Changeset 589 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS_Configurator_v2


Ignore:
Timestamp:
May 22, 2016, 12:26:57 PM (8 years ago)
Author:
krille_n_
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_Configurator_v2/Src
Files:
10 edited

Legend:

Unmodified
Added
Removed
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/BiosFile.asm

    r526 r589  
    7575
    7676    cmp     dx, MAX_EEPROM_SIZE_IN_BYTES >> 16
     77    jb      SHORT .FileNotTooBig
    7778    ja      SHORT .FileTooBig
    78     jb      SHORT .FileNotTooBig
    7979    cmp     ax, MAX_EEPROM_SIZE_IN_BYTES & 0FFFFh
    8080    ja      SHORT .FileTooBig
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Buffers.asm

    r567 r589  
    214214    call    Buffers_GetFileBufferToESDI
    215215    call    EEPROM_GetXtideUniversalBiosSizeFromESDItoDXCX
    216     dec     cx              ; Leave space for checksum byte
    217     xor     ax, ax
    218 ALIGN JUMP_ALIGN
     216
     217; Compatibility fix for 3Com 3C503 cards where the ASIC returns 8080h as the last two bytes of the ROM.
     218
     219    ; Assume the BIOS size is not 8K, ie generate a normal checksum.
     220    dec     cx
     221    mov     ax, 100h
     222    cmp     cx, 8192 - 1
     223    jne     SHORT .BiosSizeIsNot8K
     224    ; The BIOS size is 8K and therefore a potential candidate for a 3Com 3C503 card.
     225    dec     cx
     226    dec     cx
     227    mov     ah, 3
     228ALIGN JUMP_ALIGN
     229.BiosSizeIsNot8K:
    219230.SumNextByte:
    220231    add     al, [es:di]
     232.NextChecksumByte:
    221233    inc     di
    222234    loop    .SumNextByte
    223235    neg     al
    224236    mov     [es:di], al
     237    inc     cx
     238    dec     ah
     239    jnz     SHORT .NextChecksumByte
    225240
    226241    pop     dx
     
    271286;       ES:DI:  Ptr to file buffer
    272287;   Corrupts registers:
    273 ;       AX
     288;       Nothing
    274289;--------------------------------------------------------------------
    275290ALIGN JUMP_ALIGN
    276291Buffers_GetIdeControllerCountToCX:
    277     call    Buffers_GetFileBufferToESDI
    278     mov     al, [es:di+ROMVARS.bIdeCnt]
    279 
    280     ; Limit controller count for lite mode
     292    xor     cx, cx
     293    call    Buffers_GetFileBufferToESDI
     294    or      cl, [es:di+ROMVARS.bIdeCnt]
     295    jnz     SHORT .LimitControllerCountForLiteMode
     296    inc     cx              ; Make sure there is at least one controller
     297
     298.LimitControllerCountForLiteMode:
    281299    test    BYTE [es:di+ROMVARS.wFlags], FLG_ROMVARS_FULLMODE
    282300    jnz     SHORT .ReturnControllerCountInCX
    283     MIN_U   al, MAX_LITE_MODE_CONTROLLERS
     301    MIN_U   cl, MAX_LITE_MODE_CONTROLLERS
    284302
    285303.ReturnControllerCountInCX:
    286     cbw     ; A maximum of 127 controllers should be sufficient
    287     xchg    cx, ax
    288304    ret
    289305
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/EEPROM.asm

    r568 r589  
    8181    mov     cl, dl
    8282    eSHL_IM ch, 1
     83    eRCL_IM dl, 1
    8384    ret
    8485
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/IdeAutodetect.asm

    r567 r589  
    5656DetectMemoryMappedDeviceFromSegmentDX:
    5757    ; *** Try to detect JR-IDE/ISA and ADP50L (only if MODULE_8BIT_IDE_ADVANCED is present) ***
    58     test    WORD [di+ROMVARS.wFlags], FLG_ROMVARS_MODULE_8BIT_IDE_ADVANCED
     58    test    BYTE [di+ROMVARS.wFlags], FLG_ROMVARS_MODULE_8BIT_IDE_ADVANCED
    5959    stc
    6060    jz      SHORT .NoIdeDeviceFound
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Main.asm

