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1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
2 | ;; ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2011. 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: 3797 $ |
14 | $Revision: 3964 $ |
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 |
54 | mov ah, 0 ; If 'int 16h' is called with 'ah' equal to zero, the BIOS will not return control |
55 | int 16h ; to the caller until a key is available in the system type ahead buffer. On return, |
55 | int 16h ; to the caller until a key is available in the system type ahead buffer. On return, |
56 | cmp al, bl ; 'al' contains the ASCII code for the key read from the buffer and 'ah' contains |
56 | cmp al, bl ; 'al' contains the ASCII code for the key read from the buffer and 'ah' contains |
57 | jb getkey ; the keyboard scan code. Here we compare 'al' with the range of accepted characters. |
57 | jb getkey ; the keyboard scan code. Here we compare 'al' with the range of accepted characters. |
58 | cmp al, bh ; If the key pressed is not in the range, continue waiting for another key. |
58 | cmp al, bh ; If the key pressed is not in the range, continue waiting for another key. |
59 | ja getkey |
59 | ja getkey |
60 | push ax ; If the pressed key is in the accepted range, save it on the stack and echo to screen. |
60 | push ax ; If the pressed key is in the accepted range, save it on the stack and echo to screen. |
61 | call putchar |
61 | call putchar |
62 | pop ax |
62 | pop ax |
63 | and ax, 0Fh ; ASCII code for '0' is 48 (110000b). 0F4=1111b. (110000b AND 1111b) = 0 |
63 | and ax, 0Fh ; ASCII code for '0' is 48 (110000b). 0F4=1111b. (110000b AND 1111b) = 0 |
64 | jnz @f ; So if key '0' was entered, return 10 in 'ax' |
64 | jnz @f ; So if key '0' was entered, return 10 in 'ax' |
65 | mov al, 10 |
65 | mov al, 10 |
66 | @@: |
66 | @@: |
67 | ret |
67 | ret |
68 | 68 | ||
69 | setcursor: |
69 | setcursor: |
70 | ; in: dl=column, dh=row |
70 | ; in: dl=column, dh=row |
71 | mov ah, 2 |
71 | mov ah, 2 |
72 | mov bh, 0 |
72 | mov bh, 0 |
73 | int 10h |
73 | int 10h |
74 | ret |
74 | ret |
75 | 75 | ||
76 | macro _setcursor row,column |
76 | macro _setcursor row,column |
77 | { |
77 | { |
78 | mov dx, row*256 + column |
78 | mov dx, row*256 + column |
79 | call setcursor |
79 | call setcursor |
80 | } |
80 | } |
81 | 81 | ||
82 | boot_read_floppy: |
82 | boot_read_floppy: |
83 | push si |
83 | push si |
84 | xor si, si |
84 | xor si, si |
85 | mov ah, 2 ; read |
85 | mov ah, 2 ; read |
86 | @@: |
86 | @@: |
87 | push ax |
87 | push ax |
88 | int 0x13 |
88 | int 0x13 |
89 | pop ax |
89 | pop ax |
90 | jnc @f |
90 | jnc @f |
91 | inc si |
91 | inc si |
92 | cmp si, 10 |
92 | cmp si, 10 |
93 | jb @b |
93 | jb @b |
94 | sayerr_badsect: |
94 | sayerr_badsect: |
95 | mov si, badsect |
95 | mov si, badsect |
96 | sayerr_plain: |
96 | sayerr_plain: |
97 | call printplain |
97 | call printplain |
98 | jmp $ |
98 | jmp $ |
99 | @@: |
99 | @@: |
100 | pop si |
100 | pop si |
101 | ret |
101 | ret |
102 | 102 | ||
103 | ; convert abs. sector number (AX) to BIOS T:H:S |
103 | ; convert abs. sector number (AX) to BIOS T:H:S |
104 | ; sector number = (abs.sector%BPB_SecPerTrk)+1 |
104 | ; sector number = (abs.sector%BPB_SecPerTrk)+1 |
105 | ; pre.track number = (abs.sector/BPB_SecPerTrk) |
105 | ; pre.track number = (abs.sector/BPB_SecPerTrk) |
106 | ; head number = pre.track number%BPB_NumHeads |
106 | ; head number = pre.track number%BPB_NumHeads |
107 | ; track number = pre.track number/BPB_NumHeads |
107 | ; track number = pre.track number/BPB_NumHeads |
108 | ; Return: cl - sector number |
108 | ; Return: cl - sector number |
109 | ; ch - track number |
109 | ; ch - track number |
110 | ; dl - drive number (0 = a:) |
110 | ; dl - drive number (0 = a:) |
111 | ; dh - head number |
111 | ; dh - head number |
112 | conv_abs_to_THS: |
112 | conv_abs_to_THS: |
113 | push bx |
113 | push bx |
114 | mov bx, word [BPB_SecPerTrk] |
114 | mov bx, word [BPB_SecPerTrk] |
115 | xor dx, dx |
115 | xor dx, dx |
116 | div bx |
116 | div bx |
117 | inc dx |
117 | inc dx |
118 | mov cl, dl ; cl = sector number |
118 | mov cl, dl ; cl = sector number |
119 | mov bx, word [BPB_NumHeads] |
119 | mov bx, word [BPB_NumHeads] |
120 | xor dx, dx |
120 | xor dx, dx |
121 | div bx |
121 | div bx |
122 | ; !!!!!!! ax = track number, dx = head number |
122 | ; !!!!!!! ax = track number, dx = head number |
123 | mov ch, al ; ch=track number |
123 | mov ch, al ; ch=track number |
124 | xchg dh, dl ; dh=head number |
124 | xchg dh, dl ; dh=head number |
125 | mov dl, 0 ; dl=0 (drive 0 (a:)) |
125 | mov dl, 0 ; dl=0 (drive 0 (a:)) |
126 | pop bx |
126 | pop bx |
127 | retn |
127 | retn |
128 | ; needed variables |
128 | ; needed variables |
129 | BPB_SecPerTrk dw 0 ; sectors per track |
129 | BPB_SecPerTrk dw 0 ; sectors per track |
130 | BPB_NumHeads dw 0 ; number of heads |
130 | BPB_NumHeads dw 0 ; number of heads |
131 | BPB_FATSz16 dw 0 ; size of FAT |
131 | BPB_FATSz16 dw 0 ; size of FAT |
132 | BPB_RootEntCnt dw 0 ; count of root dir. entries |
132 | BPB_RootEntCnt dw 0 ; count of root dir. entries |
133 | BPB_BytsPerSec dw 0 ; bytes per sector |
133 | BPB_BytsPerSec dw 0 ; bytes per sector |
134 | BPB_RsvdSecCnt dw 0 ; number of reserved sectors |
134 | BPB_RsvdSecCnt dw 0 ; number of reserved sectors |
135 | BPB_TotSec16 dw 0 ; count of the sectors on the volume |
135 | BPB_TotSec16 dw 0 ; count of the sectors on the volume |
136 | BPB_SecPerClus db 0 ; number of sectors per cluster |
136 | BPB_SecPerClus db 0 ; number of sectors per cluster |
137 | BPB_NumFATs db 0 ; number of FAT tables |
137 | BPB_NumFATs db 0 ; number of FAT tables |
138 | abs_sector_adj dw 0 ; adjustment to make abs. sector number |
138 | abs_sector_adj dw 0 ; adjustment to make abs. sector number |
139 | end_of_FAT dw 0 ; end of FAT table |
139 | end_of_FAT dw 0 ; end of FAT table |
140 | FirstDataSector dw 0 ; begin of data |
140 | FirstDataSector dw 0 ; begin of data |
141 | 141 | ||
142 | ;========================================================================= |
142 | ;========================================================================= |
143 | ; |
143 | ; |
144 | ; 16 BIT CODE |
144 | ; 16 BIT CODE |
145 | ; |
145 | ; |
146 | ;========================================================================= |
146 | ;========================================================================= |
147 | 147 | ||
148 | include 'bootvesa.inc' ;Include source for boot vesa |
148 | include 'bootvesa.inc' ;Include source for boot vesa |
149 | if defined extended_primary_loader |
149 | if defined extended_primary_loader |
150 | include 'parsers.inc' |
150 | include 'parsers.inc' |
151 | end if |
151 | end if |
152 | 152 | ||
153 | start_of_code: |
153 | start_of_code: |
154 | 154 | ||
155 | if defined extended_primary_loader |
155 | if defined extended_primary_loader |
156 | ; save data from primary loader |
156 | ; save data from primary loader |
157 | mov word [cs:bootcallback], si |
157 | mov word [cs:bootcallback], si |
158 | mov word [cs:bootcallback+2], ds |
158 | mov word [cs:bootcallback+2], ds |
159 | push cs |
159 | push cs |
160 | pop ds |
160 | pop ds |
161 | mov [bootdevice], ax |
161 | mov [bootdevice], ax |
162 | mov [bootfs], bx |
162 | mov [bootfs], bx |
163 | 163 | ||
164 | ; set up stack |
164 | ; set up stack |
165 | mov ax, 3000h |
165 | mov ax, 3000h |
166 | mov ss, ax |
166 | mov ss, ax |
167 | mov sp, 0EC00h |
167 | mov sp, 0EC00h |
168 | 168 | ||
169 | ; try to load configuration file |
169 | ; try to load configuration file |
170 | mov ax, 1 |
170 | mov ax, 1 |
171 | mov di, config_file_struct |
171 | mov di, config_file_struct |
172 | call [bootcallback] |
172 | call [bootcallback] |
173 | cld |
173 | cld |
174 | push cs |
174 | push cs |
175 | pop es |
175 | pop es |
176 | ; bx=0 - ok, bx=1 - part of file loaded, assume this is ok |
176 | ; bx=0 - ok, bx=1 - part of file loaded, assume this is ok |
177 | cmp bx, 1 |
177 | cmp bx, 1 |
178 | ja .config_bad |
178 | ja .config_bad |
179 | ; configuration file was loaded, parse |
179 | ; configuration file was loaded, parse |
180 | ; if length is too big, use first 0FFFFh bytes |
180 | ; if length is too big, use first 0FFFFh bytes |
181 | test dx, dx |
181 | test dx, dx |
182 | jz @f |
182 | jz @f |
183 | mov ax, 0FFFFh |
183 | mov ax, 0FFFFh |
184 | @@: |
184 | @@: |
185 | ; ds:si will be pointer to current data, dx = limit |
185 | ; ds:si will be pointer to current data, dx = limit |
186 | xchg ax, dx |
186 | xchg ax, dx |
187 | push 4000h |
187 | push 4000h |
188 | pop ds |
188 | pop ds |
189 | xor si, si |
189 | xor si, si |
190 | .parse_loop: |
190 | .parse_loop: |
191 | ; skip spaces |
191 | ; skip spaces |
192 | cmp si, dx |
192 | cmp si, dx |
193 | jae .parse_done |
193 | jae .parse_done |
194 | lodsb |
194 | lodsb |
195 | cmp al, ' ' |
195 | cmp al, ' ' |
196 | jbe .parse_loop |
196 | jbe .parse_loop |
197 | dec si |
197 | dec si |
198 | ; loop over all possible configuration values |
198 | ; loop over all possible configuration values |
199 | mov bx, config_file_variables |
199 | mov bx, config_file_variables |
200 | .find_variant: |
200 | .find_variant: |
201 | ; get length |
201 | ; get length |
202 | mov cx, [es:bx] |
202 | mov cx, [es:bx] |
203 | ; zero length = end of list |
203 | ; zero length = end of list |
204 | jecxz .find_newline |
204 | jecxz .find_newline |
205 | ; skip over length |
205 | ; skip over length |
206 | inc bx |
206 | inc bx |
207 | inc bx |
207 | inc bx |
208 | mov di, bx |
208 | mov di, bx |
209 | ; skip over string |
209 | ; skip over string |
210 | add bx, cx |
210 | add bx, cx |
211 | ; test whether we have at least cx symbols left |
211 | ; test whether we have at least cx symbols left |
212 | mov ax, cx |
212 | mov ax, cx |
213 | add ax, si |
213 | add ax, si |
214 | jc .next_variant1 |
214 | jc .next_variant1 |
215 | cmp ax, dx |
215 | cmp ax, dx |
