Path: utzoo!attcan!uunet!ncrlnk!ncr-sd!hp-sdd!hplabs!ucbvax!agate!web-3d.berkeley.edu!c60c-4au
From: c60c-4au@web-3d.berkeley.edu
Newsgroups: comp.sys.ibm.pc
Subject: Writing directly to EGA registers
Keywords: ega, graphics
Message-ID: <19471@agate.BERKELEY.EDU>
Date: 25 Jan 89 20:39:45 GMT
Sender: usenet@agate.BERKELEY.EDU
Reply-To: c60c-4au@web-3d.berkeley.edu ()
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Organization: University of California, Berkeley
Lines: 19


 I recently wrote some Microsoft C routines which output objects directly
to the EGA video memory by the use of the EGA registers to select write
mode 0.  The routines are very nice and quick, but I haven't been able to
figure out how to write to more than one graphics page in this manner.  I
looked at the Byte and PC Tech Journal articles on the EGA (both published
about 1-2 years ago), and nothing seemed to say how to plot to more than
one page without using BIOS, which I didn't want to use.  Can anyone help me?

P.S.: Please post replies - my account is going away in 2 weeks and I am not
sure what the name of the replacement account will be yet.  




--
Erik Talvola               | "It's just what we need... a colossal negative 
c60c-4au@web.berkeley.edu  | space wedgie of great power coming right at us
                           | at warp speed." -- Star Drek