From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Mon, 18 Feb 2019 12:08:55 +0000 (+0000)
Subject: test case fail, 2 numbers exceeded -INF but +ve INF was returned
X-Git-Tag: ls180-24jan2020~1911
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e41ed2689503aece121121c78171f696294bdd37;p=ieee754fpu.git

test case fail, 2 numbers exceeded -INF but +ve INF was returned
---

diff --git a/src/add/fpbase.py b/src/add/fpbase.py
index e18df3a5..2d2fc29d 100644
--- a/src/add/fpbase.py
+++ b/src/add/fpbase.py
@@ -319,7 +319,7 @@ class FPBase:
         m.next = next_state
         # if overflow occurs, return inf
         with m.If(z.is_overflowed()):
-            m.d.sync += z.inf(0)
+            m.d.sync += z.inf(z.s)
         with m.Else():
             m.d.sync += z.create(z.s, z.e, z.m)
 
diff --git a/src/add/test_add.py b/src/add/test_add.py
index 9a8ebe97..8e568526 100644
--- a/src/add/test_add.py
+++ b/src/add/test_add.py
@@ -120,6 +120,7 @@ def run_test(dut, stimulus_a, stimulus_b):
             sys.exit(0)
 
 def testbench(dut):
+    yield from check_case(dut, 0xfe34f995, 0xff5d59ad, 0xff800000)
     yield from check_case(dut, 0x82471f51, 0x243985f, 0x801c3790)
     yield from check_case(dut, 0, 0, 0)
     yield from check_case(dut, 0x40000000, 0xc0000000, 0x00000000)