TweetFollow Us on Twitter

Jul 00 Factory Floor

Volume Number: 16 (2000)
Issue Number: 7
Column Tag: From the Factory Floor

Arnold goes to WWDC

By Richard Atwell, ©2000 by Metrowerks, Inc., all rights reserved

Another Worldwide Developer's Conference (WWDC) hosted by Apple has come and gone and once again Metrowerks was there in person to meet with you, listen to your feedback and converse about the future of CodeWarrior.

This year we sent more engineers than in previous years, which was fortunate because attendance this year was at record levels and we would have been swamped due to the excitement built around the upcoming Mac OS X.

We were present in the exhibit hall for the first two days it was open, as we were last year, and we gave out thousands of copies of a special WWDC CD containing a beta version of new CodeWarrior tools for Mac OS X. Those tools will become part of CodeWarrior for Mac OS, Version 6.0. By the time this article hits the stands, the CD will have expired and Version 6.0 will be very close to shipping, if it hasn't shipped already.

Last year we had a single keynote event to talk about the current state of CodeWarrior, but this year, in addition to our booth in the exhibit hall, we hosted and attended several sessions.

Here's an overview of what went down in case you missed it.

Session: Mac OS X THIRD Party Tools

Presenter: Berardino Baratta,

Vice President of Software Engineering

After Real Basic demonstrated their latest offering (written using CodeWarrior, by the way) Berardino gave his CodeWarrior state of the union address and showed off the latest IDE (IDE 4.1) that will ship with Version 6.0.

The IDE has been fully Carbonized, as have our support libraries, PowerPlant and other development tools like Constructor and Profiler. This is our Carbon release for Mac OS X developers and the basis for Metrowerks' future development on the Mac OS platform.

When running on Mac OS X, the IDE exhibits the attractive new Aqua interface. It's interesting to note that the IDE itself is written with CodeWarrior using PowerPlant, so your applications will look "Aquafied" if you use PowerPlant as the framework on which to base your application.

At the end of his session, Berardino answered many questions from the audience. Of note, attendees asked about Pascal support. Metrowerks didn't ship Pascal tools and support libraries for CodeWarrior for Mac OS, Version 5.0 — the first time in several releases that we had not. At the time, however, we made a promise to deliver those tools at a later date. Berardino reiterated that promise to update our Pascal tools, which will be based on Version 6.0 and which will ship one last time shortly after Version 6.0 ships.

Version 6.0 will also be the last release to support 68K code generation since Mac OS X only runs on recent PowerPC-based Macs. The demand for generating fat binaries has dropped dramatically and Berardino stated that after Version 6.0 those tools will be put into maintenance mode and decisions about availability will be made at a future date.

The other popular question was when is Metrowerks going to deliver Mach-O tools? First, the Version 6.0 CD will contain our latest Mach-O plugins in pre-release form. We will also provide a command line compiler to substitute for the GCC compiler that ships with Mac OS X. We will follow that with support for debugging Mach-O binaries, which contain stabs symbolics that run on Mac OS X.

The BoF (Birds of a Feather)

Presenters: Tim Freehill, Director of Desktop Products and Matt Henderson, Mac OS X Technical Lead

This session was our "Birds of a Feather" session. The theme was "CodeWarrior is now rated X". We gave away more beta CDs, threw t-shirts into the audience and raffled off a new Powerbook — so naturally a riot broke out.

Tim was emcee for the evening and introduced Matt, who ran through a demonstration of the latest tools.

Our engineers took questions from the audience and after we ran out of shirts and beta CDs we drew the winning entry for the Powerbook. Congratulations to the winner: Mark Nelson from the Vancouver Film School. We also gave away five three-year subscriptions to CodeWarrior.

Session: Tuning for MP and Velocity Engine

Presenters: Bob Campbell, PPC Compiler Lead,

Ken Ryall, Debugger Lead Engineer and

Richard Atwell, Mac OS Debugger Engineer

Velocity Engine is Apple's name for the AltiVec unit that is integrated into the Motorola PowerPC 7400 that ships in every PowerMac G4. Bob opened the session with an explanation of vectorization tips that CodeWarriors need to consider when writing AltiVec code.

