This is cool, but looks like you made it just for you: it only works if the buffer is named "os.asm" and it cd's to a hardcoded path on your harddrive.
This shows what people mean when they say Emacs is easy to extend. I don’t think most popular editors will let you code an extension like this in 167 lines including all boilerplate, comments, and documentation.
This is amazing! I have been using Emacs for development for well over a year and things like this remind me of the incredible power Emacs has to offer.
I’ve always wanted this, amazing!! Thanks for making it.
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This is very interesting, as a student, could you make this for vscode?
This looks pretty cool. I've always wished for some kind of "2D REPL" experience with assembler, similar to what we can do in Common Lisp. The closest I've gotten to this was experimenting with SIMD intrinsics with SB-SIMD (an SBCL contrib library that provides tons of additional SIMD support to the compiler backend).
One niche use case I see for this minor mode is possibly learning how to program for microcontrollers with so little RAM that you can probably print each byte on a sheet of paper to debug (i.e. 4KiB of RAM or less)