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https://github.com/gnss-sdr/gnss-sdr
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5ba12c6fdb
carrier wipe-off and correlator kernels (250% faster than gr_complex) enabled in tracking GPS_L1_CA_DLL_PLL_C_Aid_Tracking_16sc tracking
32 lines
648 B
C
32 lines
648 B
C
#ifndef SATURATED_ARITHMETIC_H_
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#define SATURATED_ARITHMETIC_H_
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#include <limits.h>
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//#include <types.h>
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static inline int16_t sat_adds16b(int16_t x, int16_t y)
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{
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// int16_t ux = x;
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// int16_t uy = y;
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// int16_t res = ux + uy;
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//
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// /* Calculate overflowed result. (Don't change the sign bit of ux) */
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// ux = (ux >> 15) + SHRT_MAX;
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//
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// /* Force compiler to use cmovns instruction */
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// if ((int16_t) ((ux ^ uy) | ~(uy ^ res)) >= 0)
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// {
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// res = ux;
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// }
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//
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// return res;
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int32_t res = (int32_t) x + (int32_t) y;
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if (res < SHRT_MIN) res = SHRT_MIN;
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if (res > SHRT_MAX) res = SHRT_MAX;
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return res;
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}
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#endif /*SATURATED_ARITHMETIC_H_*/
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