Major reorganization

Some code restructuring

shenanigans

Paging implementation extended Can create new page directories now and map physical address ranges to virtual addresses.

PIC driver implemented

DON'T INTERRUPT ME Interrupts are implemented, code now requires GCC version 7 or higher. Had to add a hack to make new linker work; bss segment is needed separately for whatever reason. Execution hits a double fault, but that is to be expected - we haven't yet setup the PIC, so the 0x08-interrupt will be fired by a misaligned PIC interrupt

Minor changes yet again

Renaming kernel files

Updated README.md

Massively changed makefiles Now, release and debug builds are done in different folders

Added A20 check Booting aborts if A20 is disabled

Added rudimentary documentation, improved makefile Makefile now handles input files more flexibly, so no makefile change is necessary when adding a new file

Added page allocator

Added cursor, added backspace

Minor things again

Minor changes

Paging works nvm everything i said

Added paging implementation This doesn't execute, it produces a triple fault when far jumping to kernel code. Not sure why

Updated second stage Added simple print and clear methods for second stage

Added method to copy kernel Doesn't work yet, probably because of A20 gate

Protected Mode bug fix Jump to protected mode now successful. Turns out the GDT descriptor had its arguments in wrong order.

.gitignore & makefile update

GDT added, some workflow changes OS currently jumps into protected mode before the prerequisites are set, so execution fails

Second stage bootloader implemented Very whacky implementation of a bios-driven floppy "driver"

Workflow changes Recursive Makefiles added to support multiple, independent project parts

Update makefile Added 'rebuild' recipe, more sophisticated 'clear'

Create README.md

Hello World!