1 uint8 ram_read(uint16 addr); 2 void ram_write(uint16 addr, uint8 data); 3 4 uint8 port_read(uint8 port); 5 void port_write(uint8 port, uint8 data); 6 7 uint8 op_busread(uint16 addr); 8 void op_buswrite(uint16 addr, uint8 data); 9 10 void op_io(); 11 debugvirtual uint8 op_read(uint16 addr); 12 debugvirtual void op_write(uint16 addr, uint8 data); 13