On Thu, Dec 17, 2009 at 10:43:01PM +0530, Shakthi Kannan wrote:
> Hi,
> 
> Newbie to ghdl, here.
> 
> I have an entities declaration file, lava.vhd, here:
> http://shakthimaan.com/downloads/hardware/vlsi/lava.vhd
> 
> There is this halfAdd.vhd (Half Adder circuit) example that uses the
> definitions from lava.vhd file here:
> http://shakthimaan.com/downloads/hardware/vlsi/halfAdd.vhd
> 
> How do I include the lava.vhd file in halfAdd.vhd file with ghdl?

Hi,

you don't need to include.  Analyze first lava.vhd and then halfadd.vhd, like
this:

$ ghdl -a lava.vhd
$ ghdl -a halfadd.vhd

But you won't be able to simulate your design because it is not standalone.

Tristan.

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