Last change
on this file since 251 was
251,
checked in by krille_n_@…, 12 years ago
|
Changes:
- Simplified the bug fix I did in r242.
- Fixed a couple of new bugs in Reboot.asm
|
File size:
1.4 KB
|
Rev | Line | |
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[245] | 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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[251] | 15 | LOAD_BDA_SEGMENT_TO ds, bx |
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[245] | 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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[247] | 30 | %ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS |
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[251] | 31 | mov ax, 10 |
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[245] | 32 | call Delay_MicrosecondsFromAX |
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[247] | 33 | %else |
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| 34 | JMP_DELAY |
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| 35 | %endif |
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[245] | 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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[251] | 53 | jmp 0FFFFh:0 ; XT reset |
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