Last change
on this file since 257 was 251, checked in by krille_n_@…, 13 years ago |
Changes:
- Simplified the bug fix I did in r242.
- Fixed a couple of new bugs in Reboot.asm
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File size:
1.4 KB
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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 | ; Section containing code
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5 | SECTION .text
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6 |
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7 | ;--------------------------------------------------------------------
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8 | ; Reboot_ComputerWithBootFlagInAX
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9 | ; Parameters:
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10 | ; AX: Boot Flag
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11 | ; Returns:
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12 | ; Nothing, function never returns
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13 | ;--------------------------------------------------------------------
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14 | Reboot_ComputerWithBootFlagInAX:
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15 | LOAD_BDA_SEGMENT_TO ds, bx
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16 | mov [BDA.wBoot], ax ; Store boot flag
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17 | ; Fall to Reboot_AT
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18 |
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19 |
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20 | ;--------------------------------------------------------------------
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21 | ; Reboot_AT
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22 | ; Parameters:
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23 | ; Nothing
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24 | ; Returns:
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25 | ; Nothing, function never returns
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26 | ;--------------------------------------------------------------------
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27 | Reboot_AT:
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28 | mov al, 0FEh ; System reset (AT+ keyboard controller)
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29 | out 64h, al ; Reset computer (AT+)
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30 | %ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
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31 | mov ax, 10
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32 | call Delay_MicrosecondsFromAX
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33 | %else
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34 | JMP_DELAY
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35 | %endif
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36 | ; Fall to Reboot_XT
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37 |
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38 |
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39 | ;--------------------------------------------------------------------
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40 | ; Reboot_XT
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41 | ; Parameters:
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42 | ; Nothing
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43 | ; Returns:
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44 | ; Nothing, function never returns
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45 | ;--------------------------------------------------------------------
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46 | Reboot_XT:
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47 | xor ax, ax
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48 | push ax
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49 | popf ; Clear FLAGS (disables interrupt)
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50 | mov ds, ax
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51 | mov es, ax
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52 | mov ss, ax
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53 | jmp 0FFFFh:0 ; XT reset
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