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- From: 00rbspelman@leo.bsuvc.bsu.edu
- Newsgroups: rec.games.programmer
- Subject: Re: vga mode 13
- Message-ID: <1992Nov17.121513.11999@bsu-ucs>
- Date: 17 Nov 92 17:15:13 GMT
- References: <1992Nov13.152904.1806@ms.uky.edu>
- Organization: Ball State University, Muncie, In - Univ. Computing Svc's
- Lines: 29
-
- In article <1992Nov13.152904.1806@ms.uky.edu>, carld@ms.uky.edu (Carl Lafferty) writes:
- > I have been trying to monitor quietly for some time now as a friend
- > gives me the articles to this group to save my phone bill..
- >
- > Anyway. I was wondering if anyone can tell me how to page flip using
- > mode $13 on the IBM vga compatibles. Any help will be appreciated.
- >
- > Either Post or E-Mail will be acceptable terms for reply.
- >
- > Carl Lafferty
-
- Well, there is ALWAYS a way around this one, only I don't quite know
- what it is at the moment. Officially, you cannot flip pages while in mode 13.
- It is not supported by the chip? If you are using some form of basic which
- supports mode 13, you can dimension an array, and assuming that your pictures
- will be similar in backround, you might use GET/PUT and a few DRAW statements
- to manipulate things to your liking. Otherwise I would say try to set aside
- enough memory to hold an image in mode 13, then direct the VGA card to get
- the picture information from there instead of from its own memory.
-
- The major problem this causes is with memory. I don't remember offhand
- how much memory mode 13 takes up, but I am sure it is at least 256k, probably
- substantially more due to the higher resolution and color options. Good luck..
-
- Robert B. Spelman
- Ball State University
- Muncie, IN
- 00RBSPELMAN@LEO.BSUVC.BSU.EDU
-
-