Robin and i wrote a paper on simulation that focused on QEMU and the GNU sim with the Blackfin architecture. it covers implementation, testing, and benchmarking. maybe some people will find it useful. maybe not. http://docs.blackfin.uclinux.org/lib/exe/fetch.php?media=presentations:ols-2011-sim.pdf then we presented it at OLS this year: http://docs.blackfin.uclinux.org/lib/exe/fetch.php?media=presentations:ols-2011-sim.odp -mike