code: def basic_addresses_write(self, cycles, last_op_address, address, word):
          
          log.critical("%04x| write $%04x to $%04x", last_op_address, word, address)
          return word
docs: 0113 0019 TXTTAB RMB 2 *PV BEGINNING OF BASIC PROGRAM
          0114 001B VARTAB RMB 2 *PV START OF VARIABLES
          0115 001D ARYTAB RMB 2 *PV START OF ARRAYS
          0116 001F ARYEND RMB 2 *PV END OF ARRAYS (+1)
          0117 0021 FRETOP RMB 2 *PV START OF STRING STORAGE (TOP OF FREE RAM)
          0118 0023 STRTAB RMB 2 *PV START OF STRING VARIABLES
          0119 0025 FRESPC RMB 2 UTILITY STRING POINTER
          0120 0027 MEMSIZ RMB 2 *PV TOP OF STRING SPACE