BBC BASIC for Windows

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screen map

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Topic: screen map (Read 539 times)

leslie griffin
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screen map
« Thread started on: Dec 26^th, 2009, 10:33pm »

im a newbie.
is there a way to work out the screen memory map in any mode,say mode 14.
i would like to be able to write assembly directly to the screen as i did on my old einstien (bbc basic)....thx shocked

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admin
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Re: screen map
« Reply #1 on: Dec 26^th, 2009, 10:54pm »

Quote:

i would like to be able to write assembly directly to the screen

There's plenty of information around on this topic.

As a starting point you can read this Wiki article: http://bb4w.wikispaces.com/Direct+screen+memory+access

You could also look at some of Tony Tooth's programs, in which he does exactly what you describe: http://www.tonytooth.co.uk/

Or you could use David Williams' GFXLIB library: http://www.bb4w-games.com/gfxlib/gfxlib.html

Richard.

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leslie griffin
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Re: screen map
« Reply #2 on: Dec 26^th, 2009, 11:09pm »

thx for that clear and concise.
and thankyou for such a good service,only bought the full version an hour ago, painless and very quick.

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