Re: Apple CPM manual collection

["Michael J. Mahon" <mjmahon@aol.com>]

Don Bruder wrote:
> In article <1112753625.101419.299910@z14g2000cwz.googlegroups.com>,
>  frankdowling1@yahoo.com wrote:
>
>
> > I have the following Apple CPM Manual Collection.
> > Copies not originals.
> > Any ideas of who these would be of historical or academic interest ?
>
>
> #s 1-20, 22, and 23 are pretty much "common as dirt", and probably only 
> of interest to collector types, or folks who are lacking one of them, 
> and then only if they don't care if it's "the original" or a xerox copy. 
> A little looking around should find most (if not all) of them in 
> second-hand bookstores, on eBay, or similar places.  
>
>
> > 21) Whats Where in the Apple
> > A Complete Guide to the Apple Computer Micro Ink
>
>
> *THIS* one is practically worth its weight in gold! Although all of the 
> information in it can be found in many places, no other single 
> publication is a more in-depth reference to every aspect of the Apple 
> II's memory map. Prof. Luebbert did an EXCELLENT job of pulling together 
> about a zillion pieces of information, from god-only-knows-how-many 
> sources. Those who have a "real" copy of it (and the knowledge to put it 
> to use properly) probably won't part with it for love nor money. Those 
> who want a copy would almost certainly leap at the chance to get even a 
> xerox, particularly if it's one of the later "With Apple IIe addendum" 
> editions.

Maybe your regard for it is enhanced by the way you acquired it!  ;-)

I have the blue edition ("What's Where in the Apple? Including the
Atlas and Gazzetteer") and the red one ("Guide to What's Where in
the Apple"), but have only found them occasionally helpful.

For example, when someone else's program does a PEEK, POKE, or CALL
to an address, looking it up here can save some time.

But, if you are writing your own programs, obscure (and frequently
undocumented) entry points and variables should be avoided.

If I want to know about DOS routines, I consult a DOS disassembly, and
similarly for ProDOS and Applesoft.  This provides much more information
about the actual semantics of the variable or entry point than the one-
liner approach of "What's Where..".

-michael

New Applesoft BASIC interface for NadaNet networking!
Home page:  http://members.aol.com/MJMahon/