1 // license:BSD-3-Clause 2 // copyright-holders:Curt Coder 3 /********************************************************************** 4 5 Multiscreen cartridge emulation 6 7 **********************************************************************/ 8 9 #ifndef MAME_BUS_C64_MULTISCREEN_H 10 #define MAME_BUS_C64_MULTISCREEN_H 11 12 #pragma once 13 14 15 #include "cpu/m6800/m6800.h" 16 #include "machine/6821pia.h" 17 #include "exp.h" 18 19 20 21 //************************************************************************** 22 // TYPE DEFINITIONS 23 //************************************************************************** 24 25 // ======================> c64_multiscreen_cartridge_device 26 27 class c64_multiscreen_cartridge_device : public device_t, 28 public device_c64_expansion_card_interface 29 { 30 public: 31 // construction/destruction 32 c64_multiscreen_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 // optional information overrides 40 virtual const tiny_rom_entry *device_rom_region() const override; 41 virtual void device_add_mconfig(machine_config &config) override; 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 uint8_t m_bank; 49 50 void multiscreen_mem(address_map &map); 51 }; 52 53 54 // device type definition 55 DECLARE_DEVICE_TYPE(C64_MULTISCREEN, c64_multiscreen_cartridge_device) 56 57 58 #endif // MAME_BUS_C64_MULTISCREEN_H 59