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 3fff1dfb62eeb4979cce6c8d760bf0b550f87e6e..3d8fdfa9e1188f918a63df184ba5b02443617683 100644 (file)
--- a/src/openpower/decoder/isa/test_caller_fp.py
+++ b/src/openpower/decoder/isa/test_caller_fp.py
@@ -79,8 +79,8 @@ class DecoderTestCase(FHDLTestCase):
             self.assertEqual(sim.fpr(1), SelectableInt(0x4040266660000000, 64))
             self.assertEqual(sim.fpr(2), SelectableInt(0x4040266660000000, 64))
 
-    def test_fp_mv(self):
-        """>>> lst = ["fmr 1, 2",
+    def test_fp_neg(self):
+        """>>> lst = ["fneg 1, 2",
                      ]
         """
         lst = ["fneg 1, 2",
@@ -122,6 +122,117 @@ class DecoderTestCase(FHDLTestCase):
             self.assertEqual(sim.fpr(5), SelectableInt(0xC040266660000000, 64))
             self.assertEqual(sim.fpr(6), SelectableInt(0xC040266660000000, 64))
 
+    def test_fp_sgn(self):
+        """>>> lst = ["fcpsgn 3, 1, 2",
+                      "fcpsgn 4, 2, 1",
+                     ]
+        """
+        lst = ["fcpsgn 3, 1, 2",
+               "fcpsgn 4, 2, 1",
+                     ]
+
+        fprs = [0] * 32
+        fprs[1] = 0xC040266660000001 # 1 in LSB, 1 in MSB
+        fprs[2] = 0x4040266660000000 # 0 in LSB, 0 in MSB
+
+        with Program(lst, bigendian=False) as program:
+            sim = self.run_tst_program(program, initial_fprs=fprs)
+            self.assertEqual(sim.fpr(1), SelectableInt(0xC040266660000001, 64))
+            self.assertEqual(sim.fpr(2), SelectableInt(0x4040266660000000, 64))
+            # 1 in MSB comes from reg 1, 0 in LSB comes from reg 2
+            self.assertEqual(sim.fpr(3), SelectableInt(0xC040266660000000, 64))
+            # 0 in MSB comes from reg 2, 1 in LSB comes from reg 1
+            self.assertEqual(sim.fpr(4), SelectableInt(0x4040266660000001, 64))
+
+    def test_fp_adds(self):
+        """>>> lst = ["fadds 3, 1, 2",
+                     ]
+        """
+        lst = ["fadds 3, 1, 2", # -32.3 + 32.3 = 0
+                     ]
+
+        fprs = [0] * 32
+        fprs[1] = 0xC040266660000000
+        fprs[2] = 0x4040266660000000
+
+        with Program(lst, bigendian=False) as program:
+            sim = self.run_tst_program(program, initial_fprs=fprs)
+            self.assertEqual(sim.fpr(1), SelectableInt(0xC040266660000000, 64))
+            self.assertEqual(sim.fpr(2), SelectableInt(0x4040266660000000, 64))
+            self.assertEqual(sim.fpr(3), SelectableInt(0, 64))
+
+    def test_fp_add(self):
+        """>>> lst = ["fadd 3, 1, 2",
+                     ]
+        """
+        lst = ["fadd 3, 1, 2", # 7.0 + -9.8 = -2.8
+                     ]
+
+        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(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",
+                     ]
+        """
+        lst = ["fmul 3, 1, 2", # 7.0 * -9.8 = -68.6
+                     ]
+
+        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(0xC051266666666667, 64))
+
+    def test_fp_fcfids(self):
+        """>>> lst = ["fcfids 1, 2",
+               lst = ["fcfids 3, 4",
+                     ]
+        """
+        lst = ["fcfids 1, 2",
+               "fcfids 3, 4",
+                     ]
+
+        fprs = [0] * 32
+        fprs[2] = 7
+        fprs[4] = -32
+
+        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(7, 64))
+            self.assertEqual(sim.fpr(3), SelectableInt(0xC040000000000000, 64))
+            self.assertEqual(sim.fpr(4), SelectableInt(-32, 64))
+
     def run_tst_program(self, prog, initial_regs=None,
                               initial_mem=None,
                               initial_fprs=None):