TweetFollow Us on Twitter

Aug 86 Letters
Volume Number:2
Issue Number:8
Column Tag:Letters

Letters

Source Code Disk Subscription?

C.A. Weber

San Francisco, CA

Keep up the good work!

Suggestions: a) How about a subscription service for source code disks! b) How about an on-line forum for distributing source code, questions to authors and Prof. Mac, etc. [a) What a great idea; watch for an anouncement soon! b) That is what the Mousehole is for. We don't have the resources for a national board, although the GEM BBS system has contacted us about placing MacTutor's source code disks on their board and charging access so we get paid for them. We are looking into that proposal and any opinions would be welcome. We are somewhat leary of the disks becoming public domain and the small but important revenue source to MacTutor drying up. -Ed.]

Best of MacTutor

David York

Neusass, Germany

In the April Mail Order Store, you advised that your book "Best of MacTutor" would be coming "next month". I went through the May issue and did not find it. Is the book available? [Keep holding your breath, I'm working night and day on it. Meanwhile, we have tons of back issues of every issue except vol. 1 number 6. -Ed.]

Snooping in the Operating System

Russel Hobbie

St. Paul, MN

I am a scientific programmer who is enjoying my Mac and MacTutor very much. One thing which is not clear to me: if I want to start snooping around in the operating system, should I get MacNosy, TMON, or both? [Both are a must, but Nosy is specific to the problem of uncovering ROM mysteries. -Ed.]

New Macs:Old Macs

Gary Linford

Los Altos, CA

I have noticed several articles on the new file system HFS for which I am pleased, since I have just upgraded one of my Macs to a MacPlus. However, when Apple releases the second generation Mac (68020 CPU, open bus, wide monitor screen, etc.), I hope MacTutor articles will continue to be valuable for programming on the old Mac.

My current concern is for development software and the new MacPlus. I have a considerable investment in development software which is of little value on the MacPlus. How long will MacPlus owners have to wait , and how much will it cost to upgrade to the new versions which are HFS compatible? [Most products have now achieved some level of HFS compatability, and generally, the HFS bugs have been released at little or no cost to registered owners. MacTutor has encouraged Apple to discuss ways to standardize the problem of how a program finds a file without help from the user's standard file dialog. Right now, everyone is using their own algorithm or method of finding program dependent files and the result is to destroy the symmetry of the user interface between applications. We have talked to Apple about this, and they are organizing a group to collect recommendations on an informal basis to present some of the better approaches to the problem. -Ed.]

Stolen from Apple Computer, Part II

Steve Jasik

Menlo Park, CA

More notes on the "stolen from Apple Computer" Icon. I originally discovered the code with Macsbug in Dec 84 when I was searching for $60FE instructions (BRA *) in ROM. At that time I noticed that the code was dead (not referenced by any other routine in the ROM), but did not try to execute it. A few weeks after that I had the opportunity to meet with Andy Hertzfeld, and discussed Apple's paranoia over other manufacturer's stealing their ROM code. He pointed out that they had left some visible copyright notices in the ROM along with some secret notices. He said that it was possible for an Apple programmer to test if the ROM in a machine was "stolen from Apple" by going up to the Mac and typing in some commands. He did not explain to me the meaning of the code I had discovered. Some months later Duane Maxwell of Levco pointed out to me the effects of executing the code, and I posted the info on the Nosy SIG on Delphi and other places.

There are a number of points to be learned from this particular example. I believe the code first came to my attention in Nosy when I had to convert it from Data to Code during Review data. This was necessary because it was unreferenced. The other thing that makes this code easy to find is that it ends with a "BRA *" which is unusual. So if your going to protect your code with secret messages, you should conditionally branch to it from legimate code so that a flow analyzer does not pick it out as dead code, and do not terminate it with a "BRA *", which can be found with a simple Hex search. [Gee, Steve, don't teach 'em how to defeat your program! Watch for Steve's new and improved Nosy at the Boston Expo this month. He's got some great debugging tools coming our way! -Ed.]

