From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sun, 16 Jun 2019 12:18:28 +0000 (+0100)
Subject: fpmul specialcase, nan x nan returns 0 nan
X-Git-Tag: ls180-24jan2020~983
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=daba4a167b8134bdd2ebf709d3458e09fd99ca49;p=ieee754fpu.git

fpmul specialcase, nan x nan returns 0 nan
---

diff --git a/src/ieee754/fpmul/specialcases.py b/src/ieee754/fpmul/specialcases.py
index b7a59b37..0149bb3b 100644
--- a/src/ieee754/fpmul/specialcases.py
+++ b/src/ieee754/fpmul/specialcases.py
@@ -67,7 +67,7 @@ class FPMulSpecialCasesMod(Elaboratable):
         # if a is NaN or b is NaN return NaN
         with m.If(abnan):
             m.d.comb += self.o.out_do_z.eq(1)
-            m.d.comb += self.o.z.nan(1)
+            m.d.comb += self.o.z.nan(0)
 
         # if a is inf return inf (or NaN)
         with m.Elif(a1.is_inf):