Changes

Secondly are the libraries.  These are like the include statements in C/C++.  Honestly I forget which libraries have exactly what tools in them, but a standard block will cover mostly any design you work on:

Secondly are the libraries.  These are like the include statements in C/C++.  Honestly I forget which libraries have exactly what tools in them, but a standard block will cover mostly any design you work on:

<code>

<pre>

 

-- This standard block will cover you for most designs.

-- This standard block will cover you for most designs.

-- Some development environments will auto-generate library "use" statements that may or may not include this set

-- Some development environments will auto-generate library "use" statements that may or may not include this set

use IEEE.STD_LOGIC_ARITH.ALL;

use IEEE.STD_LOGIC_ARITH.ALL;

use IEEE.STD_LOGIC_UNSIGNED.ALL;

use IEEE.STD_LOGIC_UNSIGNED.ALL;

</code>

</pre>