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

OmniOutliner Pro 4.2 - Pro version of th...
OmniOutliner Pro is a flexible program for creating, collecting, and organizing information. Give your creativity a kick start by using an application that's actually designed to help you think. It's... Read more
VLC Media Player 2.2.1 - Popular multime...
VLC Media Player is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, MP3, OGG, ...) as well as DVDs, VCDs, and various streaming protocols. It... Read more
Nisus Writer Pro 2.1.1 - Multilingual wo...
Nisus Writer Pro is a powerful multilingual word processor, similar to its entry level products, but brings new features such as table of contents, indexing, bookmarks, widow and orphan control,... Read more
Tinderbox 6.2.0 - 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
OmniOutliner 4.2 - Organize your ideas,...
OmniOutliner is a flexible program for creating, collecting, and organizing information. Give your creativity a kick start by using an application that's actually designed to help you think. It's... Read more
Things 2.5.4 - Elegant personal task man...
Things is a task management solution that helps to organize your tasks in an elegant and intuitive way. Things combines powerful features with simplicity through the use of tags and its intelligent... Read more
NeoOffice 2014.10 - Mac-tailored, OpenOf...
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
iPhoto Library Manager 4.2 - Manage mult...
iPhoto Library Manager allows you to organize your photos among multiple iPhoto libraries, rather than having to store all of your photos in one giant library. You can browse the photos in all your... Read more
Web Snapper 3.3.8 - Capture entire Web p...
Web Snapper lets you capture Web pages exactly as they appear in your browser. You can send them to a file as images or vector-based, multi-page PDFs. It captures the whole Web page - eliminating the... Read more
TeamViewer 10.0.41404 - Establish remote...
TeamViewer gives you remote control of any computer or Mac over the Internet within seconds, or can be used for online meetings. Find out why more than 200 million users trust TeamViewer! Free for... Read more

Chainsaw Warrior: Lords of the Night has...
It's time to put the Darkness back in its place now that Chainsaw Warrior: Lords of the Night has officially made it to iOS. | Read more »
A World of Ice and Fire Lets You Stalk 2...
George R. R. Martin’s A World of Ice and Fire, by Random House, is a mobile guide to the epic series. The new update gives you the Journeys map feture that will let you track the movements of 25 different characters. But don't worry, you can protect... | Read more »
Gameloft Announces Battle Odyssey, a New...
Battle Odyssey, Gameloft's newest puzzle RPG, is coming to the App Store next week. Set in the world of Pondera, you will need to control the power of the elements to defend the world from evil. You'll be able to entlist over 500 allies to aid you... | Read more »
Fusion - HDR Camera (Photography)
Fusion - HDR Camera 1.0.0 Device: iOS Universal Category: Photography Price: $1.99, Version: 1.0.0 (iTunes) Description: Fusion creates HDR (high dynamic range) photos by capturing different exposures and then combining them into one... | Read more »
Sago Mini Toolbox (Education)
Sago Mini Toolbox 1.1 Device: iOS Universal Category: Education Price: $2.99, Version: 1.1 (iTunes) Description: Come build with the Sago Mini friends! Use a wrench, try a saw, or hammer some nails. From sewing hand puppets to... | Read more »
You Should Probably Grab Hitman GO While...
Hitman GO is a surprisingly cool (yet also incredibly drastic) departure from the Hitman series. It's well worth playing for any puzzle game fans out there, and at the moment you can get your hands - or garrotte if you will - on it for a mere $0.99... | Read more »
IFTTT is Bringing Do Button and Do Note...
IFTTT has announced Do Button and Do Note for the Apple Watch. Do Button lets you make your own personalized button that can connect to things like your Google Drive, control the temperature in your home with Nest Thermostat, or turn the lights on... | Read more »
How Many Days, Hours, and Minutes Are Le...
Countdown, by Yves Tscherry, is now available on the App Store. The app keeps track of countdowns to your favorite things such as someones birthday or days till the New Year. You can display the time in seconds, minutes, hours, days, weeks, months,... | Read more »
The All-New Misfit 2.0 App is Available...
Misfit has just given their app a complete overhaul. Misfit 2.0 now has a brand new interface with a sleek design and is easier to navigate. You'll be able to sync your Misfit device and look up health and fitness information faster than ever before... | Read more »
Halo: Spartan Strike (Games)
Halo: Spartan Strike 1.0 Device: iOS Universal Category: Games Price: $5.99, Version: 1.0 (iTunes) Description: Delve into 30 challenging missions through cities and jungles using a devastating arsenal of weapons, abilities and... | Read more »

