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diff --git a/src/devices/bus/isa/ultra24f.h b/src/devices/bus/isa/ultra24f.h
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+// license:BSD-3-Clause
+// copyright-holders:AJR
+/***************************************************************************
+
+ UltraStor Ultra-24F EISA SCSI Host Adapter
+
+***************************************************************************/
+
+#ifndef MAME_BUS_ISA_ULTRA24F_H
+#define MAME_BUS_ISA_ULTRA24F_H
+
+#pragma once
+
+#include "isa.h"
+#include "machine/upd765.h"
+
+class ultra24f_device : public device_t, public device_isa16_card_interface
+{
+public:
+ ultra24f_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 void device_add_mconfig(machine_config &config) override;
+ virtual const tiny_rom_entry *device_rom_region() const override;
+
+private:
+ void uscpu_map(address_map &map);
+ void scsic_config(device_t *device);
+
+ required_device<cpu_device> m_uscpu;
+ required_device<upd765_family_device> m_fdc;
+ required_region_ptr<u16> m_bios16;
+};
+
+DECLARE_DEVICE_TYPE(ULTRA24F, ultra24f_device)
+
+#endif // MAME_BUS_ISA_ULTRA24F_H