - read only used sectors from floppy |
1075 | ; no - read only used sectors from floppy |
1076 | ; now load floppy image to memory |
1076 | ; now load floppy image to memory |
1077 | ; at first load boot sector and first FAT table |
1077 | ; at first load boot sector and first FAT table |
1078 | 1078 | ||
1079 | ; read only first sector and fill variables |
1079 | ; read only first sector and fill variables |
1080 | mov cx, 0x0001 ; first logical sector |
1080 | mov cx, 0x0001 ; first logical sector |
1081 | xor dx, dx ; head = 0, drive = 0 (a:) |
1081 | xor dx, dx ; head = 0, drive = 0 (a:) |
1082 | mov al, 1 ; read one sector |
1082 | mov al, 1 ; read one sector |
1083 | mov bx, 0xB000 ; es:bx -> data area |
1083 | mov bx, 0xB000 ; es:bx -> data area |
1084 | call boot_read_floppy |
1084 | call boot_read_floppy |
1085 | ; fill the necessary parameters to work with a floppy |
1085 | ; fill the necessary parameters to work with a floppy |
1086 | mov ax, word [es:bx+24] |
1086 | mov ax, word [es:bx+24] |
1087 | mov word [BPB_SecPerTrk], ax |
1087 | mov word [BPB_SecPerTrk], ax |
1088 | mov ax, word [es:bx+26] |
1088 | mov ax, word [es:bx+26] |
1089 | mov word [BPB_NumHeads], ax |
1089 | mov word [BPB_NumHeads], ax |
1090 | mov ax, word [es:bx+17] |
1090 | mov ax, word [es:bx+17] |
1091 | mov word [BPB_RootEntCnt], ax |
1091 | mov word [BPB_RootEntCnt], ax |
1092 | mov ax, word [es:bx+14] |
1092 | mov ax, word [es:bx+14] |
1093 | mov word [BPB_RsvdSecCnt], ax |
1093 | mov word [BPB_RsvdSecCnt], ax |
1094 | mov ax, word [es:bx+19] |
1094 | mov ax, word [es:bx+19] |
1095 | mov word [BPB_TotSec16], ax |
1095 | mov word [BPB_TotSec16], ax |
1096 | mov al, byte [es:bx+13] |
1096 | mov al, byte [es:bx+13] |
1097 | mov byte [BPB_SecPerClus], al |
1097 | mov byte [BPB_SecPerClus], al |
1098 | mov al, byte [es:bx+16] |
1098 | mov al, byte [es:bx+16] |
1099 | mov byte [BPB_NumFATs], al |
1099 | mov byte [BPB_NumFATs], al |
1100 | ; |
1100 | ; |
1101 | mov ax, word [es:bx+22] |
1101 | mov ax, word [es:bx+22] |
1102 | mov word [BPB_FATSz16], ax |
1102 | mov word [BPB_FATSz16], ax |
1103 | mov cx, word [es:bx+11] |
1103 | mov cx, word [es:bx+11] |
1104 | mov word [BPB_BytsPerSec], cx |
1104 | mov word [BPB_BytsPerSec], cx |
1105 | 1105 | ||
1106 | ; count of clusters in FAT12 ((size_of_FAT*2)/3) |
1106 | ; count of clusters in FAT12 ((size_of_FAT*2)/3) |
1107 | ; mov ax, word [BPB_FATSz16] |
1107 | ; mov ax, word [BPB_FATSz16] |
1108 | ; mov cx, word [BPB_BytsPerSec] |
1108 | ; mov cx, word [BPB_BytsPerSec] |
1109 | ;end |
1109 | ;end |
1110 | xor dx, dx |
1110 | xor dx, dx |
1111 | mul cx |
1111 | mul cx |
1112 | shl ax, 1 |
1112 | shl ax, 1 |
1113 | mov cx, 3 |
1113 | mov cx, 3 |
1114 | div cx ; now ax - number of clusters in FAT12 |
1114 | div cx ; now ax - number of clusters in FAT12 |
1115 | mov word [end_of_FAT], ax |
1115 | mov word [end_of_FAT], ax |
1116 | 1116 | ||
1117 | ; load first FAT table |
1117 | ; load first FAT table |
1118 | mov cx, 0x0002 ; startcyl,startsector ; TODO!!!!! |
1118 | mov cx, 0x0002 ; startcyl,startsector ; TODO!!!!! |
