System calls #36
Description
The kernel will need syscalls so that programs can interact with the kernel. We could choose the same interrupt number as linux, which would be 0x80. The number used to select which syscall is desired could be placed in eax, and the kernel will perform the appropriate action for that number. Parameters should be passed according to the architecture's ABI, so for x86 we'd follow the cdecl ABI.
Depends on #51