1 // license:BSD-3-Clause 2 // copyright-holders:Curt Coder 3 /********************************************************************** 4 5 NeoRAM cartridge emulation 6 7 **********************************************************************/ 8 9 #ifndef MAME_BUS_C64_NEORAM_H 10 #define MAME_BUS_C64_NEORAM_H 11 12 #pragma once 13 14 15 #include "exp.h" 16 17 18 19 //************************************************************************** 20 // TYPE DEFINITIONS 21 //************************************************************************** 22 23 // ======================> c64_neoram_cartridge_device 24 25 class c64_neoram_cartridge_device : public device_t, 26 public device_c64_expansion_card_interface, 27 public device_nvram_interface 28 { 29 public: 30 // construction/destruction 31 c64_neoram_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); 32 33 protected: 34 // device-level overrides 35 virtual void device_start() override; 36 virtual void device_reset() override; 37 38 // device_nvram_interface overrides nvram_default()39 virtual void nvram_default() override { } nvram_read(emu_file & file)40 virtual void nvram_read(emu_file &file) override { if (m_nvram != nullptr) { file.read(m_nvram, m_nvram.bytes()); } } nvram_write(emu_file & file)41 virtual void nvram_write(emu_file &file) override { if (m_nvram != nullptr) { file.write(m_nvram, m_nvram.bytes()); } } 42 43 // device_c64_expansion_card_interface overrides 44 virtual uint8_t c64_cd_r(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override; 45 virtual void c64_cd_w(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override; 46 47 private: 48 uint16_t m_bank; 49 }; 50 51 52 // device type definition 53 DECLARE_DEVICE_TYPE(C64_NEORAM, c64_neoram_cartridge_device) 54 55 56 #endif // MAME_BUS_C64_NEORAM_H 57