// license:BSD-3-Clause // copyright-holders:Fabio Priuli #ifndef MAME_BUS_SCV_ROM_H #define MAME_BUS_SCV_ROM_H #pragma once #include "slot.h" // ======================> scv_rom8_device class scv_rom8_device : public device_t, public device_scv_cart_interface { public: // construction/destruction scv_rom8_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // reading and writing virtual uint8_t read_cart(offs_t offset) override; protected: scv_rom8_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); // device-level overrides virtual void device_start() override { } virtual void device_reset() override { } }; // ======================> scv_rom16_device class scv_rom16_device : public scv_rom8_device { public: // construction/destruction scv_rom16_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // reading and writing virtual uint8_t read_cart(offs_t offset) override; }; // ======================> scv_rom32_device class scv_rom32_device : public scv_rom8_device { public: // construction/destruction scv_rom32_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // reading and writing virtual uint8_t read_cart(offs_t offset) override; }; // ======================> scv_rom32ram8_device class scv_rom32ram8_device : public scv_rom8_device { public: // construction/destruction scv_rom32ram8_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // reading and writing virtual uint8_t read_cart(offs_t offset) override; virtual void write_cart(offs_t offset, uint8_t data) override; virtual void write_bank(uint8_t data) override; protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; private: uint8_t m_ram_enabled; }; // ======================> scv_rom64_device class scv_rom64_device : public scv_rom8_device { public: // construction/destruction scv_rom64_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // device-level overrides virtual void device_start() override; virtual void device_reset() override; // reading and writing virtual uint8_t read_cart(offs_t offset) override; virtual void write_bank(uint8_t data) override; private: uint8_t m_bank_base; }; // ======================> scv_rom128_device class scv_rom128_device : public scv_rom8_device { public: // construction/destruction scv_rom128_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // reading and writing virtual uint8_t read_cart(offs_t offset) override; virtual void write_bank(uint8_t data) override; protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; private: uint8_t m_bank_base; }; // ======================> scv_rom128ram4_device class scv_rom128ram4_device : public scv_rom8_device { public: // construction/destruction scv_rom128ram4_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // reading and writing virtual uint8_t read_cart(offs_t offset) override; virtual void write_cart(offs_t offset, uint8_t data) override; virtual void write_bank(uint8_t data) override; protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; private: uint8_t m_bank_base, m_ram_enabled; }; // device type definition DECLARE_DEVICE_TYPE(SCV_ROM8K, scv_rom8_device) DECLARE_DEVICE_TYPE(SCV_ROM16K, scv_rom16_device) DECLARE_DEVICE_TYPE(SCV_ROM32K, scv_rom32_device) DECLARE_DEVICE_TYPE(SCV_ROM32K_RAM8K, scv_rom32ram8_device) DECLARE_DEVICE_TYPE(SCV_ROM64K, scv_rom64_device) DECLARE_DEVICE_TYPE(SCV_ROM128K, scv_rom128_device) DECLARE_DEVICE_TYPE(SCV_ROM128K_RAM4K, scv_rom128ram4_device) #endif // MAME_BUS_SCV_ROM_H