chinazi-dictatorship

Ciro Santilli bdcdf02aee Use a common.o file to factor out globals		9 lat temu
grub	d4aae6183b Failed attempt at modifying a segment descriptor, split GDB to separate file	9 lat temu
hajji	48614b45fa Document hajji working	9 lat temu
intel-startup	bd0424f001 Failed smp attempt started	9 lat temu
multiboot	d4aae6183b Failed attempt at modifying a segment descriptor, split GDB to separate file	9 lat temu
nasm	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
no-linker-script	a8d90ac777 Make osdev example more uniform with the hello world	9 lat temu
printf	a8d90ac777 Make osdev example more uniform with the hello world	9 lat temu
uefi	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
.gitignore	b9b4da0d1e initial_state.S stopped working...	9 lat temu
Makefile	bdcdf02aee Use a common.o file to factor out globals	9 lat temu
README.md	881300bd22 Simple protected mode PIT works	9 lat temu
TODO.md	1e87cda4c0 PIT protected handles interrupts more correctly	9 lat temu
about.md	9a24f92f36 Fix BEGIN 0x to %ax	9 lat temu
apm.md	a44b659299 bios keyboard	9 lat temu
apm_shutdown.S	61f0ad8dda Remove END	9 lat temu
apm_shutdown2.S	61f0ad8dda Remove END	9 lat temu
bibliography.md	bd0424f001 Failed smp attempt started	9 lat temu
bios.md	b16e42ffe3 SMP works on qemu 2.3.0 but no delays yet, so likely to fail on real hardware	9 lat temu
bios_background.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
bios_carriage_return.S	b16e42ffe3 SMP works on qemu 2.3.0 but no delays yet, so likely to fail on real hardware	9 lat temu
bios_clear_screen.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
bios_color.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
bios_cursor_position.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
bios_detect_memory.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
bios_disk_load.S	24988411ad Make page setup into a function	9 lat temu
bios_disk_load2.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
bios_hello_world.S	61f0ad8dda Remove END	9 lat temu
bios_keyboard.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
bios_keyboard_loop.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
bios_newline.S	b16e42ffe3 SMP works on qemu 2.3.0 but no delays yet, so likely to fail on real hardware	9 lat temu
bios_pixel.S	61f0ad8dda Remove END	9 lat temu
bios_pixel_line.S	61f0ad8dda Remove END	9 lat temu
bios_putc.S	bd0424f001 Failed smp attempt started	9 lat temu
bios_scroll.S	b16e42ffe3 SMP works on qemu 2.3.0 but no delays yet, so likely to fail on real hardware	9 lat temu
bios_tick_count.S	d1f11492c2 DRY out PIT and make one that fires only once, get nsectors from linker script	9 lat temu
common.S	bdcdf02aee Use a common.o file to factor out globals	9 lat temu
common.h	bdcdf02aee Use a common.o file to factor out globals	9 lat temu
cs.S	aaaea79a6f Refactor print_hex	9 lat temu
debug.md	9e58c1dc65 idt	9 lat temu
formats.md	d217b180be Split up README	9 lat temu
gdb.gdb	b16e42ffe3 SMP works on qemu 2.3.0 but no delays yet, so likely to fail on real hardware	9 lat temu
getting-started.md	24988411ad Make page setup into a function	9 lat temu
idt.S	bd0424f001 Failed smp attempt started	9 lat temu
idt1.S	1f6af90212 Page fault handler works!	9 lat temu
idt_zero_divide.S	1f6af90212 Page fault handler works!	9 lat temu
in.md	bd0424f001 Failed smp attempt started	9 lat temu
in_beep.S	61f0ad8dda Remove END	9 lat temu
in_beep_illinois.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
in_keyboard.S	bd0424f001 Failed smp attempt started	9 lat temu
in_mouse.S	61f0ad8dda Remove END	9 lat temu
infinite_loop.S	61f0ad8dda Remove END	9 lat temu
initial_state.S	b16e42ffe3 SMP works on qemu 2.3.0 but no delays yet, so likely to fail on real hardware	9 lat temu
interrupt.S	1f6af90212 Page fault handler works!	9 lat temu
interrupt1.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
interrupt_keyboard.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
interrupt_loop.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
interrupt_zero_divide.S	9e58c1dc65 idt	9 lat temu
io.md	a44b659299 bios keyboard	9 lat temu
lidt.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
linker.ld	bdcdf02aee Use a common.o file to factor out globals	9 lat temu
mbr.md	25235ad9ba Keyboard input, hex printer	9 lat temu
min.S	61f0ad8dda Remove END	9 lat temu
modes-of-operation.md	b16e42ffe3 SMP works on qemu 2.3.0 but no delays yet, so likely to fail on real hardware	9 lat temu
not-testable-in-userland.md	01a5e64efa Segment registers	9 lat temu
page_fault.S	1e87cda4c0 PIT protected handles interrupts more correctly	9 lat temu
paging.S	1f6af90212 Page fault handler works!	9 lat temu
pic.md	bd0424f001 Failed smp attempt started	9 lat temu
pit.S	9a33f2a5c7 pit sleep works	9 lat temu
pit_once.S	d1f11492c2 DRY out PIT and make one that fires only once, get nsectors from linker script	9 lat temu
pit_protected.S	9a33f2a5c7 pit sleep works	9 lat temu
protected_mode.S	2b83197f39 Paging works!!!	9 lat temu
reboot.S	61f0ad8dda Remove END	9 lat temu
rtc.S	881300bd22 Simple protected mode PIT works	9 lat temu
segment_base.S	2b83197f39 Paging works!!!	9 lat temu
segment_registers.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
segmentation.md	d4aae6183b Failed attempt at modifying a segment descriptor, split GDB to separate file	9 lat temu
smp.S	d1f11492c2 DRY out PIT and make one that fires only once, get nsectors from linker script	9 lat temu
smp.md	d1f11492c2 DRY out PIT and make one that fires only once, get nsectors from linker script	9 lat temu
ss.S	aaaea79a6f Refactor print_hex	9 lat temu
template.S	71e104bab0 Uniformized macros: push save all registers, and use only GAS macros, no CPP	9 lat temu
test_pit_sleep.S	bdcdf02aee Use a common.o file to factor out globals	9 lat temu
test_print_bytes.S	1f6af90212 Page fault handler works!	9 lat temu
test_vga_print_bytes.S	1f6af90212 Page fault handler works!	9 lat temu

x86 Bare Metal Examples

Minimal operating systems to learn low level programming.

Getting started
About
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
  13. tick count
5. Initial state
6. reboot
7. Not testable in userland
  1. Segment registers
    1. SS
    2. CS
  2. Interrupt
  3. in
    1. in keyboard
    2. RTC
    3. PIT
      1. PIT once
    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. IDT PIT
    3. PIT protected
    4. Segmentation fault handler: memory bound, ring, RWX violations
    5. 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
Tests
1. PRINT_BYTES
Theory
1. Modes of operation
  1. Segmentation
2. Formats
  1. MBR
3. IO
  1. BIOS
  2. APM
4. PIC
5. Debug
6. Bibliography
TODO

README.md

x86 Bare Metal Examples