diff options
Diffstat (limited to 'src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions')
8 files changed, 0 insertions, 1713 deletions
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_cos_f32.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_cos_f32.c deleted file mode 100644 index bee758bff..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_cos_f32.c +++ /dev/null @@ -1,280 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_cos_f32.c
-*
-* Description: Fast cosine calculation for floating-point values.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Big Endian support added and Merged M0 and M3/M4 Source code.
-*
-* Version 1.0.3 2010/11/29
-* Re-organized the CMSIS folders and updated documentation.
-*
-* Version 1.0.2 2010/11/11
-* Documentation updated.
-*
-* Version 1.0.1 2010/10/05
-* Production release and review comments incorporated.
-*
-* Version 1.0.0 2010/09/20
-* Production release and review comments incorporated.
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-/**
- * @ingroup groupFastMath
- */
-
-/**
- * @defgroup cos Cosine
- *
- * Computes the trigonometric cosine function using a combination of table lookup
- * and cubic interpolation. There are separate functions for
- * Q15, Q31, and floating-point data types.
- * The input to the floating-point version is in radians while the
- * fixed-point Q15 and Q31 have a scaled input with the range
- * [0 +0.9999] mapping to [0 2*pi), Where range excludes 2*pi.
- *
- * The implementation is based on table lookup using 256 values together with cubic interpolation.
- * The steps used are:
- * -# Calculation of the nearest integer table index
- * -# Fetch the four table values a, b, c, and d
- * -# Compute the fractional portion (fract) of the table index.
- * -# Calculation of wa, wb, wc, wd
- * -# The final result equals <code>a*wa + b*wb + c*wc + d*wd</code>
- *
- * where
- * <pre>
- * a=Table[index-1];
- * b=Table[index+0];
- * c=Table[index+1];
- * d=Table[index+2];
- * </pre>
- * and
- * <pre>
- * wa=-(1/6)*fract.^3 + (1/2)*fract.^2 - (1/3)*fract;
- * wb=(1/2)*fract.^3 - fract.^2 - (1/2)*fract + 1;
- * wc=-(1/2)*fract.^3+(1/2)*fract.^2+fract;
- * wd=(1/6)*fract.^3 - (1/6)*fract;
- * </pre>
- */
-
- /**
- * @addtogroup cos
- * @{
- */
-
-
-/**
-* \par
-* <b>Example code for Generation of Cos Table:</b>
-* tableSize = 256;
-* <pre>for(n = -1; n < (tableSize + 2); n++)
-* {
-* cosTable[n+1]= cos(2*pi*n/tableSize);
-* } </pre>
-* where pi value is 3.14159265358979
-*/
-
-static const float32_t cosTable[260] = {
- 0.999698817729949950f, 1.000000000000000000f, 0.999698817729949950f,
- 0.998795449733734130f, 0.997290432453155520f, 0.995184719562530520f,
- 0.992479562759399410f, 0.989176511764526370f,
- 0.985277652740478520f, 0.980785250663757320f, 0.975702106952667240f,
- 0.970031261444091800f, 0.963776051998138430f, 0.956940352916717530f,
- 0.949528157711029050f, 0.941544055938720700f,
- 0.932992815971374510f, 0.923879504203796390f, 0.914209783077239990f,
- 0.903989315032958980f, 0.893224298954010010f, 0.881921291351318360f,
- 0.870086967945098880f, 0.857728600502014160f,
- 0.844853579998016360f, 0.831469595432281490f, 0.817584812641143800f,
- 0.803207516670227050f, 0.788346409797668460f, 0.773010432720184330f,
- 0.757208824157714840f, 0.740951120853424070f,
- 0.724247097969055180f, 0.707106769084930420f, 0.689540565013885500f,
- 0.671558976173400880f, 0.653172850608825680f, 0.634393274784088130f,
- 0.615231573581695560f, 0.595699310302734380f,
- 0.575808167457580570f, 0.555570244789123540f, 0.534997642040252690f,
- 0.514102756977081300f, 0.492898195981979370f, 0.471396744251251220f,
- 0.449611335992813110f, 0.427555084228515630f,
- 0.405241310596466060f, 0.382683426141738890f, 0.359895050525665280f,
- 0.336889863014221190f, 0.313681751489639280f, 0.290284663438797000f,
- 0.266712754964828490f, 0.242980182170867920f,
- 0.219101235270500180f, 0.195090323686599730f, 0.170961886644363400f,
- 0.146730467677116390f, 0.122410677373409270f, 0.098017141222953796f,
- 0.073564566671848297f, 0.049067676067352295f,
- 0.024541229009628296f, 0.000000000000000061f, -0.024541229009628296f,
- -0.049067676067352295f, -0.073564566671848297f, -0.098017141222953796f,
- -0.122410677373409270f, -0.146730467677116390f,
- -0.170961886644363400f, -0.195090323686599730f, -0.219101235270500180f,
- -0.242980182170867920f, -0.266712754964828490f, -0.290284663438797000f,
- -0.313681751489639280f, -0.336889863014221190f,
- -0.359895050525665280f, -0.382683426141738890f, -0.405241310596466060f,
- -0.427555084228515630f, -0.449611335992813110f, -0.471396744251251220f,
- -0.492898195981979370f, -0.514102756977081300f,
- -0.534997642040252690f, -0.555570244789123540f, -0.575808167457580570f,
- -0.595699310302734380f, -0.615231573581695560f, -0.634393274784088130f,
- -0.653172850608825680f, -0.671558976173400880f,
- -0.689540565013885500f, -0.707106769084930420f, -0.724247097969055180f,
- -0.740951120853424070f, -0.757208824157714840f, -0.773010432720184330f,
- -0.788346409797668460f, -0.803207516670227050f,
- -0.817584812641143800f, -0.831469595432281490f, -0.844853579998016360f,
- -0.857728600502014160f, -0.870086967945098880f, -0.881921291351318360f,
- -0.893224298954010010f, -0.903989315032958980f,
- -0.914209783077239990f, -0.923879504203796390f, -0.932992815971374510f,
- -0.941544055938720700f, -0.949528157711029050f, -0.956940352916717530f,
- -0.963776051998138430f, -0.970031261444091800f,
- -0.975702106952667240f, -0.980785250663757320f, -0.985277652740478520f,
- -0.989176511764526370f, -0.992479562759399410f, -0.995184719562530520f,
- -0.997290432453155520f, -0.998795449733734130f,
- -0.999698817729949950f, -1.000000000000000000f, -0.999698817729949950f,
- -0.998795449733734130f, -0.997290432453155520f, -0.995184719562530520f,
- -0.992479562759399410f, -0.989176511764526370f,
- -0.985277652740478520f, -0.980785250663757320f, -0.975702106952667240f,
- -0.970031261444091800f, -0.963776051998138430f, -0.956940352916717530f,
- -0.949528157711029050f, -0.941544055938720700f,
- -0.932992815971374510f, -0.923879504203796390f, -0.914209783077239990f,
- -0.903989315032958980f, -0.893224298954010010f, -0.881921291351318360f,
- -0.870086967945098880f, -0.857728600502014160f,
- -0.844853579998016360f, -0.831469595432281490f, -0.817584812641143800f,
- -0.803207516670227050f, -0.788346409797668460f, -0.773010432720184330f,
- -0.757208824157714840f, -0.740951120853424070f,
- -0.724247097969055180f, -0.707106769084930420f, -0.689540565013885500f,
- -0.671558976173400880f, -0.653172850608825680f, -0.634393274784088130f,
- -0.615231573581695560f, -0.595699310302734380f,
- -0.575808167457580570f, -0.555570244789123540f, -0.534997642040252690f,
- -0.514102756977081300f, -0.492898195981979370f, -0.471396744251251220f,
- -0.449611335992813110f, -0.427555084228515630f,
- -0.405241310596466060f, -0.382683426141738890f, -0.359895050525665280f,
- -0.336889863014221190f, -0.313681751489639280f, -0.290284663438797000f,
- -0.266712754964828490f, -0.242980182170867920f,
- -0.219101235270500180f, -0.195090323686599730f, -0.170961886644363400f,
- -0.146730467677116390f, -0.122410677373409270f, -0.098017141222953796f,
- -0.073564566671848297f, -0.049067676067352295f,
- -0.024541229009628296f, -0.000000000000000184f, 0.024541229009628296f,
- 0.049067676067352295f, 0.073564566671848297f, 0.098017141222953796f,
- 0.122410677373409270f, 0.146730467677116390f,
- 0.170961886644363400f, 0.195090323686599730f, 0.219101235270500180f,
- 0.242980182170867920f, 0.266712754964828490f, 0.290284663438797000f,
- 0.313681751489639280f, 0.336889863014221190f,
- 0.359895050525665280f, 0.382683426141738890f, 0.405241310596466060f,
- 0.427555084228515630f, 0.449611335992813110f, 0.471396744251251220f,
- 0.492898195981979370f, 0.514102756977081300f,
- 0.534997642040252690f, 0.555570244789123540f, 0.575808167457580570f,
- 0.595699310302734380f, 0.615231573581695560f, 0.634393274784088130f,
- 0.653172850608825680f, 0.671558976173400880f,
- 0.689540565013885500f, 0.707106769084930420f, 0.724247097969055180f,
- 0.740951120853424070f, 0.757208824157714840f, 0.773010432720184330f,
- 0.788346409797668460f, 0.803207516670227050f,
- 0.817584812641143800f, 0.831469595432281490f, 0.844853579998016360f,
- 0.857728600502014160f, 0.870086967945098880f, 0.881921291351318360f,
- 0.893224298954010010f, 0.903989315032958980f,
- 0.914209783077239990f, 0.923879504203796390f, 0.932992815971374510f,
- 0.941544055938720700f, 0.949528157711029050f, 0.956940352916717530f,
- 0.963776051998138430f, 0.970031261444091800f,
- 0.975702106952667240f, 0.980785250663757320f, 0.985277652740478520f,
- 0.989176511764526370f, 0.992479562759399410f, 0.995184719562530520f,
- 0.997290432453155520f, 0.998795449733734130f,
- 0.999698817729949950f, 1.000000000000000000f, 0.999698817729949950f,
- 0.998795449733734130f
-};
-
-/**
- * @brief Fast approximation to the trigonometric cosine function for floating-point data.
