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Math: Library: Add the hifi4 exponential function 

This patch adds a single h-file include and other cosmetic
blanks/tabs changes.

Signed-off-by: ShriramShastry <malladi.sastry@intel.com>
This commit is contained in:
ShriramShastry 2023-05-17 19:15:10 +05:30 committed by Liam Girdwood
parent 107043f978
commit 7a7198dfd3
2 changed files with 8 additions and 5 deletions
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9
src/math/exp_fcn_hifi4.c
View File

@ -6,6 +6,7 @@
*
*/
#include <sof/math/exp_fcn.h>
#include <sof/common.h>
#include <stdbool.h>
#include <stdint.h>
@ -161,13 +162,13 @@ static ae_int64 onebyfact_Q63[19] = {
/* f(x) = a^x, x is variable and a is base
*
* Arguments : int32_t x(Q4.28)
* input range : -5 to 5
* Arguments : int32_t x(Q4.28)
* input range -5 to 5
*
* Return Type : int32_t ts(Q9.23)
* Return Type : int32_t ts(Q9.23)
* output range 0.0067465305 to 148.4131488800
*+------------------+-----------------+--------+--------+
*| x | ts (returntype) | x | ts |
*| x | ts (returntype) | x | ts |
*+----+-----+-------+----+----+-------+--------+--------+
*|WLen| FLen|Signbit|WLen|FLen|Signbit| Qformat| Qformat|
*+----+-----+-------+----+----+-------+--------+--------+

4
test/cmocka/src/math/arithmetic/exponential.c
View File

@ -23,6 +23,7 @@
#define ULP_TOLERANCE 5.60032793
#define ULP_SCALE 0.0000999999999749
#define NUMTESTSAMPLES 256
static void gen_exp_testvector(double a, double b, double *r, int32_t *b_i);
@ -65,9 +66,10 @@ static void test_math_arithmetic_exponential_fixed(void **state)
int32_t b_i;
srand((unsigned int)time(NULL));
for (i = 0; i < 256; i++) {
for (i = 0; i < NUMTESTSAMPLES; i++) {
gen_exp_testvector(a_tmp, b_tmp, &r, &b_i);
a_i = (double)b_i / (1 << 28);
accum = sofm_exp_int32(b_i);
max_ulp = fabs(exp(a_i) - (double)accum / (1 << 23)) / ULP_SCALE;