| Code |
| Beeps | POST Routine Description |
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|
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E9h |
|
|
| Initialize Multi Processor |
EAh |
|
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| Initialize OEM special code |
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|
EBh |
|
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| Initialize PIC and DMA |
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|
ECh |
|
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| Initialize Memory type |
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|
EDh |
|
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| Initialize Memory size |
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|
EEh |
|
|
| Shadow Boot Block |
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|
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|
EFh |
|
|
| System memory test |
|
|
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|
|
F0h |
|
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| Initialize interrupt vectors |
|
|
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|
F1h |
|
|
| Initialize Run Time Clock |
|
|
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|
F2h |
|
|
| Initialize video |
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|
|
|
|
F3h |
|
|
| Initialize System Management Mode |
|
|
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|
|
F4h |
| 1 |
| Output one beep |
|
|
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|
|
F5h |
|
|
| Clear Huge Segment |
|
|
|
|
|
F6h |
|
|
| Boot to Mini DOS |
|
|
|
|
|
F7h |
|
|
| Boot to Full DOS |
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|
|
Chapter 4 | 82 |