1 files changed, 51 insertions, 0 deletions
diff --git a/testsuite/synth/mem02/tb_dpram5.vhdl b/testsuite/synth/mem02/tb_dpram5.vhdl
new file mode 100644
index 000000000..c12125831
--- /dev/null
+++ b/testsuite/synth/mem02/tb_dpram5.vhdl
@@ -0,0 +1,51 @@
+entity tb_dpram5 is
+end;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_dpram5 is
+  signal raddr : std_logic_vector(3 downto 0);
+  signal rdat : std_logic_vector(7 downto 0);
+  signal waddr : std_logic_vector(3 downto 0);
+  signal wdat : std_logic_vector(7 downto 0);
+  signal rclk, wclk : std_logic;
+begin
+  dut: entity work.dpram5
+    port map (raddr => raddr, rdat => rdat, waddr => waddr, wdat => wdat,
+              rclk => rclk, wclk => wclk);
+
+  process
+    procedure rpulse is
+    begin
+      rclk <= '0';
+      wait for 1 ns;
+      rclk <= '1';
+      wait for 1 ns;
+    end rpulse;
+
+    procedure wpulse is
+    begin
+      wclk <= '0';
+      wait for 1 ns;
+      wclk <= '1';
+      wait for 1 ns;
+    end wpulse;
+  begin
+    raddr <= "0000";
+    waddr <= "0001";
+    wdat <= x"01";
+    wpulse;
+
+    raddr <= "0001";
+    rpulse;
+    assert rdat = x"01" severity failure;
+
+    waddr <= "0010";
+    wdat <= x"02";
+    wpulse;
+    assert rdat = x"01" severity failure;
+
+    wait;
+  end process;
+end behav;