clean reg include, enable pit it in machine code
mach-at91: sam7s: fix status checking
scheduler: debug print
boot: sam7s: fix indent
kernel: cleanup main
task: add tasks files
scheduler: first implementation
mach-at91: uart-sam7s: fix bug skipping first char
Makefile: add task.c
kernel: task: fix compilation bug
mach-at91: pit: fix pit_enable_it
kernel: scheduler: add end_task function
arm: kernel: add context file
Makefile: add context.c
kernel: main: adding the two tasks
kernel: task: create context on adding, add debug trace
kernel: scheduler: add debug trace
include: scheduler: add create_context prototype
arm: kernel: add comment
add pit-core driver and use pit framework in sam7s pit