iget
mkfs makes a file system image
put this in your .bochsrc:
ata0-slave: type=disk, mode=flat, path="fs.img", cylinders=1024, heads=1, spt=1

Eliminate unnecessary parts of mmu.h.

Add cons_puts for cleaner output.

(Fd_reference sounds like it might just return the ref count.)

Also remove all calls to memcpy in favor of
memmove, which has defined semantics when
the ranges overlap.  The fact that memcpy was
working in console.c to scroll the screen is not
guaranteed by all implementations.

Removed cli and sti stack in favor of tracking
number of locks held on each CPU and explicit
conditionals in spinlock.c.

They had been returning 0 on error, 1 on success, but all the callers
were checking for return value < 0.