Add toolchain script for x86
First x86-multiboot commit
Use quad_math
Implement getcontext and setcontext
Implement makecontext, hello-world works now!
Interrupt handling should be working, now
Build newlib with -flto
Less magic numbers for UART
Implement PIC
'Implement' GDT and PIT, fix PIC
Add page table (no #PF handler, yet)
Better assembly for ucontext
Dump
Page fault handler works now
Fix inISR() tracking
Add empty board.h
Typos
Add FPU support
USEMODULE -> USEPKG
No quad math