*NEW* Commodore 64 C64 multi-game 8x8KB games cartridge - $18 - (San Jose, CA)
Listed is a brand new Commodore 64 cartridge that comes with the Winbond 27C512 (64KB) EEPROM that is enough to store EIGHT 8KB games/ROMs. You can flash any ROM (game or utilities, such as diagnostic programs), as long as each ROM is 8KB in length. You MUST have your own programmer to program the Winbond EEPROM. The best one I found on eBay is the Mini USB TL866CS Programmer. It can program a lot of chips, including the Winbond 27C512. Each ROM image MUST be 8KB (8192 bytes) EXACTLY in size, so that each game can be switched to. That means you must have a way to pad a ROM less than 8192 bytes to become 8192 bytes in size. You concatenate four 8KB ROMs into one single binary file and flash it to the EEPROM with your programmer. In DOS, the sample command of concatenate four binary files into one is below. 'final_rom.bin' is the result ROM file that you can flash onto the EEPROM. You need to substitute for real file names in the below command, of course. copy /b rom1.bin + /b rom2.bin + /b rom3.bin + /b rom4.bin + /b rom5/.bin + b/ rom6.bin + /b rom7.bin + /b rom8.bin final_rom.bin You will see a lot of Commodore 64 ROM files as .crt files. The .crt file format is a made-up file format for emulators. Download WinVice from the net, a Commodore computer emulator. It has a command called 'cartconv' to help you to convert .crt file to .bin file. Example command: cartconv -i rom.crt -out rom.binConfigurationIMPORTANT: ALWAYS TURN YOUR C64 OFF BEFORE MOVING THE CONFIGURATION JUMPERS.When flashing the contents, make sure that every file is exactly 8192 bytes long and just concatenate them. Then use the following table to set the jumper configuration for your game of choice:ROM Image #A13A14A151LLL2HLL3LHL4HHL5LLH6HLH7LHH8HHHYou will also need to configure the ROM and EXROM/GAME jumpers for the chosen image, according to the following table:ModeROMGAMEEXROMNotesROMLLOOpenCloseMost common settingROMHHICloseCloseUsed for 16 KB cartridges, so do NOT use this settingUltimaxHI…
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