GENWiki

CALL -1370. Re-boots disk system.

Want to omit the pause when you issue

 the CATALOG command and you have
 more than a screenful of programs?
 It's easy! Enter the monitor and
 type... AE34:60 ...(DOS 3.3)

PEEK(-18070) If 150 is returned then

 you are using DOS 3.3. This PEEK
 works for both Applesoft & Integer.

Here's a 16/13 sector hardware mod:

 (Allows you to switch between DOS
 3.2 & 3.3 without Basics Disk by
 simply flipping a switch).
 Remove P5A chip from P5 socket.
 Get the original P5 (DOS 3.2) chip.
 Bend out pin 20 on both chips and
 place the P5 chip on top of the P5A
 chip (piggyback). Solder pins 1-19
 of P5 chip to pins 1-19 of P5A chip.
 Insert one end of a wire into pin
 20 of the P5 socket and solder the
 other end to the common (center)
 connector of a SPDT switch. Insert
 the 2 piggyback chips into the
 P5 socket (pins 20 of both chips
 should not be inserted into the
 socket or connected to anything at
 this time). Solder pin 20 of P5 chip
 to one of the 2 free connectors on
 the SPDT switch. Solder pin 20 of
 P5A to other switch connector. Be
 sure there are no shorts, that you
 followed directions before turning
 on power. Flipping switch in one
 direction or the other selects be-
 tween either DOS when booting.

 NOTE: This will definitely VOID your
       warranty. If you make this mod
 you do so at YOUR OWN RISK. Had to
 say that so I don't get sued (but
 the mod WORKS).

For Language/Memory Card users: If you are tired of DOS 3.3 dumping whatever language is on your card every time you re-boot with a PR#6, here's the fix:

 Using Dan's Disk Utility or some
 other similar program, read track 0,
 sector $09, byte $CC (should be $81)
 and change it to $10. Now when you
 do a PR#6 whatever is in the
 language card will still be there.

Here's 4 good POKES I'm sure you'll

 find a use for. They will turn your
 disk drive(s) on & off without
 reading or writing. You can use
 these to run the dri