[Coco] more overscan antics on the coco II

[Fedor Steeman]

This doesn't look like the binary for the game Dragonfire itself after
all...

Anyone got that in file format?

Cheers,
Fedor Steeman



On 22 April 2013 11:50, Fedor Steeman <petrander at gmail.com> wrote:

> Well, there was the Dragonfire binary!  :-)
>
> Simon, you think you can figure out how to do the same  trickery as in
> Dragonfire ? Would be interesting to see the source code of that.. .
>
> Cheers,
> Fedor
>
>
> On 21 April 2013 22:01, Torsten Dittel <OS-9 at trs-80.cc> wrote:
>
>> Simon Jonassen <simon at ...> writes:
>>
>> > Even more twiddling about reveals more posibilities....
>> >
>> > http://roust-it.dk/coco/more_overscan.jpg
>>
>> Simon, interesting. Did you figure it out on a real CoCo2 system, or is it
>> just XROAR showing that behaviour? I assume it's a "stable" display you're
>> showing? Could yo achieve that as well in HiRes Graphics modes?
>>
>> Did you have a look at http://TRS-80.CC/DRAGFIR2.BIN ? This has some
>> stable
>> partial border lines painted, some of them even with smooth vertical
>> animation. Works with XROAR and on 50HZ PAL machines only.
>>
>> A screenshot here:
>>
>> http://www.6809.org.uk/tmp/da/pal_coco_probe/pal-dragonfire-1.png
>>
>> Keep researching! I guess the VDG contains more funny things we don't know
>> yet (e.g. I never played around with desyncing it using the Hispeed POKE
>> 65497,0 at the right point of time and then POKEing back to slow speed in
>> the visible area).
>>
>> Regards, Torsten
>>
>>
>>
>> --
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>> Coco at maltedmedia.com
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>>
>
>