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Diffstat (limited to 'newlib/libm/machine/spu/headers/ldexpd2.h')
| -rw-r--r-- | newlib/libm/machine/spu/headers/ldexpd2.h | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/newlib/libm/machine/spu/headers/ldexpd2.h b/newlib/libm/machine/spu/headers/ldexpd2.h deleted file mode 100644 index 145e4371e..000000000 --- a/newlib/libm/machine/spu/headers/ldexpd2.h +++ /dev/null @@ -1,97 +0,0 @@ -/* -------------------------------------------------------------- */ -/* (C)Copyright 2001,2008, */ -/* 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 name of IBM Corporation nor the names of its */ -/* 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. */ -/* -------------------------------------------------------------- */ -/* PROLOG END TAG zYx */ -#ifdef __SPU__ - -#ifndef _LDEXPD2_H_ -#define _LDEXPD2_H_ 1 - -#include <spu_intrinsics.h> - -/* - * FUNCTION - * vector double _ldexpd2(vector double x, vector signed long long exp) - * - * DESCRIPTION - * The _ldexpd2 function Computes x * 2^exp for each of the two elements - * of x using the corresponding elements of exp. - * - */ -static __inline vector double _ldexpd2(vector double x, vector signed long long llexp) -{ - vec_uchar16 odd_to_even = ((vec_uchar16) { 4,5,6,7, 0x80,0x80,0x80,0x80, - 12,13,14,15, 0x80,0x80,0x80,0x80 }); - vec_int4 exp; - vec_int4 e1, e2; - vec_int4 min = spu_splats(-2044); - vec_int4 max = spu_splats(2046); - vec_uint4 cmp_min, cmp_max; - vec_uint4 shift = (vec_uint4) { 20, 32, 20, 32 }; - vec_double2 f1, f2; - vec_double2 out; - - exp = (vec_int4)spu_shuffle(llexp, llexp, odd_to_even); - - /* Clamp the specified exponent to the range -2044 to 2046. - */ - - cmp_min = spu_cmpgt(exp, min); - cmp_max = spu_cmpgt(exp, max); - exp = spu_sel(min, exp, cmp_min); - exp = spu_sel(exp, max, cmp_max); - - /* Generate the factors f1 = 2^e1 and f2 = 2^e2 - */ - e1 = spu_rlmaska(exp, -1); - e2 = spu_sub(exp, e1); - - f1 = (vec_double2)spu_sl(spu_add(e1, 1023), shift); - f2 = (vec_double2)spu_sl(spu_add(e2, 1023), shift); - - /* Compute the product x * 2^e1 * 2^e2 - */ - out = spu_mul(spu_mul(x, f1), f2); - - return (out); -} - -#endif /* _LDEXPD2_H_ */ -#endif /* __SPU__ */ - |