TweetFollow Us on Twitter

MacApp Pascal
Volume Number:11
Issue Number:11
Column Tag:Pascal Activists

MacApp Pascal Rides Again

Volunteers convert MacApp Pascal to generate native PowerPC code

By Brian Arnold and Guy McCarthy

In 1992, Apple stunned Macintosh developers by announcing that it was dropping MPW Pascal support from its compiler suite and from MacApp, their premier application framework. This was a shock, given that Apple had been advising developers for years to program in Object Pascal with MacApp for maximum compatibility with future technology.

MacApp developers split into two camps: those able to make the arduous transition to C++, and those who could not justify the expense or were unwilling to abandon Object Pascal. The latter group faced an uncertain future, and hopes of porting existing MacApp applications to run native on the new platform were slim.

Before the fateful announcement, Apple and Language Systems had been collaborating on the next generation of Pascal compilers for the RISC-based Macintosh. That project, however, was ultimately scrapped when Apple decided to drop multi-language support from its RISC compiler architecture. In December of 1993, development of LS Object Pascal began again, this time using source code from Apple’s MPW Pascal compiler as the base. It was a long and difficult task to merge the aging MPW Pascal source code with Language System’s FORTRAN technology and update it for the PowerMacintosh.

In May of 1994, the first native Pascal sample program was shown to an enthusiastic crowd of Pascal supporters at the World Wide Developers’ Conference. Shortly after, a grass-roots cooperative of Pascal MacApp developers was formed to investigate the possibility of porting MacApp native with the Language Systems compiler. The MacApp2PPC co-op (as it has come to be known) was organized by Brian Arnold of Lumina Decision Systems. This group of volunteers proceeded to accomplish what the corporations could not.

Over the next several months, contributors on three continents began the lengthy process of converting the entire body of MacApp 2.0.1 source code. In October, an FTP site and Web page were operational with a preliminary version of the scripts and documentation (see below). In November, key changes to the compiler’s runtime architecture were implemented to satisfy requirements of the group. By December 1994, all of the converted source code was compiling successfully with Language Systems’ beta LS Object Pascal compiler. Only runtime issues remained.

In February, the target release date of May 1995 was set to coincide with the Worldwide Developer Conference in San Jose, California. Final technical issues were addressed during a 48 hour “Hack Session” on March 17-19 in nearby Menlo Park. Language Systems sent two compiler engineers with Power Macintosh CPUs to aid the effort.

The Hack Session was a success. Participants (some of them operating remotely) included: Masahiro Abe, Brian Arnold, Colleen Barton, Per Bergland, Greg Branche, Larry Hamel, Steven Hopkins, Eric Jackson, David Johnston, Steve Lavagnino, Cheryl Lins, Kurt Schmucker, and Larry Tesler. Although the first native execution of a complete MacApp application was still weeks away, important technical issues, such as exception handling, were resolved. In addition, new technology such as floating palettes and other enhancements were merged into the Pascal framework.

In the weeks following the Hack Session, the co-op mounted an incredible effort to get PowerPC native MacApp 2.0.1 up to beta quality in time for the Developer Conference. Support for the Metrowerks Pascal compiler was added. Several key managers at Apple joined in and arranged a distribution license so that Language Systems and Metrowerks could include the PowerPC native MacApp 2.0.1 on their CDs. (Special thanks to Kurt Schmucker for rallying this effort!) The first developer release of MacApp2PPC shipped on CodeWarrior DR6 in May. An improved version shipped on DR7, but owing to a CD pressing glitch, the project files and documentation are wrong; the correct material is available online (see below).

About a dozen developers have already partially or completely ported their applications to PowerPC, and a few of them have already started shipping their native applications. Brian Arnold ported his own application, Analytica™, in under two weeks, and expects to ship by the end of the year.

It is hoped that by January 1996, two versions will be ready: the final, stable MacApp2PPC, and a developer release of an improved version. MacTech hopes to report further details in upcoming issues. In the mean time, developers who have LS Pascal can use the netborne release of MacApp2PPC. For more information see the MacApp2PPC web pages at:

http://www.lumina.com/arnold/MacApp2PPC.html

Or, for anonymous ftp:

ftp://ftp.rahul.net/ftp/pub/arnold/macapp2ppc.