1119 | xor dx, dx ; starthead,drive |
1119 | xor dx, dx ; starthead,drive |
1120 | mov al, byte [BPB_FATSz16] ; no of sectors to read |
1120 | mov al, byte [BPB_FATSz16] ; no of sectors to read |
1121 | add bx, word [BPB_BytsPerSec] ; es:bx -> data area |
1121 | add bx, word [BPB_BytsPerSec] ; es:bx -> data area |
1122 | call boot_read_floppy |
1122 | call boot_read_floppy |
1123 | mov bx, 0xB000 |
1123 | mov bx, 0xB000 |
1124 | 1124 | ||
1125 | ; and copy them to extended memory |
1125 | ; and copy them to extended memory |
1126 | mov si, movedesc |
1126 | mov si, movedesc |
1127 | mov [si+8*2+3], bh ; from |
1127 | mov [si+8*2+3], bh ; from |
1128 | 1128 | ||
1129 | mov ax, word [BPB_BytsPerSec] |
1129 | mov ax, word [BPB_BytsPerSec] |
1130 | shr ax, 1 ; words per sector |
1130 | shr ax, 1 ; words per sector |
1131 | mov cx, word [BPB_RsvdSecCnt] |
1131 | mov cx, word [BPB_RsvdSecCnt] |
1132 | add cx, word [BPB_FATSz16] |
1132 | add cx, word [BPB_FATSz16] |
1133 | mul cx |
1133 | mul cx |
1134 | push ax ; save to stack count of words in boot+FAT |
1134 | push ax ; save to stack count of words in boot+FAT |
1135 | xchg ax, cx |
1135 | xchg ax, cx |
1136 | 1136 | ||
1137 | push es |
1137 | push es |
1138 | push ds |
1138 | push ds |
1139 | pop es |
1139 | pop es |
1140 | mov ah, 0x87 |
1140 | mov ah, 0x87 |
1141 | int 0x15 |
1141 | int 0x15 |
1142 | pop es |
1142 | pop es |
1143 | test ah, ah |
1143 | test ah, ah |
1144 | jz @f |
1144 | jz @f |
1145 | sayerr_floppy: |
1145 | sayerr_floppy: |
1146 | mov dx, 0x3f2 |
1146 | mov dx, 0x3f2 |
1147 | mov al, 0 |
1147 | mov al, 0 |
1148 | out dx, al |
1148 | out dx, al |
1149 | sayerr_memmove: |
1149 | sayerr_memmove: |
1150 | mov si, memmovefailed |
1150 | mov si, memmovefailed |
1151 | jmp sayerr_plain |
1151 | jmp sayerr_plain |
1152 | @@: |
1152 | @@: |
1153 | pop ax ; restore from stack count of words in boot+FAT |
1153 | pop ax ; restore from stack count of words in boot+FAT |
1154 | shl ax, 1 ; make bytes count from count of words |
1154 | shl ax, 1 ; make bytes count from count of words |
1155 | and eax, 0ffffh |
1155 | and eax, 0ffffh |
1156 | add dword [si+8*3+2], eax |
1156 | add dword [si+8*3+2], eax |
1157 | 1157 | ||
1158 | ; copy first FAT to second copy |
1158 | ; copy first FAT to second copy |
1159 | ; TODO: BPB_NumFATs !!!!! |
1159 | ; TODO: BPB_NumFATs !!!!! |
1160 | add bx, word [BPB_BytsPerSec] ; !!! TODO: may be need multiply by BPB_RsvdSecCnt !!! |
1160 | add bx, word [BPB_BytsPerSec] ; !!! TODO: may be need multiply by BPB_RsvdSecCnt !!! |
1161 | mov byte [si+8*2+3], bh ; bx - begin of FAT |
1161 | mov byte [si+8*2+3], bh ; bx - begin of FAT |
1162 | 1162 | ||
1163 | mov ax, word [BPB_BytsPerSec] |
1163 | mov ax, word [BPB_BytsPerSec] |
1164 | shr ax, 1 ; words per sector |
1164 | shr ax, 1 ; words per sector |
1165 | mov cx, word [BPB_FATSz16] |
1165 | mov cx, word [BPB_FATSz16] |
1166 | mul cx |
1166 | mul cx |
1167 | mov cx, ax ; cx - count of words in FAT |
1167 | mov cx, ax ; cx - count of words in FAT |
1168 | 1168 | ||
1169 | push es |
1169 | push es |
1170 | push ds |
1170 | push ds |
