Embedded Files
Half Adder
Half Adder
A half adder has 2 input and 2 output....
Input a and b values to be added
output s ( sum ) and c ( carry ) bits
Half Adder test bench
Half Adder test bench
This code creates input values for the input variables
It creates a "process" that sets the input values and waits 1 ns, then continues ...
Half Adder run
Half Adder run
We compile/analyze ha.vhdl and ha_tb.vhdl
we elaborate ha_tbl
then we run ha_tbl and output ha.vcd file
VCD file
VCD file
The VCD file contains a mapping of out variable names to internal symbols
and for each time period it contains the values of each variable/signal
Half Adder Wave
Half Adder Wave
we use gtkwave to display the wave form from ha.vcd
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