[Banjo911]

The only thing you can't do is the sum of two data registers, and this only applies when calculating an effective address.

When you have 15 registers to work with that's not going to be more of a problem than only having 7 or 8 registers to work with.

[ajross]

I don't want to be too blunt, but have you looked at early 90's era 68k compiler output? It was crap. When Sun launched SPARC, like half the advantage of the platform was that the compiler was suddenly generating this amazingly clean code. The phantom spills and intra-GPR movs everyone was used to disappeared overnight.