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-rw-r--r--src/devices/bus/spectrum/logitek.h73
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diff --git a/src/devices/bus/spectrum/logitek.h b/src/devices/bus/spectrum/logitek.h
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+++ b/src/devices/bus/spectrum/logitek.h
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+// license:BSD-3-Clause
+// copyright-holders:MetalliC
+/*********************************************************************
+
+ Proceed 1 Interface
+ (c) 1984 Logitek
+
+*********************************************************************/
+#ifndef MAME_BUS_SPECTRUM_LOGITEK_H
+#define MAME_BUS_SPECTRUM_LOGITEK_H
+
+#include "exp.h"
+#include "softlist.h"
+#include "machine/z80pio.h"
+#include "bus/cbmiec/cbmiec.h"
+#include "bus/centronics/ctronics.h"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class spectrum_proceed_device :
+ public device_t,
+ public device_spectrum_expansion_interface
+
+{
+public:
+ // construction/destruction
+ spectrum_proceed_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ static constexpr feature_type unemulated_features() { return feature::DISK; }
+
+ DECLARE_INPUT_CHANGED_MEMBER(nmi_button) { m_slot->nmi_w(newval ? ASSERT_LINE : CLEAR_LINE); }
+
+protected:
+ // device-level overrides
+ virtual void device_start() override ATTR_COLD;
+ virtual void device_reset() override ATTR_COLD;
+
+ // optional information overrides
+ virtual ioport_constructor device_input_ports() const override ATTR_COLD;
+
+ virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
+ virtual const tiny_rom_entry *device_rom_region() const override ATTR_COLD;
+
+ void fetch(offs_t offset);
+
+ virtual void pre_opcode_fetch(offs_t offset) override { fetch(offset); }
+ virtual void pre_data_fetch(offs_t offset) override { fetch(offset); }
+ virtual uint8_t mreq_r(offs_t offset) override;
+ virtual uint8_t iorq_r(offs_t offset) override;
+ virtual void iorq_w(offs_t offset, uint8_t data) override;
+ virtual bool romcs() override;
+
+ required_memory_region m_rom;
+ required_device<z80pio_device> m_z80pio;
+ required_device<cbm_iec_device> m_iec;
+ required_device<centronics_device> m_centronics;
+
+ void pioa_w(uint8_t data);
+ void piob_w(uint8_t data);
+ uint8_t piob_r();
+
+ bool m_romcs;
+ int m_romen;
+};
+
+
+// device type definition
+DECLARE_DEVICE_TYPE(SPECTRUM_PROCEED, spectrum_proceed_device)
+
+
+#endif // MAME_BUS_SPECTRUM_LOGITEK_H