This reminds me of when the 86 was new, and everyone was saying it was impossible to emulate 85 programs :) > you start from scratch, kinda. You just take the code and rewrite it > into 86 asm. For example (85 to 86 porting is faarily easy...) Say the > line in the 85 prgram is this: > > ROMCALL _BUSYOFF > > Then, u would change it to: > > call _clrLCD