1 // license:BSD-3-Clause 2 // copyright-holders:Curt Coder 3 /********************************************************************** 4 5 Brown Boxes Double Quick Brown Box emulation 6 7 **********************************************************************/ 8 9 #ifndef MAME_BUS_C64_DQBB_H 10 #define MAME_BUS_C64_DQBB_H 11 12 #pragma once 13 14 15 #include "exp.h" 16 #include "machine/nvram.h" 17 18 19 20 //************************************************************************** 21 // TYPE DEFINITIONS 22 //************************************************************************** 23 24 // ======================> c64_dqbb_cartridge_device 25 26 class c64_dqbb_cartridge_device : public device_t, 27 public device_c64_expansion_card_interface, 28 public device_nvram_interface 29 { 30 public: 31 // construction/destruction 32 c64_dqbb_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); 33 34 protected: 35 // device-level overrides 36 virtual void device_start() override; 37 virtual void device_reset() override; 38 39 // device_nvram_interface overrides nvram_default()40 virtual void nvram_default() override { } nvram_read(emu_file & file)41 virtual void nvram_read(emu_file &file) override { if (m_nvram != nullptr) { file.read(m_nvram, m_nvram.bytes()); } } nvram_write(emu_file & file)42 virtual void nvram_write(emu_file &file) override { if (m_nvram != nullptr) { file.write(m_nvram, m_nvram.bytes()); } } 43 44 // device_c64_expansion_card_interface overrides 45 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; 46 virtual void c64_cd_w(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override; 47 48 private: 49 int m_cs; 50 int m_we; 51 }; 52 53 54 // device type definition 55 DECLARE_DEVICE_TYPE(C64_DQBB, c64_dqbb_cartridge_device) 56 57 58 #endif // MAME_BUS_C64_DQBB_H 59