[444] | 1 | /* s_fma.c -- define fma |
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| 2 | Copyright (c) 2011, 2012 ARM Ltd. All rights reserved. |
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| 3 | |
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| 4 | Redistribution and use in source and binary forms, with or without |
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| 5 | modification, are permitted provided that the following conditions |
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| 6 | are met: |
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| 7 | 1. Redistributions of source code must retain the above copyright |
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| 8 | notice, this list of conditions and the following disclaimer. |
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| 9 | 2. Redistributions in binary form must reproduce the above copyright |
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| 10 | notice, this list of conditions and the following disclaimer in the |
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| 11 | documentation and/or other materials provided with the distribution. |
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| 12 | 3. The name of the company may not be used to endorse or promote |
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| 13 | products derived from this software without specific prior written |
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| 14 | permission. |
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| 15 | |
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| 16 | THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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| 17 | WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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| 18 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 19 | IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 20 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
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| 21 | TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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| 22 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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| 23 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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| 24 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 25 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ |
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| 26 | |
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| 27 | #include <math.h> |
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| 28 | |
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| 29 | double |
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| 30 | fma (double x, double y, double z) |
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| 31 | { |
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| 32 | double result; |
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| 33 | asm ("fmadd\t%d0, %d1, %d2, %d3" : "=w" (result) : "w" (x), "w" (y), "w" (z)); |
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| 34 | return result; |
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| 35 | } |
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