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.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Mellel 3.5.5 - The word processor for sc...
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
Bookends 12.8.3 - Reference management a...
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
Carbon Copy Cloner 4.1.18 - Easy-to-use...
Carbon Copy Cloner backups are better than ordinary backups. Suppose the unthinkable happens while you're under deadline to finish a project: your Mac is unresponsive and all you hear is an ominous,... Read more
Hopper Disassembler 4.2.14- - Binary dis...
Hopper Disassembler is a binary disassembler, decompiler, and debugger for 32- and 64-bit executables. It will let you disassemble any binary you want, and provide you all the information about its... Read more
BetterTouchTool 2.291 - Customize Multi-...
BetterTouchTool adds many new, fully customizable gestures to the Magic Mouse, Multi-Touch MacBook trackpad, and Magic Trackpad. These gestures are customizable: Magic Mouse: Pinch in / out (zoom... Read more
Sound Studio 4.8.11 - Robust audio recor...
Sound Studio lets you easily record and professionally edit audio on your Mac. Easily rip vinyls and digitize cassette tapes, or record lectures and voice memos. Prepare for live shows with live... Read more
Sound Studio 4.8.11 - Robust audio recor...
Sound Studio lets you easily record and professionally edit audio on your Mac. Easily rip vinyls and digitize cassette tapes, or record lectures and voice memos. Prepare for live shows with live... Read more
BetterTouchTool 2.291 - Customize Multi-...
BetterTouchTool adds many new, fully customizable gestures to the Magic Mouse, Multi-Touch MacBook trackpad, and Magic Trackpad. These gestures are customizable: Magic Mouse: Pinch in / out (zoom... Read more
Carbon Copy Cloner 4.1.18 - Easy-to-use...
Carbon Copy Cloner backups are better than ordinary backups. Suppose the unthinkable happens while you're under deadline to finish a project: your Mac is unresponsive and all you hear is an ominous,... Read more
Hopper Disassembler 4.2.14- - Binary dis...
Hopper Disassembler is a binary disassembler, decompiler, and debugger for 32- and 64-bit executables. It will let you disassemble any binary you want, and provide you all the information about its... Read more

The best 2v2 card combos in Clash Royale
2v2 is making it's grand return toClash Royalequite soon. 2v2 has quickly become one of the game's most popular gameplay modes, though they still have yet to make it a permanent fixture in the game. 2v2 is exciting and adds some new flavor to... | Read more »
The best games we played this week - Aug...
Another busy week has come to a close. We played a lot of excellent games this week and now it's time to look back and reflect on some our favorites. Here are our picks for the week of August 18. [Read more] | Read more »
War Wings beginner's guide - how to...
War Wings is the newest project from well-established game maker Miniclip. It's a World War II aerial dogfighting game with loads of different airplane models to unlock and battle. The game offers plenty of single player and multiplayer action. We... | Read more »
How to win every 2v2 battle in Clash Roy...
2v2 is coming back to Clash Royale in a big way. Although it's only been available for temporary periods of time, 2v2 has seen a hugely positive fan response, with players clamoring for more team-based gameplay. Soon we'll get yet another taste of... | Read more »
Roll to Win with Game of Dice’s new upda...
Joycity’s hit Game of Dice gets a big new update this week, introducing new maps, mechanics, and even costumes. The update sets players loose on an exciting new map, The Cursed Tower, that allows folks to use special Runes mid-match. If you feel... | Read more »
Bottom of the 9th (Games)
Bottom of the 9th 1.0.1 Device: iOS iPhone Category: Games Price: $4.99, Version: 1.0.1 (iTunes) Description: Play the most exciting moment of baseball in this fast-paced dice and card game! | Read more »
The best apps for viewing the solar ecli...
If you somehow missed the news, many parts of the United States will be witness to a total solar eclipse on August 21 for the first time in over 90 years. It'll be possible to see the eclipse in at least some capacity throughout the continental U... | Read more »
The 5 best mobile survival games
Games like ARK: Survival Evolved and Conan Exiles have taken the world of gaming by storm. The market is now flooded with hardcore survival games that send players off into the game's world with nothing but maybe the clothes on their back. Never... | Read more »
Portal Walk (Games)
Portal Walk 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Portal Walk is adventure and relaxing platform game about Eugene. Eugene stuck between worlds and trying to find way back home.... | Read more »
Technobabylon (Games)
Technobabylon 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: City of Newton, 2087. Genetic engineering is the norm, the addictive Trance has replaced almost any need for human interaction,... | Read more »

