1 files changed, 85 insertions, 0 deletions
diff --git a/src/libs/softfloat-3e/source/f128_to_i32.c b/src/libs/softfloat-3e/source/f128_to_i32.c
new file mode 100644
index 00000000..694e10ce
--- /dev/null
+++ b/src/libs/softfloat-3e/source/f128_to_i32.c
@@ -0,0 +1,85 @@
+
+/*============================================================================
+
+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, 2017 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"
+
+int_fast32_t f128_to_i32( float128_t a, uint_fast8_t roundingMode, bool exact SOFTFLOAT_STATE_DECL_COMMA )
+{
+    union ui128_f128 uA;
+    uint_fast64_t uiA64, uiA0;
+    bool sign;
+    int_fast32_t exp;
+    uint_fast64_t sig64, sig0;
+    int_fast32_t shiftDist;
+
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    uA.f = a;
+    uiA64 = uA.ui.v64;
+    uiA0  = uA.ui.v0;
+    sign  = signF128UI64( uiA64 );
+    exp   = expF128UI64( uiA64 );
+    sig64 = fracF128UI64( uiA64 );
+    sig0  = uiA0;
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+#if (i32_fromNaN != i32_fromPosOverflow) || (i32_fromNaN != i32_fromNegOverflow)
+    if ( (exp == 0x7FFF) && (sig64 | sig0) ) {
+#if (i32_fromNaN == i32_fromPosOverflow)
+        sign = 0;
+#elif (i32_fromNaN == i32_fromNegOverflow)
+        sign = 1;
+#else
+        softfloat_raiseFlags( softfloat_flag_invalid SOFTFLOAT_STATE_ARG_COMMA );
+        return i32_fromNaN;
+#endif
+    }
+#endif
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( exp ) sig64 |= UINT64_C( 0x0001000000000000 );
+    sig64 |= (sig0 != 0);
+    shiftDist = 0x4023 - exp;
+    if ( 0 < shiftDist ) sig64 = softfloat_shiftRightJam64( sig64, shiftDist );
+    return softfloat_roundToI32( sign, sig64, roundingMode, exact SOFTFLOAT_STATE_ARG_COMMA );
+
+}
+