- * @param[in] x input value in radians.
- * @return cos(x).
- */
-
-
-float32_t arm_cos_f32(
- float32_t x)
-{
- float32_t cosVal, fract, in;
- int32_t index;
- uint32_t tableSize = (uint32_t) TABLE_SIZE;
- float32_t wa, wb, wc, wd;
- float32_t a, b, c, d;
- float32_t *tablePtr;
- int32_t n;
- float32_t fractsq, fractby2, fractby6, fractby3, fractsqby2;
- float32_t oneminusfractby2;
- float32_t frby2xfrsq, frby6xfrsq;
-
- /* input x is in radians */
- /* Scale the input to [0 1] range from [0 2*PI] , divide input by 2*pi */
- in = x * 0.159154943092f;
-
- /* Calculation of floor value of input */
- n = (int32_t) in;
-
- /* Make negative values towards -infinity */
- if(x < 0.0f)
- {
- n = n - 1;
- }
-
- /* Map input value to [0 1] */
- in = in - (float32_t) n;
-
- /* Calculation of index of the table */
- index = (uint32_t) (tableSize * in);
-
- /* fractional value calculation */
- fract = ((float32_t) tableSize * in) - (float32_t) index;
-
- /* Checking min and max index of table */
- if(index < 0)
- {
- index = 0;
- }
- else if(index > 256)
- {
- index = 256;
- }
-
- /* Initialise table pointer */
- tablePtr = (float32_t *) & cosTable[index];
-
- /* Read four nearest values of input value from the cos table */
- a = tablePtr[0];
- b = tablePtr[1];
- c = tablePtr[2];
- d = tablePtr[3];
-
- /* Cubic interpolation process */
- fractsq = fract * fract;
- fractby2 = fract * 0.5f;
- fractby6 = fract * 0.166666667f;
- fractby3 = fract * 0.3333333333333f;
- fractsqby2 = fractsq * 0.5f;
- frby2xfrsq = (fractby2) * fractsq;
- frby6xfrsq = (fractby6) * fractsq;
- oneminusfractby2 = 1.0f - fractby2;
- wb = fractsqby2 - fractby3;
- wc = (fractsqby2 + fract);
- wa = wb - frby6xfrsq;
- wb = frby2xfrsq - fractsq;
- cosVal = wa * a;
- wc = wc - frby2xfrsq;
- wd = (frby6xfrsq) - fractby6;
- wb = wb + oneminusfractby2;
-
- /* Calculate cos value */
- cosVal = (cosVal + (b * wb)) + ((c * wc) + (d * wd));
-
- /* Return the output value */
- return (cosVal);
-
-}
-
-/**
- * @} end of cos group
- */
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_cos_q15.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_cos_q15.c deleted file mode 100644 index 0edf68b89..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_cos_q15.c +++ /dev/null @@ -1,205 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_cos_q15.c
-*
-* Description: Fast cosine calculation for Q15 values.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Big Endian support added and Merged M0 and M3/M4 Source code.
-*
-* Version 1.0.3 2010/11/29
-* Re-organized the CMSIS folders and updated documentation.
-*
-* Version 1.0.2 2010/11/11
-* Documentation updated.
-*
-* Version 1.0.1 2010/10/05
-* Production release and review comments incorporated.
-*
-* Version 1.0.0 2010/09/20
-* Production release and review comments incorporated.
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupFastMath
- */
-
- /**
- * @addtogroup cos
- * @{
- */
-
-/**
-* \par
-* Table Values are in Q15(1.15 Fixed point format) and generation is done in three steps
-* \par
-* First Generate cos values in floating point:
-* tableSize = 256;
-* <pre>for(n = -1; n < (tableSize + 1); n++)
-* {
-* cosTable[n+1]= cos(2*pi*n/tableSize);
-* }</pre>
-* where pi value is 3.14159265358979
-* \par
-* Secondly Convert Floating point to Q15(Fixed point):
-* (cosTable[i] * pow(2, 15))
-* \par
-* Finally Rounding to nearest integer is done
-* cosTable[i] += (cosTable[i] > 0 ? 0.5 :-0.5);
-*/
-
-static const q15_t cosTableQ15[259] = {
- 0x7ff6, 0x7fff, 0x7ff6, 0x7fd9, 0x7fa7, 0x7f62, 0x7f0a, 0x7e9d,
- 0x7e1e, 0x7d8a, 0x7ce4, 0x7c2a, 0x7b5d, 0x7a7d, 0x798a, 0x7885,
- 0x776c, 0x7642, 0x7505, 0x73b6, 0x7255, 0x70e3, 0x6f5f, 0x6dca,
- 0x6c24, 0x6a6e, 0x68a7, 0x66d0, 0x64e9, 0x62f2, 0x60ec, 0x5ed7,
- 0x5cb4, 0x5a82, 0x5843, 0x55f6, 0x539b, 0x5134, 0x4ec0, 0x4c40,
- 0x49b4, 0x471d, 0x447b, 0x41ce, 0x3f17, 0x3c57, 0x398d, 0x36ba,
- 0x33df, 0x30fc, 0x2e11, 0x2b1f, 0x2827, 0x2528, 0x2224, 0x1f1a,
- 0x1c0c, 0x18f9, 0x15e2, 0x12c8, 0xfab, 0xc8c, 0x96b, 0x648,
- 0x324, 0x0, 0xfcdc, 0xf9b8, 0xf695, 0xf374, 0xf055, 0xed38,
- 0xea1e, 0xe707, 0xe3f4, 0xe0e6, 0xdddc, 0xdad8, 0xd7d9, 0xd4e1,
- 0xd1ef, 0xcf04, 0xcc21, 0xc946, 0xc673, 0xc3a9, 0xc0e9, 0xbe32,
- 0xbb85, 0xb8e3, 0xb64c, 0xb3c0, 0xb140, 0xaecc, 0xac65, 0xaa0a,
- 0xa7bd, 0xa57e, 0xa34c, 0xa129, 0x9f14, 0x9d0e, 0x9b17, 0x9930,
- 0x9759, 0x9592, 0x93dc, 0x9236, 0x90a1, 0x8f1d, 0x8dab, 0x8c4a,
- 0x8afb, 0x89be, 0x8894, 0x877b, 0x8676, 0x8583, 0x84a3, 0x83d6,
- 0x831c, 0x8276, 0x81e2, 0x8163, 0x80f6, 0x809e, 0x8059, 0x8027,
- 0x800a, 0x8000, 0x800a, 0x8027, 0x8059, 0x809e, 0x80f6, 0x8163,
- 0x81e2, 0x8276, 0x831c, 0x83d6, 0x84a3, 0x8583, 0x8676, 0x877b,
- 0x8894, 0x89be, 0x8afb, 0x8c4a, 0x8dab, 0x8f1d, 0x90a1, 0x9236,
- 0x93dc, 0x9592, 0x9759, 0x9930, 0x9b17, 0x9d0e, 0x9f14, 0xa129,
- 0xa34c, 0xa57e, 0xa7bd, 0xaa0a, 0xac65, 0xaecc, 0xb140, 0xb3c0,
- 0xb64c, 0xb8e3, 0xbb85, 0xbe32, 0xc0e9, 0xc3a9, 0xc673, 0xc946,
- 0xcc21, 0xcf04, 0xd1ef, 0xd4e1, 0xd7d9, 0xdad8, 0xdddc, 0xe0e6,
- 0xe3f4, 0xe707, 0xea1e, 0xed38, 0xf055, 0xf374, 0xf695, 0xf9b8,
- 0xfcdc, 0x0, 0x324, 0x648, 0x96b, 0xc8c, 0xfab, 0x12c8,
- 0x15e2, 0x18f9, 0x1c0c, 0x1f1a, 0x2224, 0x2528, 0x2827, 0x2b1f,
- 0x2e11, 0x30fc, 0x33df, 0x36ba, 0x398d, 0x3c57, 0x3f17, 0x41ce,
- 0x447b, 0x471d, 0x49b4, 0x4c40, 0x4ec0, 0x5134, 0x539b, 0x55f6,
- 0x5843, 0x5a82, 0x5cb4, 0x5ed7, 0x60ec, 0x62f2, 0x64e9, 0x66d0,
- 0x68a7, 0x6a6e, 0x6c24, 0x6dca, 0x6f5f, 0x70e3, 0x7255, 0x73b6,
- 0x7505, 0x7642, 0x776c, 0x7885, 0x798a, 0x7a7d, 0x7b5d, 0x7c2a,
- 0x7ce4, 0x7d8a, 0x7e1e, 0x7e9d, 0x7f0a, 0x7f62, 0x7fa7, 0x7fd9,
- 0x7ff6, 0x7fff, 0x7ff6
-};
-
-
-/**
- * @brief Fast approximation to the trigonometric cosine function for Q15 data.
