anybody done this before?

[blumpkin blownuts]

you just said a bunch of shit and then said "it happens all the time" to someone whose job it was to write a modern bootloader and real time operating system for the blackfin 548

so, no

and the assembler I wrote for the RISC CPU I designed (largely in TTL) for a term project was custom-designed to support its own instruction set. Someone else wrote a compiler that allowed it to run simplistic C programs, on my instruction set.
You're still not convincing me that an embedded system can process an HLL-compiled program without it being first broken down into instructions native to the architecture.