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Diffstat (limited to 'newlib/libm/machine/spu/headers/frexpf.h')
-rw-r--r-- | newlib/libm/machine/spu/headers/frexpf.h | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/newlib/libm/machine/spu/headers/frexpf.h b/newlib/libm/machine/spu/headers/frexpf.h deleted file mode 100644 index 5de31da98..000000000 --- a/newlib/libm/machine/spu/headers/frexpf.h +++ /dev/null @@ -1,69 +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 _FREXPF_H_ -#define _FREXPF_H_ 1 - -#include <spu_intrinsics.h> -#include "headers/vec_literal.h" - -/* Return the normalized fraction and exponent to the number x. - */ -static __inline float _frexpf(float x, int *pexp) -{ - vec_int4 exp; - vec_uint4 mask; - vec_uint4 exp_mask = VEC_SPLAT_U32(0x7F800000); - vec_float4 half = VEC_SPLAT_F32(0.5f); - vec_float4 in, mant; - - 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, -23), 0xFF); - mask = spu_cmpeq(exp, 0); - mant = spu_andc(mant, (vec_float4)mask); - - /* Zero exponent if zero or denorm input. Otherwise, compute - * exponent by removing the bias. - */ - exp = spu_andc(spu_add(exp, -126), (vec_int4)mask); - *pexp = spu_extract(exp, 0); - - return (spu_extract(mant, 0)); -} -#endif /* _FREXPF_H_ */ |