Just messing around and trying to see if I still remember how to create a simple 8-bit processor from scratch. The schedule for this project is "whenever I get 5 minutes to add another component". The design is ad-hoc (fancy words for "barely organized"). I am not really worried about using the best solutions, I am just having fun trying to actually get it done at some point.
Created:
May 22, 2019
Updated:
Jun 30, 2023
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I have been working on documenting instructions, flags, bitcodes, etc. before I proceed any further. I will see about putting the document online somewhere, and when that is done I will add the link here.
Had a "d'oh" moment when I finally realized I could change the bit width of gates, mux and demux, etc. I should probably have learned a little about the tool I am using before I started using it. Oh well, I can make it pretty(er) later.
I am putting together the Data Path. I am setting up all the mux and control signals, but the stack is completely missing. I am still deciding whether to use a memory component, or to use my own 8 bit registers. I will probably use registers to keep the design consistent. As for the RAM, I am using a memory component for that - I feel it is "ok" since it is an external part.
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