RfD: IEEE-FP - comp.lang.forth | Google 網上論壇

David N. Williams <willi...@umich.edu> wrote:
 >> Andrew Haley wrote:
 >>  > [...]
  >>  > It's worth saying here that FDUP x F! x F@ F= shall always return
 >>  > true.  This ensures that the size of an FVARIABLE is big enough to
 >>  > hold a stack element.
 >
 >> Okay.
 >
 > This one may be a bit controversial, I warn you.  I think some Forths
 > use the full 80-bit FP stack but 64-bit F@ and F!.  I think that's
 > broken, but that's just IMO.

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