Delete File Command - Amateur OS Dev (x86 asm)
11Adding a delete file command to the shell/kernel
Notes:
I'll probably go through and refactor to use 'movzx' or 'lea' instructions soon-ish. Noticed a couple use cases in this video.
I was pretty tired and had a couple beers during this, apologies for any low audio and mumbling
There is a lot of similar/repeated code in the "delete_file/save_file/load_file.inc" files, I think I'm going to combine all these into a general "file_ops.inc" file or similar to simplify and de-duplicate code. That might be in the next video
Video outline:
0:00 - Add "del filename" command to shell/kernel
2:15 - Create delete_file.inc file
23:42 - Finish call to delete_file in kernel
27:47 - Debugging start
33:23 - Show working delete and explain changes
39:57 - Next up & Outro
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Playlist for this series:
https://www.youtube.com/playlist?list=PLT7NbkyNWaqajsw8Xh7SP9KJwjfpP8TNX
Git repos:
https://git.sr.ht/~queso_fuego/quesos
https://github.com/queso-fuego/amateuros
Software used:
VMware Workstation Player - https://www.vmware.com/products/workstation-player/workstation-player-evaluation.html
openBSD - https://www.openbsd.org/
qemu - https://www.qemu.org/
vim - https://www.vim.org/ (neovim is probably better :p)
fasm - https://flatassembler.net/
fasm docs - https://flatassembler.net/docs.php?article=manual
Contact:
email - fuegoqueso@gmail.com
twitter - @Queso_Fuego
Thoughts/Notes/Suggestions/Other - Drop a message in the video comments, by twitter, or by email
Credits:
Music from https://incompetech.com:
"Your Call" by Kevin MacLeod (https://incompetech.com)
Licence: CC BY (http://creativecommons.org/licenses/by/4.0/)
The blue title tags:
#osdev #programming #x86