| 1 | ; Project name : Assembly Library |
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| 2 | ; Description : Functions for rebooting computer. |
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| 3 | |
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| 4 | ; |
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| 5 | ; XTIDE Universal BIOS and Associated Tools |
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team. |
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| 7 | ; |
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| 8 | ; This program is free software; you can redistribute it and/or modify |
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| 9 | ; it under the terms of the GNU General Public License as published by |
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| 10 | ; the Free Software Foundation; either version 2 of the License, or |
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| 11 | ; (at your option) any later version. |
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| 12 | ; |
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| 13 | ; This program is distributed in the hope that it will be useful, |
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | ; GNU General Public License for more details. |
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| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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| 18 | ; |
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| 19 | |
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| 20 | ; Section containing code |
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| 21 | SECTION .text |
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| 22 | |
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| 23 | ;-------------------------------------------------------------------- |
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| 24 | ; Reboot_ComputerWithBootFlagInAX |
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| 25 | ; Parameters: |
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| 26 | ; AX: Boot Flag |
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| 27 | ; Returns: |
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| 28 | ; Nothing, function never returns |
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| 29 | ;-------------------------------------------------------------------- |
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| 30 | Reboot_ComputerWithBootFlagInAX: |
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| 31 | LOAD_BDA_SEGMENT_TO ds, bx |
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| 32 | mov [BDA.wBoot], ax ; Store boot flag |
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| 33 | ; Fall to Reboot_AT |
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| 34 | |
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| 35 | |
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| 36 | ;-------------------------------------------------------------------- |
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| 37 | ; Reboot_AT |
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| 38 | ; Parameters: |
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| 39 | ; Nothing |
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| 40 | ; Returns: |
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| 41 | ; Nothing, function never returns |
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| 42 | ;-------------------------------------------------------------------- |
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| 43 | Reboot_AT: |
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| 44 | mov al, 0FEh ; System reset (AT+ keyboard controller) |
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| 45 | out 64h, al ; Reset computer (AT+) |
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| 46 | %ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS |
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| 47 | %ifdef INCLUDE_TIME_LIBRARY |
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| 48 | mov ax, 10 |
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| 49 | call Delay_MicrosecondsFromAX |
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| 50 | %else |
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| 51 | JMP_DELAY |
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| 52 | %endif |
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| 53 | %else |
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| 54 | JMP_DELAY |
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| 55 | %endif |
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| 56 | ; Fall to Reboot_XT |
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| 57 | |
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| 58 | |
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| 59 | ;-------------------------------------------------------------------- |
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| 60 | ; Reboot_XT |
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| 61 | ; Parameters: |
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| 62 | ; Nothing |
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| 63 | ; Returns: |
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| 64 | ; Nothing, function never returns |
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| 65 | ;-------------------------------------------------------------------- |
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| 66 | Reboot_XT: |
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| 67 | xor ax, ax |
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| 68 | push ax |
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| 69 | popf ; Clear FLAGS (disables interrupt) |
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| 70 | mov ds, ax |
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| 71 | mov es, ax |
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| 72 | mov ss, ax |
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| 73 | jmp 0FFFFh:0 ; XT reset |
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