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Frequently Asked Questions

What is DMA and why should I have it enabled?

Showshifter Support - Frequently Asked Questions
DMA (Direct Memory Access) is a system whereby the peripherals on your computer can transfer data to and from memory directly, without going via the CPU. If the picture display is jerky, having DMA enabled significantly improves performance. We strongly recommend that you have DMA enabled when running ShowShifter. Windows disables DMA by default.

edit] Q: Why is DMA disabled by default and how do I enable it?

Using FAQ - Knoppix Documentation Wiki
Knoppix does the very best it can to automatically figure out what hardware the PC has & it does this without human intervention. DMA is a feature that speeds up data tranfer on IDE devices such as CDROM drive& HD drives. Some chipsets and/or harddiscs are broken or buggy. Using DMA would cause problems on such systems. If your system works properly with DMA, and you are booting from HD, you can enable it by typing "/sbin/hdparm -c3 -d1 -m16 -k1 /dev/hda" or by editing the "/etc/init.

What about Ultra-DMA?

Home
Ultra-DMA, also knows as UDMA, Ultra ATA, or Fast ATA-2 , is a further enhancement of the EIDE disk-drive interface, available on the newer G3 Macs and on some PCs (Intel 440TX, LX, BX, and later chipsets; VIA/AMD VPX, VP2/97, AMD-640 chipsets; Promise Ultra33 (FastTrack) controller. Win95 and WinNT require an upgrade to exploit UDMA; Win98 supports it fully). UDMA drives tend to be a lot cheaper that SCSI-3 drives, and are often capable of stutter-free capture and playback of DV data.

Are all vendors in the system enabled for EDI invoicing?

ECAT3, Frequently Asked Questions, FAQ
The eCAT3 implementation team is working to enable all existing vendors for EDI invoicing. A requirement for any new vendor to be added to the system is that they comply and meet the MIT standards for electronic commerce which includes the EDI invoice process.

How do I verify that budgetary controls have been enabled?

FM FAQs
The system will automatically enable Budgetary Controls on an Award/Project combination when the Award Budget is baselined. To verify that budgetary controls have been enabled, drill down from the Award Budget screen – select “Tools” from the menu bar, then "Budgetary Controls."

Who teaches DMA seminars?

Professional Development & Training Frequently Asked Questio...
DMA seminars are taught by the industry's leading experts who have years of experience helping people succeed in the direct and interactive marketing industry.

Where are DMA seminars held?

Professional Development & Training Frequently Asked Questio...
DMA seminars are held across the country in cities like Atlanta, Baltimore, Boston, Chicago, Denver, Los Angeles, Minneapolis, New York, San Francisco and St. Louis. We are rolling out our best seminars to more cities each year. If your DM Club would like to bring a DMA seminar to your area, please contact Kristen Cunningham at 212.790.1531 or krcunningham@the-dma.org for more information.

Can DMA Associates host its applications?

DMA Associates: FAQs
Whether you're a small business or a large enterprise, DMA Associates can provide hosting for our applications. With fault-tolerant, redundant, and scalable servers, our service levels meet or exceed the requirements of the Fortune 100. We'll work to fill the unique requirements of your organization.

How do I use DMA channels?

BitCtrl Systems -> QNX® Distribution -> FAQ
DMA channels are programmed using Port I/O calls, which are covered in section A). The memory DMA'd from and to should be "DMA SAFE". Before QNX® version 4.24 the shared memory routines always allocate contiguous memory. In 4.24 this changed. Now the only way to allocate DMA SAFE memory with the qnx_segment_alloc_flags() routine. There is a _PMF_DMA_SAFE flag as well as a _PMF_DMA_HIGH flag. Use the DMA HIGH flag if memory above 16Meg is ok, or in other words, you have a PCI adapter.

What are all of the DMA modes & what are they used for ?

GB DEV FAQs
This is the original DMA that is available on all models of GB. It is used to do a fast copy of sprite attribute data to Object (sprite) Attribute Memory (OAM) located at $fe00-$fe9f. Sprite attribute data includes sprite X & Y coordinates, tile number, palette number, horizontal flip, vertical flip, and sprite priority. No tile graphics are transferred using this method of DMA. Otherwise known as Horizontal Blank DMA. It is only available on the GBC.

Do you have to be a member of DMA to enter the competition?

DMA ECHO FAQ's
No, not exactly. The DMA International ECHO Awards recognize the total package: brilliant strategy, breakthrough creative, and phenomenal results. All three matter in the real world, so all three are considered here. We judge these criteria individually and as a whole to determine the best of the best. Some campaigns are out-of-sight and get awards. Others are like a bad trip and must go back to the drawing board.

Why is DMA disabled by default and how do I enable it?

Using FAQ - Knoppix Documentation Wiki
Knoppix does the very best it can to automatically figure out what hardware the PC has & it does this without human intervention. DMA is a feature that speeds up data tranfer on IDE devices such as CDROM drive& HD drives. Some chipsets and/or harddiscs are broken or buggy. Using DMA would cause problems on such systems. If your system works properly with DMA, and you are booting from HD, you can enable it by typing "/sbin/hdparm -c3 -d1 -m16 -k1 /dev/hda" or by editing the "/etc/init.

How can I do a DMA Putpixel or DMA Mem-to-Mem copy?

PC Demos FAQ -- Official FAQ of comp.sys.ibm.pc.demos
You shouldn't bother. Not only is the DMA controller limited to 64K segments, but only on the slowest PC's (we're talking 8086 here) is it faster than doing a REP MOVSW. Still, DMA memory transfers take no CPU time at all, but you still shouldn't use them because they're just too slow on modern PC's. If you really want to do it anyway, just to see if it works, here's a small article from 1989 by Patrick & David O'Riva that can help you.

What kind of seminars does the DMA hold?

Professional Development & Training Frequently Asked Questio...
DMA holds various B-to-B and consumer topics for direct and interactive marketers at every level. We offer training across the U.S. from the fundamentals to creative development to interactive marketing to strategic development.

What have past attendees said about DMA seminars?

Professional Development & Training Frequently Asked Questio...
This was a phenomenal presentation - immensely useful - you will make me appear a genius and a hero to my client." Everything you can imagine about direct mail. I would make magic in my company if the day had 48 hours!" I wish I had taken this 5 years ago. This course is what distinguishes direct marketing from advertising and promotion." Fabulous! A treasure trove of experience that provides the information I need in a format that is straighforward 'tried and true' and readily applicable.

I have a project in trouble. Can DMA Associates get it back on-track?

DMA Associates: FAQs
The process includes a transition plan for a seamless shift from the existing project to the new approach. Our consultants also execute the turn-around plan, either overseeing the project through completion or equipping your in-house team to take-over the project.

What precautions should I use when doing Sprite DMA ?

GB DEV FAQs
In order to do a sprite DMA you have to have a sprite table with address $xx00. (x = don't care) Depending on the address of this sprite table you have several options: Sprite table not in video RAM ($8000-$9fff) - Most games do not put their sprite table in video RAM but rather usually use low RAM ($c000-$dfff). The reason for this is because you can write to low RAM at any time but video RAM is picky about writes when the screen is on.

Can I specify whether I want to deal with DMA members only?

Leaflet Distribution
Under your main account page, you can specify companies who you don't wish to deal with. These will then be excluded from any work offered by you. They will not be able to see or make offers on your work either.
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