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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...

Amiga 500 A501 RAS/CAS dynamic ram timing

So I found myself looking at the dynamic ram timing with a logic analyzer attached to an Amiga 500. I’m still learning all of this stuff, and after about 45 minutes, I gave up thinking that I was either too tired...