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

Slack 2.5.1 - Collaborative communicatio...
Slack is a collaborative communication app that simplifies real-time messaging, archiving, and search for modern working teams. Version 2.5.1: New The way we load teams you don't view often has been... Read more
HandBrake 1.0.3 - Versatile video encode...
HandBrake is a tool for converting video from nearly any format to a selection of modern, widely supported codecs. Features Supported Sources VIDEO_TS folder, DVD image or real DVD (unencrypted... Read more
Vivaldi 1.7.735.46 - An advanced browser...
Vivaldi is a browser for our friends. In 1994, two programmers started working on a web browser. Our idea was to make a really fast browser, capable of running on limited hardware, keeping in mind... Read more
Vivaldi 1.7.735.46 - An advanced browser...
Vivaldi is a browser for our friends. In 1994, two programmers started working on a web browser. Our idea was to make a really fast browser, capable of running on limited hardware, keeping in mind... Read more
HandBrake 1.0.3 - Versatile video encode...
HandBrake is a tool for converting video from nearly any format to a selection of modern, widely supported codecs. Features Supported Sources VIDEO_TS folder, DVD image or real DVD (unencrypted... Read more
Slack 2.5.1 - Collaborative communicatio...
Slack is a collaborative communication app that simplifies real-time messaging, archiving, and search for modern working teams. Version 2.5.1: New The way we load teams you don't view often has been... Read more
BBEdit 11.6.4 - 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
BBEdit 11.6.4 - 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
beaTunes 4.6.12 - Organize your music co...
beaTunes is a full-featured music player and organizational tool for music collections. How well organized is your music Library? Are your artists always spelled the same way? Any R.E.M. vs REM?... Read more
Tinderbox 7.0.1 - Store and organize you...
Tinderbox is a personal content management assistant. It stores your notes, ideas, and plans. It can help you organize and understand them. And Tinderbox helps you share ideas through Web journals... Read more

The best sales on the App Store this wee...
The App Store has quite an exciting lineup of discount games this week that range across a variety of genres. It's a great opportunity to catch up on some of the premium games you may have been holding off on -- and some you can even grab for free... | Read more »
The best new games we played this week
Ah, here we are again at the close of another busy week. Don't rest too easy, though. We had a lot of great new releases in mobile games this week, and now you're going to have to spend all weekend playing them. That shouldn't be too much of a... | Read more »
Rollercoaster Tycoon Touch Guide: How to...
| Read more »
Rabbids Crazy Rush Guide: How to unlock...
The Rabbids are back in a new endless running adventure, Rabbids Crazy Rush. It's more ridiculous cartoon craziness as you help the little furballs gather enough fuel (soda) to get to the moon. Sure, it's a silly idea, but everyone has dreams --... | Read more »
Tavern Guardians (Games)
Tavern Guardians 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: Tavern Guardians is a Hack-and-Slash action game played in the style of a match-three. You can experience high pace action... | Read more »
Slay your way to glory in idle RPG Endle...
It’s a golden age for idle games on the mobile market, and those addictive little clickers have a new best friend. South Korean developer Ekkorr released Endless Frontier last year, and players have been idling away the hours in the company of its... | Read more »
Tiny Striker: World Football Guide - How...
| Read more »
Good news everyone! Futurama: Worlds of...
Futurama is finding a new home on mobile in TinyCo and Fox Interactive's new game, Futurama: Worlds of Tomorrow. They're really doing it up, bringing on board Futurama creator Matt Groening along with the original cast and writers. TinyCo wants... | Read more »
MUL.MASH.TAB.BA.GAL.GAL (Games)
MUL.MASH.TAB.BA.GAL.GAL 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: ENDLESS UPGRADES. CONSTANT DANGER. ANCIENT WISDOM. BOUNCY BALLS. Launch Sale, 40% OFF for a very limited time!!! MUL.... | Read more »
Dungeon Rushers (Games)
Dungeon Rushers 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: Dungeon Rushers is a 2D tactical RPG combining dungeon crawler’s gameplay and turn based fights. Manage your team, loot dusty... | Read more »

Price Scanner via MacPrices.net

12-inch 1.2GHz Retina MacBooks on sale for $2...
Newegg has the 12″ 1.2GHz Space Gray Retina MacBook (sku MLH82LL/A) on sale for $1349.99 including free shipping. Their price is $250 off MSRP, and it’s the lowest price available for this model.... Read more
13-inch MacBook Airs on sale for $100 off MSR...
B&H Photo has 13″ MacBook Airs on sale for $100 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 13″ 1.6GHz/128GB MacBook Air (MMGF2LL/A): $899 $100 off MSRP - 13″ 1.6GHz/... Read more
9-inch 32GB Silver iPad Pro on sale for $549,...
B&H Photo has the 9.7″ 32GB Silver Apple iPad Pro on sale for $549 for a limited time. Shipping is free, and B&H charges NY sales tax only. Their price is $50 off standard MSRP for this model... 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 $100 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
12-inch Retina MacBooks on sale for $1150, $1...
B&H has 12″ 1.1GHz Retina MacBooks on sale for $150 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 12″ 1.1GHz Space Gray Retina MacBook: $1149 $150 off MSRP - 12″ 1.1GHz... Read more
Apple restocks refurbished 11-inch MacBook Ai...
Apple has Certified Refurbished 11″ MacBook Airs (the latest models recently discontinued by Apple), available for up to $170 off original MSRP. An Apple one-year warranty is included with each... Read more
Apple Park Opens to Employees in April With T...
Apple has announced that Apple Park, the company’s new 175-acre campus, will be ready for employees to begin occupying in April. The process of moving more than 12,000 people will take over six... Read more
Manhattan Neighbors for Safer Telecommunicati...
A new education and advocacy group focused on cell phone and wireless risks, Manhattan Neighbors for Safer Telecommunications, launched today at http://www.ManhattanNeighbors.org. Manhattan... Read more
Portable Dual DisplayPort Monitor Dock Enable...
IOGEAR has announced the launch of its USB-C Dual DisplayPort Monitor Portable Dock (GUC3CMST). The dock enables users to easily connect two DisplayPort monitors to a USB-C or Thunderbolt 3 laptop to... Read more

Jobs Board

*Apple* Wireless Lead - T-ROC - The Retail O...
…of knowledge in wireless sales and activations to the Beautiful and NEW APPLE Experiencestore within MACYS. THIS role, APPLE Wireless Lead, isbrandnewas MACYS Read more
Manager *Apple* Systems Administration - Pu...
Req ID 3315BR Position Title Manager, Apple Systems Administration Job Description The Manager of Apple Systems Administration oversees the administration and 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- 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
Manager *Apple* Systems Administration - Pu...
Req ID 3315BR Position Title Manager, Apple Systems Administration Job Description The Manager of Apple Systems Administration oversees the administration and Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.