Re: [hatari-devel] SCSI emulation

[Thomas Huth <th.huth@xxxxxxxxx>]

Am Wed, 12 Sep 2018 22:07:03 +0200
schrieb Uwe Seimet <Uwe.Seimet@xxxxxxxxx>:

> Hi Thomas,
> 
> > > One more thing: I assume it is not to be expected yet that ASV
> > > can be run? Haven't used it for ages, but developed software on
> > > it for several years in the early 90s.  
> > 
> > No, I don't think that it will work. I expect that ASV is using real
> > interrupts, and for that we need emulation of the 2nd MFP of the TT.
> > Currently, the only thing that is emulated is that one single bit
> > in the GPIP register which is used by HD drivers for polling.  
> 
> Just for fun I hacked the MODE SENSE code in hdc.c to not report an
> error for an unknown mode page. The ASV loader now loads several
> hundred sectors, which I assume is the complete kernel.) The double
> bus fault in the attached screenshot vanished after enabling MMU
> emulation and soft floating point support. Now, after displaying the
> boot messages, there is a warm boot, without any console output that
> would indicate what went wrong.

Wow, that's more than I expected already. Do you have any information
about that missing MODE SENSE page? Would it make sense to emulate it
in Hatari, or is it too specific for that certain drive?

 Thomas