From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- src/libs/softfloat-3e/source/s_mul64To128M.c | 68 ++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 src/libs/softfloat-3e/source/s_mul64To128M.c (limited to 'src/libs/softfloat-3e/source/s_mul64To128M.c') diff --git a/src/libs/softfloat-3e/source/s_mul64To128M.c b/src/libs/softfloat-3e/source/s_mul64To128M.c new file mode 100644 index 00000000..cd152897 --- /dev/null +++ b/src/libs/softfloat-3e/source/s_mul64To128M.c @@ -0,0 +1,68 @@ + +/*============================================================================ + +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 +#include "platform.h" +#include "primitiveTypes.h" + +#ifndef softfloat_mul64To128M + +void softfloat_mul64To128M( uint64_t a, uint64_t b, uint32_t *zPtr ) +{ + uint32_t a32, a0, b32, b0; + uint64_t z0, mid1, z64, mid; + + a32 = a>>32; + a0 = a; + b32 = b>>32; + b0 = b; + z0 = (uint64_t) a0 * b0; + mid1 = (uint64_t) a32 * b0; + mid = mid1 + (uint64_t) a0 * b32; + z64 = (uint64_t) a32 * b32; + z64 += (uint64_t) (mid < mid1)<<32 | mid>>32; + mid <<= 32; + z0 += mid; + zPtr[indexWord( 4, 1 )] = z0>>32; + zPtr[indexWord( 4, 0 )] = z0; + z64 += (z0 < mid); + zPtr[indexWord( 4, 3 )] = z64>>32; + zPtr[indexWord( 4, 2 )] = z64; + +} + +#endif + -- cgit v1.2.3