A question about fixed point types

[cis.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!agate!do c.ic.ac.uk!uknet!mcsun!sztaki!news@ucbvax.Berkeley.EDU (Zoltan Sugar)]

 What does it mean 'universal fixed type'?

                   ??????  type UNIVERSAL_FIXED delta system_depend range 0.0 .
. 1.0;

And if it is true, then if I write

declare
	type t1 is delta 0.01 range 10.0 .. 100.0;
	type t2 is delta 0.1  range 100.0 .. 1000.0;
	a1 : t1 := 11.0;
	a2 : t2 := 111.0;
begin
	a2 := t2(a1 * a2);
...

then the a1 * a2 epression has universal fixed type. But this value (11.0 * 111
.0)
is out of range of (0.0 .. 1.0). I don't understand it.
And how the generated code used to storing this values.


			Thanks.