Last change
on this file since 306 was 294, checked in by krille_n_@…, 13 years ago |
Commit 2/2 (BIOS):
- Fixed a bug in AH1h_HStatus.asm.
- Minor optimizations.
- Fixed spelling and did some cleaning.
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File size:
1.2 KB
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1 | ; Project name : XTIDE Universal BIOS
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2 | ; Description : Int 13h function AH=1h, Read Disk Status.
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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 | ; Int 13h function AH=1h, Read Disk Status.
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9 | ;
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10 | ; AH1h_HandlerForReadDiskStatus
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11 | ; Parameters:
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12 | ; DL: Translated Drive number
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13 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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14 | ; SS:BP: Ptr to IDEREGS_AND_INTPACK
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15 | ; Returns with INTPACK:
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16 | ; AH: Int 13h floppy return status
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17 | ; CF: 0 if AH = RET_HD_SUCCESS, 1 otherwise (error)
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18 | ;--------------------------------------------------------------------
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19 | ALIGN JUMP_ALIGN
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20 | AH1h_HandlerForReadDiskStatus:
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21 | LOAD_BDA_SEGMENT_TO ds, ax, !
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22 |
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23 | %ifdef MODULE_SERIAL_FLOPPY
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24 | test dl, dl
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25 | js .HardDisk
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26 | mov ah, [BDA.bFDRetST] ; Unlike for hard disks below, floppy version does not clear the status
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27 | jmp .done
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28 | .HardDisk:
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29 | %endif
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30 |
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31 | xchg ah, [BDA.bHDLastSt] ; Load and clear last error (AH is cleared with the LOAD_BDA_SEGMENT_TO above)
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32 |
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33 | .done:
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34 | %ifndef USE_186
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35 | call Int13h_SetErrorCodeToIntpackInSSBPfromAH
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36 | jmp Int13h_ReturnFromHandlerWithoutStoringErrorCode
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37 | %else
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38 | push Int13h_ReturnFromHandlerWithoutStoringErrorCode
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39 | jmp Int13h_SetErrorCodeToIntpackInSSBPfromAH
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40 | %endif
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