Merge pull request #9 from vandersonmr/master

Cleaning warnings in cpuid.c
Merge pull request #10 from vandersonmr/master

add LinkedList
Merge pull request #11 from vandersonmr/master

Bug no print fixed. Paginação de 128mb só pra ter certeza ;)
Update Makefile.freebsd to support kmalloc and linked list...
Initial serial port support included. To test it use -serial stdio to boot the
system on qemu.
Last commit was incomplete
merge
Suporte a porta serialw