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86Box setup (Users)

posted by roytam, 05.02.2024, 00:30

> > The following part of the Xi8088 BIOS (not XT-IDE) overwrites the INT10
> > handler address. May be the root of the cause. DS being zero is a side
> > effect of the intr() call FDISK performs, and by itself should not do
> any
> > harm. It is restored before intr() returns.
> >
> > [image]
>
> Seems that Eric was on the right path, and XT-IDE hands off the INT13 call
> to the Xi8088 BIOS. This in turn seems to mess things up.

as listed in https://github.com/skiselev/8088_bios/blob/master/src/floppy1.inc and https://github.com/skiselev/8088_bios/blob/master/src/floppy2.inc , Xi8088 BIOS handles floppy part of int 13h only.

there is another bug report in https://github.com/skiselev/8088_bios/issues/46

 

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