Thursday, July 24, 2014

Getting intense...

Yesterday I wired up the remaining lines on the video DACs. ZX Prism now has more than 8 colours - in fact it has a total of 4096 colours available (though currently you can only choose up to 256 of them for use at one time).

I again tested the 4-plane planar mode with RGBI attribute decoding. When doing so, I initially forgot to put the appropriate test data back into the VRAM pages - instead four loading screens were loaded (from an earlier 512x384 test). What resulted was both a complete mess and also a great demo of planar mode, so I decided to take a picture and put it up here.

Can you work out which game was loaded into which bitplane?
For fun, I did another one too...

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