Attempting bootloader in C.
Initial commit of interrupt testing system
Added file read/write code to the interrupt code.
Moved APM API to loader stage 2.
Trying to fix reboot loop in APM code in second loader stage.
Added support for using real-mode IDT
Trying to fix 32-bit execution of 16-bit APM driver code.
Hack fixed APM 16/32 bit problem.
Fixed merge conflict in loader