// license:BSD-3-Clause // copyright-holders:Nigel Barnes /********************************************************************** Watford Electronics 12 ROM Board http://chrisacorns.computinghistory.org.uk/8bit_Upgrades/WE_12ROMboard.html Watford Electronics 13 ROM Board http://chrisacorns.computinghistory.org.uk/8bit_Upgrades/WE_13ROMBoard.html **********************************************************************/ #ifndef MAME_BUS_BBC_INTERNAL_WEROM_H #define MAME_BUS_BBC_INTERNAL_WEROM_H #include "internal.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class bbc_werom_device : public device_t, public device_bbc_internal_interface { public: // construction/destruction bbc_werom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: bbc_werom_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); optional_device_array m_rom; virtual bool overrides_rom() override { return true; } virtual void romsel_w(offs_t offset, uint8_t data) override { m_romsel = data & 0x0f; } uint8_t m_romsel; }; class bbc_we12rom_device : public bbc_werom_device { public: // construction/destruction bbc_we12rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: // device-level overrides virtual void device_start() override ATTR_COLD; // optional information overrides virtual void device_add_mconfig(machine_config &config) override ATTR_COLD; virtual ioport_constructor device_input_ports() const override ATTR_COLD; virtual uint8_t paged_r(offs_t offset) override; virtual void paged_w(offs_t offset, uint8_t data) override; private: required_ioport m_wp; }; class bbc_we13rom_device : public bbc_werom_device { public: // construction/destruction bbc_we13rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: // device-level overrides virtual void device_start() override ATTR_COLD; // optional information overrides virtual void device_add_mconfig(machine_config &config) override ATTR_COLD; virtual uint8_t paged_r(offs_t offset) override; virtual void paged_w(offs_t offset, uint8_t data) override; }; // device type definition DECLARE_DEVICE_TYPE(BBC_WE12ROM, bbc_we12rom_device); DECLARE_DEVICE_TYPE(BBC_WE13ROM, bbc_we13rom_device); #endif /* MAME_BUS_BBC_INTERNAL_WEROM_H */