?? c6x.h
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/*****************************************************************************/
/* C6X.H v4.36 */
/* Copyright (c) 1996-2003 Texas Instruments Incorporated */
/*****************************************************************************/
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
unsigned _extu (unsigned, unsigned, unsigned);
int _ext (int, unsigned, unsigned);
unsigned _set (unsigned, unsigned, unsigned);
unsigned _clr (unsigned, unsigned, unsigned);
unsigned _extur (unsigned, int);
int _extr (int, int);
unsigned _setr (unsigned, int);
unsigned _clrr (unsigned, int);
int _sadd (int, int);
long _lsadd (int, long);
int _ssub (int, int);
long _lssub (int, long);
int _sshl (int, unsigned);
int _add2 (int, int);
int _sub2 (int, int);
unsigned _subc (unsigned, unsigned);
unsigned _lmbd (unsigned, unsigned);
int _abs (int);
long _labs (long);
int _sat (long);
unsigned _norm (int);
unsigned _lnorm (long);
int _smpy (int, int);
int _smpyhl (int, int);
int _smpylh (int, int);
int _smpyh (int, int);
int _mpy (int, int);
int _mpyus (unsigned, int);
int _mpysu (int, unsigned);
unsigned _mpyu (unsigned, unsigned);
int _mpyhl (int, int);
int _mpyhuls (unsigned, int);
int _mpyhslu (int, unsigned);
unsigned _mpyhlu (unsigned, unsigned);
int _mpylh (int, int);
int _mpyluhs (unsigned, int);
int _mpylshu (int, unsigned);
unsigned _mpylhu (unsigned, unsigned);
int _mpyh (int, int);
int _mpyhus (unsigned, int);
int _mpyhsu (int, unsigned);
unsigned _mpyhu (unsigned, unsigned);
unsigned _hi(double); /* return the hi 32 bits of a double as an int */
unsigned _lo(double); /* return the lo 23 bits of a double as an int */
double _itod(unsigned, unsigned); /* Create a double from 2 ints */
float _itof(unsigned); /* Create a float from an int */
unsigned _ftoi(float); /* Create an int from a float */
#ifdef _TMS320C6400
int _add4 (int, int);
int _avg2 (int, int);
unsigned _avgu4 (unsigned, unsigned);
int _cmpeq2 (int, int);
int _cmpeq4 (int, int);
int _cmpgt2 (int, int);
unsigned _cmpgtu4 (unsigned, unsigned);
int _dotp2 (int, int);
int _dotpn2 (int, int);
int _dotpnrsu2 (int, unsigned);
int _dotprsu2 (int, unsigned);
int _dotpsu4 (int, unsigned);
unsigned _dotpu4 (unsigned, unsigned);
int _gmpy4 (int, int);
long _ldotp2 (int, int);
int _max2 (int, int);
unsigned _maxu4 (unsigned, unsigned);
int _min2 (int, int);
unsigned _minu4 (unsigned, unsigned);
double _mpy2 (int, int);
double _mpyhi (int, int);
int _mpyhir (int, int);
double _mpyli (int, int);
int _mpylir (int, int);
double _mpysu4 (int, unsigned);
double _mpyu4 (unsigned, unsigned);
unsigned _pack2 (unsigned, unsigned);
unsigned _packh2 (unsigned, unsigned);
unsigned _packh4 (unsigned, unsigned);
unsigned _packhl2 (unsigned, unsigned);
unsigned _packl4 (unsigned, unsigned);
unsigned _packlh2 (unsigned, unsigned);
unsigned _rotl (unsigned, unsigned);
int _sadd2 (int, int);
unsigned _saddu4 (unsigned, unsigned);
int _saddus2 (unsigned, int);
unsigned _shlmb (unsigned, unsigned);
int _shr2 (int, unsigned);
unsigned _shrmb (unsigned, unsigned);
unsigned _shru2 (unsigned, unsigned);
double _smpy2 (int, int);
int _spack2 (int, int);
unsigned _spacku4 (int, int);
int _sshvl (int, int);
int _sshvr (int, int);
int _sub4 (int, int);
int _subabs4 (int, int);
int _abs2 (int);
unsigned _bitc4 (unsigned);
unsigned _bitr (unsigned);
unsigned _deal (unsigned);
int _mvd (int);
unsigned _shfl (unsigned);
unsigned _swap4 (unsigned);
unsigned _unpkhu4 (unsigned);
unsigned _unpklu4 (unsigned);
unsigned _xpnd2 (unsigned);
unsigned _xpnd4 (unsigned);
#endif
/* Is this compiling on a TI compiler? */
#ifndef _TMS320C6X
/* No. __cregister is unknown to other compilers. */
#define __cregister
#endif
/* Do not define these unless the real TI compiler is running. */
#ifdef _TMS320C6X
/* These special identifiers refer to CPU registers. */
extern __cregister volatile unsigned int AMR;
extern __cregister volatile unsigned int CSR;
extern __cregister volatile unsigned int IFR;
extern __cregister volatile unsigned int ISR;
extern __cregister volatile unsigned int ICR;
extern __cregister volatile unsigned int IER;
