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
$102.50
Apple Inc.
+0.25
MSFT
$45.43
Microsoft Corpora
+0.55
GOOG
$571.60
Google Inc.
+2.40

MacTech Search:
Community Search:

Software Updates via MacUpdate

VueScan 9.4.41 - Scanner software with a...
VueScan is a scanning program that works with most high-quality flatbed and film scanners to produce scans that have excellent color fidelity and color balance. VueScan is easy to use, and has... Read more
Cloud 3.0.0 - File sharing from your men...
Cloud is simple file sharing for the Mac. Drag a file from your Mac to the CloudApp icon in the menubar and we take care of the rest. A link to the file will automatically be copied to your clipboard... Read more
LibreOffice 4.3.1.2 - 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
SlingPlayer Plugin 3.3.20.505 - Browser...
SlingPlayer is the screen interface software that works hand-in-hand with the hardware inside the Slingbox to make your TV viewing experience just like that at home. It features an array of... Read more
Get Lyrical 3.8 - Auto-magically adds ly...
Get Lyrical auto-magically add lyrics to songs in iTunes. You can choose either a selection of tracks, or the current track. Or turn on "Active Tagging" to get lyrics for songs as you play them.... Read more
Viber 4.2.2 - Send messages and make cal...
Viber lets you send free messages and make free calls to other Viber users, on any device and network, in any country! Viber syncs your contacts, messages and call history with your mobile device,... Read more
Cocktail 7.6 - General maintenance and o...
Cocktail is a general purpose utility for OS X that lets you clean, repair and optimize your Mac. It is a powerful digital toolset that helps hundreds of thousands of Mac users around the world get... Read more
LaunchBar 6.1 - Powerful file/URL/email...
LaunchBar is an award-winning productivity utility that offers an amazingly intuitive and efficient way to search and access any kind of information stored on your computer or on the Web. It provides... Read more
Maya 2015 - Professional 3D modeling and...
Maya is an award-winning software and powerful, integrated 3D modeling, animation, visual effects, and rendering solution. Because Maya is based on an open architecture, all your work can be scripted... Read more
BBEdit 10.5.12 - Powerful text and HTML...
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

Qube Kingdom – Tips, Tricks, Strategies,...
Qube Kingdom is a tower defense game from DeNA. You rally your troops – magicians, archers, knights, barbarians, and others – and fight against an evil menace looking to dominate your kingdom of tiny squares. Planning a war isn’t easy, so here are a... | Read more »
Qube Kingdom Review
Qube Kingdom Review By Nadia Oxford on August 29th, 2014 Our Rating: :: KIND OF A SQUARE KINGDOMUniversal App - Designed for iPhone and iPad Qube Kingdom has cute visuals, but it’s a pretty basic tower defense game at heart.   | Read more »
Fire in the Hole Review
Fire in the Hole Review By Rob Thomas on August 29th, 2014 Our Rating: :: WALK THE PLANKUniversal App - Designed for iPhone and iPad Seafoam’s Fire in the Hole looks like a bright, 8-bit throwback, but there’s not enough booty to... | Read more »
Alien Creeps TD is Now Available Worldwi...
Alien Creeps TD is Now Available Worldwide Posted by Ellis Spice on August 29th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Dodo Master Review
Dodo Master Review By Jordan Minor on August 29th, 2014 Our Rating: :: NEST EGGiPad Only App - Designed for the iPad Dodo Master is tough but fair, and that’s what makes it a joy to play.   | Read more »
Motorsport Manager Review
Motorsport Manager Review By Lee Hamlet on August 29th, 2014 Our Rating: :: MARVELOUS MANAGEMENTUniversal App - Designed for iPhone and iPad Despite its depth and sense of tactical freedom, Motorsport Manager is one of the most... | Read more »
Motorsport Manager – Beginner Tips, Tric...
The world of Motorsport management can be an unforgiving and merciless one, so to help with some of the stress that comes with running a successful race team, here are a few hints and tips to leave your opponents in the dust. | Read more »
CalPal Update Brings the App to 2.0, Add...
CalPal Update Brings the App to 2.0, Adds Lots of New Stuff Posted by Ellis Spice on August 29th, 2014 [ permalink ] | Read more »
Baseball Battle Review
Baseball Battle Review By Jennifer Allen on August 29th, 2014 Our Rating: :: SIMPLE HITTINGUniversal App - Designed for iPhone and iPad Simple and cute, Baseball Battle is a fairly fun baseball game for those looking for something... | Read more »
Checkmark 2.1 Update Released, and it’s...
Checkmark 2.1 Update Released, and it’s on Sale for a Limited Time Posted by Jessica Fisher on August 29th, 2014 [ permalink ] | Read more »

Price Scanner via MacPrices.net

Labor Day Weekend iPad mini sale; $50 to $100...
Best Buy has the iPad mini with Retina Display (WiFi models) on sale for $50 off MSRP on their online store for Labor Day Weekend. Choose free shipping or free local store pick up. Price is for... Read more
13-inch 1.4GHz MacBook Air on sale for $899,...
Adorama has the new 2014 13″ 1.4GHz/128GB MacBook Air on sale for $899.99 including free shipping plus NY & NJ tax only. Their price is $100 off MSRP. Read more
It’s Official: Apple Issues Invitations To Se...
Apple has issued one of its characteristically cryptic press invitations for a special event to be held at the Flint Center for the Performing Arts in hometown Cupertino on Sept. 9, 2014 at 10:00 am... Read more
Tablet Shipments To See First On-year Decline...
TrendForce analyst Caroline Chen notes that when the iPad launched in 2010, it was an instant hit and spurred a tablet PC revolution, with tablets so popular that that notebook PC sales stagnated and... Read more
SOBERLINK Releases Apple iOS Compatible Handh...
Cypress, California based SOBERLINK, Inc., creator of the first handheld Breathalyzer designed to improve recovery outcomes, continues to show prominence in the mobile alcohol monitoring space with... Read more
New 21″ 1.4GHz iMac on sale again for $999, s...
Best Buy has the new 21″ 1.4GHz iMac on sale for $999.99 on their online store. Their price is $100 off MSRP. Choose free shipping or free local store pick up. Price is for online orders only, in-... Read more
Smartphone Outlook Remains Strong for 2014, U...
According to a new mobile phone forecast from the International Data Corporation (IDC) Worldwide Quarterly Mobile Phone Tracker, more than 1.25 billion smartphones will be shipped worldwide in 2014,... Read more
Save up to $60 with Apple refurbished iPod to...
The Apple Store has Apple Certified Refurbished 5th generation iPod touches available starting at $149. Apple’s one-year warranty is included with each model, and shipping is free. Many, but not all... Read more
12-Inch MacBook Air Coming in 4Q14 or 2015 –...
Digitimes’ Aaron Lee and Joseph Tsai report that according to Taiwan-based upstream supply chain insiders, Apple plans to launch a thinner MacBook model either at year end 2014 or in 2015, and that... Read more
Sapphire Screen “Most Wanted” iPhone 6 New Fe...
According to the ‘uSell.com iPhone Most Wanted Survey’ — a representative survey of 1,000 U.S. smartphone users conducted by used iPhone marketplace uSell.com — close to half of all smartphone users... Read more

Jobs Board

*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...
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
Senior Event Manager, *Apple* Retail Market...
…This senior level position is responsible for leading and imagining the Apple Retail Team's global event strategy. Delivering an overarching brand story; in-store, Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.