// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Commodore 2031 Single Disk Drive emulation **********************************************************************/ #ifndef MAME_BUS_IEEE488_C2031_H #define MAME_BUS_IEEE488_C2031_H #pragma once #include "ieee488.h" #include "cpu/m6502/m6502.h" #include "machine/64h156.h" #include "machine/6522via.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> c2031_device class c2031_device : public device_t, public device_ieee488_interface { public: // construction/destruction c2031_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; // optional information overrides virtual const tiny_rom_entry *device_rom_region() const override; virtual void device_add_mconfig(machine_config &config) override; virtual ioport_constructor device_input_ports() const override; // device_ieee488_interface overrides virtual void ieee488_atn(int state) override; virtual void ieee488_ifc(int state) override; private: inline int get_device_number(); DECLARE_WRITE_LINE_MEMBER( via0_irq_w ); DECLARE_READ8_MEMBER( via0_pa_r ); DECLARE_WRITE8_MEMBER( via0_pa_w ); DECLARE_READ8_MEMBER( via0_pb_r ); DECLARE_WRITE8_MEMBER( via0_pb_w ); DECLARE_WRITE_LINE_MEMBER( via1_irq_w ); DECLARE_READ8_MEMBER( via1_pb_r ); DECLARE_WRITE8_MEMBER( via1_pb_w ); DECLARE_WRITE_LINE_MEMBER( byte_w ); void c2031_mem(address_map &map); DECLARE_FLOPPY_FORMATS( floppy_formats ); required_device m_maincpu; required_device m_via0; required_device m_via1; required_device m_ga; required_device m_floppy; required_ioport m_address; output_finder<2> m_leds; // IEEE-488 bus int m_nrfd_out; // not ready for data int m_ndac_out; // not data accepted int m_atna; // attention acknowledge int m_ifc; // interrupts int m_via0_irq; // VIA #0 interrupt request int m_via1_irq; // VIA #1 interrupt request }; // device type definition DECLARE_DEVICE_TYPE(C2031, c2031_device) #endif // MAME_BUS_IEEE488_C2031_H