[392] | 1 | ; Project name : XTIDE Universal BIOS |
---|
| 2 | ; Description : Functions for accessings BOOTVARS. |
---|
| 3 | |
---|
| 4 | ; |
---|
[491] | 5 | ; XTIDE Universal BIOS and Associated Tools |
---|
[526] | 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team. |
---|
[392] | 7 | ; |
---|
| 8 | ; This program is free software; you can redistribute it and/or modify |
---|
| 9 | ; it under the terms of the GNU General Public License as published by |
---|
| 10 | ; the Free Software Foundation; either version 2 of the License, or |
---|
| 11 | ; (at your option) any later version. |
---|
[491] | 12 | ; |
---|
[392] | 13 | ; This program is distributed in the hope that it will be useful, |
---|
| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
[491] | 16 | ; GNU General Public License for more details. |
---|
[392] | 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
---|
[491] | 18 | ; |
---|
[392] | 19 | |
---|
| 20 | ; Section containing code |
---|
| 21 | SECTION .text |
---|
| 22 | |
---|
| 23 | ;-------------------------------------------------------------------- |
---|
| 24 | ; BootVars_Initialize |
---|
| 25 | ; Parameters: |
---|
| 26 | ; DS: RAMVARS Segment |
---|
| 27 | ; ES: BDA Segment |
---|
| 28 | ; Returns: |
---|
| 29 | ; Nothing |
---|
| 30 | ; Corrupts registers: |
---|
| 31 | ; AX, CX, DX, DI |
---|
| 32 | ;-------------------------------------------------------------------- |
---|
| 33 | BootVars_Initialize: |
---|
[493] | 34 | %ifdef MODULE_8BIT_IDE_ADVANCED |
---|
[491] | 35 | mov WORD [es:BOOTVARS.wNextXTCFportToScan], XTCF_BASE_PORT_DETECTION_SEED |
---|
[473] | 36 | %endif |
---|
| 37 | |
---|
[524] | 38 | ; Clear all DRVDETECTINFO structs to zero |
---|
[397] | 39 | mov al, DRVDETECTINFO_size |
---|
[392] | 40 | mul BYTE [cs:ROMVARS.bIdeCnt] |
---|
[524] | 41 | mov di, BOOTVARS.rgDrvDetectInfo ; We must not initialize anything before this! |
---|
[392] | 42 | xchg cx, ax |
---|
[528] | 43 | %ifndef MODULE_HOTKEYS |
---|
| 44 | jmp Memory_ZeroESDIwithSizeInCX |
---|
[395] | 45 | |
---|
[528] | 46 | %else ; if MODULE_HOTKEYS |
---|
[392] | 47 | call Memory_ZeroESDIwithSizeInCX |
---|
| 48 | |
---|
[524] | 49 | ; Initialize HOTKEYVARS by storing default drives to boot from |
---|
[528] | 50 | call BootVars_StoreDefaultDriveLettersToHotkeyVars |
---|
[395] | 51 | mov dl, [cs:ROMVARS.bBootDrv] |
---|
[528] | 52 | jmp HotkeyBar_StoreHotkeyToBootvarsForDriveNumberInDL |
---|
[392] | 53 | |
---|
[528] | 54 | |
---|
| 55 | ;-------------------------------------------------------------------- |
---|
| 56 | ; BootVars_StoreDefaultDriveLettersToHotkeyVars |
---|
| 57 | ; Parameters: |
---|
| 58 | ; ES: BDA Segment |
---|
| 59 | ; Returns: |
---|
| 60 | ; Nothing |
---|
| 61 | ; Corrupts registers: |
---|
| 62 | ; Nothing |
---|
| 63 | ;-------------------------------------------------------------------- |
---|
| 64 | BootVars_StoreDefaultDriveLettersToHotkeyVars: |
---|
| 65 | mov WORD [es:BOOTVARS.hotkeyVars+HOTKEYVARS.wFddAndHddLetters], DEFAULT_FLOPPY_DRIVE_LETTER | (DEFAULT_HARD_DRIVE_LETTER<<8) |
---|
| 66 | ret |
---|
| 67 | |
---|
[395] | 68 | %endif ; MODULE_HOTKEYS |
---|