| 1 | ; File name : AH5h_HFormat.asm
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| 2 | ; Project name : IDE BIOS
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| 3 | ; Created date : 2.11.2007
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| 4 | ; Last update : 12.4.2010
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| 5 | ; Author : Tomi Tilli
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| 6 | ; Description : Int 13h function AH=5h, Format Disk Track.
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| 7 |
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| 8 | ; Section containing code
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| 9 | SECTION .text
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| 10 |
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| 11 | ;--------------------------------------------------------------------
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| 12 | ; Int 13h function AH=5h, Format Disk Track.
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| 13 | ;
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| 14 | ; AH5h_HandlerForFormatDiskTrack
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| 15 | ; Parameters:
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| 16 | ; AH: Bios function 5h
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| 17 | ; CH: Cylinder number, bits 7...0
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| 18 | ; CL: Bits 7...6: Cylinder number bits 9 and 8
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| 19 | ; Bits 5...0: Starting sector number (1...63)
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| 20 | ; DH: Starting head number (0...255)
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| 21 | ; DL: Drive number
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| 22 | ; ES:BX: Pointer to address table
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| 23 | ; Parameters loaded by Int13h_Jump:
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| 24 | ; DS: RAMVARS segment
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| 25 | ; Returns:
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| 26 | ; AH: Int 13h/40h floppy return status
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| 27 | ; CF: 0 if successfull, 1 if error
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| 28 | ; IF: 1
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| 29 | ; Corrupts registers:
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| 30 | ; Flags
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| 31 | ;--------------------------------------------------------------------
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| 32 | ALIGN JUMP_ALIGN
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| 33 | AH5h_HandlerForFormatDiskTrack:
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| 34 | push dx
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| 35 | push cx
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| 36 | push bx
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| 37 | push ax
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| 38 |
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| 39 | ; Format command is vendor specific on IDE drives.
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| 40 | ; Let's do verify instead.
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| 41 | call FindDPT_ForDriveNumber ; DS:DI now points to DPT
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| 42 | mov al, [di+DPT.bPSect] ; Load Sectors per Track to AL
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| 43 | call AH4h_VerifySectors
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| 44 | jmp Int13h_PopXRegsAndReturn
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