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diff --git a/src/devices/bus/cbmiec/c1541.h b/src/devices/bus/cbmiec/c1541.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Commodore 1540/1541/1541C/1541-II Single Disk Drive emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __C1541__
+#define __C1541__
+
+#include "emu.h"
+#include "cbmiec.h"
+#include "bus/c64/bn1541.h"
+#include "cpu/m6502/m6502.h"
+#include "machine/64h156.h"
+#include "machine/6522via.h"
+#include "machine/6821pia.h"
+#include "machine/latch.h"
+
+
+
+//**************************************************************************
+// MACROS / CONSTANTS
+//**************************************************************************
+
+#define C1541_TAG "c1541"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> c1541_base_t
+
+class c1541_base_t : public device_t,
+ public device_cbm_iec_interface,
+ public device_c64_floppy_parallel_interface
+{
+public:
+ // construction/destruction
+ c1541_base_t(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
+
+ // optional information overrides
+ virtual machine_config_constructor device_mconfig_additions() const;
+ virtual ioport_constructor device_input_ports() const;
+
+ DECLARE_WRITE_LINE_MEMBER( via0_irq_w );
+ virtual DECLARE_READ8_MEMBER( via0_pa_r );
+ DECLARE_WRITE8_MEMBER( via0_pa_w );
+ DECLARE_READ8_MEMBER( via0_pb_r );
+ DECLARE_WRITE8_MEMBER( via0_pb_w );
+ DECLARE_WRITE_LINE_MEMBER( via0_ca2_w );
+ DECLARE_WRITE_LINE_MEMBER( via1_irq_w );
+ DECLARE_READ8_MEMBER( via1_pb_r );
+ DECLARE_WRITE8_MEMBER( via1_pb_w );
+ DECLARE_WRITE_LINE_MEMBER( atn_w );
+ DECLARE_WRITE_LINE_MEMBER( byte_w );
+
+ DECLARE_FLOPPY_FORMATS( floppy_formats );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // device_cbm_iec_interface overrides
+ virtual void cbm_iec_atn(int state);
+ virtual void cbm_iec_reset(int state);
+
+ // device_c64_floppy_parallel_interface overrides
+ virtual void parallel_data_w(UINT8 data);
+ virtual void parallel_strobe_w(int state);
+
+ enum
+ {
+ LED_POWER = 0,
+ LED_ACT
+ };
+
+ inline void set_iec_data();
+
+ required_device<m6502_device> m_maincpu;
+ required_device<via6522_device> m_via0;
+ required_device<via6522_device> m_via1;
+ required_device<c64h156_device> m_ga;
+ required_device<floppy_image_device> m_floppy;
+ required_ioport m_address;
+
+ // IEC bus
+ int m_data_out; // serial data out
+
+ // interrupts
+ int m_via0_irq; // VIA #0 interrupt request
+ int m_via1_irq; // VIA #1 interrupt request
+};
+
+
+// ======================> c1540_t
+
+class c1540_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ c1540_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+};
+
+
+// ======================> c1541_t
+
+class c1541_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ c1541_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+};
+
+
+// ======================> c1541c_t
+
+class c1541c_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ c1541c_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+
+ // not really public
+ virtual DECLARE_READ8_MEMBER( via0_pa_r );
+};
+
+
+// ======================> c1541ii_t
+
+class c1541ii_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ c1541ii_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+};
+
+
+// ======================> sx1541_t
+
+class sx1541_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ sx1541_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+};
+
+
+// ======================> fsd1_t
+
+class fsd1_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ fsd1_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+};
+
+
+// ======================> fsd2_t
+
+class fsd2_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ fsd2_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+
+ // device-level overrides
+ virtual void device_start();
+};
+
+
+// ======================> csd1_t
+
+class csd1_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ csd1_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+};
+
+
+// ======================> c1541_dolphin_dos_t
+
+class c1541_dolphin_dos_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ c1541_dolphin_dos_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+};
+
+
+// ======================> c1541_professional_dos_v1_t
+
+class c1541_professional_dos_v1_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ c1541_professional_dos_v1_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+};
+
+
+// ======================> c1541_prologic_dos_classic_t
+
+class c1541_prologic_dos_classic_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ c1541_prologic_dos_classic_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+
+ // not really public
+ DECLARE_READ8_MEMBER( read );
+ DECLARE_WRITE8_MEMBER( write );
+
+ DECLARE_READ8_MEMBER( pia_r );
+ DECLARE_WRITE8_MEMBER( pia_w );
+
+ DECLARE_WRITE8_MEMBER( pia_pa_w );
+ DECLARE_READ8_MEMBER( pia_pb_r );
+ DECLARE_WRITE8_MEMBER( pia_pb_w );
+
+protected:
+ required_device<pia6821_device> m_pia;
+ required_device<output_latch_device> m_cent_data_out;
+ required_memory_region m_mmu_rom;
+};
+
+
+// ======================> indus_gt_t
+
+class indus_gt_t : public c1541_base_t
+{
+public:
+ // construction/destruction
+ indus_gt_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+};
+
+
+// device type definition
+extern const device_type C1540;
+extern const device_type C1541;
+extern const device_type C1541C;
+extern const device_type C1541II;
+extern const device_type SX1541;
+extern const device_type FSD1;
+extern const device_type FSD2;
+extern const device_type CSD1;
+extern const device_type C1541_DOLPHIN_DOS;
+extern const device_type C1541_PROFESSIONAL_DOS_V1;
+extern const device_type C1541_PROLOGIC_DOS_CLASSIC;
+extern const device_type INDUS_GT;
+
+
+
+#endif