-- cosine rom -- library IEEE; use IEEE.std_logic_1164.all; use IEEE.std_logic_arith.all; entity COSROM is port ( data : out std_logic_vector(7 downto 0); addr : in std_logic_vector(9 downto 0)); end COSROM; architecture RTL of COSROM is begin process (addr) variable iaddr : integer; type rom_type is array(0 to 1023) of std_logic_vector(7 downto 0); constant rom_table : rom_type := ( "01111111","01111111","01111111","01111111","01111111", "01111111","01111111","01111111","01111111","01111111", "01111111","01111111","01111111","01111111","01111111", "01111111","01111111","01111111","01111111","01111111", "01111111","01111111","01111111","01111111","01111111", "01111110","01111110","01111110","01111110","01111110", "01111110","01111110","01111110","01111101","01111101", "01111101","01111101","01111101","01111101","01111100", "01111100","01111100","01111100","01111100","01111011", "01111011","01111011","01111011","01111010","01111010", "01111010","01111010","01111010","01111001","01111001", "01111001","01111001","01111000","01111000","01111000", "01110111","01110111","01110111","01110111","01110110", "01110110","01110110","01110101","01110101","01110101", "01110100","01110100","01110100","01110011","01110011", "01110011","01110010","01110010","01110010","01110001", "01110001","01110001","01110000","01110000","01101111", "01101111","01101111","01101110","01101110","01101101", "01101101","01101101","01101100","01101100","01101011", "01101011","01101010","01101010","01101010","01101001", "01101001","01101000","01101000","01100111","01100111", "01100110","01100110","01100101","01100101","01100100", "01100100","01100011","01100011","01100010","01100010", "01100001","01100001","01100000","01100000","01011111", "01011111","01011110","01011110","01011101","01011101", "01011100","01011100","01011011","01011011","01011010", "01011001","01011001","01011000","01011000","01010111", "01010111","01010110","01010101","01010101","01010100", "01010100","01010011","01010010","01010010","01010001", "01010001","01010000","01001111","01001111","01001110", "01001110","01001101","01001100","01001100","01001011", "01001010","01001010","01001001","01001000","01001000", "01000111","01000111","01000110","01000101","01000101", "01000100","01000011","01000011","01000010","01000001", "01000001","01000000","00111111","00111110","00111110", "00111101","00111100","00111100","00111011","00111010", "00111010","00111001","00111000","00111000","00110111", "00110110","00110101","00110101","00110100","00110011", "00110011","00110010","00110001","00110000","00110000", "00101111","00101110","00101101","00101101","00101100", "00101011","00101010","00101010","00101001","00101000", "00100111","00100111","00100110","00100101","00100100", "00100100","00100011","00100010","00100001","00100001", "00100000","00011111","00011110","00011110","00011101", "00011100","00011011","00011011","00011010","00011001", "00011000","00011000","00010111","00010110","00010101", "00010100","00010100","00010011","00010010","00010001", "00010001","00010000","00001111","00001110","00001101", "00001101","00001100","00001011","00001010","00001010", "00001001","00001000","00000111","00000110","00000110", "00000101","00000100","00000011","00000010","00000010", "00000001","00000000","11111111","11111111","11111110", "11111101","11111100","11111011","11111011","11111010", "11111001","11111000","11110111","11110111","11110110", "11110101","11110100","11110100","11110011","11110010", "11110001","11110000","11110000","11101111","11101110", "11101101","11101101","11101100","11101011","11101010", "11101001","11101001","11101000","11100111","11100110", "11100110","11100101","11100100","11100011","11100011", "11100010","11100001","11100000","11011111","11011111", "11011110","11011101","11011100","11011100","11011011", "11011010","11011001","11011001","11011000","11010111", "11010110","11010110","11010101","11010100","11010100", "11010011","11010010","11010001","11010001","11010000", "11001111","11001110","11001110","11001101","11001100", "11001100","11001011","11001010","11001001","11001001", "11001000","11000111","11000111","11000110","11000101", "11000100","11000100","11000011","11000010","11000010", "11000001","11000000","11000000","10111111","10111110", "10111110","10111101","10111100","10111100","10111011", "10111010","10111010","10111001","10111000","10111000", "10110111","10110110","10110110","10110101","10110100", "10110100","10110011","10110011","10110010","10110001", "10110001","10110000","10110000","10101111","10101110", "10101110","10101101","10101101","10101100","10101011", "10101011","10101010","10101010","10101001","10101000", "10101000","10100111","10100111","10100110","10100110", "10100101","10100100","10100100","10100011","10100011", "10100010","10100010","10100001","10100001","10100000", "10100000","10011111","10011111","10011110","10011110", "10011101","10011101","10011100","10011100","10011011", "10011011","10011010","10011010","10011001","10011001", "10011000","10011000","10010111","10010111","10010111", "10010110","10010110","10010101","10010101","10010100", "10010100","10010100","10010011","10010011","10010010", "10010010","10010001","10010001","10010001","10010000", "10010000","10010000","10001111","10001111","10001110", "10001110","10001110","10001101","10001101","10001101", "10001100","10001100","10001100","10001011","10001011", "10001011","10001010","10001010","10001010","10001010", "10001001","10001001","10001001","10001000","10001000", "10001000","10001000","10000111","10000111","10000111", "10000111","10000110","10000110","10000110","10000110", "10000101","10000101","10000101","10000101","10000100", "10000100","10000100","10000100","10000100","10000100", 