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-rw-r--r--sys/alpha/alpha/ieee_float.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/alpha/alpha/ieee_float.c b/sys/alpha/alpha/ieee_float.c
index 390011a..003068b 100644
--- a/sys/alpha/alpha/ieee_float.c
+++ b/sys/alpha/alpha/ieee_float.c
@@ -312,6 +312,9 @@ makefloat(int sign, int exp, u_int64_t frac,
break;
}
+ if (frac == 0)
+ *status |= FPCR_UNF;
+
/*
* Rounding up may take us to TWO if
* fraclo == (TWO - epsilon). Also If fraclo has been
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