Re: millisecond delay

resolution timers themselves incidentally...) Regards, Ron Nicholson HotPaw http://www.hotpaw.com/rhn/hotpaw/ -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/

palmsource web page?

browsers (like those that run under PalmOS!!!) Regards, Ron Nicholson HotPaw http://www.hotpaw.com/rhn/hotpaw/ -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/

beaming handling

When there are multiple installed applications that are capable of handling a IR beamed object, how does the PalmOS decide which one to call (first)? Thanks. Ron Nicholson HotPaw http://www.hotpaw.com/rhn/hotpaw/ -- For information on using the ACCESS Developer Forums, or to unsubscribe

Re: What is max size we can allocate using MemPtrNew()

11k max. Ron Nicholson HotPaw http://www.hotpaw.com/rhn/hotpaw/ -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/

Re: FAQ fodder: How do I implement registration for my app (was : Free tool for anyone who can use it)

Thoughts on registration and software protection for PalmOS apps by Ron Nicholson, HotPaw, http://www.hotpaw.com/rhn/palm/ First note that the customer base for PalmOS applications is constituted by all different kinds of people. Different ethics. Different nationalities. Different

Re: Forcing battery warnigns on a Palm V or POSE

] [writes:] .. How can force a low battery on a Palm V or POSE ???. I want to catch the event in my app, but I need to be able to debug it. But that means I need to be able to create the warnings to order. Can this be done. Regards, Ron Nicholson HotPaw http://www.hotpaw.com/rhn/hotpaw

Re: Palm devices memory bus width ?

://ebus.mot-sps.com/ProdCat/psp/0,1250,MC68EZ328~M934310090795,00 .html#documentation IMHO. YMMV. Ron Nicholson HotPaw http://www.hotpaw.com/rhn/hotpaw/ -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/

Re: New Palms - Compatibility

may have different display hardware (obvious since they may even have a different CPU ISA.) Regards, Ron Nicholson HotPaw http://www.hotpaw.com/rhn/hotpaw/ -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/

Treo 600 firmware version check?

? Or will it crash like some of the OS 5 Sony Clie models? Thanks, Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Treo 650 sampled sound frequency difference?

frequency offset on all Treo 650's at this requested sample rate? On a few Tungsten T's which I've checked, the sample rate of 8000 was within 0.1% of exact. Thanks, Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information on using the PalmSource Developer Forums

Re: Palm OS Developer Program

Same boat. Doesn't remember any registrant at any of my email addresses. And I've been registered for a very long time (since sometime in '96 IIRC). Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information on using the Palm Developer Forums, or to unsubscribe

Re: Self-generated code on ARM devices

), which can be a performance problem. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: A question for the icache experts..

, a 16k boundary) can sometimes cause a measurable impact on performance. So YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Error: Signed .word overflow

you have code at the beginning calling procedures near the end? Try moving the calling code or the called procedure towards the middle. etc. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see

Re: calling mathlib functions from sound callback..

library. You should benchmark any math library or floating point operations, and compare with the time available inside a sound stream callback. You might find that you need to move any floating point calculations outside the callback, or use scaled integer math instead. Ron Nicholson HotPaw

Re: code optimization and performance tuning

, graphics rendering, arm/pnolet cache usage, etc. Note that some OS DB calls take much longer than others. This is something you can profile or benchmark. A version of the POSE emulator includes profiling capability. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm

Re: Generating regular waveforms using the sound stream API.

accuracy of better than 0.1 Hz should be trivial using these methods. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm/ -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: SndStreamCreate Error 0x7005 on T, T2

sndInt16Little instead on the T|T. Not all devices support all soundstream formats and rates. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: ARM code keeps crashing - please help

this question over in the PalmOS pno-forum. You could be having a data cache flush or icache-invalidate related problem with your poke'd in armlet. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe

