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// license:MAME
// copyright-holders:smf
/*
scsidev.h
Base class for SCSI devices.
*/
#ifndef _SCSIDEV_H_
#define _SCSIDEV_H_
#include "emu.h"
#define SCSI_MASK_DATA ( 0x00000ff )
#define SCSI_MASK_DATAH ( 0x000ff00 )
#define SCSI_MASK_DATAP ( 0x0010000 )
#define SCSI_MASK_BSY ( 0x0020000 )
#define SCSI_MASK_SEL ( 0x0040000 )
#define SCSI_MASK_CD ( 0x0080000 )
#define SCSI_MASK_IO ( 0x0100000 )
#define SCSI_MASK_MSG ( 0x0200000 )
#define SCSI_MASK_REQ ( 0x0400000 )
#define SCSI_MASK_ACK ( 0x0800000 )
#define SCSI_MASK_ATN ( 0x1000000 )
#define SCSI_MASK_RST ( 0x2000000 )
#define SCSI_MASK_ALL ( 0x3ffffff )
class scsibus_device;
// base handler
class scsidev_device : public device_t
{
friend class scsibus_device;
public:
// construction/destruction
scsidev_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
protected:
// device-level overrides
virtual void device_start();
void scsi_out( UINT32 data, UINT32 mask );
private:
virtual void scsi_in( UINT32 data, UINT32 mask ) = 0;
UINT32 data_out;
scsibus_device *m_scsibus;
};
#endif
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