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/*
* PCN Abstract Machine Emulator
* Authors: Arun Nanda (07/17/91)
* Steve Tuecke (Modifed for better integration with PCN)
*
* Please see the DISCLAIMER file in the top level directory of the
* distribution regarding the provisions under which this software
* is distributed.
*
* usc.c - Microsecond clock package.
*
* The following machine-specific libraries need to be linked in
* with the application using the USC functions:
*
* encore -lpp
* balance -lseq
* symmetry -lseq
*/
#ifndef _PCN_INCLUDE_USC_H
#define _PCN_INCLUDE_USC_H
typedef unsigned long usc_time_t;
extern usc_time_t _p_usc_MD_rollover_val;
extern void _p_usc_init();
extern usc_time_t _p_usc_MD_clock();
#ifdef encore
# define USC_PRIMITIVES_DEFINED 1
extern unsigned *_p_usc_encore_timer;
# define usc_clock() ((usc_time_t) *_p_usc_encore_timer)
# define usc_rollover_val() (_p_usc_MD_rollover_val)
#endif
#if defined(balance) || defined(symmetry)
# define USC_PRIMITIVES_DEFINED 1
# ifndef GETUSCLK
# include <usclkc.h>
# endif
# define usc_clock() ((usc_time_t) getusclk())
# define usc_rollover_val() (_p_usc_MD_rollover_val)
#endif
#if defined(tc2000) || defined(ipsc860) || defined(delta)
# define USC_PRIMITIVES_DEFINED 1
# define usc_clock() _p_usc_MD_clock()
# define usc_rollover_val() (_p_usc_MD_rollover_val)
#endif
#ifdef PCN_USE_BSD_TIME
# define USC_PRIMITIVES_DEFINED 1
# define usc_clock() _p_usc_MD_clock()
# define usc_rollover_val() (_p_usc_MD_rollover_val * 1000000 - 1)
#endif
#ifndef USC_PRIMITIVES_DEFINED
# define usc_clock() 0
# define usc_rollover_val() 0
#endif
#endif /* _PCN_INCLUDE_USC_H */
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