Retro68/gcc/newlib/libm/machine/spu/headers/isnanf4.h
2012-03-27 01:51:53 +02:00

67 lines
3.2 KiB
C

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/* PROLOG END TAG zYx */
#ifdef __SPU__
#ifndef _ISNANF4_H_
#define _ISNANF4_H_ 1
#include <spu_intrinsics.h>
/*
* FUNCTION
* vector unsigned int _isnanf4(vector float x)
*
* DESCRIPTION
* The _isnanf4 function returns a vector in which each element indicates
* if the corresponding element of x is NaN.
*
* On the SPU, this function always returns 0, since NaNs are not
* supported.
*
* RETURNS
* UINT_MAX (0xFFFFFFFF) if the element of x is a NaN
* 0 (0x00000000) otherwise (always on the SPU)
*
*/
static __inline vector unsigned int _isnanf4(vector float __attribute__((__unused__))x)
{
return spu_splats((unsigned int)0);
}
#endif // _ISNANF4_H_
#endif /* __SPU__ */