@temporal nhexl-mode is a thing and tries to fix bad performance. I've commented on the other question earlier today on r/emacs: https://old.reddit.com/r/emacs/comments/n1g7lv/reverse_engineering_in_emacs/
I use radare2 and considered looking into GNU poke for reverse engineering file formats with a less ad-hoc approach.
@wasamasa Thanks! I forgot about nhexl-mode, quicky installed it back :).
I'll have to look into radare2 and WinDbg at some point - maybe it'll let me avoid the one last use for Visual Studio that I have at work, i.e. debugging things. If I could make either one work with Emacs, I wouldn't have to leave it anymore :D.
@temporal radare2 has weak debugger support, it's much more compelling for everything else, like doing ad-hoc analysis of binary formats. I typically use gdb with gef for the occasional time I practice binary exploitation. Immunity Debugger with mona.py serves the same purpose on Windows.
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