2 ms·
"organized" is probably an overstatement for this project :-) David wanted to find out about the internals of the MC14500B, so he got a couple of them on eBay a
by kens 6y ago
"organized" is probably an overstatement for this project :-) David wanted to find out about the internals of the MC14500B, so he got a couple of them on eBay and sent them to John for decapping (https://siliconpr0n.org/archive/doku.php?id=mcmaster:start#commissioning https://siliconpr0n.org/archive/doku.php?id=mcmaster:start#c...). Since I've been interested in this chip for a while, I studied the die photos and figured out how it works and wrote this blog post.
The 6502 ROR bug sounds like an interesting puzzle. As far as I know, there's nothing conclusive on it. The last I heard is https://www.pagetable.com/?p=406 https://www.pagetable.com/?p=406