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Home / v0.4.0
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felix-20230614-274.zip 2023-06-14 130.2 kB
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Felix 0.4.0 source code.tar.gz 2023-06-14 23.7 kB
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Felix 0.4.0 source code.zip 2023-06-14 42.2 kB
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README.md 2023-06-14 1.2 kB
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Totals: 4 Items   197.3 kB 0

Bootloader

  • boots (you don't say!)
  • BIOS compatible (also works on UEFI with CSM enabled)
  • Global Descriptor Table loading
  • Unreal Mode switching (to use 32bit addresses in 16bit Real Mode)
  • kernel copying from disk to protected memory
  • 32bit Protected Mode switching
  • kernel jumping

Kernel

  • Interrupt Descriptor Table loading
  • CPU exceptions handler
  • Programmable Interrupt Controller driver
  • keyboard driver
  • ATA disk driver
  • FAT16 filesystem file read
  • timer interrupt driven CPU scheduler
  • prints system call that writes to VGA text buffer
  • task manager
  • round robin CPU scheduler

Shell

Available commands: - help shows available commands - ls lists root directory entries - cat <filename> displays content of a file - test tests CPU scheduler with dummy tasks - run <file> loads file as task and adds it to the task list - ps lists running tasks - rt <id> removes specified task

libfelix (standard library)

  • print! macro able to print formatted text to screen

How to run

Run it in QEMU using qemu-system-i386 -drive file=disk.img,index=0,media=disk,format=raw,if=ide

Source: README.md, updated 2023-06-14