Debugging code running on multiprocessor computing systems, and, in particular, parallel code on multicore devices, is an old computing problem that has reached a certain prominence and urgency ...

So, one of the key skills for any programmer is debugging -- the art and science of finding why code isn't running or is doing something unexpected or undesirable.

Running a debugger like gdb with real-mode 16-bit code on the x86 platform is not the easiest thing to do, but incredibly useful when it comes to analyzing BIOS firmware and DOS software. Although … ...