Add test for popcnt to test_caller.py

[soc.git] / src / soc / decoder / isa / test_caller.py

diff --git a/src/soc/decoder/isa/test_caller.py b/src/soc/decoder/isa/test_caller.py
index 10db874c344b29fef311b3d731c49fd0207f1f25..2c1353614b9299c02c949ac86e6a43dcc6ba0665 100644 (file)
--- a/src/soc/decoder/isa/test_caller.py
+++ b/src/soc/decoder/isa/test_caller.py
@@ -238,6 +238,22 @@ class DecoderTestCase(FHDLTestCase):
             sim = self.run_tst_program(program, initial_regs)
             self.assertEqual(sim.gpr(2), SelectableInt(0x100000001, 64))
 
+    def test_popcnt(self):
+        lst = ["popcntb 2, 1",
+               "popcntw 3, 1",
+               "popcntd 4, 1"
+        ]
+        initial_regs = [0] * 32
+        initial_regs[1] = 0xdeadbeefcafec0de
+        with Program(lst) as program:
+            sim = self.run_tst_program(program, initial_regs)
+            self.assertEqual(sim.gpr(2),
+                             SelectableInt(0x605060704070206, 64))
+            self.assertEqual(sim.gpr(3),
+                             SelectableInt(0x1800000013, 64))
+            self.assertEqual(sim.gpr(4),
+                             SelectableInt(0x2b, 64))
+
         
 
     def test_mtcrf(self):