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BIOS and memory (Miscellaneous)

posted by DOS386(R), 25.08.2007, 02:47

Japheth wrote (in other thread):

> However, modern BIOSes supporting SATA usually also support ultra DMA, so an external driver is not necessary.

Indeed ... seems to be pretty fast via INT $13 :-)

But how is it done ? They support DMA and USB storage - but where do they take the memory ? DMA drivers always need XMS, DOS USB drivers always have memory problems, and mostly do require XMS, or even worse EMM386 :-(

How do the new "dead" BIOS'es do "without" memory ? :-)

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