source: xtideuniversalbios/trunk/Assembly_Library/Src/Util/Reboot.asm@ 471

Last change on this file since 471 was 376, checked in by gregli@…, 13 years ago

WIDE checkin... Added copyright and license information to sorce files, as per the GPL instructions for usage.

File size: 2.1 KB
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[245]1; Project name : Assembly Library
2; Description : Functions for rebooting computer.
3
[376]4;
5; XTIDE Universal BIOS and Associated Tools
6; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team.
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.
12;
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
16; GNU General Public License for more details.
17; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18;
19
[245]20; Section containing code
21SECTION .text
22
23;--------------------------------------------------------------------
24; Reboot_ComputerWithBootFlagInAX
25; Parameters:
26; AX: Boot Flag
27; Returns:
28; Nothing, function never returns
29;--------------------------------------------------------------------
30Reboot_ComputerWithBootFlagInAX:
[251]31 LOAD_BDA_SEGMENT_TO ds, bx
[245]32 mov [BDA.wBoot], ax ; Store boot flag
33 ; Fall to Reboot_AT
34
35
36;--------------------------------------------------------------------
37; Reboot_AT
38; Parameters:
39; Nothing
40; Returns:
41; Nothing, function never returns
42;--------------------------------------------------------------------
43Reboot_AT:
44 mov al, 0FEh ; System reset (AT+ keyboard controller)
45 out 64h, al ; Reset computer (AT+)
[247]46%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
[323]47 %ifdef INCLUDE_TIME_LIBRARY
48 mov ax, 10
49 call Delay_MicrosecondsFromAX
50 %else
51 JMP_DELAY
52 %endif
[247]53%else
54 JMP_DELAY
55%endif
[245]56 ; Fall to Reboot_XT
57
58
59;--------------------------------------------------------------------
60; Reboot_XT
61; Parameters:
62; Nothing
63; Returns:
64; Nothing, function never returns
65;--------------------------------------------------------------------
66Reboot_XT:
67 xor ax, ax
68 push ax
69 popf ; Clear FLAGS (disables interrupt)
70 mov ds, ax
71 mov es, ax
72 mov ss, ax
[251]73 jmp 0FFFFh:0 ; XT reset
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