1 // license:BSD-3-Clause 2 // copyright-holders:Curt Coder 3 /********************************************************************** 4 5 Commodore 64 CP/M cartridge emulation 6 7 **********************************************************************/ 8 9 #ifndef MAME_BUS_C64_CPM_H 10 #define MAME_BUS_C64_CPM_H 11 12 #pragma once 13 14 #include "exp.h" 15 #include "cpu/z80/z80.h" 16 17 18 19 //************************************************************************** 20 // TYPE DEFINITIONS 21 //************************************************************************** 22 23 // ======================> c64_cpm_cartridge_device 24 25 class c64_cpm_cartridge_device : public device_t, 26 public device_c64_expansion_card_interface 27 { 28 public: 29 // construction/destruction 30 c64_cpm_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); 31 32 protected: 33 // device-level overrides 34 virtual void device_start() override; 35 virtual void device_reset() override; 36 37 // optional information overrides 38 virtual void device_add_mconfig(machine_config &config) override; 39 40 // device_c64_expansion_card_interface overrides 41 virtual void c64_cd_w(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override; 42 virtual int c64_game_r(offs_t offset, int sphi2, int ba, int rw) override; 43 44 private: 45 inline void update_signals(); 46 47 required_device<cpu_device> m_maincpu; 48 49 int m_enabled; 50 int m_ba; 51 52 int m_reset; 53 54 uint8_t dma_r(offs_t offset); 55 void dma_w(offs_t offset, uint8_t data); 56 57 void z80_io(address_map &map); 58 void z80_mem(address_map &map); 59 }; 60 61 62 // device type definition 63 DECLARE_DEVICE_TYPE(C64_CPM, c64_cpm_cartridge_device) 64 65 66 #endif // MAME_BUS_C64_CPM_H 67