WebSVN – HelenOS-historic – Diff – /uspace/trunk/softfloat/generic/conversion.c

  */
 #include "sftypes.h"
 #include "conversion.h"
 #include "comparison.h"
+#include "common.h"
 float64 convertFloat32ToFloat64(float32 a)
+{
     float64 result;
     __u64 frac;
         return MAX_INT32;
+    }
     return (__s32)_float64_to_uint64_helper(a);
+}
+/** Convert unsigned integer to float32
+ *
+ *
+ */
+float32 uint32_to_float32(__u32 i)
+{
+    int counter;
+    __s32 exp;
+    float32 result;
+    result.parts.sign = 0;
+    result.parts.fraction = 0;
+    counter = countZeroes32(i);
+    exp = FLOAT32_BIAS + 32 - counter - 1;
+    if (counter == 32) {
+        result.binary = 0;
+        return result;
+    }
+    if (counter > 0) {
+        i <<= counter - 1;
+    } else {
+        i >>= 1;
+    }
+    roundFloat32(&exp, &i);
+    result.parts.fraction = i >> 7;
+    result.parts.exp = exp;
+    return result;
+}
+float32 int32_to_float32(__s32 i)
+{
+    float32 result;
+    if (i < 0) {
+        result = uint32_to_float32((__u32)(-i));
+    } else {
+        result = uint32_to_float32((__u32)i);
+    }
+    result.parts.sign = i < 0;
+    return result;
+}
+float32 uint64_to_float32(__u64 i)
+{
+}
+float32 int64_to_float32(__s64 i)
+{
+    float32 result;
+    if (i < 0) {
+        result = uint64_to_float32((__u64)(-i));
+    } else {
+        result = uint64_to_float32((__u64)i);
+    }
+    result.parts.sign = i < 0;
+    return result;
+}

Subversion Repositories HelenOS-historic