1171 | pop es |
1171 | pop es |
1172 | mov ah, 0x87 |
1172 | mov ah, 0x87 |
1173 | int 0x15 |
1173 | int 0x15 |
1174 | pop es |
1174 | pop es |
1175 | test ah, ah |
1175 | test ah, ah |
1176 | jnz sayerr_floppy |
1176 | jnz sayerr_floppy |
1177 | 1177 | ||
1178 | mov ax, cx |
1178 | mov ax, cx |
1179 | shl ax, 1 |
1179 | shl ax, 1 |
1180 | and eax, 0ffffh ; ax - count of bytes in FAT |
1180 | and eax, 0ffffh ; ax - count of bytes in FAT |
1181 | add dword [si+8*3+2], eax |
1181 | add dword [si+8*3+2], eax |
1182 | 1182 | ||
1183 | ; reading RootDir |
1183 | ; reading RootDir |
1184 | ; TODO: BPB_NumFATs |
1184 | ; TODO: BPB_NumFATs |
1185 | add bx, ax |
1185 | add bx, ax |
1186 | add bx, 100h |
1186 | add bx, 100h |
1187 | and bx, 0ff00h ; bx - place in buffer to write RootDir |
1187 | and bx, 0ff00h ; bx - place in buffer to write RootDir |
1188 | push bx |
1188 | push bx |
1189 | 1189 | ||
1190 | mov bx, word [BPB_BytsPerSec] |
1190 | mov bx, word [BPB_BytsPerSec] |
1191 | shr bx, 5 ; divide bx by 32 |
1191 | shr bx, 5 ; divide bx by 32 |
1192 | mov ax, word [BPB_RootEntCnt] |
1192 | mov ax, word [BPB_RootEntCnt] |
1193 | xor dx, dx |
1193 | xor dx, dx |
1194 | div bx |
1194 | div bx |
1195 | push ax ; ax - count of RootDir sectors |
1195 | push ax ; ax - count of RootDir sectors |
1196 | 1196 | ||
1197 | mov ax, word [BPB_FATSz16] |
1197 | mov ax, word [BPB_FATSz16] |
1198 | xor cx, cx |
1198 | xor cx, cx |
1199 | mov cl, byte [BPB_NumFATs] |
1199 | mov cl, byte [BPB_NumFATs] |
1200 | mul cx |
1200 | mul cx |
1201 | add ax, word [BPB_RsvdSecCnt] ; ax - first sector of RootDir |
1201 | add ax, word [BPB_RsvdSecCnt] ; ax - first sector of RootDir |
1202 | 1202 | ||
1203 | mov word [FirstDataSector], ax |
1203 | mov word [FirstDataSector], ax |
1204 | pop bx |
1204 | pop bx |
1205 | push bx |
1205 | push bx |
1206 | add word [FirstDataSector], bx ; Begin of data region of floppy |
1206 | add word [FirstDataSector], bx ; Begin of data region of floppy |
1207 | 1207 | ||
1208 | ; read RootDir |
1208 | ; read RootDir |
1209 | call conv_abs_to_THS |
1209 | call conv_abs_to_THS |
1210 | pop ax |
1210 | pop ax |
1211 | pop bx ; place in buffer to write |
1211 | pop bx ; place in buffer to write |
1212 | push ax |
1212 | push ax |
1213 | call boot_read_floppy ; read RootDir into buffer |
1213 | call boot_read_floppy ; read RootDir into buffer |
1214 | ; copy RootDir |
1214 | ; copy RootDir |
1215 | mov byte [si+8*2+3], bh ; from buffer |
1215 | mov byte [si+8*2+3], bh ; from buffer |
1216 | pop ax ; ax = count of RootDir sectors |
1216 | pop ax ; ax = count of RootDir sectors |
1217 | mov cx, word [BPB_BytsPerSec] |
1217 | mov cx, word [BPB_BytsPerSec] |
1218 | mul cx |
1218 | mul cx |
1219 | shr ax, 1 |
1219 | shr ax, 1 |
1220 | mov cx, ax ; count of words to copy |
1220 | mov cx, ax ; count of words to copy |
1221 | push es |
1221 | push es |
1222 | push ds |
1222 | push ds |
1223 | pop es |
1223 | pop es |
1224 | mov ah, 0x87 |
1224 | mov ah, 0x87 |
1225 | int 0x15 |
1225 | int 0x15 |
1226 | pop es |
1226 | pop es |
1227 | 1227 | ||
1228 | mov ax, cx |
