> > m68k does too, just nobody uses it any more or the ones they use don't > > have the co-processor or have a different FP instructions now. In > > fact this where the problem started, i387 just continued in the same > > fashion. > > Huh? m68k still uses extended precisions and will continue to do so, it's > ColdFire that doesn't have it anymore.
IIUC excess precision is only a problem on earler m68k implementations. The 68040 adds instructions that perform correct rounding (fdadd.x etc.), so does not suffer from the excess precision problems. Paul
