adding files

1 files changed, 22 insertions, 0 deletions

diff --git a/nghdl/Example/nghdl_half_adder/nghdl_ha.vhdl b/nghdl/Example/nghdl_half_adder/nghdl_ha.vhdl
new file mode 100644
index 00000000..f9f2e929
--- /dev/null
+++ b/nghdl/Example/nghdl_half_adder/nghdl_ha.vhdl
@@ -0,0 +1,22 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+ 
+entity nghdl_ha is
+port (
+    	i_bit1  : in std_logic_vector(0 downto 0);
+	    i_bit2  : in std_logic_vector(0 downto 0);
+    	o_sum   : out std_logic_vector(0 downto 0);
+    	o_carry : out std_logic_vector(0 downto 0)
+    );
+end nghdl_ha;
+ 
+
+architecture rtl of nghdl_ha is
+
+begin
+ 
+  o_sum   <= i_bit1 xor i_bit2;
+  o_carry <= i_bit1 and i_bit2;
+
+end rtl;
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