Re: VC-20 all 16 colours full-screen?

From: groepaz_at_gmx.net
Date: Wed, 01 Sep 2021 17:03:38 +0200
Message-ID: <20647872.4csPzL39Zc_at_rakete>
Am Mittwoch, 1. September 2021, 16:51:52 CEST schrieb Anders Carlsson:
> Den 2021-09-01 kl. 16:28, skrev groepaz_at_gmx.net:
> > Am Mittwoch, 1. September 2021, 16:17:22 CEST schrieb
silverdr_at_wfmh.org.pl:
> >> Is there a method, some VIC-I tricks or so to display colours 8 through
> >> 15
> >> full screen? I don't need any content on the screen other than the whole
> >> visible area being of the same colour.
> >
> > make the display window as large as the whole screen and display just
> > spaces, so it displays only "background" color. you might need a memory
> > expansion to do this without further trickery.
>
> Good suggestion. You don't even need memory expansion, only a bunch of
> POKEs:
>
> Move screen to 7168, colour memory to 37888, prevent variables from
> overwriting the screen (or vice versa):
> POKE 56,28:POKE 648,28:POKE 36866,22:CLR:PRINT"{CLR/HOME}"
>
> Maximize screen to 28 columns x 36 rows. Adjust as required on your
> actual display, these are max in old VICE:
> POKE 36864,6:POKE 36865,14:POKE 36866,28:POKE 36867,72
>
> Clear screen:
> FOR X=0 TO 1007:POKE 7168+X,32:NEXT
>
> Set foreground colour to values 8-15:
> FOR X=8 TO 15:POKE 36879,X*16+8:NEXT

good call :) i *think* what silverdr is looking for isnt actually "whole
visible screen" but really "the entire screen" (the complete area that
contains video output) to make some measurements - not sure what dimensions
you'd have to use for this


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Received on 2021-09-01 18:00:07

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