Bananymous
dfe5a2d665
All: Cleanup all files
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Add newline to end of files and remove whitespace from end of lines
2024-01-24 15:53:38 +02:00
Bananymous
7e36a0be75
Bootloader: Add .data section
2024-01-12 19:27:36 +02:00
Bananymous
ff2486f58c
Bootloader: Try to enable A20 line if it is disabled
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VirtualBox seems to have A20 disabled by default
2024-01-12 02:55:06 +02:00
Bananymous
2fec718590
Bootloader: cleanup code
2024-01-08 10:50:55 +02:00
Bananymous
ccaa159a73
Bootloader: Add support for ext2 blocks up to 4 KiB
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This should work with blocks bigger than that, but my linux system
only supports up to 4 KiB, so I cannot test this.
This allows getting rid of forced block size in mkfs and let the
program select appropriately sized blocks.
2024-01-03 18:26:03 +02:00
Bananymous
7356a83a44
Bootloader: Optimize some unnecessary branches on carry add/sub
2024-01-03 17:05:33 +02:00
Bananymous
2a68df81e2
Bootloader: Fix bootloader on bochs
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Bochs int 0x10 seems to scrap full ebp and top bits in some
registers. I now save all 32-bit registers on call frame. Also
ebp is across all int 0x10 calls.
2024-01-03 13:09:55 +02:00
Bananymous
50ca2ac09e
Bootloader: Interpret 0x7F (DEL) as backspace
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This allows backspace to work over qemu's serial connection
2024-01-03 11:58:50 +02:00
Bananymous
3f3e81fcf2
Bootloader: Align boot information passed to kernel
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UBSAN found this bug
2023-12-14 10:52:51 +02:00
Bananymous
abc69fa3d5
Bootloader: Search framebuffer information from kernel memory
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Framebuffer information is no longer hard coded into bootloader.
Kernel can define framebuffer info structure in its memory which is
used for finding proper video mode.
2023-12-09 17:32:10 +02:00
Bananymous
8b01e2d4a2
Bootloader: Generalize framebuffer video mode search
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Framebuffer size is now taken as arguments to vesa_find_video_mode
2023-12-09 16:48:04 +02:00
Bananymous
25485069e6
Bootloader: Add cache to ext2 inode data block indices
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This reduces the number of read calls with current kernel size from
~1700 to ~700 (60% performance boots). Loading the kernel is now alot
faster.
2023-11-22 13:54:53 +02:00
Bananymous
f80bd040c8
Bootloader: add missing size directive
2023-11-21 19:11:48 +02:00
Bananymous
cd646a1ab7
Bootloader do some directory restructuring
2023-11-18 13:59:45 +02:00
Bananymous