wish: optimize (x > 0.) floating point comparison.

[Joe Buck]

> On Tue, Sep 22, 1998 at 04:48:35PM -0400, Robert L Krawitz wrote:
> > BTW, there's another issue, which cuts both ways: FP numbers in the
> > FPU have more precision and range (64/15) than FP numbers in memory
> > (52/11).
> 
> Keep that intel-centric abortion to yourself.  Sparc doesn't do that.

The Motorola 68000 architecture has the same problem.