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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