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https://github.com/eersoy93/e93

My hobby operating system for old PCs.
https://github.com/eersoy93/e93

86box assembly c hobby hobby-os hobby-project monolithickernel operating-system os osdev qemu

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My hobby operating system for old PCs.

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README 

        
# E93



Erdem Ersoy's (eersoy93's) hobby operating system for old PCs.



## Building and Running



In [Pardus 23](https://www.pardus.org.tr/) or Debian 12 or Linux Mint 21.3, clone this repository. After that, install GCC x86 cross compiler, NASM and QEMU:



`sudo apt install build-essential nasm qemu-system-x86 gcc-i686-linux-gnu xorriso`



After that, move to the src directory:



`cd src`



After that, build the OS:



`make iso`



After building, you can run:



`make run`



## Studying TODOs



- [X] Finish studying [os-tutorial](https://github.com/cfenollosa/os-tutorial). (0.0.x)

- [X] Finish studying [The Little Book About OS Development](https://littleosbook.github.io/). (0.1.x)



## ROADMAP



### 0.3.0



- [ ] Make initial Windows mode. 



### 0.2.x



- [X] Add/Improve device drivers and implementations to the C library as much as possible.



### 0.2.0



- [X] Restructure the OS.



### 0.1.x



- [X] Add/Improve device drivers and implementations to the C library as much as possible.



### 0.1.0



- [X] Rewrite the bootloader with [The Little Book About OS Development](https://littleosbook.github.io/).



## References



- [The Little Book About OS Development](https://littleosbook.github.io/)

- [GRUB 0.97 stage2_eltorito Binary File](https://github.com/pasandevin/carbonOS/blob/setup_booting_os/stage2_eltorito)

- [cfenollosa's OS Tutorial](https://github.com/cfenollosa/os-tutorial)

- [OSDev Wiki PC Speaker Page](https://wiki.osdev.org/PC_Speaker)

- [OSDev Wiki Color/Monochrome Monitors Page](https://wiki.osdev.org/Detecting_Colour_and_Monochrome_Monitors)

- [OSDev Wiki Text Mode Cursor Page](https://wiki.osdev.org/Text_Mode_Cursor)

- [OSDev Wiki PCI Page](https://wiki.osdev.org/PCI)

- [OSDev Wiki PCI IDE Controller Page](https://wiki.osdev.org/PCI_IDE_Controller)

- [OSDev Wiki Inline Assembly/Examples](https://wiki.osdev.org/Inline_Assembly/Examples)

- [New OSDev Wiki IS09660 File System](https://osdev.wiki/wiki/ISO_9660)

- [OSDev Forum of Keydown and Keyup Events](https://forum.osdev.org/viewtopic.php?t=9761)

- [x86 and amd64 Instruction Reference](https://www.felixcloutier.com/x86/index.html)

- [VGA Color Palettes](https://www.fountainware.com/EXPL/vga_color_palettes.htm)

- [VGA Text Mode (Wikipedia)](https://en.wikipedia.org/wiki/VGA_text_mode)

- [Device Hunt](https://devicehunt.com/)

- [The PCI ID Repository](https://pci-ids.ucw.cz/)

- [RapidTables ASCII Table](https://www.rapidtables.com/code/text/ascii-table.html)

- [Pardus's Calculator :)](https://apps.pardus.org.tr/app/gnome-calculator)



### Win32 References



- [Win32 Data Types](https://learn.microsoft.com/en-us/windows/win32/winprog/windows-data-types)

- [Win32 Data Types for Strings](https://learn.microsoft.com/en-us/windows/win32/intl/windows-data-types-for-strings)



**NOTE:** Also I have being used GitHub Copilot and ChatGPT but I don't directly use code completions.



## Copyright and License



Copyright (c) 2022-2024 Erdem Ersoy (eersoy93).



Licensed with MIT License. See LICENSE file for details.



**NOTE:** bin/stage2_eltorito, shell/mb_header.h and shell/mb_info.h is GNU GPLv2 licensed because GNU GRUB 0.97 is licensed with GNU GPLv2.



**NOTE 2:** The copyright of GNU GRUB 0.97 (from https://www.gnu.org/software/grub/):



    Copyright © 2010-2018 Free Software Foundation, Inc.



    Copyright © 1999,2000,2001,2002,2003,2004,2005,2006 Yoshinori K. Okuji