alternate forms of typeless constants

[Craig Burley]

>Unfortunately, r1mach.f uses this form for only two architectures (the
>DEC Alpha and ELXSI 6400).  The most frequently used form is with a Z
>prefix, e.g. Z'7F7FFFFF'.  I suggest that g77 be generalized to accept
>at least that form. 

I thought it already did!  Though I think it defaults to treating
those as INTEGER, with an option to change to treating them as
typeless.  Look up "boz constants" or other occurrences of "boz" in
the docs.

        tq vm, (burley)