Last change
on this file since 245 was
245,
checked in by aitotat@…, 12 years ago
|
Changes to Assembly Library:
- Added functions to reboot computer.
- Added JMP_DELAY macro.
|
File size:
1.3 KB
|
Rev | Line | |
---|
[245] | 1 | ; Project name : Assembly Library |
---|
| 2 | ; Description : Functions for rebooting computer. |
---|
| 3 | |
---|
| 4 | ; Section containing code |
---|
| 5 | SECTION .text |
---|
| 6 | |
---|
| 7 | ;-------------------------------------------------------------------- |
---|
| 8 | ; Reboot_ComputerWithBootFlagInAX |
---|
| 9 | ; Parameters: |
---|
| 10 | ; AX: Boot Flag |
---|
| 11 | ; Returns: |
---|
| 12 | ; Nothing, function never returns |
---|
| 13 | ;-------------------------------------------------------------------- |
---|
| 14 | Reboot_ComputerWithBootFlagInAX: |
---|
| 15 | LOAD_BDA_SEGMENT_TO dx, bx |
---|
| 16 | mov [BDA.wBoot], ax ; Store boot flag |
---|
| 17 | ; Fall to Reboot_AT |
---|
| 18 | |
---|
| 19 | |
---|
| 20 | ;-------------------------------------------------------------------- |
---|
| 21 | ; Reboot_AT |
---|
| 22 | ; Parameters: |
---|
| 23 | ; Nothing |
---|
| 24 | ; Returns: |
---|
| 25 | ; Nothing, function never returns |
---|
| 26 | ;-------------------------------------------------------------------- |
---|
| 27 | Reboot_AT: |
---|
| 28 | mov al, 0FEh ; System reset (AT+ keyboard controller) |
---|
| 29 | out 64h, al ; Reset computer (AT+) |
---|
| 30 | mov al, 10 |
---|
| 31 | call Delay_MicrosecondsFromAX |
---|
| 32 | ; Fall to Reboot_XT |
---|
| 33 | |
---|
| 34 | |
---|
| 35 | ;-------------------------------------------------------------------- |
---|
| 36 | ; Reboot_XT |
---|
| 37 | ; Parameters: |
---|
| 38 | ; Nothing |
---|
| 39 | ; Returns: |
---|
| 40 | ; Nothing, function never returns |
---|
| 41 | ;-------------------------------------------------------------------- |
---|
| 42 | Reboot_XT: |
---|
| 43 | xor ax, ax |
---|
| 44 | push ax |
---|
| 45 | popf ; Clear FLAGS (disables interrupt) |
---|
| 46 | mov ds, ax |
---|
| 47 | mov es, ax |
---|
| 48 | mov ss, ax |
---|
| 49 | jmp WORD 0FFFFh:0h ; XT reset |
---|
Note: See
TracBrowser
for help on using the repository browser.