    r554 r589  
    7676ALIGN JUMP_ALIGN
    7777Main_Start:
     78    mov     ah, GET_DOS_VERSION
     79    int     DOS_INTERRUPT_21h
     80    cmp     al, 2
     81    jae     SHORT .DosVersionIsOK
     82    mov     dx, g_s$NotMinimumDosVersion
     83    mov     ah, WRITE_STRING_TO_STANDARD_OUTPUT
     84    int     DOS_INTERRUPT_21h
     85    ret
     86.DosVersionIsOK:
     87
    7888    mov     ax, SCREEN_BACKGROUND_CHARACTER_AND_ATTRIBUTE
    79     call    InitializeScreenWithBackgroudCharAndAttrInAX
     89    call    InitializeScreenWithBackgroundCharAndAttrInAX
    8090
    8191    call    Main_InitializeCfgVars
    8292    call    MenuEvents_DisplayMenu
    8393    mov     ax, DOS_BACKGROUND_CHARACTER_AND_ATTRIBUTE
    84     call    InitializeScreenWithBackgroudCharAndAttrInAX
     94    call    InitializeScreenWithBackgroundCharAndAttrInAX
    8595
    8696    ; Exit to DOS
    87     mov     ax, 4C00h           ; Exit to DOS
    88     int     21h
     97    mov     ax, TERMINATE_WITH_RETURN_CODE<<8       ; Errorlevel 0 in AL
     98    int     DOS_INTERRUPT_21h
    8999
    90100
    91101;--------------------------------------------------------------------
    92 ; InitializeScreenWithBackgroudCharAndAttrInAX
     102; InitializeScreenWithBackgroundCharAndAttrInAX
    93103;   Parameters:
    94104;       AL:     Background character
     
    100110;--------------------------------------------------------------------
    101111ALIGN JUMP_ALIGN
    102 InitializeScreenWithBackgroudCharAndAttrInAX:
     112InitializeScreenWithBackgroundCharAndAttrInAX:
    103113    xchg    dx, ax
    104114    CALL_DISPLAY_LIBRARY InitializeDisplayContext   ; Reset cursor etc
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/MenuitemPrint.asm

    r526 r589  
    156156; MenuitemPrint_WriteLookupValueStringToBufferInESDIfromUnshiftedItemInDSSI
    157157; MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
     158; MenuitemPrint_WriteLookupValueStringToBufferInESDIfromRawItemInDSSI
    158159;   Parameters:
    159160;       DS:SI:  Ptr to MENUITEM
     
    177178
    178179;--------------------------------------------------------------------
    179 ; MenuitemPrint_WriteLookupValueStringToBufferInESDIfromItemInDSSI
     180; PrintLookupValueFromAXtoBufferInESDI
    180181;   Parameters:
    181182;       AX:     Value to print
     
    190191PrintLookupValueFromAXtoBufferInESDI:
    191192    push    si
    192     test    byte [si+MENUITEM.bFlags], FLG_MENUITEM_CHOICESTRINGS
    193     jnz     .lookupChoice
     193    test    BYTE [si+MENUITEM.bFlags], FLG_MENUITEM_CHOICESTRINGS
     194    jnz     SHORT .LookupChoice
    194195
    195196    add     ax, [si+MENUITEM.itemValue+ITEM_VALUE.rgszValueToStringLookup]
    196197    xchg    bx, ax
    197 .found:
     198.Found:
    198199    mov     si, [bx]
    199 .errorReturn:
     200.ErrorReturn:
    200201    call    String_CopyDSSItoESDIandGetLengthToCX
    201202    pop     si
     
    212213; value could be zero, we don't use the .rgwChoiceToValueLookup array to find the end.
    213214;
    214 .lookupChoice:
    215     mov     bx,[si+MENUITEM.itemValue+ITEM_VALUE.rgszChoiceToStringLookup]
    216     mov     si,[si+MENUITEM.itemValue+ITEM_VALUE.rgwChoiceToValueLookup]
    217 
    218 .wordLoop:
    219     cmp     ax,[si]
    220     jz      .found
     215.LookupChoice:
     216    mov     bx, [si+MENUITEM.itemValue+ITEM_VALUE.rgszChoiceToStringLookup]
     217    mov     si, [si+MENUITEM.itemValue+ITEM_VALUE.rgwChoiceToValueLookup]
     218
     219.WordLoop:
     220    cmp     ax, [si]
     221    je      SHORT .Found
    221222    inc     bx
    222223    inc     bx
    223224    inc     si
    224225    inc     si
    225     cmp     word [bx],0
    226     jnz     .wordLoop
    227 
    228     mov     si,g_szValueUnknownError
    229     jmp     .errorReturn
     226    cmp     WORD [bx], 0
     227    jne     SHORT .WordLoop
     228
     229    mov     si, g_szValueUnknownError
     230    jmp     SHORT .ErrorReturn
    230231
    231232;--------------------------------------------------------------------
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Menupages/ConfigurationMenu.asm

