1 files changed, 54 insertions, 2 deletions
diff --git a/fpu/softfloat-native.h b/fpu/softfloat-native.h
index 817a2a813..cf2da4c25 100644
--- a/fpu/softfloat-native.h
+++ b/fpu/softfloat-native.h
@@ -140,9 +140,9 @@ enum {
 #endif
 
 typedef struct float_status {
-    signed char float_rounding_mode;
+    int float_rounding_mode;
 #ifdef FLOATX80
-    signed char floatx80_rounding_precision;
+    int floatx80_rounding_precision;
 #endif
 } float_status;
 
@@ -258,6 +258,23 @@ INLINE float32 float32_chs(float32 a)
     return -a;
 }
 
+INLINE float32 float32_is_infinity(float32 a)
+{
+    return fpclassify(a) == FP_INFINITE;
+}
+
+INLINE float32 float32_is_neg(float32 a)
+{
+    float32u u;
+    u.f = a;
+    return u.i >> 31;
+}
+
+INLINE float32 float32_is_zero(float32 a)
+{
+    return fpclassify(a) == FP_ZERO;
+}
+
 INLINE float32 float32_scalbn(float32 a, int n)
 {
     return scalbnf(a, n);
@@ -350,6 +367,23 @@ INLINE float64 float64_chs(float64 a)
     return -a;
 }
 
+INLINE float64 float64_is_infinity(float64 a)
+{
+    return fpclassify(a) == FP_INFINITE;
+}
+
+INLINE float64 float64_is_neg(float64 a)
+{
+    float64u u;
+    u.f = a;
+    return u.i >> 63;
+}
+
+INLINE float64 float64_is_zero(float64 a)
+{
+    return fpclassify(a) == FP_ZERO;
+}
+
 INLINE float64 float64_scalbn(float64 a, int n)
 {
     return scalbn(a, n);
@@ -425,6 +459,7 @@ INLINE int floatx80_unordered( floatx80 a, floatx80 b STATUS_PARAM)
 int floatx80_compare( floatx80, floatx80 STATUS_PARAM );
 int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
 int floatx80_is_signaling_nan( floatx80 );
+int floatx80_is_nan( floatx80 );
 
 INLINE floatx80 floatx80_abs(floatx80 a)
 {
@@ -436,6 +471,23 @@ INLINE floatx80 floatx80_chs(floatx80 a)
     return -a;
 }
 
+INLINE floatx80 floatx80_is_infinity(floatx80 a)
+{
+    return fpclassify(a) == FP_INFINITE;
+}
+
+INLINE floatx80 floatx80_is_neg(floatx80 a)
+{
+    floatx80u u;
+    u.f = a;
+    return u.i.high >> 15;
+}
+
+INLINE floatx80 floatx80_is_zero(floatx80 a)
+{
+    return fpclassify(a) == FP_ZERO;
+}
+
 INLINE floatx80 floatx80_scalbn(floatx80 a, int n)
 {
     return scalbnl(a, n);