// license:BSD-3-Clause // copyright-holders:MetalliC /********************************************************************** Didaktik D40/D80 interface **********************************************************************/ #ifndef MAME_BUS_SPECTRUM_D40_H #define MAME_BUS_SPECTRUM_D40_H #pragma once #include "exp.h" //#include "softlist.h" #include "imagedev/floppy.h" #include "machine/wd_fdc.h" #include "machine/upd765.h" #include "machine/i8255.h" #include "formats/pc_dsk.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class spectrum_d40base_device: public device_t, public device_spectrum_expansion_interface { public: DECLARE_INPUT_CHANGED_MEMBER(snapshot_button); protected: spectrum_d40base_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock); // device-level overrides virtual void device_start() override; virtual void device_reset() override; // optional information overrides virtual ioport_constructor device_input_ports() const override; virtual void pre_opcode_fetch(offs_t offset) override; virtual uint8_t mreq_r(offs_t offset) override; virtual void mreq_w(offs_t offset, uint8_t data) override; virtual uint8_t iorq_r(offs_t offset) override; virtual void iorq_w(offs_t offset, uint8_t data) override; virtual DECLARE_READ_LINE_MEMBER(romcs) override; virtual uint8_t fdc0_r(offs_t offset) { return 0xff; } virtual uint8_t fdc1_r(offs_t offset) { return 0xff; } virtual void fdc0_w(offs_t offset, uint8_t data) { } virtual void fdc1_w(offs_t offset, uint8_t data) { } virtual void nmi_check(); required_memory_region m_rom; required_device m_ppi; required_ioport m_snap; int m_romcs; uint8_t m_ram[2 * 1024]; int m_snap_flag; int m_8255_reset; int m_8255_enable; }; class spectrum_d40_device : public spectrum_d40base_device { public: spectrum_d40_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock); protected: spectrum_d40_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock); virtual void device_add_mconfig(machine_config &config) override; virtual const tiny_rom_entry *device_rom_region() const override; virtual void device_start() override; virtual void device_reset() override; required_device m_fdc; required_device_array m_floppy; virtual uint8_t fdc0_r(offs_t offset) override; virtual void fdc0_w(offs_t offset, uint8_t data) override; virtual void fdc1_w(offs_t offset, uint8_t data) override; void fdc_intrq_w(int state); void fdc_drq_w(int state); virtual void nmi_check() override; uint8_t m_control; int m_intrq; int m_drq; }; class spectrum_d80_device : public spectrum_d40_device { public: spectrum_d80_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock); protected: virtual void device_add_mconfig(machine_config &config) override; }; class spectrum_d80v2_device : public spectrum_d40base_device { public: spectrum_d80v2_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock); protected: virtual void device_add_mconfig(machine_config &config) override; virtual const tiny_rom_entry *device_rom_region() const override; virtual void pre_opcode_fetch(offs_t offset) override; virtual uint8_t mreq_r(offs_t offset) override; required_device m_fdc; required_device_array m_floppy; virtual uint8_t fdc0_r(offs_t offset) override; virtual uint8_t fdc1_r(offs_t offset) override; virtual void fdc0_w(offs_t offset, uint8_t data) override; virtual void fdc1_w(offs_t offset, uint8_t data) override; }; // device type definition DECLARE_DEVICE_TYPE(SPECTRUM_D40, spectrum_d40_device) DECLARE_DEVICE_TYPE(SPECTRUM_D80, spectrum_d80_device) DECLARE_DEVICE_TYPE(SPECTRUM_D80V2, spectrum_d80v2_device) #endif // MAME_BUS_SPECTRUM_D40_H