Short talk on how I do CPU-side debugging without a debugger using a simple memory mapped file message logging system with lock-free atomic and file-io-free message store: https://www.youtube.com/watch?v=EaUSAVcXwEc ...

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URL: https://x.com/NOTimothyLottes/status/1977570893309321268
Author: NOTimothyLottes (@NOTimothyLottes)
Posted: 2025-10-13 03:03:37

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1/ @NOTimothyLottes

Short talk on how I do CPU-side debugging without a debugger using a simple memory mapped file message logging system with lock-free atomic and file-io-free message store: https://www.youtube.com/watch?v=EaUSAVcXwEc … contains the implementation as well

Branches: 2025-10-13-questorInter-no-floats-ever-logged-or-some-agreement-that-its, 2025-10-17-Karyuutensei-i-watched-the-video-and-one-thing-that-was-not

2/ @AgileJebrim

@NOTimothyLottes

No retries - you should call it wait-free too.

3/ @NOTimothyLottes

@AgileJebrim

Good point, I’m going to adopt that ‘wait-free’ term moving forward :)

type	archive
source	twitter
date	2025-10-13
tags	archive, twitter, notimothylottes
description	Short talk on how I do CPU-side debugging without a debugger using a simple memory mapped file message logging system with lock-free atomic and file-io-free message store: https://www.youtube.com/watch?v=EaUSAVcXwEc ...

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Short talk on how I do CPU-side debugging without a debugger using a simple memory mapped file message logging system with lock-free atomic and file-io-free message store: https://www.youtube.com/watch?v=EaUSAVcXwEc ...

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@NOTimothyLottes I watched the video and one thing that was not clear to me is why is half of the file wasted.

@NOTimothyLottes no floats ever logged? or some "agreement" that it's always multiplied by 100000 or something like that? besides, interesting (low-level) ideas I really like :)