1228 | mov ax, cx |
1229 | shl ax, 1 |
1229 | shl ax, 1 |
1230 | and eax, 0ffffh ; ax - count of bytes in RootDir |
1230 | and eax, 0ffffh ; ax - count of bytes in RootDir |
1231 | add dword [si+8*3+2], eax ; add count of bytes copied |
1231 | add dword [si+8*3+2], eax ; add count of bytes copied |
1232 | 1232 | ||
1233 | ; Reading data clusters from floppy |
1233 | ; Reading data clusters from floppy |
1234 | mov byte [si+8*2+3], bh |
1234 | mov byte [si+8*2+3], bh |
1235 | push bx |
1235 | push bx |
1236 | 1236 | ||
1237 | mov di, 2 ; First data cluster |
1237 | mov di, 2 ; First data cluster |
1238 | .read_loop: |
1238 | .read_loop: |
1239 | mov bx, di |
1239 | mov bx, di |
1240 | shr bx, 1 ; bx+di = di*1.5 |
1240 | shr bx, 1 ; bx+di = di*1.5 |
1241 | jnc .even |
1241 | jnc .even |
1242 | test word [es:bx+di+0xB200], 0xFFF0 ; TODO: may not be 0xB200 !!! |
1242 | test word [es:bx+di+0xB200], 0xFFF0 ; TODO: may not be 0xB200 !!! |
1243 | jmp @f |
1243 | jmp @f |
1244 | .even: |
1244 | .even: |
1245 | test word [es:bx+di+0xB200], 0xFFF ; TODO: may not be 0xB200 !!! |
1245 | test word [es:bx+di+0xB200], 0xFFF ; TODO: may not be 0xB200 !!! |
1246 | 1246 | ||
1247 | @@: |
1247 | @@: |
1248 | jz .skip |
1248 | jz .skip |
1249 | ; read cluster di |
1249 | ; read cluster di |
1250 | ;.read: |
1250 | ;.read: |
1251 | ;conv cluster di to abs. sector ax |
1251 | ;conv cluster di to abs. sector ax |
1252 | ; ax = (N-2) * BPB_SecPerClus + FirstDataSector |
1252 | ; ax = (N-2) * BPB_SecPerClus + FirstDataSector |
1253 | mov ax, di |
1253 | mov ax, di |
1254 | sub ax, 2 |
1254 | sub ax, 2 |
1255 | xor bx, bx |
1255 | xor bx, bx |
1256 | mov bl, byte [BPB_SecPerClus] |
1256 | mov bl, byte [BPB_SecPerClus] |
1257 | mul bx |
1257 | mul bx |
1258 | add ax, word [FirstDataSector] |
1258 | add ax, word [FirstDataSector] |
1259 | call conv_abs_to_THS |
1259 | call conv_abs_to_THS |
1260 | pop bx |
1260 | pop bx |
1261 | push bx |
1261 | push bx |
1262 | mov al, byte [BPB_SecPerClus] ; number of sectors in cluster |
1262 | mov al, byte [BPB_SecPerClus] ; number of sectors in cluster |
1263 | call boot_read_floppy |
1263 | call boot_read_floppy |
1264 | push es |
1264 | push es |
1265 | push ds |
1265 | push ds |
1266 | pop es |
1266 | pop es |
1267 | pusha |
1267 | pusha |
1268 | ; |
1268 | ; |
1269 | mov ax, word [BPB_BytsPerSec] |
1269 | mov ax, word [BPB_BytsPerSec] |
1270 | xor cx, cx |
1270 | xor cx, cx |
1271 | mov cl, byte [BPB_SecPerClus] |
1271 | mov cl, byte [BPB_SecPerClus] |
1272 | mul cx |
1272 | mul cx |
1273 | shr ax, 1 ; ax = (BPB_BytsPerSec * BPB_SecPerClus)/2 |
1273 | shr ax, 1 ; ax = (BPB_BytsPerSec * BPB_SecPerClus)/2 |
1274 | mov cx, ax ; number of words to copy (count words in cluster) |
1274 | mov cx, ax ; number of words to copy (count words in cluster) |
1275 | ; |
1275 | ; |
1276 | mov ah, 0x87 |
1276 | mov ah, 0x87 |
1277 | int 0x15 ; copy data |
1277 | int 0x15 ; copy data |
1278 | test ah, ah |
1278 | test ah, ah |
1279 | popa |
1279 | popa |
1280 | pop es |
1280 | pop es |
1281 | jnz sayerr_floppy |
1281 | jnz sayerr_floppy |
