GCC 3.3.2 and Alchemy AU1100

["Hamilton, Ian" <Ian.Hamilton@gbr.xerox.com>]

Hi there.

I'm trying to build software for the AMD AU1100 processor using version
3.3.2 of the gnu compiler, and I'm having trouble figuring out the -march,
-mtune, etc settings.

Version 2.95 of gcc uses something like -mcpu=r4600, but this doesn't work
with 3.3.2.

I've tried other likely-looking options (e.g. -mips32), but the compiler
fails to assembler instructions like mtc0 and cache.

Has anyone built for the AU1100 using gcc 3.3.2? If so, could you tell me
the cpu options you used please?

Thanks
Ian Hamilton.