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Power 6/32 Unix version 1.2b

/* @(#)bsctr.h	1.3 REL */
#define	TBUFSIZE	512	/* size of circular trace buffer */

struct bsctr {		/* structure of trace item */
	long	tr_time;	/* time stamp */
	char	tr_state;	/* state number */
	char	tr_type;	/* type of record */
	short	tr_val;		/* if type='x' or 'y', length of data */
	char	tr_data[TBUFSIZE-8];	/* data packet of tr_val bytes */
	};

#if defined BSD42
#include <sys/ioctl.h>
#define	BSC_TRDATA	_IO(b,1)
#else
#define	BSC_TRDATA	(('b'<<8)|1)
#endif

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