[Coco] The Tri-Annual CoCo 4 Thread

[Luis Antoniosi (CoCoDemus)]

The v9958 does have support for genlock and the vdp image could be
superimposed to the coco3 rgb output. So we can superimpose sprites and
bitplanes. The vdp has what is called transparent color, i.e. where the
external video will appear.

But this is not a newbie task as it requires both clock (coco3 and vdp)
phase syncronization.

The vdp already does the vsync/hsync synchronization from external video.
On 2014-02-16 3:45 AM, "Nick Marentes" <nickma2 at optusnet.com.au> wrote:

> On 16/02/2014 6:15 PM, Mark McDougall wrote:
>
>> On 16/02/2014 6:46 PM, Nick Marentes wrote:
>>
>>  No! This is where it starts falling down!
>>>
>>> We start adding all these add-on's and then what do we have? A mish-mash
>>> machine with no definite personality.
>>>
>>> The Word-Pak is just an add-on. What Gary has created so far is good...
>>> and
>>> very CoCo'ish. All the old modes plus extensions of those modes.
>>>
>>
>> But Nick, IIRC this is exactly what you proposed some time back - a
>> cartridge add-on for sprites - is it not?
>>
>> Regards,
>>
>>
> Refresh my RAM... IIRC?
>
> An add-on cartridge for existing CoCo's is good. But how practical would
> it really be?
>
> Such a cartridge requires a multipak to have it co-reside with Disk Basic.
>
> And, it requires a second monitor. For some, that's too much deskspace to
> lose for something that there will be nothing more than a few demos of
> colors and sprites.
>
> Let's see if it becomes an accepted reality in numbers before we tack it
> on to the CoCoFPGA.
>
> The CoCo3FPGA is a different beast. It's a self contained (all on 1 board)
> "Super CoCo" connected to a single monitor running at 20Mhz.
>
> Anyway, it's Gary's call.
>
> Nick
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>