From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sat, 25 Jul 2020 15:18:16 +0000 (+0100)
Subject: add regression test 8, DivPipeCore producing spurious result
X-Git-Tag: semi_working_ecp5~545
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b8d4731c4516090a7ccce4b65eaf18bd784f07b1;p=soc.git

add regression test 8, DivPipeCore producing spurious result
---

diff --git a/src/soc/fu/div/test/test_pipe_caller.py b/src/soc/fu/div/test/test_pipe_caller.py
index 9bb54e23..919c1859 100644
--- a/src/soc/fu/div/test/test_pipe_caller.py
+++ b/src/soc/fu/div/test/test_pipe_caller.py
@@ -103,6 +103,14 @@ class DivTestCases(unittest.TestCase):
         with Program(lst, bigendian) as prog:
             self.run_test_program(prog, initial_regs)
 
+    def test_8_regression(self):
+        lst = ["divwu. 3, 1, 2"]
+        initial_regs = [0] * 32
+        initial_regs[1] = 18
+        initial_regs[2] = 3
+        with Program(lst, bigendian) as prog:
+            self.run_test_program(prog, initial_regs)
+
     def test_divw_by_zero_1(self):
         lst = ["divw. 3, 1, 2"]
         initial_regs = [0] * 32