Multitasking for Apple //e, //c v1.1


  This program has been written on a Apple //e with no 65C02, the mouse in
slot 4. It works fine in those conditions, brings no virus or other nasty
thing. I also tested it on a //c with mouse in any slot.

  You are encouraged to distribute that program (with docs and so on) but
if you want to use it, you must send something to me :

         What you think                           What you send

     This is a nice program                      a nice postcard
   Very nice : I even use it !                         $5
I've been looking for it for ages                      $10

(Francs instead of dollars are accepted of course)

  I'm ready to work on my program to have it compatible with anything,
if you give me a way to do it. Bug reports encouraged too.



  How to use the program :
You must have the file SHARE (binary). It is an executable program that
adds 3 external commands to BASIC.SYSTEM.

]SHARE,Axxxx,Lyy  launches the program that starts at xxxx (may be decimal
like A9348 or hexa like A$2000) with a priority of yy (may be 25,33,50,66 or
75 percent)
For instance to launch the program thats begins at $4000 giving it 33% of the
processor time, juste type SHARE,A$4000,L33

]NOSHARE          stops the second task (the one specified byt SHARE)

]DOSHARE          restarts the second task to the point it had stopped
It is the opposite command of NOSHARE.


(With my program, I now have a background printing of the graphic page
on my ImageWriter, and I can play DrawPoker while using another program)
  Just have a try :

_ Execute SHARE :
]BRUN SHARE

_ put a single program in $300 that constantly writes a 'A' at the top of the
screen :
]CALL -151
*300:A9 41 8D 00 04 4C 00 03 (enter this with monitor)
]3D0G

_ launch that task :
]SHARE,A$300,L25


Then, you will be able to go on with the basic.system, as if nothing had
happened. But at the top of thew screen, you will see a 'A' that will stay
even if you type HOME, because the program at $300 hasn't stopped.

If you have requests about this program (source, ideas, etc...) write
to me, I'll try to answer if I have time.

The differences with the first versions are :
_ the program now looks for the mouse no matter where it is
_ it corrects a bug from the mouse card that made the system crash


Here's my address :

Alain Raynaud
154 rue d'Aulnay
92290 Chatenay Malabry
France

Or by electronic mail : <ULMO031@FRORS12.BITNET>    VM  site
                     or <ULMO031@FRORS31.BITNET>    MVS site