Us Intermediate Programmers

Steven Brodie

Philadelphia PN

You folks put out a very informative publication; however, I wonder if it would be possible for you to cater a bit more to the beginning to intermediate programmer. I realize that those subscribers who are hardcore programmers would not appreciate this much, but when publications like Macworld, Macazine, MacUser, or A+ run tutorials, the language they use is usually BASIC, and they usually write about the most simplistic programming techniques. Perhaps you could provide the happy medium-not in every column-but maybe in a single column. [Look at the "Keyboard Sleuth" article in this issue, which presents both a useful utility and a very nice TML Pascal shell from which more powerful programs can be developed. -Ed.]

How to flatten HFS

Serge Froment

Canada

Please renew my subscription for one year. Keep on doing good work! By the way, I would like to know how to scan all files of an HFS volume in Pascal to print a complete directory of my DataFrame hard disk. I use TML Pascal. Thanks! [So would a lot of developers like to know this so they can find their files! SeeTom Taylor's very good Modula-2 article from last month's issue (July) on how to create a path name for HFS. In that article, he alludes to the various data structures that you can use to do a tree search through the directory list to build a data base of all the file names. -Ed.]

Manx Has its HFS Act Together

David Suess

Mesa, AZ

I thing that your magazine is the best available for showing how to program the Mac. One item you might like to know is that Manx Software is shipping version 1.06H, which is supposed to support the full HFS system, especially in terms of using the full 800K storage available for the DSDD floppies; 1.06G, would only recognize 400K.

Source Code For Sale

Wayne Rod

Tucson, AZ

I see a real and current need for interested parties to have complete access to useful information which helps stimulate their programming and problem solving abilities. As a result, I am selling source code for an intelligent linker/assembler, text editor and macro preprocessor for the back. I even have a Object C preprocessor. This source code is very reasonable, only $65 for the assembler/linker and $50 for the editor. Please notify your readers about our source code products. [You can contact Wayne at the WSM group in Tucson, AZ at (602)-298-7910. Anyone selling sophisticated source code for those prices should rate a phone call! -Ed.]

Thanks for MacTutor

David Wilson

Palo Alto, CA

Thank you for your prompt response in publishing my article about resource formats. For the last year, I have been telling everyone to buy MacTutor. Now, I'll also start recommending that they submit articles to you. I find MacTutor invaluable, and feel that you are doing a great job. I have a number of other articles in mind to submit. All I need is some free time... where have we all heard that before? [ Thank you. In the publishing business, you can never have too many articles...-Ed]

Wants TML 3-D Graphics Help

Lou Gallo

Flushing, NY

Please send me the 800K Utility II Disk and the source code for Mike Morton's famous "DissBits" routines. I'd like to see more TML Pascal articles. Finally we can have our cake and eat it too! It's great to be able to move from IM to the editor without translating. To me it feels like it's the only language for the Mac. (You probably hear that from every language's corner.) Oh, by the way, how about an article on those 3D graphics unit included with TML? Those procs look wierd! There's no help on them from TML or IM. [You should love this issue, since, after a recent drought of good TML articles, we have several good items this month. Perhaps Tom Leonard and his people can include some 3D documentation in an up-coming article in the series they are doing for us on their examples disk, a new product which features definition proc routines. -Ed.]

Mac Plus Glitch?

Frank Alviani

Waukegan, Ill

In going over Mike Schuster's fun little article on pop-up menus in the December 1985 issue of MacTutor, I noticed a small problem with the code. The menu is not drawn with the code as listed; it seems that until the sizeMsg is passed to the Menu Manager, a menu does not have a meaningful size. The fix is rather simple: add the following line:

MenuDefProc(mSizeMsg, theMenu, &menuRect, &nilPt, &whichItem);

after the call to WaitMouseUp() that starts the PopUPSelect. This may be due to the fact I am running this on a Mac Plus, yet another compatibility glitch.

