Re: Mode 13h

[Bob Pendleton <bobp@pendleton.com>]

http://gameprogrammer.com/3-tweak.html has a lot of information about
mode 13 programming.

Peter Peterssen wrote:
> 
> Hello..
> 
> Mode 13H. Wow. Then, perhaps you can tell me how the heck I draw a dot on
> the screen like X and Y ?
> 
> I do call 0xA0000 and the use the..
> outportb(0x3c9, red);
> outportb(0x3c9, green);
> outportb(0x3c9, blue);
> 
> .. for the background layout and then ..
> 
> b= 0;
> pokeb(0xa0000, B,30)
> 
> .. for the actual dot.
> 
> This doensnt work unless i add 1 to red OR green OR blue. ( I dont see the
> dot on the screen).
> 
> So, as you see Im totaly lost and really dont get the whole thing. Do you
> have an example how to structure something?
> 
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