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/*
===========================================================================
File: BASOP.H v.1.1 - 05.Jul.2000
===========================================================================
ITU-T STL BASIC OPERATORS
GLOBAL FUNCTION PROTOTYPES
History:
26.Jan.00 v1.0 Incorporated to the STL from updated G.723.1/G.729
basic operator library (based on basic_op.h) and
G.723.1's basop.h.
05.Jul.00 v1.1 Added 32-bit shiftless mult/mac/msub operators
============================================================================
*/
#ifndef BASOP_H_DEFINED
#define BASOP_H_DEFINED 110
/*___________________________________________________________________________
| |
| Constants and Globals |
| |
| $Id $
|___________________________________________________________________________|
*/
extern Flag Overflow;
extern Flag Carry;
#define MAX_32 (Word32)0x7fffffffL
#define MIN_32 (Word32)0x80000000L
#define MAX_16 (Word16)0x7fff
#define MIN_16 ((Word16)0x8000)
#define UMAX_32 (Word32)0xffffffffL
#define UMIN_32 (Word32)0x00000000L
/*___________________________________________________________________________
| |
| Prototypes for basic arithmetic operators |
|___________________________________________________________________________|
*/
PJ_INLINE(Word16) add (Word16 var1, Word16 var2); /* Short add, 1 */
PJ_INLINE(Word16) sub (Word16 var1, Word16 var2); /* Short sub, 1 */
PJ_INLINE(Word16) abs_s (Word16 var1); /* Short abs, 1 */
Word16 shl (Word16 var1, Word16 var2); /* Short shift left, 1 */
PJ_INLINE(Word16) shl_nocheck(Word16 var1, Word16 var2);
Word16 shr (Word16 var1, Word16 var2); /* Short shift right, 1 */
PJ_INLINE(Word16) shr_nocheck(Word16 var1, Word16 var2);
Word16 mult (Word16 var1, Word16 var2); /* Short mult, 1 */
PJ_INLINE(Word32) L_mult (Word16 var1, Word16 var2); /* Long mult, 1 */
PJ_INLINE(Word16) negate (Word16 var1); /* Short negate, 1 */
PJ_INLINE(Word16) extract_h (Word32 L_var1); /* Extract high, 1 */
PJ_INLINE(Word16) extract_l (Word32 L_var1); /* Extract low, 1 */
PJ_INLINE(Word16) itu_round (Word32 L_var1); /* Round, 1 */
PJ_INLINE(Word32) L_mac (Word32 L_var3, Word16 var1, Word16 var2); /* Mac, 1 */
Word32 L_msu (Word32 L_var3, Word16 var1, Word16 var2); /* Msu, 1 */
Word32 L_macNs (Word32 L_var3, Word16 var1, Word16 var2); /* Mac without
sat, 1 */
Word32 L_msuNs (Word32 L_var3, Word16 var1, Word16 var2); /* Msu without
sat, 1 */
//PJ_INLINE(Word32) L_add (Word32 L_var1, Word32 L_var2); /* Long add, 2 */
PJ_INLINE(Word32) L_sub (Word32 L_var1, Word32 L_var2); /* Long sub, 2 */
Word32 L_add_c (Word32 L_var1, Word32 L_var2); /* Long add with c, 2 */
Word32 L_sub_c (Word32 L_var1, Word32 L_var2); /* Long sub with c, 2 */
Word32 L_negate (Word32 L_var1); /* Long negate, 2 */
Word16 mult_r (Word16 var1, Word16 var2); /* Mult with round, 2 */
PJ_INLINE(Word32) L_shl (Word32 L_var1, Word16 var2); /* Long shift left, 2 */
PJ_INLINE(Word32) L_shr (Word32 L_var1, Word16 var2); /* Long shift right, 2*/
Word16 shr_r (Word16 var1, Word16 var2); /* Shift right with
round, 2 */
Word16 mac_r (Word32 L_var3, Word16 var1, Word16 var2); /* Mac with
rounding,2 */
Word16 msu_r (Word32 L_var3, Word16 var1, Word16 var2); /* Msu with
rounding,2 */
Word32 L_deposit_h (Word16 var1); /* 16 bit var1 -> MSB, 2 */
Word32 L_deposit_l (Word16 var1); /* 16 bit var1 -> LSB, 2 */
Word32 L_shr_r (Word32 L_var1, Word16 var2); /* Long shift right with
round, 3 */
Word32 L_abs (Word32 L_var1); /* Long abs, 3 */
Word32 L_sat (Word32 L_var1); /* Long saturation, 4 */
Word16 norm_s (Word16 var1); /* Short norm, 15 */
Word16 div_s (Word16 var1, Word16 var2); /* Short division, 18 */
Word16 norm_l (Word32 L_var1); /* Long norm, 30 */
/*
Additional G.723.1 operators
*/
Word32 L_mls( Word32, Word16 ) ; /* Weight FFS; currently assigned 1 */
Word16 div_l( Word32, Word16 ) ; /* Weight FFS; currently assigned 1 */
Word16 i_mult(Word16 a, Word16 b); /* Weight FFS; currently assigned 1 */
/*
New shiftless operators, not used in G.729/G.723.1
*/
Word32 L_mult0(Word16 v1, Word16 v2); /* 32-bit Multiply w/o shift 1 */
Word32 L_mac0(Word32 L_v3, Word16 v1, Word16 v2); /* 32-bit Mac w/o shift 1 */
Word32 L_msu0(Word32 L_v3, Word16 v1, Word16 v2); /* 32-bit Msu w/o shift 1 */
/*
Additional G.722.1 operators
*/
UWord32 LU_shl (UWord32 L_var1, Word16 var2);
UWord32 LU_shr (UWord32 L_var1, Word16 var2);
#define INCLUDE_UNSAFE 0
/* Local */
PJ_INLINE(Word16) saturate (Word32 L_var1);
#if INCLUDE_UNSAFE
extern Flag g7221_Overflow;
extern Flag g7221_Carry;
# define SET_OVERFLOW(n) g7221_Overflow = n
# define SET_CARRY(n) g7221_Carry = n
#else
# define SET_OVERFLOW(n)
# define SET_CARRY(n)
# define GET_OVERFLOW() 0
# define GET_CARRY() 0
#endif
#include "basop32_i.h"
#endif /* BASOP_H_DEFINED */
/* ************************* END OF BASIC_OP.H ************************* */
|
