diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index be1206db80..2b2008502c 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -5965,20 +5965,20 @@ int float128_unordered_quiet( float128 a, float128 b STATUS_PARAM )
 }
 
 /* misc functions */
-float32 uint32_to_float32( unsigned int a STATUS_PARAM )
+float32 uint32_to_float32( uint32 a STATUS_PARAM )
 {
     return int64_to_float32(a STATUS_VAR);
 }
 
-float64 uint32_to_float64( unsigned int a STATUS_PARAM )
+float64 uint32_to_float64( uint32 a STATUS_PARAM )
 {
     return int64_to_float64(a STATUS_VAR);
 }
 
-unsigned int float32_to_uint32( float32 a STATUS_PARAM )
+uint32 float32_to_uint32( float32 a STATUS_PARAM )
 {
     int64_t v;
-    unsigned int res;
+    uint32 res;
 
     v = float32_to_int64(a STATUS_VAR);
     if (v < 0) {
@@ -5993,10 +5993,10 @@ unsigned int float32_to_uint32( float32 a STATUS_PARAM )
     return res;
 }
 
-unsigned int float32_to_uint32_round_to_zero( float32 a STATUS_PARAM )
+uint32 float32_to_uint32_round_to_zero( float32 a STATUS_PARAM )
 {
     int64_t v;
-    unsigned int res;
+    uint32 res;
 
     v = float32_to_int64_round_to_zero(a STATUS_VAR);
     if (v < 0) {
@@ -6029,10 +6029,10 @@ uint16 float32_to_uint16_round_to_zero( float32 a STATUS_PARAM )
     return res;
 }
 
-unsigned int float64_to_uint32( float64 a STATUS_PARAM )
+uint32 float64_to_uint32( float64 a STATUS_PARAM )
 {
     int64_t v;
-    unsigned int res;
+    uint32 res;
 
     v = float64_to_int64(a STATUS_VAR);
     if (v < 0) {
@@ -6047,10 +6047,10 @@ unsigned int float64_to_uint32( float64 a STATUS_PARAM )
     return res;
 }
 
-unsigned int float64_to_uint32_round_to_zero( float64 a STATUS_PARAM )
+uint32 float64_to_uint32_round_to_zero( float64 a STATUS_PARAM )
 {
     int64_t v;
-    unsigned int res;
+    uint32 res;
 
     v = float64_to_int64_round_to_zero(a STATUS_VAR);
     if (v < 0) {
diff --git a/fpu/softfloat.h b/fpu/softfloat.h
index e1bbe01127..618ddee569 100644
--- a/fpu/softfloat.h
+++ b/fpu/softfloat.h
@@ -216,8 +216,8 @@ void float_raise( int8 flags STATUS_PARAM);
 *----------------------------------------------------------------------------*/
 float32 int32_to_float32( int32 STATUS_PARAM );
 float64 int32_to_float64( int32 STATUS_PARAM );
-float32 uint32_to_float32( unsigned int STATUS_PARAM );
-float64 uint32_to_float64( unsigned int STATUS_PARAM );
+float32 uint32_to_float32( uint32 STATUS_PARAM );
+float64 uint32_to_float64( uint32 STATUS_PARAM );
 floatx80 int32_to_floatx80( int32 STATUS_PARAM );
 float128 int32_to_float128( int32 STATUS_PARAM );
 float32 int64_to_float32( int64 STATUS_PARAM );