Changeset 56a39dde in mainline

Timestamp:

2006-01-09T20:43:12Z (19 years ago)

Author:

Josef Cejka <malyzelenyhnus@…>

Branches:

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

Children:

ecfd7e5

Parents:

feef1cd

Message:

Bugfixes in softfloat conversion functions.

Location:

softfloat/generic

Files:

• conversion.c (modified) (3 diffs)
• softfloat.c (modified) (11 diffs)

softfloat/generic/conversion.c

@@ -60 +60 @@
                         --result.parts.exp;
                 };
+                
+                ++result.parts.exp;
                 result.parts.mantisa = mant;
         };
@@ -109 +111 @@
                 
                 exp *= -1;      
-                
                 if (exp > FLOAT32_MANTISA_SIZE ) {
                         /* FIXME: underflow */
@@ -118 +119 @@
                 /* denormalized */
                 
-                mant = result.parts.mantisa >> 1; 
+                mant = a.parts.mantisa; 
                 mant |= 0x10000000000000ll; /* denormalize and set hidden bit */
+                
+                mant >>= (FLOAT64_MANTISA_SIZE - FLOAT32_MANTISA_SIZE + 1);
                 
                 while (exp > 0) {

softfloat/generic/softfloat.c

@@ -50 +50 @@
         }
         return addFloat32(fa,fb).f;
-};
+}
 
 float __subsf3(float a, float b)
@@ -62 +62 @@
         }
         return subFloat32(fa,fb).f;
-};
+}
 
 float __mulsf3(float a, float b) 
@@ -78 +78 @@
         fb.f=b;
 //      return  divFloat32(fa, fb).f;
-};
+}
 
 float __negsf2(float a)
@@ -86 +86 @@
         fa.parts.sign=!fa.parts.sign;
         return fa.f;
-};
+}
 
 double __negdf2(double a)
@@ -94 +94 @@
         fa.parts.sign=!fa.parts.sign;
         return fa.d;
-};
+}
 
 /* Conversion functions */
@@ -103 +103 @@
         fa.f = a;
         return convertFloat32ToFloat64(fa).d;
-};
+}
 
 float __truncdfsf2(double a) 
@@ -111 +111 @@
         return convertFloat64ToFloat32(da).f;
 }
+
 /* Comparison functions */
 
@@ -144 +145 @@
         fb.f=b;
         return ((isFloat32NaN(fa))||(isFloat32NaN(fb)));
-};
+}
 
 /** 
@@ -159 +160 @@
                 };
         return isFloat32eq(fa,fb)-1;
-};
+}
 
 /* strange behavior, but it was in gcc documentation */
@@ -165 +166 @@
 {
         return __eqsf2(a,b);
-};
+}
 
 /* return value >= 0 if a>=b and neither is NaN */
@@ -245 +246 @@
 /* Other functions */
 
+float __powisf2(float a, int b)
+{
+//TODO: 
+}
+
+float __mulsc3(float a, float b, float c, float d)
+{
+//TODO:
+}
+
+float __divsc3(float a, float b, float c, float d)
+{
+//TODO:
+}
+