%
% set the alternate meaning into the din (5 hex digits) or dil (6 hex digits)
%
% stack: value altern dil-version
%
{
 {
  0x800000 or
 } if
 6 prezero
}
{
 {
  0x80000 or
 } if
 5 prezero
} ifelse
%
% stack: proper-leadin
%