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Re: TV commercials that bother me these days.
- Subject: Re: TV commercials that bother me these days.
- From: Paul Guertin <pg@sff.net>
- Date: Wed, 04 Apr 2001 23:03:07 +0900
- Newsgroups: alt.religion.kibology, comp.sys.apple2
- Organization: Amalgamated Karma
- References: <kibo-0903011703080001@potsie.std.com> <kibo-1403011537310001@potsie.std.com> <98opf2$l2f@epic4.Stanford.EDU> <kibo-1403011829320001@potsie.std.com> <3ab0c500$1@manno> <kibo-1503011342220001@ppp0b148.std.com>
- Reply-to: pg@sff.net
- Xref: supernews.google.com alt.religion.kibology:43295 comp.sys.apple2:7064
kibo@world.std.com (James "Kibo" Parry) wrote:
> she said that the Apple ][ allowed
> you to call a routine at location $3D0 to make the computer beep.
> She asked us to type "3D0G" to call that routine to hear it beep once.
$3D0 is normally a vector to the DOS 3.3 (or ProDOS) warm restart
routine (type 3D0G to exit the monitor and go back to Basic, with
DOS connected to the I/O hooks). Short machine language routines
often get put at $300-$3CF, which is free memory. The "beep"
routine in the monitor is at $FF3A.
Paul "300:A0 F6 20 3A FF C8 30 FA 60 N 300G" Guertin
pg@sff.net