[Coco] another silly video idea

[jdaggett at gate.net]

Dave

>From a hardware standpoint, implementing a ISA 8 bit card is 
easier. All that is needed is a driver or a rewrite of software. Other 
means as a new GIME does require more thought and testing 
especially if one intends to be backward compatible with Coco 1/2.

I have not decided on a VGA core or as to how much I intend to 
implement in the first pass. Some of the rtegisters are in place and 
the MMU is done. Once the video section is completed then 
interconncects and testing. I am still confident that I might be able 
to start testing in fpga by Thanksgiving.

Frances has delayed work a bit. I most likely now will not be able to 
continue much on it until after next week. Had several trees 
damaged and have to play lumberjack this week and clean up. No 
structural damage to the house but about five trees got trimmed by 
Frances and she forgot to clean up after herself. 

james


On 7 Sep 2004 at 11:53, David Gacke wrote:

From:           	"David Gacke" <dgacke at ektarion.com>
To:             	"'CoCoList for Color Computer Enthusiasts'" 
<coco at maltedmedia.com>
Subject:        	RE: [Coco] another silly video idea
Date sent:      	Tue, 7 Sep 2004 11:53:12 -0500
Send reply to:  	CoCoList for Color Computer Enthusiasts 
<coco at maltedmedia.com>
	<mailto:coco-
request at maltedmedia.com?subject=unsubscribe>
	<mailto:coco-
request at maltedmedia.com?subject=subscribe>

> Hi James,
> 
> Speaking of video, how is your VHDL implementation of the GIME going?
> 
> An FPGA version of the GIME is the "best" solution to improve and
> update the CoCo's video.
> 
> 
> Dave
> 
> -----Original Message-----
> From: coco-bounces at maltedmedia.com
> [mailto:coco-bounces at maltedmedia.com] On Behalf Of jdaggett at gate.net
> Sent: Tuesday, September 07, 2004 11:13 AM To: CoCoList for Color
> Computer Enthusiasts Subject: Re: [Coco] another silly video idea
> 
> Bob
> 
> That is not as silly as you might think. Actually to make an 8 bit ISA
> bus interface is easy. The hardest part is to get older 8 bit video
> cards and data on them to write drivers for them. That thought has
> crossed my mind.
> 
> Then you no longer are slaved to the video logic contained within the
> GIME Chip. The one major draw back is that these video cards often
> have address ranges in the lower part of memory that would need to be
> translated up. 
> 
> james 
> 
> On 6 Sep 2004 at 10:37, Robert Emery wrote:
> 
> Date sent:      	Mon, 6 Sep 2004 10:37:41 -0700 (PDT)
> From:           	Robert Emery <theother_bob at yahoo.com>
> To:             	coco at maltedmedia.com
> Subject:        	[Coco] another silly video idea
> Send reply to:  	CoCoList for Color Computer Enthusiasts 
> <coco at maltedmedia.com>
>  <mailto:coco-
> request at maltedmedia.com?subject=unsubscribe>
>  <mailto:coco-
> request at maltedmedia.com?subject=subscribe>
> 
> > Ok, this has probably been discussed in the past but I was wondering
> > about a different approach to using a VGA monitor on a CoCo. What
> > about interfacing to an old 8 bit ISA video card... just like Scsi
> > and MFM controller cards have been used.
> > 
> > Thoughts?
> > 
> > Bob
> > 
> > 
> > 
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! Mail - Helps protect you from nasty viruses.
> > http://promotions.yahoo.com/new_mail
> > 
> > -- 
> > Coco mailing list
> > Coco at maltedmedia.com
> > http://five.pairlist.net/mailman/listinfo/coco
> 
> 
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
> 
> 
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco