code: def instruction_ADD8(self, opcode, m, register):
          
          assert register.WIDTH == 8
          old = register.value
          r = old + m
          register.set(r)
  #         log.debug("$%x %02x %02x ADD8 %s: $%02x + $%02x = $%02x" % (
  #             self.program_counter, opcode, m,
  #             register.name,
  #             old, m, r
  #         ))
          self.clear_HNZVC()
          self.update_HNZVC_8(old, m, r)
docs: Adds the memory byte into an 8-bit accumulator.
  
          source code forms: ADDA P; ADDB P
  
          CC bits "HNZVC": aaaaa