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"10000101","10000110","10000110","10000110","10000110", "10000111","10000111","10000111","10000111","10001000", "10001000","10001000","10001000","10001001","10001001", "10001001","10001010","10001010","10001010","10001011", "10001011","10001011","10001100","10001100","10001100", "10001101","10001101","10001101","10001110","10001110", "10001110","10001111","10001111","10001111","10010000", "10010000","10010001","10010001","10010001","10010010", "10010010","10010010","10010011","10010011","10010100", "10010100","10010101","10010101","10010101","10010110", "10010110","10010111","10010111","10011000","10011000", "10011001","10011001","10011010","10011010","10011010", "10011011","10011011","10011100","10011100","10011101", "10011101","10011110","10011110","10011111","10011111", "10100000","10100000","10100001","10100010","10100010", "10100011","10100011","10100100","10100100","10100101", "10100101","10100110","10100110","10100111","10101000", "10101000","10101001","10101001","10101010","10101010", "10101011","10101100","10101100","10101101","10101101", "10101110","10101111","10101111","10110000","10110000", "10110001","10110010","10110010","10110011","10110100", "10110100","10110101","10110101","10110110","10110111", "10110111","10111000","10111001","10111001","10111010", "10111011","10111011","10111100","10111101","10111101", "10111110","10111111","10111111","11000000","11000001", "11000001","11000010","11000011","11000011","11000100", "11000101","11000110","11000110","11000111","11001000", "11001000","11001001","11001010","11001010","11001011", "11001100","11001101","11001101","11001110","11001111", "11001111","11010000","11010001","11010010","11010010", "11010011","11010100","11010101","11010101","11010110", "11010111","11011000","11011000","11011001","11011010", "11011011","11011011","11011100","11011101","11011110", "11011110","11011111","11100000","11100001","11100001", "11100010","11100011","11100100","11100100","11100101", "11100110","11100111","11101000","11101000","11101001", "11101010","11101011","11101011","11101100","11101101", "11101110","11101110","11101111","11110000","11110001", "11110010","11110010","11110011","11110100","11110101", "11110110","11110110","11110111","11111000","11111001", "11111001","11111010","11111011","11111100","11111101", "11111101","11111110","11111111","00000000","00000000", "00000001","00000010","00000011","00000100","00000100", "00000101","00000110","00000111","00001000","00001000", "00001001","00001010","00001011","00001011","00001100", "00001101","00001110","00001111","00001111","00010000", "00010001","00010010","00010010","00010011","00010100", "00010101","00010110","00010110","00010111","00011000", "00011001","00011001","00011010","00011011","00011100", "00011100","00011101","00011110","00011111","00100000", "00100000","00100001","00100010","00100011","00100011", "00100100","00100101","00100110","00100110","00100111", "00101000","00101001","00101001","00101010","00101011", "00101100","00101100","00101101","00101110","00101110", "00101111","00110000","00110001","00110001","00110010", "00110011","00110100","00110100","00110101","00110110", "00110110","00110111","00111000","00111001","00111001", "00111010","00111011","00111011","00111100","00111101", "00111101","00111110","00111111","00111111","01000000", "01000001","01000010","01000010","01000011","01000100", "01000100","01000101","01000110","01000110","01000111", "01000111","01001000","01001001","01001001","01001010", "01001011","01001011","01001100","01001101","01001101", "01001110","01001110","01001111","01010000","01010000", "01010001","01010010","01010010","01010011","01010011", "01010100","01010101","01010101","01010110","01010110", "01010111","01010111","01011000","01011001","01011001", "01011010","01011010","01011011","01011011","01011100", "01011100","01011101","01011110","01011110","01011111", "01011111","01100000","01100000","01100001","01100001", "01100010","01100010","01100011","01100011","01100100", "01100100","01100101","01100101","01100110","01100110", "01100111","01100111","01101000","01101000","01101000", "01101001","01101001","01101010","01101010","01101011", "01101011","01101100","01101100","01101100","01101101", "01101101","01101110","01101110","01101110","01101111", "01101111","01110000","01110000","01110000","01110001", "01110001","01110001","01110010","01110010","01110011", "01110011","01110011","01110100","01110100","01110100", "01110101","01110101","01110101","01110101","01110110", "01110110","01110110","01110111","01110111","01110111", "01111000","01111000","01111000","01111000","01111001", "01111001","01111001","01111001","01111010","01111010", "01111010","01111010","01111011","01111011","01111011", "01111011","01111011","01111100","01111100","01111100", "01111100","01111100","01111101","01111101","01111101", "01111101","01111101","01111101","01111110","01111110", "01111110","01111110","01111110","01111110","01111110", "01111111","01111111","01111111","01111111","01111111", "01111111","01111111","01111111","01111111","01111111", "01111111","01111111","01111111","01111111","01111111", "01111111","01111111","01111111","01111111","01111111", "01111111","01111111","01111111","01111111" ); begin iaddr := conv_integer(unsigned(addr)); data <= rom_table(iaddr); end process; end RTL;