#include "ref.h"
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float32_t scratchArray[8192*2];
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arm_cfft_instance_f32 ref_cfft_sR_f32_len8192 = { 8192, 0, 0, 0 };
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q31_t ref_sat_n(q31_t num, uint32_t bits)
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{
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int32_t posMax, negMin;
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uint32_t i;
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posMax = 1;
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for (i = 0; i < (bits - 1); i++)
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{
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posMax = posMax * 2;
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}
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if (num > 0)
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{
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posMax = (posMax - 1);
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if (num > posMax)
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{
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num = posMax;
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}
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}
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else
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{
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negMin = -posMax;
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if (num < negMin)
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{
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num = negMin;
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}
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}
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return (num);
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}
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q31_t ref_sat_q31(q63_t num)
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{
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if (num > (q63_t)INT_MAX)
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{
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return INT_MAX;
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}
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else if (num < (q63_t)0xffffffff80000000ll)
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{
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return INT_MIN;
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}
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else
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{
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return (q31_t)num;
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}
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}
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q15_t ref_sat_q15(q31_t num)
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{
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if (num > (q31_t)SHRT_MAX)
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{
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return SHRT_MAX;
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}
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else if (num < (q31_t)0xffff8000)
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{
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return SHRT_MIN;
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}
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else
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{
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return (q15_t)num;
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}
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}
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q7_t ref_sat_q7(q15_t num)
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{
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if (num > (q15_t)SCHAR_MAX)
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{
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return SCHAR_MAX;
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}
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else if (num < (q15_t)0xff80)
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{
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return SCHAR_MIN;
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}
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else
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{
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return (q7_t)num;
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}
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}
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float32_t ref_pow(float32_t a, uint32_t b)
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{
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uint32_t i;
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float32_t r = a;
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for(i=1;i<b;i++)
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{
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r *= a;
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}
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if ( b == 0)
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{
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return 1;
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}
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return r;
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}
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