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authorRahul P2019-11-19 12:32:39 +0530
committerGitHub2019-11-19 12:32:39 +0530
commita6c0b36fcaba6c1f2d366432b2386122674b4782 (patch)
tree18a02155e45110fd6419139e48f6d9b277ab9870 /Example/decoder/decoder.vhdl
parent2fe70dd26008b0f4920928d592290614bf47ce5d (diff)
parent6e12269c0681dcfb0d1ec927670fb9d69464af9c (diff)
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Merge pull request #29 from rahulp13/master
Updated nghdl
Diffstat (limited to 'Example/decoder/decoder.vhdl')
-rw-r--r--Example/decoder/decoder.vhdl50
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;