1 // license:BSD-3-Clause 2 // copyright-holders:Curt Coder 3 /********************************************************************** 4 5 XL 80 cartridge emulation 6 7 **********************************************************************/ 8 9 #ifndef MAME_BUS_C64_XL80_H 10 #define MAME_BUS_C64_XL80_H 11 12 #pragma once 13 14 15 #include "exp.h" 16 #include "video/mc6845.h" 17 #include "emupal.h" 18 19 20 21 //************************************************************************** 22 // TYPE DEFINITIONS 23 //************************************************************************** 24 25 // ======================> c64_xl80_device 26 27 class c64_xl80_device : public device_t, 28 public device_c64_expansion_card_interface 29 { 30 public: 31 // construction/destruction 32 c64_xl80_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; c64_game_r(offs_t offset,int sphi2,int ba,int rw)46 virtual int c64_game_r(offs_t offset, int sphi2, int ba, int rw) override { return 1; } c64_exrom_r(offs_t offset,int sphi2,int ba,int rw)47 virtual int c64_exrom_r(offs_t offset, int sphi2, int ba, int rw) override { return 0; } 48 49 private: 50 MC6845_UPDATE_ROW( crtc_update_row ); 51 52 required_device<hd6845s_device> m_crtc; 53 required_device<palette_device> m_palette; 54 required_memory_region m_char_rom; 55 optional_shared_ptr<uint8_t> m_ram; 56 }; 57 58 59 // device type definition 60 DECLARE_DEVICE_TYPE(C64_XL80, c64_xl80_device) 61 62 63 #endif // MAME_BUS_C64_XL80_H 64