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+--- Forum: Not quite HP Calculators - but related (/forum-8.html)
+--- Thread: RPN calculator on breadboard and logic gates (/thread-21552.html)
RPN calculator on breadboard and logic gates - grbrum - 04-03-2024 07:06 PM
Hello, I came across this video series about creating an 8 bit breadboard computer using simple logic gates.
I wonder if anyone here has tried building a RPN style calculator on a breadboard like this.
I ordered some parts to start learning more about how a computer works and I am interested in trying to emulate how an HP RPN calculator would behave.
https://eater.net/8bit/
https://www.youtube.com/watch?v=HyznrdDSSGM&list=PLowKtXNTBypGqImE405J2565dvjafglHU&pp=iAQB
RE: RPN calculator on breadboard and logic gates - teenix - 04-03-2024 07:47 PM
Excellent choice, strap in for an interesting ride :-)
Check out Rob Weinsteins amazing work with the HP-35.
https://hackaday.com/2022/04/07/remoticon-2021-rob-weinstein-builds-an-hp-35-from-the-patent-up/
https://www.youtube.com/watch?v=IZKi4_BScqc
Here is another build at home serial 8-bit computer using TTL logic gates. It was designed around 1975. The zip file download includes the original article explaining how it works.
http://teenix.org/educ8.html
cheers
Tony