RE: Success - first hires graphics ;)

From: Baltissen, GJPAA (Ruud) <ruud.baltissen_at_apg.nl>
Date: Thu, 7 Sep 2017 06:26:54 +0000
Message-ID: <54F350D2C6501448A3EE14B7854C5FB563D9163C@WSV10441N3.office01.internalcorp.net>
Hallo Christian,


> I thought the screen memory starts at 0008 too, because of the clear screen subroutine.
> But the first pixels on screen start at 0010.

I just wonder, pure curiosity, why the pixels start at 0010 and not 0000. Is it a 6845 thing?


Another question:  how were you able to mix graphics and text? I thought it was either this or that here. I know it is possible on the C64 using a program but you didn't mention it. 


@all:
The hardware looks quite simple so if the schematic is known, I'm going to build my self one. But I am thinking of one change: I will look if I can free up a memory range of at least 256 bytes somewhere, maybe even using the $Axxx range. Not having to change a register for every byte will speed up building a graphical image. Looking at Christian's blog it could save at least 25% of time.


Met vriendelijke groet / With kind regards, Ruud Baltissen

www.Baltissen.org



De informatie in dit e-mailbericht is vertrouwelijk en uitsluitend bestemd voor de 
geadresseerde. Wanneer u dit bericht per abuis ontvangt, verzoeken wij u contact op te 
nemen met de afzender per kerende e-mail. Verder verzoeken wij u in dat geval dit 
e-mailbericht te vernietigen en de inhoud ervan aan niemand openbaar te maken. 
Wij aanvaarden geen aansprakelijkheid voor onjuiste, onvolledige dan wel ontijdige 
overbrenging van de inhoud van een verzonden e-mailbericht, noch voor daarbij 
overgebrachte virussen.

APG Groep N.V. is gevestigd te Heerlen en is ingeschreven in het 
handelsregister van de Kamer van Koophandel Limburg onder nummer 14099617


The information contained in this e-mail is confidential and may be privileged. 
It may be read, copied and used only by the intended recipient. 
If you have received it in error, please contact the sender immediately by 
return e-mail; please delete in this case the e-mail and do not disclose its 
contents to any person. We don't accept liability for any errors, omissions, 
delays of receipt or viruses in the contents of this message which arise as a 
result of e-mail transmission.

APG Groep N.V. is registered in the trade register of the Chamber 
of Commerce Limburg, The Netherlands, registration number: 14099617


       Message was sent through the cbm-hackers mailing list
Received on 2017-09-07 07:00:03

Archive generated by hypermail 2.2.0.