To get on the mailing list, write to:

arnold@lumina.com

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Bookends 12.8 - Reference management and...
Bookends is a full-featured bibliography/reference and information-management system for students and professionals. Bookends uses the cloud to sync reference libraries on all the Macs you use.... Read more
Apple iTunes 12.6 - Play Apple Music and...
Apple iTunes lets you organize and stream Apple Music, download and watch video and listen to Podcasts. It can automatically download new music, app, and book purchases across all your devices and... Read more
Default Folder X 5.1.4 - 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 on... Read more
Amazon Chime 4.1.5587 - Amazon-based com...
Amazon Chime is a communications service that transforms online meetings with a secure, easy-to-use application that you can trust. Amazon Chime works seamlessly across your devices so that you can... Read more
CrossOver 16.2 - Run Windows apps on you...
CrossOver can get your Windows productivity applications and PC games up and running on your Mac quickly and easily. CrossOver runs the Windows software that you need on Mac at home, in the office,... Read more
Adobe Creative Cloud 4.0.0.185 - Access...
Adobe Creative Cloud costs $19.99/month for a single app, or $49.99/month for the entire suite. Introducing Adobe Creative Cloud desktop applications, including Adobe Photoshop CC and Illustrator CC... Read more
MegaSeg 6.0.2 - Professional DJ and radi...
MegaSeg is a complete solution for pro audio/video DJ mixing, radio automation, and music scheduling with rock-solid performance and an easy-to-use design. Mix with visual waveforms and Magic... Read more
Bookends 12.8 - Reference management and...
Bookends is a full-featured bibliography/reference and information-management system for students and professionals. Bookends uses the cloud to sync reference libraries on all the Macs you use.... Read more
Adobe Creative Cloud 4.0.0.185 - Access...
Adobe Creative Cloud costs $19.99/month for a single app, or $49.99/month for the entire suite. Introducing Adobe Creative Cloud desktop applications, including Adobe Photoshop CC and Illustrator CC... Read more
Default Folder X 5.1.4 - 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 on... Read more

The best deals on the App Store this wee...
Deals, deals, deals. We're all about a good bargain here on 148Apps, and luckily this was another fine week in App Store discounts. There's a big board game sale happening right now, and a few fine indies are still discounted through the weekend.... | Read more »
The best new games we played this week
It's been quite the week, but now that all of that business is out of the way, it's time to hunker down with some of the excellent games that were released over the past few days. There's a fair few to help you relax in your down time or if you're... | Read more »
Orphan Black: The Game (Games)
Orphan Black: The Game 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: Dive into a dark and twisted puzzle-adventure that retells the pivotal events of Orphan Black. | Read more »
The Elder Scrolls: Legends is now availa...
| Read more »
Ticket to Earth beginner's guide: H...
Robot Circus launched Ticket to Earth as part of the App Store's indie games event last week. If you're not quite digging the space operatics Mass Effect: Andromeda is serving up, you'll be pleased to know that there's a surprising alternative on... | Read more »
Leap to victory in Nexx Studios new plat...
You’re always a hop, skip, and a jump away from a fiery death in Temple Jump, a new platformer-cum-endless runner from Nexx Studio. It’s out now on both iOS and Android if you’re an adventurer seeking treasure in a crumbling, pixel-laden temple. | Read more »
Failbetter Games details changes coming...
Sunless Sea, Failbetter Games' dark and gloomy sea explorer, sets sail for the iPad tomorrow. Ahead of the game's launch, Failbetter took to Twitter to discuss what will be different in the mobile version of the game. Many of the changes make... | Read more »
Splish, splash! The Pokémon GO Water Fes...
Niantic is back with a new festival for dedicated Pokémon GO collectors. The Water Festival officially kicks off today at 1 P.M. PDT and runs through March 29. Magikarp, Squirtle, Totodile, and their assorted evolved forms will be appearing at... | Read more »
Death Road to Canada (Games)
Death Road to Canada 1.0 Device: iOS Universal Category: Games Price: $7.99, Version: 1.0 (iTunes) Description: Get it now at the low launch price! Price will go up a dollar every major update. Update news at the bottom of this... | Read more »
Bean's Quest Beginner's Guide:...
Bean's Quest is a new take on both the classic platformer and the endless runner, and it's free on the App Store for the time being. Instead of running constantly, you can't stop jumping. That adds a surprising new level of challenge to the game... | Read more »

