1 // license:BSD-3-Clause 2 // copyright-holders:Curt Coder 3 /********************************************************************** 4 5 Magic Formel cartridge emulation 6 7 **********************************************************************/ 8 9 #ifndef MAME_BUS_C64_MAGIC_FORMEL_H 10 #define MAME_BUS_C64_MAGIC_FORMEL_H 11 12 #pragma once 13 14 #include "exp.h" 15 #include "machine/6821pia.h" 16 17 18 19 //************************************************************************** 20 // TYPE DEFINITIONS 21 //************************************************************************** 22 23 // ======================> c64_magic_formel_cartridge_device 24 25 class c64_magic_formel_cartridge_device : public device_t, 26 public device_c64_expansion_card_interface 27 { 28 public: 29 // construction/destruction 30 c64_magic_formel_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); 31 32 DECLARE_INPUT_CHANGED_MEMBER( freeze ); 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 void device_add_mconfig(machine_config &config) override; 41 virtual ioport_constructor device_input_ports() const 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 virtual int c64_game_r(offs_t offset, int sphi2, int ba, int rw) override; 47 48 private: 49 void pia_pa_w(uint8_t data); 50 void pia_pb_w(uint8_t data); 51 DECLARE_WRITE_LINE_MEMBER( pia_cb2_w ); 52 53 required_device<pia6821_device> m_pia; 54 optional_shared_ptr<uint8_t> m_ram; 55 56 uint8_t m_rom_bank; 57 uint8_t m_ram_bank; 58 int m_ram_oe; 59 int m_pb7; 60 int m_u9a; 61 int m_u9b; 62 }; 63 64 65 // device type definition 66 DECLARE_DEVICE_TYPE(C64_MAGIC_FORMEL, c64_magic_formel_cartridge_device) 67 68 69 #endif // MAME_BUS_C64_MAGIC_FORMEL_H 70