Most probably you use uP help. In x86 you activate the trap flag [1] and get a specific interrupt called at each instruction step, there you can do more sofware

Most probably you use uP help. In x86 you activate the trap flag [1] and get a specific interrupt called at each instruction step, there you can do more sofware debugging or instead use hardware breakpoints and other hardware supported debugging as in [2]. [1] https://en.wikipedia.org/wiki/Trap_flag https://en.wikipedia.org/wiki/Trap_flag [2] https://en.wikipedia.org/wiki/X86_debug_register https://en.wikipedia.org/wiki/X86_debug_register