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Diffstat (limited to 'newlib/libm/machine/spu/headers/fesetround.h')
| -rw-r--r-- | newlib/libm/machine/spu/headers/fesetround.h | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/newlib/libm/machine/spu/headers/fesetround.h b/newlib/libm/machine/spu/headers/fesetround.h deleted file mode 100644 index 3cda4c80d..000000000 --- a/newlib/libm/machine/spu/headers/fesetround.h +++ /dev/null @@ -1,104 +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 _FESETROUND_H_ -#define _FESETROUND_H_ 1 - -#include <spu_intrinsics.h> -#include <fenv.h> - -#define FE_MASK_ROUND (__FE_ROUND_ELE_0 | __FE_ROUND_ELE_1) - -#define SMALL (FE_MASK_ROUND - 1) -#define LARGE (FE_MASK_ROUND + \ - ((__FE_SPU_DOWNWARD << 2) | __FE_SPU_DOWNWARD) + 1) - -static __inline int _fesetround(int mode) -{ - unsigned int umode; - vec_uint4 vec_mode; - vec_uint4 valid, fail; - vec_uint4 cur_fpscr, new_fpscr, mask_fpscr; - vec_uint4 const valid_ele0 = - { FE_TONEAREST, FE_TOWARDZERO, FE_UPWARD, FE_DOWNWARD }; - vec_uint4 const valid_ele1 = - { FE_TONEAREST_1, FE_TOWARDZERO_1, FE_UPWARD_1, FE_DOWNWARD_1 }; - vec_uint4 const too_large = { LARGE, LARGE, LARGE, LARGE }; - vec_uchar16 const splat_ele0 = - { 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3 }; - vec_uint4 const clear_non_ele0 = { 0xffffffff, 0, 0, 0 }; - - /* - * There are 24 valid values, check for a range plus the other 8 - * rather than check for specific bit settings. - * - * These are all the valid values: - * 0xf00 through 0xf0f (SMALL + 1 through LARGE - 1, 16 values) - * 0xc00 0xc04 0xc08 0xc0c (in ele0) - * 0x300 0x301 0x302 0x303 (in ele1) - */ - umode = mode; - vec_mode = spu_splats(umode); - valid = spu_cmpeq(vec_mode, valid_ele0); - valid = spu_or(valid, spu_cmpeq(vec_mode, valid_ele1)); - valid = spu_or(valid, spu_cmpgt(vec_mode, SMALL)); - valid = spu_and(valid, spu_cmpgt(too_large, vec_mode)); - - fail = spu_gather(valid); - fail = spu_cmpeq(fail, 0); - /* - * set all elements of fail to the value of fail's element 0, so - * we can select the current fpscr values on failure. - */ - fail = spu_shuffle(fail, fail, splat_ele0); - - cur_fpscr = spu_mffpscr(); - /* - * We don't have to mask the round element selection out since it - * is shifted out. - */ - new_fpscr = spu_promote(umode << 8, 0); - new_fpscr = spu_and(new_fpscr, clear_non_ele0); - /* - * Use the element bits of the mode to set the mask. - */ - mask_fpscr = spu_promote((umode & FE_MASK_ROUND), 0); - new_fpscr = spu_sel(cur_fpscr, new_fpscr, mask_fpscr); - /* - * Use the current fpscr value if the round mode was invalid - */ - new_fpscr = spu_sel(new_fpscr, cur_fpscr, fail); - spu_mtfpscr(new_fpscr); - - return spu_extract(fail, 0); -} -#endif /* _FESETROUND_H_ */ |