1 files changed, 51 insertions, 0 deletions
diff --git a/testsuite/synth/issue2073/tb_ivoice2.vhdl b/testsuite/synth/issue2073/tb_ivoice2.vhdl
new file mode 100644
index 000000000..133a3ca2a
--- /dev/null
+++ b/testsuite/synth/issue2073/tb_ivoice2.vhdl
@@ -0,0 +1,51 @@
+entity tb_ivoice2 is
+end tb_ivoice2;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_ivoice2 is
+  signal romd : std_logic_vector (15 downto 0) := b"1010_0100_0100_0011";
+  signal pc : natural range 0 to 7;
+  signal res : std_logic_vector (7 downto 0);
+begin
+  dut: entity work.ivoice2
+    port map (pc, romd, res);
+
+  process
+  begin
+    pc <= 0;
+    wait for 1 ns;
+    assert res = b"0100_0011" severity failure;
+
+    pc <= 1;
+    wait for 1 ns;
+    assert res = b"0_0100_001" severity failure;
+
+    pc <= 2;
+    wait for 1 ns;
+    assert res = b"00_0100_00" severity failure;
+
+    pc <= 3;
+    wait for 1 ns;
+    assert res = b"100_0100_0" severity failure;
+
+    pc <= 4;
+    wait for 1 ns;
+    assert res = b"0100_0100" severity failure;
+
+    pc <= 5;
+    wait for 1 ns;
+    assert res = b"0_0100_010" severity failure;
+
+    pc <= 6;
+    wait for 1 ns;
+    assert res = b"10_0100_01" severity failure;
+
+    pc <= 7;
+    wait for 1 ns;
+    assert res = b"010_0100_0" severity failure;
+
+    wait;
+  end process;
+end behav;