Bob talked about data alignment issues, which affect performance and correctness. Many of these concerns are taken care of by using our MSL and runtime libraries, but data alignment is always an important consideration since the AltiVec unit works best with chunks of 16-byte aligned data.

Bob went on to explain some features of the AltiVec instruction set and ran through a demo of some AltiVec enhanced code. The results were compelling: a scalar image rotation routine that was highly optimized as scalar code processed approximately four mega-pixels per second. The AltiVec version using "all the tricks" benchmarked at 25 mega-pixels per second.

Afterwards, I demonstrated the features of the debugger that support AltiVec. CodeWarrior displays the individual scalar elements of each vector just as the fields of C structures are disclosed. To aid with debugging, all elements are editable and are highlighted in red when the values change.

To support vector editing at the register level, there is a new resizable register window that allows you to edit vectors in registers as more manageable 32-bit values. Values can be viewed as hex or floating point. Just like the variable view, as scalars are updated they are highlighted in red to show you how the register changed.

Finally, I demonstrated support for expression evaluation using scalar elements and showed how a conditional breakpoint could set on a portion of a vector register using the vector.[scalar] notation that we invented for this purpose. See the From the Factory Floor column on AltiVec from last year (MacTech Magazine - July, 1999) for a complete description of AltiVec support in CodeWarrior.

Next I presented the multiprocessing (MP) portion of the session. I took the CloseViewMP sample application from the Multiprocessing 2.1 SDK and debugged it using the beta tools for Mac OS X. The CloseViewMP code makes a good demo because it's visual: the application creates an MP task that continuously draws in a window whether you are holding down menus or moving windows which would normally halt any live updating in the UI. The window of course runs in the cooperative task.

Debugger support for MP 2.x exists in the Process window that shows you the list of cooperative threads and MP tasks belonging to each application. Debugging windows appear for each thread or task that generates an exception, such as hitting a breakpoint. Just like separate threads, you can step through code at any time independent of the state of other threads or tasks. Finally, register windows for all three register files (GPR, FPR and AltiVec) are available for each thread or task and, to aid with navigation, the window titles indicate which is which.

Session: Debugging Apps on Mac OS X

Presenter: Ken Ryall, Lead Debugger Engineer

This session began with a few demos from Apple and Ken followed with a demonstration of single machine debugging using the IDE 4.1.

In Version 5.0 we shipped an early remote debugger for Mac OS X. This consisted of the IDE 4.0, it's preference panels and debugging plugins, all of which allowed you to remotely debug Carbon-PEF based applications running on Mac OS X from an IDE hosting machine running Mac OS 9. The other piece of the debugging technology consisted of a resident debugging nub, such as MetroNub, that the IDE uses to control processes on the target machine.

Ken demonstrated how to debug a carbonized PowerPlant sample application from Mac OS X. With this level of support, it's possible to debug any combination of Mac OS X and Mac OS 9 machines.

Taking things a step further, Ken showed a new set of panels for remote debug settings. A new remote connections panel allows developers to define any set of remote TCP/IP connections much like an address book. This change allows the IDE to debug remotely or locally at the target level instead of running the IDE in one mode or the other.

Additional target settings panels allow you to choose which remote connection you'd like to use and allow you to specify the remote folder where you'd like to debug the target. The panels also let you choose the location of the remote host application that will host the shared libraries you'd like to debug. We also demonstrated upcoming support to allow you to move support files to the machine under remote control.

See 'Ya

Well that's it for this WWDC. See you next year. As always, visit our newsgroup or send us email directly.


Richard Alexander David Atwell, a.k.a. "ratwell," works on Metrowerks' CodeWarrior integrated debugger at the company's Austin-based headquarters. Richard welcomes your feedback and questions on any topic. You can reach him at ratwell@metrowerks.com.

