starting a microcontroller simulator/emulator

Question

I would like to create/start a simulator for the following microcontroller board: http://www.sparkfun.com/commerce/product_info.php?products_id=707#

The firmware is

Answer 1

It's likely that the PIC 18F2520 already has an emulator core written for it,

An open source, cross-platform simulator for microchip/PICs is available under the name of "gpsim".