// license:BSD-3-Clause // copyright-holders:Nigel Barnes /********************************************************************** ATPL Sidewise ROM/RAM Expansion board https://www.retro-kit.co.uk/page.cfm/content/ATPL-Sidewise-Sideways-ROM-board/ ATPL Sidewise+ http://chrisacorns.computinghistory.org.uk/8bit_Upgrades/ATPL_Sidewise+.html **********************************************************************/ #ifndef MAME_BUS_BBC_INTERNAL_ATPL_H #define MAME_BUS_BBC_INTERNAL_ATPL_H #include "internal.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class bbc_atplsw_device : public device_t, public device_bbc_internal_interface { public: // construction/destruction bbc_atplsw_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 bool overrides_rom() override { return true; } virtual void romsel_w(offs_t offset, uint8_t data) override { m_romsel = data & 0x0f; } virtual uint8_t paged_r(offs_t offset) override; virtual void paged_w(offs_t offset, uint8_t data) override; private: optional_device_array m_rom; required_ioport m_wp; uint8_t m_romsel; }; class bbc_atplswp_device : public device_t, public device_bbc_internal_interface { public: // construction/destruction bbc_atplswp_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 bool overrides_rom() override { return true; } virtual void romsel_w(offs_t offset, uint8_t data) override { m_romsel = data & 0x0f; } virtual uint8_t paged_r(offs_t offset) override; virtual void paged_w(offs_t offset, uint8_t data) override; private: optional_device_array m_rom; uint8_t m_romsel; }; // device type definition DECLARE_DEVICE_TYPE(BBC_ATPLSW, bbc_atplsw_device); DECLARE_DEVICE_TYPE(BBC_ATPLSWP, bbc_atplswp_device); #endif /* MAME_BUS_BBC_INTERNAL_ATPL_H */