Add a few test cases with zero_a set, in combination with imm_ok

diff --git a/src/soc/experiment/compalu_multi.py b/src/soc/experiment/compalu_multi.py
index 23652c4538f21a71e2cdefa3d15410b319a23fb3..d2952acc472c6e9ff6eece14353b887e9eec2efb 100644 (file)
--- a/src/soc/experiment/compalu_multi.py
+++ b/src/soc/experiment/compalu_multi.py
@@ -389,6 +389,13 @@ def scoreboard_sim(dut):
     result = yield from op_sim(dut, 5, 2, InternalOp.OP_ADD, inv_a=1)
     assert result == 65532
 
+    result = yield from op_sim(dut, 5, 2, InternalOp.OP_ADD, zero_a=1,
+                                    imm=8, imm_ok=1)
+    assert result == 8
+
+    result = yield from op_sim(dut, 5, 2, InternalOp.OP_ADD, zero_a=1)
+    assert result == 2
+
 
 def test_compunit():
     from alu_hier import ALU