1 files changed, 111 insertions, 0 deletions
diff --git a/src/libs/softfloat-3e/source/s_compareNonnormExtF80M.c b/src/libs/softfloat-3e/source/s_compareNonnormExtF80M.c
new file mode 100644
index 00000000..6712e576
--- /dev/null
+++ b/src/libs/softfloat-3e/source/s_compareNonnormExtF80M.c
@@ -0,0 +1,111 @@
+
+/*============================================================================
+
+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 <stdint.h>
+#include "platform.h"
+#include "internals.h"
+#include "softfloat_types.h"
+
+int
+ softfloat_compareNonnormExtF80M(
+     const struct extFloat80M *aSPtr, const struct extFloat80M *bSPtr )
+{
+    uint_fast16_t uiA64, uiB64;
+    uint64_t sigA;
+    bool signB;
+    uint64_t sigB;
+    int32_t expA, expB;
+
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    uiA64 = aSPtr->signExp;
+    uiB64 = bSPtr->signExp;
+    sigA = aSPtr->signif;
+    signB = signExtF80UI64( uiB64 );
+    sigB = bSPtr->signif;
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( (uiA64 ^ uiB64) & 0x8000 ) {
+        if ( ! (sigA | sigB) ) return 0;
+        goto resultFromSignB;
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    expA = expExtF80UI64( uiA64 );
+    expB = expExtF80UI64( uiB64 );
+    if ( expA == 0x7FFF ) {
+        if (expB == 0x7FFF) return 0;
+        signB = ! signB;
+        goto resultFromSignB;
+    }
+    if ( expB == 0x7FFF ) {
+        goto resultFromSignB;
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( ! expA ) expA = 1;
+    if ( ! (sigA & UINT64_C( 0x8000000000000000 )) ) {
+        if ( sigA ) {
+            expA += softfloat_normExtF80SigM( &sigA );
+        } else {
+            expA = -128;
+        }
+    }
+    if ( ! expB ) expB = 1;
+    if ( ! (sigB & UINT64_C( 0x8000000000000000 )) ) {
+        if ( sigB ) {
+            expB += softfloat_normExtF80SigM( &sigB );
+        } else {
+            expB = -128;
+        }
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( signB ) {
+        if ( expA < expB ) return 1;
+        if ( (expB < expA) || (sigB < sigA) ) return -1;
+    } else {
+        if ( expB < expA ) return 1;
+        if ( (expA < expB) || (sigA < sigB) ) return -1;
+    }
+    return (sigA != sigB);
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+ resultFromSignB:
+    return signB ? 1 : -1;
+
+}
+