From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Thu, 27 Aug 2020 19:52:58 +0000 (+0100)
Subject: xer so is not being passed through to CR0
X-Git-Tag: semi_working_ecp5~250^2~1
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f3b4db25993b9be457c0c0b87d2bfea78a83a247;p=soc.git

xer so is not being passed through to CR0
---

diff --git a/src/soc/fu/alu/test/test_pipe_caller.py b/src/soc/fu/alu/test/test_pipe_caller.py
index 9434e504..60a1343f 100644
--- a/src/soc/fu/alu/test/test_pipe_caller.py
+++ b/src/soc/fu/alu/test/test_pipe_caller.py
@@ -129,6 +129,20 @@ class ALUTestCase(TestAccumulatorBase):
                 self.add_case(Program(lst, bigendian),
                               initial_regs, initial_sprs)
 
+    def case_addme_ca_so_3(self):
+        """bug where SO does not get passed through to CR0
+        """
+        lst = ["addme. 6, 16"]
+        initial_regs = [0] * 32
+        initial_regs[16] = 0x7ffffffff
+        initial_sprs = {}
+        xer = SelectableInt(0, 64)
+        xer[XER_bits['CA']] = 1
+        xer[XER_bits['SO']] = 1
+        initial_sprs[special_sprs['XER']] = xer
+        self.add_case(Program(lst, bigendian),
+                      initial_regs, initial_sprs)
+
     def case_addze(self):
         insns = ["addze", "addze.", "addzeo", "addzeo."]
         for choice in insns: