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inital results on error correction

While I have yet to actually implement the full-scale error correction as I want to, I did some manual tests today. I basically took a track that I was erroring out on, and swapped in 1-bit away values for the bad bytes.  In some cases, it appeared...

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3D Wireframe Rotation dreams…

So I’d really like to be able to rotate 3D objects using this computer. There’s some problems though that make it a little harder than normal. The 68000 doesn’t have any integrated Floating Point...

Identify PAL inputs and outputs

In order to properly reverse engineer a PAL, you need to correctly identify which pins are inputs, and which pins are outputs. This in some cases is trivial because some of the PAL’s pin functions are fixed...