+ implemented absolute seg:ofs vars on i8086



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25666 3ad0048d-3df7-0310-abae-a5850022a9f2
* ScrWidth changed back to absolute, since the compiler has been fixed to support it

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25667 3ad0048d-3df7-0310-abae-a5850022a9f2