 
AAPL
$111.78
Apple Inc.
-0.87
MSFT
$47.66
Microsoft Corpora
+0.14
GOOG
$516.35
Google Inc.
+5.25

MacTech Search:
Community Search:

Software Updates via MacUpdate

NeoOffice 2014.6 - Mac-tailored, OpenOff...
NeoOffice is a complete office suite for OS X. With NeoOffice, users can view, edit, and save OpenOffice documents, PDF files, and most Microsoft Word, Excel, and PowerPoint documents. NeoOffice 3.x... Read more
LibreOffice 4.3.5.2 - Free Open Source o...
LibreOffice is an office suite (word processor, spreadsheet, presentations, drawing tool) compatible with other major office suites. The Document Foundation is coordinating development and... Read more
CleanApp 5.0.0 Beta 5 - Application dein...
CleanApp is an application deinstaller and archiver.... Your hard drive gets fuller day by day, but do you know why? CleanApp 5 provides you with insights how to reclaim disk space. There are... Read more
Monolingual 1.6.2 - Remove unwanted OS X...
Monolingual is a program for removing unnecesary language resources from OS X, in order to reclaim several hundred megabytes of disk space. It requires a 64-bit capable Intel-based Mac and at least... Read more
NetShade 6.1 - Browse privately using an...
NetShade is an Internet security tool that conceals your IP address on the web. NetShade routes your Web connection through either a public anonymous proxy server, or one of NetShade's own dedicated... Read more
calibre 2.13 - Complete e-library manage...
Calibre is a complete e-book library manager. Organize your collection, convert your books to multiple formats, and sync with all of your devices. Let Calibre be your multi-tasking digital librarian... Read more
Mellel 3.3.7 - Powerful word processor w...
Mellel is the leading word processor for OS X and has been widely considered the industry standard since its inception. Mellel focuses on writers and scholars for technical writing and multilingual... Read more
ScreenFlow 5.0.1 - Create screen recordi...
Save 10% with the exclusive MacUpdate coupon code: AFMacUpdate10 Buy now! ScreenFlow is powerful, easy-to-use screencasting software for the Mac. With ScreenFlow you can record the contents of your... Read more
Simon 4.0 - Monitor changes and crashes...
Simon monitors websites and alerts you of crashes and changes. Select pages to monitor, choose your alert options, and customize your settings. Simon does the rest. Keep a watchful eye on your... Read more
BBEdit 11.0.2 - Powerful text and HTML e...
BBEdit is the leading professional HTML and text editor for the Mac. Specifically crafted in response to the needs of Web authors and software developers, this award-winning product provides a... Read more

Latest Forum Discussions

See All

Make your own Tribez Figures (and More)...
Make your own Tribez Figures (and More) with Toyze Posted by Jessica Fisher on December 19th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
So Many Holiday iOS Sales Oh My Goodness...
The holiday season is in full-swing, which means a whole lot of iOS apps and games are going on sale. A bunch already have, in fact. Naturally this means we’re putting together a hand-picked list of the best discounts and sales we can find in order... | Read more »
It’s Bird vs. Bird in the New PvP Mode f...
It’s Bird vs. Bird in the New PvP Mode for Angry Birds Epic Posted by Jessica Fisher on December 19th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Telltale Games and Mojang Announce Minec...
Telltale Games and Mojang Announce Minecraft: Story Mode – A Telltale Games Series Posted by Jessica Fisher on December 19th, 2014 [ permalink ] | Read more »
WarChest and Splash Damage Annouce Their...
WarChest and Splash Damage Annouce Their New Game: Tempo Posted by Jessica Fisher on December 19th, 2014 [ permalink ] WarChest Ltd and Splash Damage Ltd are teaming up again to work | Read more »
BulkyPix Celebrates its 6th Anniversary...
BulkyPix Celebrates its 6th Anniversary with a Bunch of Free Games Posted by Jessica Fisher on December 19th, 2014 [ permalink ] BulkyPix has | Read more »
Indulge in Japanese cuisine in Cooking F...
Indulge in Japanese cuisine in Cooking Fever’s new sushi-themed update Posted by Simon Reed on December 19th, 2014 [ permalink ] Lithuanian developer Nordcurrent has yet again updated its restaurant simulat | Read more »
Badland Daydream Level Pack Arrives to C...
Badland Daydream Level Pack Arrives to Celebrate 20 Million Downloads Posted by Ellis Spice on December 19th, 2014 [ permalink ] | Read more »
Far Cry 4, Assassin’s Creed Unity, Desti...
Far Cry 4, Assassin’s Creed Unity, Destiny, and Beyond – AppSpy Takes a Look at AAA Companion Apps Posted by Rob Rich on December 19th, 2014 [ permalink ] These day | Read more »
A Bunch of Halfbrick Games Are Going Fre...
A Bunch of Halfbrick Games Are Going Free for the Holidays Posted by Ellis Spice on December 19th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »

