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Diffstat (limited to 'newlib/libm/machine/spu/headers/sinhd2.h')
| -rw-r--r-- | newlib/libm/machine/spu/headers/sinhd2.h | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/newlib/libm/machine/spu/headers/sinhd2.h b/newlib/libm/machine/spu/headers/sinhd2.h deleted file mode 100644 index d87ec07a3..000000000 --- a/newlib/libm/machine/spu/headers/sinhd2.h +++ /dev/null @@ -1,121 +0,0 @@ -/* -------------------------------------------------------------- */ -/* (C)Copyright 2006,2008, */ -/* International Business Machines 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 _SINHD2_H_ -#define _SINHD2_H_ 1 - -#include <spu_intrinsics.h> - -#include "expd2.h" -#include "recipd2.h" - -/* - * FUNCTION - * vector double _sinhd2(vector double angle) - * - * DESCRIPTION - * The _sinhd2 function computes the hyperbolic sine of a vector of - * angles (expressed in radians) to an accuracy of a double precision - * floating point. - */ -static __inline vector double _sinhd2(vector double x) -{ - // Coefficents for the power series - vec_double2 f03 = spu_splats(1.66666666666666666667E-01); // 1/(3!) - vec_double2 f05 = spu_splats(8.33333333333333333333E-03); // 1/(5!) - vec_double2 f07 = spu_splats(1.98412698412698412698E-04); // 1/(7!) - vec_double2 f09 = spu_splats(2.75573192239858906526E-06); // 1/(9!) - vec_double2 f11 = spu_splats(2.50521083854417187751E-08); // 1/(11!) - vec_double2 f13 = spu_splats(1.60590438368216145994E-10); // 1/(13!) - vec_double2 f15 = spu_splats(7.64716373181981647590E-13); // 1/(15!) - vec_double2 f17 = spu_splats(2.81145725434552076320E-15); // 1/(17!) - vec_double2 f19 = spu_splats(8.22063524662432971696E-18); // 1/(19!) - vec_double2 f21 = spu_splats(1.95729410633912612308E-20); // 1/(21!) - vec_double2 f23 = spu_splats(3.86817017063068403772E-23); // 1/(23!) - - - - // Check if the input is within the range [ -1.0 ... 1.0 ] - // If it is, we want to use the power series, otherwise - // we want to use the 0.5 * (e^x - e^-x) - - // round to float, check if within range. Results will be in - // slots 0 and 2, so we rotate right 4 bytes, and "or" with ourself - // to produce 64 bits of all 1's or 0's. - vec_uint4 use_exp = spu_cmpabsgt(spu_roundtf(x),spu_splats(1.0f)); - use_exp = spu_or(use_exp,spu_rlmaskqwbyte(use_exp,-4)); - - - - - // Perform the calculation of the power series using Horner's method - vec_double2 result; - vec_double2 x2 = spu_mul(x,x); - result = spu_madd(x2,f23,f21); - result = spu_madd(x2,result,f19); - result = spu_madd(x2,result,f17); - result = spu_madd(x2,result,f15); - result = spu_madd(x2,result,f13); - result = spu_madd(x2,result,f11); - result = spu_madd(x2,result,f09); - result = spu_madd(x2,result,f07); - result = spu_madd(x2,result,f05); - result = spu_madd(x2,result,f03); - result = spu_madd(x2,result,spu_splats(1.0)); - result = spu_mul(x,result); - - - // Perform calculation as a function of 0.5 * (e^x - e^-x) - vec_double2 ex = _expd2(x); - vec_double2 ex_inv = _recipd2(ex); - - vec_double2 r2= spu_sub(ex,ex_inv); - r2 = spu_mul(r2,spu_splats(0.5)); - - - // Select either the power series or exp version - result = spu_sel(result,r2,(vec_ullong2)use_exp); - - - - return result; - -} - -#endif /* _SINHD2_H_ */ -#endif /* __SPU__ */ |