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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
commitf215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch)
tree6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/libs/softfloat-3e/source/ui64_to_f128M.c
parentInitial commit. (diff)
downloadvirtualbox-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/ui64_to_f128M.c')
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+
+/*============================================================================
+
+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 <stdint.h>
+#include "platform.h"
+#include "internals.h"
+#include "softfloat.h"
+
+#ifdef SOFTFLOAT_FAST_INT64
+
+void ui64_to_f128M( uint64_t a, float128_t *zPtr SOFTFLOAT_STATE_DECL_COMMA )
+{
+
+ *zPtr = ui64_to_f128( a SOFTFLOAT_STATE_ARG_COMMA );
+
+}
+
+#else
+
+void ui64_to_f128M( uint64_t a, float128_t *zPtr SOFTFLOAT_STATE_DECL_COMMA )
+{
+ uint32_t *zWPtr, uiZ96, uiZ64;
+ uint_fast8_t shiftDist;
+ uint32_t *ptr;
+ SOFTFLOAT_STATE_NOREF();
+
+ zWPtr = (uint32_t *) zPtr;
+ uiZ96 = 0;
+ uiZ64 = 0;
+ zWPtr[indexWord( 4, 1 )] = 0;
+ zWPtr[indexWord( 4, 0 )] = 0;
+ if ( a ) {
+ shiftDist = softfloat_countLeadingZeros64( a ) + 17;
+ if ( shiftDist < 32 ) {
+ ptr = zWPtr + indexMultiwordHi( 4, 3 );
+ ptr[indexWord( 3, 2 )] = 0;
+ ptr[indexWord( 3, 1 )] = a>>32;
+ ptr[indexWord( 3, 0 )] = a;
+ softfloat_shortShiftLeft96M( ptr, shiftDist, ptr );
+ ptr[indexWordHi( 3 )] =
+ packToF128UI96( 0, 0x404E - shiftDist, ptr[indexWordHi( 3 )] );
+ return;
+ }
+ a <<= shiftDist - 32;
+ uiZ96 = packToF128UI96( 0, 0x404E - shiftDist, a>>32 );
+ uiZ64 = a;
+ }
+ zWPtr[indexWord( 4, 3 )] = uiZ96;
+ zWPtr[indexWord( 4, 2 )] = uiZ64;
+
+}
+
+#endif
+