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Diffstat (limited to 'newlib/libm/machine/spu/headers/frexp.h')
-rw-r--r-- | newlib/libm/machine/spu/headers/frexp.h | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/newlib/libm/machine/spu/headers/frexp.h b/newlib/libm/machine/spu/headers/frexp.h deleted file mode 100644 index 8b525c76e..000000000 --- a/newlib/libm/machine/spu/headers/frexp.h +++ /dev/null @@ -1,74 +0,0 @@ -/* - (C) Copyright 2001,2006, - International Business Machines Corporation, - Sony Computer Entertainment, Incorporated, - Toshiba Corporation, - - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the names of the copyright holders nor the names of their - contributors may be used to endorse or promote products derived from this - software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER - OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ -#ifndef _FREXP_H_ -#define _FREXP_H_ 1 - -#include <spu_intrinsics.h> -#include "headers/vec_literal.h" - -/* Return the normalized fraction and exponent to the number x. - * Double precision denorms treated as zero and return a 0 - * fraction and 0 exponent. The results are undefined for infinities - * and NaNs (double precision only). - */ -static __inline double _frexp(double x, int *pexp) -{ - vec_int4 exp; - vec_uint4 denorm, mask; - vec_double2 in, mant; - vec_double2 half = VEC_SPLAT_F64(0.5); - vec_ullong2 exp_mask = VEC_SPLAT_U64(0x7FF0000000000000ULL); - - in = spu_promote(x, 0); - - /* Normalize the mantissa (fraction part). - */ - mant = spu_sel(in, half, exp_mask); - - /* Zero the mantissa if the input is a denorm or zero - */ - exp = spu_and(spu_rlmask((vec_int4)in, -20), 0x7FF); - denorm = spu_cmpeq(exp, 0); - mask = spu_shuffle(denorm, denorm, VEC_SPLAT_U8(0)); - mant = spu_andc(mant, (vec_double2)mask); - - /* Zero exponent if zero or denorm input. Otherwise, compute - * exponent by removing the bias. - */ - exp = spu_andc(spu_add(exp, -1022), (vec_int4)mask); - - *pexp = spu_extract(exp, 0); - - return (spu_extract(mant, 0)); -} -#endif /* _FREXPF_H_ */ |