Changeset 589 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h


Ignore:
Timestamp:
May 22, 2016, 12:26:57 PM (9 years ago)
Author:
Krister Nordvall
Message:

Changes:

  • BIOS: Fixed a purely cosmetic bug from r542 where, in builds containing MODULE_EBIOS, the boot menu would display an incorrect drive size (0.4 kB with MODULE_STRINGS_COMPRESSED or 0.5 kB without) for old drives with no support for LBA.
  • Fixed a bug from r392 where Vision_DetectAndReturnIDinAXandPortInDXifControllerPresent would return the ID in AL instead of AH (if DANGEROUS_DETECTION had been defined).
  • Fixed a bug from r587 in AdvAtaInit.asm that would prevent detection of QDI Vision controllers.
  • Also changed how the QDI Vision IDs are defined (removed the need for shifting) to avoid confusion. This fixed a potential bug from r587 in AdvAtaInit.asm where some IDs were not being shifted.
  • Fixed a bug in PDC20x30.asm from r587 where GetPdcIDtoAX would not return with the IDE base port in DX so DisablePdcProgrammingMode would fail.
  • Made some changes to ModuleDependency.inc and other files so that MODULE_ADVANCED_ATA now requires USE_386. Consequently it is no longer included in the regular AT-builds, only in the 386_8k-build.
  • Moved the UNROLL_SECTORS_IN_CX_TO_xWORDS macros from IDE_8bit.inc to IdeIO.inc which means it's now possible to build a BIOS without MODULE_8BIT_IDE.
  • XTIDECFG: Added a minimum DOS version check (since it needs DOS version 2+) to allow the program to quit gracefully in the unlikely scenario where someone tries to run it under DOS version 1.
  • Made some changes to Drive.asm to improve drive enumeration. The old method using GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE worked well in Windows XP but not in Windows 98 SE (in Windows or in DOS mode). The two problems were; 1) The function call would access the drives which on single floppy drive systems would cause Windows to swap between A: and B: (throwing a blue screen asking the user to insert a disk etc). 2) Only floppy drives and FAT16 drives would be available in the list of drives, no FAT32/optical/network drives.
  • Improved code in IdeControllerMenu.asm so that the default port addresses for all IDE interfaces are now restored when (re-)selecting the (same) type of IDE device.
  • Also made it impossible to select a device type unless the required module is included in the loaded BIOS.
  • The version check done when loading a BIOS now uses the FLASH_SIGNATURE definition from Version.inc. Any changes affecting RomVars now only requires updating that definition. This means that changes to RomVars must be implemented in both the BIOS and XTIDECFG before being committed to the repository.
  • Added a compatibility fix for 3Com 3C503 cards to the ROM checksumming code in Buffers.asm (Buffers_GenerateChecksum).
  • SerDrive: Made some minor changes to file names and paths to improve compatibility with case sensitive environments.
  • BIOSDRVS: Made a minor size optimization which as a side effect also makes it compatible with all DOS versions including DOS version 1.
  • Library: Renamed the WAIT_RETRACE_IF_NECESSARY_THEN macro to CALL_WAIT_FOR_RETRACE_IF_NECESSARY_THEN and made a tail-call-optimized version of it (JMP_WAIT_FOR_RETRACE_IF_NECESSARY_THEN).
  • A speed optimization to the eRCL_IM macro for 386 and higher. This change breaks emulation in the sense that the macro will fail when given a memory operand as the first parameter.
  • Other minor optimizations and fixes.
Location:
trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h
Files:
6 edited

Legend:

