FITkitSVN Repository / Prohlížení
Aktuální adresář: FITkit / trunk / apps / games / pexeso / fpga /
symbol_decoder.vhd
1 -- Pexeso - simple pure FPGA game
2 -- Author: Vojtech Mrazek (xmraze06)
3
4 library IEEE;
5 use IEEE.std_logic_1164.ALL;
6 use ieee.std_logic_arith.all;
7 use ieee.std_logic_unsigned.all;
8 use work.vga_controller_cfg.all;
9 use work.clkgen_cfg.all;
10
11 entity symbol_decoder is
12 port (
13 CLK : in std_logic;
14 SYMBOL : in std_logic_vector(3 downto 0);
15
16 ROW : in std_logic_vector(4 downto 0);
17 COL : in std_logic_vector(4 downto 0);
18
19 COLOR : out std_logic_vector(3 downto 0)
20 );
21 end symbol_decoder;
22
23 architecture behv of symbol_decoder is
24 -- type t_val is array((32*32-1) downto 0) of std_logic_vector(2 downto 0);
25 -- type t_mem is array(7 downto 0) of t_val;
26 -- constant rom : t_mem := (
27 -- -- fitkit
28 -- 0 => 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29 -- -- lorry
30 -- 1 => 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31 -- -- building
32 -- 2 => 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41 -- -- windows
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43 -- );
44 --
45 -- -- FIT
46 --constant back : t_val := 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47 constant back : std_logic_vector(32*32-1 downto 0) := "1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111110001111111111111111111111111111100011111111111111111111111111111000111111111110000000000000000000001111111111100000000000000000000011111111111000000000000000000000111111111111111111111111111110001111111111111111111111111111100011111111111111111111111111111000111111111111111111111111111111111111111111111111111111111111111111111111111000000000000000000000111111111110000000000000000000001111111111100000000000000000000011111111111111111111111111111111111111111111111111111111111111111111111111111111111111000111100011111111111111111111110001111000111111111111111111111100011110001111111111111111111111000111100011111111111111111111110001111000111111111110000000000000000000001111111111100000000000000000000011111111111000000000000000000000111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111";
48 -- begin
49 -- process
50 -- variable hodnota : t_val;
51 -- begin
52 -- if SYMBOL(3) = '0' then
53 -- hodnota := rom(conv_integer(SYMBOL(2 downto 0)));
54 -- else
55 -- hodnota := back;
56 -- end if;
57 -- COLOR <= "0" & hodnota(conv_integer(COL & ROW));
58 -- end process;
59
60 begin
61 process
62 begin
63 if SYMBOL(3) = '0' then
64 COLOR <= SYMBOL;
65 else
66 if back(conv_integer(COL & ROW)) = '1' then
67 COLOR <= "1111";
68 else
69 COLOR <= "1010";
70 end if;
71 end if;
72 --COLOR <= "0" & hodnota(conv_integer(COL & ROW));
73 end process;
74
75 end;
Zobrazeno: 793732x Naposledy: 6.6.2023 22:22:35
Dokumenty a zdrojové kódy jsou dostupné pod BSD licencí
© 2006 - 2012 Zdeněk Vašíček, Fakulta informačních technologií VUT Brno