Mastodawn

@sashag That's a really cute girly outfit ^^ #minidragon #homebrewcpu

@dragonminded
Would you mind a pull request or two for the minidragon? They come with derg scritches

If not that's OK then I'll keep it in my fork.
Just wanted to make sure again before I hit send.
I think i got assembler macros review ready. #minidragon #homebrewcpu

Martin's Pipe Dreams @GPN24 May 21

@dragonminded
Would you mind a pull request or two for the minidragon? They come with derg scritches

If not that's OK then I'll keep it in my fork.
Just wanted to make sure again before I hit send.
I think i got assembler macros review ready.
I'm having a lot of fun working through the Jonesforth tutorial and your repo. Could be a viable minimal interactive OS and the minidragon has very good stack support...
Thank you for making a great little computer.
#minidragon #homebrewcpu

Hacker News Mar 18

Write up of my homebrew CPU build

https://willwarren.com/2026/03/12/building-my-own-cpu-part-3-from-simulation-to-hardware/

#HackerNews #homebrewCPU #CPUdesign #techprojects #hardwaredevelopment #DIYelectronics

Building My Own CPU - Part 3: Just Like the Simulations (It Was Not Just Like The Simulations)

The blog of an engineer from Canada

Will Warren

sen Feb 12

@0x0ddc0ffee several of us working on similar ridiculous projects gather on Libera ##homebrewcpu should you ever be interested :) I started mine in 2012 and someday it’ll be done…

sen Nov 11, 2025

Huh, I first committed this code on December 20th, 2012 and never noticed the seemingly-obvious issue with it in the ~13 years since.

Toggling a signal every 40ns results in a 12.5MHz clock, not 25MHz. #homebrewcpu

sen Nov 9, 2025

There we go, a couple days of work later the reworked path for the control store address is done and everything still passes its tests.

Removed 12 chips and added 6 new ones in the process. A few nanoseconds improvement on the propagation time for this signal, half an amp improvement in current draw, and 6 fewer chips, plus the new design is a lot easier to understand for Future Sen and will accommodate the extra inputs I need to finish implementing exceptions. #homebrewcpu

sen Nov 7, 2025

Got stuck on a problem working on my LHC display, so switched gears for a bit to my CPU to clear my head. I'm working on implementing exceptions, but during my last session on that I realized the path that the control store address bits have to go through seemed to get getting excessively complicated, so I made a note to draw it out next time so I understand it better.

Did that, and it's definitely getting complicated and to be too many levels! Need to put some thought into simplifying this to make it easier to understand, improve propagation time (though it's fine the way it is in theory) and reduce the likelihood of problems, before I complexify it even further. #homebrewcpu

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sen Nov 5, 2025

Thanks for the suggestions, all! I get this question in ##homebrewcpu on Libera from time to time and I know how I started learning but not what’s recommended in 2025, so figured I’d ask here.

Fork Level Zero Sep 25, 2025

Homebrew CPU Instruction decode and instruction bus mockup in Digital. 1 byte. First nibble is intended to select the section of the processor. The second nibble is intended to select the subsection. For instance. Address ALU and Add two registers. Includes instruction register.
#homebrewcpu #diy #computers