Unmodified
Added
Removed

  • trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH1Eh_XTCF.asm

    r588 r589  
    152152
    153153
    154 %if 0
    155     ; We always need to enable 8-bit mode since 16-bit mode is restored
    156     ; when controller is reset (AH=00h or 0Dh)
    157     ePUSH_T bx, AH23h_Enable8bitPioMode
    158 
    159     ; Convert mode to device type (see XTCF.inc for full details)
    160     and     ax, 3
    161     jz      SHORT .Set8bitPioMode   ; XTCF_8BIT_PIO_MODE = 0
    162     dec     ax                      ; XTCF_8BIT_PIO_MODE_WITH_BIU_OFFLOAD = 1
    163     jz      SHORT .Set8bitPioModeWithBIUOffload
    164     dec     ax                      ; XTCF_16BIT_PIO_WITH_BIU_OFFLOAD = 2
    165     jz      SHORT .Set16bitPioModeWithBIUOffload
    166 
    167     ; XTCF_DMA_MODE = 3
    168     mov     BYTE [di+DPT_ATA.bDevice], DEVICE_8BIT_XTCF_DMA
    169 
    170     ; DMA transfers have limited block size
    171     mov     al, [di+DPT_ATA.bBlockSize]
    172     cmp     al, XTCF_DMA_MODE_MAX_BLOCK_SIZE
    173     jbe     SHORT AH24h_SetBlockSize
    174     mov     al, XTCF_DMA_MODE_MAX_BLOCK_SIZE
    175     jmp     SHORT AH24h_SetBlockSize
    176 
    177 .Set16bitPioModeWithBIUOffload:
    178     pop     bx                              ; Do not enable 8-bit PIO...
    179     ePUSH_T bx, AH23h_Disable8bitPioMode    ; ...disable it instead
    180     mov     al, DEVICE_8BIT_XTCF_PIO16_WITH_BIU_OFFLOAD
    181     SKIP2B  bx
    182 
    183 .Set8bitPioMode:
    184     mov     al, DEVICE_8BIT_XTCF_PIO8
    185     SKIP2B  bx
    186 
    187 .Set8bitPioModeWithBIUOffload:
    188     mov     al, DEVICE_8BIT_XTCF_PIO8_WITH_BIU_OFFLOAD
    189     mov     [di+DPT_ATA.bDevice], al
    190     ret
    191 %endif ; 0
    192 
    193 
    194154;--------------------------------------------------------------------
    195155; AH1Eh_GetCurrentXTCFmodeToAX
    … …  
    197157;       DS:DI:  Ptr to DPT (in RAMVARS segment)
    198158;   Returns:
    199 ;       AX:     XT-CF mode (XTCF_8BIT_PIO_MODE, XTCF_8BIT_PIO_MODE_WITH_BIU_OFFLOAD, XTCF_16BIT_PIO_WITH_BIU_OFFLOAD or XTCF_DMA_MODE)
     159;       AX:     XT-CF mode (see XTCF.inc)
    200160;       CF:     Clear
    201161;   Corrupts registers:
    … …  
    208168    ret
    209169
    210 %if 0
    211     mov     al, [di+DPT_ATA.bDevice]
    212     shr     al, 1
    213     cbw
    214     sub     al, XTCF_DEVICE_OFFSET >> 1
    215     ret
    216 %endif ; 0

  • trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH23h_HFeatures.asm

    r584 r589  
    9292    mov     si, FEATURE_ENABLE_8BIT_PIO_TRANSFER_MODE
    9393    jmp     SHORT AH23h_SetControllerFeatures
     94
     95%ifdef MODULE_8BIT_IDE_ADVANCED
    9496AH23h_Disable8bitPioMode:
    9597    mov     si, FEATURE_DISABLE_8BIT_PIO_TRANSFER_MODE
    … …  
    9799    xor     ah, ah          ; Clear error since modern drives might not understand the command and are
    98100    ret                     ; always in 16-bit mode anyway
    99 %endif
     101%endif ; MODULE_8BIT_IDE_ADVANCED
     102%endif ; MODULE_8BIT_IDE

  • trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH2h_HRead.asm

    r526 r589  
    4040;       AH:     Int 13h/40h floppy return status
    4141;       AL:     Burst error length if AH returns 11h (we never return error code 11h)
    42 ;               Number of sectors actually read (only valid if CF set for someBIOSes)
     42;               Number of sectors actually read (only valid if CF set for some BIOSes)
    4343;       CF:     0 if successful, 1 if error
    4444;--------------------------------------------------------------------

  • trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH3h_HWrite.asm

    r526 r589  
    3939;   Returns with INTPACK:
    4040;       AH:     Int 13h/40h floppy return status
    41 ;       AL:     Number of sectors actually written (only valid if CF set for someBIOSes)
     41;       AL:     Number of sectors actually written (only valid if CF set for some BIOSes)
    4242;       CF:     0 if successful, 1 if error
    4343;--------------------------------------------------------------------

  • trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH9h_HInit.asm

    r588 r589  
    184184
    185185    ; Advanced PIO mode 3 and above
    186     mov     dl, [di+DPT_ADVANCED_ATA.bPioMode]
    187     or      dl, PIO_FLOW_CONTROL_MODE_xxx
     186    mov     dl, PIO_FLOW_CONTROL_MODE_xxx
     187    or      dl, [di+DPT_ADVANCED_ATA.bPioMode]
    188188
    189189.IordyNotSupported:

  • trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Tools/Address.asm

    r568 r589  
    174174    ; +=sectToSeek-1 (24-bit result)
    175175    ; Max = 16,450,497 + 63 - 1 = 16,450,559 = FB03FFh
    176     xor     bh, bh                  ; Sector number now in BX
     176    mov     bh, ch                  ; Sector number now in BX, CH=zero
    177177    dec     bx                      ; sectToSeek-=1
    178     add     ax, bx                  ; Add to loword
    179     adc     dl, bh                  ; Add possible carry to byte2, BH=zero
    180 
    181     ; Copy DX:AX to proper return registers
    182     xchg    bx, ax                  ; BL = Sector Number Register (LBA 7...0)
    183     mov     cl, bh                  ; Low Cylinder Register (LBA 15...8)
    184     mov     ch, dl                  ; High Cylinder Register (LBA 23...16)
    185     mov     bh, dh                  ; Drive and Head Register (LBA 27...24)
     178    add     bx, ax                  ; Add loword to BX (BL = Sector Number Register (LBA 7...0))
     179    adc     ch, dl                  ; Add possible carry to byte2 (CH = High Cylinder Register (LBA 23...16))
     180    mov     cl, bh                  ; CL = Low Cylinder Register (LBA 15...8)
     181    mov     bh, dh                  ; BH = Drive and Head Register (LBA 27...24)
    186182    ret
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