add extra (dummy) mul operation, 0*0

[openpower-isa.git] / src / openpower / decoder / isa / test_caller_fp.py

diff --git a/src/openpower/decoder/isa/test_caller_fp.py b/src/openpower/decoder/isa/test_caller_fp.py
index 004c265e22b202a4cb1159e02e94b36859ebb549..3d8fdfa9e1188f918a63df184ba5b02443617683 100644 (file)
--- a/src/openpower/decoder/isa/test_caller_fp.py
+++ b/src/openpower/decoder/isa/test_caller_fp.py
@@ -178,6 +178,24 @@ class DecoderTestCase(FHDLTestCase):
             self.assertEqual(sim.fpr(2), SelectableInt(0xC02399999999999A, 64))
             self.assertEqual(sim.fpr(3), SelectableInt(0xC006666666666668, 64))
 
+    def test_fp_muls(self):
+        """>>> lst = ["fmuls 3, 1, 2",
+                     ]
+        """
+        lst = ["fmuls 3, 1, 2", # 7.0 * -9.8 = -68.6
+               "fmuls 29,12,8", # test
+                     ]
+
+        fprs = [0] * 32
+        fprs[1] = 0x401C000000000000  # 7.0
+        fprs[2] = 0xC02399999999999A  # -9.8
+
+        with Program(lst, bigendian=False) as program:
+            sim = self.run_tst_program(program, initial_fprs=fprs)
+            self.assertEqual(sim.fpr(1), SelectableInt(0x401C000000000000, 64))
+            self.assertEqual(sim.fpr(2), SelectableInt(0xC02399999999999A, 64))
+            self.assertEqual(sim.fpr(3), SelectableInt(0xc051266640000000, 64))
+
     def test_fp_mul(self):
         """>>> lst = ["fmul 3, 1, 2",
                      ]