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From: psfales@ihlpe.ATT.COM (Pete Fales)
Newsgroups: comp.sys.att
Subject: Re: PC6300 graphics
Message-ID: <1868@ihlpe.ATT.COM>
Date: Thu, 16-Jul-87 10:20:25 EDT
Article-I.D.: ihlpe.1868
Posted: Thu Jul 16 10:20:25 1987
Date-Received: Sat, 18-Jul-87 07:47:56 EDT
References: <1723@marque.UUCP>
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 22

In article <1723@marque.UUCP>, doug@marque.UUCP writes:
> Who could share with me the magic incantation for obtaining
> 640 by 400 graphics from C/assembler for the AT&T PC6300?
> That is, if using int10h with ah=0, what should al be set to?
> And can the bios "write dot" int10h,ah=0ch function then be used?
> Or what is "the best" way to perform 640 by 400 mode line drawing?

The magic number you want is al=40h.  For a good time try al=48h.
The "write dot" function can then be used.

> Is there a good book/manual on the level of Duncan's Advanced MSDOS
> that "knows about" the PC6300?

If you are willing to spend $65.00 you can order the system programmers
guide from AT&T.  Thats where I got this info.  Just call 1-800-432-6600 
and ask for order code 909-802-200IS.

-- 
Peter Fales		UUCP:	...ihnp4!ihlpe!psfales
			work:	(312) 979-7784
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