Problems when switching BP7.0 real mode to protected mode

[dmantione]

So you mean that Free Pascal does not "start over" Byte and Word-types on a Intel32 cpu?

If you have:

[pascal]
var a:word;
b:cardinal;

begin
b:=65535;
b:=a+1;
[/pascal]

... there is no start over. However, my comment was mostly targetted at constructions like:
[pascal]
var a:0..9;

begin
a:=9;
a:=a+1;
[/pascal]

... there is no start over in these cases.