Building a Debugger is now officially released!
It guides you through writing a whole native x64 debugger from scratch, dispelling all the magic and teaching you a ton about operating systems as it goes.
Even if you don't care about writing a debugger, you can read it to your cat.
my new video is out!
this one is a lot more personal than my usual stuff, but I've felt a need to express this for a long time
Generative AI is a Parasitic Cancer
https://www.youtube.com/watch?v=-opBifFfsMY
@domi Oh, you haven't seen anything yet. Don't even get me started on what they do with the Nintendo DS 🙃
@domi Yeah that might be it. The entire thing is a bit unstable anyway, so if you're not using the default tools, then it's likely the issue
@domi Hm, not that I know of, no. Perhaps your Luma3DS or devkitARM is outdated? I'm not a gdb expert though, I'm just happy that it works on my machine 😅
@domi Agree. It's not too bad though if you set Luma up to boot into Homebrew Menu, so that you can retry faster. Btw, for gdb you can read this: https://gist.github.com/LiquidFenrir/d110f3e7755ffbe82672eda49ae21af2
You can even load the elf in IDA and debug it remotely, that can be pretty annoying to set up though
@domi Ah ok. If you need a 3DS emulator with accurate DSP emulation btw, which also lends itself well to debugging, look into Corgi3DS. The code isn't the best and it does take some tinkering to get it to work, but it can be pretty powerful for debugging things. Otherwise yeah, use real hardware with 3dslink
@domi
You were trying to hack on an "audio thing"? Was it perhaps related to the DSP?
While reversing ARM I came across something weird. There are instructions like "LDRBCS", so load a byte into register if carry set. But for some reason I could only assemble them using LLVM, not GNU-AS. Even though even objdump knew them.
Turns out, GNU-AS wants "LDRCSB", unless you specify ".syntax unified".
What??
Looked through my university's e-waste today and found a curious looking box containing:
