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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/libs/softfloat-3e/source/s_normRoundPackToExtF80.c | |
parent | Initial commit. (diff) | |
download | virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libs/softfloat-3e/source/s_normRoundPackToExtF80.c')
-rw-r--r-- | src/libs/softfloat-3e/source/s_normRoundPackToExtF80.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/libs/softfloat-3e/source/s_normRoundPackToExtF80.c b/src/libs/softfloat-3e/source/s_normRoundPackToExtF80.c new file mode 100644 index 00000000..6d98e525 --- /dev/null +++ b/src/libs/softfloat-3e/source/s_normRoundPackToExtF80.c @@ -0,0 +1,72 @@ + +/*============================================================================ + +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, 2016 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 <stdbool.h> +#include <stdint.h> +#include "platform.h" +#include "internals.h" + +extFloat80_t + softfloat_normRoundPackToExtF80( + bool sign, + int_fast32_t exp, + uint_fast64_t sig, + uint_fast64_t sigExtra, + uint_fast8_t roundingPrecision + SOFTFLOAT_STATE_DECL_COMMA + ) +{ + int_fast8_t shiftDist; + struct uint128 sig128; + + if ( ! sig ) { + exp -= 64; + sig = sigExtra; + sigExtra = 0; + } + shiftDist = softfloat_countLeadingZeros64( sig ); + exp -= shiftDist; + if ( shiftDist ) { + sig128 = softfloat_shortShiftLeft128( sig, sigExtra, shiftDist ); + sig = sig128.v64; + sigExtra = sig128.v0; + } + return + softfloat_roundPackToExtF80( + sign, exp, sig, sigExtra, roundingPrecision SOFTFLOAT_STATE_ARG_COMMA ); + +} + |