- * @param[in] x Scaled input value in radians.
- * @return cos(x).
- *
- * The Q15 input value is in the range [0 +0.9999] and is mapped to a radian value in the range [0 2*pi), Here range excludes 2*pi.
- */
-
-q15_t arm_cos_q15(
- q15_t x)
-{
- q31_t cosVal; /* Temporary variable for output */
- q15_t *tablePtr; /* Pointer to table */
- q15_t in, in2; /* Temporary variables for input */
- q31_t wa, wb, wc, wd; /* Cubic interpolation coefficients */
- q15_t a, b, c, d; /* Four nearest output values */
- q15_t fract, fractCube, fractSquare; /* Variables for fractional value */
- q15_t oneBy6 = 0x1555; /* Fixed point value of 1/6 */
- q15_t tableSpacing = TABLE_SPACING_Q15; /* Table spacing */
- int32_t index; /* Index variable */
-
- in = x;
-
- /* Calculate the nearest index */
- index = (int32_t) in / tableSpacing;
-
- /* Calculate the nearest value of input */
- in2 = (q15_t) index *tableSpacing;
-
- /* Calculation of fractional value */
- fract = (in - in2) << 8;
-
- /* fractSquare = fract * fract */
- fractSquare = (q15_t) ((fract * fract) >> 15);
-
- /* fractCube = fract * fract * fract */
- fractCube = (q15_t) ((fractSquare * fract) >> 15);
-
- /* Checking min and max index of table */
- if(index < 0)
- {
- index = 0;
- }
- else if(index > 256)
- {
- index = 256;
- }
-
- /* Initialise table pointer */
- tablePtr = (q15_t *) & cosTableQ15[index];
-
- /* Cubic interpolation process */
- /* Calculation of wa */
- /* wa = -(oneBy6)*fractCube + (fractSquare >> 1u) - (0x2AAA)*fract; */
- wa = (q31_t) oneBy6 *fractCube;
- wa += (q31_t) 0x2AAA *fract;
- wa = -(wa >> 15);
- wa += (fractSquare >> 1u);
-
- /* Read first nearest value of output from the cos table */
- a = *tablePtr++;
-
- /* cosVal = a * wa */
- cosVal = a * wa;
-
- /* Calculation of wb */
- wb = (((fractCube >> 1u) - fractSquare) - (fract >> 1u)) + 0x7FFF;
-
- /* Read second nearest value of output from the cos table */
- b = *tablePtr++;
-
- /* cosVal += b*wb */
- cosVal += b * wb;
-
- /* Calculation of wc */
- wc = -(q31_t) fractCube + fractSquare;
- wc = (wc >> 1u) + fract;
-
- /* Read third nearest value of output from the cos table */
- c = *tablePtr++;
-
- /* cosVal += c*wc */
- cosVal += c * wc;
-
- /* Calculation of wd */
- /* wd = (oneBy6)*fractCube - (oneBy6)*fract; */
- fractCube = fractCube - fract;
- wd = ((q15_t) (((q31_t) oneBy6 * fractCube) >> 15));
-
- /* Read fourth nearest value of output from the cos table */
- d = *tablePtr++;
-
- /* cosVal += d*wd; */
- cosVal += d * wd;
-
- /* Convert output value in 1.15(q15) format and saturate */
- cosVal = __SSAT((cosVal >> 15), 16);
-
- /* Return the output value in 1.15(q15) format */
- return ((q15_t) cosVal);
-
-}
-
-/**
- * @} end of cos group
- */
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_cos_q31.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_cos_q31.c deleted file mode 100644 index 1326215fe..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_cos_q31.c +++ /dev/null @@ -1,239 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_cos_q31.c
-*
-* Description: Fast cosine calculation for Q31 values.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Big Endian support added and Merged M0 and M3/M4 Source code.
-*
-* Version 1.0.3 2010/11/29
-* Re-organized the CMSIS folders and updated documentation.
-*
-* Version 1.0.2 2010/11/11
-* Documentation updated.
-*
-* Version 1.0.1 2010/10/05
-* Production release and review comments incorporated.
-*
-* Version 1.0.0 2010/09/20
-* Production release and review comments incorporated.
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupFastMath
- */
-
- /**
- * @addtogroup cos
- * @{
- */
-
-/**
- * \par
- * Table Values are in Q31(1.31 Fixed point format) and generation is done in three steps
- * First Generate cos values in floating point:
- * tableSize = 256;
- * <pre>for(n = -1; n < (tableSize + 1); n++)
- * {
- * cosTable[n+1]= cos(2*pi*n/tableSize);
- * } </pre>
- * where pi value is 3.14159265358979
- * \par
- * Secondly Convert Floating point to Q31(Fixed point):
- * (cosTable[i] * pow(2, 31))
- * \par
- * Finally Rounding to nearest integer is done
- * cosTable[i] += (cosTable[i] > 0 ? 0.5 :-0.5);
- */
-
-
-static const q31_t cosTableQ31[259] = {
- 0x7ff62182, 0x7fffffff, 0x7ff62182, 0x7fd8878e, 0x7fa736b4, 0x7f62368f,
- 0x7f0991c4, 0x7e9d55fc,
- 0x7e1d93ea, 0x7d8a5f40, 0x7ce3ceb2, 0x7c29fbee, 0x7b5d039e, 0x7a7d055b,
- 0x798a23b1, 0x78848414,
- 0x776c4edb, 0x7641af3d, 0x7504d345, 0x73b5ebd1, 0x72552c85, 0x70e2cbc6,
- 0x6f5f02b2, 0x6dca0d14,
- 0x6c242960, 0x6a6d98a4, 0x68a69e81, 0x66cf8120, 0x64e88926, 0x62f201ac,
- 0x60ec3830, 0x5ed77c8a,
- 0x5cb420e0, 0x5a82799a, 0x5842dd54, 0x55f5a4d2, 0x539b2af0, 0x5133cc94,
- 0x4ebfe8a5, 0x4c3fdff4,
- 0x49b41533, 0x471cece7, 0x447acd50, 0x41ce1e65, 0x3f1749b8, 0x3c56ba70,
- 0x398cdd32, 0x36ba2014,
- 0x33def287, 0x30fbc54d, 0x2e110a62, 0x2b1f34eb, 0x2826b928, 0x25280c5e,
- 0x2223a4c5, 0x1f19f97b,
- 0x1c0b826a, 0x18f8b83c, 0x15e21445, 0x12c8106f, 0xfab272b, 0xc8bd35e,
- 0x96a9049, 0x647d97c,
- 0x3242abf, 0x0, 0xfcdbd541, 0xf9b82684, 0xf6956fb7, 0xf3742ca2, 0xf054d8d5,
- 0xed37ef91,
- 0xea1debbb, 0xe70747c4, 0xe3f47d96, 0xe0e60685, 0xdddc5b3b, 0xdad7f3a2,
- 0xd7d946d8, 0xd4e0cb15,
- 0xd1eef59e, 0xcf043ab3, 0xcc210d79, 0xc945dfec, 0xc67322ce, 0xc3a94590,
- 0xc0e8b648, 0xbe31e19b,
- 0xbb8532b0, 0xb8e31319, 0xb64beacd, 0xb3c0200c, 0xb140175b, 0xaecc336c,
- 0xac64d510, 0xaa0a5b2e,
- 0xa7bd22ac, 0xa57d8666, 0xa34bdf20, 0xa1288376, 0x9f13c7d0, 0x9d0dfe54,
- 0x9b1776da, 0x99307ee0,
- 0x9759617f, 0x9592675c, 0x93dbd6a0, 0x9235f2ec, 0x90a0fd4e, 0x8f1d343a,
- 0x8daad37b, 0x8c4a142f,
- 0x8afb2cbb, 0x89be50c3, 0x8893b125, 0x877b7bec, 0x8675dc4f, 0x8582faa5,
- 0x84a2fc62, 0x83d60412,
- 0x831c314e, 0x8275a0c0, 0x81e26c16, 0x8162aa04, 0x80f66e3c, 0x809dc971,
- 0x8058c94c, 0x80277872,
- 0x8009de7e, 0x80000000, 0x8009de7e, 0x80277872, 0x8058c94c, 0x809dc971,
- 0x80f66e3c, 0x8162aa04,
- 0x81e26c16, 0x8275a0c0, 0x831c314e, 0x83d60412, 0x84a2fc62, 0x8582faa5,
- 0x8675dc4f, 0x877b7bec,
- 0x8893b125, 0x89be50c3, 0x8afb2cbb, 0x8c4a142f, 0x8daad37b, 0x8f1d343a,
- 0x90a0fd4e, 0x9235f2ec,
- 0x93dbd6a0, 0x9592675c, 0x9759617f, 0x99307ee0, 0x9b1776da, 0x9d0dfe54,
- 0x9f13c7d0, 0xa1288376,
- 0xa34bdf20, 0xa57d8666, 0xa7bd22ac, 0xaa0a5b2e, 0xac64d510, 0xaecc336c,
- 0xb140175b, 0xb3c0200c,
- 0xb64beacd, 0xb8e31319, 0xbb8532b0, 0xbe31e19b, 0xc0e8b648, 0xc3a94590,
- 0xc67322ce, 0xc945dfec,
- 0xcc210d79, 0xcf043ab3, 0xd1eef59e, 0xd4e0cb15, 0xd7d946d8, 0xdad7f3a2,
- 0xdddc5b3b, 0xe0e60685,
- 0xe3f47d96, 0xe70747c4, 0xea1debbb, 0xed37ef91, 0xf054d8d5, 0xf3742ca2,
- 0xf6956fb7, 0xf9b82684,
- 0xfcdbd541, 0x0, 0x3242abf, 0x647d97c, 0x96a9049, 0xc8bd35e, 0xfab272b,
- 0x12c8106f,
- 0x15e21445, 0x18f8b83c, 0x1c0b826a, 0x1f19f97b, 0x2223a4c5, 0x25280c5e,
- 0x2826b928, 0x2b1f34eb,
- 0x2e110a62, 0x30fbc54d, 0x33def287, 0x36ba2014, 0x398cdd32, 0x3c56ba70,
- 0x3f1749b8, 0x41ce1e65,
- 0x447acd50, 0x471cece7, 0x49b41533, 0x4c3fdff4, 0x4ebfe8a5, 0x5133cc94,
- 0x539b2af0, 0x55f5a4d2,
- 0x5842dd54, 0x5a82799a, 0x5cb420e0, 0x5ed77c8a, 0x60ec3830, 0x62f201ac,
- 0x64e88926, 0x66cf8120,
- 0x68a69e81, 0x6a6d98a4, 0x6c242960, 0x6dca0d14, 0x6f5f02b2, 0x70e2cbc6,
- 0x72552c85, 0x73b5ebd1,
- 0x7504d345, 0x7641af3d, 0x776c4edb, 0x78848414, 0x798a23b1, 0x7a7d055b,
- 0x7b5d039e, 0x7c29fbee,
- 0x7ce3ceb2, 0x7d8a5f40, 0x7e1d93ea, 0x7e9d55fc, 0x7f0991c4, 0x7f62368f,
- 0x7fa736b4, 0x7fd8878e,
- 0x7ff62182, 0x7fffffff, 0x7ff62182
-};
-
-/**
- * @brief Fast approximation to the trigonometric cosine function for Q31 data.
