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Last change
on this file since 254 was 251, checked in by krille_n_@…, 13 years ago |
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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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| [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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