| 1 | ; Project name : XTIDE Universal BIOS
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| 2 | ; Description : Int 13h function AH=3h, Write Disk Sectors.
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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=3h, Write Disk Sectors.
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| 9 | ;
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| 10 | ; AH3h_HandlerForWriteDiskSectors
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| 11 | ; Parameters:
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| 12 | ; AL, CX, DH, ES: Same as in INTPACK
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| 13 | ; DL: Translated Drive number
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| 14 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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| 15 | ; SS:BP: Ptr to IDEREGS_AND_INTPACK
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| 16 | ; Parameters on INTPACK:
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| 17 | ; AL: Number of sectors to write
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| 18 | ; CH: Cylinder number, bits 7...0
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| 19 | ; CL: Bits 7...6: Cylinder number bits 9 and 8
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| 20 | ; Bits 5...0: Starting sector number (1...63)
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| 21 | ; DH: Starting head number (0...255)
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| 22 | ; ES:BX: Pointer to source data
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| 23 | ; Returns with INTPACK:
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| 24 | ; AH: Int 13h/40h floppy return status
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| 25 | ; CF: 0 if successfull, 1 if error
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| 26 | ;--------------------------------------------------------------------
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| 27 | ALIGN JUMP_ALIGN
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| 28 | AH3h_HandlerForWriteDiskSectors:
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| 29 | cmp BYTE [bp+IDEPACK.intpack+INTPACK.al], 0
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| 30 | je SHORT AH2h_ExitInt13hSinceSectorCountInIntpackIsZero
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| 31 |
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| 32 | mov ah, COMMAND_WRITE_SECTORS ; Load sector mode command
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| 33 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_BLOCK_MODE_SUPPORTED
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| 34 | eCMOVNZ ah, COMMAND_WRITE_MULTIPLE ; Load block mode command
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| 35 | mov bx, TIMEOUT_AND_STATUS_TO_WAIT(TIMEOUT_DRQ, FLG_STATUS_DRQ)
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| 36 | mov si, [bp+IDEPACK.intpack+INTPACK.bx]
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| 37 | %ifdef USE_186
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| 38 | push Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
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| 39 | jmp Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH
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| 40 | %else
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| 41 | call Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH
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| 42 | jmp Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
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| 43 | %endif
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