[Qemu-devel] [PATCH v1] softfloat: add float128_is_{normal, denormal}

[David Hildenbrand]

Needed on s390x, to test for the data class of a number. So it will
gain soon a user.

Signed-off-by: David Hildenbrand <address@hidden>
---
 include/fpu/softfloat.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index 38a5e99cf3..10c31557b4 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -940,6 +940,16 @@ static inline int float128_is_zero_or_denormal(float128 a)
     return (a.high & 0x7fff000000000000LL) == 0;
 }
 
+static inline bool float128_is_normal(float128 a)
+{
+    return ((a.high + (1ULL << 47)) & -1ULL >> 1) >= 1ULL << 48;
+}
+
+static inline bool float128_is_denormal(float128 a)
+{
+    return float128_is_zero_or_denormal(a) && !float128_is_zero(a);
+}
+
 static inline int float128_is_any_nan(float128 a)
 {
     return ((a.high >> 48) & 0x7fff) == 0x7fff &&
-- 
2.17.2