mboot

mboot is a bootloader for i386 platforms.

Prequisites

Building kmint depends on:

• llvm tools (clang, ld.lld)
• sfdisk
• nasm
• partprobe

These requirements mean you can only fully build the disk image on Linux, I will swap out the missing tools for mac-friendly ones soon.

Running kmint needs:

• the building tools or a disk image
• qemu-system-x86_64

Building

make
qemu-system-x86_64 -m 4G -drive file=image.img -serial stdio

Note

As filesystems and elf files aren't implemented yet, programs you want to launch from mboot need to be linked into it and called from loader.c

todo:

• 32 bit protected mode
• cpu exceptions
• individual hardware interrupts
• a ps/2 keyboard
• vga in 320x200x8bpp
• reading ata drives
• rs232 interfaces
• the intel 8259 PIC
• the intel 8253 PIT
• the mbr partitioning scheme
• wad files as the filesystem
• enable x87 fpu
• better filesystem
• memory allocator
• elf loader
• paging
• libc