/* document, by any means, electronic, mechanical, or otherwise, in  */
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/*                                                                   */
/*-------------------------------------------------------------------*/
/*                                                                   */
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/*-------------------------------------------------------------------*/
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/*-------------------------------------------------------------------*/
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/*                                                                   */
/*===================================================================*/
/* FILE: basic_op40.c                                                */
/*-------------------------------------------------------------------*/
/* PURPOSE : Modified TIA basic operations for 40-bit accumulators   */
/*===================================================================*/

/***********************************************************************
 *
 *
 *   DESCRIPTION:
 *     
 *     Modified TIA basic operations.  Bit-exact simulation of a
 *     generic 32 bit accumulator DSP chip (fractional math).  This
 *     version has a latching overflow bit (giOverflow) and
 *     non-compound MAC's (One where initial mult does not saturate)
 *     
 *     J. Klein, Conexant Systems, Inc.      11/30/00
 ***********************************************************************/

#ifndef __MATH40
#define __MATH40

#include "typedef_fx.h"

#define MAX_40 ((Word40) 549755813887.0)
#define MIN_40 ((Word40)-549755813888.0)

#define MAX_32 (Word32)0x7fffffffL
#define MIN_32 (Word32)0x80000000L

#define MAX_16 (Word16)0x7fff
#define MIN_16 (Word16)0x8000

/*_________________________________________________________________________
 |                                                                         |
 |                            Function Prototypes                          |
 |_________________________________________________________________________|
*/

/* 40-bit instructions */
/*******************************/
Word40 L_add40(Word40 L_var1, Word32 L_var2);
Word40 L_sub40(Word40 L_var1, Word32 L_var2);
Word40 L_mac40(Word40 L_var3, Word16 var1, Word16 var2); 
Word40 L_msu40(Word40 L_var3, Word16 var1, Word16 var2); 
Word40 L_shr40(Word40 L_var1, Word16 var2);				   
Word40 L_shl40(Word40 L_var1, Word16 var2);				   
Word40 L_sat32_40(Word40 L_var1);							   
Word16 norm32_l40(Word40 L_var1);						Word16 extract_l40(Word40 L_var1);
Word40 L_deposit_l40(Word40 L_var1, Word16 var_in);
   

#endif

/*============================================================================*/
/*---------------------------------- END -------------------------------------*/
/*============================================================================*/