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Diffstat (limited to 'newlib/libm/machine/spu/headers/floorf4.h')
| -rw-r--r-- | newlib/libm/machine/spu/headers/floorf4.h | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/newlib/libm/machine/spu/headers/floorf4.h b/newlib/libm/machine/spu/headers/floorf4.h deleted file mode 100644 index e816f0359..000000000 --- a/newlib/libm/machine/spu/headers/floorf4.h +++ /dev/null @@ -1,105 +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 _FLOORF4_H_ -#define _FLOORF4_H_ 1 - -#include <spu_intrinsics.h> - - -/* - * FUNCTION - * vector float _floorf4(vector float value) - * - * DESCRIPTION - * The _floorf4 routine rounds a vector of input values "value" downwards - * to their nearest integer returning the result as a vector of floats. - * - * The full range form (default) provides floor computation on - * all IEEE floating point values. The floor of NANs remain NANs. - * The floor of denorms results in zero. - * - */ -static __inline vector float _floorf4(vector float value) -{ - - /* FULL FLOATING-POINT RANGE - */ - vec_int4 exp, shift; - vec_uint4 mask, frac_mask, addend, insert, pos; - vec_float4 out; - - /* This function generates the following component - * based upon the inputs. - * - * mask = bits of the input that need to be replaced. - * insert = value of the bits that need to be replaced - * addend = value to be added to perform function. - * - * These are applied as follows:. - * - * out = ((in & mask) | insert) + addend - */ - pos = spu_cmpgt((vec_int4)value, -1); - exp = spu_and(spu_rlmask((vec_int4)value, -23), 0xFF); - - shift = spu_sub(127, exp); - - frac_mask = spu_and(spu_rlmask(spu_splats((unsigned int)0x7FFFFF), shift), - spu_cmpgt((vec_int4)shift, -31)); - - mask = spu_orc(frac_mask, spu_cmpgt(exp, 126)); - - addend = spu_andc(spu_andc(spu_add(mask, 1), pos), spu_cmpeq(spu_and((vec_uint4)value, mask), 0)); - - insert = spu_andc(spu_andc(spu_splats((unsigned int)0xBF800000), pos), - spu_cmpgt((vec_uint4)spu_add(exp, -1), 126)); - - out = (vec_float4)spu_add(spu_sel((vec_uint4)value, insert, mask), addend); - - /* Preserve orignal sign bit (for -0 case) - */ - out = spu_sel(out, value, spu_splats((unsigned int)0x80000000)); - - return (out); -} -#endif /* _FLOORF4_H_ */ -#endif /* __SPU__ */ |