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+library ieee;
+use ieee.std_logic_1164.all;
+
+
+library ieee;
+use ieee.numeric_std.all;
+
+entity decis_levl 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 decis_levl;
+architecture augh of decis_levl is
+
+ -- Embedded RAM
+
+ type ram_type is array (0 to 31) of std_logic_vector(31 downto 0);
+ signal ram : ram_type := ("00000000000000000000000100011000", "00000000000000000000001001000000", "00000000000000000000001101110000", "00000000000000000000010010110000", "00000000000000000000010111110000", "00000000000000000000011101001000", "00000000000000000000100010100000", "00000000000000000000101000011000", "00000000000000000000101110010000", "00000000000000000000110100110000", "00000000000000000000111011001000", "00000000000000000001000010010000", "00000000000000000001001001011000", "00000000000000000001010001010000", "00000000000000000001011001010000", "00000000000000000001100010010000", "00000000000000000001101011010000", "00000000000000000001110101100000", "00000000000000000001111111111000", "00000000000000000010001100001000", "00000000000000000010011000011000", "00000000000000000010100111011000", "00000000000000000010110110010000", "00000000000000000011001001100000", "00000000000000000011011100101000", "00000000000000000011110111100000", "00000000000000000100010010011000", "00000000000000000100111111101000", "00000000000000000101101100111000", "00000000000000000111111111111111", "00000000000000000000000000000000", "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;