216 | jae .next_variant1 |
216 | jae .next_variant1 |
217 | ; save current position |
217 | ; save current position |
218 | push si |
218 | push si |
219 | ; compare strings |
219 | ; compare strings |
220 | repz cmpsb |
220 | repz cmpsb |
221 | jnz .next_variant2 |
221 | jnz .next_variant2 |
222 | ; strings are equal; look for "=" with possible spaces before and after |
222 | ; strings are equal; look for "=" with possible spaces before and after |
223 | @@: |
223 | @@: |
224 | cmp si, dx |
224 | cmp si, dx |
225 | jae .next_variant2 |
225 | jae .next_variant2 |
226 | lodsb |
226 | lodsb |
227 | cmp al, ' ' |
227 | cmp al, ' ' |
228 | jbe @b |
228 | jbe @b |
229 | cmp al, '=' |
229 | cmp al, '=' |
230 | jnz .next_variant2 |
230 | jnz .next_variant2 |
231 | ; ok, we found the true variant |
231 | ; ok, we found the true variant |
232 | ; ignore saved position on the stack |
232 | ; ignore saved position on the stack |
233 | pop ax |
233 | pop ax |
234 | ; call the parser |
234 | ; call the parser |
235 | call word [es:bx] |
235 | call word [es:bx] |
236 | ; line parsed, find next |
236 | ; line parsed, find next |
237 | .find_newline: |
237 | .find_newline: |
238 | cmp si, dx |
238 | cmp si, dx |
239 | jae .parse_done |
239 | jae .parse_done |
240 | lodsb |
240 | lodsb |
241 | cmp al, 13 |
241 | cmp al, 13 |
242 | jz .parse_loop |
242 | jz .parse_loop |
243 | cmp al, 10 |
243 | cmp al, 10 |
244 | jz .parse_loop |
244 | jz .parse_loop |
245 | jmp .find_newline |
245 | jmp .find_newline |
246 | .next_variant2: |
246 | .next_variant2: |
247 | ; continue to the next variant, restoring current position |
247 | ; continue to the next variant, restoring current position |
248 | pop si |
248 | pop si |
249 | .next_variant1: |
249 | .next_variant1: |
250 | ; continue to the next variant |
250 | ; continue to the next variant |
251 | ; skip over the parser |
251 | ; skip over the parser |
252 | inc bx |
252 | inc bx |
253 | inc bx |
253 | inc bx |
254 | jmp .find_variant |
254 | jmp .find_variant |
255 | .parse_done: |
255 | .parse_done: |
256 | .config_bad: |
256 | .config_bad: |
257 | 257 | ||
258 | ; set up segment registers |
258 | ; set up segment registers |
259 | push cs |
259 | push cs |
260 | pop ds |
260 | pop ds |
261 | else |
261 | else |
262 | cld |
262 | cld |
263 | ; \begin{diamond}[02.12.2005] |
263 | ; \begin{diamond}[02.12.2005] |
264 | ; if bootloader sets ax = 'KL', then ds:si points to loader block |
264 | ; if bootloader sets ax = 'KL', then ds:si points to loader block |
265 | cmp ax, 'KL' |
265 | cmp ax, 'KL' |
266 | jnz @f |
266 | jnz @f |
267 | mov word [cs:cfgmanager.loader_block], si |
267 | mov word [cs:cfgmanager.loader_block], si |
268 | mov word [cs:cfgmanager.loader_block+2], ds |
268 | mov word [cs:cfgmanager.loader_block+2], ds |
269 | @@: |
269 | @@: |
270 | ; \end{diamond}[02.12.2005] |
270 | ; \end{diamond}[02.12.2005] |
271 | 271 | ||
272 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source hard disk |
272 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source hard disk |
273 | ; (see comment to bx_from_load) |
273 | ; (see comment to bx_from_load) |
274 | cmp cx, 'HA' |
274 | cmp cx, 'HA' |
275 | jnz no_hd_load |
275 | jnz no_hd_load |
276 | cmp dx, 'RD' |
276 | cmp dx, 'RD' |
277 | jnz no_hd_load |
277 | jnz no_hd_load |
278 | mov word [cs:bx_from_load], bx ; {SPraid}[13.03.2007] |
278 | mov word [cs:bx_from_load], bx ; {SPraid}[13.03.2007] |
279 | no_hd_load: |
279 | no_hd_load: |
280 | 280 | ||
281 | ; set up stack |
281 | ; set up stack |
282 | mov ax, 3000h |
282 | mov ax, 3000h |
283 | mov ss, ax |
283 | mov ss, ax |
284 | mov sp, 0EC00h |
284 | mov sp, 0EC00h |
285 | ; set up segment registers |
285 | ; set up segment registers |
286 | push cs |
286 | push cs |
287 | pop ds |
287 | pop ds |
288 | push cs |
288 | push cs |
289 | pop es |
289 | pop es |
290 | end if |
290 | end if |
291 | 291 | ||
292 | ; set videomode |
292 | ; set videomode |
293 | mov ax, 3 |
293 | mov ax, 3 |
294 | int 0x10 |
294 | int 0x10 |
295 | 295 | ||
296 | if lang eq ru |
296 | if lang eq ru |
297 | ; Load & set russian VGA font (RU.INC) |
297 | ; Load & set russian VGA font (RU.INC) |
298 | mov bp, RU_FNT1 ; RU_FNT1 - First part |
298 | mov bp, RU_FNT1 ; RU_FNT1 - First part |
299 | mov bx, 1000h ; 768 bytes |
299 | mov bx, 1000h ; 768 bytes |
300 | mov cx, 30h ; 48 symbols |
300 | mov cx, 30h ; 48 symbols |
301 | mov dx, 80h ; 128 - position of first symbol |
301 | mov dx, 80h ; 128 - position of first symbol |
302 | mov ax, 1100h |
302 | mov ax, 1100h |
303 | int 10h |
303 | int 10h |
304 | 304 | ||
305 | mov bp, RU_FNT2 ; RU_FNT2 -Second part |
305 | mov bp, RU_FNT2 ; RU_FNT2 -Second part |
306 | mov bx, 1000h ; 512 bytes |
306 | mov bx, 1000h ; 512 bytes |
307 | mov cx, 20h ; 32 symbols |
307 | mov cx, 20h ; 32 symbols |
308 | mov dx, 0E0h ; 224 - position of first symbol |
308 | mov dx, 0E0h ; 224 - position of first symbol |
309 | mov ax, 1100h |
309 | mov ax, 1100h |
310 | int 10h |
310 | int 10h |
311 | ; End set VGA russian font |
311 | ; End set VGA russian font |
312 | else if lang eq et |
312 | else if lang eq et |
313 | mov bp, ET_FNT ; ET_FNT1 |
313 | mov bp, ET_FNT ; ET_FNT1 |
314 | mov bx, 1000h ; |
314 | mov bx, 1000h ; |
315 | mov cx, 255 ; 256 symbols |
315 | mov cx, 255 ; 256 symbols |
316 | xor dx, dx ; 0 - position of first symbol |
316 | xor dx, dx ; 0 - position of first symbol |
317 | mov ax, 1100h |
317 | mov ax, 1100h |
318 | int 10h |
318 | int 10h |
319 | end if |
319 | end if |
320 | 320 | ||
321 | ; draw frames |
321 | ; draw frames |
322 | push 0xb800 |
322 | push 0xb800 |
323 | pop es |
323 | pop es |
324 | xor di, di |
324 | xor di, di |
325 | mov ah, 1*16+15 |
325 | mov ah, 1*16+15 |
326 | 326 | ||
327 | ; draw top |
327 | ; draw top |
328 | mov si, d80x25_top |
328 | mov si, d80x25_top |
329 | mov cx, d80x25_top_num * 80 |
329 | mov cx, d80x25_top_num * 80 |
330 | @@: |
330 | @@: |
331 | lodsb |
331 | lodsb |
332 | stosw |
332 | stosw |
333 | loop @b |
333 | loop @b |
334 | ; draw spaces |
334 | ; draw spaces |
335 | mov si, space_msg |
335 | mov si, space_msg |
336 | mov dx, 25 - d80x25_top_num - d80x25_bottom_num |
336 | mov dx, 25 - d80x25_top_num - d80x25_bottom_num |
337 | dfl1: |
337 | dfl1: |
338 | push si |
338 | push si |
339 | mov cx, 80 |
339 | mov cx, 80 |
340 | @@: |
340 | @@: |
341 | lodsb |
341 | lodsb |
342 | stosw |
342 | stosw |
343 | loop @b |
343 | loop @b |
344 | pop si |
344 | pop si |
345 | dec dx |
345 | dec dx |
346 | jnz dfl1 |
346 | jnz dfl1 |
347 | ; draw bottom |
347 | ; draw bottom |
348 | mov si, d80x25_bottom |
348 | mov si, d80x25_bottom |
349 | mov cx, d80x25_bottom_num * 80 |
349 | mov cx, d80x25_bottom_num * 80 |
350 | @@: |
350 | @@: |
351 | lodsb |
351 | lodsb |
352 | stosw |
352 | stosw |
353 | loop @b |
353 | loop @b |
354 | 354 | ||
355 | mov byte [space_msg+80], 0 ; now space_msg is null terminated |
355 | mov byte [space_msg+80], 0 ; now space_msg is null terminated |
356 | 356 | ||
357 | _setcursor d80x25_top_num,0 |
357 | _setcursor d80x25_top_num,0 |
358 | 358 | ||
359 | 359 | ||
360 | ; TEST FOR 386+ |
360 | ; TEST FOR 386+ |
361 | 361 | ||
362 | mov bx, 0x4000 |
362 | mov bx, 0x4000 |
363 | pushf |
363 | pushf |
364 | pop ax |
364 | pop ax |
365 | mov dx, ax |
365 | mov dx, ax |
366 | xor ax, bx |
366 | xor ax, bx |
367 | push ax |
367 | push ax |
368 | popf |
368 | popf |
369 | pushf |
369 | pushf |
370 | pop ax |
370 | pop ax |
371 | and ax, bx |
371 | and ax, bx |
372 | and dx, bx |
372 | and dx, bx |
373 | cmp ax, dx |
373 | cmp ax, dx |
374 | jnz cpugood |
374 | jnz cpugood |
375 | mov si, not386 |
375 | mov si, not386 |
376 | sayerr: |
376 | sayerr: |
377 | call print |
377 | call print |
378 | jmp $ |
378 | jmp $ |
379 | cpugood: |
379 | cpugood: |
380 | 380 | ||
381 | push 0 |
381 | push 0 |
382 | popf |
382 | popf |
383 | sti |
383 | sti |
384 | 384 | ||
385 | ; set up esp |
385 | ; set up esp |
386 | movzx esp, sp |
386 | movzx esp, sp |
387 | 387 | ||
388 | push 0 |
388 | push 0 |
389 | pop es |
389 | pop es |
390 | xor ax, ax |
390 | xor ax, ax |
391 | and word [es:BOOT_IDE_BASE_ADDR], ax ;0 |
391 | and word [es:BOOT_IDE_BASE_ADDR], ax ;0 |
392 | and word [es:BOOT_IDE_BAR0_16], ax ;0 |
392 | and word [es:BOOT_IDE_BAR0_16], ax ;0 |
393 | and word [es:BOOT_IDE_BAR1_16], ax ;0 |
393 | and word [es:BOOT_IDE_BAR1_16], ax ;0 |
394 | and word [es:BOOT_IDE_BAR2_16], ax ;0 |
394 | and word [es:BOOT_IDE_BAR2_16], ax ;0 |
395 | and word [es:BOOT_IDE_BAR3_16], ax ;0 |
395 | and word [es:BOOT_IDE_BAR3_16], ax ;0 |
396 | ; \begin{Mario79} |
396 | ; \begin{Mario79} |
397 | ; find HDD IDE DMA PCI device |
397 | ; find HDD IDE DMA PCI device |
398 | ; check for PCI BIOS |
398 | ; check for PCI BIOS |
399 | mov ax, 0xB101 |
399 | mov ax, 0xB101 |
400 | int 0x1A |
400 | int 0x1A |
401 | jc .nopci |
401 | jc .nopci |
402 | cmp edx, 'PCI ' |
402 | cmp edx, 'PCI ' |
403 | jnz .nopci |
403 | jnz .nopci |
404 | ; find PCI class code |
404 | ; find PCI class code |
405 | ; class 1 = mass storage |
405 | ; class 1 = mass storage |
406 | ; subclass 1 = IDE controller |
406 | ; subclass 1 = IDE controller |
407 | ; a) class 1, subclass 1, programming interface 0x80 |
407 | ; a) class 1, subclass 1, programming interface 0x80 |
408 | ; This is a Parallel IDE Controller which uses IRQs 14 and 15. |
408 | ; This is a Parallel IDE Controller which uses IRQs 14 and 15. |
409 | mov ax, 0xB103 |
409 | mov ax, 0xB103 |
410 | mov ecx, 1*10000h + 1*100h + 0x80 |
410 | mov ecx, 1*10000h + 1*100h + 0x80 |
411 | mov [es:BOOT_IDE_PI_16], cx |
411 | mov [es:BOOT_IDE_PI_16], cx |
412 | xor si, si ; device index = 0 |
412 | xor si, si ; device index = 0 |
413 | int 0x1A |
413 | int 0x1A |
414 | jnc .found_1 ; Parallel IDE Controller |
414 | jnc .found_1 ; Parallel IDE Controller |
415 | ; b) class 1, subclass 1, programming interface 0x8f |
415 | ; b) class 1, subclass 1, programming interface 0x8f |
416 | mov ax, 0xB103 |
416 | mov ax, 0xB103 |
417 | mov ecx, 1*10000h + 1*100h + 0x8f |
417 | mov ecx, 1*10000h + 1*100h + 0x8f |
418 | mov [es:BOOT_IDE_PI_16], cx |
418 | mov [es:BOOT_IDE_PI_16], cx |
419 | xor si, si ; device index = 0 |
419 | xor si, si ; device index = 0 |
420 | int 0x1A |
420 | int 0x1A |
421 | jnc .found |
421 | jnc .found |
422 | ; c) class 1, subclass 1, programming interface 0x85 |
422 | ; c) class 1, subclass 1, programming interface 0x85 |
423 | mov ax, 0xB103 |
423 | mov ax, 0xB103 |
424 | mov ecx, 1*10000h + 1*100h + 0x85 |
424 | mov ecx, 1*10000h + 1*100h + 0x85 |
425 | mov [es:BOOT_IDE_PI_16], cx |
425 | mov [es:BOOT_IDE_PI_16], cx |
426 | xor si, si ; device index = 0 |
426 | xor si, si ; device index = 0 |
427 | int 0x1A |
427 | int 0x1A |
428 | jnc .found |
428 | jnc .found |
429 | ; d) class 1, subclass 1, programming interface 0x8A |
429 | ; d) class 1, subclass 1, programming interface 0x8A |
430 | ; This is a Parallel IDE Controller which uses IRQs 14 and 15. |
430 | ; This is a Parallel IDE Controller which uses IRQs 14 and 15. |
431 | mov ax, 0xB103 |
431 | mov ax, 0xB103 |
432 | mov ecx, 1*10000h + 1*100h + 0x8A |
432 | mov ecx, 1*10000h + 1*100h + 0x8A |
433 | mov [es:BOOT_IDE_PI_16], cx |
433 | mov [es:BOOT_IDE_PI_16], cx |
434 | xor si, si ; device index = 0 |
434 | xor si, si ; device index = 0 |
435 | int 0x1A |
435 | int 0x1A |
436 | jnc .found_1 ; Parallel IDE Controller |
436 | jnc .found ; Parallel IDE Controller |
437 | ; Controller not found! |
437 | ; Controller not found! |
438 | xor ax, ax |
438 | xor ax, ax |
439 | mov [es:BOOT_IDE_PI_16], ax |
439 | mov [es:BOOT_IDE_PI_16], ax |
440 | jmp .nopci |
440 | jmp .nopci |
441 | ;-------------------------------------- |
441 | ;-------------------------------------- |
442 | .found_1: |
442 | .found_1: |
443 | ; get memory base BAR4 |
443 | ; get memory base BAR4 |
444 | mov ax, 0xB10A |
444 | mov ax, 0xB10A |
445 | mov di, 0x20 ; memory base is config register at 0x20 |
445 | mov di, 0x20 ; memory base is config register at 0x20 |
446 | push cx |
446 | push cx |
447 | int 0x1A |
447 | int 0x1A |
448 | jc .no_BAR4 ;.nopci |
448 | jc .no_BAR4 ;.nopci |
449 | and cx, 0xFFFC ; clear address decode type |
449 | and cx, 0xFFFC ; clear address decode type |
450 | mov [es:BOOT_IDE_BASE_ADDR], cx |
450 | mov [es:BOOT_IDE_BASE_ADDR], cx |
451 | .no_BAR4: |
451 | .no_BAR4: |
452 | pop cx |
452 | pop cx |
453 | ;-------------------------------------- |
453 | ;-------------------------------------- |
454 | .found: |
454 | .found: |
455 | ; get Interrupt Line |
455 | ; get Interrupt Line |
456 | mov ax, 0xB10A |
456 | mov ax, 0xB10A |
457 | mov di, 0x3c ; memory base is config register at 0x3c |
457 | mov di, 0x3c ; memory base is config register at 0x3c |
458 | push cx |
458 | push cx |
459 | int 0x1A |
459 | int 0x1A |
460 | jc .no_Interrupt ;.nopci |
460 | jc .no_Interrupt ;.nopci |
461 | 461 | ||
462 | mov [es:BOOT_IDE_INTERR_16], cx |
462 | mov [es:BOOT_IDE_INTERR_16], cx |
463 | .no_Interrupt: |
463 | .no_Interrupt: |
464 | pop cx |
464 | pop cx |
465 | ;-------------------------------------- |
465 | ;-------------------------------------- |
466 | ; get memory base BAR0 |
466 | ; get memory base BAR0 |
467 | mov ax, 0xB10A |
467 | mov ax, 0xB10A |
468 | mov di, 0x10 ; memory base is config register at 0x10 |
468 | mov di, 0x10 ; memory base is config register at 0x10 |
469 | push cx |
469 | push cx |
470 | int 0x1A |
470 | int 0x1A |
471 | jc .no_BAR0 ;.nopci |
471 | jc .no_BAR0 ;.nopci |
472 | 472 | ||
473 | mov [es:BOOT_IDE_BAR0_16], cx |
473 | mov [es:BOOT_IDE_BAR0_16], cx |
474 | .no_BAR0: |
474 | .no_BAR0: |
475 | pop cx |
475 | pop cx |
476 | ;-------------------------------------- |
476 | ;-------------------------------------- |
477 | ; get memory base BAR1 |
477 | ; get memory base BAR1 |
478 | mov ax, 0xB10A |
478 | mov ax, 0xB10A |
479 | mov di, 0x14 ; memory base is config register at 0x14 |
479 | mov di, 0x14 ; memory base is config register at 0x14 |
480 | push cx |
480 | push cx |
481 | int 0x1A |
481 | int 0x1A |
482 | jc .no_BAR1 ;.nopci |
482 | jc .no_BAR1 ;.nopci |
483 | 483 | ||
484 | mov [es:BOOT_IDE_BAR1_16], cx |
484 | mov [es:BOOT_IDE_BAR1_16], cx |
485 | .no_BAR1: |
485 | .no_BAR1: |
486 | pop cx |
486 | pop cx |
487 | ;-------------------------------------- |
487 | ;-------------------------------------- |
488 | ; get memory base BAR2 |
488 | ; get memory base BAR2 |
489 | mov ax, 0xB10A |
489 | mov ax, 0xB10A |
490 | mov di, 0x18 ; memory base is config register at 0x18 |
490 | mov di, 0x18 ; memory base is config register at 0x18 |
491 | push cx |
491 | push cx |
492 | int 0x1A |
492 | int 0x1A |
493 | jc .no_BAR2 ;.nopci |
493 | jc .no_BAR2 ;.nopci |
494 | 494 | ||
495 | mov [es:BOOT_IDE_BAR2_16], cx |
495 | mov [es:BOOT_IDE_BAR2_16], cx |
496 | .no_BAR2: |
496 | .no_BAR2: |
497 | pop cx |
497 | pop cx |
498 | ;-------------------------------------- |
498 | ;-------------------------------------- |
499 | ; get memory base BAR3 |
499 | ; get memory base BAR3 |
500 | mov ax, 0xB10A |
500 | mov ax, 0xB10A |
501 | mov di, 0x1C ; memory base is config register at 0x1c |
501 | mov di, 0x1C ; memory base is config register at 0x1c |
502 | push cx |
502 | push cx |
503 | int 0x1A |
503 | int 0x1A |
504 | jc .no_BAR3 ;.nopci |
504 | jc .no_BAR3 ;.nopci |
505 | 505 | ||
506 | mov [es:BOOT_IDE_BAR3_16], cx |
506 | mov [es:BOOT_IDE_BAR3_16], cx |
507 | .no_BAR3: |
507 | .no_BAR3: |
508 | pop cx |
508 | pop cx |
509 | ;-------------------------------------- |
509 | ;-------------------------------------- |
510 | .nopci: |
510 | .nopci: |
511 | ; \end{Mario79} |
511 | ; \end{Mario79} |
512 | 512 | ||
513 | mov al, 0xf6 ; Сброс клавиатуры, разрешить сканирование |
513 | mov al, 0xf6 ; Сброс клавиатуры, разрешить сканирование |
514 | out 0x60, al |
514 | out 0x60, al |
515 | xor cx, cx |
515 | xor cx, cx |
516 | wait_loop: ; variant 2 |
516 | wait_loop: ; variant 2 |
517 | ; reading state of port of 8042 controller |
517 | ; reading state of port of 8042 controller |
518 | in al, 64h |
518 | in al, 64h |
519 | and al, 00000010b ; ready flag |
519 | and al, 00000010b ; ready flag |
520 | ; wait until 8042 controller is ready |
520 | ; wait until 8042 controller is ready |
521 | loopnz wait_loop |
521 | loopnz wait_loop |
522 | 522 | ||
523 | ;;;/diamond today 5.02.2008 |
523 | ;;;/diamond today 5.02.2008 |
524 | ; set keyboard typematic rate & delay |
524 | ; set keyboard typematic rate & delay |
525 | mov al, 0xf3 |
525 | mov al, 0xf3 |
526 | out 0x60, al |
526 | out 0x60, al |
527 | xor cx, cx |
527 | xor cx, cx |
528 | @@: |
528 | @@: |
529 | in al, 64h |
529 | in al, 64h |
530 | test al, 2 |
530 | test al, 2 |
531 | loopnz @b |
531 | loopnz @b |
532 | mov al, 0 |
532 | mov al, 0 |
533 | out 0x60, al |
533 | out 0x60, al |
534 | xor cx, cx |
534 | xor cx, cx |
535 | @@: |
535 | @@: |
536 | in al, 64h |
536 | in al, 64h |
537 | test al, 2 |
537 | test al, 2 |
538 | loopnz @b |
538 | loopnz @b |
539 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
539 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
540 | ; --------------- APM --------------------- |
540 | ; --------------- APM --------------------- |
541 | and word [es:BOOT_APM_VERSION], 0 ; ver = 0.0 (APM not found) |
541 | and word [es:BOOT_APM_VERSION], 0 ; ver = 0.0 (APM not found) |
542 | mov ax, 0x5300 |
542 | mov ax, 0x5300 |
543 | xor bx, bx |
543 | xor bx, bx |
544 | int 0x15 |
544 | int 0x15 |
545 | jc apm_end ; APM not found |
545 | jc apm_end ; APM not found |
546 | test cx, 2 |
546 | test cx, 2 |
547 | jz apm_end ; APM 32-bit protected-mode interface not supported |
547 | jz apm_end ; APM 32-bit protected-mode interface not supported |
548 | mov [es:BOOT_APM_VERSION], ax ; Save APM Version |
548 | mov [es:BOOT_APM_VERSION], ax ; Save APM Version |
549 | mov [es:BOOT_APM_FLAGS], cx ; Save APM flags |
549 | mov [es:BOOT_APM_FLAGS], cx ; Save APM flags |
550 | 550 | ||
551 | ; Write APM ver ---- |
551 | ; Write APM ver ---- |
552 | and ax, 0xf0f |
552 | and ax, 0xf0f |
553 | add ax, '00' |
553 | add ax, '00' |
554 | mov si, msg_apm |
554 | mov si, msg_apm |
555 | mov [si + 5], ah |
555 | mov [si + 5], ah |
556 | mov [si + 7], al |
556 | mov [si + 7], al |
557 | _setcursor 0, 3 |
557 | _setcursor 0, 3 |
558 | call printplain |
558 | call printplain |
559 | ; ------------------ |
559 | ; ------------------ |
560 | 560 | ||
561 | mov ax, 0x5304 ; Disconnect interface |
561 | mov ax, 0x5304 ; Disconnect interface |
562 | xor bx, bx |
562 | xor bx, bx |
563 | int 0x15 |
563 | int 0x15 |
564 | mov ax, 0x5303 ; Connect 32 bit mode interface |
564 | mov ax, 0x5303 ; Connect 32 bit mode interface |
565 | xor bx, bx |
565 | xor bx, bx |
566 | int 0x15 |
566 | int 0x15 |
567 | 567 | ||
568 | mov [es:BOOT_APM_ENTRY], ebx |
568 | mov [es:BOOT_APM_ENTRY], ebx |
569 | mov [es:BOOT_APM_CODE_32], ax |
569 | mov [es:BOOT_APM_CODE_32], ax |
570 | mov [es:BOOT_APM_CODE_16], cx |
570 | mov [es:BOOT_APM_CODE_16], cx |
571 | mov [es:BOOT_APM_DATA_16], dx |
571 | mov [es:BOOT_APM_DATA_16], dx |
572 | 572 | ||
573 | apm_end: |
573 | apm_end: |
574 | _setcursor d80x25_top_num, 0 |
574 | _setcursor d80x25_top_num, 0 |
575 | 575 | ||
576 | if ~ defined extended_primary_loader |
576 | if ~ defined extended_primary_loader |
577 | ;CHECK current of code |
577 | ;CHECK current of code |
578 | cmp [cfgmanager.loader_block], -1 |
578 | cmp [cfgmanager.loader_block], -1 |
579 | jz noloaderblock |
579 | jz noloaderblock |
580 | les bx, [cfgmanager.loader_block] |
580 | les bx, [cfgmanager.loader_block] |
581 | cmp byte [es:bx], 1 |
581 | cmp byte [es:bx], 1 |
582 | mov si, loader_block_error |
582 | mov si, loader_block_error |
583 | jnz sayerr |
583 | jnz sayerr |
584 | push 0 |
584 | push 0 |
585 | pop es |
585 | pop es |
586 | end if |
586 | end if |
587 | 587 | ||
588 | noloaderblock: |
588 | noloaderblock: |
589 | ; DISPLAY VESA INFORMATION |
589 | ; DISPLAY VESA INFORMATION |
590 | call print_vesa_info |