- * @param[in] x Scaled input value in radians.
- * @return cos(x).
- *
- * The Q31 input value is in the range [0 +0.9999] and is mapped to a radian value in the range [0 2*pi), Here range excludes 2*pi.
- */
-
-q31_t arm_cos_q31(
- q31_t x)
-{
- q31_t cosVal, in, in2; /* Temporary variables for input, output */
- q31_t wa, wb, wc, wd; /* Cubic interpolation coefficients */
- q31_t a, b, c, d; /* Four nearest output values */
- q31_t *tablePtr; /* Pointer to table */
- q31_t fract, fractCube, fractSquare; /* Temporary values for fractional values */
- q31_t oneBy6 = 0x15555555; /* Fixed point value of 1/6 */
- q31_t tableSpacing = TABLE_SPACING_Q31; /* Table spacing */
- q31_t temp; /* Temporary variable for intermediate process */
- int32_t index; /* Index variable */
-
- in = x;
-
- /* Calculate the nearest index */
- index = in / tableSpacing;
-
- /* Calculate the nearest value of input */
- in2 = ((q31_t) index) * tableSpacing;
-
- /* Calculation of fractional value */
- fract = (in - in2) << 8;
-
- /* fractSquare = fract * fract */
- fractSquare = ((q31_t) (((q63_t) fract * fract) >> 32));
- fractSquare = fractSquare << 1;
-
- /* fractCube = fract * fract * fract */
- fractCube = ((q31_t) (((q63_t) fractSquare * fract) >> 32));
- fractCube = fractCube << 1;
-
- /* Checking min and max index of table */
- if(index < 0)
- {
- index = 0;
- }
- else if(index > 256)
- {
- index = 256;
- }
-
- /* Initialise table pointer */
- tablePtr = (q31_t *) & cosTableQ31[index];
-
- /* Cubic interpolation process */
- /* Calculation of wa */
- /* wa = -(oneBy6)*fractCube + (fractSquare >> 1u) - (0x2AAAAAAA)*fract; */
- wa = ((q31_t) (((q63_t) oneBy6 * fractCube) >> 32));
- temp = 0x2AAAAAAA;
- wa = (q31_t) ((((q63_t) wa << 32) + ((q63_t) temp * fract)) >> 32);
- wa = -(wa << 1u);
- wa += (fractSquare >> 1u);
-
- /* Read first nearest value of output from the cos table */
- a = *tablePtr++;
-
- /* cosVal = a*wa */
- cosVal = ((q31_t) (((q63_t) a * wa) >> 32));
-
- /* q31(1.31) Fixed point value of 1 */
- temp = 0x7FFFFFFF;
-
- /* Calculation of wb */
- wb = ((fractCube >> 1u) - (fractSquare + (fract >> 1u))) + temp;
- /* Read second nearest value of output from the cos table */
- b = *tablePtr++;
-
- /* cosVal += b*wb */
- cosVal = (q31_t) ((((q63_t) cosVal << 32) + ((q63_t) b * (wb))) >> 32);
-
- /* Calculation of wc */
- wc = -fractCube + fractSquare;
- wc = (wc >> 1u) + fract;
- /* Read third nearest values of output value from the cos table */
- c = *tablePtr++;
-
- /* cosVal += c*wc */
- cosVal = (q31_t) ((((q63_t) cosVal << 32) + ((q63_t) c * (wc))) >> 32);
-
- /* Calculation of wd */
- /* wd = (oneBy6)*fractCube - (oneBy6)*fract; */
- fractCube = fractCube - fract;
- wd = ((q31_t) (((q63_t) oneBy6 * fractCube) >> 32));
- wd = (wd << 1u);
-
- /* Read fourth nearest value of output from the cos table */
- d = *tablePtr++;
-
- /* cosVal += d*wd; */
- cosVal = (q31_t) ((((q63_t) cosVal << 32) + ((q63_t) d * (wd))) >> 32);
-
-
- /* convert cosVal in 2.30 format to 1.31 format */
- return (__QADD(cosVal, cosVal));
-
-}
-
-/**
- * @} end of cos group
- */
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sin_f32.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sin_f32.c deleted file mode 100644 index bfe58d5c8..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sin_f32.c +++ /dev/null @@ -1,281 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_sin_f32.c
-*
-* Description: Fast sine calculation for floating-point values.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Big Endian support added and Merged M0 and M3/M4 Source code.
-*
-* Version 1.0.3 2010/11/29
-* Re-organized the CMSIS folders and updated documentation.
-*
-* Version 1.0.2 2010/11/11
-* Documentation updated.
-*
-* Version 1.0.1 2010/10/05
-* Production release and review comments incorporated.
-*
-* Version 1.0.0 2010/09/20
-* Production release and review comments incorporated.
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupFastMath
- */
-
-/**
- * @defgroup sin Sine
- *
- * Computes the trigonometric sine function using a combination of table lookup
- * and cubic interpolation. There are separate functions for
- * Q15, Q31, and floating-point data types.
- * The input to the floating-point version is in radians while the
- * fixed-point Q15 and Q31 have a scaled input with the range
- * [0 +0.9999] mapping to [0 2*pi), Where range excludes 2*pi.
- *
- * The implementation is based on table lookup using 256 values together with cubic interpolation.
- * The steps used are:
- * -# Calculation of the nearest integer table index
- * -# Fetch the four table values a, b, c, and d
- * -# Compute the fractional portion (fract) of the table index.
