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Show HN: A DOS-like hobby OS written in Rust and x86 assembly

(github.com)
207 points krustowski | 1 comments | 19 Jun 25 13:38 UTC | HN request time: 0.222s | source

To try it out, simply build the project yourself from source, or use attached bootable ISO image of the system (in Releases on Github) and run it in QEMU.

https://blog.vxn.dev/rou2exos-rusted-edition

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rollcat ◴[19 Jun 25 14:47 UTC] No.44319184[source]▶
Memory-safe language. x86_64, with Arm on the roadmap. Networking stack. Boots from a CD and via multiboot. Your hobby project wipes the floor with DOS.
replies(2): >>44319373 #>>44325055 #
pvg ◴[19 Jun 25 15:08 UTC] No.44319373[source]▶
Whoa there. Gotta run Doom and BASIC to compete with DOS. That is the officially recognized DOS-Kármán line.
replies(5): >>44319916 #>>44321291 #>>44322144 #>>44322257 #>>44327067 #
mycall ◴[19 Jun 25 20:29 UTC] No.44322257[source]▶
also, can't be a dos with the 'dir' command.
replies(2): >>44322310 #>>44323039 #
krustowski ◴[19 Jun 25 20:36 UTC] No.44322310[source]▶
Afaik there is a 'DIR' command in MS-DOS. Anyway, what would be a better command to list a directory? I could think of 'ls' maybe
replies(3): >>44323038 #>>44323324 #>>44327074 #
onre ◴[19 Jun 25 23:02 UTC] No.44323324[source]▶
I would most likely end up with something like this:

  CAT          CATalogue - output the contents of current directory
  RM           to Raster Memory - load contents of named file in framebuffer
  MV           Make Virtual - map the file into memory and output the address
  LS           Load System - attempt to reboot using the named file as the kernel
  CD           Create Directory - self-explanatory
  SH           System Halt - immediately stop all processing
...and so on.
replies(5): >>44323910 #>>44324486 #>>44325306 #>>44326805 #>>44328203 #
1. stuaxo ◴[20 Jun 25 14:45 UTC] No.44328203[source]▶
CAT was on the Amstrad CPC.