Re: [Qemu-devel] floppy disk

[Benjamin David Lunt]

----- Original Message ----- 
From: "Thiemo Seufer" <address@hidden>
To: "Benjamin David Lunt" <address@hidden>
Cc: <address@hidden>
Sent: Sunday, December 16, 2007 8:28 PM
Subject: Re: [Qemu-devel] floppy disk


> Benjamin David Lunt wrote:
> > Hi everyone,
> >
> > I only recently have started to use QEmu due to a request
> > on the alt.os.development usenet group.  My OS was not working
> > on QEmu due to it would not recognize the (emulated) floppy.
> >
> > After a lot of testing, QEmu does not return the correct
> > values for a Sense Interrupt command and the Status 0 byte.
> >
> > After looking over fdc.cc, someone has placed a hack write
> > where it should return these values.
> >
> > I am just wondering if this hack is temporary or if it will
> > be committed as code.
>
> That's the current state of the code in CVS.
>
> > For a more detailed description, QEmu returns the value
> > 0x20 while Bochs, VMware, and real hardware return the
> > values 0xC0, 0xC1, 0xC2, and 0xC3, for each drive 1 - 4
> > respectively.
> >
> > I am asking for more information on this subject.
>
> The interrupt status handling in QEMU's FDC emulation looks bogus
> to me, patches to fix it are welcome. :-)

Hi Thiemo,

(smile)  I may have a chance to do so in the near future.
If I do, I will post it here or find the correct way to post
a patch.

Thanks,
Ben