NAME
    IEEEDPFlt -- convert integer to IEEE double precision number
SYNOPSIS
      x   = IEEEDPFlt(  y  );
    d0/d1              d0
    double  x;
    long    y;
FUNCTION
    Convert a signed 32 bit value to a double precision IEEE value
    and return it in d0/d1. No exceptions can occur with this
    function.
INPUTS
    y -- 32 bit integer in d0
RESULT
    x is a 64 bit double precision IEEE value
BUGS
SEE ALSO
    ieeedpfix