RE: SndStreamCreate

whatever garbage is in the buffer will also become a sound. But if you only want a system sound every K seconds, why are you doing this in a callback instead of from your event loop using TimGetTicks()? IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm

Re: sampled sound

synthesis. Some textbooks on digital signal processing and audio processing also cover a bit of this subject. There are several methods of sampled sound synthesis or playback which all have various advantages and disadvantages. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com

Re: double and float encoding

. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Running a program in a background process

, there are API's in the Cobalt documentation. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Stand alone 68k code resource in Codewarrior 9

header. I only want the pure 68k code, without the .prc header or resources. You can use the par utility to extract a resource from a .prc to a .bin file. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe

Re: Use low-den fonts on high-den screen?

whichever fonts I selected. Is it a must to make custom fonts? Any advice and suggestion. Search the forum archives for small text with high density and tiny fonts : http://www.escribe.com/computing/pcpqa/index.html for two different methods to accomplish this. Ron Nicholson HotPaw Productions

Re: ARMlets and 68k global data

. both CW and gcc as commonly configured) will put pointers and global/local long ints on short int boundries. Check in your 68k code: If ((UInt32)myGlobalPointer 0x0002L) != 0, your ARM code will crash. Pointers returned by malloc on Palm OS 5+ won't have this problem. IMHO. YMMV. Ron

RE: encryption/decryption Palm Database

... YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Cobalt porting: No longer single prc for all OS versions

versions which don't provide these oft-asked for features, and the app guidelines recommend informing the user appropriately (I'm sorry, the only encryption type available on Palm Pilot OS 1.0 is double ROT13; do you wish to proceed? :-) IMHO, YMMV. Ron Nicholson HotPaw Productions http

Re: Cobalt porting: No longer single prc for all OS versions

about a possibly desirable direction for OS 4/5/Garnet support which will allow developers to adopt the Cobalt API's sooner. I would like to port my apps once, but still have my code run on the millions of OS 4/5 devices in the field. IMHO, YMMV. Ron Nicholson HotPaw Productions http

Re: Sony Clie Error Message

Clie handheld developer forum over at cliedeveloper.com IMHO. YMMV. Ron Nicholson, Palm OS(tm) Certified Developer HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Converting Palm App to Mac OS X App

applications, and are quite easy to use. Converting to use the OS X Cocoa API and Objective-C or Java is likely to require a much larger rewrite for any typical PalmOS application written in straight C and the classic (non-Cobalt) PalmOS API's. IMHO. YMMV. Ron Nicholson HotPaw Productions http

Re: Palm OS Developer Suite - Now Available ?

running under wine :) The Cobalt/OS 6 simulators do, in fact, run under VirtualPC 6 on a Mac (OS X)... ... very slooowlllyyy... but they do work. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe

Re: Palm Powered logo certification

as having equal or higher quality, then the Palm Powered logo will lose much of its value. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Globals inside a CallBack?

, etc.) it won't have those global variables set up, and will probably crash when trying to access them. Test this by getting a pointer to the callback subroutine and calling it from a completely different application. Be prepared for a crash and reset. IMHO. YMMV. Ron Nicholson HotPaw Productions

Re: Memory Fragmentation

much larger dynamic heaps than some older models. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- Original Message -- On Mon, 26 Jan 2004 17:30:55, Fruber Malcome wrote: In our application we do quite a lot with JPEG libraries and text that creates

Re: Mere existence of program on Treo puts into infinite reset loop

or allocating globals or global variables, or any functions or subroutines in any other code segments when you app is launched (it will be) with these launch codes. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums

Re: Sound bug?

(). Regards, Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Sound bug?

or not PACE is a factor in the problem. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: What's the harm in this?

