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library ieee;
use ieee.std_logic_1164.all;
library ieee;
use ieee.numeric_std.all;
entity ilb_table 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 ilb_table;
architecture augh of ilb_table is
-- Embedded RAM
type ram_type is array (0 to 31) of std_logic_vector(31 downto 0);
signal ram : ram_type := ("00000000000000000000100000000000", "00000000000000000000100000101101", "00000000000000000000100001011011", "00000000000000000000100010001010", "00000000000000000000100010111001", "00000000000000000000100011101010", "00000000000000000000100100011100", "00000000000000000000100101001111", "00000000000000000000100110000011", "00000000000000000000100110111001", "00000000000000000000100111101111", "00000000000000000000101000100111", "00000000000000000000101001100000", "00000000000000000000101010011010", "00000000000000000000101011010110", "00000000000000000000101100010010", "00000000000000000000101101010000", "00000000000000000000101110010000", "00000000000000000000101111010001", "00000000000000000000110000010011", "00000000000000000000110001010110", "00000000000000000000110010011100", "00000000000000000000110011100010", "00000000000000000000110100101011", "00000000000000000000110101110100", "00000000000000000000110111000000", "00000000000000000000111000001101", "00000000000000000000111001011100", "00000000000000000000111010101100", "00000000000000000000111011111110", "00000000000000000000111101010010", "00000000000000000000111110101000");
-- 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;
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