From 20fd00f3563930152217351f96ea0ebd49e3a11c Mon Sep 17 00:00:00 2001
From: Jacob Lifshay <programmerjake@gmail.com>
Date: Tue, 16 May 2023 21:51:39 -0700
Subject: [PATCH] add support for setting initial FPSCR in unit tests

---
 src/openpower/test/common.py | 10 ++++++++--
 src/openpower/test/runner.py |  3 ++-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/openpower/test/common.py b/src/openpower/test/common.py
index d9a846d2..e4bded79 100644
--- a/src/openpower/test/common.py
+++ b/src/openpower/test/common.py
@@ -122,6 +122,7 @@ class TestAccumulatorBase:
                  expected=None,
                  stop_at_pc=None,
                  fpregs=None,
+                 initial_fpscr=None,
                  src_loc_at=0):
 
         # name of caller of this function
@@ -138,7 +139,8 @@ class TestAccumulatorBase:
                       stop_at_pc=stop_at_pc,
                       test_file=test_file,
                       subtest_args=self.__subtest_args.copy(),
-                      fpregs=fpregs)
+                      fpregs=fpregs,
+                      initial_fpscr=initial_fpscr)
 
         self.test_data.append(tc)
 
@@ -155,7 +157,8 @@ class TestCase:
                  stop_at_pc=None,
                  test_file=None,
                  subtest_args=None,
-                 fpregs=None):
+                 fpregs=None,
+                 initial_fpscr=None):
 
         self.program = program
         self.name = name
@@ -181,6 +184,9 @@ class TestCase:
         self.stop_at_pc = stop_at_pc # hard-stop address (do not attempt to run)
         self.test_file = test_file
         self.subtest_args = {} if subtest_args is None else dict(subtest_args)
+        if initial_fpscr is None:
+            initial_fpscr = 0
+        self.initial_fpscr = initial_fpscr
 
 
 class ALUHelpers:
diff --git a/src/openpower/test/runner.py b/src/openpower/test/runner.py
index 4068d1ab..656e2b5b 100644
--- a/src/openpower/test/runner.py
+++ b/src/openpower/test/runner.py
@@ -74,7 +74,8 @@ class SimRunner(StateRunner):
                   bigendian=bigendian,
                   initial_svstate=test.svstate,
                   mmu=self.mmu,
-                  fpregfile=test.fpregs)
+                  fpregfile=test.fpregs,
+                  initial_fpscr=test.initial_fpscr)
 
         # run the loop of the instructions on the current test
         index = sim.pc.CIA.value//4
-- 
2.30.2