590 | call print_vesa_info |
591 | call calc_vmodes_table |
591 | call calc_vmodes_table |
592 | call check_first_parm ;check and enable cursor_pos |
592 | call check_first_parm ;check and enable cursor_pos |
593 | 593 | ||
594 | ; \begin{diamond}[30.11.2005] |
594 | ; \begin{diamond}[30.11.2005] |
595 | cfgmanager: |
595 | cfgmanager: |
596 | ; settings: |
596 | ; settings: |
597 | ; a) preboot_graph = graphical mode |
597 | ; a) preboot_graph = graphical mode |
598 | ; preboot_gprobe = probe this mode? |
598 | ; preboot_gprobe = probe this mode? |
599 | ; b) preboot_biosdisk = use BIOS disks through V86 emulation? // (earlier was: preboot_dma = use DMA access?) |
599 | ; b) preboot_biosdisk = use BIOS disks through V86 emulation? // (earlier was: preboot_dma = use DMA access?) |
600 | ; c) preboot_debug = duplicates kernel debug output to the screen // (earlier was: preboot_vrrm = use VRR?) |
600 | ; c) preboot_debug = duplicates kernel debug output to the screen // (earlier was: preboot_vrrm = use VRR?) |
601 | ; // VRR is an obsolete functionality, used only with CRT monitors: increase display frequency by reducing screen resolution |
601 | ; // VRR is an obsolete functionality, used only with CRT monitors: increase display frequency by reducing screen resolution |
602 | ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
602 | ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
603 | ; e) preboot_device = from where to boot? |
603 | ; e) preboot_device = from where to boot? |
604 | 604 | ||
605 | ; determine default settings |
605 | ; determine default settings |
606 | if ~ defined extended_primary_loader |
606 | if ~ defined extended_primary_loader |
607 | mov [.bSettingsChanged], 0 |
607 | mov [.bSettingsChanged], 0 |
608 | end if |
608 | end if |
609 | 609 | ||
610 | ;.preboot_gr_end: |
610 | ;.preboot_gr_end: |
611 | mov di, preboot_device |
611 | mov di, preboot_device |
612 | ; if image in memory is present and [preboot_device] is uninitialized, |
612 | ; if image in memory is present and [preboot_device] is uninitialized, |
613 | ; set it to use this preloaded image |
613 | ; set it to use this preloaded image |
614 | cmp byte [di], 0 |
614 | cmp byte [di], 0 |
615 | jnz .preboot_device_inited |
615 | jnz .preboot_device_inited |
616 | if defined extended_primary_loader |
616 | if defined extended_primary_loader |
617 | inc byte [di] |
617 | inc byte [di] |
618 | cmp byte [bootdevice], 'f' ; floppy? |
618 | cmp byte [bootdevice], 'f' ; floppy? |
619 | jz .preboot_device_inited |
619 | jz .preboot_device_inited |
620 | inc byte [di] |
620 | inc byte [di] |
621 | else |
621 | else |
622 | cmp [.loader_block], -1 |
622 | cmp [.loader_block], -1 |
623 | jz @f |
623 | jz @f |
624 | les bx, [.loader_block] |
624 | les bx, [.loader_block] |
625 | test byte [es:bx+1], 1 |
625 | test byte [es:bx+1], 1 |
626 | jz @f |
626 | jz @f |
627 | mov byte [di], 3 |
627 | mov byte [di], 3 |
628 | jmp .preboot_device_inited |
628 | jmp .preboot_device_inited |
629 | @@: |
629 | @@: |
630 | ; otherwise, set [preboot_device] to 1 (default value - boot from floppy) |
630 | ; otherwise, set [preboot_device] to 1 (default value - boot from floppy) |
631 | mov byte [di], 1 |
631 | mov byte [di], 1 |
632 | end if |
632 | end if |
633 | .preboot_device_inited: |
633 | .preboot_device_inited: |
634 | ; following 4 lines set variables to 1 if its current value is 0 |
634 | ; following 4 lines set variables to 1 if its current value is 0 |
635 | cmp byte [di+preboot_dma-preboot_device], 1 |
635 | cmp byte [di+preboot_dma-preboot_device], 1 |
636 | adc byte [di+preboot_dma-preboot_device], 0 |
636 | adc byte [di+preboot_dma-preboot_device], 0 |
637 | cmp byte [di+preboot_launcher-preboot_device], 1 ; Start LAUNCHER by default |
637 | cmp byte [di+preboot_launcher-preboot_device], 1 ; Start LAUNCHER by default |
638 | adc byte [di+preboot_launcher-preboot_device], 0 |
638 | adc byte [di+preboot_launcher-preboot_device], 0 |
639 | ; cmp byte [di+preboot_biosdisk-preboot_device], 1 |
639 | ; cmp byte [di+preboot_biosdisk-preboot_device], 1 |
640 | ; adc byte [di+preboot_biosdisk-preboot_device], 0 |
640 | ; adc byte [di+preboot_biosdisk-preboot_device], 0 |
641 | ;; default value for VRR is OFF |
641 | ;; default value for VRR is OFF |
642 | ; cmp byte [di+preboot_vrrm-preboot_device], 0 |
642 | ; cmp byte [di+preboot_vrrm-preboot_device], 0 |
643 | ; jnz @f |
643 | ; jnz @f |
644 | ; mov byte [di+preboot_vrrm-preboot_device], 2 |
644 | ; mov byte [di+preboot_vrrm-preboot_device], 2 |
645 | ;@@: |
645 | ;@@: |
646 | ; notify user |
646 | ; notify user |
647 | _setcursor 5,2 |
647 | _setcursor 5,2 |
648 | 648 | ||
649 | mov si, linef |
649 | mov si, linef |
650 | call printplain |
650 | call printplain |
651 | mov si, start_msg |
651 | mov si, start_msg |
652 | call print |
652 | call print |
653 | mov si, time_msg |
653 | mov si, time_msg |
654 | call print |
654 | call print |
655 | ; get start time |
655 | ; get start time |
656 | call .gettime |
656 | call .gettime |
657 | mov [.starttime], eax |
657 | mov [.starttime], eax |
658 | mov word [.timer], .newtimer |
658 | mov word [.timer], .newtimer |
659 | mov word [.timer+2], cs |
659 | mov word [.timer+2], cs |
660 | .printcfg: |
660 | .printcfg: |
661 | 661 | ||
662 | _setcursor 9,0 |
662 | _setcursor 9,0 |
663 | mov si, current_cfg_msg |
663 | mov si, current_cfg_msg |
664 | call print |
664 | call print |
665 | mov si, curvideo_msg |
665 | mov si, curvideo_msg |
666 | call print |
666 | call print |
667 | 667 | ||
668 | call draw_current_vmode |
668 | call draw_current_vmode |
669 | 669 | ||
670 | mov si, usebd_msg |
670 | mov si, usebd_msg |
671 | cmp [preboot_biosdisk], 1 |
671 | cmp [preboot_biosdisk], 1 |
672 | call .say_on_off |
672 | call .say_on_off |
673 | ; mov si, vrrm_msg |
673 | ; mov si, vrrm_msg |
674 | ; cmp [preboot_vrrm], 1 |
674 | ; cmp [preboot_vrrm], 1 |
675 | ; call .say_on_off |
675 | ; call .say_on_off |
676 | mov si, debug_mode_msg |
676 | mov si, debug_mode_msg |
677 | cmp [preboot_debug], 1 |
677 | cmp [preboot_debug], 1 |
678 | call .say_on_off |
678 | call .say_on_off |
679 | mov si, launcher_msg |
679 | mov si, launcher_msg |
680 | cmp [preboot_launcher], 1 |
680 | cmp [preboot_launcher], 1 |
681 | call .say_on_off |
681 | call .say_on_off |
682 | mov si, preboot_device_msg |
682 | mov si, preboot_device_msg |
683 | call print |
683 | call print |
684 | mov al, [preboot_device] |
684 | mov al, [preboot_device] |
685 | if defined extended_primary_loader |
685 | if defined extended_primary_loader |
686 | and eax, 3 |
686 | and eax, 3 |
687 | else |
687 | else |
688 | and eax, 7 |
688 | and eax, 7 |
689 | end if |
689 | end if |
690 | mov si, [preboot_device_msgs+eax*2] |
690 | mov si, [preboot_device_msgs+eax*2] |
691 | call printplain |
691 | call printplain |
692 | .show_remarks: |
692 | .show_remarks: |
693 | ; show remarks in gray color |
693 | ; show remarks in gray color |
694 | mov di, ((21-num_remarks)*80 + 2)*2 |
694 | mov di, ((21-num_remarks)*80 + 2)*2 |
695 | push 0xB800 |
695 | push 0xB800 |
696 | pop es |
696 | pop es |
697 | mov cx, num_remarks |
697 | mov cx, num_remarks |
698 | mov si, remarks |
698 | mov si, remarks |
699 | .write_remarks: |
699 | .write_remarks: |
700 | lodsw |
700 | lodsw |
701 | push si |
701 | push si |
702 | xchg ax, si |
702 | xchg ax, si |
703 | mov ah, 1*16+7 ; background: blue (1), foreground: gray (7) |
703 | mov ah, 1*16+7 ; background: blue (1), foreground: gray (7) |
704 | push di |
704 | push di |
705 | .write_remark: |
705 | .write_remark: |
706 | lodsb |
706 | lodsb |
707 | test al, al |
707 | test al, al |
708 | jz @f |
708 | jz @f |
709 | stosw |
709 | stosw |
710 | jmp .write_remark |
710 | jmp .write_remark |
711 | @@: |
711 | @@: |
712 | pop di |
712 | pop di |
713 | pop si |
713 | pop si |
714 | add di, 80*2 |
714 | add di, 80*2 |
715 | loop .write_remarks |
715 | loop .write_remarks |
716 | .wait: |
716 | .wait: |
717 | _setcursor 25,0 ; out of screen |
717 | _setcursor 25,0 ; out of screen |
718 | ; set timer interrupt handler |
718 | ; set timer interrupt handler |
719 | cli |
719 | cli |
720 | push 0 |
720 | push 0 |
721 | pop es |
721 | pop es |
722 | push dword [es:8*4] |
722 | push dword [es:8*4] |
723 | pop dword [.oldtimer] |
723 | pop dword [.oldtimer] |
724 | push dword [.timer] |
724 | push dword [.timer] |
725 | pop dword [es:8*4] |
725 | pop dword [es:8*4] |
726 | ; mov eax, [es:8*4] |
726 | ; mov eax, [es:8*4] |
727 | ; mov [.oldtimer], eax |
727 | ; mov [.oldtimer], eax |
728 | ; mov eax, [.timer] |
728 | ; mov eax, [.timer] |
729 | ; mov [es:8*4], eax |
729 | ; mov [es:8*4], eax |
730 | sti |
730 | sti |
731 | ; wait for keypressed |
731 | ; wait for keypressed |
732 | xor ax, ax |
732 | xor ax, ax |
733 | int 16h |
733 | int 16h |
734 | push ax |
734 | push ax |
735 | ; restore timer interrupt |
735 | ; restore timer interrupt |
736 | ; push 0 |
736 | ; push 0 |
737 | ; pop es |
737 | ; pop es |
738 | mov eax, [.oldtimer] |
738 | mov eax, [.oldtimer] |
739 | mov [es:8*4], eax |
739 | mov [es:8*4], eax |
740 | mov [.timer], eax |
740 | mov [.timer], eax |
741 | 741 | ||
742 | _setcursor 7,0 |
742 | _setcursor 7,0 |
743 | mov si, space_msg |
743 | mov si, space_msg |
744 | call printplain |
744 | call printplain |
745 | ; clear remarks and restore normal attributes |
745 | ; clear remarks and restore normal attributes |
746 | push es |
746 | push es |
747 | mov di, ((21-num_remarks)*80 + 2)*2 |
747 | mov di, ((21-num_remarks)*80 + 2)*2 |
748 | push 0xB800 |
748 | push 0xB800 |
749 | pop es |
749 | pop es |
750 | mov cx, num_remarks |
750 | mov cx, num_remarks |
751 | mov ax, ' ' + (1*16 + 15)*100h |
751 | mov ax, ' ' + (1*16 + 15)*100h |
752 | @@: |
752 | @@: |
753 | push cx |
753 | push cx |
754 | mov cx, 76 |
754 | mov cx, 76 |
755 | rep stosw |
755 | rep stosw |
756 | pop cx |
756 | pop cx |
757 | add di, 4*2 |
757 | add di, 4*2 |
758 | loop @b |
758 | loop @b |
759 | pop es |
