Code (hex) | Name | Description |
25 | Reserved |
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26 | Reserved |
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27 | KBC final Init | Final Initial KBC and setup BIOS data area |
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28 | Reserved |
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29 | Initialize Video Interface | Read CMOS location 14h to find out type of video in use. Detect |
|
| and Initialize Video Adapter. |
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2A | Reserved |
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2B | Reserved |
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2C | Reserved |
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2D | Video memory test | Test video memory, write |
|
| shadow RAM - Enable shadow according to Setup. |
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2E | Reserved |
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2F | Reserved |
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30 | Reserved |
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31 | Reserved |
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32 | Reserved |
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33 | PS2 Mouse setup | Setup PS2 Mouse and reset KB |
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34 | Reserved |
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35 | Test DMA Controller 0 | Test DMA Controller 0 |
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36 | Reserved |
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37 | Test DMA Controller 1 | Test DMA Controller 1 |
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38 | Reserved |
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39 | Test DMA Page | Test DMA Page Registers. |
| Registers |
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3A | Reserved |
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3B | Reserved |
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3C | Test Timer Counter 2 | Test 8254 Timer 0 Counter 2. |
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3D | Reserved |
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3E | Test | Verify 8259 Channel 1 masked interrupts by alternately turning off |
|
| and on the interrupt lines. |
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3F | Reserved |
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40 | Test | Verify 8259 Channel 2 masked interrupts by alternately turning off |
|
| and on the interrupt lines. |
|
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41 | Reserved |
|
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42 | Reserved |
|
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84