diff options
author | Jeff Johnston <jjohnstn@redhat.com> | 2007-09-28 22:32:57 +0400 |
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committer | Jeff Johnston <jjohnstn@redhat.com> | 2007-09-28 22:32:57 +0400 |
commit | 505ea71432880e9464e407dc08b4648ae3566c9d (patch) | |
tree | 044d5ba35640cd33c718b47821791f2d316739de /newlib/libm/machine/spu/headers/llroundf.h | |
parent | b75971ef8a9ea404cd31d553634d6d1d46159b59 (diff) |
2007-09-28 Patrick Mansfield <patmans@us.ibm.com>
* configure.host: Define _POSIX_MODE to match the existing vector
math code, as we don't support the matherr callout.
* libm/machine/spu/Makefile.am: New file.
* libm/machine/spu/Makefile.in: Auto-generated.
* libm/machine/spu/headers/atanf.h: New file.
* libm/machine/spu/headers/cbrt.h: Ditto.
* libm/machine/spu/headers/cbrtf.h: Ditto.
* libm/machine/spu/headers/ceil.h: Ditto.
* libm/machine/spu/headers/ceilf.h: Ditto.
* libm/machine/spu/headers/copysign.h: Ditto.
* libm/machine/spu/headers/copysignf.h: Ditto.
* libm/machine/spu/headers/exp2f.h: Ditto.
* libm/machine/spu/headers/expf.h: Ditto.
* libm/machine/spu/headers/fabs.h: Ditto.
* libm/machine/spu/headers/fabsf.h: Ditto.
* libm/machine/spu/headers/fdim.h: Ditto.
* libm/machine/spu/headers/fdimf.h: Ditto.
* libm/machine/spu/headers/floor.h: Ditto.
* libm/machine/spu/headers/floorf.h: Ditto.
* libm/machine/spu/headers/fma.h: Ditto.
* libm/machine/spu/headers/fmaf.h: Ditto.
* libm/machine/spu/headers/fmax.h: Ditto.
* libm/machine/spu/headers/fmaxf.h: Ditto.
* libm/machine/spu/headers/fmin.h: Ditto.
* libm/machine/spu/headers/fminf.h: Ditto.
* libm/machine/spu/headers/fmod.h: Ditto.
* libm/machine/spu/headers/fmodf.h: Ditto.
* libm/machine/spu/headers/frexp.h: Ditto.
* libm/machine/spu/headers/frexpf.h: Ditto.
* libm/machine/spu/headers/ilogb.h: Ditto.
* libm/machine/spu/headers/ilogbf.h: Ditto.
* libm/machine/spu/headers/ldexp.h: Ditto.
* libm/machine/spu/headers/ldexpf.h: Ditto.
* libm/machine/spu/headers/llrint.h: Ditto.
* libm/machine/spu/headers/llrintf.h: Ditto.
* libm/machine/spu/headers/llround.h: Ditto.
* libm/machine/spu/headers/llroundf.h: Ditto.
* libm/machine/spu/headers/log10f.h: Ditto.
* libm/machine/spu/headers/log2f.h: Ditto.
* libm/machine/spu/headers/logf.h: Ditto.
* libm/machine/spu/headers/lrint.h: Ditto.
* libm/machine/spu/headers/lrintf.h: Ditto.
* libm/machine/spu/headers/lround.h: Ditto.
* libm/machine/spu/headers/lroundf.h: Ditto.
* libm/machine/spu/headers/nearbyint.h: Ditto.
* libm/machine/spu/headers/remainder.h: Ditto.
* libm/machine/spu/headers/remainderf.h: Ditto.
* libm/machine/spu/headers/remquo.h: Ditto.
* libm/machine/spu/headers/remquof.h: Ditto.
* libm/machine/spu/headers/rint.h: Ditto.
* libm/machine/spu/headers/round.h: Ditto.
* libm/machine/spu/headers/roundf.h: Ditto.
* libm/machine/spu/headers/scalbn.h: Ditto.
* libm/machine/spu/headers/scalbnf.h: Ditto.
* libm/machine/spu/headers/sqrt.h: Ditto.
* libm/machine/spu/headers/trunc.h: Ditto.
* libm/machine/spu/headers/truncf.h: Ditto.
* libm/machine/spu/headers/vec_literal.h: Ditto.
* libm/machine/spu/llrint.c: Ditto.
* libm/machine/spu/llrintf.c: Ditto.
* libm/machine/spu/llround.c: Ditto.
* libm/machine/spu/llroundf.c: Ditto.
* libm/machine/spu/log2f.c: Ditto.
* libm/machine/spu/s_cbrt.c: Ditto.
* libm/machine/spu/s_ceil.c: Ditto.
* libm/machine/spu/s_copysign.c: Ditto.
* libm/machine/spu/s_fabs.c: Ditto.
* libm/machine/spu/s_fdim.c: Ditto.
* libm/machine/spu/s_floor.c: Ditto.
