If you want to return to your program ( I assume you do ) then do this: ld a,1 out (3),a halt ld a,11 out (3),a ----- Original Message ----- From: Brent Schneider <brent@calc.org> To: <assembly-86@lists.ticalc.org> Sent: Tuesday, December 07, 1999 5:49 PM Subject: A86: power down > > What is the most efficient way to power down the calc in asm? > > Thanks, > Brent > >