1282 | ; skip cluster di |
1282 | ; skip cluster di |
1283 | .skip: |
1283 | .skip: |
1284 | mov ax, word [BPB_BytsPerSec] |
1284 | mov ax, word [BPB_BytsPerSec] |
1285 | xor cx, cx |
1285 | xor cx, cx |
1286 | mov cl, byte [BPB_SecPerClus] |
1286 | mov cl, byte [BPB_SecPerClus] |
1287 | mul cx |
1287 | mul cx |
1288 | and eax, 0ffffh ; ax - count of bytes in cluster |
1288 | and eax, 0ffffh ; ax - count of bytes in cluster |
1289 | add dword [si+8*3+2], eax |
1289 | add dword [si+8*3+2], eax |
1290 | 1290 | ||
1291 | mov ax, word [end_of_FAT] ; max cluster number |
1291 | mov ax, word [end_of_FAT] ; max cluster number |
1292 | pusha |
1292 | pusha |
1293 | ; draw percentage |
1293 | ; draw percentage |
1294 | ; total clusters: ax |
1294 | ; total clusters: ax |
1295 | ; read clusters: di |
1295 | ; read clusters: di |
1296 | xchg ax, di |
1296 | xchg ax, di |
1297 | mov cx, 100 |
1297 | mov cx, 100 |
1298 | mul cx |
1298 | mul cx |
1299 | div di |
1299 | div di |
1300 | aam |
1300 | aam |
1301 | xchg al, ah |
1301 | xchg al, ah |
1302 | add ax, '00' |
1302 | add ax, '00' |
1303 | mov si, pros |
1303 | mov si, pros |
1304 | cmp [si], ax |
1304 | cmp [si], ax |
1305 | jz @f |
1305 | jz @f |
1306 | mov [si], ax |
1306 | mov [si], ax |
1307 | call printplain |
1307 | call printplain |
1308 | @@: |
1308 | @@: |
1309 | popa |
1309 | popa |
1310 | inc di |
1310 | inc di |
1311 | cmp di, word [end_of_FAT] ; max number of cluster |
1311 | cmp di, word [end_of_FAT] ; max number of cluster |
1312 | jnz .read_loop |
1312 | jnz .read_loop |
1313 | pop bx ; clear stack |
1313 | pop bx ; clear stack |
1314 | 1314 | ||
1315 | ok_sys_on_floppy: |
1315 | ok_sys_on_floppy: |
1316 | mov si, backspace2 |
1316 | mov si, backspace2 |
1317 | call printplain |
1317 | call printplain |
1318 | mov si, okt |
1318 | mov si, okt |
1319 | call printplain |
1319 | call printplain |
1320 | no_sys_on_floppy: |
1320 | no_sys_on_floppy: |
1321 | xor ax, ax ; reset drive |
1321 | xor ax, ax ; reset drive |
1322 | xor dx, dx |
1322 | xor dx, dx |
1323 | int 0x13 |
1323 | int 0x13 |
1324 | mov dx, 0x3f2 ; floppy motor off |
1324 | mov dx, 0x3f2 ; floppy motor off |
1325 | mov al, 0 |
1325 | mov al, 0 |
1326 | out dx, al |
1326 | out dx, al |
1327 | 1327 | ||
1328 | if defined extended_primary_loader |
1328 | if defined extended_primary_loader |
1329 | cmp [boot_dev], 1 |
1329 | cmp [boot_dev], 1 |
1330 | jne no_sys_from_primary |
1330 | jne no_sys_from_primary |
1331 | ; load kolibri.img using callback from primary loader |
1331 | ; load kolibri.img using callback from primary loader |
1332 | and word [movedesc + 24 + 2], 0 |
1332 | and word [movedesc + 24 + 2], 0 |
1333 | mov byte [movedesc + 24 + 4], 10h |
1333 | mov byte [movedesc + 24 + 4], 10h |
1334 | ; read in blocks of 64K until file is fully loaded |
1334 | ; read in blocks of 64K until file is fully loaded |
1335 | mov ax, 1 |
1335 | mov ax, 1 |
1336 | .repeat: |
1336 | .repeat: |
1337 | mov di, image_file_struct |
1337 | mov di, image_file_struct |
1338 | call [bootcallback] |
1338 | call [bootcallback] |
1339 | push cs |
1339 | push cs |
