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Diffstat (limited to 'newlib/libm/machine/spu/headers/lround.h')
-rw-r--r-- | newlib/libm/machine/spu/headers/lround.h | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/newlib/libm/machine/spu/headers/lround.h b/newlib/libm/machine/spu/headers/lround.h deleted file mode 100644 index 2a1e3269a..000000000 --- a/newlib/libm/machine/spu/headers/lround.h +++ /dev/null @@ -1,84 +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 _LROUND_H_ -#define _LROUND_H_ 1 - -#include <spu_intrinsics.h> -#include "headers/vec_literal.h" - -/* Round the input to the nearest integer value, rounding halfway cases - * away from zero. No special handling is performed when values are - * outside the 32-bit range. - */ - -static __inline long int _lround(double x) -{ - int shift; - vec_int4 exp; - vec_uint4 mant, sign, mask, addend; - vec_double2 in; - - in = spu_promote(x, 0); - - /* Determine how many bits to shift the mantissa to correctly - * align it into long long element 0. - */ - exp = spu_and(spu_rlmask((vec_int4)in, -20), 0x7FF); - exp = spu_add(exp, -979); - shift = spu_extract(exp, 0); - - mask = spu_cmpgt(exp, 0); - - /* Algn mantissa bits - */ - mant = spu_sel(spu_rlmaskqwbyte((vec_uint4)in, -8), VEC_SPLAT_U32(0x00100000), - VEC_LITERAL(vec_uint4, 0,0,0xFFF00000,0)); - - mant = spu_slqwbytebc(spu_slqw(mant, shift), shift); - - /* Perform round by adding 1 if the fraction bits are - * greater than or equal to .5 - */ - addend = spu_and(spu_rlqw(mant, 1), 1); - mant = spu_and(spu_add(mant, addend), mask); - - /* Compute the two's complement of the mantissa if the - * input is negative. - */ - sign = (vec_uint4)spu_rlmaska((vec_int4)in, -31); - - mant = spu_sub(spu_xor(mant, sign), sign); - - return ((long int)spu_extract(mant, 0)); -} -#endif /* _LROUND_H_ */ |