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-rw-r--r--src/libs/softfloat-3e/source/extF80_mul.c158
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diff --git a/src/libs/softfloat-3e/source/extF80_mul.c b/src/libs/softfloat-3e/source/extF80_mul.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 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"
+#include "specialize.h"
+#include "softfloat.h"
+
+extFloat80_t extF80_mul( extFloat80_t a, extFloat80_t b SOFTFLOAT_STATE_DECL_COMMA )
+{
+ union { struct extFloat80M s; extFloat80_t f; } uA;
+ uint_fast16_t uiA64;
+ uint_fast64_t uiA0;
+ bool signA;
+ int_fast32_t expA;
+ uint_fast64_t sigA;
+ union { struct extFloat80M s; extFloat80_t f; } uB;
+ uint_fast16_t uiB64;
+ uint_fast64_t uiB0;
+ bool signB;
+ int_fast32_t expB;
+ uint_fast64_t sigB;
+ bool signZ;
+ uint_fast64_t magBits;
+ struct exp32_sig64 normExpSig;
+ int_fast32_t expZ;
+ struct uint128 sig128Z, uiZ;
+ uint_fast16_t uiZ64;
+ uint_fast64_t uiZ0;
+ union { struct extFloat80M s; extFloat80_t f; } uZ;
+
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ uA.f = a;
+ uiA64 = uA.s.signExp;
+ uiA0 = uA.s.signif;
+ signA = signExtF80UI64( uiA64 );
+ expA = expExtF80UI64( uiA64 );
+ sigA = uiA0;
+ uB.f = b;
+ uiB64 = uB.s.signExp;
+ uiB0 = uB.s.signif;
+ signB = signExtF80UI64( uiB64 );
+ expB = expExtF80UI64( uiB64 );
+ sigB = uiB0;
+ signZ = signA ^ signB;
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ if ( expA == 0x7FFF ) {
+ if (
+ (sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
+ || ((expB == 0x7FFF) && (sigB & UINT64_C( 0x7FFFFFFFFFFFFFFF )))
+ ) {
+ goto propagateNaN;
+ }
+ magBits = expB | sigB;
+ goto infArg;
+ }
+ if ( expB == 0x7FFF ) {
+ if ( sigB & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) goto propagateNaN;
+ magBits = expA | sigA;
+ goto infArg;
+ }
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ if ( ! expA ) expA = 1;
+ if ( ! (sigA & UINT64_C( 0x8000000000000000 )) ) {
+ if ( ! sigA ) goto zero;
+ normExpSig = softfloat_normSubnormalExtF80Sig( sigA );
+ expA += normExpSig.exp;
+ sigA = normExpSig.sig;
+ }
+ if ( ! expB ) expB = 1;
+ if ( ! (sigB & UINT64_C( 0x8000000000000000 )) ) {
+ if ( ! sigB ) goto zero;
+ normExpSig = softfloat_normSubnormalExtF80Sig( sigB );
+ expB += normExpSig.exp;
+ sigB = normExpSig.sig;
+ }
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ expZ = expA + expB - 0x3FFE;
+ sig128Z = softfloat_mul64To128( sigA, sigB );
+ if ( sig128Z.v64 < UINT64_C( 0x8000000000000000 ) ) {
+ --expZ;
+ sig128Z =
+ softfloat_add128(
+ sig128Z.v64, sig128Z.v0, sig128Z.v64, sig128Z.v0 );
+ }
+ return
+ softfloat_roundPackToExtF80(
+ signZ, expZ, sig128Z.v64, sig128Z.v0, extF80_roundingPrecision SOFTFLOAT_STATE_ARG_COMMA );
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ propagateNaN:
+ uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, uiB64, uiB0 SOFTFLOAT_STATE_ARG_COMMA );
+ uiZ64 = uiZ.v64;
+ uiZ0 = uiZ.v0;
+ goto uiZ;
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ infArg:
+ if ( ! magBits ) {
+ softfloat_raiseFlags( softfloat_flag_invalid SOFTFLOAT_STATE_ARG_COMMA );
+ uiZ64 = defaultNaNExtF80UI64;
+ uiZ0 = defaultNaNExtF80UI0;
+ } else {
+ uiZ64 = packToExtF80UI64( signZ, 0x7FFF );
+ uiZ0 = UINT64_C( 0x8000000000000000 );
+ }
+ goto uiZ;
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ zero:
+ uiZ64 = packToExtF80UI64( signZ, 0 );
+ uiZ0 = 0;
+ uiZ:
+ uZ.s.signExp = uiZ64;
+ uZ.s.signif = uiZ0;
+ return uZ.f;
+
+}
+