On Fri, 9 Jan 2004 19:52:25, Robert Scott writes: It seems that PalmOS always saves the pixels before they are obscured, and restores them again when the obscuring form goes away. ...unless available dynamic memory is very low (and something like an alarm goes off). Ron Nicholson HotPaw

Re: FlpAToF( . ) is 0.0

= 0.0 / 0.0; /* indeterminate */ x = -0.0 / 0.0; /* negative indeterminate */ Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Manipulating Microphone

for details. Any data reduction that can be performed inside the callback can also help out with cache and performance issues if your foreground task (a game, for instance) is quite CPU intensive. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm

RE: Feature Memory

. Is that going to cause any drag? You could benchmark FtrGet, or any other OS call for that matter, but putting it in a loop and seeing how many times you can call it in n ticks on a given device, then report back here and let us know. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn

Re: color lines

. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm WinSetForeColor() and WinSetForeColorRGB() -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Sound Stream Callback frequency

use a native ARM callback to generate samples more rapidly. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: how to draw the slope text ?

by Foley and van Dam, is one highly regarded textbook on the subject. You can also examine the code inside various software texture-mapped 3d renderers. You might also want to use interpolation if you don't want small bitmapped fonts to look even more ragged after rotation. IMHO. YMMV. Ron

Re: Floating Point Error

of the fractional rounding errors implicit in the binary/decimal fp conversion process if you are only doing addition/subtraction operations without mantissa overflow. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums

Re: URGENT : SndStream limitation

streaming sound callbacks work quite well when one has a lot of processing to do. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Amt of Dynamic Memory to keep free

are running Gremlin testing is always advisable. But one needs to leave more dynamic heap free than just that required by Gremlin testing if one want to play polite with unknown hacks or notification manager sublaunch calls which the user may have running. IMHO. YMMV. Ron Nicholson HotPaw

Re: tick count in milliseconds

? IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: palmcall + globals

create an arm/pnolet which can have its own set of global variables (using CW 9.2 or other techniques) separate from those of the 68k app, and call that arm/pnolet through a 68k sublaunch or notification stub. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm

Version in About form (was: Getting label strings from form resources...)

my resource files; and this method allows me to create a new build which includes an updated About version string with one less step. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please

Re: audio in/out dilema

some filler sound (silence if necessary). IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: audio in/out dilema

packet buffer. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Creating Armlets

as the PceNativeCall UserData68KP parameter, as long as it's inside a chunk created by MemPtrNew, and not just a stack local or global variable, unless your 68k compiler can guarantee 4-byte alignment (many can't). Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using

Re: Random numbers or entropy sources?

of background noise seems to have a moderate amount of entropy. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: pointer to function in ARM

allocate almost all of the dynamic heap at app startup, and run your own memory allocator inside of this chunk. Just use macro's to redirect all malloc's to your own routines. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer

Re: Compressing Palm Records

Note that LZ compression methods are good at compressing large chunks of data. If your records are small, you might have better luck using a dictionary or run-length compression algorithm that has some pre-knowledge of the characteristics of the data contained in the records. IMHO. YMMV. Ron

Re: speedy serial

bandwidth. Try reading about sliding window protocols. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Sound Stream problem

the single UserData pointer to pass any parameters, synchronization flags and/or data buffers to/from the callback. Access this structure in a thread-safe manner. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums

Re: Zire 21 and Sampled Sound

just fine for output, but it just locks up when I try to ask if a sound input channel is available using SndStreamCreate(). Does this mean we we need another method to check for sound capability? (other than check for TT, Z21, TJx5, etc. ad infinitum...) Ron Nicholson HotPaw Productions http

Re: double buffering in OS 5

PalmOS. (Did Tapwave do anything?) Or is the persistence of the low-power LCD's long enough to hide the tearing artifacts? Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev

PalmOne-dev-forum and PalmOS-dev-forum ?

