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Last change
on this file since 150 was
150,
checked in by aitotat, 13 years ago
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Changes to XTIDE Universal BIOS:
- Redesigned Disk Parameter Tables.
- Code generalizations for supporting non-IDE devices in the future.
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File size:
1.0 KB
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| Line | |
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| 1 | ; Project name : XTIDE Universal BIOS |
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| 2 | ; Description : Sets IDE Device specific parameters to DPT. |
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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 | ; IdeDPT_Finalize |
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| 9 | ; Parameters: |
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| 10 | ; DS:DI: Ptr to Disk Parameter Table |
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| 11 | ; ES:SI: Ptr to 512-byte ATA information read from the drive |
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| 12 | ; Returns: |
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| 13 | ; Nothing |
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| 14 | ; Corrupts registers: |
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| 15 | ; AX, BX, CX, DX |
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| 16 | ;-------------------------------------------------------------------- |
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| 17 | IdeDPT_Finalize: |
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| 18 | ; Fall to .StoreBlockMode |
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| 19 | |
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| 20 | ;-------------------------------------------------------------------- |
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| 21 | ; .StoreBlockMode |
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| 22 | ; Parameters: |
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| 23 | ; DS:DI: Ptr to Disk Parameter Table |
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| 24 | ; ES:SI: Ptr to 512-byte ATA information read from the drive |
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| 25 | ; Returns: |
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| 26 | ; Nothing |
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| 27 | ; Corrupts registers: |
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| 28 | ; Nothing |
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| 29 | ;-------------------------------------------------------------------- |
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| 30 | .StoreBlockMode: |
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| 31 | mov al, 1 |
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| 32 | mov ah, [es:si+ATA1.bBlckSize] ; Max block size in sectors |
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| 33 | mov [di+DPT_ATA.wSetAndMaxBlock], ax |
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| 34 | ; Fall to .EndDPT |
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| 35 | |
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| 36 | |
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| 37 | .EndDPT: |
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| 38 | ret |
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