Newsgroups: comp.os.msdos.programmer
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!mit-eddie!uw-beaver!ubc-cs!yogi
From: yogi@cs.ubc.ca (Joseph Gil)
Subject: Re: Mystery: How does norton get 25/40 lines on EGA/VGA?
Message-ID: <1991Apr27.225329.18172@cs.ubc.ca>
Keywords: Norton fonts
Sender: usenet@cs.ubc.ca (Usenet News)
Organization: University of British Columbia, Vancouver, B.C., Canada
References: <1991Apr26.063431.26967@cs.ubc.ca> <1991Apr26.184908.5103@proto.com>
Distribution: comp.os.msdos.programmer
Date: Sat, 27 Apr 91 22:53:29 GMT

In article <1991Apr26.184908.5103@proto.com> joe@proto.com (Joe Huffman) writes:
>>	..... a) Is there a 16x10 font in the ega/vga adaptor memory? Any1 has
>>	a detailed manual?
>
>No and yes.  There are 8 x 8, 8 x 14, and 8 x 16 fonts available.  And I 
>think you mean 8 x 10 font.
>
Yes, I mean 8x10 that is height 10 width 8.
>>	b) How can this font be accessed?
>
>It would appear that Norton supplied their own.  Unless the board is put
>into graphics mode and function 1121h - int 10h is used with the 8 x 8 font.
>Even then I'm not sure it can be done satisfactorily (I was able to get a 40 
>line graphics mode screen but it doesn't use the entire screen -- at least
>not on my machine).

Norton uses text mode.
>
>>	c) Given an adapter with a font loaded in it- is there
>>	a way of extracting the font from the adaptor memory?
>
>The font information in text mode is kept in plane 2 of the display memory.
>I should be possible to access it.  Further research (which I don't have 
>time for) is required.


Thanks a lot!

	Yossi