release/src-rt/include/qmath.h

   1 /*
   2  * qmath functions used in arithmatic and DSP operations where
   3  * fractional operations, saturation support is needed.
   4  *
   5  * Copyright (C) 2010, Broadcom Corporation
   6  * All Rights Reserved.
   7  *
   8  * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;
   9  * the contents of this file may not be disclosed to third parties, copied
  10  * or duplicated in any form, in whole or in part, without the prior
  11  * written permission of Broadcom Corporation.
  12  *
  13  * $Id: qmath.h,v 13.2 2008-01-11 22:58:12 Exp $
  14  */
  15
  16 #ifndef __QMATH_H__
  17 #define __QMATH_H__
  18
  19 #include <typedefs.h>
  20
  21 int16
  22 qm_sat32(int32 op);
  23
  24 int32
  25 qm_mul321616(int16 op1, int16 op2);
  26
  27 int16
  28 qm_mul16(int16 op1, int16 op2);
  29
  30 int32
  31 qm_muls321616(int16 op1, int16 op2);
  32
  33 uint16
  34 qm_mulu16(uint16 op1, uint16 op2);
  35
  36 int16
  37 qm_muls16(int16 op1, int16 op2);
  38
  39 int32
  40 qm_add32(int32 op1, int32 op2);
  41
  42 int16
  43 qm_add16(int16 op1, int16 op2);
  44
  45 int16
  46 qm_sub16(int16 op1, int16 op2);
  47
  48 int32
  49 qm_sub32(int32 op1, int32 op2);
  50
  51 int32
  52 qm_mac321616(int32 acc, int16 op1, int16 op2);
  53
  54 int32
  55 qm_shl32(int32 op, int shift);
  56
  57 int32
  58 qm_shr32(int32 op, int shift);
  59
  60 int16
  61 qm_shl16(int16 op, int shift);
  62
  63 int16
  64 qm_shr16(int16 op, int shift);
  65
  66 int16
  67 qm_norm16(int16 op);
  68
  69 int16
  70 qm_norm32(int32 op);
  71
  72 int16
  73 qm_div_s(int16 num, int16 denom);
  74
  75 int16
  76 qm_abs16(int16 op);
  77
  78 int16
  79 qm_div16(int16 num, int16 denom, int16 *qQuotient);
  80
  81 int32
  82 qm_abs32(int32 op);
  83
  84 int16
  85 qm_div163232(int32 num, int32 denom, int16 *qquotient);
  86
  87 int32
  88 qm_mul323216(int32 op1, int16 op2);
  89
  90 int32
  91 qm_mulsu321616(int16 op1, uint16 op2);
  92
  93 int32
  94 qm_muls323216(int32 op1, int16 op2);
  95
  96 int32
  97 qm_mul32(int32 a, int32 b);
  98
  99 int32
 100 qm_muls32(int32 a, int32 b);
 101
 102 void
 103 qm_log10(int32 N, int16 qN, int16 *log10N, int16 *qLog10N);
 104
 105 void
 106 qm_1byN(int32 N, int16 qN, int32 *result, int16 *qResult);
 107
 108 #endif /* #ifndef __QMATH_H__ */