I have used macro assembler to generate 4 different targets from the same source - powerpc, micro blaze, x86, and C and it worked wonderfully. a caveat being th

I have used macro assembler to generate 4 different targets from the same source - powerpc, micro blaze, x86, and C and it worked wonderfully. a caveat being that the projected language was specifically for this one piece of firmware and would likely not generalize. for example the firmware used the ppc cache management instructions and they weren't available on the other platforms, so they were nops there.