TweetFollow Us on Twitter

Letters, Mousehole
Volume Number:1
Issue Number:3
Column Tag:LETTERS, MOUSEHOLE

Letters, Mousehole

NO VAPOROUS FLUFF

Enclosed is my subscription to MacTech. I really appreciate the quality of the articles and the technical detail they contain. MacTech is a refreshing change from the vaporous mass market Macintosh magazines. I would like to see in a future issue, an article or series of articles describing how to interface with the packages, in particular the disk package.

Robert Leyland

Novato, CA.

A C BENCHMARK PROGRAM

While I do have your attention, I would like to pose the following test for the Mac C compiler from Consulair Corporation:

main()
{

union u_storage{
  long a_long;
  struct T_0000{
         short a_short;
         short B_short;
  }S_0000;
)storage;

storage.a_long = 6;

printf(“/na_short = %d”, storage.S_0000.a_short);
printf(“/nb_short = %d”, storage.S_0000.b_short);
printf(“/n”);
}

Three implementations I worked with generated these results:

COMPILER X:
a_short = 60
b_short = 0

COMPILER Y:
a_short = 0
b_short = 60

COMPILER Z:
a_short = 0
b_short = 6

If Consulair’s C generates code similar to Compiler Z, I am definitely interested in it!

Robert Heinich

Boca Raton, Fl.

There wasn’t time to report the results this month, but watch for it next month in Bob’s C column. D.S.

A CONTROL DEFINITION FUNCTION

Thought I’d share with your readers part of a program I’m working on. I need to have a control similar to the small double-pointed arrow used to set the time in the alarm clock, except acting more like the arrows in scroll bars, which activate only when you release the mouse button. According to the Control Manager section of Inside Macintosh, this requires writing a control definition function. The problem is, the other Toolbox routines treat this routine as if it were written in Pascal, and I want to use Aztec C. (Note: there is no problem calling a Pascal format toolbox routine from C). This required writing an assembly-language interface. [Manx informs me that they will soon be upgrading their C to allow imitatiing Pascal; this may still be useful for users of other C compilers]

My routine is called arrow_ctrl; this is actually the name of the assembly lang- uage interface which Toolbox routines like FindControl() call. It saves the caller’s address, then calls the high-level language routine a_ctrl. Since Pascal pushes arguements on the stack in the reverse order from C, I could have switched them in arrow_ctrl. Instead, I decided it was more efficient merely to reverse the order in a_ctrl (thus it varies from the archetypical MyControl() in IM). Aztec C returns the function value in register D0; Pascal expects it to be on the top of the stack. This is because Pascal functions pop their arguments off the stack; C requires the calling function to do this (thus allowing for variable numbers of arguments). [See figure 1 for an illustration of the stack used by C and Pascal; note distinction between words and longwords.]

What took me a bit longer to figure out was that C is using some registers that Pascal considers sacred. According to Manx, these were registers A2 and D3. An earlier version of my interface saved all registers except D0 and SP; you might want to do this for safety if you’re using a different compiler.

C PROGRAM SHELL

/* args are reversed because of Pascal
         call */
long a_ctrl(param,message,ctrl,
 variation)
int      variation,message;
ControlHandle ctrl;
long    param;
{
   Rect        *r;
  
   r = &((**ctrl).contrlRect);    /*pointer 
                      to control’s rectangle */
   switch (message) {
        case initCntl:

.
. etc.
.
   }
   return(OL);
}
ASSEMBLY PROGRAM

long save_r, save_a2, save_d3;   /* Used                             
     in ASM interface  */
#asm
 public arrow_ct_;note truncation

arrow_ct_:

move.l (SP)+, save_r_;pop return addr.
move.l A2, save_a2_;save registers                       that C doesn’t, 
but Pascal does
move.l D3, save_d3_
jsr a_ctrl_ ;call C routine
add.w #12,SP;wipe out params
move.l D0,(SP) ;put return value in Pascal position
move.l save_a2_,A2 ;restore register
move.l save_d3_,D3 ;restore register
move.l save_r_, -(SP);push return addr
rts;return to caller
#endasm

David Dunham

Goleta, CA.

MacPascal Looks Great!

