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Diffstat (limited to 'Example/full_adder/full_adder_structural.vhdl')
-rw-r--r-- | Example/full_adder/full_adder_structural.vhdl | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/Example/full_adder/full_adder_structural.vhdl b/Example/full_adder/full_adder_structural.vhdl deleted file mode 100644 index eb06a3d..0000000 --- a/Example/full_adder/full_adder_structural.vhdl +++ /dev/null @@ -1,87 +0,0 @@ -library ieee; -use ieee.std_logic_1164.all; - -entity full_adder_structural is -port(a: in std_logic; - b: in std_logic; - cin: in std_logic; - sum: out std_logic; - carry: out std_logic); -end full_adder_structural; - -library ieee; -use ieee.std_logic_1164.all; - -entity andgate is -port(a: in std_logic; - b: in std_logic; - z: out std_logic); -end andgate; - -architecture e1 of andgate is -begin -z <= a and b; -end e1; - -library ieee; -use ieee.std_logic_1164.all; - -entity xorgate is -port(a: in std_logic; - b: in std_logic; - z: out std_logic); -end xorgate; - -architecture e2 of xorgate is -begin -z <= a xor b; -end e2; - -library ieee; -use ieee.std_logic_1164.all; - -entity orgate is -port(a: in std_logic; - b: in std_logic; - z: out std_logic); -end orgate; - -architecture e3 of orgate is -begin -z <= a or b; -end e3; - - - -architecture structural of full_adder_structural is - -component andgate -port(a: in std_logic; - b: in std_logic; - z: out std_logic); -end component; - -component xorgate -port(a: in std_logic; - b: in std_logic; - z: out std_logic); -end component; - -component orgate -port(a: in std_logic; - b: in std_logic; - z: out std_logic); -end component; - -signal c1,c2,c3: std_logic; - -begin - -u1 : xorgate port map(a,b,c1); -u2 : xorgate port map(c1,cin,sum); -u3 : andgate port map(c1,cin,c2); -u4 : andgate port map(a,b,c3); -u5 : orgate port map(c2,c3,carry); - - -end structural;
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