Price Scanner via MacPrices.net

15-inch 2.2GHz Retina MacBook Pro, Apple refu...
Apple has Certified Refurbished 2015 15″ 2.2GHz Retina MacBook Pros available for $1699. That’s $300 off MSRP, and it’s the lowest price available for a 15″ MacBook Pro. An Apple one-year warranty is... Read more
Apple refurbished Mac minis available startin...
Apple has Certified Refurbished Mac minis available starting at $419. Apple’s one-year warranty is included with each mini, and shipping is free: – 1.4GHz Mac mini: $419 $80 off MSRP – 2.6GHz Mac... Read more
Apple refurbished iPad Pros available startin...
Apple has Certified Refurbished 2016 12″ WiFi iPad Pros available starting at $589. An Apple one-year warranty is included with each model, and shipping is free: – 32GB 12″ iPad Pro WiFi: $589... Read more
Weekend sale: 13-inch MacBook Pros for up to...
Amazon has new 2017 13″ MacBook Pros on sale today for up to $200 off MSRP, each including free shipping: – 13″ 3.1GHz/256GB Space Gray MacBook Pro (MPXV2LL/A): $1599.99 $200 off MSRP – 13″ 3.1GHz/... Read more
Back To School With The Edge Desk All-in-one...
Back to school is just around the corner, and the ergonomically correct Edge Desk all-in-one portable kneeling desk is ideal for students living in dorms and small apartments, Edge Desk features:... Read more
Norton Core Secure Wi-Fi Router Now Available...
First introduced at the 2017 Consumer Electronics Show (CES), Norton Core, a secure, high-performance Wi-Fi router, fundamentally changed the concept of Wi-Fi routers by making security the primary... Read more
ViewSonic Adds New 27-inch 4K UHD Monitor to...
ViewSonic Corp. has introduced the VP2785-4K, a 27-inch 4K UHD (3840×2160) monitor that delivers precise and consistent color representation and performance to ensure incredible image quality. Built... Read more
Apple now offering Certified Refurbished 2017...
Apple is now offering Certified Refurbished 2017 27″ iMacs for up to $350 off original MSRP. Apple’s one-year warranty is standard, and shipping is free. The following models are available: – 27″ 3.... Read more
13-inch 2.3GHz MacBook Pros on sale for $100...
Amazon has the new 2017 13″ 2.3GHz MacBook Pros on sale today for $100 off MSRP, each including free shipping: – 13″ 2.3GHz/128GB Space Gray MacBook Pro (MPXQ2LL/A): $1199.99 $100 off MSRP – 13″ 2.... Read more
Clearance 2016 13-inch MacBook Airs available...
B&H Photo has clearance 2016 13″ MacBook Airs available for up to $200 off original MSRP. Shipping is free, and B&H charges NY & NJ sales tax only: – 13″ 1.6GHz/128GB MacBook Air (MMGF2LL... Read more

Jobs Board

Development Operations and Site Reliability E...
Development Operations and Site Reliability Engineer, Apple Payment Gateway Job Number: 57572631 Santa Clara Valley, California, United States Posted: Jul. 27, 2017 Read more
Frameworks Engineering Manager, *Apple* Wat...
Frameworks Engineering Manager, Apple Watch Job Number: 41632321 Santa Clara Valley, California, United States Posted: Jun. 15, 2017 Weekly Hours: 40.00 Job Summary Read more
Map Quality Analyst Lead, *Apple* Maps Eval...
…a team of subject matter experts measuring the quality of a range of Apple Maps algorithms, such as Map search, recommendations, and routing. Our group works with Read more
Business Development Manager, *Apple* Pay -...
Job Summary Apple Pay is seeking an experienced Business Development professional to join the Apple Pay team to develop partnerships and strategic alliances with Read more
Information Systems Engineer, *Apple* Retai...
Job Summary Do you have a passion for the technology and systems that make Apple amazing? Are you interested in joining IS&T Retail on what they do best? This is an Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.