From 4411f9c019f8f41baeacd39be01af9f961df4e4e Mon Sep 17 00:00:00 2001
From: Veikka Tuominen <git@vexu.eu>
Date: Thu, 20 Jan 2022 10:29:24 +0200
Subject: add behavior tests for f80

---
 src/stage1/softfloat.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/stage1/softfloat.hpp')

diff --git a/src/stage1/softfloat.hpp b/src/stage1/softfloat.hpp
index ec0315d684..a0d270d55f 100644
--- a/src/stage1/softfloat.hpp
+++ b/src/stage1/softfloat.hpp
@@ -57,7 +57,7 @@ static inline bool zig_f128_isNaN(float128_t *aPtr) {
 }
 
 static inline bool zig_extF80_isNaN(extFloat80_t *aPtr) {
-    return aPtr->signExp & 0x7FFF && aPtr->signif;
+    return (aPtr->signExp & 0x7FFF) == 0x7FFF && aPtr->signif & UINT64_C(0x7FFFFFFFFFFFFFFF);
 }
 
 #endif
-- 
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