Add perf02 (performance issue).

1 files changed, 48 insertions, 0 deletions

diff --git a/testsuite/gna/perf02/qq2_code2_table.vhd b/testsuite/gna/perf02/qq2_code2_table.vhd
new file mode 100644
index 0000000..3ddfb45
--- /dev/null
+++ b/testsuite/gna/perf02/qq2_code2_table.vhd
@@ -0,0 +1,48 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+
+library ieee;
+use ieee.numeric_std.all;
+
+entity qq2_code2_table is
+	port (
+		clk : in  std_logic;
+		ra0_data : out std_logic_vector(31 downto 0);
+		ra0_addr : in  std_logic_vector(1 downto 0)
+	);
+end qq2_code2_table;
+architecture augh of qq2_code2_table is
+
+	-- Embedded RAM
+
+	type ram_type is array (0 to 3) of std_logic_vector(31 downto 0);
+	signal ram : ram_type := ("11111111111111111110001100010000", "11111111111111111111100110110000", "00000000000000000001110011110000", "00000000000000000000011001010000");
+
+
+	-- Little utility functions to make VHDL syntactically correct
+	--   with the syntax to_integer(unsigned(vector)) when 'vector' is a std_logic.
+	--   This happens when accessing arrays with <= 2 cells, for example.
+
+	function to_integer(B: std_logic) return integer is
+		variable V: std_logic_vector(0 to 0);
+	begin
+		V(0) := B;
+		return to_integer(unsigned(V));
+	end;
+
+	function to_integer(V: std_logic_vector) return integer is
+	begin
+		return to_integer(unsigned(V));
+	end;
+
+begin
+
+	-- The component is a ROM.
+	-- There is no Write side.
+
+	-- The Read side (the outputs)
+
+	ra0_data <= ram( to_integer(ra0_addr) );
+
+end architecture;