code: def instruction_ST8(self, opcode, ea, register):
          
          value = register.value
  #        log.debug("$%x ST8 store value $%x from %s at $%x \t| %s" % (
  #             self.program_counter,
  #             value, register.name, ea,
  #             self.cfg.mem_info.get_shortest(ea)
  #         ))
          self.clear_NZV()
          self.update_NZ_8(value)
          return ea, value
docs: Writes the contents of an 8-bit register into a memory location.
  
          source code forms: STA P; STB P
  
          CC bits "HNZVC": -aa0-