1 files changed, 108 insertions, 0 deletions
diff --git a/src/libs/softfloat-3e/source/8086/s_propagateNaNExtF80M.c b/src/libs/softfloat-3e/source/8086/s_propagateNaNExtF80M.c
new file mode 100644
index 00000000..8b30c87a
--- /dev/null
+++ b/src/libs/softfloat-3e/source/8086/s_propagateNaNExtF80M.c
@@ -0,0 +1,108 @@
+
+/*============================================================================
+
+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"
+
+/*----------------------------------------------------------------------------
+| Assuming at least one of the two 80-bit extended floating-point values
+| pointed to by `aSPtr' and `bSPtr' is a NaN, stores the combined NaN result
+| at the location pointed to by `zSPtr'.  If either original floating-point
+| value is a signaling NaN, the invalid exception is raised.
+*----------------------------------------------------------------------------*/
+void
+ softfloat_propagateNaNExtF80M(
+     const struct extFloat80M *aSPtr,
+     const struct extFloat80M *bSPtr,
+     struct extFloat80M *zSPtr
+     SOFTFLOAT_STATE_DECL_COMMA
+ )
+{
+    bool isSigNaNA;
+    const struct extFloat80M *sPtr;
+    bool isSigNaNB;
+    uint_fast16_t uiB64;
+    uint64_t uiB0;
+    uint_fast16_t uiA64;
+    uint64_t uiA0;
+    uint_fast16_t uiMagA64, uiMagB64;
+
+    isSigNaNA = extF80M_isSignalingNaN( (const extFloat80_t *) aSPtr );
+    sPtr = aSPtr;
+    if ( ! bSPtr ) {
+        if ( isSigNaNA ) softfloat_raiseFlags( softfloat_flag_invalid SOFTFLOAT_STATE_ARG_COMMA );
+        goto copy;
+    }
+    isSigNaNB = extF80M_isSignalingNaN( (const extFloat80_t *) bSPtr );
+    if ( isSigNaNA | isSigNaNB ) {
+        softfloat_raiseFlags( softfloat_flag_invalid SOFTFLOAT_STATE_ARG_COMMA );
+        if ( isSigNaNA ) {
+            uiB64 = bSPtr->signExp;
+            if ( isSigNaNB ) goto returnLargerUIMag;
+            uiB0 = bSPtr->signif;
+            if ( isNaNExtF80UI( uiB64, uiB0 ) ) goto copyB;
+            goto copy;
+        } else {
+            uiA64 = aSPtr->signExp;
+            uiA0 = aSPtr->signif;
+            if ( isNaNExtF80UI( uiA64, uiA0 ) ) goto copy;
+            goto copyB;
+        }
+    }
+    uiB64 = bSPtr->signExp;
+ returnLargerUIMag:
+    uiA64 = aSPtr->signExp;
+    uiMagA64 = uiA64 & 0x7FFF;
+    uiMagB64 = uiB64 & 0x7FFF;
+    if ( uiMagA64 < uiMagB64 ) goto copyB;
+    if ( uiMagB64 < uiMagA64 ) goto copy;
+    uiA0 = aSPtr->signif;
+    uiB0 = bSPtr->signif;
+    if ( uiA0 < uiB0 ) goto copyB;
+    if ( uiB0 < uiA0 ) goto copy;
+    if ( uiA64 < uiB64 ) goto copy;
+ copyB:
+    sPtr = bSPtr;
+ copy:
+    zSPtr->signExp = sPtr->signExp;
+    zSPtr->signif = sPtr->signif | UINT64_C( 0xC000000000000000 );
+
+}
+