1340 | pop ds |
1340 | pop ds |
1341 | push cs |
1341 | push cs |
1342 | pop es |
1342 | pop es |
1343 | cmp bx, 1 |
1343 | cmp bx, 1 |
1344 | ja sayerr_badsect |
1344 | ja sayerr_badsect |
1345 | push bx |
1345 | push bx |
1346 | mov si, movedesc |
1346 | mov si, movedesc |
1347 | and word [si + 16 + 2], 0 |
1347 | and word [si + 16 + 2], 0 |
1348 | mov byte [si + 16 + 4], 4 |
1348 | mov byte [si + 16 + 4], 4 |
1349 | mov ah, 87h |
1349 | mov ah, 87h |
1350 | mov cx, 8000h |
1350 | mov cx, 8000h |
1351 | int 15h |
1351 | int 15h |
1352 | pop bx |
1352 | pop bx |
1353 | test ah, ah |
1353 | test ah, ah |
1354 | jnz sayerr_memmove |
1354 | jnz sayerr_memmove |
1355 | inc byte [si + 24 + 4] |
1355 | inc byte [si + 24 + 4] |
1356 | test bx, bx |
1356 | test bx, bx |
1357 | jz no_sys_from_primary |
1357 | jz no_sys_from_primary |
1358 | mov ax, 2 |
1358 | mov ax, 2 |
1359 | jmp .repeat |
1359 | jmp .repeat |
1360 | no_sys_from_primary: |
1360 | no_sys_from_primary: |
1361 | end if |
1361 | end if |
1362 | 1362 | ||
1363 | ; SET GRAPHICS |
1363 | ; SET GRAPHICS |
1364 | 1364 | ||
1365 | xor ax, ax |
1365 | xor ax, ax |
1366 | mov es, ax |
1366 | mov es, ax |
1367 | 1367 | ||
1368 | mov ax, [es:BOOT_VESA_MODE] ; vga & 320x200 |
1368 | mov ax, [es:BOOT_VESA_MODE] ; vga & 320x200 |
1369 | mov bx, ax |
1369 | mov bx, ax |
1370 | cmp ax, 0x13 |
1370 | cmp ax, 0x13 |
1371 | je setgr |
1371 | je setgr |
1372 | cmp ax, 0x12 |
1372 | cmp ax, 0x12 |
1373 | je setgr |
1373 | je setgr |
1374 | mov ax, 0x4f02 ; Vesa |
1374 | mov ax, 0x4f02 ; Vesa |
1375 | setgr: |
1375 | setgr: |
1376 | int 0x10 |
1376 | int 0x10 |
1377 | test ah, ah |
1377 | test ah, ah |
1378 | mov si, fatalsel |
1378 | mov si, fatalsel |
1379 | jnz v_mode_error |
1379 | jnz v_mode_error |
1380 | ; set mode 0x12 graphics registers: |
1380 | ; set mode 0x12 graphics registers: |
1381 | cmp bx, 0x12 |
1381 | cmp bx, 0x12 |
1382 | jne gmok2 |
1382 | jne gmok2 |
1383 | 1383 | ||
1384 | mov al, 0x05 |
1384 | mov al, 0x05 |
1385 | mov dx, 0x03ce |
1385 | mov dx, 0x03ce |
1386 | push dx |
1386 | push dx |
1387 | out dx, al ; select GDC mode register |
1387 | out dx, al ; select GDC mode register |
1388 | mov al, 0x02 |
1388 | mov al, 0x02 |
1389 | inc dx |
1389 | inc dx |
1390 | out dx, al ; set write mode 2 |
1390 | out dx, al ; set write mode 2 |
1391 | 1391 | ||
1392 | mov al, 0x02 |
1392 | mov al, 0x02 |
1393 | mov dx, 0x03c4 |
1393 | mov dx, 0x03c4 |
1394 | out dx, al ; select VGA sequencer map mask register |
1394 | out dx, al ; select VGA sequencer map mask register |
1395 | mov al, 0x0f |
1395 | mov al, 0x0f |
1396 | inc dx |
1396 | inc dx |
1397 | out dx, al ; set mask for all planes 0-3 |
1397 | out dx, al ; set mask for all planes 0-3 |
1398 | 1398 | ||
1399 | mov al, 0x08 |
1399 | mov al, 0x08 |
1400 | pop dx |
1400 | pop dx |
1401 | out dx, al ; select GDC bit mask register |
1401 | out dx, al ; select GDC bit mask register |
1402 | ; for writes to 0x03cf |
1402 | ; for writes to 0x03cf |
1403 | gmok2: |
1403 | gmok2: |
1404 | push ds |
1404 | push ds |
1405 | pop es |
1405 | pop es |