From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Mon, 22 Jul 2019 08:50:09 +0000 (+0100)
Subject: fix div specialcases
X-Git-Tag: ls180-24jan2020~778
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d144527855a050642dcf0644822bf6ec52382893;p=ieee754fpu.git

fix div specialcases
---

diff --git a/src/ieee754/fpdiv/specialcases.py b/src/ieee754/fpdiv/specialcases.py
index 4a73e435..5bbe5c40 100644
--- a/src/ieee754/fpdiv/specialcases.py
+++ b/src/ieee754/fpdiv/specialcases.py
@@ -66,12 +66,12 @@ class FPDIVSpecialCasesMod(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 and b is Inf return NaN
-        with m.Elif(abnan):
+        with m.Elif(abinf):
             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
         with m.Elif(a1.is_inf):
@@ -89,7 +89,7 @@ class FPDIVSpecialCasesMod(Elaboratable):
             m.d.comb += self.o.z.zero(sabx)
             # b is zero return NaN
             with m.If(b1.is_zero):
-                m.d.comb += self.o.z.nan(1)
+                m.d.comb += self.o.z.nan(0)
 
         # if b is zero return Inf
         with m.Elif(b1.is_zero):