SjASMPlus от z00m

[NEO SPECTRUMAN]

Any info about that header checksum, how to calculate it?

например

0000       Restart $00 Address
           (RST $00 calls this address.)
0008       Restart $08 Address 
           (RST $08 calls this address.)
0010       Restart $10 Address 
           (RST $10 calls this address.)
0018       Restart $18 Address 
           (RST $18 calls this address.)
0020       Restart $20 Address 
           (RST $20 calls this address.)
0028       Restart $28 Address 
           (RST $28 calls this address.)
0030       Restart $30 Address 
           (RST $30 calls this address.)
0038       Restart $38 Address 
           (RST $38 calls this address.)

0040       Vertical Blank Interrupt Start Address

0048       LCDC Status Interrupt Start Address

0050       Timer Overflow Interrupt Start Address

0058       Serial Transfer Completion Interrupt 
           Start Address

0060       High-to-Low of P10-P13 Interrupt 
           Start Address
An internal information area is located at 0100-014F in
each cartridge. It contains the following values:

0100-0103  This is the begin code execution point in a
           cart. Usually there is a NOP and a JP
           instruction here but not always.

0104-0133  Scrolling Nintendo graphic:
        CE ED 66 66 CC 0D 00 0B 03 73 00 83 00 0C 00 0D
        00 08 11 1F 88 89 00 0E DC CC 6E E6 DD DD D9 99
        BB BB 67 63 6E 0E EC CC DD DC 99 9F BB B9 33 3E
           ( PROGRAM WON'T RUN IF CHANGED!!!)

0134-0142  Title of the game in UPPER CASE ASCII. If it
           is less than 16 characters then the
           remaining bytes are filled with 00's.

0143       $80 = Color GB, $00 or other = not Color GB

0144       Ascii hex digit, high nibble of licensee
           code (new).

0145       Ascii hex digit, low nibble of licensee 
  code (new). (These are normally $00 if
           [$014B] <> $33.)

0146       GB/SGB Indicator (00 = GameBoy, 03 = Super
           GameBoy functions)
           (Super GameBoy functions won't work 
           if <> $03.)

0147       Cartridge type:
    0-ROM ONLY             12-ROM+MBC3+RAM
    1-ROM+MBC1             13-ROM+MBC3+RAM+BATT
    2-ROM+MBC1+RAM         19-ROM+MBC5
    3-ROM+MBC1+RAM+BATT    1A-ROM+MBC5+RAM
    5-ROM+MBC2             1B-ROM+MBC5+RAM+BATT
    6-ROM+MBC2+BATTERY     1C-ROM+MBC5+RUMBLE
    8-ROM+RAM              1D-ROM+MBC5+RUMBLE+SRAM
    9-ROM+RAM+BATTERY      1E-ROM+MBC5+RUMBLE+SRAM+BATT
    B-ROM+MMM01            1F-Pocket Camera
    C-ROM+MMM01+SRAM       FD-Bandai TAMA5
    D-ROM+MMM01+SRAM+BATT  FE - Hudson HuC-3
    F-ROM+MBC3+TIMER+BATT  FF - Hudson HuC-1
   10-ROM+MBC3+TIMER+RAM+BATT
   11-ROM+MBC3

0148       ROM size:
             0 - 256Kbit =  32KByte =   2 banks
             1 - 512Kbit =  64KByte =   4 banks
             2 -   1Mbit = 128KByte =   8 banks
             3 -   2Mbit = 256KByte =  16 banks
             4 -   4Mbit = 512KByte =  32 banks
             5 -   8Mbit =   1MByte =  64 banks
             6 -  16Mbit =   2MByte = 128 banks
           $52 -   9Mbit = 1.1MByte =  72 banks
           $53 -  10Mbit = 1.2MByte =  80 banks
           $54 -  12Mbit = 1.5MByte =  96 banks

0149       RAM size:
           0 - None
           1 -  16kBit =  2kB = 1 bank
           2 -  64kBit =  8kB = 1 bank
           3 - 256kBit = 32kB = 4 banks
           4 -   1MBit =128kB =16 banks

014A       Destination code:
           0 - Japanese
           1 - Non-Japanese

014B       Licensee code (old):
           33 - Check 0144/0145 for Licensee code.
           79 - Accolade
           A4 - Konami
           (Super GameBoy function won't work 
           if <> $33.)

014C       Mask ROM Version number (Usually $00)

014D       Complement check
           (PROGRAM WON'T RUN ON GB IF NOT CORRECT!!!)
           (It will run on Super GB, however, 
           if incorrect.)

014E-014F  Checksum (higher byte first) produced by
           adding all bytes of a cartridge except for
           two checksum bytes and taking two lower
           bytes of the result. (GameBoy ignores this
           value.)

а так для тестирования в bgb
можно загрузить любой .bin любого размера
просто header заполнить 0
а с его дебагера можно уже запустить с любого адреса

- - - Добавлено - - -

http://bgb.bircd.org/