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/*********************************************************************
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 */
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