Re: Worrisome IDE PIO transfers...

From: Richard Zidlicky
Date: Sun Feb 29 2004 - 15:05:39 EST


On Sun, Feb 29, 2004 at 09:52:08AM +0100, Geert Uytterhoeven wrote:
> On Sun, 29 Feb 2004, Bartlomiej Zolnierkiewicz wrote:
> > On Sunday 29 of February 2004 01:58, Jeff Garzik wrote:
> > > > I like Alan's idea to use loopback instead of "bswap".
> > >
> > > Neat but no more zerocopy that way. I much prefer a swap-as-you-go...
> >
> > Okay, better solution:
> >
> > - on Atari/Q40:
> > if drive->bswap use insw/outsw instead of swapping variants
>
> Yep, that sounds the most logical. Richard?

looks good.

However it appears to fix only part of the problem - we need some
logic to ensure only disk data is swapped.
Bswapping WIN_DOWNLOAD_MICROCODE data would not be very
clever I guess.

Richard
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