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-rw-r--r--src/devices/bus/a800/atari1050.h48
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diff --git a/src/devices/bus/a800/atari1050.h b/src/devices/bus/a800/atari1050.h
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+// license:BSD-3-Clause
+// copyright-holders:AJR
+/***************************************************************************
+
+ Atari 1050 Dual Density Disk Drive
+
+***************************************************************************/
+
+#ifndef MAME_BUS_A800_ATARI1050
+#define MAME_BUS_A800_ATARI1050 1
+
+#pragma once
+
+#include "a8sio.h"
+#include "machine/mos6530n.h"
+#include "machine/wd_fdc.h"
+
+
+class atari1050_device : public device_t, public device_a8sio_card_interface
+{
+public:
+ atari1050_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+ static constexpr feature_type unemulated_features() { return feature::DISK; }
+
+protected:
+ virtual void device_start() override;
+ virtual ioport_constructor device_input_ports() const override;
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual const tiny_rom_entry *device_rom_region() const override;
+
+ virtual DECLARE_WRITE_LINE_MEMBER(data_out_w) override;
+ virtual DECLARE_WRITE_LINE_MEMBER(command_w) override;
+ virtual DECLARE_WRITE_LINE_MEMBER(ready_w) override;
+
+private:
+ void step_w(u8 data);
+
+ void mem_map(address_map &map);
+
+ required_device<mos6532_new_device> m_pia;
+ required_device<wd2793_device> m_fdc;
+};
+
+// device type declaration
+DECLARE_DEVICE_TYPE(ATARI1050, atari1050_device)
+
+#endif // MAME_BUS_A800_ATARI1050