* libm/machine/spu/s_fma.c: Ditto.
* libm/machine/spu/s_fmax.c: Ditto.
* libm/machine/spu/s_fmin.c: Ditto.
* libm/machine/spu/s_frexp.c: Ditto.
* libm/machine/spu/s_ilogb.c: Ditto.
* libm/machine/spu/s_ldexp.c: Ditto.
* libm/machine/spu/s_lrint.c: Ditto.
* libm/machine/spu/s_lround.c: Ditto.
* libm/machine/spu/s_nearbyint.c: Ditto.
* libm/machine/spu/s_remquo.c: Ditto.
* libm/machine/spu/s_rint.c: Ditto.
* libm/machine/spu/s_round.c: Ditto.
* libm/machine/spu/s_scalbn.c: Ditto.
* libm/machine/spu/s_trunc.c: Ditto.
* libm/machine/spu/sf_atan.c: Ditto.
* libm/machine/spu/sf_cbrt.c: Ditto.
* libm/machine/spu/sf_ceil.c: Ditto.
* libm/machine/spu/sf_copysign.c: Ditto.
* libm/machine/spu/sf_fabs.c: Ditto.
* libm/machine/spu/sf_fdim.c: Ditto.
* libm/machine/spu/sf_floor.c: Ditto.
* libm/machine/spu/sf_fma.c: Ditto.
* libm/machine/spu/sf_fmax.c: Ditto.
* libm/machine/spu/sf_fmin.c: Ditto.
* libm/machine/spu/sf_frexp.c: Ditto.
* libm/machine/spu/sf_ilogb.c: Ditto.
* libm/machine/spu/sf_ldexp.c: Ditto.
* libm/machine/spu/sf_lrint.c: Ditto.
* libm/machine/spu/sf_lround.c: Ditto.
* libm/machine/spu/sf_remquo.c: Ditto.
* libm/machine/spu/sf_round.c: Ditto.
* libm/machine/spu/sf_scalbn.c: Ditto.
* libm/machine/spu/sf_trunc.c: Ditto.
* libm/machine/spu/w_fmod.c: Ditto.
* libm/machine/spu/w_remainder.c: Ditto.
* libm/machine/spu/w_sqrt.c: Ditto.
* libm/machine/spu/wf_exp.c: Ditto.
* libm/machine/spu/wf_exp2.c: Ditto.
* libm/machine/spu/wf_fmod.c: Ditto.
* libm/machine/spu/wf_log.c: Ditto.
* libm/machine/spu/wf_log10.c: Ditto.
* libm/machine/spu/wf_remainder.c: Ditto.
Diffstat (limited to 'newlib/libm/machine/spu/headers/llroundf.h')
-rw-r--r-- | newlib/libm/machine/spu/headers/llroundf.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/newlib/libm/machine/spu/headers/llroundf.h b/newlib/libm/machine/spu/headers/llroundf.h new file mode 100644 index 000000000..cfdebba2a --- /dev/null +++ b/newlib/libm/machine/spu/headers/llroundf.h @@ -0,0 +1,87 @@ +/* + (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 _LLROUNDF_H_ +#define _LLROUNDF_H_ 1 + +#include <spu_intrinsics.h> +#include "headers/vec_literal.h" + +static __inline long long int _llroundf(float x) +{ + int shift; + vec_int4 exp; + vec_uint4 mant, sign, borrow; + vec_float4 in; + + in = spu_promote(x, 0); + + /* Place mantissa bits (including implied most signficant + * bit) into the most significant bits of element 3. Elements + * 0, 1, and 2 are zeroed. + */ + mant = spu_sel(spu_rlmaskqwbyte((vec_uint4)in, -11), + VEC_SPLAT_U32(0x80000000), + VEC_LITERAL(vec_uint4, 0,0,0xFF,0x800000FF)); + + /* 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, -23), 0xFF); + shift = spu_extract(spu_add(exp, -94), 0); + + /* Algn mantissa bits + */ + mant = spu_slqwbytebc(spu_slqw(mant, shift), shift); + + /* Perform round by adding 1 if the fraction bits are + * greater than or equal to .5 + */ + mant = spu_add(mant, spu_and(spu_rlqw(mant, 1), VEC_LITERAL(vec_uint4, 0,1,0,0))); + + /* Compute the two's complement of the mantissa if the + * input is negative. + */ + sign = spu_maskw(spu_extract(spu_rlmaska((vec_int4)in, -31), 0)); + + mant = spu_xor(mant, sign); + borrow = spu_genb(mant, sign); + + borrow = spu_shuffle(borrow, borrow, + VEC_LITERAL(vec_uchar16, 4,5,6,7, 192,192,192,192, + 4,5,6,7, 192,192,192,192)); + mant = spu_subx(mant, sign, borrow); + + return (spu_extract((vec_llong2)(mant), 0)); +} + +#endif /* _LLROUNDF_H_ */ |