source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH4h_HVerify.asm@ 277

Last change on this file since 277 was 249, checked in by aitotat@…, 12 years ago

Changes to XTIDE Universal BIOS:

  • Number of successfully transferred sectors is now returned by all transfer functions (instead of requested sector count).
  • Added INT 19h handler for proper reboot.
File size: 1.5 KB
RevLine 
[148]1; Project name : XTIDE Universal BIOS
[3]2; Description : Int 13h function AH=4h, Verify Disk Sectors.
3
4; Section containing code
5SECTION .text
6
7;--------------------------------------------------------------------
8; Int 13h function AH=4h, Verify Disk Sectors.
9;
10; AH4h_HandlerForVerifyDiskSectors
11; Parameters:
[148]12; AL, CX, DH: Same as in INTPACK
13; DL: Translated Drive number
14; DS:DI: Ptr to DPT (in RAMVARS segment)
15; SS:BP: Ptr to INTPACK
16; Parameters on INTPACK in SS:BP:
[221]17; AL: Number of sectors to verify (1...128)
[3]18; CH: Cylinder number, bits 7...0
19; CL: Bits 7...6: Cylinder number bits 9 and 8
20; Bits 5...0: Starting sector number (1...63)
21; DH: Starting head number (0...255)
[148]22; Returns with INTPACK in SS:BP:
[3]23; AH: Int 13h/40h floppy return status
[249]24; AL: Number of sectors actually verified (only valid if CF set for someBIOSes)
[3]25; CF: 0 if successfull, 1 if error
26;--------------------------------------------------------------------
27ALIGN JUMP_ALIGN
28AH4h_HandlerForVerifyDiskSectors:
[221]29 call Prepare_ByValidatingSectorsInALforOldInt13h
[155]30 mov ah, COMMAND_VERIFY_SECTORS
[150]31 mov bx, TIMEOUT_AND_STATUS_TO_WAIT(TIMEOUT_DRQ, FLG_STATUS_DRDY)
32%ifdef USE_186
[249]33 push Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAHandTransferredSectorsFromCL
[150]34 jmp Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH
35%else
36 call Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH
[249]37 jmp Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAHandTransferredSectorsFromCL
[150]38%endif
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