Hi,
I have quite a lot of float based 68k code (asm and C), some of which is quite sensitive to rounding and other fun things - varied implementations of floor() and integer conversion, some handwritten pow() operations etc. If/when this makes it into a version of Hatari I can compile I can do some tests with it.
I also created a simple 6888x conformance/correctness test recently, which was probably posted here a while back. Might be interesting to run the softfloat impl. against that sometime.
Doug.