Hi!

How can I make the system font bigger?

(e.g. setting the display to 20 lines instead of 25)

I am using cga.

Hmm. CGA. Not even EGA or VGA. In VGA, you would get:

C:\>mode con lines=42
Lines must be 25, 28, 43 or 50, or font size 8, 14 or 16.
If you have VESA, 30, 34 or 60 lines can be available, too.

Given that CGA has 320x200 and 640x200 modes, you could
try to load some 8x14 or 8x16 font, but that would mean
only 12 or 14 lines.

In addition, the CGA BIOS does not contain fonts larger
than 8x8, so you would have to use the DOS DISPLAY driver
to load the larger fonts. However, that driver probably
ALSO will assume that you only want 8x8 fonts and fail
to load the larger fonts.

According to wikipedia, CGA only supports ROM fonts.
I guess it just does not have enough graphics RAM.

You could only switch to a slow graphics mode and let
the BIOS render the text in software. Should work for
software which does not directly access text screen
buffer memory and only uses DOS or BIOS to show text.

Regards, Eric




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