759 | pop es |
760 | pop ax |
760 | pop ax |
761 | ; switch on key |
761 | ; switch on key |
762 | cmp al, 13 |
762 | cmp al, 13 |
763 | jz .continue |
763 | jz .continue |
764 | or al, 20h |
764 | or al, 20h |
765 | cmp al, 'a' ; select graphical mode |
765 | cmp al, 'a' ; select graphical mode |
766 | jz .change_a |
766 | jz .change_a |
767 | cmp al, 'q' ; Trick to make 'A' key on azerty keyboard work |
767 | cmp al, 'q' ; Trick to make 'A' key on azerty keyboard work |
768 | je .change_a |
768 | je .change_a |
769 | cmp al, 'b' ; use BIOS disks? // (selecting YES will make BIOS disks visible as /bd) |
769 | cmp al, 'b' ; use BIOS disks? // (selecting YES will make BIOS disks visible as /bd) |
770 | jz .change_b |
770 | jz .change_b |
771 | cmp al, 'c' ; load kernel in debug mode? // (earlier was: use VRR?) |
771 | cmp al, 'c' ; load kernel in debug mode? // (earlier was: use VRR?) |
772 | jz .change_c |
772 | jz .change_c |
773 | cmp al, 'd' ; start launcher after kernel is loaded? |
773 | cmp al, 'd' ; start launcher after kernel is loaded? |
774 | jz .change_d |
774 | jz .change_d |
775 | cmp al, 'e' ; select boot origin |
775 | cmp al, 'e' ; select boot origin |
776 | jnz .show_remarks |
776 | jnz .show_remarks |
777 | ; e) preboot_device = from where to boot? |
777 | ; e) preboot_device = from where to boot? |
778 | _setcursor 16,0 |
778 | _setcursor 16,0 |
779 | mov si, bdev |
779 | mov si, bdev |
780 | call print |
780 | call print |
781 | if defined extended_primary_loader |
781 | if defined extended_primary_loader |
782 | mov bx, '12' ; range accepted for answer: 1-2 |
782 | mov bx, '12' ; range accepted for answer: 1-2 |
783 | else |
783 | else |
784 | mov bx, '14' ; range accepted for answer: 1-4 |
784 | mov bx, '14' ; range accepted for answer: 1-4 |
785 | end if |
785 | end if |
786 | call getkey |
786 | call getkey |
787 | mov [preboot_device], al |
787 | mov [preboot_device], al |
788 | _setcursor 14,0 |
788 | _setcursor 14,0 |
789 | .d: |
789 | .d: |
790 | if ~ defined extended_primary_loader |
790 | if ~ defined extended_primary_loader |
791 | mov [.bSettingsChanged], 1 |
791 | mov [.bSettingsChanged], 1 |
792 | end if |
792 | end if |
793 | call clear_vmodes_table ;clear vmodes_table |
793 | call clear_vmodes_table ;clear vmodes_table |
794 | jmp .printcfg |
794 | jmp .printcfg |
795 | .change_a: |
795 | .change_a: |
796 | call clear_vmodes_table ;clear vmodes_table |
796 | call clear_vmodes_table ;clear vmodes_table |
797 | .loops: |
797 | .loops: |
798 | call draw_vmodes_table |
798 | call draw_vmodes_table |
799 | _setcursor 25,0 ; out of screen |
799 | _setcursor 25,0 ; out of screen |
800 | xor ax, ax |
800 | xor ax, ax |
801 | int 0x16 |
801 | int 0x16 |
802 | ; call clear_table_cursor ;clear current position of cursor |
802 | ; call clear_table_cursor ;clear current position of cursor |
803 | 803 | ||
804 | mov si, word [cursor_pos] |
804 | mov si, word [cursor_pos] |
805 | 805 | ||
806 | cmp ah, 0x48;x,0x48E0 ; up |
806 | cmp ah, 0x48;x,0x48E0 ; up |
807 | jne .down |
807 | jne .down |
808 | cmp si, modes_table |
808 | cmp si, modes_table |
809 | jbe .loops |
809 | jbe .loops |
810 | sub word [cursor_pos], size_of_step |
810 | sub word [cursor_pos], size_of_step |
811 | jmp .loops |
811 | jmp .loops |
812 | 812 | ||
813 | .down: |
813 | .down: |
814 | cmp ah, 0x50;x,0x50E0 ; down |
814 | cmp ah, 0x50;x,0x50E0 ; down |
815 | jne .pgup |
815 | jne .pgup |
816 | cmp word[es:si+10], -1 |
816 | cmp word[es:si+10], -1 |
817 | je .loops |
817 | je .loops |
818 | add word [cursor_pos], size_of_step |
818 | add word [cursor_pos], size_of_step |
819 | jmp .loops |
819 | jmp .loops |
820 | 820 | ||
821 | .pgup: |
821 | .pgup: |
822 | cmp ah, 0x49 ; page up |
822 | cmp ah, 0x49 ; page up |
823 | jne .pgdn |
823 | jne .pgdn |
824 | sub si, size_of_step*long_v_table |
824 | sub si, size_of_step*long_v_table |
825 | cmp si, modes_table |
825 | cmp si, modes_table |
826 | jae @f |
826 | jae @f |
827 | mov si, modes_table |
827 | mov si, modes_table |
828 | @@: |
828 | @@: |
829 | mov word [cursor_pos], si |
829 | mov word [cursor_pos], si |
830 | mov si, word [home_cursor] |
830 | mov si, word [home_cursor] |
831 | sub si, size_of_step*long_v_table |
831 | sub si, size_of_step*long_v_table |
832 | cmp si, modes_table |
832 | cmp si, modes_table |
833 | jae @f |
833 | jae @f |
834 | mov si, modes_table |
834 | mov si, modes_table |
835 | @@: |
835 | @@: |
836 | mov word [home_cursor], si |
836 | mov word [home_cursor], si |
837 | jmp .loops |
837 | jmp .loops |
838 | 838 | ||
839 | .pgdn: |
839 | .pgdn: |
840 | cmp ah, 0x51 ; page down |
840 | cmp ah, 0x51 ; page down |
841 | jne .enter |
841 | jne .enter |
842 | mov ax, [end_cursor] |
842 | mov ax, [end_cursor] |
843 | add si, size_of_step*long_v_table |
843 | add si, size_of_step*long_v_table |
844 | cmp si, ax |
844 | cmp si, ax |
845 | jb @f |
845 | jb @f |
846 | mov si, ax |
846 | mov si, ax |
847 | sub si, size_of_step |
847 | sub si, size_of_step |
848 | @@: |
848 | @@: |
849 | mov word [cursor_pos], si |
849 | mov word [cursor_pos], si |
850 | mov si, word [home_cursor] |
850 | mov si, word [home_cursor] |
851 | sub ax, size_of_step*long_v_table |
851 | sub ax, size_of_step*long_v_table |
852 | add si, size_of_step*long_v_table |
852 | add si, size_of_step*long_v_table |
853 | cmp si, ax |
853 | cmp si, ax |
854 | jb @f |
854 | jb @f |
855 | mov si, ax |
855 | mov si, ax |
856 | @@: |
856 | @@: |
857 | mov word [home_cursor], si |
857 | mov word [home_cursor], si |
858 | jmp .loops |
858 | jmp .loops |
859 | 859 | ||
860 | .enter: |
860 | .enter: |
861 | cmp al, 0x0D;x,0x1C0D ; enter |
861 | cmp al, 0x0D;x,0x1C0D ; enter |
862 | jne .loops |
862 | jne .loops |
863 | push word [cursor_pos] |
863 | push word [cursor_pos] |
864 | pop bp |
864 | pop bp |
865 | push word [es:bp] |
865 | push word [es:bp] |
866 | pop word [x_save] |
866 | pop word [x_save] |
867 | push word [es:bp+2] |
867 | push word [es:bp+2] |
868 | pop word [y_save] |
868 | pop word [y_save] |
869 | push word [es:bp+6] |
869 | push word [es:bp+6] |
870 | pop word [number_vm] |
870 | pop word [number_vm] |
871 | mov word [preboot_graph], bp ;save choose |
871 | mov word [preboot_graph], bp ;save choose |
872 | 872 | ||
873 | jmp .d |
873 | jmp .d |
874 | 874 | ||
875 | .change_b: ; b) preboot_biosdisk = use BIOS disks through V86 emulation? |
875 | .change_b: ; b) preboot_biosdisk = use BIOS disks through V86 emulation? |
876 | _setcursor 16,0 |
876 | _setcursor 16,0 |
877 | ; mov si, ask_dma // (earlier was: preboot_dma = use DMA access?) |
877 | ; mov si, ask_dma // (earlier was: preboot_dma = use DMA access?) |
878 | ; call print |
878 | ; call print |
879 | ; mov bx, '13' ; range accepted for answer: 1-3 |
879 | ; mov bx, '13' ; range accepted for answer: 1-3 |
880 | ; call getkey |
880 | ; call getkey |
881 | ; mov [preboot_dma], al |
881 | ; mov [preboot_dma], al |
882 | mov si, ask_bd |
882 | mov si, ask_bd |
883 | call print |
883 | call print |
884 | mov bx, '12' ; range accepted for answer: 1-2 |
884 | mov bx, '12' ; range accepted for answer: 1-2 |
885 | call getkey |
885 | call getkey |
886 | mov [preboot_biosdisk], al |
886 | mov [preboot_biosdisk], al |
887 | _setcursor 11,0 |
887 | _setcursor 11,0 |
888 | jmp .d |
888 | jmp .d |
889 | ;.change_c: ; // VRR is an obsolete functionality, used only with CRT monitors |
889 | ;.change_c: ; // VRR is an obsolete functionality, used only with CRT monitors |
890 | ; _setcursor 16,0 |
890 | ; _setcursor 16,0 |
891 | ; mov si, vrrmprint |
891 | ; mov si, vrrmprint |
892 | ; call print |
892 | ; call print |
893 | ; mov bx, '12' ; range accepted for answer: 1-2 |
893 | ; mov bx, '12' ; range accepted for answer: 1-2 |
894 | ; call getkey |
894 | ; call getkey |
895 | ; mov [preboot_vrrm], al |
895 | ; mov [preboot_vrrm], al |
896 | ; _setcursor 12,0 |
896 | ; _setcursor 12,0 |
897 | ; jmp .d |
897 | ; jmp .d |
898 | .change_c: ; c) preboot_debug = duplicates kernel debug output to the screen |
898 | .change_c: ; c) preboot_debug = duplicates kernel debug output to the screen |
899 | _setcursor 16,0 |
899 | _setcursor 16,0 |
900 | mov si, ask_debug |
900 | mov si, ask_debug |
901 | call print |
901 | call print |
902 | mov bx, '12' ; range accepted for answer: 1-2 |
902 | mov bx, '12' ; range accepted for answer: 1-2 |
903 | call getkey |
903 | call getkey |
904 | mov [preboot_debug], al |
904 | mov [preboot_debug], al |
905 | _setcursor 12,0 |
905 | _setcursor 12,0 |
906 | jmp .d |
906 | jmp .d |
907 | .change_d: ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
907 | .change_d: ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded? |
908 | _setcursor 16,0 |
908 | _setcursor 16,0 |
909 | mov si, ask_launcher |
909 | mov si, ask_launcher |
910 | call print |
910 | call print |
911 | mov bx, '12' ; range accepted for answer: 1-2 |
911 | mov bx, '12' ; range accepted for answer: 1-2 |
912 | call getkey |
912 | call getkey |
913 | mov [preboot_launcher], al |
913 | mov [preboot_launcher], al |
914 | _setcursor 13,0 |
914 | _setcursor 13,0 |
915 | jmp .d |
915 | jmp .d |
916 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
916 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
917 | .say_on_off: |
917 | .say_on_off: |
918 | pushf |
918 | pushf |
919 | call print |
919 | call print |
920 | mov si, on_msg |
920 | mov si, on_msg |
921 | popf |
921 | popf |
922 | jz @f |
922 | jz @f |
923 | mov si, off_msg |
923 | mov si, off_msg |
924 | @@: |
924 | @@: |
925 | jmp printplain |
925 | jmp printplain |
926 | ; novesa and vervesa strings are not used at the moment of executing this code |
926 | ; novesa and vervesa strings are not used at the moment of executing this code |
927 | virtual at novesa |
927 | virtual at novesa |
928 | .oldtimer dd ? |
928 | .oldtimer dd ? |
929 | .starttime dd ? |
929 | .starttime dd ? |
930 | if ~ defined extended_primary_loader |
930 | if ~ defined extended_primary_loader |
931 | .bSettingsChanged db ? |