Price Scanner via MacPrices.net

2.6GHz Mac mini on sale for $559, $140 off MS...
Guitar Center has the 2.6GHz Mac mini (MGEN2LL/A) on sale for $559 including free shipping. Their price is $140 off MSRP, and it’s the lowest price available for this model. Read more
SSD Speeder RAM Disk SSD Life Extender App Fo...
Fehraltorf, Switzerland based B-Eng has announced they are making their SSD Speeder app for macOS publicly available for purchase on their website. SSD Speeder is a RAM disk utility that prevents... Read more
iPhone Scores Highest Overall in Smartphone D...
Customer satisfaction is much higher among smartphone owners who use their device to operate other connected home services such as smart thermostats and smart appliances, according to the J.D. Power... Read more
Swipe CRM Free Photo-Centric CRM Sales DEal C...
Swipe CRM LLC has introduced Swipe CRM: Visual Sales 1.0 for iPad, an app for creating, managing, and sharing visually stunning sales deals. Swipe CRM is targeted to small-and-medium creative... Read more
13-inch 2.0GHz Apple MacBook Pros on sale for...
B&H has the non-Touch Bar 13″ 2.0GHz MacBook Pros in stock today and on sale for $150 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 13″ 2.0GHz MacBook Pro Space Gray (... Read more
15-inch Touch Bar MacBook Pros on sale for up...
B&H Photo has the new 2016 15″ Apple Touch Bar MacBook Pros in stock today and on sale for up to $150 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 15″ 2.7GHz Touch Bar... Read more
Apple’s iPhone 6s Tops Best-Selling Smartphon...
In terms of shipments, the iPhone 6s from Apple bested all competitors for sales in 2016, according to new analysis from IHS Markit, a world leader in critical information, analytics and solutions.... Read more
Logitech Rugged Combo Protective iPad Case an...
Logitech has announced its Logitech Rugged Combo, Logitech Rugged Case, and Logitech Add-on Keyboard for Rugged Case for Apple’s new, more affordable $329 9.7-inch iPad, a complete solution designed... Read more
T-Mobile To Offer iPhone 7 and iPhone 7 Plus...
T-Mobile has announced it will offer iPhone 7 and iPhone 7 Plus (PRODUCT)RED Special Edition in a vibrant red aluminum finish. The introduction of this special edition iPhone celebrates Apple’s 10... Read more
9-inch 128GB iPad Pros on sale for $50-$70 of...
B&H Photo has 9.7″ 128GB Apple WiFi iPad Pros on sale for up to $70 off MSRP, each including free shipping. B&H charges sales tax in NY only: - 9″ Space Gray 128GB WiFi iPad Pro: $649 $50... Read more

Jobs Board

*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
Fulltime aan de slag als shopmanager in een h...
Ben jij helemaal gek van Apple -producten en vind je het helemaal super om fulltime shopmanager te zijn in een jonge en hippe elektronicazaak? Wil jij werken in Read more
Starte Dein Karriere-Abenteuer in den Hauptst...
…mehrsprachigen Teams betreust Du Kunden von bekannten globale Marken wie Apple , Mercedes, Facebook, Expedia, und vielen anderen! Funktion Du wolltest schon Read more
*Apple* Retail - Multiple Positions- Chicago...
SalesSpecialist - Retail Customer Service and SalesTransform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
Fulltime aan de slag als shopmanager in een h...
Ben jij helemaal gek van Apple -producten en vind je het helemaal super om fulltime shopmanager te zijn in een jonge en hippe elektronicazaak? Wil jij werken in Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.