Upgrade to softfloat3e.

This should solve licensing problems as well.
2024-06-09 23:08:46 +02:00
parent 4b77ef6823
commit 0f29bcddf1
271 changed files with 25882 additions and 10441 deletions
--- a/src/cpu/softfloat3e/f64_addsub.c
+++ b/src/cpu/softfloat3e/f64_addsub.c
@@ -0,0 +1,70 @@
+/*============================================================================
+
+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 "internals.h"
+#include "softfloat.h"
+
+extern float64 softfloat_addMagsF64(uint64_t, uint64_t, bool, struct softfloat_status_t *);
+extern float64 softfloat_subMagsF64(uint64_t, uint64_t, bool, struct softfloat_status_t *);
+
+float64 f64_add(float64 a, float64 b, struct softfloat_status_t *status)
+{
+    bool signA;
+    bool signB;
+
+    signA = signF64UI(a);
+    signB = signF64UI(b);
+    if (signA == signB) {
+        return softfloat_addMagsF64(a, b, signA, status);
+    } else {
+        return softfloat_subMagsF64(a, b, signA, status);
+    }
+}
+
+float64 f64_sub(float64 a, float64 b, struct softfloat_status_t *status)
+{
+    bool signA;
+    bool signB;
+
+    signA = signF64UI(a);
+    signB = signF64UI(b);
+    if (signA == signB) {
+        return softfloat_subMagsF64(a, b, signA, status);
+    } else {
+        return softfloat_addMagsF64(a, b, signA, status);
+    }
+}