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Diffstat (limited to 'src/devices/bus/spectrum/opus.h')
-rw-r--r-- | src/devices/bus/spectrum/opus.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/devices/bus/spectrum/opus.h b/src/devices/bus/spectrum/opus.h new file mode 100644 index 00000000000..8d72d8be94b --- /dev/null +++ b/src/devices/bus/spectrum/opus.h @@ -0,0 +1,75 @@ +// 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<pia6821_device> m_pia; + required_device<wd_fdc_device_base> m_fdc; + required_device<floppy_connector> m_floppy0; + required_device<floppy_connector> m_floppy1; + required_device<centronics_device> m_centronics; + required_device<spectrum_expansion_slot_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 |