Delphi assembler constant 'eof'

There seems to be an undocumented constant eof in asm block context. This was tested using Delphi 7.

program TestEof;
{$APPTYPE CONSOLE}
var
  example : Integer;
begin
  asm
    mov example, eof
  end;
  writeln(example);
  readln;
end.

This prints out 14.

Where does that constant eof and it's value value $0E or 14 come from?

EDIT: this is the compilation result

...
call @InitExe
// mov example, eof
mov [example], $0000000e
// writeln(example)
mov eax, [$004040a4]
mov edx, [example]
call @Write0Long
call @WriteLn
call @_IOTest
// readln;
...