So with the second revision of the DDL4-CPU complete and functional, all my personal objectives have been met with this project. Even thought I did get some coverage from Hackaday.com and Hackster.io , I got very little direct feedback or interaction for the project, so I am wondering where to go from here with the project... thoughts anyone? Bueller? Bueller? Bueller?.......
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Don't worry about feedback, its the same for all projects. Homebrew computer design is a rather solitary thing. I believe the feedback I got while designing my TTL computer could be counted on the fingers of one hand. That doesn't mean a thing, because the proces of writing still helps you organise your thoughts. I get much more out of the TTL chat. Both are important in their own way.
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Haha, you even got the same "AMD2901" suggestion from the exact same guy as I did.
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64 logs on my TTL computer attracted maybe 3 comments total. But it was still worth doing, because for me, forcing myself to write things down helped me find flaws in my thinking.
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Might be worth checking out the forums at anycpu: people there have an interest in novel CPUs, historical CPUs, and learning about CPU architectures. https://anycpu.org/forum/search.php?search_id=newposts
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Hi Dave, I think this project can use a little bit more documentation, especially:
- A block diagram showing the data paths, names of the registers etc. It would preferably have the same layout as your colored pcb's, to make it immediately clear where everything is.
- A "details" section in the project could give a short explanation of the block diagram, and of the instruction set (that is now hiding in one of the logs).
- A description about how you make a program (do you have an assembler or is it done by hand ?) and how to put it in the cpu (you use an Eprom programmer I think ?).
- One or more examples of programs for the cpu. Would be nice to have a picture or video if the program has visible results.
I just realize that my own projects also could use more documentation...
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thanks for the feedback! i have most of that already completed, but was waiting to see what kind of interest there was in the project before proceeding with posting it...
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