x86 Bare Metal Examples

Minimal operating systems to learn low level programming.

1. Getting started
2. About
3. Examples
   1. printf
   2. min
   3. No ld script
   4. BIOS
      1. putc
      2. hello world
         1. NASM
      3. newline
      4. carriage return
      5. cursor position
      6. color
      7. background
      8. scroll
         1. clear screen
      9. pixel
         1. pixel line
      10. keyboard
          1. keyboard loop
      11. disk load
          1. disk load 2
      12. detect memory
   5. Initial state
   6. reboot
   7. Not testable in userland
      1. Segment registers
         1. SS
         2. CS
      2. Interrupt
         1. int $1
         2. Interrupt zero divide
         3. Interrupt loop
      3. in
         1. in keyboard
         2. in RTC
         3. in PIT
         4. in beep
         5. in beep_illinois
         6. in mouse (TODO)
      4. Protected mode
         1. Segment base (TODO)
         2. IDT
            1. IDT 1
            2. IDT zero divide
            3. Maskable
            4. IDT PIT
         3. Segmentation fault handler: memory bound, ring, RWX violations
         4. Paging
            1. Page fault
   8. APM
      1. APM shutdown
      2. APM shutdown 2
   9. SMP TODO
      1. source
      2. information
   10. Multiboot
   11. GRUB
   12. TODO not working
       1. UEFI
   13. Misc
       1. hajji
4. Tests
   1. PRINT_BYTES
5. Theory
   1. Modes of operation
      1. Segmentation
   2. Formats
      1. MBR
   3. IO
      1. BIOS
      2. APM
   4. PIC
   5. Debug
   6. Bibliography
6. TODO