Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!dlyons
From: dlyons@Apple.COM (David Lyons)
Newsgroups: comp.sys.apple
Subject: Re: GS Clock
Message-ID: <33202@apple.Apple.COM>
Date: 17 Jul 89 05:14:11 GMT
References: <8907140356.AA09227@crash.cts.com>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 30

In article <8907140356.AA09227@crash.cts.com> pnet01!pro-nsfmat!pro-europa!pete@nosc.mil writes:
> FOR     : Any Apple II with 128k, 80 col, and ProDOS 8
> LANGUAGE: AppleSoft BASIC
> WITH    : Lots of & commands in BASIC, and lots of ML routines
>  I need:
>     The addresses to PEEK and the values of them for the IIgs.
>        (i.e.:  PEEK(-1088) on an enhance //e is 224.  unenhanced is 234.)
>     An ML routine to read the IIgs clock WITHOUT the TOOLBOX and 
>     WITHOUT & commands...

You can peek the regular ProDOS locations for the date and time.  This won't
get you seconds, but it will work on any machine running ProDOS.

There is *no* way to reliably identify a GS just by PEEKing.  You need to
JSR $FE1F after setting the carry flag.  If and only if the carry comes back
cleared, you are on a GS.  See Apple II Miscellaneous Technical Note #7:
Apple II Family Identification for more information.

There is guaranteed way to read the GS clock without using the toolbox (why
don't you want to?).  Even the built-in ProDOS clock driver for the GS
calls the toolbox to read the time.

 --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.