lea $4c00,a0 lea VS,a1 move.w #2999,d0 xorloop: eor.b (a1)+,(a0)+ dbra d0,xorloop This is kinda what I was thinking about. A question, though: how do you XOR the VS onto the LCD_MEM? (I've never tried anything with a VS before) jeffrey _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com