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Tag: WinCUPL

Posted on May 15, 2022July 22, 2022

65816: Build 4 – Revisiting PLD Coding

In a long postscript to 65816: Build 4 – Adding Expanded RAM I discussed some alternatives I tried to achieve the following memory map in my ATF22V10C PLD. There’s nothing magical about this memory map, it’s just something I wanted to try, for reasons I’ll discuss in a operating system post if I ever get …

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Posted on March 5, 2022July 22, 2022

6502: Programmable Logic Devices – Address Decoder Revisited

I mentioned in my last post, Venturing Forth, that I ordered a programmable logic device to better refine my address decoding as my current circuit wastes about 16k on I/O. I worked up the new memory map and PLD files while waiting for the device to arrive. Then, as seems all too common with me, …

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