TweetFollow Us on Twitter

Oct 96 Top 10
Volume Number:12
Issue Number:10
Column Tag:Symantec Top Ten

Symantec Top 10

By Craig Conner

Q: I know that if I use the java.lang classes which extend number, like Double, Float, Integer and Long, I can get their values as a string without difficulty, however, I don’t like to use these classes and want to know how to coerce a standard number type into a string. For example, in C I could use sprintf(&str, “%d”, num); where num is some variable of type int and the contents of the string str would contain the value of num. How do I do something similar in Java?

A: There is a simple and elegant method to do just this. You can take advantage of the + operator in Java to add a string and a variable together. For instance, say you had an integer y that you wanted to be displayed next to the string “Output: “, you could do this by using the + operator: “Output: “ + y. If we assign an arbitrary value for demonstration purposes to y, say 5, then the result of the expression would be a string with contents “Output: 5”. So what if you just want the value of your variable as a string, without anything else? You could use this expression: “” + y. This results in a string that contains just the value of y as a string. This is handy when you want to output the contents of a variable to the system error window for debugging purposes like this: System.err.println(“” + y);

Q: In Symantec Café I want to make a standalone application so I setup my project to be an application rather than an applet, but when I get done building the project all I have is a .class file that presents the Applet Viewer upon double clicking. Can I make a stand alone application using Café?

A: Currently the only way to run the byte code that the Java compilers produce is through an applet viewer or through a Java capable browser. The major difference between generating an application rather than an applet in Café is that the security issues are not restrictive in an application, as they are in an applet. By generating an application, you are still generating Java byte code, not machine code native to the platform. This means that that byte code will still need to be interpreted at runtime by some implementation of a Java virtual machine, whether it is the Applet Viewer or a Java capable browser. Rumor has it that, in the future, Mac OS 8 will have a Java virtual machine built in. Ah, Mac OS 8.

Q: On the PPC, are floating point numbers aligned on the stack?

A: Normally floating point values are stored in floating point registers unless you are using the address of the floating point value. The significance of this is that, if the stack is not aligned on an 8-byte boundary, access to that double can be extremely slow due to misaligned accesses.

Q: How can I create a 68k code resource in the release 5 Symantec Project Manager?

A: You will need the 68K Code Resource project model and
files, available at:
ftp://ftp.symantec.com/public/devtool/mac/developer.tools.and.info/SPM68KCodeResource.hqx. Since the SPM currently creates a ‘SIZE’ resource for 68K applications, you will need to execute the “*Remove SIZE Resource*” AppleScript from the menu after building your code resource.

Q: I want to create a PPC shared library, but it appears that exporting names from the library is an all-or-nothing affair. How can I export only certain names from my library?

A: Use #pragma export list name[,name[...]] to specify certain names to export. Conversely, importing certain names is done through the #pragma import list name,[name[...]] option.

Q: How can I quickly calculate the ProcInfo value procInfoConstant, if I’ve defined it in my program?

A: Add the line long pinfo = procInfoConstant; as the first line in your main function, then disassemble your PPC code. You’ll find the value of the procInfo constant as a decimal value loaded into a register with an LI instruction (it should be the first LI in the main function), and the hexadecimal value will be the low word of the hex value to the left of that LI instruction.

Q: I notice that when I am linking my 68k project in the release 5 Symantec Project Manager it can take a really long time. Is there a way to speed up this process?

A: Yes! We are using the ToolServer, an external application, to invoke the LINK tool in order to perform the linking process. Since the ToolServer comes up in the background, link times are often longer than they need to be. To avoid this, and to speed up linking time for your 68k projects, simply bring the ToolServer to the front during linking.

Q: I have a PPC application that runs flawlessly in Native PPC but when I run the 68k version it causes runtime errors. How do I Debug 68k code generated from the release 5 Symantec Project Manager?

A: The Symantec C++ 8.0 Release 5 CD includes an external debugger called, SourceBug which will allow source level debugging of 68k Applications built with the Symantec Project Manager. Future releases of Symantec C++ will have integrated 68k debugging support.

Q: So now that I know I can debug my 68k project using SourceBug, how do I use it?

A: Here are some steps to help you out:

• Install SourceBug onto your hard drive by copying it from Apple Software:Debuggers:SourceBug on your 8.0 release 5 CD.

• Under the Project menu, choose Options... then go to the Linker page, select the “Output” option in the pop-up menu.

• Check the option Generate a Symbol file.