- * -# Calculation of wa, wb, wc, wd
- * -# The final result equals <code>a*wa + b*wb + c*wc + d*wd</code>
- *
- * where
- * <pre>
- * a=Table[index-1];
- * b=Table[index+0];
- * c=Table[index+1];
- * d=Table[index+2];
- * </pre>
- * and
- * <pre>
- * wa=-(1/6)*fract.^3 + (1/2)*fract.^2 - (1/3)*fract;
- * wb=(1/2)*fract.^3 - fract.^2 - (1/2)*fract + 1;
- * wc=-(1/2)*fract.^3+(1/2)*fract.^2+fract;
- * wd=(1/6)*fract.^3 - (1/6)*fract;
- * </pre>
- */
-
-/**
- * @addtogroup sin
- * @{
- */
-
-
-/**
- * \par
- * Example code for Generation of Floating-point Sin Table:
- * tableSize = 256;
- * <pre>for(n = -1; n < (tableSize + 1); n++)
- * {
- * sinTable[n+1]=sin(2*pi*n/tableSize);
- * }</pre>
- * \par
- * where pi value is 3.14159265358979
- */
-
-static const float32_t sinTable[259] = {
- -0.024541229009628296f, 0.000000000000000000f, 0.024541229009628296f,
- 0.049067676067352295f, 0.073564566671848297f, 0.098017141222953796f,
- 0.122410677373409270f, 0.146730467677116390f,
- 0.170961886644363400f, 0.195090323686599730f, 0.219101235270500180f,
- 0.242980182170867920f, 0.266712754964828490f, 0.290284663438797000f,
- 0.313681751489639280f, 0.336889863014221190f,
- 0.359895050525665280f, 0.382683426141738890f, 0.405241310596466060f,
- 0.427555084228515630f, 0.449611335992813110f, 0.471396744251251220f,
- 0.492898195981979370f, 0.514102756977081300f,
- 0.534997642040252690f, 0.555570244789123540f, 0.575808167457580570f,
- 0.595699310302734380f, 0.615231573581695560f, 0.634393274784088130f,
- 0.653172850608825680f, 0.671558976173400880f,
- 0.689540565013885500f, 0.707106769084930420f, 0.724247097969055180f,
- 0.740951120853424070f, 0.757208824157714840f, 0.773010432720184330f,
- 0.788346409797668460f, 0.803207516670227050f,
- 0.817584812641143800f, 0.831469595432281490f, 0.844853579998016360f,
- 0.857728600502014160f, 0.870086967945098880f, 0.881921291351318360f,
- 0.893224298954010010f, 0.903989315032958980f,
- 0.914209783077239990f, 0.923879504203796390f, 0.932992815971374510f,
- 0.941544055938720700f, 0.949528157711029050f, 0.956940352916717530f,
- 0.963776051998138430f, 0.970031261444091800f,
- 0.975702106952667240f, 0.980785250663757320f, 0.985277652740478520f,
- 0.989176511764526370f, 0.992479562759399410f, 0.995184719562530520f,
- 0.997290432453155520f, 0.998795449733734130f,
- 0.999698817729949950f, 1.000000000000000000f, 0.999698817729949950f,
- 0.998795449733734130f, 0.997290432453155520f, 0.995184719562530520f,
- 0.992479562759399410f, 0.989176511764526370f,
- 0.985277652740478520f, 0.980785250663757320f, 0.975702106952667240f,
- 0.970031261444091800f, 0.963776051998138430f, 0.956940352916717530f,
- 0.949528157711029050f, 0.941544055938720700f,
- 0.932992815971374510f, 0.923879504203796390f, 0.914209783077239990f,
- 0.903989315032958980f, 0.893224298954010010f, 0.881921291351318360f,
- 0.870086967945098880f, 0.857728600502014160f,
- 0.844853579998016360f, 0.831469595432281490f, 0.817584812641143800f,
- 0.803207516670227050f, 0.788346409797668460f, 0.773010432720184330f,
- 0.757208824157714840f, 0.740951120853424070f,
- 0.724247097969055180f, 0.707106769084930420f, 0.689540565013885500f,
- 0.671558976173400880f, 0.653172850608825680f, 0.634393274784088130f,
- 0.615231573581695560f, 0.595699310302734380f,
- 0.575808167457580570f, 0.555570244789123540f, 0.534997642040252690f,
- 0.514102756977081300f, 0.492898195981979370f, 0.471396744251251220f,
- 0.449611335992813110f, 0.427555084228515630f,
- 0.405241310596466060f, 0.382683426141738890f, 0.359895050525665280f,
- 0.336889863014221190f, 0.313681751489639280f, 0.290284663438797000f,
- 0.266712754964828490f, 0.242980182170867920f,
- 0.219101235270500180f, 0.195090323686599730f, 0.170961886644363400f,
- 0.146730467677116390f, 0.122410677373409270f, 0.098017141222953796f,
- 0.073564566671848297f, 0.049067676067352295f,
- 0.024541229009628296f, 0.000000000000000122f, -0.024541229009628296f,
- -0.049067676067352295f, -0.073564566671848297f, -0.098017141222953796f,
- -0.122410677373409270f, -0.146730467677116390f,
- -0.170961886644363400f, -0.195090323686599730f, -0.219101235270500180f,
- -0.242980182170867920f, -0.266712754964828490f, -0.290284663438797000f,
- -0.313681751489639280f, -0.336889863014221190f,
- -0.359895050525665280f, -0.382683426141738890f, -0.405241310596466060f,
- -0.427555084228515630f, -0.449611335992813110f, -0.471396744251251220f,
- -0.492898195981979370f, -0.514102756977081300f,
- -0.534997642040252690f, -0.555570244789123540f, -0.575808167457580570f,
- -0.595699310302734380f, -0.615231573581695560f, -0.634393274784088130f,
- -0.653172850608825680f, -0.671558976173400880f,
- -0.689540565013885500f, -0.707106769084930420f, -0.724247097969055180f,
- -0.740951120853424070f, -0.757208824157714840f, -0.773010432720184330f,
- -0.788346409797668460f, -0.803207516670227050f,
- -0.817584812641143800f, -0.831469595432281490f, -0.844853579998016360f,
- -0.857728600502014160f, -0.870086967945098880f, -0.881921291351318360f,
- -0.893224298954010010f, -0.903989315032958980f,
- -0.914209783077239990f, -0.923879504203796390f, -0.932992815971374510f,
- -0.941544055938720700f, -0.949528157711029050f, -0.956940352916717530f,
- -0.963776051998138430f, -0.970031261444091800f,
- -0.975702106952667240f, -0.980785250663757320f, -0.985277652740478520f,
- -0.989176511764526370f, -0.992479562759399410f, -0.995184719562530520f,
- -0.997290432453155520f, -0.998795449733734130f,
- -0.999698817729949950f, -1.000000000000000000f, -0.999698817729949950f,
- -0.998795449733734130f, -0.997290432453155520f, -0.995184719562530520f,
- -0.992479562759399410f, -0.989176511764526370f,
- -0.985277652740478520f, -0.980785250663757320f, -0.975702106952667240f,
- -0.970031261444091800f, -0.963776051998138430f, -0.956940352916717530f,
- -0.949528157711029050f, -0.941544055938720700f,
- -0.932992815971374510f, -0.923879504203796390f, -0.914209783077239990f,
- -0.903989315032958980f, -0.893224298954010010f, -0.881921291351318360f,
- -0.870086967945098880f, -0.857728600502014160f,
- -0.844853579998016360f, -0.831469595432281490f, -0.817584812641143800f,
- -0.803207516670227050f, -0.788346409797668460f, -0.773010432720184330f,
- -0.757208824157714840f, -0.740951120853424070f,
- -0.724247097969055180f, -0.707106769084930420f, -0.689540565013885500f,
- -0.671558976173400880f, -0.653172850608825680f, -0.634393274784088130f,
- -0.615231573581695560f, -0.595699310302734380f,
- -0.575808167457580570f, -0.555570244789123540f, -0.534997642040252690f,
- -0.514102756977081300f, -0.492898195981979370f, -0.471396744251251220f,
- -0.449611335992813110f, -0.427555084228515630f,
- -0.405241310596466060f, -0.382683426141738890f, -0.359895050525665280f,
- -0.336889863014221190f, -0.313681751489639280f, -0.290284663438797000f,
- -0.266712754964828490f, -0.242980182170867920f,
- -0.219101235270500180f, -0.195090323686599730f, -0.170961886644363400f,
- -0.146730467677116390f, -0.122410677373409270f, -0.098017141222953796f,
- -0.073564566671848297f, -0.049067676067352295f,
- -0.024541229009628296f, -0.000000000000000245f, 0.024541229009628296f
-};
-
-
-/**
- * @brief Fast approximation to the trigonometric sine function for floating-point data.
- * @param[in] x input value in radians.
- * @return sin(x).
- */
-
-float32_t arm_sin_f32(
- float32_t x)
-{
- float32_t sinVal, fract, in; /* Temporary variables for input, output */
- int32_t index; /* Index variable */
- uint32_t tableSize = (uint32_t) TABLE_SIZE; /* Initialise tablesize */
- float32_t wa, wb, wc, wd; /* Cubic interpolation coefficients */
- float32_t a, b, c, d; /* Four nearest output values */
- float32_t *tablePtr; /* Pointer to table */
- int32_t n;
- float32_t fractsq, fractby2, fractby6, fractby3, fractsqby2;
- float32_t oneminusfractby2;
- float32_t frby2xfrsq, frby6xfrsq;
-
- /* input x is in radians */
- /* Scale the input to [0 1] range from [0 2*PI] , divide input by 2*pi */
- in = x * 0.159154943092f;
-
- /* Calculation of floor value of input */
- n = (int32_t) in;
-
- /* Make negative values towards -infinity */
- if(x < 0.0f)
- {
- n = n - 1;
- }
-
- /* Map input value to [0 1] */
- in = in - (float32_t) n;
-
- /* Calculation of index of the table */
- index = (uint32_t) (tableSize * in);
-
- /* fractional value calculation */
- fract = ((float32_t) tableSize * in) - (float32_t) index;
-
- /* Checking min and max index of table */
- if(index < 0)
- {
- index = 0;
- }
- else if(index > 256)
- {
- index = 256;
- }
-
- /* Initialise table pointer */
- tablePtr = (float32_t *) & sinTable[index];
-
- /* Read four nearest values of input value from the sin table */
- a = tablePtr[0];
- b = tablePtr[1];
- c = tablePtr[2];
- d = tablePtr[3];
-
- /* Cubic interpolation process */
- fractsq = fract * fract;
- fractby2 = fract * 0.5f;
- fractby6 = fract * 0.166666667f;
- fractby3 = fract * 0.3333333333333f;
- fractsqby2 = fractsq * 0.5f;
- frby2xfrsq = (fractby2) * fractsq;
- frby6xfrsq = (fractby6) * fractsq;
- oneminusfractby2 = 1.0f - fractby2;
- wb = fractsqby2 - fractby3;
- wc = (fractsqby2 + fract);
- wa = wb - frby6xfrsq;
- wb = frby2xfrsq - fractsq;
- sinVal = wa * a;
- wc = wc - frby2xfrsq;
- wd = (frby6xfrsq) - fractby6;
- wb = wb + oneminusfractby2;
-
- /* Calculate sin value */
- sinVal = (sinVal + (b * wb)) + ((c * wc) + (d * wd));
-
- /* Return the output value */
- return (sinVal);
-
-}
-
-/**
- * @} end of sin group
- */
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sin_q15.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sin_q15.c deleted file mode 100644 index b53ca3ecc..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sin_q15.c +++ /dev/null @@ -1,208 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_sin_q15.c
-*
-* Description: Fast sine calculation for Q15 values.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Big Endian support added and Merged M0 and M3/M4 Source code.
