Thank you Jerry Fan.
I've heard about Lauterbach emulators...i think they are the best ones, but aren't they too expensive?
Something cheaper but equally functional?
I found looking on the internet others brands...
http://www.sophia-systems.com/
http://www.arm.com/community/partners/display_product/rw/ProductId/2043/
but i don't know how they work...
No one used them?