codyd51

10 ms·

1. 61.▲
   by codyd51 3y ago

   Hi HN, author here! This post is ostensibly about some tooling I’ve written to help me write posts that contain lots of code, while ensuring that the code always produces a valid source tree which matches up with where we are in the prose.
2. 62.▲
   Writing about writing about programming(axleos.com)

   67 points by codyd51 3y ago|9 comments
3. 63.▲
   by codyd51 3y ago

   Thank you! Indeed, more than once over the course of introducing this new PMM I felt a sense of desperation as bugs surfaced due to an “I don’t know what I changed” change. Often, the answer is “nothing special”, and extremely minor pieces
4. 64.▲
   by codyd51 3y ago

   Hi, author here! Haha, yes, you’ve summed it up pretty well. I was unsure whether to write this post as, in one sense, it’s detective work in which I’m the investigator, and a slightly younger and more sloppy version of myself is the culpri
5. 65.▲
   by codyd51 3y ago

   One thing I just realised it's worthwhile to show: the POSIX interfaces I mentioned above are just wrappers around message-passing. For example, read() is a function implemented in an optional userspace library that's available fo
6. 66.▲
   by codyd51 3y ago

   Thanks a lot, and it's really great to hear that you're interested in reading a full PPU writeup! This is the first time these posts have been in the public eye, so it's really encouraging for me. I'd definitely like to
7. 67.▲
   by codyd51 3y ago

   axle is definitely one of my main hobbies, and since it's important to me I try to find time to work on it! Often, what happens is that I'll get really passionate about some thing or another (like the GameBoy emulator!) for a few
8. 68.▲
   by codyd51 3y ago

   Thank you! I didn't know anything about working with bare metal when I started out, and relied on the OSDev Wiki and other online resources. The work of those early years isn't as mature as now, but I learned a lot. Later on, I gr
9. 69.▲
   by codyd51 3y ago

   Unix-like is definitely a misnomer, and I've gone ahead and removed it from the home page. It might've been true many years ago, but it's no longer the case. axle is fundamentally organised around structured messages. This me
10. 70.▲
    by codyd51 3y ago

    Hi, author here! Thanks for the kind words! I'll echo rajeevk's recommendation: the OSDev wiki is full of useful documentation and guides for setting up a bare-metal toolchain. There's also a community forum with a wealth of
11. 71.▲
    by codyd51 3y ago

    Hi HN, author here! The GameBoy emulator written up in this post runs on axle, which is a message-passing microkernel-based OS I’ve been working on for a very long time. dang suggested that I put together a Show HN for axle, which I’d love
12. 72.▲
    I wrote a GameBoy emulator for my hobby OS (2022)(axleos.com)

    282 points by codyd51 3y ago|41 comments
13. 73.▲
    by codyd51 4y ago

    Data Theorem | Python Backend / Automation Engineer | Remote from London, UK area | Full-time | https://www.datatheorem.com/careers/ Data Theorem is a leading application security provider, offering continuous and
14. 74.▲
    by codyd51 4y ago

    Might be of interest to folks in this thread: I wrote about the GameBoy boot ROM here: https://axleos.com/writing-axles-gameboy-emulator/
15. 75.▲
    I wrote a GameBoy emulator for my hobby OS(axleos.com)

    2 points by codyd51 4y ago|0 comments
16. 76.▲
    Running Axle on Multiple CPUs(axleos.com)

    2 points by codyd51 4y ago|0 comments
17. 77.▲
    Running axle on multiple CPUs(axleos.com)

    1 points by codyd51 4y ago|0 comments
18. 78.▲
    Writing axle's GameBoy emulator(axleos.com)

    2 points by codyd51 4y ago|0 comments
19. 79.▲
    by codyd51 4y ago

    Data Theorem | Python Backend / Automation Engineer | Remote from London, UK area | Full-time | https://www.datatheorem.com/careers/ Data Theorem is a leading application security provider, offering continuous and
20. 80.▲
    by codyd51 4y ago

    Data Theorem | Python Backend / Automation Engineer | Remote from London, UK area | Full-time | https://www.datatheorem.com/careers/ Data Theorem is a leading application security provider, offering continuous and
21. 81.▲
    by codyd51 4y ago

    There are indeed exceptions when running a program. Exceptions, as a construct, are baked in at the hardware level. When a program page faults, or tries to divide by zero, or runs an invalid opcode, the CPU will jump to an exception handler
22. 82.▲
    by codyd51 8y ago

    What is ‘g’ in this context?
23. 83.▲
    by codyd51 8y ago

    It sounds like you’re talking about a MacBook Air as a generic MacBook, whereas in fact the MacBook is it’s own distinct line of computer, debuted in 2015. It indeed does not contain fans.