extern __cregister volatile unsigned int ISTP;
extern __cregister volatile unsigned int IRP;
extern __cregister volatile unsigned int NRP;
#endif
#ifdef _TMS320C6400
extern __cregister volatile unsigned int GFPGFR;
#endif
#ifdef _TMS320C6700
extern __cregister volatile unsigned int FADCR;
extern __cregister volatile unsigned int FAUCR;
extern __cregister volatile unsigned int FMCR;
#endif
#define CPU_FREQUENCY 600000000
/* The clock frequency is the CPU frequency divided by 8, see also Timer1Init in Support_6414.c */
#define CLOCK_PER_SEC (CPU_FREQUENCY / 8) /* Depends on the CPU frequency, used by the timers */
/*
* There are 3 separate timers numbered 0, 1, and 2, accessed through
* special memory addresses. Details are in the TMS320C6000 Peripherals
* Reference Guide, Chapter 13. Within each timer there are 3 timer
* control registers of type int in 3 consecutive ints.
* Provide symbols to refer to each "register" and provide the special address
* as a symbol for use in Timer1Init.
*/
enum timer_registers { TIMER_CONTROL, TIMER_PERIOD, TIMER_COUNTER };
/* Use the special memory address for the real timer. */
#define TIMER_1_BASE ((volatile unsigned int *) 0x01980000)
#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */
/*****************************************************************************/
/* SAVE_AMR - */
/* Define a local 'volatile unsigned int' variable in your interrupt */
/* routine. */
/* When invoking this macro, pass that local variable to save the AMR. */
/* */
/* If you interrupted an assembly coded routine that may be using */
/* circular addressing, and you interrupt into a C coded interrupt */
/* service routine, you need to set the AMR to 0 for the C code and save */
/* off the AMR register, so that it will have the correct value upon */
/* leaving the C interrupt service routine and returning to the assembly */
/* code. */
/* */
/* Add this routine immediately after your local variable definitions */
/* and before the start of your C interrupt code. */
/*****************************************************************************/
#define SAVE_AMR(temp_AMR) \
do { \
temp_AMR = AMR; \
AMR = 0; \
} while (0)
/*****************************************************************************/
/* RESTORE_AMR - */
/* When invoking this macro, pass the same local variable that was passed */
/* to the SAVE_AMR macro. This macro will restore the AMR to the value */
/* it had when interrupted out of the hand assembly routine. */
/* */
/* Add this macro immediately before exiting the C interrupt service */
/* routine. */
/*****************************************************************************/
#define RESTORE_AMR(temp_AMR) \
do { \
AMR = temp_AMR; \
} while (0)
/*****************************************************************************/
/* SAVE_SAT - */
/* Define a local 'volatile unsigned int' variable in your interrupt */
/* routine. */
/* When invoking this macro, pass that local variable to save the SAT */
/* bit. */
/* */
/* If you interrupted a routine that was performing saturated arithmetic */
/* and the interrupt service routine is also performing saturated */
/* arithmetic, then you must save and restore the SAT bit in your */
/* interrupt service routine. */
/* */
/* Add this routine immediately after your local variable definitions */
/* and before the start of your C interrupt code. */
/*****************************************************************************/
#define SAVE_SAT(temp_SAT) \
do { \
temp_SAT = _extu(CSR, 22, 31); \
} while (0)
/*****************************************************************************/
/* RESTORE_SAT - */
/* When invoking this macro, pass the same local variable that was passed */
/* to the SAVE_SAT macro. This macro will restore the SAT bit to the */
/* value it had when your application was interrupted. */
/* */
/* Add this macro immediately before exiting the C interrupt service */
/* routine. */
/*****************************************************************************/
#define RESTORE_SAT(temp_SAT) \
do { \
CSR = _clr(CSR, 9, 9); \
temp_SAT = _sshl(temp_SAT, 31); \
} while (0)
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