Hi there, I am a self-learner and since I am enjoying the book so much, I thought I'd drop in and check out the forums.
Many of my questions have already been answered in previous posts, so I want to say thanks to all the helpful people on here! My main interest is building actual real-life computers from 74xx series logic, and messing around with classic microprocessors like the 6502 and Z80, but this course has really opened my eyes to HDL and EDA, I never thought simulating circuits could be this fun. If anyone has any good software recommendations for logic design/simulation/testing or knows a good place to score old test equipment I'd love to hear from you. Thanks for reading this, and see ya later.
If you haven't found it yet, check out Logisim. It's a fairly powerful schematic-based digital circuit simulator. I've written a library of 7400 series TTL parts for it, and used them to simulate a Hack-like computer. Email me if you want the library.
Here's what the CPU looks like using my library in Logisim. Note that the chip labeled "ALU2" is a the ALU, also implemented with TTL, but it's too big for a reasonable screen shot.
Thanks for the info, I have experimented with Logisim a bit, but haven't gotten the hang of it yet. I would love to check out that 7400 series library, I'll send you an email. Sorry for the late reply been a busy week, Thanks again and see ya later!