Program Entry

The following steps are used when writing VHDL code for a design that will be mapped to a Xilinx chip.

1. Make a file containing your program with a .hdl extension using the vi text editor . Include the following four lines at the top of your code:

   library IEEE
   use IEEE.std_logic_1164.all
   library ARITHMETIC
   use ARITHMETIC.std_logic_arith.ALL
   

2. Type the command qhlib work to make a directory to work in.
3. Type qvhcom design_name.hdl -synth to compile the code.