That would actually work, I guess :). I'm pretty sure the memcpy, memmove, etc. implementations I've seen for this architecture all work by copying one byte at a time (argh!) though, but that problem can be solved with some smart-if-ugly hackery.

But, as you said yourself, it would be kind of messy, in that it would be hard to be certain if it works in 100% of the cases.

I think it would be easier to just change the toolchain code and make it think the processor is little endian.