| 93,6 → 93,14 |
|---|
| mov [variable_to_set], al |
| } |
| |
| clear_status_field: |
| mov si, space_msg |
| mov byte [si+80], 0 |
| _setcursor 16,0 |
| call printplain |
| _setcursor 16,0 |
| ret |
| |
| boot_read_floppy: |
| push si |
| xor si, si |
| 276,7 → 284,6 |
|---|
| cld |
| push 0 |
| pop es |
| ; \begin{diamond}[02.12.2005] |
| ; if bootloader sets ax = 'KL', then ds:si points to loader block |
| cmp ax, 'KL' |
| jnz @f |
| 284,8 → 291,6 |
|---|
| mov word [cs:cfgmanager.loader_block+2], ds |
| mov word [es:BOOT_LO.kernel_restart], kernel_restart_bootblock |
| @@: |
| ; \end{diamond}[02.12.2005] |
| |
| ; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source disk |
| ; (see comment to BOOT_LO.sys_disk and loader_doc.txt) |
| mov word [es:BOOT_LO.sys_disk], 'r1' ; default value: /rd/1 |
| 420,7 → 425,6 |
|---|
| loopz @b |
| in al, 0x60 |
| |
| ;;;/diamond today 5.02.2008 |
| ; set keyboard typematic rate & delay |
| mov al, 0xf3 |
| out 0x60, al |
| 494,7 → 498,6 |
|---|
| call calc_vmodes_table |
| call check_first_parm ;check and enable cursor_pos |
| |
| ; \begin{diamond}[30.11.2005] |
| cfgmanager: |
| ; settings: |
| ; a) preboot_graph = graphical mode |
| 937,14 → 940,24 |
|---|
| .cont: |
| push cs |
| pop ds |
| mov si, space_msg |
| mov byte [si+80], 0 |
| _setcursor 16,0 |
| call printplain |
| _setcursor 16,0 |
| |
| push es |
| les bx, [.loader_block] |
| cmp byte [es:bx+7], 0 ; get write error flag |
| pop es |
| jz .load |
| call clear_status_field |
| mov si, write_err_msg |
| call print |
| .wait_any_key: |
| xor ax, ax |
| int 16h |
| test ax, ax |
| jz .wait_any_key |
| |
| .load: |
| call clear_status_field |
| end if |
| ; \end{diamond}[02.12.2005] |
| |
| ; ASK GRAPHICS MODE |
| |
| 999,30 → 1012,31 |
|---|
| mov si, diskload |
| call print |
| xor ax, ax ; reset drive |
| xor dx, dx |
| xor dx, dx ; 1st floppy disk (0) |
| int 0x13 |
| ; do we boot from CD-ROM? |
| mov ah, 41h |
| mov bx, 55AAh |
| xor dx, dx |
| mov ah, 41h ; check extended mode |
| mov bx, 55AAh ; test 2 bytes to check that this function is supported |
| xor dx, dx ; 1st floppy disk (0) |
| int 0x13 |
| jc .nocd |
| jc .nocd ; extended mode not supported |
| cmp bx, 0AA55h |
| jnz .nocd |
| mov ah, 48h |
| jnz .nocd ; extended mode not supported |
| mov ah, 48h ; extended read drive parameters |
| push ds |
| push es |
| pop ds |
| mov si, 0xa000 |
| mov word [si], 30 |
| mov word [si], 30 ; size of result buffer |
| int 0x13 |
| pop ds |
| jc .nocd |
| jc .nocd ; error getting parameters |
| push ds |
| lds si, [es:si+26] |
| test byte [ds:si+10], 40h |
| lds si, [es:si+26] ; pointer to Enhanced Disk Drive (EDD) configuration parameters |
| test byte [ds:si+10], 40h ; check ATAPI device |
| pop ds |
| jz .nocd |
| |
| ; yes - read all floppy by 18 sectors |
| |
| ; TODO: !!!! read only first sector and set variables !!!!! |