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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:49:04 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:49:04 +0000 |
commit | 16f504a9dca3fe3b70568f67b7d41241ae485288 (patch) | |
tree | c60f36ada0496ba928b7161059ba5ab1ab224f9d /src/libs/softfloat-3e/source/s_sub256M.c | |
parent | Initial commit. (diff) | |
download | virtualbox-16f504a9dca3fe3b70568f67b7d41241ae485288.tar.xz virtualbox-16f504a9dca3fe3b70568f67b7d41241ae485288.zip |
Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libs/softfloat-3e/source/s_sub256M.c')
-rw-r--r-- | src/libs/softfloat-3e/source/s_sub256M.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/libs/softfloat-3e/source/s_sub256M.c b/src/libs/softfloat-3e/source/s_sub256M.c new file mode 100644 index 00000000..59ea1137 --- /dev/null +++ b/src/libs/softfloat-3e/source/s_sub256M.c @@ -0,0 +1,66 @@ + +/*============================================================================ + +This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic +Package, Release 3e, by John R. Hauser. + +Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of +California. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions, and the following disclaimer. + + 2. 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. + + 3. Neither the name of the University 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 REGENTS 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 REGENTS 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. + +=============================================================================*/ + +#include <stdint.h> +#include "platform.h" +#include "primitiveTypes.h" + +#ifndef softfloat_sub256M +# include "primitives.h" /* VBox: Missing prototype */ + +void + softfloat_sub256M( + const uint64_t *aPtr, const uint64_t *bPtr, uint64_t *zPtr ) +{ + unsigned int index; + uint_fast8_t borrow; + uint64_t wordA, wordB; + + index = indexWordLo( 4 ); + borrow = 0; + for (;;) { + wordA = aPtr[index]; + wordB = bPtr[index]; + zPtr[index] = wordA - wordB - borrow; + if ( index == indexWordHi( 4 ) ) break; + borrow = borrow ? (wordA <= wordB) : (wordA < wordB); + index += wordIncr; + } + +} + +#endif + |