1 files changed, 93 insertions, 0 deletions
diff --git a/lib/libutils/isoc/arch/arm/softfloat/source/f32_to_extF80.c b/lib/libutils/isoc/arch/arm/softfloat/source/f32_to_extF80.c
new file mode 100644
index 0000000..7e7b279
--- /dev/null
+++ b/lib/libutils/isoc/arch/arm/softfloat/source/f32_to_extF80.c
@@ -0,0 +1,93 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3a, 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 f32_to_extF80( float32_t a )
+{
+    union ui32_f32 uA;
+    uint_fast32_t uiA;
+    bool sign;
+    int_fast16_t exp;
+    uint_fast32_t sig;
+    struct commonNaN commonNaN;
+    struct uint128 uiZ;
+    uint_fast16_t uiZ64;
+    uint_fast64_t uiZ0;
+    struct exp16_sig32 normExpSig;
+    union { struct extFloat80M s; extFloat80_t f; } uZ;
+
+    uA.f = a;
+    uiA = uA.ui;
+    sign = signF32UI( uiA );
+    exp  = expF32UI( uiA );
+    sig  = fracF32UI( uiA );
+    if ( exp == 0xFF ) {
+        if ( sig ) {
+            softfloat_f32UIToCommonNaN( uiA, &commonNaN );
+            uiZ = softfloat_commonNaNToExtF80UI( &commonNaN );
+            uiZ64 = uiZ.v64;
+            uiZ0  = uiZ.v0;
+        } else {
+            uiZ64 = packToExtF80UI64( sign, 0x7FFF );
+            uiZ0  = UINT64_C( 0x8000000000000000 );
+        }
+        goto uiZ;
+    }
+    if ( ! exp ) {
+        if ( ! sig ) {
+            uiZ64 = packToExtF80UI64( sign, 0 );
+            uiZ0  = 0;
+            goto uiZ;
+        }
+        normExpSig = softfloat_normSubnormalF32Sig( sig );
+        exp = normExpSig.exp;
+        sig = normExpSig.sig;
+    }
+    uiZ64 = packToExtF80UI64( sign, exp + 0x3F80 );
+    uiZ0  = (uint_fast64_t) (sig | 0x00800000)<<40;
+ uiZ:
+    uZ.s.signExp = uiZ64;
+    uZ.s.signif  = uiZ0;
+    return uZ.f;
+
+}
+