The idea of a magzine devoted to programming and programmers is great. I am really looking forward to getting the first issue. I hope you have some good articles on MacPascal. I got mine the other day and it really looks nice. I just wish Apple would have put in a tutorial since I don’t know Pascal that well (yet). Oh well, learning the hard way is part of the fun. The store where I work is starting a Macintosh Users Group. We plan a newsletter and hopefully a BBS. When we get the newsletter printed up, I’ll send you a copy of it.

Jeff Goza

Abilene, TX.

Inside Mac Trouble

I am writingin regards to your ad in the new MacWorld. Journal looks really fantastic for me. I have trouble with Inside Mac, but seem to have more assembly /Pascal experience than most. However, I am a student, and [it follows...] poor. So, if you would, please send me a sample issue of MacTech at your convenience to try it out. (Enclosed is $2 for said issue).

Barry Polley

Ithaca, NY

Sample issue from last month is on the way. D.S.

C Questions...

I recieved my first issue of MacTech. Terrific! If the content continues to improve from this level of good programming aids for the Mac, it will be a superior Tech Journal. A few quick questions: Several references are made to Consulair C; I would appreciate more info on availability and cost. How does the Aztec C for the Mac stack up against the Consulair C or the Hippo C or others? This might make a good short article for MacTech. I use the Aztec C for the Apple II but it came bare-bones with no support library for Apple Graphics, sound or anything. Is the Aztec Mac C any beter?

David B. William

Professor of Music

Illinois State U.

We currently are avoiding the software review tar pits. But Bob may wish to respond in the next issue.

Doctor’s Orders

I recently noticed your ad in the MacWorld (Jan. 85) issue. It looks as though this may be what the doctor (Ph.D.) ordered! And would you please be sure to include the Nov. 84 [Dec] issue.

Dr. Bill Roberts

Golden, CO.

The Dec. issue is only available for $3, as there are just a few left. D.S.

MOUSEHOLE REPORT

RUSTY HODGE

SYS OP

A MAC BBS

Benchmarks

Here are some “Sieve” benchmark measurements in case no one else has provided them:

MacPascal ..... 1,270 seconds

Basic 2.0 ...... 1,156 seconds

Basic 2.0 (compressed).... 1,040 seconds

I tried programming MacBasic V.82 but had series problems with system errors. (It’s not ready for anything serious yet). Interesting part was that it said “DIM Flags(8190) exceeded dimension limits”. Congrats on issue two, it’s stuffed with lots of goodies and will take a month to explore each of the different articles. I’m kinda disappointed that MacPascal was slower than basic. The “compressor” aspect of Basic 2.0 looks like a good efficiency improver with 15-20 percent for this small program.

JCOM

MacTech

Just got my first MacTech and it looks great!!! Finally something to explain that #$@*@ IM manual! If you are considering sending in your $$ to get MacTech, do it now. Don’t wait, you won’t be sorry. What do I need to do to get Vol. 1, No. 1? I’ll send my right arm to get that assembly shell. Sounds great.

THE ATOM

MS WORD

I just got the Dec. 15 version of MS Word and I must say that it is just what I need in the way of a real word processor. You can have four documents open at once and you can divide them into two sections just like Multiplan. I had heard that the older versions of Word worked really slow, but this seems to work fine and has drivers for lots of letter quality printers. It is not all that easy to change fonts and stuff, but how many times do you really use more than 2 or 3 fonts in a file? Also you have a horizontal scroll bar taht goes out to somewhere around 18" so that problem is history. Also support of footnotes and other goodies make this the real Word processor that anyone who needs series word processing needs. This version still doesn’t have multiple rulers, but I will call them up and see if they are going to implement them. And as most MS products, Word has a nice help file and other goodies.

THE WATCHMAN

WAIT FOR CALL...FOREVER!

When using MacTerminal and Apple modems, do NOT select “Wait for Call”. Just do nothing after starting and it WILL answer calls. With Hayes modems, DO select “Wait for Call”. Apparently the Apple modem isn’t as Hayes compatable as we thought.

ROBERT WIGGINS

SOFTWARE SUPPLEMENT WORTH IT!

If anyone is considering buying INSIDE MACINTOSH from Apple, spend the extra $100 and get the software supplement too. Not only are you the first on your block to get the new Mac utilities (like resource editor), but you also get all the Lisa software. Useless if you don’t have a lisa you ask? The software is no good to you, but I’ve already gotten my money back by using those disks instead of buying another couple of boxes of blank ones!

