// license:BSD-3-Clause // copyright-holders:Nigel Barnes /********************************************************************** Opus Discovery disc system **********************************************************************/ #ifndef MAME_BUS_SPECTRUM_OPUS_H #define MAME_BUS_SPECTRUM_OPUS_H #include "exp.h" #include "softlist.h" #include "imagedev/floppy.h" #include "machine/wd_fdc.h" #include "machine/6821pia.h" #include "bus/centronics/ctronics.h" #include "formats/opd_dsk.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class spectrum_opus_device: public device_t, public device_spectrum_expansion_interface { public: // construction/destruction spectrum_opus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); DECLARE_FLOPPY_FORMATS(floppy_formats); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; // optional information overrides virtual void device_add_mconfig(machine_config &config) override; virtual ioport_constructor device_input_ports() const override; virtual const tiny_rom_entry *device_rom_region() const override; virtual void 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; private: DECLARE_WRITE8_MEMBER(pia_out_a); DECLARE_WRITE8_MEMBER(pia_out_b); DECLARE_WRITE_LINE_MEMBER(busy_w); required_ioport m_joy; required_memory_region m_rom; required_device m_pia; required_device m_fdc; required_device m_floppy0; required_device m_floppy1; required_device m_centronics; required_device m_exp; int m_romcs; uint8_t m_ram[4 * 1024]; offs_t m_last_pc; }; // device type definition DECLARE_DEVICE_TYPE(SPECTRUM_OPUS, spectrum_opus_device) #endif // MAME_BUS_SPECTRUM_OPUS_H