Re: [hatari-devel] floppy issue

["Roger Burrows" <rfburrows@xxxxxxxxx>]

A follow-up ...
On 12 Feb 2014 at 22:10, Roger Burrows wrote:

> On 11 Feb 2014 at 22:21, Roger Burrows wrote:
> > 
> > That's all I can do on this until I get my questions above answered.
> > 
> OK, I lied ;-).  I did some more investigation, including a disassembly of the
> TOS 3 & TOS 4 ROMs.  I assume TOS 2 is the same in this area; I used TOS3/TOS4
> because I had them handy.
> 
> I still believe there is a Hatari problem, but it is hidden with the TOS ROMs
> because they do not check the DMA status register after a floppy write. 
> Hatari 
> 1.7.x sets the DMA error bit (i.e. sets bit 0 to 0), which EmuTOS reports as
> an 
> error.  For *writes*, TOS doesn't check this bit, although it does so for 
> reads.
> 
Using the current EmuTOS CVS code, this problem does NOT occur with the latest 
official Hatari release (1.7.0); therefore it's a regression in the current 
Hatari development code.

Roger