931 | .bSettingsChanged db ? |
932 | end if |
932 | end if |
933 | .timer dd ? |
933 | .timer dd ? |
934 | end virtual |
934 | end virtual |
935 | if ~ defined extended_primary_loader |
935 | if ~ defined extended_primary_loader |
936 | .loader_block dd -1 |
936 | .loader_block dd -1 |
937 | end if |
937 | end if |
938 | .gettime: |
938 | .gettime: |
939 | mov ah, 0 |
939 | mov ah, 0 |
940 | int 1Ah |
940 | int 1Ah |
941 | xchg ax, cx |
941 | xchg ax, cx |
942 | shl eax, 10h |
942 | shl eax, 10h |
943 | xchg ax, dx |
943 | xchg ax, dx |
944 | ret |
944 | ret |
945 | .newtimer: |
945 | .newtimer: |
946 | push ds |
946 | push ds |
947 | push cs |
947 | push cs |
948 | pop ds |
948 | pop ds |
949 | pushf |
949 | pushf |
950 | call [.oldtimer] |
950 | call [.oldtimer] |
951 | pushad |
951 | pushad |
952 | call .gettime |
952 | call .gettime |
953 | sub eax, [.starttime] |
953 | sub eax, [.starttime] |
954 | if defined extended_primary_loader |
954 | if defined extended_primary_loader |
955 | sub ax, [preboot_timeout] |
955 | sub ax, [preboot_timeout] |
956 | else |
956 | else |
957 | sub ax, 18*5 |
957 | sub ax, 18*5 |
958 | end if |
958 | end if |
959 | jae .timergo |
959 | jae .timergo |
960 | neg ax |
960 | neg ax |
961 | add ax, 18-1 |
961 | add ax, 18-1 |
962 | mov bx, 18 |
962 | mov bx, 18 |
963 | xor dx, dx |
963 | xor dx, dx |
964 | div bx |
964 | div bx |
965 | if lang eq ru |
965 | if lang eq ru |
966 | ; подождите 5 секунд, 4/3/2 секунды, 1 секунду |
966 | ; подождите 5 секунд, 4/3/2 секунды, 1 секунду |
967 | cmp al, 5 |
967 | cmp al, 5 |
968 | mov cl, ' ' |
968 | mov cl, ' ' |
969 | jae @f |
969 | jae @f |
970 | cmp al, 1 |
970 | cmp al, 1 |
971 | mov cl, 0xE3 ; 'у' in cp866 |
971 | mov cl, 0xE3 ; 'у' in cp866 |
972 | jz @f |
972 | jz @f |
973 | mov cl, 0xEB ; 'ы' in cp866 |
973 | mov cl, 0xEB ; 'ы' in cp866 |
974 | @@: |
974 | @@: |
975 | mov [time_str+9], cl |
975 | mov [time_str+9], cl |
976 | else if lang eq et |
976 | else if lang eq et |
977 | cmp al, 1 |
977 | cmp al, 1 |
978 | ja @f |
978 | ja @f |
979 | mov byte [time_str+9], ' ' |
979 | mov byte [time_str+9], ' ' |
980 | mov byte [time_str+10], ' ' |
980 | mov byte [time_str+10], ' ' |
981 | @@: |
981 | @@: |
982 | else if lang eq sp |
982 | else if lang eq sp |
983 | ; esperar 5/4/3/2 segundos, 1 segundo |
983 | ; esperar 5/4/3/2 segundos, 1 segundo |
984 | cmp al, 1 |
984 | cmp al, 1 |
985 | mov cl, 's' |
985 | mov cl, 's' |
986 | ja @f |
986 | ja @f |
987 | mov cl, ' ' |
987 | mov cl, ' ' |
988 | @@: |
988 | @@: |
989 | mov [time_str+10], cl |
989 | mov [time_str+10], cl |
990 | else |
990 | else |
991 | ; wait 5/4/3/2 seconds, 1 second |
991 | ; wait 5/4/3/2 seconds, 1 second |
992 | cmp al, 1 |
992 | cmp al, 1 |
993 | mov cl, 's' |
993 | mov cl, 's' |
994 | ja @f |
994 | ja @f |
995 | mov cl, ' ' |
995 | mov cl, ' ' |
996 | @@: |
996 | @@: |
997 | mov [time_str+9], cl |
997 | mov [time_str+9], cl |
998 | end if |
998 | end if |
999 | add al, '0' |
999 | add al, '0' |
1000 | mov [time_str+1], al |
1000 | mov [time_str+1], al |
1001 | mov si, time_msg |
1001 | mov si, time_msg |
1002 | _setcursor 7,0 |
1002 | _setcursor 7,0 |
1003 | call print |
1003 | call print |
1004 | _setcursor 25,0 |
1004 | _setcursor 25,0 |
1005 | popad |
1005 | popad |
1006 | pop ds |
1006 | pop ds |
1007 | iret |
1007 | iret |
1008 | .timergo: |
1008 | .timergo: |
1009 | push 0 |
1009 | push 0 |
1010 | pop es |
1010 | pop es |
1011 | mov eax, [.oldtimer] |
1011 | mov eax, [.oldtimer] |
1012 | mov [es:8*4], eax |
1012 | mov [es:8*4], eax |
1013 | mov sp, 0EC00h |
1013 | mov sp, 0EC00h |
1014 | .continue: |
1014 | .continue: |
1015 | sti |
1015 | sti |
1016 | _setcursor 6,0 |
1016 | _setcursor 6,0 |
1017 | mov si, space_msg |
1017 | mov si, space_msg |
1018 | call printplain |
1018 | call printplain |
1019 | call printplain |
1019 | call printplain |
1020 | _setcursor 6,0 |
1020 | _setcursor 6,0 |
1021 | mov si, loading_msg |
1021 | mov si, loading_msg |
1022 | call print |
1022 | call print |
1023 | _setcursor 16,0 |
1023 | _setcursor 16,0 |
1024 | if ~ defined extended_primary_loader |
1024 | if ~ defined extended_primary_loader |
1025 | cmp [.bSettingsChanged], 0 |
1025 | cmp [.bSettingsChanged], 0 |
1026 | jz .load |
1026 | jz .load |
1027 | cmp [.loader_block], -1 |
1027 | cmp [.loader_block], -1 |
1028 | jz .load |
1028 | jz .load |
1029 | les bx, [.loader_block] |
1029 | les bx, [.loader_block] |
1030 | mov eax, [es:bx+3] |
1030 | mov eax, [es:bx+3] |
1031 | push ds |
1031 | push ds |
1032 | pop es |
1032 | pop es |
1033 | test eax, eax |
1033 | test eax, eax |
1034 | jz .load |
1034 | jz .load |
1035 | push eax |
1035 | push eax |
1036 | mov si, save_quest |
1036 | mov si, save_quest |
1037 | call print |
1037 | call print |
1038 | .waityn: |
1038 | .waityn: |
1039 | mov ah, 0 |
1039 | mov ah, 0 |
1040 | int 16h |
1040 | int 16h |
1041 | or al, 20h |
1041 | or al, 20h |
1042 | cmp al, 'n' |
1042 | cmp al, 'n' |
1043 | jz .loadc |
1043 | jz .loadc |
1044 | if lang eq sp |
1044 | if lang eq sp |
1045 | cmp al, 's' |
1045 | cmp al, 's' |
1046 | else |
1046 | else |
1047 | cmp al, 'y' |
1047 | cmp al, 'y' |
1048 | end if |
1048 | end if |
1049 | jnz .waityn |
1049 | jnz .waityn |
1050 | call putchar |
1050 | call putchar |
1051 | mov byte [space_msg+80], 186 |
1051 | mov byte [space_msg+80], 186 |
1052 | 1052 | ||
1053 | pop eax |
1053 | pop eax |
1054 | push cs |
1054 | push cs |
1055 | push .cont |
1055 | push .cont |
1056 | push eax |
1056 | push eax |
1057 | retf ;call back |
1057 | retf ;call back |
1058 | .loadc: |
1058 | .loadc: |
1059 | pop eax |
1059 | pop eax |
1060 | .cont: |
1060 | .cont: |
1061 | push cs |
1061 | push cs |
1062 | pop ds |
1062 | pop ds |
1063 | mov si, space_msg |
1063 | mov si, space_msg |
1064 | mov byte [si+80], 0 |
1064 | mov byte [si+80], 0 |
1065 | _setcursor 16,0 |
1065 | _setcursor 16,0 |
1066 | call printplain |
1066 | call printplain |
1067 | _setcursor 16,0 |
1067 | _setcursor 16,0 |
1068 | .load: |
1068 | .load: |
1069 | end if |
1069 | end if |
1070 | ; \end{diamond}[02.12.2005] |
1070 | ; \end{diamond}[02.12.2005] |
1071 | 1071 | ||
1072 | ; ASK GRAPHICS MODE |
1072 | ; ASK GRAPHICS MODE |
1073 | 1073 | ||
1074 | call set_vmode |
1074 | call set_vmode |
1075 | 1075 | ||
1076 | ; GRAPHICS ACCELERATION |
1076 | ; GRAPHICS ACCELERATION |
1077 | ; force yes |
1077 | ; force yes |
1078 | mov [es:BOOT_MTRR], byte 1 |
1078 | mov [es:BOOT_MTRR], byte 1 |
1079 | 1079 | ||
1080 | ; DMA ACCESS TO HD |
1080 | ; DMA ACCESS TO HD |
1081 | 1081 | ||
1082 | mov al, [preboot_dma] |
1082 | mov al, [preboot_dma] |
1083 | mov [es:BOOT_DMA], al |
1083 | mov [es:BOOT_DMA], al |
1084 | 1084 | ||
1085 | ;; VRR_M USE |
1085 | ;; VRR_M USE |
1086 | ; |
1086 | ; |
1087 | ; mov al,[preboot_vrrm] |
1087 | ; mov al,[preboot_vrrm] |
1088 | ; mov [es:BOOT_VRR], al ;// 0x9030 |
1088 | ; mov [es:BOOT_VRR], al ;// 0x9030 |
1089 | 1089 | ||
1090 | ; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen. |
1090 | ; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen. |
1091 | mov al, [preboot_debug] |
1091 | mov al, [preboot_debug] |
1092 | mov [es:BOOT_DEBUG_PRINT], al ;// 0x901E |
1092 | mov [es:BOOT_DEBUG_PRINT], al ;// 0x901E |
1093 | 1093 | ||
1094 | ; Start the first app (right now it's LAUNCHER) after kernel is loaded? |
1094 | ; Start the first app (right now it's LAUNCHER) after kernel is loaded? |
1095 | mov al, [preboot_launcher] |
1095 | mov al, [preboot_launcher] |
1096 | mov [es:BOOT_LAUNCHER_START], al ;// 0x901D |
1096 | mov [es:BOOT_LAUNCHER_START], al ;// 0x901D |
1097 | 1097 | ||
1098 | ; BOOT DEVICE |
1098 | ; BOOT DEVICE |
1099 | 1099 | ||
1100 | mov al, [preboot_device] |
1100 | mov al, [preboot_device] |
1101 | dec al |
1101 | dec al |
1102 | mov [boot_dev], al |
1102 | mov [boot_dev], al |
1103 | 1103 | ||
1104 | ; GET MEMORY MAP |
1104 | ; GET MEMORY MAP |
1105 | include '../detect/biosmem.inc' |
1105 | include '../detect/biosmem.inc' |
1106 | 1106 | ||
1107 | ; READ DISKETTE TO MEMORY |
1107 | ; READ DISKETTE TO MEMORY |
1108 | 1108 | ||
1109 | cmp [boot_dev], 0 |
1109 | cmp [boot_dev], 0 |
1110 | jne no_sys_on_floppy |
1110 | jne no_sys_on_floppy |
1111 | mov si, diskload |
1111 | mov si, diskload |
1112 | call print |
1112 | call print |
1113 | xor ax, ax ; reset drive |
1113 | xor ax, ax ; reset drive |
1114 | xor dx, dx |
1114 | xor dx, dx |
1115 | int 0x13 |
1115 | int 0x13 |
1116 | ; do we boot from CD-ROM? |
1116 | ; do we boot from CD-ROM? |
1117 | mov ah, 41h |
1117 | mov ah, 41h |
1118 | mov bx, 55AAh |
1118 | mov bx, 55AAh |
1119 | xor dx, dx |
1119 | xor dx, dx |
1120 | int 0x13 |
1120 | int 0x13 |
1121 | jc .nocd |
1121 | jc .nocd |
1122 | cmp bx, 0AA55h |
1122 | cmp bx, 0AA55h |
1123 | jnz .nocd |
1123 | jnz .nocd |
1124 | mov ah, 48h |
1124 | mov ah, 48h |
1125 | push ds |
1125 | push ds |
1126 | push es |
1126 | push es |
1127 | pop ds |
1127 | pop ds |
1128 | mov si, 0xa000 |
1128 | mov si, 0xa000 |
1129 | mov word [si], 30 |
1129 | mov word [si], 30 |
1130 | int 0x13 |
1130 | int 0x13 |
1131 | pop ds |
1131 | pop ds |
1132 | jc .nocd |
1132 | jc .nocd |
1133 | push ds |
1133 | push ds |
1134 | lds si, [es:si+26] |
1134 | lds si, [es:si+26] |
1135 | test byte [ds:si+10], 40h |
1135 | test byte [ds:si+10], 40h |
1136 | pop ds |
1136 | pop ds |
1137 | jz .nocd |
1137 | jz .nocd |
1138 | ; yes - read all floppy by 18 sectors |
1138 | ; yes - read all floppy by 18 sectors |
1139 | 1139 | ||
1140 | ; TODO: !!!! read only first sector and set variables !!!!! |
1140 | ; TODO: !!!! read only first sector and set variables !!!!! |
1141 | ; ... |
1141 | ; ... |
1142 | ; TODO: !!! then read flippy image track by track |
1142 | ; TODO: !!! then read flippy image track by track |
1143 | 1143 | ||
1144 | mov cx, 0x0001 ; startcyl,startsector |
1144 | mov cx, 0x0001 ; startcyl,startsector |
1145 | .a1: |
1145 | .a1: |
1146 | push cx dx |
1146 | push cx dx |
1147 | mov al, 18 |
1147 | mov al, 18 |
1148 | mov bx, 0xa000 |
