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diff --git a/src/mame/machine/appldriv.h b/src/mame/machine/appldriv.h
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+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+ appldriv.h
+
+ Apple 5.25" floppy drive emulation (to be interfaced with applefdc.c)
+
+*********************************************************************/
+
+#ifndef APPLDRIV_H
+#define APPLDRIV_H
+
+#include "emu.h"
+#include "imagedev/flopdrv.h"
+#include "formats/ap2_dsk.h"
+
+void apple525_set_lines(device_t *device,UINT8 lines);
+void apple525_set_enable_lines(device_t *device,int enable_mask);
+
+UINT8 apple525_read_data(device_t *device);
+void apple525_write_data(device_t *device,UINT8 data);
+int apple525_read_status(device_t *device);
+int apple525_get_count(running_machine &machine);
+
+class apple525_floppy_image_device : public legacy_floppy_image_device
+{
+public:
+ // construction/destruction
+ apple525_floppy_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ virtual bool call_load();
+ virtual void call_unload();
+ void set_params(int dividend, int divisor) { m_dividend = dividend; m_divisor = divisor;}
+
+ int get_dividend() { return m_dividend; }
+ int get_divisor() { return m_divisor; }
+
+ // these elements should be private, but are not yet
+ unsigned int state : 4; /* bits 0-3 are the phase */
+ unsigned int tween_tracks : 1;
+ unsigned int track_loaded : 1;
+ unsigned int track_dirty : 1;
+ int position;
+ int spin_count; /* simulate drive spin to fool RWTS test at $BD34 */
+ UINT8 track_data[APPLE2_NIBBLE_SIZE * APPLE2_SECTOR_COUNT];
+
+protected:
+ virtual void device_start();
+
+private:
+ int m_dividend;
+ int m_divisor;
+};
+
+// device type definition
+extern const device_type FLOPPY_APPLE;
+
+#define MCFG_LEGACY_FLOPPY_APPLE_PARAMS(_dividend,_divisor) \
+ downcast<apple525_floppy_image_device *>(device)->set_params(_dividend,_divisor);
+
+#define MCFG_LEGACY_FLOPPY_APPLE_2_DRIVES_ADD(_config,_dividend,_divisor) \
+ MCFG_DEVICE_ADD(FLOPPY_0, FLOPPY_APPLE, 0) \
+ MCFG_DEVICE_CONFIG(_config) \
+ MCFG_LEGACY_FLOPPY_APPLE_PARAMS(_dividend,_divisor) \
+ MCFG_DEVICE_ADD(FLOPPY_1, FLOPPY_APPLE, 0) \
+ MCFG_DEVICE_CONFIG(_config) \
+ MCFG_LEGACY_FLOPPY_APPLE_PARAMS(_dividend,_divisor)
+
+#define MCFG_LEGACY_FLOPPY_APPLE_4_DRIVES_ADD(_config,_dividend,_divisor) \
+ MCFG_DEVICE_ADD(FLOPPY_0, FLOPPY_APPLE, 0) \
+ MCFG_DEVICE_CONFIG(_config) \
+ MCFG_LEGACY_FLOPPY_APPLE_PARAMS(_dividend,_divisor) \
+ MCFG_DEVICE_ADD(FLOPPY_1, FLOPPY_APPLE, 0) \
+ MCFG_DEVICE_CONFIG(_config) \
+ MCFG_LEGACY_FLOPPY_APPLE_PARAMS(_dividend,_divisor) \
+ MCFG_DEVICE_ADD(FLOPPY_2, FLOPPY_APPLE, 0) \
+ MCFG_DEVICE_CONFIG(_config) \
+ MCFG_LEGACY_FLOPPY_APPLE_PARAMS(_dividend,_divisor) \
+ MCFG_DEVICE_ADD(FLOPPY_3, FLOPPY_APPLE, 0) \
+ MCFG_DEVICE_CONFIG(_config) \
+ MCFG_LEGACY_FLOPPY_APPLE_PARAMS(_dividend,_divisor)
+
+#define MCFG_LEGACY_FLOPPY_APPLE_2_DRIVES_REMOVE() \
+ MCFG_DEVICE_REMOVE(FLOPPY_0) \
+ MCFG_DEVICE_REMOVE(FLOPPY_1)
+
+#endif /* APPLDRIV_H */