• Inside the Generate a link file box, select Full symbols. This will cause a myProj.SYM file to be generated when you build the application.

• Under the Build menu select Build Application.

• Launch SourceServer by double clicking on it from the Finder. You can locate an alias to the SourceServer application by looking in the (Tools) folder inside your Symantec C++ for Power Mac folder.

• From the Open dialog, open your 68k Application. The source code browser window will appear.

• Click on the main. in the stack crawl pane in the upper left.

• Click on the function you would like to debug in the pane to the upper right.

• Set break point(s).

• Select Run from the Control menu.

• Congratulations.

Q: How does the Enable Symbolic Debugging check box affect the .SYM output files, and why won’t it stay set when I save the Symantec Project Manager Options?

A: The inclusion of this checkbox is actually an oversight. Setting this checkbox, you may notice, had no effect on the symbolic output file that gets created by the linker. (See the linker options for 68k projects.)

Q: Then, how do I create an external symbol file so I can use external debuggers to debug my 68k project?

A: This Option is Set in the Linker page of the Options... item of the Project menu. Once you get to the Linker page, choose Output in the pop-up menu. To turn on External Symbol file generation, check the checkbox Generate a symbol file and select the Full symbols checkbox.

Special thanks to: Glenn Austin, Scott Morison, Andrew McFarland and Mark Baldwin.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

beaTunes 5.0.2 - Organize your music col...
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
iFFmpeg 6.4.1 - Convert multimedia files...
iFFmpeg is a comprehensive media tool to convert movie, audio and media files between formats. The FFmpeg command line instructions can be very hard to master/understand, so iFFmpeg does all the hard... Read more
Hopper Disassembler 4.2.6- - Binary disa...
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
iExplorer 4.1.2.0 - View and transfer fi...
iExplorer is an iPhone browser for Mac lets you view the files on your iOS device. By using a drag and drop interface, you can quickly copy files and folders between your Mac and your iPhone or... Read more
TunnelBear 3.0.15 - Subscription-based p...
TunnelBear is a subscription-based virtual private network (VPN) service and companion app, enabling you to browse the internet privately and securely. Features Browse privately - Secure your data... Read more
Carbon Copy Cloner 4.1.16 - 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
Day One 2.3 - Maintain a daily journal.
Day One is the easiest and best-looking way to use a journal / diary / text-logging application for the Mac. Day One is well designed and extremely focused to encourage you to write more through... Read more
Sketch 45 - Design app for UX/UI for iOS...
Sketch is an innovative and fresh look at vector drawing. Its intentionally minimalist design is based upon a drawing space of unlimited size and layers, free of palettes, panels, menus, windows, and... Read more
NeoFinder 7.1 - Catalog your external me...
NeoFinder (formerly CDFinder) rapidly organizes your data, either on external or internal disks, or any other volumes. It catalogs all your data, so you stay in control of your data archive or disk... Read more
Day One 2.3 - Maintain a daily journal.
Day One is the easiest and best-looking way to use a journal / diary / text-logging application for the Mac. Day One is well designed and extremely focused to encourage you to write more through... Read more

Latest Forum Discussions

See All

Kalimba™ (Games)
Kalimba™ 1.0 Device: iOS Universal Category: Games Price: $3.99, Version: 1.0 (iTunes) Description: ** BAFTA-nominated ‘Best New Property’ 2015 ** Jump, slide and fly your way through a beautiful, mind-bending world in this award-... | Read more »
All That Remains: Part 1 (Games)
All That Remains: Part 1 1.0 Device: iOS Universal Category: Games Price: $.99, Version: 1.0 (iTunes) Description: “Duncan Price is paranoid” they used to say. He’s just a “local nut” they said. They used to say a lot of things about... | Read more »
Super Samurai Rampage (Games)
Super Samurai Rampage 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Super Samurai Rampage is a bloody, retro pixel style high score chaser. You play as a legendary Samurai warrior provoked... | Read more »
You can now travel to Skyrim in The Elde...
The Elder Scrolls: Legends' new expansion has opened up Skyrim's craggy mountains and snowy plains for exploration today. Heroes of Skyrim is out now, adding a bunch of new Skyrim content to Bethesda's recent CCG. [Read more] | Read more »
High-stakes solitaire game 'Missile...
Missile Command and Solitaire might seem like an odd couple, but indie developer Nathan Meunier has brought them together to create his first game, Missile Cards, which launched on the App Store today. [Read more] | Read more »
Eos 2 (Music)
Eos 2 2.0.2 Device: iOS Universal Category: Music Price: $5.99, Version: 2.0.2 (iTunes) Description: | Read more »
Supercell celebrates Hay Day's comm...
Before there was Clash Royale or Clash of Clans, there was Hay Day. Now, Supercell's first game is celebrating its fifth anniversary, and the developer is commemorating the event with this touching new video. Supercell picked one long-running Hay... | Read more »
Dive into epic summer adventure with Oce...
Summer may be the best time to enjoy ocean adventures, and now you don’t even have to leave the comfort of your own home, thanks to the folks at Joycity, creators of Oceans & Empires. The old-timey naval MMO is getting a sizable new June Grand... | Read more »
Missile Cards (Games)
Missile Cards 1.0.9 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0.9 (iTunes) Description: "Missile Command meets Solitaire...only with more doomlasers, death, and explosions." | Read more »
Collect mini assassins in 'Assassin...
Assassin's Creed is traveling back in time to the Spanish Inquisition for its latest mobile entry, Assassin's Creed Rebellion. The game is giving the series a look that's a huge departure from its past design, recreating classic characters in a... | Read more »