    r567 r589  
    177177        %assign i i+1
    178178    %endrep
    179     ;   dw  NULL    ; Is this needed? *FIXME*
     179        dw  NULL
     180
    180181
    181182; Section containing code
     
    285286    call    Buffers_GetRomvarsFlagsToAX
    286287    mov     bx, g_MenuitemConfigurationIdleTimeout
    287     test    ax, FLG_ROMVARS_MODULE_POWER_MANAGEMENT
     288    test    al, FLG_ROMVARS_MODULE_POWER_MANAGEMENT
    288289    jz      SHORT .DisableMenuitemFromCSBX
    289290    ; Fall to .EnableMenuitemFromCSBX
     
    393394    push    es
    394395    pop     ds
    395     xor     ch, ch                      ; clearing high order of CX and notification flag
    396     mov     dx, cx                      ; (probably unnecessary, CX should be less than 127, but just to be sure)
    397     jcxz    .done                       ; probably unnecessary, but make sure there is at least one controller
     396    mov     dx, cx                      ; Controller count to DL (will always be at least 1) while also clearing notification flag in DH
    398397
    399398    lea     bx, [di+ROMVARS.ideVars0]   ; add in offset of first idevars
     
    404403    xor     ax, ax                      ; first non-serial found
    405404    mov     cl, dl                      ; idevars count
    406     xor     ch, ch
    407405
    408406.loop:
    409     cmp     byte [di+IDEVARS.bDevice], DEVICE_SERIAL_PORT
    410     jnz     .notSerial
     407    cmp     BYTE [di+IDEVARS.bDevice], DEVICE_SERIAL_PORT
     408    jne     SHORT .notSerial
    411409
    412410    test    si, si                      ; record the first serial controller that we find
    413     jnz     .next
     411    jnz     SHORT .next
    414412    mov     si, di
    415413    SKIP2B  f
     
    423421
    424422    test    si, si                      ; no serial drives, nothing to do
    425     jz      .done
     423    jz      SHORT .done
    426424    cmp     si, ax                      ; serial port is already later on the list than any other controllers
    427     ja      .done                       ; (also takes care of the case where there are no other controllers)
     425    ja      SHORT .done                 ; (also takes care of the case where there are no other controllers)
    428426
    429427;
     
    438436    mov     di, sp
    439437
    440     mov     cx, IDEVARS_size
    441438    push    ss
    442439    pop     es
    443440
     441%if IDEVARS_size & 1
     442    mov     cl, IDEVARS_size
    444443    rep movsb
     444%else
     445    mov     cl, IDEVARS_size / 2
     446    rep movsw
     447%endif
    445448
    446449    lea     di, [si-IDEVARS_size]       ; move up all the idevars below the serial, by one slot
     
    457460    push    ss
    458461    pop     ds
    459     mov     cx, IDEVARS_size
    460462    ; di is already at last IDEVARS position
    461463
     464%if IDEVARS_size & 1
     465    mov     cl, IDEVARS_size
    462466    rep movsb
     467%else
     468    mov     cl, IDEVARS_size / 2
     469    rep movsw
     470%endif
    463471
    464472    add     sp, IDEVARS_size
     
    469477    mov     dh, 1                       ; set flag that we have done a relocation
    470478
    471     jmp     .outerLoop
     479    jmp     SHORT .outerLoop
    472480
    473481.done:
     