Price Scanner via MacPrices.net

TigerText Introduces First Secure Enterprise...
TigerText, a provider of secure, real-time messaging for the enterprise, has announced the launch of TigerText for the Apple Watch. TigerText for the Apple Watch enables users to securely send and... Read more
The Conservation Fund Partners with Apple To...
The Conservation Fund has announced that it will partner with Apple to help protect working forests in the United States. The Apple initiative will conserve more than 36,000 acres of working... Read more
Clearance 13-inch 2.6GHz Retina MacBook Pro a...
B&H Photo has clearance 2014 13″ 2.6GHz/128GB Retina MacBook Pros now available for $1099, or $200 off original MSRP. Shipping is free, and B&H charges NY sales tax only. Read more
Apple refurbished 2014 13-inch Retina MacBook...
The Apple Store has Apple Certified Refurbished 2014 13″ Retina MacBook Pros available for up to $400 off original MSRP, starting at $979. An Apple one-year warranty is included with each model, and... Read more
iMacs on sale for up to $205 off MSRP, NY tax...
B&H Photo has 21″ and 27″ iMacs on sale for up to $205 off MSRP including free shipping plus NY sales tax only: - 21″ 1.4GHz iMac: $1019 $80 off - 21″ 2.7GHz iMac: $1189 $110 off - 21″ 2.9GHz... Read more
Sale! 16GB iPhone 5S for $1 with service
Best Buy is offering 16GB iPhone 5Ss for $1.00 with 2-year activation at a participating cellular provider. Choose free home shipping and activation, or buy online and activate during in-store pickup... Read more
Apple refurbished 2014 MacBook Airs available...
The Apple Store has Apple Certified Refurbished 2014 MacBook Airs available starting at $679. An Apple one-year warranty is included with each MacBook, and shipping is free. These are currently the... Read more
27-inch 3.5GHz 5K iMac on sale for $2349, sav...
 Adorama has the 27″ 3.5GHz 5K iMac in stock today and on sale for $2349 including free shipping plus NY & NJ sales tax only. Their price is $150 off MSRP. For a limited time, Adorama will... Read more
Save up to $380 on an iMac with Apple refurbi...
The Apple Store has Apple Certified Refurbished iMacs available for up to $380 off the cost of new models. Apple’s one-year warranty is standard, and shipping is free: - 27″ 3.5GHz 5K iMac – $2119 $... Read more
iFixIt Teardown Awards 12-IInch Retina MacBoo...
iFixIt has posted its illustrated teardown of the new 12-inch MacBook Retina. They note that this new MacBook is less than half the thickness of the last Apple notebook called just “MacBook” back in... Read more

Jobs Board

*Apple* Watch SW Application Project Manager...
**Job Summary** The Apple Watch software team is looking for an Application Engineering Project Manager to work on new projects for Apple . The successful candidate Read more
*Apple* Solutions Consultant - Retail Sales...
**Job Summary** As an Apple Solutions Consultant (ASC) you are the link between our customers and our products. Your role is to drive the Apple business in a retail 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
Technical Project Manager - *Apple* Pay - A...
**Job Summary** Apple Pay is seeking an experienced technical PM to…manage the on boarding of new merchants for the Apple Pay platform in the US Within this role you Read more
Senior Identity Architect - *Apple* Pay - A...
**Job Summary** Apple , Inc. is looking for a highly motivated, innovative and hands-on senior identity architect to join the Apple Pay Engineering team. You will Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.