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Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
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libc/intrin/paddsw.h Normal file
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#ifndef COSMOPOLITAN_LIBC_INTRIN_PADDSW_H_
#define COSMOPOLITAN_LIBC_INTRIN_PADDSW_H_
#include "libc/intrin/macros.h"
#include "libc/limits.h"
#include "libc/macros.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
/**
* Adds signed 16-bit integers w/ saturation.
*
* @param 𝑎 [w/o] receives result
* @param 𝑏 [r/o] supplies first input vector
* @param 𝑐 [r/o] supplies second input vector
* @see paddw()
* @mayalias
*/
static void paddsw(short a[8], const short b[8], const short c[8]) {
int i;
for (i = 0; i < 8; ++i) {
a[i] = MIN(SHRT_MAX, MAX(SHRT_MIN, b[i] + c[i]));
}
}
#define paddsw(A, B, C) \
INTRIN_SSEVEX_X_X_X_(paddsw, SSE2, "paddsw", INTRIN_COMMUTATIVE, A, B, C)
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_INTRIN_PADDSW_H_ */