1148 | mov bx, 0xa000 |
1149 | call boot_read_floppy |
1149 | call boot_read_floppy |
1150 | mov si, movedesc |
1150 | mov si, movedesc |
1151 | push es |
1151 | push es |
1152 | push ds |
1152 | push ds |
1153 | pop es |
1153 | pop es |
1154 | mov cx, 256*18 |
1154 | mov cx, 256*18 |
1155 | mov ah, 0x87 |
1155 | mov ah, 0x87 |
1156 | int 0x15 |
1156 | int 0x15 |
1157 | pop es |
1157 | pop es |
1158 | pop dx cx |
1158 | pop dx cx |
1159 | test ah, ah |
1159 | test ah, ah |
1160 | jnz sayerr_floppy |
1160 | jnz sayerr_floppy |
1161 | add dword [si+8*3+2], 512*18 |
1161 | add dword [si+8*3+2], 512*18 |
1162 | inc dh |
1162 | inc dh |
1163 | cmp dh, 2 |
1163 | cmp dh, 2 |
1164 | jnz .a1 |
1164 | jnz .a1 |
1165 | mov dh, 0 |
1165 | mov dh, 0 |
1166 | inc ch |
1166 | inc ch |
1167 | cmp ch, 80 |
1167 | cmp ch, 80 |
1168 | jae ok_sys_on_floppy |
1168 | jae ok_sys_on_floppy |
1169 | pusha |
1169 | pusha |
1170 | mov al, ch |
1170 | mov al, ch |
1171 | shr ch, 2 |
1171 | shr ch, 2 |
1172 | add al, ch |
1172 | add al, ch |
1173 | aam |
1173 | aam |
1174 | xchg al, ah |
1174 | xchg al, ah |
1175 | add ax, '00' |
1175 | add ax, '00' |
1176 | mov si, pros |
1176 | mov si, pros |
1177 | mov [si], ax |
1177 | mov [si], ax |
1178 | call printplain |
1178 | call printplain |
1179 | popa |
1179 | popa |
1180 | jmp .a1 |
1180 | jmp .a1 |
1181 | .nocd: |
1181 | .nocd: |
1182 | ; no - read only used sectors from floppy |
1182 | ; no - read only used sectors from floppy |
1183 | ; now load floppy image to memory |
1183 | ; now load floppy image to memory |
1184 | ; at first load boot sector and first FAT table |
1184 | ; at first load boot sector and first FAT table |
1185 | 1185 | ||
1186 | ; read only first sector and fill variables |
1186 | ; read only first sector and fill variables |
1187 | mov cx, 0x0001 ; first logical sector |
1187 | mov cx, 0x0001 ; first logical sector |
1188 | xor dx, dx ; head = 0, drive = 0 (a:) |
1188 | xor dx, dx ; head = 0, drive = 0 (a:) |
1189 | mov al, 1 ; read one sector |
1189 | mov al, 1 ; read one sector |
1190 | mov bx, 0xB000 ; es:bx -> data area |
1190 | mov bx, 0xB000 ; es:bx -> data area |
1191 | call boot_read_floppy |
1191 | call boot_read_floppy |
1192 | ; fill the necessary parameters to work with a floppy |
1192 | ; fill the necessary parameters to work with a floppy |
1193 | mov ax, word [es:bx+24] |
1193 | mov ax, word [es:bx+24] |
1194 | mov word [BPB_SecPerTrk], ax |
1194 | mov word [BPB_SecPerTrk], ax |
1195 | mov ax, word [es:bx+26] |
1195 | mov ax, word [es:bx+26] |
1196 | mov word [BPB_NumHeads], ax |
1196 | mov word [BPB_NumHeads], ax |
1197 | mov ax, word [es:bx+17] |
1197 | mov ax, word [es:bx+17] |
1198 | mov word [BPB_RootEntCnt], ax |
1198 | mov word [BPB_RootEntCnt], ax |
1199 | mov ax, word [es:bx+14] |
1199 | mov ax, word [es:bx+14] |
1200 | mov word [BPB_RsvdSecCnt], ax |
1200 | mov word [BPB_RsvdSecCnt], ax |
1201 | mov ax, word [es:bx+19] |
1201 | mov ax, word [es:bx+19] |
1202 | mov word [BPB_TotSec16], ax |
1202 | mov word [BPB_TotSec16], ax |
1203 | mov al, byte [es:bx+13] |
1203 | mov al, byte [es:bx+13] |
1204 | mov byte [BPB_SecPerClus], al |
1204 | mov byte [BPB_SecPerClus], al |
1205 | mov al, byte [es:bx+16] |
1205 | mov al, byte [es:bx+16] |
1206 | mov byte [BPB_NumFATs], al |
1206 | mov byte [BPB_NumFATs], al |
1207 | ; |
1207 | ; |
1208 | mov ax, word [es:bx+22] |
1208 | mov ax, word [es:bx+22] |
1209 | mov word [BPB_FATSz16], ax |
1209 | mov word [BPB_FATSz16], ax |
1210 | mov cx, word [es:bx+11] |
1210 | mov cx, word [es:bx+11] |
1211 | mov word [BPB_BytsPerSec], cx |
1211 | mov word [BPB_BytsPerSec], cx |
1212 | 1212 | ||
1213 | ; count of clusters in FAT12 ((size_of_FAT*2)/3) |
1213 | ; count of clusters in FAT12 ((size_of_FAT*2)/3) |
1214 | ; mov ax, word [BPB_FATSz16] |
1214 | ; mov ax, word [BPB_FATSz16] |
1215 | ; mov cx, word [BPB_BytsPerSec] |
1215 | ; mov cx, word [BPB_BytsPerSec] |
1216 | ;end |
1216 | ;end |
1217 | xor dx, dx |
1217 | xor dx, dx |
1218 | mul cx |
1218 | mul cx |
1219 | shl ax, 1 |
1219 | shl ax, 1 |
1220 | mov cx, 3 |
1220 | mov cx, 3 |
1221 | div cx ; now ax - number of clusters in FAT12 |
1221 | div cx ; now ax - number of clusters in FAT12 |
1222 | mov word [end_of_FAT], ax |
1222 | mov word [end_of_FAT], ax |
1223 | 1223 | ||
1224 | ; load first FAT table |
1224 | ; load first FAT table |
1225 | mov cx, 0x0002 ; startcyl,startsector ; TODO!!!!! |
1225 | mov cx, 0x0002 ; startcyl,startsector ; TODO!!!!! |
1226 | xor dx, dx ; starthead,drive |
1226 | xor dx, dx ; starthead,drive |
1227 | mov al, byte [BPB_FATSz16] ; no of sectors to read |
1227 | mov al, byte [BPB_FATSz16] ; no of sectors to read |
1228 | add bx, word [BPB_BytsPerSec] ; es:bx -> data area |
1228 | add bx, word [BPB_BytsPerSec] ; es:bx -> data area |
1229 | call boot_read_floppy |
1229 | call boot_read_floppy |
1230 | mov bx, 0xB000 |
1230 | mov bx, 0xB000 |
1231 | 1231 | ||
1232 | ; and copy them to extended memory |
1232 | ; and copy them to extended memory |
1233 | mov si, movedesc |
1233 | mov si, movedesc |
1234 | mov [si+8*2+3], bh ; from |
1234 | mov [si+8*2+3], bh ; from |
1235 | 1235 | ||
1236 | mov ax, word [BPB_BytsPerSec] |
1236 | mov ax, word [BPB_BytsPerSec] |
1237 | shr ax, 1 ; words per sector |
1237 | shr ax, 1 ; words per sector |
1238 | mov cx, word [BPB_RsvdSecCnt] |
1238 | mov cx, word [BPB_RsvdSecCnt] |
1239 | add cx, word [BPB_FATSz16] |
1239 | add cx, word [BPB_FATSz16] |
1240 | mul cx |
1240 | mul cx |
1241 | push ax ; save to stack count of words in boot+FAT |
1241 | push ax ; save to stack count of words in boot+FAT |
1242 | xchg ax, cx |
1242 | xchg ax, cx |
1243 | 1243 | ||
1244 | push es |
1244 | push es |
1245 | push ds |
1245 | push ds |
1246 | pop es |
1246 | pop es |
1247 | mov ah, 0x87 |
1247 | mov ah, 0x87 |
1248 | int 0x15 |
1248 | int 0x15 |
1249 | pop es |
1249 | pop es |
1250 | test ah, ah |
1250 | test ah, ah |
1251 | jz @f |
1251 | jz @f |
1252 | sayerr_floppy: |
1252 | sayerr_floppy: |
1253 | mov dx, 0x3f2 |
1253 | mov dx, 0x3f2 |
1254 | mov al, 0 |
1254 | mov al, 0 |
1255 | out dx, al |
1255 | out dx, al |
1256 | sayerr_memmove: |
1256 | sayerr_memmove: |
1257 | mov si, memmovefailed |
1257 | mov si, memmovefailed |
1258 | jmp sayerr_plain |
1258 | jmp sayerr_plain |
1259 | @@: |
1259 | @@: |
1260 | pop ax ; restore from stack count of words in boot+FAT |
1260 | pop ax ; restore from stack count of words in boot+FAT |
1261 | shl ax, 1 ; make bytes count from count of words |
1261 | shl ax, 1 ; make bytes count from count of words |
1262 | and eax, 0ffffh |
1262 | and eax, 0ffffh |
1263 | add dword [si+8*3+2], eax |
1263 | add dword [si+8*3+2], eax |
1264 | 1264 | ||
1265 | ; copy first FAT to second copy |
1265 | ; copy first FAT to second copy |
1266 | ; TODO: BPB_NumFATs !!!!! |
1266 | ; TODO: BPB_NumFATs !!!!! |
1267 | add bx, word [BPB_BytsPerSec] ; !!! TODO: may be need multiply by BPB_RsvdSecCnt !!! |
1267 | add bx, word [BPB_BytsPerSec] ; !!! TODO: may be need multiply by BPB_RsvdSecCnt !!! |
1268 | mov byte [si+8*2+3], bh ; bx - begin of FAT |
1268 | mov byte [si+8*2+3], bh ; bx - begin of FAT |
1269 | 1269 | ||
1270 | mov ax, word [BPB_BytsPerSec] |
1270 | mov ax, word [BPB_BytsPerSec] |
1271 | shr ax, 1 ; words per sector |
1271 | shr ax, 1 ; words per sector |
1272 | mov cx, word [BPB_FATSz16] |
1272 | mov cx, word [BPB_FATSz16] |
1273 | mul cx |
1273 | mul cx |
1274 | mov cx, ax ; cx - count of words in FAT |
1274 | mov cx, ax ; cx - count of words in FAT |
1275 | 1275 | ||
1276 | push es |
1276 | push es |
1277 | push ds |
1277 | push ds |
1278 | pop es |
1278 | pop es |
1279 | mov ah, 0x87 |
1279 | mov ah, 0x87 |
1280 | int 0x15 |
1280 | int 0x15 |
1281 | pop es |
1281 | pop es |
1282 | test ah, ah |
1282 | test ah, ah |
1283 | jnz sayerr_floppy |
1283 | jnz sayerr_floppy |
1284 | 1284 | ||
1285 | mov ax, cx |
1285 | mov ax, cx |
1286 | shl ax, 1 |
1286 | shl ax, 1 |
1287 | and eax, 0ffffh ; ax - count of bytes in FAT |
1287 | and eax, 0ffffh ; ax - count of bytes in FAT |
1288 | add dword [si+8*3+2], eax |
1288 | add dword [si+8*3+2], eax |
1289 | 1289 | ||
1290 | ; reading RootDir |
1290 | ; reading RootDir |
1291 | ; TODO: BPB_NumFATs |
1291 | ; TODO: BPB_NumFATs |
1292 | add bx, ax |
1292 | add bx, ax |
1293 | add bx, 100h |
1293 | add bx, 100h |
1294 | and bx, 0ff00h ; bx - place in buffer to write RootDir |
1294 | and bx, 0ff00h ; bx - place in buffer to write RootDir |
1295 | push bx |
1295 | push bx |
1296 | 1296 | ||
1297 | mov bx, word [BPB_BytsPerSec] |
1297 | mov bx, word [BPB_BytsPerSec] |
1298 | shr bx, 5 ; divide bx by 32 |
1298 | shr bx, 5 ; divide bx by 32 |
1299 | mov ax, word [BPB_RootEntCnt] |
1299 | mov ax, word [BPB_RootEntCnt] |
1300 | xor dx, dx |
1300 | xor dx, dx |
1301 | div bx |
1301 | div bx |
1302 | push ax ; ax - count of RootDir sectors |
1302 | push ax ; ax - count of RootDir sectors |
1303 | 1303 | ||
1304 | mov ax, word [BPB_FATSz16] |
1304 | mov ax, word [BPB_FATSz16] |
1305 | xor cx, cx |
1305 | xor cx, cx |
1306 | mov cl, byte [BPB_NumFATs] |
1306 | mov cl, byte [BPB_NumFATs] |
1307 | mul cx |
1307 | mul cx |
1308 | add ax, word [BPB_RsvdSecCnt] ; ax - first sector of RootDir |
1308 | add ax, word [BPB_RsvdSecCnt] ; ax - first sector of RootDir |
1309 | 1309 | ||
1310 | mov word [FirstDataSector], ax |
1310 | mov word [FirstDataSector], ax |
1311 | pop bx |
1311 | pop bx |
1312 | push bx |
1312 | push bx |
1313 | add word [FirstDataSector], bx ; Begin of data region of floppy |
1313 | add word [FirstDataSector], bx ; Begin of data region of floppy |
1314 | 1314 | ||
1315 | ; read RootDir |
1315 | ; read RootDir |
1316 | call conv_abs_to_THS |
1316 | call conv_abs_to_THS |
1317 | pop ax |
1317 | pop ax |
1318 | pop bx ; place in buffer to write |
1318 | pop bx ; place in buffer to write |
1319 | push ax |
1319 | push ax |
1320 | call boot_read_floppy ; read RootDir into buffer |
1320 | call boot_read_floppy ; read RootDir into buffer |
1321 | ; copy RootDir |
