Chess

I've always had an interest in computer chess - I wrote two (bad) programs long ago. One in Pascal (1981) and the other in 6502 (Atari 800, 1985). Anyway, I've just had a go at doing a mockup chessboard display. See the video. Each frame is generated on the Stella emulator, but I'm just stepping through different instances to make it look like it's animating. In reality this is a screen recording of me flipping through images (screenshots) of multiple runs of Stella - each with a diffe

By Andrew Davie, December 3, 2019
1,262 replies

you have to put the emulate_3EPlus_cartridge function into the UnoCart main.c file and put some <<8 and >>8 to the DATA_OUT and DATA_IN values, because the UnoCart uses the upper part of the GPIO port and the PlusCart uses the lower, so i could get rid of these shifts. To see how this is done by the UnoCart take a look at the other emulate_XXX_cartridge functions. You also need the detection function in UnoCarts main.c: https://gitlab.com/firmaplus/atari-2600-pluscart/-