d5f996973c
Removed errant comment that isnt really applicable anymore
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Just cleanup before some work
2025-07-02 14:48:25 -04:00
4899877cec
Changed I/O to be more generic.
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instead of stuffing all of the i/o stuff into the "kio" library, i've
decided to rework i/o to be a generic handler that takes in a function
pointer for putc, and does the rest of the logic onto that pointer.
That way, you can pass any function that can take in characters and move
them to buffers.
I'll do a writeup on this at some point to document it.
2025-06-29 01:13:43 -04:00
55d5823bde
Added tons of documentation
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Still need to document a lot of functions, but I cleaned up and
explained a lot of the code via comments.
2025-06-28 02:11:09 -04:00
4c76d5647a
Fixed interrupt handler bug
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Table was wrong. Oops. Pointer math got me.
2025-06-28 01:35:35 -04:00
561c7f9fa7
Loaded IDT!
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Many code changes, many undocumented. Documentation and cleanup is next.
Fixed a lot of bugs related to IDT structure. Changed the IDT paradigm
to be dynamically written isntead of statically to account for nobits on
that section.
Also added a gdb remote debugger automatic script, for simplicity in
debugging.
2025-06-28 00:14:42 -04:00
fbef354410
Small IDT work, gotta go hiking lol
2025-06-17 20:13:09 -04:00
8c51b7010e
Interrupt Descriptors implemented
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Now just need to populate the IDT, then debug the whole thing.
2025-06-16 22:40:02 -04:00
623b9e339f
Removing the tables header. Moving its contents to table headers.
2025-06-16 00:52:05 -04:00
d32c1fab63
dude PLEASE i dont want to implement ISRs dude PLEASEEEEE
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I did set up all of the stuff around it tho. Gotta implement some
handlers.
2025-06-12 01:19:59 -04:00
3b2503a187
Updated the readme for better usage.
2025-06-11 00:39:51 -04:00
978fd36490
Definitely plan on using more assembly for... assorted assembly related
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tasks, so I'm doing some housekeeping.
gdt structure and related pointers go to gdt.structure.
multiboot magic numbers go into multiboot.s.
main code routine goes to start.s for bootstrapping C.
2025-06-11 00:27:15 -04:00
8fadee6baf
They're calling him "mr has a working custom GDT"
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...
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...I'm sorry they don't call me that.
2025-06-10 23:58:28 -04:00
b127a659bb
This underwent some crazy scope creep. Just one more feature...
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- Changed primary assembler to NASM. Specifically so I could use -
- Swapped start.s to intel syntax. I find it prettier. Learned a lot
doing it tbh.
- Changed the name of the multiboot structures in C.
2025-06-10 23:41:51 -04:00
d97ec36f8c
Half-baked commit, but i added a struct type for the tss and allocated
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some memory for it in bss. Also put some space in for the gdt in rodata.
Need to leave now, so this broken build goes to the repo!
2025-06-10 09:17:21 -04:00
295e622fe1
Moved the kernel to the 1MB boundary in the linker script. Also did some
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stuff with ccls for language server stuff.
2025-06-09 18:27:55 -04:00
745cf9045c
Moved multiboot structs to kmultiboot.h
2025-06-08 22:44:17 -04:00
8734cd4da6
Added some functions, did some reorganizing.
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kttools.h/c is a lib for converting types (only currently contains
i_to_str).
Also added a printf for i/o.
2025-06-08 16:18:06 -04:00
e8a6c514ad
kernel tools split into kio (for i/o) and kttools (kernel type tools).
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in general, kernel libraries will be marked with "k" in the beginning.
2025-06-08 01:27:41 -04:00
f39627ec51
Forgot to commit some gitignore changes, here.
2025-06-07 18:08:37 -04:00
5efb8d9fbc
Moved i/o content to kerno.c
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Added function for integer -> string (library pending)
Modified makefile to reflect use of include/ dir
2025-05-28 23:19:50 -04:00
5dd086565f
Forgot to link libgcc. oops. That'll do.
2025-05-26 23:25:30 -04:00
7500299684
Refactoring of makefiles is here. Looks like a bit less of a mess,
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thankfully.
Also now using `ld` and `as` instead of `gcc` for everything. Seems to
work OK for now - but may bite on the ass later. We'll see!
2025-05-26 22:42:41 -04:00
6423dc4610
Makefile is getting a little messy, i'll rework it later, probably.
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Anyway, now:
make iso -> creates iso with bootloader
make run_iso -> runs iso in qemu
make run -> runs kernel without bootloader or img creation
2025-05-26 17:59:56 -04:00
6f0b585bfe
Quick addition to the makefile, run_iso will build the ISO image and
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then run the full image. As opposed to run, which will just run the
kernel from QEMU.
2025-05-26 17:46:55 -04:00
0831fb86e4
Added some framework to create a bootable ISO with grub as the
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bootloader. Eventually the bootloader will be a submodule of this dir -
but for now GRUB works for boot.
2025-05-26 17:42:00 -04:00
1de036ad09
Updated readme.
2025-05-23 01:24:17 -04:00
aa4f5f070b
First content commit. Added sample code hello world with personal
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comments for study
Also made a makefile that can build and run the thing. Current run
method is directly from QEMU - but the makefile will later make an image
with a given bootloader.
2025-05-23 01:18:12 -04:00
4a25828031
Initial commit
2025-05-21 19:22:01 +00:00
