On Sun, 17 Sep 2006 08:26:18 +0100, Daniele Terdina  
<[EMAIL PROTECTED]> wrote:

>> No I would never write software which "assumes" - it does the standard
>> test which is to write to $20000 and read from the Aurora display  
>> address
>
> To avoid any assumptions, you could test to see whether you are running  
> on
> Q-emuLator version 2.4 or later (there is a trap for that).

Yes I know of that :-)

> Of course, emulating HW screen "ghosting" where the same memory can be
> accessed at $20000 and st the video card's base address would be more
> general and allow compatibility with software like Photon without having  
> to modify it.
> I'd rather not emulate true "ghosting" as it would make video emulation
> slower, but I might be able to emulate enough of it to be recognized by
> applications like Qword (while keeping video emulation fast).

 From memory, the Aurora manual suggests you only set and test the first  
two long words, so that would be sufficient.

-- 
Rich Mellor
RWAP Services
URL:http://www.rwapsoftware.co.uk
URL:http://www.rwapadventures.com
URL:http://www.rwapservices.co.uk
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