 
AAPL
$98.79
Apple Inc.
-0.23
MSFT
$43.99
Microsoft Corpora
+0.02
GOOG
$587.28
Google Inc.
-3.32

MacTech Search:
Community Search:

Software Updates via MacUpdate

OS X Yosemite Wallpaper 1.0 - Desktop im...
OS X Yosemite Wallpaper is the gorgeous new background image for Apple's upcoming OS X 10.10 Yosemite. This wallpaper is available for all screen resolutions with a source file that measures 5,418... Read more
Acorn 4.4 - Bitmap image editor. (Demo)
Acorn is a new image editor built with one goal in mind - simplicity. Fast, easy, and fluid, Acorn provides the options you'll need without any overhead. Acorn feels right, and won't drain your bank... Read more
Bartender 1.2.20 - Organize your menu ba...
Bartender lets you organize your menu bar apps. Features: Lets you tidy your menu bar apps how you want. See your menu bar apps when you want. Hide the apps you need to run, but do not need to... Read more
TotalFinder 1.6.2 - Adds tabs, hotkeys,...
TotalFinder is a universally acclaimed navigational companion for your Mac. Enhance your Mac's Finder with features so smart and convenient, you won't believe you ever lived without them. Tab-based... Read more
Vienna 3.0.0 RC 2 :be5265e: - RSS and At...
Vienna is a freeware and Open-Source RSS/Atom newsreader with article storage and management via a SQLite database, written in Objective-C and Cocoa, for the OS X operating system. It provides... Read more
VLC Media Player 2.1.5 - Popular multime...
VLC Media Player is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, MP3, OGG, ...) as well as DVDs, VCDs, and various streaming protocols. It... Read more
Default Folder X 4.6.7 - Enhances Open a...
Default Folder X attaches a toolbar to the right side of the Open and Save dialogs in any OS X-native application. The toolbar gives you fast access to various folders and commands. You just click... Read more
TinkerTool 5.3 - Expanded preference set...
TinkerTool is an application that gives you access to additional preference settings Apple has built into Mac OS X. This allows to activate hidden features in the operating system and in some of the... Read more
Audio Hijack Pro 2.11.0 - Record and enh...
Audio Hijack Pro drastically changes the way you use audio on your computer, giving you the freedom to listen to audio when you want and how you want. Record and enhance any audio with Audio Hijack... Read more
Intermission 1.1.1 - Pause and rewind li...
Intermission allows you to pause and rewind live audio from any application on your Mac. Intermission will buffer up to 3 hours of audio, allowing users to skip through any assortment of audio... Read more

Latest Forum Discussions

See All

It Came From Canada: Tiny Tower Vegas
If you go to a casino, you might make a lot of money. If you run a casino, you’re guaranteed to make a lot of money. The choice seems pretty obvious. So while waiting for your shady real estate deals to move forward, get prepared with Tiny Tower... | Read more »
Z Hunter Review
Z Hunter Review By Lee Hamlet on July 29th, 2014 Our Rating: :: RIGHT ON TARGETUniversal App - Designed for iPhone and iPad While it might not necessarily break new ground, Z Hunter has enough tricks up its sleeve to ensure that... | Read more »
Huge Update Comes To Duet, Adding 48 New...
Huge Update Comes To Duet, Adding 48 New Stages Posted by Jennifer Allen on July 29th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Frog Orbs 2 Review
Frog Orbs 2 Review By Nadia Oxford on July 29th, 2014 Our Rating: :: THIS MAGIC IS A TAD MONOTONOUS Universal App - Designed for iPhone and iPad Frog Orbs 2 is repetitive, but younger players should enjoy it nonetheless.   | Read more »
Puzzix Review
Puzzix Review By Jennifer Allen on July 29th, 2014 Our Rating: :: NICE IDEAUniversal App - Designed for iPhone and iPad A little like Tetris, Puzzix is all about piecing together blocks and watching them vanish. It could do with... | Read more »
Cannonball eMail is Now Live – Works Wit...
Cannonball eMail is Now Live – Works With Gmail, Yahoo, Outlook, Hotmail, and AOL Posted by Jessica Fisher on July 29th, 2014 [ permalink ] | Read more »
To The End Review
To The End Review By Lee Hamlet on July 29th, 2014 Our Rating: :: A VICIOUS CYCLEUniversal App - Designed for iPhone and iPad To The End will test players’ patience, timing, and dedication as they try to navigate all 13 levels in... | Read more »
Kairobotica (Games)
Kairobotica 1.0.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0.0 (iTunes) Description: In a galaxy not so far away, miscreants and monsters are wreaking havoc, and it's up to everyone's favorite mechanical mascot... | Read more »
Traps n’ Gemstones Review
Traps n’ Gemstones Review By Campbell Bird on July 28th, 2014 Our Rating: :: CASTLEVANIA JONESUniversal App - Designed for iPhone and iPad Fight mummies, dig tunnels, and ride a runaway minecart to discover ancient secrets in this... | Read more »
The Phantom PI Mission Apparition Review
The Phantom PI Mission Apparition Review By Jordan Minor on July 28th, 2014 Our Rating: :: GHOSTS BUSTEDUniversal App - Designed for iPhone and iPad The Phantom PI is an exceedingly clever and well-crafted adventure game.   | Read more »