-*
-* Version 1.0.3 2010/11/29
-* Re-organized the CMSIS folders and updated documentation.
-*
-* Version 1.0.2 2010/11/11
-* Documentation updated.
-*
-* Version 1.0.1 2010/10/05
-* Production release and review comments incorporated.
-*
-* Version 1.0.0 2010/09/20
-* Production release and review comments incorporated.
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupFastMath
- */
-
- /**
- * @addtogroup sin
- * @{
- */
-
-
-/**
- * \par
- * Example code for Generation of Q15 Sin Table:
- * \par
- * <pre>tableSize = 256;
- * for(n = -1; n < (tableSize + 1); n++)
- * {
- * sinTable[n+1]=sin(2*pi*n/tableSize);
- * } </pre>
- * where pi value is 3.14159265358979
- * \par
- * Convert Floating point to Q15(Fixed point):
- * (sinTable[i] * pow(2, 15))
- * \par
- * rounding to nearest integer is done
- * sinTable[i] += (sinTable[i] > 0 ? 0.5 :-0.5);
- */
-
-
-static const q15_t sinTableQ15[259] = {
- 0xfcdc, 0x0, 0x324, 0x648, 0x96b, 0xc8c, 0xfab, 0x12c8,
- 0x15e2, 0x18f9, 0x1c0c, 0x1f1a, 0x2224, 0x2528, 0x2827, 0x2b1f,
- 0x2e11, 0x30fc, 0x33df, 0x36ba, 0x398d, 0x3c57, 0x3f17, 0x41ce,
- 0x447b, 0x471d, 0x49b4, 0x4c40, 0x4ec0, 0x5134, 0x539b, 0x55f6,
- 0x5843, 0x5a82, 0x5cb4, 0x5ed7, 0x60ec, 0x62f2, 0x64e9, 0x66d0,
- 0x68a7, 0x6a6e, 0x6c24, 0x6dca, 0x6f5f, 0x70e3, 0x7255, 0x73b6,
- 0x7505, 0x7642, 0x776c, 0x7885, 0x798a, 0x7a7d, 0x7b5d, 0x7c2a,
- 0x7ce4, 0x7d8a, 0x7e1e, 0x7e9d, 0x7f0a, 0x7f62, 0x7fa7, 0x7fd9,
- 0x7ff6, 0x7fff, 0x7ff6, 0x7fd9, 0x7fa7, 0x7f62, 0x7f0a, 0x7e9d,
- 0x7e1e, 0x7d8a, 0x7ce4, 0x7c2a, 0x7b5d, 0x7a7d, 0x798a, 0x7885,
- 0x776c, 0x7642, 0x7505, 0x73b6, 0x7255, 0x70e3, 0x6f5f, 0x6dca,
- 0x6c24, 0x6a6e, 0x68a7, 0x66d0, 0x64e9, 0x62f2, 0x60ec, 0x5ed7,
- 0x5cb4, 0x5a82, 0x5843, 0x55f6, 0x539b, 0x5134, 0x4ec0, 0x4c40,
- 0x49b4, 0x471d, 0x447b, 0x41ce, 0x3f17, 0x3c57, 0x398d, 0x36ba,
- 0x33df, 0x30fc, 0x2e11, 0x2b1f, 0x2827, 0x2528, 0x2224, 0x1f1a,
- 0x1c0c, 0x18f9, 0x15e2, 0x12c8, 0xfab, 0xc8c, 0x96b, 0x648,
- 0x324, 0x0, 0xfcdc, 0xf9b8, 0xf695, 0xf374, 0xf055, 0xed38,
- 0xea1e, 0xe707, 0xe3f4, 0xe0e6, 0xdddc, 0xdad8, 0xd7d9, 0xd4e1,
- 0xd1ef, 0xcf04, 0xcc21, 0xc946, 0xc673, 0xc3a9, 0xc0e9, 0xbe32,
- 0xbb85, 0xb8e3, 0xb64c, 0xb3c0, 0xb140, 0xaecc, 0xac65, 0xaa0a,
- 0xa7bd, 0xa57e, 0xa34c, 0xa129, 0x9f14, 0x9d0e, 0x9b17, 0x9930,
- 0x9759, 0x9592, 0x93dc, 0x9236, 0x90a1, 0x8f1d, 0x8dab, 0x8c4a,
- 0x8afb, 0x89be, 0x8894, 0x877b, 0x8676, 0x8583, 0x84a3, 0x83d6,
- 0x831c, 0x8276, 0x81e2, 0x8163, 0x80f6, 0x809e, 0x8059, 0x8027,
- 0x800a, 0x8000, 0x800a, 0x8027, 0x8059, 0x809e, 0x80f6, 0x8163,
- 0x81e2, 0x8276, 0x831c, 0x83d6, 0x84a3, 0x8583, 0x8676, 0x877b,
- 0x8894, 0x89be, 0x8afb, 0x8c4a, 0x8dab, 0x8f1d, 0x90a1, 0x9236,
- 0x93dc, 0x9592, 0x9759, 0x9930, 0x9b17, 0x9d0e, 0x9f14, 0xa129,
- 0xa34c, 0xa57e, 0xa7bd, 0xaa0a, 0xac65, 0xaecc, 0xb140, 0xb3c0,
- 0xb64c, 0xb8e3, 0xbb85, 0xbe32, 0xc0e9, 0xc3a9, 0xc673, 0xc946,
- 0xcc21, 0xcf04, 0xd1ef, 0xd4e1, 0xd7d9, 0xdad8, 0xdddc, 0xe0e6,
- 0xe3f4, 0xe707, 0xea1e, 0xed38, 0xf055, 0xf374, 0xf695, 0xf9b8,
- 0xfcdc, 0x0, 0x324
-};
-
-
-/**
- * @brief Fast approximation to the trigonometric sine function for Q15 data.
- * @param[in] x Scaled input value in radians.
- * @return sin(x).
- *
- * The Q15 input value is in the range [0 +0.9999] and is mapped to a radian value in the range [0 2*pi), Here range excludes 2*pi.
- */
-
-q15_t arm_sin_q15(
- q15_t x)
-{
- q31_t sinVal; /* Temporary variables output */
- q15_t *tablePtr; /* Pointer to table */
- q15_t fract, in, in2; /* Temporary variables for input, output */
- q31_t wa, wb, wc, wd; /* Cubic interpolation coefficients */
- q15_t a, b, c, d; /* Four nearest output values */
- q15_t fractCube, fractSquare; /* Temporary values for fractional value */
- q15_t oneBy6 = 0x1555; /* Fixed point value of 1/6 */
- q15_t tableSpacing = TABLE_SPACING_Q15; /* Table spacing */
- int32_t index; /* Index variable */
-
- in = x;
-
- /* Calculate the nearest index */
- index = (int32_t) in / tableSpacing;
-
- /* Calculate the nearest value of input */
- in2 = (q15_t) ((index) * tableSpacing);
-
- /* Calculation of fractional value */
- fract = (in - in2) << 8;
-
- /* fractSquare = fract * fract */
- fractSquare = (q15_t) ((fract * fract) >> 15);
-
- /* fractCube = fract * fract * fract */
- fractCube = (q15_t) ((fractSquare * fract) >> 15);
-
- /* Checking min and max index of table */
- if(index < 0)
- {
- index = 0;
- }
- else if(index > 256)
- {
- index = 256;
- }
-
- /* Initialise table pointer */
- tablePtr = (q15_t *) & sinTableQ15[index];
-
- /* Cubic interpolation process */
- /* Calculation of wa */
- /* wa = -(oneBy6)*fractCube + (fractSquare >> 1u) - (0x2AAA)*fract; */
- wa = (q31_t) oneBy6 *fractCube;
- wa += (q31_t) 0x2AAA *fract;
- wa = -(wa >> 15);
- wa += ((q31_t) fractSquare >> 1u);
-
- /* Read first nearest value of output from the sin table */
- a = *tablePtr++;
-
- /* sinVal = a * wa */
- sinVal = a * wa;
-
- /* Calculation of wb */
- wb = (((q31_t) fractCube >> 1u) - (q31_t) fractSquare) -
- (((q31_t) fract >> 1u) - 0x7FFF);
-
- /* Read second nearest value of output from the sin table */
- b = *tablePtr++;
-
- /* sinVal += b*wb */
- sinVal += b * wb;
-
-
- /* Calculation of wc */
- wc = -(q31_t) fractCube + fractSquare;
- wc = (wc >> 1u) + fract;
-
- /* Read third nearest value of output from the sin table */
- c = *tablePtr++;
-
- /* sinVal += c*wc */
- sinVal += c * wc;
-
- /* Calculation of wd */
- /* wd = (oneBy6)*fractCube - (oneBy6)*fract; */
- fractCube = fractCube - fract;
- wd = ((q15_t) (((q31_t) oneBy6 * fractCube) >> 15));
-
- /* Read fourth nearest value of output from the sin table */
- d = *tablePtr++;
-
- /* sinVal += d*wd; */
- sinVal += d * wd;
-
- /* Convert output value in 1.15(q15) format and saturate */
- sinVal = __SSAT((sinVal >> 15), 16);
-
- /* Return the output value in 1.15(q15) format */
- return ((q15_t) sinVal);
-
-}
-
-/**
- * @} end of sin group
- */
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sin_q31.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sin_q31.c deleted file mode 100644 index 336796b5c..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sin_q31.c +++ /dev/null @@ -1,240 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_sin_q31.c
-*
-* Description: Fast sine calculation for Q31 values.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Big Endian support added and Merged M0 and M3/M4 Source code.
