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Diffstat (limited to 'Example/decoder/decoder.vhdl')
| -rw-r--r-- | Example/decoder/decoder.vhdl | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Example/decoder/decoder.vhdl b/Example/decoder/decoder.vhdl new file mode 100644 index 0000000..e429ec9 --- /dev/null +++ b/Example/decoder/decoder.vhdl @@ -0,0 +1,50 @@ +library ieee; +use ieee.std_logic_1164.all; + +entity decoder is +port ( + p : in std_logic_vector(4 downto 0); + d : out std_logic_vector(31 downto 0) + ); +end decoder; + +architecture behav of decoder is + +begin + +with p select +d<="00000000000000000000000000000001" when "00000", +"00000000000000000000000000000010" when "00001", +"00000000000000000000000000000100" when "00010", +"00000000000000000000000000001000" when "00011", +"00000000000000000000000000010000" when "00100", +"00000000000000000000000000100000" when "00101", +"00000000000000000000000001000000" when "00110", +"00000000000000000000000010000000" when "00111", +"00000000000000000000000100000000" when "01000", +"00000000000000000000001000000000" when "01001", +"00000000000000000000010000000000" when "01010", +"00000000000000000000100000000000" when "01011", +"00000000000000000001000000000000" when "01100", +"00000000000000000010000000000000" when "01101", +"00000000000000000100000000000000" when "01110", +"00000000000000001000000000000000" when "01111", +"00000000000000010000000000000000" when "10000", +"00000000000000100000000000000000" when "10001", +"00000000000001000000000000000000" when "10010", +"00000000000010000000000000000000" when "10011", +"00000000000100000000000000000000" when "10100", +"00000000001000000000000000000000" when "10101", +"00000000010000000000000000000000" when "10110", +"00000000100000000000000000000000" when "10111", +"00000001000000000000000000000000" when "11000", +"00000010000000000000000000000000" when "11001", +"00000100000000000000000000000000" when "11010", +"00001000000000000000000000000000" when "11011", +"00010000000000000000000000000000" when "11100", +"00100000000000000000000000000000" when "11101", +"01000000000000000000000000000000" when "11110", +"10000000000000000000000000000000" when "11111", +"00000000000000000000000000000000" when others; + +end behav; |