Price Scanner via MacPrices.net

13-inch 2.6GHz Retina MacBook Pro on sale for...
Best Buy has lowered their price on the 2014 13″ 2.6GHz/128GB Retina MacBook Pro to $1149.99 on their online store for a limited time. That’s $150 off MSRP and the lowest price available for this... Read more
Kodak Returns to CES With New Consumer Produ...
Former photography colossus Kodak is returning to CES for the first time in three years where the Kodak booth (#21818 South Hall 1) will showcase a wide range of innovative, imaging-related products... Read more
Invaluable Launches New Eponymously -Named A...
Invaluable, the world’s largest online live auction marketplace, hhas announced the official launch of the Invaluable app for iPad, now available for download in the iTunes App Store. Invaluable... Read more
IDC Reveals Worldwide Mobile Enterprise Appli...
International Data Corporation (IDC) last week hosted the IDC FutureScape: Worldwide Mobile Enterprise Applications and Solutions 2015 Predictions Web conference. The session provided organizations... Read more
Hello Vino Wine App Launches “Safe Ride Home”...
Hello Vino has announced addition of a new “Get a Safe Ride Home” feature in its Food & Drink app with a direct connection to Uber, the technology platform that connects users with rides. The... Read more
DEVON-technologies Releases DEVONthink To Go...
Coeur d’Alene, Idaho based DEVON-technologies, LLC has updated DEVONthink To Go, its mobile companion to DEVONthink, to version 1.5. The update includes an iOS 8 extension, compatibility with the... Read more
The Apple Store offering free next-day shippi...
The Apple Store is now offering free next-day shipping on all in stock items if ordered before 12/23/14 at 10:00am PT. Local store pickup is also available within an hour of ordering for any in stock... Read more
It’s 1992 Again At Sony Pictures, Except For...
Techcrunch’s John Biggs interviewed a Sony Pictures Entertainment (SPE) employee, who quite understandably wished to remain anonymous, regarding post-hack conditions in SPE’s L.A office, explaining “... Read more
OtterBox Defender Series Case For iPad mini 3...
With their innovative Touch ID technology and ultrathin profile, the latest tranche of Apple iPads are more desirable than ever, and OtterBox has just announced the Defender Series custom-engineered... Read more
Holiday sales this weekend: MacBook Pros for...
 B&H Photo has new MacBook Pros on sale for up to $300 off MSRP as part of their Holiday pricing. Shipping is free, and B&H charges NY sales tax only: - 15″ 2.2GHz Retina MacBook Pro: $1699... Read more

Jobs Board

*Apple* Store Leader Program (US) - Apple, I...
…Summary Learn and grow as you explore the art of leadership at the Apple Store. You'll master our retail business inside and out through training, hands-on experience, Read more
Project Manager, *Apple* Financial Services...
**Job Summary** Apple Financial Services (AFS) offers consumers, businesses and educational institutions ways to finance Apple purchases. We work with national and Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.