From 2f4337f027ec97dd93642ea2db70873e9192fb3b Mon Sep 17 00:00:00 2001
From: Tristan Gingold
Date: Sun, 7 Dec 2014 11:40:58 +0100
Subject: Add perf02 (performance issue).

---
 testsuite/gna/perf02/quant26bt_pos.vhd | 48 ++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 testsuite/gna/perf02/quant26bt_pos.vhd

(limited to 'testsuite/gna/perf02/quant26bt_pos.vhd')

diff --git a/testsuite/gna/perf02/quant26bt_pos.vhd b/testsuite/gna/perf02/quant26bt_pos.vhd
new file mode 100644
index 0000000..eb87815
--- /dev/null
+++ b/testsuite/gna/perf02/quant26bt_pos.vhd
@@ -0,0 +1,48 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+
+library ieee;
+use ieee.numeric_std.all;
+
+entity quant26bt_pos is
+	port (
+		clk : in  std_logic;
+		ra0_data : out std_logic_vector(31 downto 0);
+		ra0_addr : in  std_logic_vector(4 downto 0)
+	);
+end quant26bt_pos;
+architecture augh of quant26bt_pos is
+
+	-- Embedded RAM
+
+	type ram_type is array (0 to 31) of std_logic_vector(31 downto 0);
+	signal ram : ram_type := ("00000000000000000000000000111101", "00000000000000000000000000111100", "00000000000000000000000000111011", "00000000000000000000000000111010", "00000000000000000000000000111001", "00000000000000000000000000111000", "00000000000000000000000000110111", "00000000000000000000000000110110", "00000000000000000000000000110101", "00000000000000000000000000110100", "00000000000000000000000000110011", "00000000000000000000000000110010", "00000000000000000000000000110001", "00000000000000000000000000110000", "00000000000000000000000000101111", "00000000000000000000000000101110", "00000000000000000000000000101101", "00000000000000000000000000101100", "00000000000000000000000000101011", "00000000000000000000000000101010", "00000000000000000000000000101001", "00000000000000000000000000101000", "00000000000000000000000000100111", "00000000000000000000000000100110", "00000000000000000000000000100101", "00000000000000000000000000100100", "00000000000000000000000000100011", "00000000000000000000000000100010", "00000000000000000000000000100001", "00000000000000000000000000100000", "00000000000000000000000000100000", "00000000000000000000000000000000");
+
+
+	-- 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;
-- 
cgit