Why not DMA

Just wondering why Intel and AMD do not use DMA. It would increase
performance.
Cheers Lon

"Lonald Casino" wrote in message
...

Just wondering why Intel and AMD do not use DMA. It would increase
performance.


Huh? Floppy controllers, SoundBlaster type cards, enhanced parallel
ports, DMA33 and later ATA hard drives and ATAPI CDROMs all use DMA.

He must've come off his isolated island after something like a 20-year
stranding.

DMA has been in every PC starting back in the original PC dating back to
1981 (http://www.infran.ru/TechInfo/BSD/handbook257.html).

Maybe "DMA" means something to Lonald other than Direct Memory Access.
Since Lonald mentions Intel and AMD instead of system manufacturers, like
IBM, Dell, Gateway, Aopen, and so on, maybe he is asking why CPU chip makers
haven't moved the external chipset onto the die for the CPU and made all
functionality integrated into one package. Maybe .... ah, forget it. A
short question like this leaves way too much for interpretation.

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"Alien Zord" wrote in message
...
"Lonald Casino" wrote in message
...

Just wondering why Intel and AMD do not use DMA. It would increase
performance.


Huh? Floppy controllers, SoundBlaster type cards, enhanced parallel
ports, DMA33 and later ATA hard drives and ATAPI CDROMs all use DMA.