If you're looking at dynamic recompilation, then something like QEMU is a good place to start (see http://www.qemu.org/ ), but it might need more external memory for things like its translated code cache. For my project, I was hoping to be able to keep the existing PCB from the CPU being emulated, p...

Thanks for your reply. I still have a lot to learn about the XMOS CPUs and how to use them to their best effect. I will have a look at the other links you provided and then figure out how best to proceed. Right now, it seems like getting my hands on one of the eval boards and learning my way around ...

The XMOS processor family seems to have plenty of "oomph", but are they suitable to use as emulated CPUs for older, hard-to-get 8 & 16-bit CPU families ? I'm thinking of some of the early CPUs that are commonly emulated by software in MAME / MESS environments (mainly for retrogaming), ...