MAJOR RESTRUCTURE

TODO

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+=== Todo ===
+
+Legend:
+- [ ] Not done
+- [x] Done
+- [_] Was done at some point, but isn't now
+- [!] Important todo
+- [?] Optional
+
+- [ ] Refactoring
+    - [ ] Use UEFI
+    - [ ] Use an existing bootloader
+    - [x] libc - User space
+    - [x] libk - Kernel libc
+    - [x] Kernel rewrite
+    - [ ] Better filesystem
+    - [x] Makefile refactorin' (finally done!!!)
+
+- [ ] LIBC
+    - [ ] assert.h
+    - [ ] complex.h (idk why we would need this)
+    - [x] ctype.h
+    - [x] errno.h
+    - [x] fcntl.h
+    - [x] float.h
+    - [x] limits.h
+    - [x] math.h (maybe a separate libm?) TODO: add errno errors in there
+    - [x] setjmp.h (this plagues my mind)
+    - [ ] signal.h (we would need signals first)
+    - [x] stdarg.h
+    - [x] stdbool.h
+    - [x] stddef.h
+    - [x] stdint.h
+    - [x] stdio.h
+    - [x] stdlib.h
+    - [x] string.h
+    - [x] syscall.h
+    - [x] time.h
+    - [ ] unistd.h (do we do POSIX?)
+    - [ ] wchar.h (we would need text support for wide chars ig?)
+    - [ ] wctype.h (same as above)
+    - [ ] sys/
+        - [ ] types.h (syscall types)
+        - [ ] gfx.h (basic graphics lib)
+
+- [x] LIBK
+    - [x] drivers - everything that works with hardware
+    - [x] error - error handling (bigerr is not enough :( )
+    - [x] fs - filesystem 
+    - [x] interrupt - handling and registering interupts
+    - [x] memory - memory managing (physical and virtual)
+    - [x] screen - everything that displays on the screen
+    - [x] syscall - system calls
+
+- [x] Multistage Bootloader
+- [x] Bootloader reads filesystem to find files
+- [x] The almighty 'printf()'
+- [x] Write down where stuff is in memory (in notes.txt)
+
+- [ ] "Text" mode (not actually)
+    - [x] Scrolling
+    - [ ] Scroll-back
+    - [x] Color codes (and just multicolor text in general)
+    - [x] Controll sequences!
+    - [x] VESA BIOS Extensions
+    - [x] Better resolution
+    - [x] Graphics mode
+    - [x] Custom font
+    - [_] Larger text size
+    - [ ] Variable text size :)
+    - [x] Make output overflow go to next line
+    - [x] More fonts
+    - [x] Generic screen.h stuff (don't assume 1920x1080 32bpp)
+    - [x] Multi vbe mode support
+    - [x] Setup on boot
+    - [ ] Different font size support
+
+- [x] Math
+    - [x] Trigonometry
+        - [x] Sine
+        - [x] Cosine
+        - [x] Tangent
+        - [x] Cotangent
+        - [x] Arc (inverse) versions
+        - [x] Hyperbolic versions
+    - [x] Absolute value
+    - [?] isOdd() 🗿
+    - [x] Exponential fn (e^x)
+    - [x] Logarithm
+    - [x] Power
+    - [x] Square Root
+    - [x] Floor
+    - [x] Round
+    - [x] Ceiling
+    - [x] Sign
+    - [x] INFINITY
+    - [x] NAN
+    - [x] E (eulers number)
+    - [x] PI
+
+- [ ] Filesystem
+    - [x] Utility for filesystem building (not just an assembly file)
+    - [x] Better header for file i/o (disk/filesys.h)
+    - [x] Filetable
+    - [x] A better filesystem using INodes etc.
+    - [x] Files
+        - [x] Larger than one sector (512B)
+        - [x] Any file size (Not multiples of 512B)
+        - [x] Filetypes
+    - [ ] Directories
+        - [x] File tree
+        - [x] Dir Entries
+        - [ ] cd command
+    - [ ] Links??
+        - [ ] Symbolic
+        - [ ] Hard
+
+- [ ] System Calls
+    - [x] Sleep()
+    - [x] Write()
+    - [x] Read() 
+    - [x] Open()
+    - [x] Close()
+    - [x] Malloc()
+    - [x] Free()
+    - [x] Seek()
+    - [ ] Tell()
+    - [ ] Exit()
+
+- [ ] Shell
+    - [ ] Separate file/program
+    - [ ] ';' separated commands
+    - [ ] I/O Redirection with '<' '>'
+    - [x] Display directory in prompt
+    - [ ] Custom prompts
+    - [ ] Variables
+        - [ ] Enviromental/Global
+        - [ ] Normal
+    - [ ] Commands
+        - [x] echo
+        - [x] clear
+        - [x] help
+        - [x] ls
+        - [x] exit
+        - [ ] touch (make file)
+        - [ ] rm
+        - [ ] mkdir (add dirs first)
+        - [x] reboot
+        - [ ] cd
+
+- [ ] Standard I/O stuff
+    - [ ] stdin
+    - [x] stdout
+    - [ ] stderr
+
+- [ ] User (or system) programs
+    - [x] Loading them
+    - [_] Running them
+    - [x] Exit back to kernel/shell
+    - [x] Let them use libs
+    - [x] Proper include files (LibC?)
+    - [x] argc, argv[]
+
+- [ ] Userspace programs
+    - [ ] Shell
+    - [x] Calculator
+    - [ ] Calendar
+
+- [ ] Code Editor
+    - [ ] Text editor
+    - [ ] Syntax highlighting
+    - [ ] Saving/Loading
+    - [ ] Hex editor
+
+- [ ] Assembler/Compiler
+    - [ ] Assembler
+    - [ ] Compiler (probably C)
+    - [ ] Standard lib
+
+- [ ] Finish all todos
+- [ ] Refactoring!!!
+- [ ] Can it run DOOM?
+- [ ] Games
+    - [ ] Minesweeper
+    - [ ] Solitaire
+    - [ ] Tetris
+
+- [ ] Write an OS in kern (The FINAL Todo)
+