[PATCH] Remove GMP in favor of MPFR

[Feng Wang]

--- Richard Henderson <rth@redhat.com> µÄÕýÎÄ£º> On Sun, Jul 04, 2004 at
10:57:26AM -0700, Tim Prince wrote:
> > >      /* Recall that IEEE numbers are interpreted as 1.F x 2**exp,
> > >         whereas the intermediate representation is 0.F x 2**exp.
> > 
> > That should be 0.5F x 2**exp
> 
> No, the "1" is implicit in the IEEE format.  There is no implicit
> bit in the real.c representation.  Thus "0.F" is correct.
It's the same with fortran.

In fact, IEEE just describes the storing format of floating point. 8 bits hold
the binary exponent with the range [-126, 127](normalized). In normalized form,
there is an implicit '1' in the fraction. Fortran uses "0.F x 2**e" REAL
concept model. The exponent range should be [-125,128].

Feng Wang

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