Rev 7121 | Rev 7132 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 7121 | Rev 7129 | ||
|---|---|---|---|
| Line 9... | Line 9... | ||
| 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 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 13... | Line 13... | ||
| 13 | 13 | ||
| Line 14... | Line 14... | ||
| 14 | $Revision: 7121 $ |
14 | $Revision: 7129 $ |
| 15 | 15 | ||
| 16 | 16 | ||
| Line 272... | Line 272... | ||
| 272 | ; set up segment registers |
272 | ; set up segment registers |
| 273 | push cs |
273 | push cs |
| 274 | pop ds |
274 | pop ds |
| 275 | else |
275 | else |
| 276 | cld |
276 | cld |
| - | 277 | push 0 |
|
| - | 278 | pop es |
|
| 277 | ; \begin{diamond}[02.12.2005] |
279 | ; \begin{diamond}[02.12.2005] |
| 278 | ; if bootloader sets ax = 'KL', then ds:si points to loader block |
280 | ; if bootloader sets ax = 'KL', then ds:si points to loader block |
| 279 | cmp ax, 'KL' |
281 | cmp ax, 'KL' |
| 280 | jnz @f |
282 | jnz @f |
| 281 | mov word [cs:cfgmanager.loader_block], si |
283 | mov word [cs:cfgmanager.loader_block], si |
| 282 | mov word [cs:cfgmanager.loader_block+2], ds |
284 | mov word [cs:cfgmanager.loader_block+2], ds |
| - | 285 | mov word [es:BOOT_KERNEL_RESTART], kernel_restart_bootblock |
|
| 283 | @@: |
286 | @@: |
| 284 | ; \end{diamond}[02.12.2005] |
287 | ; \end{diamond}[02.12.2005] |
| Line 285... | Line 288... | ||
| 285 | 288 | ||
| 286 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source hard disk |
289 | ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source disk |
| - | 290 | ; (see comment to BOOT_BX_FROM_LOAD and loader_doc.txt) |
|
| 287 | ; (see comment to bx_from_load) |
291 | mov word [es:BOOT_BX_FROM_LOAD], 'r1' ; default value: /rd/1 |
| 288 | cmp cx, 'HA' |
292 | cmp cx, 'HA' |
| 289 | jnz no_hd_load |
293 | jnz no_hd_load |
| 290 | cmp dx, 'RD' |
294 | cmp dx, 'RD' |
| 291 | jnz no_hd_load |
295 | jnz no_hd_load |
| 292 | mov word [cs:bx_from_load], bx ; {SPraid}[13.03.2007] |
296 | mov [es:BOOT_BX_FROM_LOAD], bx |
| Line 293... | Line 297... | ||
| 293 | no_hd_load: |
297 | no_hd_load: |
| 294 | 298 | ||
| 295 | ; set up stack |
299 | ; set up stack |
| Line 964... | Line 968... | ||
| 964 | 968 | ||
| Line 965... | Line 969... | ||
| 965 | ; BOOT DEVICE |
969 | ; BOOT DEVICE |
| 966 | 970 | ||
| 967 | mov al, [preboot_device] |
971 | mov al, [preboot_device] |
| Line 968... | Line 972... | ||
| 968 | dec al |
972 | dec al |
| 969 | mov [boot_dev], al |
973 | mov [es:BOOT_DEV], al |
| Line 970... | Line 974... | ||
| 970 | 974 | ||
| Line 971... | Line 975... | ||
| 971 | ; GET MEMORY MAP |
975 | ; GET MEMORY MAP |
| 972 | include '../detect/biosmem.inc' |
976 | include '../detect/biosmem.inc' |
| 973 | 977 | ||
| 974 | ; READ DISKETTE TO MEMORY |
978 | ; READ DISKETTE TO MEMORY |
| 975 | 979 | ||
| 976 | cmp [boot_dev], 0 |
980 | cmp byte [es:BOOT_DEV], 0 |
| Line 1298... | Line 1302... | ||
| 1298 | mov dx, 0x3f2 ; floppy motor off |
1302 | mov dx, 0x3f2 ; floppy motor off |
| 1299 | mov al, 0 |
1303 | mov al, 0 |
| 1300 | out dx, al |
1304 | out dx, al |
| Line 1301... | Line 1305... | ||
| 1301 | 1305 | ||
| 1302 | if defined extended_primary_loader |
1306 | if defined extended_primary_loader |
| 1303 | cmp [boot_dev], 1 |
1307 | cmp [es:BOOT_DEV], 1 |
| 1304 | jne no_sys_from_primary |
1308 | jne no_sys_from_primary |
| 1305 | ; load kolibri.img using callback from primary loader |
1309 | ; load kolibri.img using callback from primary loader |
| 1306 | and word [movedesc + 24 + 2], 0 |
1310 | and word [movedesc + 24 + 2], 0 |
| 1307 | mov byte [movedesc + 24 + 4], 10h |
1311 | mov byte [movedesc + 24 + 4], 10h |