// license:BSD-3-Clause // copyright-holders:Sandro Ronco #ifndef MAME_BUS_Z88_RAM_H #define MAME_BUS_Z88_RAM_H #pragma once #include "z88.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> z88_32k_ram_device class z88_32k_ram_device : public device_t, public device_z88cart_interface { public: // construction/destruction z88_32k_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: z88_32k_ram_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; // z88cart_interface overrides virtual DECLARE_READ8_MEMBER(read) override; virtual DECLARE_WRITE8_MEMBER(write) override; virtual uint8_t* get_cart_base() override; virtual uint32_t get_cart_size() override { return 0x8000; } protected: // internal state uint8_t * m_ram; }; // ======================> z88_128k_ram_device class z88_128k_ram_device : public z88_32k_ram_device { public: // construction/destruction z88_128k_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: // z88cart_interface overrides virtual uint32_t get_cart_size() override { return 0x20000; } }; // ======================> z88_512k_ram_device class z88_512k_ram_device : public z88_32k_ram_device { public: // construction/destruction z88_512k_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: // z88cart_interface overrides virtual uint32_t get_cart_size() override { return 0x80000; } }; // ======================> z88_1024k_ram_device class z88_1024k_ram_device : public z88_32k_ram_device { public: // construction/destruction z88_1024k_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: // z88cart_interface overrides virtual uint32_t get_cart_size() override { return 0x100000; } }; // device type definition DECLARE_DEVICE_TYPE(Z88_32K_RAM, z88_32k_ram_device) DECLARE_DEVICE_TYPE(Z88_128K_RAM, z88_128k_ram_device) DECLARE_DEVICE_TYPE(Z88_512K_RAM, z88_512k_ram_device) DECLARE_DEVICE_TYPE(Z88_1024K_RAM, z88_1024k_ram_device) #endif // MAME_BUS_Z88_RAM_H