-specific questions from generic PalmOS application development questions. Hopefully, someone at PalmOne is like actually responsible for communicating with developers. A name or official contact-point, and possibly even an introduction would certainly be appreciated. Thanks. Ron Nicholson HotPaw

Re: How to determine processor type (not just ARM core type)

to provide supported API's for such. I'd like to see official support for reading the high resolution CPU cycle counter(s), the display vertical refresh counter(s) if possible, and for setting oddball serial port baud rate dividers, for instance. Any others? Ron Nicholson HotPaw Productions http

Re: bitmap problem with sysNotifyMenuCmdBarOpenEvent

to avoid resource ID conflicts with other notification command bar applications and/or with the foreground application. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev

automatic code translator? (was Re: Cross Compiler for 68K processor )

exists given the endian differences between these two architectures. You best bet is to either acquire HLL source code, to completely disassemble and rewrite the code and libraries, or to just run the 68k code under an emulator such as PACE. Ron Nicholson HotPaw Productions http://www.hotpaw.com

Re: DmCloseDatabase issue on T3

. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Solution to T3 performance degradation after power off / power on sequence

On Fri, 17 Oct 2003 17:59:16, Craig Likes writes: Is this problem only on T3? What about Tungsten E? Note that the T|E does not have any sound input hardware. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums

Re: Tungsten T3 performance change after power off -- power on sequence

could be changing on wake-up, and differently from after a soft reset? Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: T3 speed 'loss' investigation

or after a power cycle). - Does performance change after performing a HotSync? - Does performance change after beaming over Ir, or changing the Ir preferences? - same question about Bluetooth... Thanks for the fishing expedition, Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm

Re: FW: Near Data Segment is bigger than 64K

. These data resources can later be cut and pasted into the actual application which needs them. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: New PIM databases on T3

, etc.) Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Is there an Arm version of Mathlib?

doing this (see my yCPUBench application) with a T|T compared with similar code running on a Palm Vx. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support

Re: sysAppLaunchCmdGoTo Datebook on Tungsten E

AppLaunchWithCommand(sysFileCDatebook, launchCmd, launchParamsP); Are you sure an application with the creator sysFileCDatebook exists on a Tungsten E? Check the creator signature of the Calendar application. If different, does that one work? Ron Nicholson HotPaw Productions http

Re: New PIM databases on T3

and updating the public PIM data. MemoPad and Contacts/Addresses as well. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Sound Stream question

in the buffer the first time your callback is invoked. You also need some mechanism to make sure you can keep the the buffer filled before it gets emptied. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe

Re: Providing mission critical data

. There's nothing to keep the callback from playing silence, and using its time slot for some other functionality. Just make sure you don't exceed the time allocated to the callback (which can be tricky to determine when other sounds are playing), and make sure the routine is safe from deadlocks. Ron

Re: Dummy APP for handheld

is a good candidate. HotPaw PrefViewer can create a dummy application with the creator ID of an orphaned preference; so you might be able to use the resultant dummy application that as well. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm

Re: Breaking the 32K barrier for codes which handle non-sysAppLaunchCmdNormalLaunch

are over 32k (use jump island subroutines in the middle if necessary). You can also call code resources and armlets outside this first segment for almost unlimited code space, just no global variables. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using

Re:Best Windows tool for developing applications for the PalmOS?

integrated, and much better pno-let floating point performance than the current gcc tools. But I'd much prefer to use a Mac OS X IDE if there were a supported one available. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums

Re: Palm ZIRE dynamic heap size

have been installed, background sound threads on newer models, etc. etc. Because of this, it is important to test an application with much less dynamic heap available than the default amount available on a clean idle handheld after a cold boot. Ron Nicholson HotPaw Productions http

Re: The PalmOs command line accept arguments for applications?

examples.) sysAppLaunchCmdGoTo and sysAppLaunchCmdFind are other examples of a launch codes which includes parameters. And there are a few 3rd party utility applications which will allow one to insert CmdGoto parameters on a command line. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn

Re: Newbie Question - Using Visual Studio??

performance with the other 3 choices (CW v9, arm-elf-gcc, and ADS). Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Tutorials Needed

://www.palmos.com/dev/tools/ Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

AlphaSmart Dana forum?

