Debugger

I don't want to use gdb anymore, and it would be easier without using the qemu setup, so:

single step debugging of the register machine level (as close to arm as need be)
visual transitions for steps
visualisation of data in registers (some kind of link to the object)
show the current instruction and a few around
show vm object (message etc)
show effect of register transitions on vm objects
visualize vm object content (again some links)

Space