> Van: Tijl Coosemans <tijl@ulyssis.org> > > #define AppOnErr(xxxx) ld hl,xxxx \ call 0059h > #define AppOffErr call 005Ch > > AppOnErr(errLabel) > [..code..] > AppOffErr > ret > > errLabel: > [..error code..] Are you shure this will work on all ROM versions? And is this for the Ti83 - or +? Henk Poley <><