-*
-* Version 1.0.3 2010/11/29
-* Re-organized the CMSIS folders and updated documentation.
-*
-* Version 1.0.2 2010/11/11
-* Documentation updated.
-*
-* Version 1.0.1 2010/10/05
-* Production release and review comments incorporated.
-*
-* Version 1.0.0 2010/09/20
-* Production release and review comments incorporated.
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupFastMath
- */
-
- /**
- * @addtogroup sin
- * @{
- */
-
-/**
- * \par
- * Tables generated are in Q31(1.31 Fixed point format)
- * Generation of sin values in floating point:
- * <pre>tableSize = 256;
- * for(n = -1; n < (tableSize + 1); n++)
- * {
- * sinTable[n+1]= sin(2*pi*n/tableSize);
- * } </pre>
- * where pi value is 3.14159265358979
- * \par
- * Convert Floating point to Q31(Fixed point):
- * (sinTable[i] * pow(2, 31))
- * \par
- * rounding to nearest integer is done
- * sinTable[i] += (sinTable[i] > 0 ? 0.5 :-0.5);
- */
-
-static const q31_t sinTableQ31[259] = {
- 0xfcdbd541, 0x0, 0x3242abf, 0x647d97c, 0x96a9049, 0xc8bd35e, 0xfab272b,
- 0x12c8106f,
- 0x15e21445, 0x18f8b83c, 0x1c0b826a, 0x1f19f97b, 0x2223a4c5, 0x25280c5e,
- 0x2826b928, 0x2b1f34eb,
- 0x2e110a62, 0x30fbc54d, 0x33def287, 0x36ba2014, 0x398cdd32, 0x3c56ba70,
- 0x3f1749b8, 0x41ce1e65,
- 0x447acd50, 0x471cece7, 0x49b41533, 0x4c3fdff4, 0x4ebfe8a5, 0x5133cc94,
- 0x539b2af0, 0x55f5a4d2,
- 0x5842dd54, 0x5a82799a, 0x5cb420e0, 0x5ed77c8a, 0x60ec3830, 0x62f201ac,
- 0x64e88926, 0x66cf8120,
- 0x68a69e81, 0x6a6d98a4, 0x6c242960, 0x6dca0d14, 0x6f5f02b2, 0x70e2cbc6,
- 0x72552c85, 0x73b5ebd1,
- 0x7504d345, 0x7641af3d, 0x776c4edb, 0x78848414, 0x798a23b1, 0x7a7d055b,
- 0x7b5d039e, 0x7c29fbee,
- 0x7ce3ceb2, 0x7d8a5f40, 0x7e1d93ea, 0x7e9d55fc, 0x7f0991c4, 0x7f62368f,
- 0x7fa736b4, 0x7fd8878e,
- 0x7ff62182, 0x7fffffff, 0x7ff62182, 0x7fd8878e, 0x7fa736b4, 0x7f62368f,
- 0x7f0991c4, 0x7e9d55fc,
- 0x7e1d93ea, 0x7d8a5f40, 0x7ce3ceb2, 0x7c29fbee, 0x7b5d039e, 0x7a7d055b,
- 0x798a23b1, 0x78848414,
- 0x776c4edb, 0x7641af3d, 0x7504d345, 0x73b5ebd1, 0x72552c85, 0x70e2cbc6,
- 0x6f5f02b2, 0x6dca0d14,
- 0x6c242960, 0x6a6d98a4, 0x68a69e81, 0x66cf8120, 0x64e88926, 0x62f201ac,
- 0x60ec3830, 0x5ed77c8a,
- 0x5cb420e0, 0x5a82799a, 0x5842dd54, 0x55f5a4d2, 0x539b2af0, 0x5133cc94,
- 0x4ebfe8a5, 0x4c3fdff4,
- 0x49b41533, 0x471cece7, 0x447acd50, 0x41ce1e65, 0x3f1749b8, 0x3c56ba70,
- 0x398cdd32, 0x36ba2014,
- 0x33def287, 0x30fbc54d, 0x2e110a62, 0x2b1f34eb, 0x2826b928, 0x25280c5e,
- 0x2223a4c5, 0x1f19f97b,
- 0x1c0b826a, 0x18f8b83c, 0x15e21445, 0x12c8106f, 0xfab272b, 0xc8bd35e,
- 0x96a9049, 0x647d97c,
- 0x3242abf, 0x0, 0xfcdbd541, 0xf9b82684, 0xf6956fb7, 0xf3742ca2, 0xf054d8d5,
- 0xed37ef91,
- 0xea1debbb, 0xe70747c4, 0xe3f47d96, 0xe0e60685, 0xdddc5b3b, 0xdad7f3a2,
- 0xd7d946d8, 0xd4e0cb15,
- 0xd1eef59e, 0xcf043ab3, 0xcc210d79, 0xc945dfec, 0xc67322ce, 0xc3a94590,
- 0xc0e8b648, 0xbe31e19b,
- 0xbb8532b0, 0xb8e31319, 0xb64beacd, 0xb3c0200c, 0xb140175b, 0xaecc336c,
- 0xac64d510, 0xaa0a5b2e,
- 0xa7bd22ac, 0xa57d8666, 0xa34bdf20, 0xa1288376, 0x9f13c7d0, 0x9d0dfe54,
- 0x9b1776da, 0x99307ee0,
- 0x9759617f, 0x9592675c, 0x93dbd6a0, 0x9235f2ec, 0x90a0fd4e, 0x8f1d343a,
- 0x8daad37b, 0x8c4a142f,
- 0x8afb2cbb, 0x89be50c3, 0x8893b125, 0x877b7bec, 0x8675dc4f, 0x8582faa5,
- 0x84a2fc62, 0x83d60412,
- 0x831c314e, 0x8275a0c0, 0x81e26c16, 0x8162aa04, 0x80f66e3c, 0x809dc971,
- 0x8058c94c, 0x80277872,
- 0x8009de7e, 0x80000000, 0x8009de7e, 0x80277872, 0x8058c94c, 0x809dc971,
- 0x80f66e3c, 0x8162aa04,
- 0x81e26c16, 0x8275a0c0, 0x831c314e, 0x83d60412, 0x84a2fc62, 0x8582faa5,
- 0x8675dc4f, 0x877b7bec,
- 0x8893b125, 0x89be50c3, 0x8afb2cbb, 0x8c4a142f, 0x8daad37b, 0x8f1d343a,
- 0x90a0fd4e, 0x9235f2ec,
- 0x93dbd6a0, 0x9592675c, 0x9759617f, 0x99307ee0, 0x9b1776da, 0x9d0dfe54,
- 0x9f13c7d0, 0xa1288376,
- 0xa34bdf20, 0xa57d8666, 0xa7bd22ac, 0xaa0a5b2e, 0xac64d510, 0xaecc336c,
- 0xb140175b, 0xb3c0200c,
- 0xb64beacd, 0xb8e31319, 0xbb8532b0, 0xbe31e19b, 0xc0e8b648, 0xc3a94590,
- 0xc67322ce, 0xc945dfec,
- 0xcc210d79, 0xcf043ab3, 0xd1eef59e, 0xd4e0cb15, 0xd7d946d8, 0xdad7f3a2,
- 0xdddc5b3b, 0xe0e60685,
- 0xe3f47d96, 0xe70747c4, 0xea1debbb, 0xed37ef91, 0xf054d8d5, 0xf3742ca2,
- 0xf6956fb7, 0xf9b82684,
- 0xfcdbd541, 0x0, 0x3242abf
-};
-
-
-/**
- * @brief Fast approximation to the trigonometric sine function for Q31 data.
- * @param[in] x Scaled input value in radians.
- * @return sin(x).
- *
- * The Q31 input value is in the range [0 +0.9999] and is mapped to a radian value in the range [0 2*pi), Here range excludes 2*pi.