BURRILL SMITH

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Civilization VI 1.0.6 - Next iteration o...
Sid Meier’s Civilization VI is the next entry in the popular Civilization franchise. Originally created by legendary game designer Sid Meier, Civilization is a strategy game in which you attempt to... Read more
djay Pro 2.0.1 - Transform your Mac into...
djay Pro provides a complete toolkit for performing DJs. Its unique modern interface is built around a sophisticated integration with iTunes and Spotify, giving you instant access to millions of... Read more
Microsoft OneNote 15.41 - Free digital n...
OneNote is your very own digital notebook. With OneNote, you can capture that flash of genius, that moment of inspiration, or that list of errands that's too important to forget. Whether you're at... Read more
TechTool Pro 9.6 - Hard drive and system...
TechTool Pro has long been one of the foremost utilities for keeping your Mac running smoothly and efficiently. With the release of version 9, it has become more proficient than ever. TechTool... Read more
Apple iOS 11.2.1 - The latest version of...
iOS 11 sets a new standard for what is already the world’s most advanced mobile operating system. It makes iPhone better than before. It makes iPad more capable than ever. And now it opens up both to... Read more
Things 3.3 - Elegant personal task manag...
Things is a task management solution that helps to organize your tasks in an elegant and intuitive way. Things combines powerful features with simplicity through the use of tags and its intelligent... Read more
RapidWeaver 7.5.5 - Create template-base...
RapidWeaver is a next-generation Web design application to help you easily create professional-looking Web sites in minutes. No knowledge of complex code is required, RapidWeaver will take care of... Read more
Adobe Animate CC 2018 18.0.1.115 - Anima...
Animate CC 2018 is available as part of Adobe Creative Cloud for as little as $19.99/month (or $9.99/month if you're a previous Flash Professional customer). Animate CC 2018 (was Flash CC) lets you... Read more
Postbox 5.0.22 - Powerful and flexible e...
Postbox is a new email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity of Apple Mail, but with more power and flexibility to manage even... Read more
Tunnelblick 3.7.4b - GUI for OpenVPN.
Tunnelblick is a free, open source graphic user interface for OpenVPN on OS X. It provides easy control of OpenVPN client and/or server connections. It comes as a ready-to-use application with all... Read more

Latest Forum Discussions

See All

Rules of Survival guide - how to boost y...
It's not easy surviving in the "every-man-for-himself" world of Rules of Survival. You'll be facing off against many other players who might be more skilled than you, or are luckier than you. There are a lot of factors weighing against you. With... | Read more »
FEZ Pocket Edition (Games)
FEZ Pocket Edition 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: | Read more »
Amazing Katamari Damacy guide - beginner...
Amazing Katamari Damacy brings the bizarro world of the original games to mobile and shifts them into an endless format that's just as addictive as the PlayStation entries. Your goal is still to roll as much random stuff as you possibly can, though... | Read more »
Portal Knights guide - crafting tips and...
In Portal Knights, you're only as strong as the items you have at your disposal. This sandbox adventure is all about crafting and building up the next big thing. Whether you're an avid explorer or collector, crafting will likely play a large part... | Read more »
The best deals on the App Store this wee...
A new week means new discounts on the App Store. This week's deals run the gamut of action-adventure titles, puzzle games, and one of the best narrative adventure series out there. If you're looking to fill out your mobile gaming library on a... | Read more »
What you need to know about Animal Cross...
We hope you've been hard at work on collecting all of those holiday items in Animal Crossing: Pocket Camp, because you're about to get a whole new list of fun things to do as the game receives its first big update sometime soon. There are a lot of... | Read more »
Reigns: Her Majesty guide - how to use e...
Ruling a kingdom isn't easy--doubly so for a queen whose every decision is questioned by the other factions seeking a slice of power. Reigns: Her Majesty builds on the original game's swipey tactics, adding items that you can use to move the story... | Read more »
The best new games we played this week -...
Friday has crept up on us once again, so it's time to honor the best new games we've played over the past few days. This past week was a pretty exciting one, with the debut of lots of beautiful new indies and some familiar faces returning to the... | Read more »
Portal Knights guide- beginner tips and...
Portal Knights is finally making the jump to iOS and Android, and it's already climbing the ranks to become the next big MMO experience on mobile. This sprawling sandbox game will let you pursue any adventure you wish, whether you want to sling... | Read more »
Reigns: Her Majesty guide - how to swipe...
Reigns: Her Majesty is storming the App Store this week, bringing more tinder-esque kingdom building to eager players everywhere. If you've played the original Reigns, you'll know that leading a kingdom is never easy. It's a careful balancing act... | Read more »

