Changeset a96c570 in mainline for softfloat/generic/softfloat.c

Timestamp:

2006-01-22T15:51:00Z (20 years ago)

Author:

Josef Cejka <malyzelenyhnus@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

bff16dd

Parents:

4a5abddd

Message:

Added function for 64bit subtraction.
Fixed bug in recognizing signaling and quiet NaNs.
Some 64-bit add and sub testing done.

File:

• softfloat/generic/softfloat.c (modified) (2 diffs)

softfloat/generic/softfloat.c

@@ -57 +57 @@
 }
 
+double __adddf3(double a, double b)
+{
+        float64 da, db;
+        da.d=a;
+        db.d=b;
+        if (da.parts.sign!=db.parts.sign) {
+                if (da.parts.sign) {
+                        da.parts.sign=0;
+                        return subFloat64(db,da).d;
+                };
+                db.parts.sign=0;
+                return subFloat64(da,db).d;
+        }
+        return addFloat64(da,db).d;
+}
+
 float __subsf3(float a, float b)
 {
@@ -67 +83 @@
         }
         return subFloat32(fa,fb).f;
+}
+
+double __subdf3(double a, double b)
+{
+        float64 da, db;
+        da.d = a;
+        db.d = b;
+        if (da.parts.sign != db.parts.sign) {
+                db.parts.sign = !db.parts.sign;
+                return addFloat64(da, db).d;
+        }
+        return subFloat64(da, db).d;
 }