1321 | ; copy RootDir |
1322 | mov byte [si+8*2+3], bh ; from buffer |
1322 | mov byte [si+8*2+3], bh ; from buffer |
1323 | pop ax ; ax = count of RootDir sectors |
1323 | pop ax ; ax = count of RootDir sectors |
1324 | mov cx, word [BPB_BytsPerSec] |
1324 | mov cx, word [BPB_BytsPerSec] |
1325 | mul cx |
1325 | mul cx |
1326 | shr ax, 1 |
1326 | shr ax, 1 |
1327 | mov cx, ax ; count of words to copy |
1327 | mov cx, ax ; count of words to copy |
1328 | push es |
1328 | push es |
1329 | push ds |
1329 | push ds |
1330 | pop es |
1330 | pop es |
1331 | mov ah, 0x87 |
1331 | mov ah, 0x87 |
1332 | int 0x15 |
1332 | int 0x15 |
1333 | pop es |
1333 | pop es |
1334 | 1334 | ||
1335 | mov ax, cx |
1335 | mov ax, cx |
1336 | shl ax, 1 |
1336 | shl ax, 1 |
1337 | and eax, 0ffffh ; ax - count of bytes in RootDir |
1337 | and eax, 0ffffh ; ax - count of bytes in RootDir |
1338 | add dword [si+8*3+2], eax ; add count of bytes copied |
1338 | add dword [si+8*3+2], eax ; add count of bytes copied |
1339 | 1339 | ||
1340 | ; Reading data clusters from floppy |
1340 | ; Reading data clusters from floppy |
1341 | mov byte [si+8*2+3], bh |
1341 | mov byte [si+8*2+3], bh |
1342 | push bx |
1342 | push bx |
1343 | 1343 | ||
1344 | mov di, 2 ; First data cluster |
1344 | mov di, 2 ; First data cluster |
1345 | .read_loop: |
1345 | .read_loop: |
1346 | mov bx, di |
1346 | mov bx, di |
1347 | shr bx, 1 ; bx+di = di*1.5 |
1347 | shr bx, 1 ; bx+di = di*1.5 |
1348 | jnc .even |
1348 | jnc .even |
1349 | test word [es:bx+di+0xB200], 0xFFF0 ; TODO: may not be 0xB200 !!! |
1349 | test word [es:bx+di+0xB200], 0xFFF0 ; TODO: may not be 0xB200 !!! |
1350 | jmp @f |
1350 | jmp @f |
1351 | .even: |
1351 | .even: |
1352 | test word [es:bx+di+0xB200], 0xFFF ; TODO: may not be 0xB200 !!! |
1352 | test word [es:bx+di+0xB200], 0xFFF ; TODO: may not be 0xB200 !!! |
1353 | 1353 | ||
1354 | @@: |
1354 | @@: |
1355 | jz .skip |
1355 | jz .skip |
1356 | ; read cluster di |
1356 | ; read cluster di |
1357 | ;.read: |
1357 | ;.read: |
1358 | ;conv cluster di to abs. sector ax |
1358 | ;conv cluster di to abs. sector ax |
1359 | ; ax = (N-2) * BPB_SecPerClus + FirstDataSector |
1359 | ; ax = (N-2) * BPB_SecPerClus + FirstDataSector |
1360 | mov ax, di |
1360 | mov ax, di |
1361 | sub ax, 2 |
1361 | sub ax, 2 |
1362 | xor bx, bx |
1362 | xor bx, bx |
1363 | mov bl, byte [BPB_SecPerClus] |
1363 | mov bl, byte [BPB_SecPerClus] |
1364 | mul bx |
1364 | mul bx |
1365 | add ax, word [FirstDataSector] |
1365 | add ax, word [FirstDataSector] |
1366 | call conv_abs_to_THS |
1366 | call conv_abs_to_THS |
1367 | pop bx |
1367 | pop bx |
1368 | push bx |
1368 | push bx |
1369 | mov al, byte [BPB_SecPerClus] ; number of sectors in cluster |
1369 | mov al, byte [BPB_SecPerClus] ; number of sectors in cluster |
1370 | call boot_read_floppy |
1370 | call boot_read_floppy |
1371 | push es |
1371 | push es |
1372 | push ds |
1372 | push ds |
1373 | pop es |
1373 | pop es |
1374 | pusha |
1374 | pusha |
1375 | ; |
1375 | ; |
1376 | mov ax, word [BPB_BytsPerSec] |
1376 | mov ax, word [BPB_BytsPerSec] |
1377 | xor cx, cx |
1377 | xor cx, cx |
1378 | mov cl, byte [BPB_SecPerClus] |
1378 | mov cl, byte [BPB_SecPerClus] |
1379 | mul cx |
1379 | mul cx |
1380 | shr ax, 1 ; ax = (BPB_BytsPerSec * BPB_SecPerClus)/2 |
1380 | shr ax, 1 ; ax = (BPB_BytsPerSec * BPB_SecPerClus)/2 |
1381 | mov cx, ax ; number of words to copy (count words in cluster) |
1381 | mov cx, ax ; number of words to copy (count words in cluster) |
1382 | ; |
1382 | ; |
1383 | mov ah, 0x87 |
1383 | mov ah, 0x87 |
1384 | int 0x15 ; copy data |
1384 | int 0x15 ; copy data |
1385 | test ah, ah |
1385 | test ah, ah |
1386 | popa |
1386 | popa |
1387 | pop es |
1387 | pop es |
1388 | jnz sayerr_floppy |
1388 | jnz sayerr_floppy |
1389 | ; skip cluster di |
1389 | ; skip cluster di |
1390 | .skip: |
1390 | .skip: |
1391 | mov ax, word [BPB_BytsPerSec] |
1391 | mov ax, word [BPB_BytsPerSec] |
1392 | xor cx, cx |
1392 | xor cx, cx |
1393 | mov cl, byte [BPB_SecPerClus] |
1393 | mov cl, byte [BPB_SecPerClus] |
1394 | mul cx |
1394 | mul cx |
1395 | and eax, 0ffffh ; ax - count of bytes in cluster |
1395 | and eax, 0ffffh ; ax - count of bytes in cluster |
1396 | add dword [si+8*3+2], eax |
1396 | add dword [si+8*3+2], eax |
1397 | 1397 | ||
1398 | mov ax, word [end_of_FAT] ; max cluster number |
1398 | mov ax, word [end_of_FAT] ; max cluster number |
1399 | pusha |
1399 | pusha |
1400 | ; draw percentage |
1400 | ; draw percentage |
1401 | ; total clusters: ax |
1401 | ; total clusters: ax |
1402 | ; read clusters: di |
1402 | ; read clusters: di |
1403 | xchg ax, di |
1403 | xchg ax, di |
1404 | mov cx, 100 |
1404 | mov cx, 100 |
1405 | mul cx |
1405 | mul cx |
1406 | div di |
1406 | div di |
1407 | aam |
1407 | aam |
1408 | xchg al, ah |
1408 | xchg al, ah |
1409 | add ax, '00' |
1409 | add ax, '00' |
1410 | mov si, pros |
1410 | mov si, pros |
1411 | cmp [si], ax |
1411 | cmp [si], ax |
1412 | jz @f |
1412 | jz @f |
1413 | mov [si], ax |
1413 | mov [si], ax |
1414 | call printplain |
1414 | call printplain |
1415 | @@: |
1415 | @@: |
1416 | popa |
1416 | popa |
1417 | inc di |
1417 | inc di |
1418 | cmp di, word [end_of_FAT] ; max number of cluster |
1418 | cmp di, word [end_of_FAT] ; max number of cluster |
1419 | jnz .read_loop |
1419 | jnz .read_loop |
1420 | pop bx ; clear stack |
1420 | pop bx ; clear stack |
1421 | 1421 | ||
1422 | ok_sys_on_floppy: |
1422 | ok_sys_on_floppy: |
1423 | mov si, backspace2 |
1423 | mov si, backspace2 |
1424 | call printplain |
1424 | call printplain |
1425 | mov si, okt |
1425 | mov si, okt |
1426 | call printplain |
1426 | call printplain |
1427 | no_sys_on_floppy: |
1427 | no_sys_on_floppy: |
1428 | xor ax, ax ; reset drive |
1428 | xor ax, ax ; reset drive |
1429 | xor dx, dx |
1429 | xor dx, dx |
1430 | int 0x13 |
1430 | int 0x13 |
1431 | mov dx, 0x3f2 ; floppy motor off |
1431 | mov dx, 0x3f2 ; floppy motor off |
1432 | mov al, 0 |
1432 | mov al, 0 |
1433 | out dx, al |
1433 | out dx, al |
1434 | 1434 | ||
1435 | if defined extended_primary_loader |
1435 | if defined extended_primary_loader |
1436 | cmp [boot_dev], 1 |
1436 | cmp [boot_dev], 1 |
1437 | jne no_sys_from_primary |
1437 | jne no_sys_from_primary |
1438 | ; load kolibri.img using callback from primary loader |
1438 | ; load kolibri.img using callback from primary loader |
1439 | and word [movedesc + 24 + 2], 0 |
1439 | and word [movedesc + 24 + 2], 0 |
1440 | mov byte [movedesc + 24 + 4], 10h |
1440 | mov byte [movedesc + 24 + 4], 10h |
1441 | ; read in blocks of 64K until file is fully loaded |
1441 | ; read in blocks of 64K until file is fully loaded |
1442 | mov ax, 1 |
1442 | mov ax, 1 |
1443 | .repeat: |
1443 | .repeat: |
1444 | mov di, image_file_struct |
1444 | mov di, image_file_struct |
1445 | call [bootcallback] |
1445 | call [bootcallback] |
1446 | push cs |
1446 | push cs |
1447 | pop ds |
1447 | pop ds |
1448 | push cs |
1448 | push cs |
1449 | pop es |
1449 | pop es |
1450 | cmp bx, 1 |
1450 | cmp bx, 1 |
1451 | ja sayerr_badsect |
1451 | ja sayerr_badsect |
1452 | push bx |
1452 | push bx |
1453 | mov si, movedesc |
1453 | mov si, movedesc |
1454 | and word [si + 16 + 2], 0 |
1454 | and word [si + 16 + 2], 0 |
1455 | mov byte [si + 16 + 4], 4 |
1455 | mov byte [si + 16 + 4], 4 |
1456 | mov ah, 87h |
1456 | mov ah, 87h |
1457 | mov cx, 8000h |
1457 | mov cx, 8000h |
1458 | int 15h |
1458 | int 15h |
1459 | pop bx |
1459 | pop bx |
1460 | test ah, ah |
1460 | test ah, ah |
1461 | jnz sayerr_memmove |
1461 | jnz sayerr_memmove |
1462 | inc byte [si + 24 + 4] |
1462 | inc byte [si + 24 + 4] |
1463 | test bx, bx |
1463 | test bx, bx |
1464 | jz no_sys_from_primary |
1464 | jz no_sys_from_primary |
1465 | mov ax, 2 |
1465 | mov ax, 2 |
1466 | jmp .repeat |
1466 | jmp .repeat |
1467 | no_sys_from_primary: |
1467 | no_sys_from_primary: |
1468 | end if |
1468 | end if |
1469 | 1469 | ||
1470 | ; SET GRAPHICS |
1470 | ; SET GRAPHICS |
1471 | 1471 | ||
1472 | xor ax, ax |
1472 | xor ax, ax |
1473 | mov es, ax |
1473 | mov es, ax |
1474 | 1474 | ||
1475 | mov ax, [es:BOOT_VESA_MODE] ; vga & 320x200 |
1475 | mov ax, [es:BOOT_VESA_MODE] ; vga & 320x200 |
1476 | mov bx, ax |
1476 | mov bx, ax |
1477 | cmp ax, 0x13 |
1477 | cmp ax, 0x13 |
1478 | je setgr |
1478 | je setgr |
1479 | cmp ax, 0x12 |
1479 | cmp ax, 0x12 |
1480 | je setgr |
1480 | je setgr |
1481 | mov ax, 0x4f02 ; Vesa |
1481 | mov ax, 0x4f02 ; Vesa |
1482 | setgr: |
1482 | setgr: |
1483 | int 0x10 |
1483 | int 0x10 |
1484 | test ah, ah |
1484 | test ah, ah |
1485 | mov si, fatalsel |
1485 | mov si, fatalsel |
1486 | jnz v_mode_error |
1486 | jnz v_mode_error |
1487 | ; set mode 0x12 graphics registers: |
1487 | ; set mode 0x12 graphics registers: |
1488 | cmp bx, 0x12 |
1488 | cmp bx, 0x12 |
1489 | jne gmok2 |
1489 | jne gmok2 |
1490 | 1490 | ||
1491 | mov al, 0x05 |
1491 | mov al, 0x05 |
1492 | mov dx, 0x03ce |
1492 | mov dx, 0x03ce |
1493 | push dx |
1493 | push dx |
1494 | out dx, al ; select GDC mode register |
1494 | out dx, al ; select GDC mode register |
1495 | mov al, 0x02 |
1495 | mov al, 0x02 |
1496 | inc dx |
1496 | inc dx |
1497 | out dx, al ; set write mode 2 |
1497 | out dx, al ; set write mode 2 |
1498 | 1498 | ||
1499 | mov al, 0x02 |
1499 | mov al, 0x02 |
1500 | mov dx, 0x03c4 |
1500 | mov dx, 0x03c4 |
1501 | out dx, al ; select VGA sequencer map mask register |
1501 | out dx, al ; select VGA sequencer map mask register |
1502 | mov al, 0x0f |
1502 | mov al, 0x0f |
1503 | inc dx |
1503 | inc dx |
1504 | out dx, al ; set mask for all planes 0-3 |
1504 | out dx, al ; set mask for all planes 0-3 |
1505 | 1505 | ||
1506 | mov al, 0x08 |
1506 | mov al, 0x08 |
1507 | pop dx |
1507 | pop dx |
1508 | out dx, al ; select GDC bit mask register |
1508 | out dx, al ; select GDC bit mask register |
1509 | ; for writes to 0x03cf |
1509 | ; for writes to 0x03cf |
1510 | gmok2: |
1510 | gmok2: |
1511 | push ds |
1511 | push ds |
1512 | pop es |
1512 | pop es |