Yes, it has to clear at least one byte using A so that it can clear the rest of the screen. > >At 08:34 PM 9/29/98 -0700, you wrote: >> >>Does _clrLCD destroy the a register? I think _clrScrn does, doesn't it? > >It shouldn't, the a register is not involved in the ldir instruction. No >guarantees tho. >CHICANE >ICQ: #14727618 >chicane on EFNET #ti >Homepage: Under Construction.