- */
-
-q31_t arm_sin_q31(
- q31_t x)
-{
- q31_t sinVal, in, in2; /* Temporary variables for input, output */
- int32_t index; /* Index variables */
- q31_t wa, wb, wc, wd; /* Cubic interpolation coefficients */
- q31_t a, b, c, d; /* Four nearest output values */
- q31_t *tablePtr; /* Pointer to table */
- q31_t fract, fractCube, fractSquare; /* Temporary values for fractional values */
- q31_t oneBy6 = 0x15555555; /* Fixed point value of 1/6 */
- q31_t tableSpacing = TABLE_SPACING_Q31; /* Table spacing */
- q31_t temp; /* Temporary variable for intermediate process */
-
- in = x;
-
- /* Calculate the nearest index */
- index = (uint32_t) in / (uint32_t) tableSpacing;
-
- /* Calculate the nearest value of input */
- in2 = (q31_t) index *tableSpacing;
-
- /* Calculation of fractional value */
- fract = (in - in2) << 8;
-
- /* fractSquare = fract * fract */
- fractSquare = ((q31_t) (((q63_t) fract * fract) >> 32));
- fractSquare = fractSquare << 1;
-
- /* fractCube = fract * fract * fract */
- fractCube = ((q31_t) (((q63_t) fractSquare * fract) >> 32));
- fractCube = fractCube << 1;
-
- /* Checking min and max index of table */
- if(index < 0)
- {
- index = 0;
- }
- else if(index > 256)
- {
- index = 256;
- }
-
- /* Initialise table pointer */
- tablePtr = (q31_t *) & sinTableQ31[index];
-
- /* Cubic interpolation process */
- /* Calculation of wa */
- /* wa = -(oneBy6)*fractCube + (fractSquare >> 1u) - (0x2AAAAAAA)*fract; */
- wa = ((q31_t) (((q63_t) oneBy6 * fractCube) >> 32));
- temp = 0x2AAAAAAA;
- wa = (q31_t) ((((q63_t) wa << 32) + ((q63_t) temp * fract)) >> 32);
- wa = -(wa << 1u);
- wa += (fractSquare >> 1u);
-
- /* Read first nearest value of output from the sin table */
- a = *tablePtr++;
-
- /* sinVal = a*wa */
- sinVal = ((q31_t) (((q63_t) a * wa) >> 32));
-
- /* q31(1.31) Fixed point value of 1 */
- temp = 0x7FFFFFFF;
-
- /* Calculation of wb */
- wb = ((fractCube >> 1u) - (fractSquare + (fract >> 1u))) + temp;
-
- /* Read second nearest value of output from the sin table */
- b = *tablePtr++;
-
- /* sinVal += b*wb */
- sinVal = (q31_t) ((((q63_t) sinVal << 32) + (q63_t) b * (wb)) >> 32);
-
- /* Calculation of wc */
- wc = -fractCube + fractSquare;
- wc = (wc >> 1u) + fract;
-
- /* Read third nearest value of output from the sin table */
- c = *tablePtr++;
-
- /* sinVal += c*wc */
- sinVal = (q31_t) ((((q63_t) sinVal << 32) + ((q63_t) c * wc)) >> 32);
-
- /* Calculation of wd */
- /* wd = (oneBy6) * fractCube - (oneBy6) * fract; */
- fractCube = fractCube - fract;
- wd = ((q31_t) (((q63_t) oneBy6 * fractCube) >> 32));
- wd = (wd << 1u);
-
- /* Read fourth nearest value of output from the sin table */
- d = *tablePtr++;
-
- /* sinVal += d*wd; */
- sinVal = (q31_t) ((((q63_t) sinVal << 32) + ((q63_t) d * wd)) >> 32);
-
- /* convert sinVal in 2.30 format to 1.31 format */
- return (__QADD(sinVal, sinVal));
-
-}
-
-/**
- * @} end of sin group
- */
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sqrt_q15.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sqrt_q15.c deleted file mode 100644 index 0a6d6a53a..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sqrt_q15.c +++ /dev/null @@ -1,131 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2011 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_sqrt_q15.c
-*
-* Description: Q15 square root function.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.0 2011/03/08
-* Alpha release.
-*
-* Version 1.0.1 2011/09/30
-* Beta release.
-*
-* -------------------------------------------------------------------- */
-#include "arm_math.h"
-#include "arm_common_tables.h"
-
-
-/**
- * @ingroup groupFastMath
- */
-
-/**
- * @addtogroup SQRT
- * @{
- */
-
- /**
- * @brief Q15 square root function.
- * @param[in] in input value. The range of the input value is [0 +1) or 0x0000 to 0x7FFF.
- * @param[out] *pOut square root of input value.
- * @return The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if
- * <code>in</code> is negative value and returns zero output for negative values.
- */
-
-arm_status arm_sqrt_q15(
- q15_t in,
- q15_t * pOut)
-{
- q15_t number, temp1, var1, signBits1, half;
- q31_t bits_val1;
- float32_t temp_float1;
-
- number = in;
-
- /* If the input is a positive number then compute the signBits. */
- if(number > 0)
- {
- signBits1 = __CLZ(number) - 17;
-
- /* Shift by the number of signBits1 */
- if((signBits1 % 2) == 0)
- {
- number = number << signBits1;
- }
- else
- {
- number = number << (signBits1 - 1);
- }
-
- /* Calculate half value of the number */
- half = number >> 1;
- /* Store the number for later use */
- temp1 = number;
-
- /*Convert to float */
- temp_float1 = number * 3.051757812500000e-005f;
- /*Store as integer */
- bits_val1 = *(int *) &temp_float1;
- /* Subtract the shifted value from the magic number to give intial guess */
- bits_val1 = 0x5f3759df - (bits_val1 >> 1); // gives initial guess
- /* Store as float */
- temp_float1 = *(float *) &bits_val1;
- /* Convert to integer format */
- var1 = (q31_t) (temp_float1 * 16384);
-
- /* 1st iteration */
- var1 = ((q15_t) ((q31_t) var1 * (0x3000 -
- ((q15_t)
- ((((q15_t)
- (((q31_t) var1 * var1) >> 15)) *
- (q31_t) half) >> 15))) >> 15)) << 2;
- /* 2nd iteration */
- var1 = ((q15_t) ((q31_t) var1 * (0x3000 -
- ((q15_t)
- ((((q15_t)
- (((q31_t) var1 * var1) >> 15)) *
- (q31_t) half) >> 15))) >> 15)) << 2;
- /* 3rd iteration */
- var1 = ((q15_t) ((q31_t) var1 * (0x3000 -
- ((q15_t)
- ((((q15_t)
- (((q31_t) var1 * var1) >> 15)) *
- (q31_t) half) >> 15))) >> 15)) << 2;
-
- /* Multiply the inverse square root with the original value */
- var1 = ((q15_t) (((q31_t) temp1 * var1) >> 15)) << 1;
-
- /* Shift the output down accordingly */
- if((signBits1 % 2) == 0)
- {
- var1 = var1 >> (signBits1 / 2);
- }
- else
- {
- var1 = var1 >> ((signBits1 - 1) / 2);
- }
- *pOut = var1;
-
- return (ARM_MATH_SUCCESS);
- }
- /* If the number is a negative number then store zero as its square root value */
- else
- {
- *pOut = 0;
- return (ARM_MATH_ARGUMENT_ERROR);
- }
-}
-
-/**
- * @} end of SQRT group
- */
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sqrt_q31.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sqrt_q31.c deleted file mode 100644 index 2a3b7ac18..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FastMathFunctions/arm_sqrt_q31.c +++ /dev/null @@ -1,129 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2011 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_sqrt_q31.c
-*
-* Description: Q31 square root function.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.0 2011/03/08
-* Alpha release.
-*
-* Version 1.0.1 2011/09/30
-* Beta release.
-*
-* -------------------------------------------------------------------- */
-#include "arm_math.h"
-#include "arm_common_tables.h"
-
-/**
- * @ingroup groupFastMath
- */
-
-/**
- * @addtogroup SQRT
- * @{
- */
-
-/**
- * @brief Q31 square root function.
- * @param[in] in input value. The range of the input value is [0 +1) or 0x00000000 to 0x7FFFFFFF.
- * @param[out] *pOut square root of input value.
- * @return The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if
- * <code>in</code> is negative value and returns zero output for negative values.
- */
-
-arm_status arm_sqrt_q31(
- q31_t in,
- q31_t * pOut)
-{
- q31_t number, temp1, bits_val1, var1, signBits1, half;
- float32_t temp_float1;
-
- number = in;
-
- /* If the input is a positive number then compute the signBits. */
- if(number > 0)
- {
- signBits1 = __CLZ(number) - 1;
-
- /* Shift by the number of signBits1 */
- if((signBits1 % 2) == 0)
- {
- number = number << signBits1;
- }
- else
- {
- number = number << (signBits1 - 1);
- }
-
- /* Calculate half value of the number */
- half = number >> 1;
- /* Store the number for later use */
- temp1 = number;
-
- /*Convert to float */
- temp_float1 = number * 4.6566128731e-010f;
- /*Store as integer */
- bits_val1 = *(int *) &temp_float1;
- /* Subtract the shifted value from the magic number to give intial guess */
- bits_val1 = 0x5f3759df - (bits_val1 >> 1); // gives initial guess
- /* Store as float */
- temp_float1 = *(float *) &bits_val1;
- /* Convert to integer format */
- var1 = (q31_t) (temp_float1 * 1073741824);
-
- /* 1st iteration */
- var1 = ((q31_t) ((q63_t) var1 * (0x30000000 -
- ((q31_t)
- ((((q31_t)
- (((q63_t) var1 * var1) >> 31)) *
- (q63_t) half) >> 31))) >> 31)) << 2;
- /* 2nd iteration */
- var1 = ((q31_t) ((q63_t) var1 * (0x30000000 -
- ((q31_t)
- ((((q31_t)
- (((q63_t) var1 * var1) >> 31)) *
- (q63_t) half) >> 31))) >> 31)) << 2;
- /* 3rd iteration */
- var1 = ((q31_t) ((q63_t) var1 * (0x30000000 -
- ((q31_t)
- ((((q31_t)
- (((q63_t) var1 * var1) >> 31)) *
- (q63_t) half) >> 31))) >> 31)) << 2;
-
- /* Multiply the inverse square root with the original value */
- var1 = ((q31_t) (((q63_t) temp1 * var1) >> 31)) << 1;
-
- /* Shift the output down accordingly */
- if((signBits1 % 2) == 0)
- {
- var1 = var1 >> (signBits1 / 2);
- }
- else
- {
- var1 = var1 >> ((signBits1 - 1) / 2);
- }
- *pOut = var1;
-
- return (ARM_MATH_SUCCESS);
- }
- /* If the number is a negative number then store zero as its square root value */
- else
- {
- *pOut = 0;
- return (ARM_MATH_ARGUMENT_ERROR);
- }
-}
-
-/**
- * @} end of SQRT group
- */
|