Price Scanner via MacPrices.net

New 15-inch 2.8GHz Touch Bar MacBook Pros on...
MacMall has the new 2017 15″ 2.8GHz MacBook Pros in stock and on sale for $2279 including free shipping. Their price is $120 off MSRP, and it’s the lowest price available for these models: - 15″ 2.... Read more
Will iPad Running iOS 11 Be The ‘Ute’ Of The...
Steve Jobs’ analogy comparing iPads and PCs to cars and trucks respectively is seven years old but still stimulates discussion and debate. Appearing on an All Things D panel in 2010 shortly after the... Read more
Free CarePassport App gives Patients control...
Boston based CarePassport is on a mission to enable patients to take control of their medical records by allowing patients to aggregate, store, share and manage all their medical data including... Read more
Western Digital Launches New My Passport Ultr...
Western Digital Corporation has expanded its WD brand My Passport portable drive line with the redesigned My Passport Ultra drive. In addition to a new metallic look, the drive offers intuitive WD... Read more
Clearance 2016 13-inch MacBook Pros available...
B&H Photo has clearance 2016 13″ MacBook Pros in stock today for up to $210 off original MSRP. Shipping is free, and B&H charges NY & NJ sales tax only: - 13″ 2.9GHz/512GB Touch Bar... Read more
Apple Releases iOS 11 Public Beta; How To Get...
The official release of Apple’s latest mobile operating system iOS 11 is vaguely slated for the fall, but as of June 26, ordinary users can download an iOS 11 public beta. To download the iOS 11... Read more
Extend Life of MacBook Pro Retina 2.0TB With...
MacSales.com/Other World Computing has announced availability of the new OWC 2.0TB Aura Pro Solid State Drive for mid-2012 to early 2013 Apple MacBook Pro with Retina display. One of the fastest... Read more
BBEdit SummerFest 2017 Discount Ends Friday,...
You can get 20% off BBEdit for a limited time in Bare Bones Software’s http://www.eastgate.com/Tinderbox/Specials/SummerFest.html?mc_cid=f2101ca260&mc_eid=[UNIQID]SummerFest 2017 sale and... Read more
Use Apple’s Education discount to save up to...
Purchase a new Mac using Apple’s Education discount, and take up to $300 off MSRP. All teachers, students, and staff of any educational institution qualify for the discount. Shipping is free: - 15″ 2... Read more
Clearance 27-inch 3.3GHz 5K iMac available fo...
Amazon clearance 27″ 3.3GHz 5K iMacs (MK482LL/A) available for $1799.90 including free shipping. Their price is $500 off original MSRP, and it’s the lowest price available for this model from any... Read more

Jobs Board

*Apple* Online Store WW Customer Insights -...
…with data mining tools: R, SAS, etc.Experience with common shell scripting tools: unix, python, apple script, Swift etc. Apple Online is one of the largest and Read more
Engineering Project Manager, *Apple* Online...
…the electronic commerce (eCommerce) systems and solutions that enable and support the Apple Online Store (AOS) - one of world's largest online retail businesses, Read more
*Apple* News Product Marketing Mgr., Publish...
…organizational consensus on strategy and vision for publisher tools, authoring, and Apple News Format.Carries this strategy and vision across the organization to 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
Security Data Analyst - *Apple* Information...
…data sources need to be collected to allow Information Security to better protect Apple employees and customers from a wide range of threats.Act as the subject matter Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.