[syslinux] Read disk not working in 3.35+
Ram Yalamanchili
ramyinc at gmail.com
Fri Feb 23 16:53:35 PST 2007
This intcall works fine in 3.40-pre7. thanks for the fix.
On 2/19/07, H. Peter Anvin <hpa at zytor.com> wrote:
> H. Peter Anvin wrote:
> >>
> >>> eg: char sectorBuf[64*1024*2] and getting an address within it which
> >>> is aligning to 64k.
> >>>
> >>> If you dont think the lib function is a good idea, what options do i
> >>> have other than using the bounce buffer?
> >>
> >> None. The bounce buffer is actually by definition *all* the memory
> >> below 1 MB available to the COM32 program.
> >>
> >
> > By the way, the best way to use the bounce buffer is really to consider
> > it local around the intcall: copy your data to the bounce buffer
> > immediately before invocation, and copy your data from the bounce buffer
> > immediately after. This is pretty much what the library functions
> > should do.
> >
>
> Oh yes, one more thing: the bounce buffer is properly aligned.
>
> -hpa
>
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