Re: [Qemu-devel] floppy disk

["Benjamin David Lunt" <fys@frontiernet.net>]

----- Original Message ----- 
From: "Thiemo Seufer" <ths@networkno.de>
To: "Benjamin David Lunt" <fys@frontiernet.net>
Cc: <qemu-devel@nongnu.org>
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