LOS-EFI

LCARS - Library Computer Access Retrieval System

LCARS is based on the idea from the TV show Star Trek - Next Generation. Those panels you see on the bridge of the enterprise are known as LCARS displays. Others have attempted to make this, but they made a shell over windows or Linux. Mine is FROM SCRATCH, thus not using a linux kernel or anything related to MS Windows.

NOTE : I make NO MONEY on this project. YES, I'm talking to you CBS ! So you can't sue me or force a take down !

BIG THANK YOU TO THE FOLLOWING PEOPLE WHO HELPED ME TO MAKE THIS OS POSSIBLE

- ANGEL  
- QUESO  
- JESTERJUNK  
- STRYKER  
- AND ALL OF MY YOUTUBE SUBSCRIBERS  

This Operating System is in development using the EFI as the boot loader.

UPDATED : Fixed GDT code to finally work with GCC 13.2. You can now use the GCC from the link below. Although I use -std=c17, you can use -std=c11 and -std=c2x. However -std=c99 still fails.
Using GCC 13.2 from this link.
https://nuwen.net/mingw.html

OSFMount
https://www.osforensics.com/tools/mount-disk-images.html

QEMU
https://www.qemu.org/

NOTE 1 : All three of the above programs are in my windows path. You can do a search on how to do that.

NOTE 2 : Do to the folks who like to cause problems for other youtubers, I am showing my OFFICIAL youtube channel here. Do NOT trust the scammers who pretend to be me !
https://www.youtube.com/@ThatOSDev/videos

** IMPLEMENTED EFI **

* EFI Text
* EFI Keyboard
* EFI Graphics (GOP)
* EFI Rectangle and Line Drawing
* EFI Display Screen Resolutions
* EFI Based BMP Image Loading - Displays my own Wallpaper now
* EFI RSDP
* EFI TPL Timing
* EFI Delay - Microseconds
* EFI Based PRINTF with Variadic Functions
* EFI File Loading and executing  

** IMPLEMENTED LOADER / KERNEL **

* Basic Graphics  
* A Basic home-brew FONT so I can test with. (I want to eventually load a TTF.)  
* A Basic Print. (NOTE : I will be updating this later to printf using Variadic Functions.)
* GDT loaded from BOOTX64.EFI. But seems to be working. Will know more once paging begins.  
* MMap seems to be working now. We can total up conventional memory.  
* Bitmap manipulation is working.  

** TO BE ADDED **

* Paging  
* Mouse & Gesture ( Touch Screen ) support
* FNT - Bitmap Font File
* TTF - True Type Font
* Reading Raw Sectors from Drive  
* Writing Raw Sectors to Drive  
* Format and Partition drive with the EFI Environment  
* Operating System Installation with just the EFI Environment  
* Text Editor  
* Assembler  
* Networking  
* Blutooth  
* Simple Web Browser  
* Getting some sort of C compiler into the OS