[syslinux] Last call before syslinux 2.08
H. Peter Anvin
hpa at zytor.com
Tue Dec 9 16:48:18 PST 2003
Blaauw,Bernd B. wrote:
> maybe the bug I told about a few days ago.
> However there are too many programs involved to be sure that this is a Memdisk bug.. (solely, or at all)
>
> the following is an image of a diskette I've made as testcase.
> diskette contains:
> *Syslinux 2.08pre9
> *corresponding Memdisk
> *FreeDOS kernel 2032a
> *Himem64.exe (xms-driver up to a few GB)
> *dos=high
>
> this disk works (presented option 2). However when loading the same using Memdisk (option 1) it fails.
> http://www.darklogic.org/fdos/beta9/minicd/memdisk.bmp (36KB) shows option1 results within Vmware (and on my dad's computer)
>
Indeed there are. I have previously seen problems with FreeDOS that
have turned out to be FreeDOS problems more often so than MEMDISK problems.
My initial guess would be that FreeDOS -- in particular, FDXMS286.SYS --
gets unhappy about the way MEMDISK handles INT 15h AH=87h, the so-called
"high memory mover" API. The "286" part of that worries me, since INT
15h AH=87h is a bit different between 286 and 386.
-hpa
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