    478486
    479487    test    dh, dh
    480     jz      .noWorkDone
     488    jz      SHORT .noWorkDone
    481489
    482490    mov     dx, g_szSerialMoved
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Menupages/FlashMenu.asm

    r568 r589  
    328328    call    .GetSelectedEepromSizeInWordsToAX
    329329    xor     dx, dx
    330     shl     ax, 1       ; Size in bytes to...
    331     rcl     dx, 1       ; ...DX:AX
     330    eSHL_IM ax, 1       ; Size in bytes to...
     331    eRCL_IM dx, 1       ; ...DX:AX
    332332
    333333    cmp     WORD [si+FLASHVARS.wEepromPageSize], BYTE 1
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Menupages/IdeControllerMenu.asm

    r588 r589  
    571571
    572572
    573 ;
    574 ; No change to Device byte, but use this opportunity to change defaults stored in wPort and wPortCtrl if we are
    575 ; changing in/out of a Serial device (since we use these bytes in radically different ways).
    576 ;
    577573ALIGN JUMP_ALIGN
    578574IdeControllerMenu_WriteDevice:
     
    581577    push    ax
    582578
     579    mov     bl, [es:di]                         ; What is the current Device we are changing from?
     580    sub     di, BYTE IDEVARS.bDevice - IDEVARS.wBasePort    ; Get ready to set the Port addresses
     581
    583582    ; Note! AL is the choice index, not device code
    584     shl     ax, 1                               ; Selection to device code
    585     mov     bl, [es:di]                         ; what is the current Device we are changing from?
    586     sub     di, BYTE IDEVARS.bDevice - IDEVARS.wBasePort    ; Get ready to set the Port addresses
     583    shl     al, 1                               ; Selection to device code
     584
     585    ; Restore ports and other stuff to default values
     586    jz      SHORT .StandardIdeDevice            ; DEVICE_16BIT_ATA
     587
     588    cmp     al, DEVICE_8BIT_ATA
     589    ja      SHORT .NotStandardIdeDevice
     590    jb      SHORT .AdvancedAtaDevice            ; DEVICE_32BIT_ATA
     591    test    BYTE [es:ROMVARS.wFlags], FLG_ROMVARS_MODULE_8BIT_IDE
     592    jmp     SHORT .CheckZF
     593
     594.AdvancedAtaDevice:
     595    test    BYTE [es:ROMVARS.wFlags+1], FLG_ROMVARS_MODULE_ADVANCED_ATA >> 8
     596.CheckZF:
     597    jz      SHORT .SupportForDeviceNotAvailable
     598
     599    ; Standard ATA controllers, including 8-bit mode
     600.StandardIdeDevice:
     601    lea     ax, [di-ROMVARS.ideVars0+IDEVARS.wBasePort]
     602    mov     bl, IDEVARS_size
     603    div     bl
     604    mov     bx, .rgbLowByteOfStdIdeInterfacePorts
     605    xlat
     606    mov     ah, 1                               ; DEVICE_ATA_*_PORT >> 8
     607    mov     bh, 3                               ; DEVICE_ATA_*_PORTCTRL >> 8
     608    mov     bl, al
     609    jmp     SHORT .WriteNonSerial
     610
     611.rgbLowByteOfStdIdeInterfacePorts:              ; Defaults for 16-bit and better ATA devices
     612    db      DEVICE_ATA_PRIMARY_PORT     & 0FFh
     613    db      DEVICE_ATA_SECONDARY_PORT   & 0FFh
     614    db      DEVICE_ATA_TERTIARY_PORT    & 0FFh
     615    db      DEVICE_ATA_QUATERNARY_PORT  & 0FFh
     616
     617.NotStandardIdeDevice:
    587618    cmp     al, DEVICE_SERIAL_PORT
    588     je      SHORT .ChangingToSerial
     619    jb      SHORT .NotSerialDevice
     620    test    BYTE [es:ROMVARS.wFlags+1], FLG_ROMVARS_MODULE_SERIAL >> 8
     621    jnz     SHORT .ChangingToSerial
     622
     623.SupportForDeviceNotAvailable:
     624    push    dx
     625    mov     dx, g_szUnsupportedDevice
     626    call    Dialogs_DisplayErrorFromCSDX
     627    pop     dx
     628
     629    ; Restore device type to the previous value
     630    pop     ax                                  ; Get choice index from stack
     631    mov     al, bl                              ; Previous device type to AL
     632    shr     al, 1                               ; Device code to choice index
     633    jmp     SHORT .DoneWithNoChangeOfDevice
     634
     635.NotSerialDevice:
     636    ; Remaining device types all require MODULE_8BIT_IDE or MODULE_8BIT_IDE_ADVANCED
     637    test    BYTE [es:ROMVARS.wFlags], FLG_ROMVARS_MODULE_8BIT_IDE | FLG_ROMVARS_MODULE_8BIT_IDE_ADVANCED
     638    jz      SHORT .SupportForDeviceNotAvailable
     639
     640    ; We know MODULE_8BIT_IDE is included
     641    lahf    ; Save the PF
     642    cmp     al, DEVICE_8BIT_XTIDE_REV2
     643    jbe     SHORT .ChangingToXTIDEorXTCF
     644    sahf    ; Restore the PF
     645    jpo     SHORT .SupportForDeviceNotAvailable ; Jump if no MODULE_8BIT_IDE_ADVANCED
    589646    cmp     al, DEVICE_8BIT_JRIDE_ISA
    590647    je      SHORT .ChangingToJrIdeIsa
     
