JeffJetton Posted September 26, 2019 Share Posted September 26, 2019 Some of you might be familiar with Ben Eater. He famously posted a series of videos in which he built a basic, 8-bit computer from scratch using TTL components on a bunch of breadboards, clearly explaining the reasoning behind every step. (And when I say "from scratch", I mean he cobbled together the clock, the registers, the ALU... the whole shebang!) Well now he's building a 6502-based computer. Not quite as far down to the bare metal as the previous project, I'd imagine, since he's using a microprocessor chip this time. But I suspect we'll wind up with more useful device when it's all done. The first video in the series came out a few days ago, and it's fantastic: (Most of us here will be able to guess why he used $EA for his data input value before he reveals the answer, of course. ? ) 4 Quote Link to comment Share on other sites More sharing options...
JeffJetton Posted November 3, 2019 Author Share Posted November 3, 2019 (edited) It's been a looooong wait, but part II is finally up! ? In this one, he hooks the 6502 up to an EEPROM so it can actually execute a real sequence of instructions, and later adds another chip (a cousin of the Atari's RIOT, in turns out) to latch output data: https://www.youtube.com/watch?v=yl8vPW5hydQ I find this stuff really interesting, and it's giving me more insight on how the 2600 works. Edited November 3, 2019 by JeffJetton Quote Link to comment Share on other sites More sharing options...
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