<html><body>Hi Magnus, <div><br></div><div>Perhaps experimenting with more colours is not that good idea after all. </div><div><br></div><div>I read at Oberon-Pepino pages about a VGA line change from 3bit to 8bit video, I thought it was done in support of more colours, so modifying Display.Mod only will show more colours?</div><div><br></div><div>Tom</div><div><br></div><div><p>---------- Původní zpráva ----------<br>Od: Magnus Karlsson <magnus@saanlima.com><br>Komu: ETH Oberon and related systems <oberon@lists.inf.ethz.ch><br>Datum: 28. 3. 2016 22:24:34<br>Předmět: Re: [Oberon] paint.mod attached</p><br><blockquote>Also, the video circuit is stalling the processor when it needs to <br>access memory. Today with 1 bit/pixel it is stalling the processor <br>9.375% of the time.<br>If you adapt the hardware to say 4 bits/pixel then it would stall the <br>processor 37.5% of the time.<br><br>Magnus<br><br>On 3/28/2016 12:13 PM, Jörg Straube wrote:<br>> Tom<br>> Having more than two colors needs at least the following<br>> - adapt the Verilog code VID.v<br>> - adapt Display.Mod<br>><br>> For 4 colours, you obviously need double the video memory than today (today= 98304 byte = 9.3% of total memory)<br>><br>> I think for a colour display it would be best to have more than 1 MB of memory.<br>><br>> Jörg<br>><br>><br>><br>> Gruss. Jörg<br>>> Am 28.03.2016 um 20:45 schrieb Tomas Kral <thomas.kral@email.cz>:<br>>><br>>> Hi,<br>>><br>>> Thank you, I would like to try on Oberon FPGA Station.<br>>><br>>> I am also interested in the original pictures and Paint.Tool. Not sure<br>>> if these are preserved somewhere?<br>>><br>>> Grapes.Pict Eschew.Pict New.Pict Clown.Pict Clown16.Pict<br>>> Paint.Tool<br>>><br>>> I am led to believe FPGA is currently configured for two-colour Display<br>>> buffer, it would be therefore interesting to experiment with more<br>>> colours, if at all could be supported by the chip.<br>>><br>>> Many thanks so far.<br>>><br>>><br>>> -- <br>>> Tomas Kral <thomas.kral@email.cz><br>>><br>>>> On Fri, 2016-03-25 at 12:48 +0100, scrutinizer wrote:<br>>>> paint.mod attached<br>>>> let me know if you need some sample .pict files<br>>>><br>>>>> Date: Thu, 24 Mar 2016 21:26:47 +0100<br>>>>> From: Tomas Kral <thomas.kral@email.cz><br>>>>> To: oberon@lists.inf.ethz.ch<br>>>>> Subject: [Oberon] Oberon Paint.Mod<br>>>>><br>>>>> Hi,<br>>>>><br>>>>> I am curious about drawing programs for Oberon system as I am reading<br>>>>> PO.Applications chapter, describing Draw.Tool implementation.<br>>>>><br>>>>> I have also seen a Clown picture at<br>>>>> https://en.wikipedia.org/wiki/Oberon_%28operating_system%29<br>>>>><br>>>>> It shows Paint.Tool commands apparently coming from a Paint.Mod<br>>>>><br>>>>> Paint.Mod does not seem part of Oberon System, I am just curious where<br>>>>> it originates?<br>>>>><br>>>>> Cheers Tom<br>>>> --<br>>>> Oberon@lists.inf.ethz.ch mailing list for ETH Oberon and related systems<br>>>> https://lists.inf.ethz.ch/mailman/listinfo/oberon<br>>> --<br>>> Oberon@lists.inf.ethz.ch mailing list for ETH Oberon and related systems<br>>> https://lists.inf.ethz.ch/mailman/listinfo/oberon<br>> --<br>> Oberon@lists.inf.ethz.ch mailing list for ETH Oberon and related systems<br>> https://lists.inf.ethz.ch/mailman/listinfo/oberon<br><br>--<br>Oberon@lists.inf.ethz.ch mailing list for ETH Oberon and related systems<br>https://lists.inf.ethz.ch/mailman/listinfo/oberon</blockquote></div></body></html>