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Forums > Requests > Wanted: C64 Cartridge Creation Hardware.
2002-12-17 11:06
thejpc
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Registered: Dec 2002
Posts: 1
Wanted: C64 Cartridge Creation Hardware.

I'm interested in creating some carts of my favourite C64 (single load) games but I have no idea where to get the necessary hardware from so any advice would be greatly appreciated. Many thanks in advance!
2003-06-04 15:00
HackZ0id
Account closed

Registered: Sep 2002
Posts: 6
AFAIK there are no toolkits for creating game carts. But I'll tell you what you'll need to make one:

EEPROM burner

32x8 or 64x8 kbit EEPROM ROM ( depending on filesize() )

PCB (Best thing is to copy an existing if you have it)
(I have a cart with 32kb circuit + logic)

Addressing logic (this is to map the 32kb/64kb rom to the
8kb memory-holes the c64 provides for
carts) Mine is made with 74174+74LS10.

Bootloader. CBM kernal provides the facilities for cart-autoboot by providing a match-sequence of bytes in start of rom area. You'll need to write a small ML-routine that simply copies the game-data you've put into the EEPROM, taking the banking of the cart in consideration, after which the banks of the c64 are restored and the game is started.

If you've never been into soldering things together you'll probably need some more explaining further on. Just ask!

regards
Hz
2003-06-06 06:02
Graham
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Registered: Dec 2002
Posts: 990
most of the old cartridges can be run from RAM after you have disabled the copy protection with a few POKEs.
2003-06-06 10:23
HackZ0id
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Registered: Sep 2002
Posts: 6
I think he was talking about taking a one-filer game and convert it to an autobooting cart, not the other way around.
2003-06-06 11:28
Graham
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Registered: Dec 2002
Posts: 990
that only works for games of max 16 KB size. since i believe your favourite games are usually more than 64 blocks on disk, it's not that easy. you need extra banking logic for that, not just a cartridge.
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