Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!dlyons
From: dlyons@Apple.COM (David Lyons)
Newsgroups: comp.sys.apple
Subject: Applesoft from DOS 3.3 to ProDOS
Message-ID: <31593@apple.Apple.COM>
Date: 25 May 89 01:26:21 GMT
References: <8905240736.AA18691@crash.cts.com>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 61

In article <8905240736.AA18691@crash.cts.com> pnet01!pro-nsfmat!pro-pac!tomj@nosc.mil writes:
>Help!  I am trying to rewrite an old Dos 3.3 Applesoft program and the darned
>thing gets stuck in several places.  I need help in converting the following
>from old 3.3 to ProDos:
>the "&" sign - I know this is a call, can another be used?

As far as Applesoft is concerned, "&" is just a command that jumps to $3F5.
There must be a binary file with your program containing some machine
language utilities.

>the "& BELL" to ring the bell

That would be part of the abovementioned binary file.  You could probably just
"PRINT CHR$(7);" instead.

>I get an "NO BUFFERS AVAILABLE" when I try to run it.  Can I type "FREE"?

NO BUFFERS AVAILABLE probably means you're trying to BLOAD (or BRUN) something
at an address that is already in use by BASIC.SYSTEM.  This is probably the
machine language "&" package.

Under BASIC.SYSTEM you can't just move HIMEM down the same way you could under
DOS 3.3.

>How do I convert "PRINT CHR$(4);"BRUN CODE" when CODE is the program I want to
>run?
>How do I load binary files?  In 3.3, it was "PRINT CHR$(4);"BLOAD WHATEVER"

These BLOADs and BRUNs shouldn't need modification, except as required by any
rearranging of memory usage that you need to do.

>How do I type the prefix for the disk on line?

BASIC.SYSTEM is designed to behave like DOS 3.3 *until* you use the PREFIX
command.  You can still use ,S and ,D options to access devices by slot and
drive.

>And probably the best question of all - Is there some publication that I can
>get that will explain the above?  Specifically the marrage between ProDOS and
>Applesoft?  One that will tell me about all the ins and outs of basic
>programming with ProDOS?

There's a book called _BASIC Programming With ProDOS_ that would be immensely
helpful.  Addison-Wesley.

There are no doubt other books, and back issues of Open-Apple/A2-Central are
always good.

>UUCP: {nosc, cacilj, sdcsvax, hplabs!hp-sdd, sun.COM}
>                        ...!crash!pnet01!pro-nsfmat!pro-pac!tomj
>ARPA: crash!pnet01!pro-nsfmat!pro-pac!tomj@nosc.MIL   
>INET: tomj@pro-pac.CTS.COM - BITNET: pro-pac.UUCP!tomj@PSUVAX1

 --Dave Lyons, Apple Computer, Inc.          |   DAL Systems
   AppleLink--Apple Edition: DAVE.LYONS      |   P.O. Box 875
   AppleLink--Personal Edition: Dave Lyons   |   Cupertino, CA 95015-0875
   GEnie: D.LYONS2 or DAVE.LYONS         CompuServe: 72177,3233
   Internet/BITNET:  dlyons@apple.com    UUCP:  ...!ames!apple!dlyons

   My opinions are my own, not Apple's.