    592649    je      SHORT .ChangingToADP50L
    593650
    594     ; Restore ports to default values
    595     cmp     al, DEVICE_8BIT_ATA                 ; Standard ATA controllers, including 8-bit mode
    596     mov     ax, DEVICE_ATA_PRIMARY_PORT         ; Defaults for 16-bit and better ATA devices
    597     mov     bx, DEVICE_ATA_PRIMARY_PORTCTRL
    598     jbe     SHORT .WriteNonSerial
    599 
     651.ChangingToXTIDEorXTCF:
    600652    mov     ax, DEVICE_XTIDE_DEFAULT_PORT       ; Defaults for 8-bit XTIDE and XT-CF devices
    601653    mov     bx, DEVICE_XTIDE_DEFAULT_PORTCTRL
     
    631683.Done:
    632684    pop     ax
     685.DoneWithNoChangeOfDevice:
    633686    pop     di          ; IDEVARS.bDevice
    634687    pop     bx
  • trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Strings.asm

    r588 r589  
    2121SECTION .data
    2222
     23; DOS version check
     24g_s$NotMinimumDosVersion:           db  LF,"This program requires DOS version 2 or higher.",LF,"$"
     25
    2326; Menu title
    2427g_szProgramTitle:                   db  "Configuration and Flashing program for XTIDE Universal BIOS v2.0.0.",LF,CR,NULL
    25 g_szXtideUniversalBiosSignature:    db  "XTIDE205",NULL
     28g_szXtideUniversalBiosSignature:    db  FLASH_SIGNATURE,NULL
    2629g_szBiosIsNotLoaded:                db  "BIOS is not loaded!",NULL
    2730g_szEEPROM:                         db  "EEPROM",NULL
     
    134137                        db  " Conventional memory. This makes it possible to use ROM BASIC and other software that requires"
    135138                        db  " the interrupt vectors where XTIDE Universal BIOS parameters would be stored in Lite mode.",LF,LF
    136                         db  "Lite mode supports only one IDE controller (2 drives) and stores parameters to the top of the interrupt vectors"
     139                        db  "Lite mode supports only 2 IDE controllers (4 drives) and stores parameters to the top of the interrupt vectors"
    137140                        db  " (30:0h) so no Conventional memory needs to be reserved. Lite mode cannot be used if some software requires"
    138141                        db  " the top of interrupt vectors. Usually this is not a problem since only IBM ROM BASIC uses them.",LF,LF
     
    221224g_szDlgIdeEnIRQ:            db  "Enable interrupt?",NULL
    222225g_szDlgIdeIRQ:              db  "Enter IRQ channel (2...7 for 8-bit controllers, 2...15 for any other controller).",NULL
     226g_szUnsupportedDevice:      db  "There is no support for this device type in the currently loaded BIOS."
     227                            db  " You must load a BIOS built with the proper module included to be able to use this type of device.",NULL
    223228
    224229g_szNfoIdeBackToCfgMenu:    db  "Back to XTIDE Universal BIOS Configuration Menu.",NULL
     
    275280                            db  "XTIDE rev 1",LF
    276281                            db  "XTIDE rev 2 or modded rev 1",LF
    277                             db  "XT-CF (PIO8)",LF
    278                             db  "XT-CF (PIO8 w/BIU offload)",LF
    279                             db  "XT-CF (PIO16 w/BIU offload)",LF
     282                            db  "XT-CF PIO8",LF
     283                            db  "XT-CF PIO8 (BIU offload)",LF
     284                            db  "XT-CF PIO16 (BIU offload)",LF
    280285                            db  "XT-CF DMA (v3 only)",LF
    281286                            db  "JR-IDE/ISA",LF
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