Is there a developers forum or mailing list for the AlphaSmart Dana? I checked their web site and couldn't find a developers link... nor a link from the palmsource dev/support/licensee page. Thanks. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information

Re: Armlet optimization

time, and what its working set and access patterns look like compared to the size of the caches, etc. before choosing where and how to optimize. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm/ -- For information on using the Palm Developer Forums, or to unsubscribe, please

Re: Palm OS bugs in low memory conditions?

memory. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm/ -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Screen Blanking?

Which PalmOS models support turning off the display to save refresh and backlight power while still executing application code (foreground or background task)? Where might this be documented, if anywhere? Thanks, Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm

Re: build ARMlets with prc-tools

Don't forget that there is a PalmOS armlet forum, which might be a more appropriate place for these questions: http://www.escribe.com/computing/poaf/index.html Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm -- For information on using the Palm Developer Forums

Re: Need help with sound stream on TT

*(L10x8000? (L20x8000? 1:0):(L20x8000? 0:-1) ... The 32-bit multiply inside you inner loop doesn't need to be there, and is probably taking you over your callback time budget, which needs to be faster than the time it takes to play out frameCount samples at your selected sample rate. Ron Nicholson

How to remove focus from a text field?

How does one remove focus from a text field in a form? (remove the blinking cursor while leaving the field viewable.) Setting focus to a non-existent field does not work on some of the debug simulators/emulators. Thanks, Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm

Re: non-techie terms to distinguish on-device memory fromexpansion cards

like their PC's hard disk. Without that 5 MB, it would be like trying to run a PC with no DRAM in it. http://www.nicholson.com/rhn/palmfaq.txt Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/palm --Original Message-- On Thu, 29 May 2003 12:58:32, Mike writes: Removable

Re: Tungsten T: Access to microphone

the microphone works just fine. Arm native callbacks work if you need higher performance analyzing the sound. There's a prototype Tungsten T sound spectrum analyzer on this webpage: http://www.hotpaw.com/rhn/palm Ron Nicholson HotPaw Productions -- For information on using the Palm Developer Forums

Re: Launching an app at interupt time

stuff at interrupt time. If you want to do anything involving the OS GUI (help form, etc.), you have to wait until out of the interrupt thread, and in the main event loop of the current running application. Some sort of alarm or delayed notification might be worth trying. IMHO. YMMV. Ron

Re: In a loop is it possible to use button

should system events be polled during a user requested compute bound algorithm? Thanks, Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: Serial comm delays in OS 5 (m550) (was: Re: Palm OS DeveloperMembership Upgrade)

. So SrmReceiveCheck() *will* return after only 1 byte is in the buffer, but after a slight delay (a few milliseconds it seems). It may be that the OMAP chip itself takes some time to shift incoming serial port data down its built-in 8-byte FIFO. Ron Nicholson HotPaw Productions http

Re: Serial comm delays in OS 5 (m550)

that is hardware specific may or will fail on new or different PalmOS models and OS versions, so one needs to check ones operating environment very carefully. ( end standard disclaimer #3 ) Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information on using the Palm

Re: computing sin/pow floating point functions

used the latter in the cbasPad5 armlet in order to keep the code smaller and more cache friendly. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev

Re: computing sin/pow floating point functions

work with very little modification. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Re: computing sin/pow floating point functions

calls. So the fdlibm solution would still perform significantly better. IMHO. YMMV. Ron Nicholson HotPaw Productions http://www.hotpaw.com/rhn/hotpaw -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/

Serial IR on the Zire model?

Does anyone know if the errata regarding opening the serial port in IR mode under OS 4.1 was fixed on the Palm Zire model? If not, does anyone know which Dragonball port bit(s) controls the enable/disable of the IRDA transceiver hardware on this specific model? Thanks, Ron Nicholson HotPaw

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