TENGEN-800008 shematic

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TENGEN-800008 shematic
by on (#126422)
hello. Tell me what this scheme olichaetsya cartridge http://bootgod.dyndns.org:7777/profile.php?id=671 of http://bootgod.dyndns.org:7777/profile.php?id=302? Assembled cartridge. With the game Tetris and it does not work. Thank you for your help.
Re: TENGEN-800008 shematic
by on (#126423)
I am having trouble understanding your post, but I'm guessing you're saying you built a reproduction of Tengen Tetris using an Arkanoid board, and it doesn't work...

Kevtris says that 800008 is equivalent to NINA-03. But undersize NINA-03 with only 32 KiB PRG is compatible to CNROM, so that can't be it.

CNROM is simple enough, and Tengen's Tetris doesn't seem to have any data stored in CHRROM: you've probably got a connectivity problem. Consider trying burning Galaxian or some tinier test.

(p.s.: consider including your native language as well as the machine translation. It'll make it easier to understand if the translation is inadequate)
Re: TENGEN-800008 shematic
by on (#134549)
These NINA boards have their writable register at $4100, while this Tengen board has it at $8000. It's like GNROM with the PRG bit moved down to bit 3, but in the only extant game, the subset used is indeed equivalent to CNROM.