Subj : Writing BIOS interrupt 08h`
To   : borland.public.cpp.borlandcpp
From : "Rob C." <robb_christiansen@juno.com>
Date : Wed Aug 20 2003 12:31 pm


Maybe I  shouldn’t even attempt this . . . I’m not a real 
knowledgeable programmer. How much chance is there of ruining my 
computer should I get this wrong? This would be a good thing to 
know, but I sure don’t want to risk that! 

I’m  looking in the “DOS Programmer’s Reference, 3rd 
addition,“ by Dettmann and Johnson - “BIOS Functions Reference,” 
pg. 509, function 08h, read character and attribute.

In addition to reading and saving the character that is on the 
screen at any x/y position, I need to also read and save its 
foreground and background colors. As I read it, this function 
will accomplish that task. I wonder, though, can I use this in 
Borland C++ ?

Following is what is in the book:
* Returns the character and attribute at the current cursor 
position.
* CALLING REGISTERS - 	AH	08h
			BH	Display page

* RETURN REGISTERS - 	AH	Attribute byte
			AL	ASCII Character

.