Changeset 589 in xtideuniversalbios for trunk/Assembly_Library/Src/Serial/SerialServerScan.asm


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.
File:
1 edited

Legend:

Unmodified
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Removed

  • trunk/Assembly_Library/Src/Serial/SerialServerScan.asm

    r567 r589  
    4646
    4747        test    dx, dx
    48         jnz     short SerialServerScan_CheckForServer_PortAndBaudInDX
     48        jnz     SHORT SerialServerScan_CheckForServer_PortAndBaudInDX
    4949
    50         mov     di,.scanPortAddresses-1
    51         mov     ch,1            ;  tell server that we are scanning
     50        mov     di, .scanPortAddresses-1
     51        mov     ch, 1           ;  tell server that we are scanning
    5252
    5353.nextPort:
    5454        inc     di              ; load next port address
    55         xor     dh, dh
    56         mov     dl,[cs:di]
     55        mov     dh, 40h         ; Clear DH and make sure CF is set if error
     56        mov     dl, [cs:di]
    5757        eSHL_IM dx, 2           ; shift from one byte to two
    58         stc                     ; setup error code for exit
    59         jz      .error
     58        jz      SHORT .error
    6059
    6160;
    … …  
    6362;
    6463        push    dx
    65         add     dl,Serial_UART_lineControl
    66         mov     al, 09ah
     64        add     dl, Serial_UART_lineControl
     65        mov     al, 9Ah
    6766        out     dx, al
    6867        in      al, dx
    6968        pop     dx
    70         cmp     al, 09ah
    71         jnz     .nextPort
     69        cmp     al, 9Ah
     70        jne     SHORT .nextPort
    7271
    73         mov     al, 0ch
     72        mov     al, 0Ch
    7473        out     dx, al
    7574        in      al, dx
    76         cmp     al, 0ch
    77         jnz     .nextPort
     75        cmp     al, 0Ch
     76        jne     SHORT .nextPort
    7877
    7978;
    … …  
    8483; *on the server side* if the client side had a 4x clock multiplier, a 2x clock multiplier, or no clock multiplier.
    8584;
    86 ; Starting with 30h, that means 30h (2400 baud), 18h (4800 baud), 0ch (9600 baud), and
     85; Starting with 30h, that means 30h (2400 baud), 18h (4800 baud), 0Ch (9600 baud), and
    8786;                               04h (28800 baud), 02h (57600 baud), 01h (115200 baud)
    8887;
    89 ; Note: hardware baud multipliers (2x, 4x) will impact the final baud rate and are not known at this level
     88; Note: hardware baud multipliers (2x, 4x, 8x) will impact the final baud rate and are not known at this level
    9089;
    91         mov     dh,030h * 2     ; multiply by 2 since we are about to divide by 2
    92         mov     dl,[cs:di]      ; restore single byte port address for scan
     90        mov     dh, 30h * 2     ; multiply by 2 since we are about to divide by 2
     91        mov     dl, [cs:di]     ; restore single byte port address for scan
    9392
    9493.nextBaud:
    95         shr     dh,1
    96         jz      .nextPort
    97         cmp     dh,6            ; skip from 6 to 4, to move from the top of the 9600 baud range
    98         jnz     .testBaud       ; to the bottom of the 115200 baud range
    99         mov     dh,4
     94        shr     dh, 1
     95        jz      SHORT .nextPort
     96        cmp     dh, 6           ; skip from 6 to 4, to move from the top of the 9600 baud range
     97        jne     SHORT .testBaud ; to the bottom of the 115200 baud range
     98        mov     dh, 4
    10099
    101100.testBaud:
    102101        call    SerialServerScan_CheckForServer_PortAndBaudInDX
    103         jc      .nextBaud
     102        jc      SHORT .nextBaud
    104103
    105104.error:
    … …  
    135134SerialServerScan_CheckForServer_PortAndBaudInDX:
    136135        push    bp              ; setup fake SerialServer_Command
    137 
    138136        push    dx              ; send port baud and rate, returned in inquire packet
    139137                                ; (and possibly returned in the drive identification string)
    140 
    141138        push    cx              ; send number of sectors, and if it is on a scan or not
    142 
    143         mov     bl,SerialServer_Command_Inquire         ; protocol command onto stack with bh
     139        mov     bl, SerialServer_Command_Inquire        ; protocol command onto stack with bh
    144140        push    bx
    145141
    146         mov     bp,sp
    147 
     142        mov     bp, sp
    148143        call    SerialServer_SendReceive
    149144
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