Price Scanner via MacPrices.net

Updated MacBook Pro Price Trackers
We’ve updated our MacBook Pro Price Trackers with the latest information on prices, bundles, and availability on the new 2014 models from Apple’s authorized internet/catalog resellers as well as... Read more
Apple updates MacBook Pros with slightly fast...
Apple updated 13″ and 15″ Retina MacBook Pros today with slightly faster Haswell processors. 13″ models now ship with 8GB of RAM standard, while 15″ MacBook Pros ship with 16GB across the board. Most... Read more
Apple drops price on 13″ 2.5GHz MacBook Pro b...
The Apple Store has dropped their price for the 13″ 2.5GHz MacBook Pro by $100 to $1099 including free shipping. Read more
Apple drops prices on refurbished 2013 MacBoo...
The Apple Store has dropped prices on Apple Certified Refurbished 13″ and 15″ 2013 MacBook Pros, with model now available starting at $929. Apple’s one-year warranty is standard, and shipping is free... Read more
iOS 8 and OS X 10.10 To Support DuckDuckGo As...
Writing for Quartz, Dan Frommer reports that Apple’s forthcoming iOS 8 and OS X 10.10 operating systems version updates will allow users to select DuckDuckGo as their default search engine. He notes... Read more
U.K. Hospital Using iPods and iPads To Record...
British news journal GazetteLive’s. Ian McNeal notes that the old “an apple a day keeps the doctor away” proverb is being turned on its head at http://southtees.nhs.uk/hospitals/james-cook/ James... Read more
13-inch 2.5GHz MacBook Pro on sale for $1099,...
Best Buy has the 13″ 2.5GHz MacBook Pro available for $1099.99 on their online store. Choose free shipping or free instant local store pickup (if available). Their price is $100 off MSRP. Price is... Read more
Roundup of Apple refurbished MacBook Pros, th...
The Apple Store has Apple Certified Refurbished 13″ and 15″ MacBook Pros available for up to $400 off the cost of new models. Apple’s one-year warranty is standard, and shipping is free. Their prices... Read more
Record Mac Shipments In Q2/14 Confound Analys...
A Seeking Alpha Trefis commentary notes that Apple’s fiscal Q3 2014 results released July 22, beat market predictions on earnings, although revenues were slightly lower than anticipated. Apple’s Mac’... Read more
Intel To Launch Core M Silicon For Use In Not...
Digitimes’ Monica Chen and Joseph Tsai, report that Intel will launch 14nm-based Core M series processors specifically for use in fanless notebook/tablet 2-in-1 models in Q4 2014, with many models to... Read more

Jobs Board

Sr Software Lead Engineer, *Apple* Online S...
Sr Software Lead Engineer, Apple Online Store Publishing Systems Keywords: Company: Apple Job Code: E3PCAK8MgYYkw Location (City or ZIP): Santa Clara Status: Full Read more
*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
Sr. Product Leader, *Apple* Store Apps - Ap...
**Job Summary** Imagine what you could do here. At Apple , great ideas have a way of becoming great products, services, and customer experiences very quickly. Bring Read more
*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.