Price Scanner via MacPrices.net

Beats Holiday sale at B&H, headphones and...
B&H Photo has Beats by Dr. Dre headphones, earphones, and speakers on sale for up to $80 off MSRP as part of their Holiday sale. Expedited shipping is free, and B&H charges sales tax to NY... Read more
Holiday sale: Apple resellers offer 2017 15″...
MacMall has 15″ MacBook Pros on sale for $220-$300 off MSRP, each including free shipping: – 15″ 2.8GHz MacBook Pro Space Gray (MPTR2LL/A): $2179, $220 off MSRP – 15″ 2.8GHz MacBook Pro Silver (... Read more
Holiday sale: Apple resellers offer 13″ MacBo...
B&H Photo has 13″ MacBook Pros on sale for up to $150 off MSRP. Shipping is free, and B&H charges sales tax for NY & NJ residents only: – 13-inch 2.3GHz/128GB Space Gray MacBook Pro (... Read more
Apple Watch Series 2, Certified Refurbished,...
Apple has Certified Refurbished Apple Watch Nike+ Series 2s, 42mm Space Gray Aluminum Case with Anthracite/Black Nike Sport Bands, available for $249 (38mm) or $279 (42mm). The 38mm model was out of... Read more
Apple offers Certified Refurbished 2016 12″ R...
Apple has Certified Refurbished 2016 12″ Retina MacBooks available starting at $949. Apple will include a standard one-year warranty with each MacBook, and shipping is free. The following... Read more
B&H drops price on 13″ 256GB MacBook Air...
B&H has the 13″ 1.8GHz/256GB Apple MacBook Air (MQD42LL/A) now on sale for $1079 including free shipping plus NY & NJ sales tax only. Their price is $120 off MSRP, and it’s the lowest price... Read more
Holiday sale: 9″ iPads starting at $299, take...
MacMall has 9″ WiFi iPads on sale for $30 off including free shipping: – 9″ 32GB WiFi iPad: $299 – 9″ 128GB WiFi iPad: $399 Read more
Green Monday deal: 15″ 2.8GHz MacBook Pro on...
B&H Photo has the 15″ 2.8GHz Space Gray MacBook Pro on sale for $250 off MSRP for today only as part of their Green Monday/Holiday sale. Shipping is free, and B&H charges sales tax for NY... Read more
Green Monday sale: B&H offers 12″ Apple i...
B&H Photo has 12″ iPad Pros on sale for up to $150 off MSRP as part of their Green Monday/Holiday sale. Shipping is free, and B&H charges sales tax in NY & NJ only: – 12″ 64GB WiFi iPad... Read more
Holiday deal: 21″ and 27″ Apple iMacs on sale...
MacMall has 2017 21″ and 27″ Apple iMacs on sale for up to $200 off MSRP. Shipping is free: – 21″ 2.3GHz iMac: $999 $100 off MSRP – 21″ 3.0GHz iMac: $1199 $100 off MSRP – 21″ 3.4GHz iMac: $1379 $120... Read more

Jobs Board

QA Automation Engineer, *Apple* Pay - Apple...
# QA Automation Engineer, Apple Pay Job Number: 113202642 Santa Clara Valley, California, United States Posted: 11-Dec-2017 Weekly Hours: 40.00 **Job Summary** At Read more
*Apple* Retail - Multiple Positions - Apple,...
Job Description:SalesSpecialist - Retail Customer Service and SalesTransform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Retail - Multiple Positions - Apple,...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Retail - Multiple Positions - Apple,...
Job Description:SalesSpecialist - Retail Customer Service and SalesTransform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Information Security - Security Data...
# Apple Information Security - Security Data Analyst Job Number: 113119545 Austin, Texas, United States Posted: 10-Nov-2017 Weekly Hours: 40.00 **Job Summary** This Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.