Re: Programming the Apple IIe via the cassette in

["Michael Pender" <mpender@hotmail.com>]

ground.ecn AppleII Librarian <apple2pd@ground.ecn.uiowa.edu> wrote in
message news:bdusvl$1pi$1@server05.icaen.uiowa.edu...
> In article <QetMa.9236$JY1.7045@nwrddc01.gnilink.net>,
> Michael Pender <mpender@hotmail.com> wrote:
> >The cassette interface uses the 'LOAD' and 'SAVE' commands (without an
> >argument) to load and save programs from cassette.
> >
> >The DOS 3.3 and ProDOS operating systems both 'replace' the LOAD and SAVE
> >commands to access the disk device.  You'll need to chose one or the
other;
> >you can have either cassette access or disk access, but not both.
> >
>
> I disagree.  I think both work.  print chr$(4);"load xxx" invokes the disk
> access.  load (without the print chr$(4)) invokes the monitor cassette
> access.  If I remember correctly (and it gets harder everyday, but I meet
> lots of new people :-)) one can do both disk and cassette load/save in one
> pgm (basic or assem).  load/save doesn't get replaced, the calling
> sequence determines which is used.
>
> $0.02

It sounds like the trick in 'immediate' mode is to avoid the DOS 3.3
intercept routine by making it into an AppleSoft command, i.e.:

] LOAD            Doesn't work

        versus

] :LOAD           Works

In 'run' mode:

100 print chr$(4)"LOAD"     Doesn't work

        versus

100 LOAD                          Works

Nifty.

- Mike