std_logic_vector
diyelectromusicNote to self:
"I do not need to build an AY-3-8910 out of discrete logic chips."
"I do not need to build an AY-3-8910 out of discrete logic chips."
"I do not need to build..."
https://github.com/mengstr/Discrete-AY-3-8910
But how cool would that be!
But I have now published my walk through of part of the AVR emulation of AY-3-8910/8912 devices.
Fascinating stuff.
https://diyelectromusic.com/2026/04/06/ay-3-8912-8910-hardware-emulation/
Greg@diyelectromusic oh shit??
Chip@diyelectromusic I have been having the same intrusive thought, except it’s about building a RISC-V CPU.
@bytex64 Now that would be a /lot/ of logic :)
@diyelectromusic Yes. The biggest thing is all the 32-bit registers. Even if you did RV32E and only had 16 of them, that would be like an entire board on its own. The rest of it would be complex, too, but thinking about it was really instructive for why old CPUs had like 2-4 registers.
@bytex64 After reading about Ben Eater's breadboard CPU I went out and found a copy of Malvino's "Digital Computer Electronics" and have a much greater appreciation for the achievements of those early microprocessor architectures. And more recently, messing around with the TD4 4-bit thing has really helped too. It is so easy to take for granted the layers upon layers upon layers we build upon every day! :)
Linker3000@diyelectromusic Ambitious!
Now GALs, maybe!?
Kirtai 🏳️⚧️