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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 9434f6aedfaded54ade15934479c95b9525da13f..3d8fdfa9e1188f918a63df184ba5b02443617683 100644 (file)
--- a/src/openpower/decoder/isa/test_caller_fp.py
+++ b/src/openpower/decoder/isa/test_caller_fp.py
@@ -22,7 +22,7 @@ class DecoderTestCase(FHDLTestCase):
         for i in range(32):
             self.assertEqual(sim.fpr(i), SelectableInt(expected_fpr[i], 64))
 
-    def tst_fpload(self):
+    def test_fpload(self):
         """>>> lst = ["lfsx 1, 0, 0",
                      ]
         """
@@ -38,7 +38,7 @@ class DecoderTestCase(FHDLTestCase):
             print("FPR 1", sim.fpr(1))
             self.assertEqual(sim.fpr(1), SelectableInt(0x4040266660000000, 64))
 
-    def tst_fp_single_ldst(self):
+    def test_fp_single_ldst(self):
         """>>> lst = ["lfsx 1, 1, 0",   # load fp 1 from mem location 0
                       "stfsu 1, 16(1)", # store fp 1 into mem 0x10, update RA
                       "lfsu 2, 0(1)",   # re-load from UPDATED r1
@@ -79,6 +79,160 @@ class DecoderTestCase(FHDLTestCase):
             self.assertEqual(sim.fpr(1), SelectableInt(0x4040266660000000, 64))
             self.assertEqual(sim.fpr(2), SelectableInt(0x4040266660000000, 64))
 
+    def test_fp_neg(self):
+        """>>> lst = ["fneg 1, 2",
+                     ]
+        """
+        lst = ["fneg 1, 2",
+                     ]
+
+        fprs = [0] * 32
+        fprs[2] = 0x4040266660000000
+
+        with Program(lst, bigendian=False) as program:
+            sim = self.run_tst_program(program, initial_fprs=fprs)
+            print("FPR 1", sim.fpr(1))
+            print("FPR 2", sim.fpr(2))
+            self.assertEqual(sim.fpr(1), SelectableInt(0xC040266660000000, 64))
+            self.assertEqual(sim.fpr(2), SelectableInt(0x4040266660000000, 64))
+
+    def test_fp_abs(self):
+        """>>> lst = ["fabs 3, 1",
+                      "fabs 4, 2",
+                      "fnabs 5, 1",
+                      "fnabs 6, 2",
+                     ]
+        """
+        lst = ["fabs 3, 1",
+               "fabs 4, 2",
+               "fnabs 5, 1",
+               "fnabs 6, 2",
+                     ]
+
+        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(0x4040266660000000, 64))
+            self.assertEqual(sim.fpr(4), SelectableInt(0x4040266660000000, 64))
+            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):