looking for a burg-style code generator generator

i want to extend a burg-style code generator generator to write a
retargetable compiler, implementing the algorithm:

  Rainer Leupers: Code Selection for Media Processors with SIMD
Instructions. DATE 2000: 4-8

what i have now is only iburg, though robust but with very limited
functionality.

i have consider using "nova" - NONA (code selector description translator)
but it seems not be updated since 2001.

any other suggestion?