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- Newsgroups: comp.os.msdos.programmer
- Path: sparky!uunet!gatech!taco!dspascha
- From: dspascha@eos.ncsu.edu (DAVID SCOTT PASCHAL)
- Subject: Re: VGA 640x400x256 possible!
- Message-ID: <1992Sep13.030229.2527@ncsu.edu>
- Originator: dspascha@c00082-100lez.eos.ncsu.edu
- Lines: 24
- Sender: news@ncsu.edu (USENET News System)
- Reply-To: dspascha@eos.ncsu.edu (DAVID SCOTT PASCHAL)
- Organization: North Carolina State University, Project Eos
- References: <"92-09-01-18: 08:55.86*UKB8"@DKAUNI2.BITNET> <1992Sep12.113051.1@mars.ibioc.serpukhov.su>
- Date: Sun, 13 Sep 1992 03:02:29 GMT
-
-
- In article <1992Sep12.113051.1@mars.ibioc.serpukhov.su>, orlov@mars.ibioc.serpukhov.su writes:
- |>
- |> I managed to force my VGA (in fact, Paradise VGA) to enter 640x400x256 mode.
- |> Its number is 5Eh! Just invoke INT 10h with AX=005Eh and you'll have your VGA
- |> working in 640x400x256. I was told this must work on ANY VGA !
- |>
- |> BTW: I couldn't access the lower half of screen! Only first 128K can be
- |> accessed (seg=A000..BFFF). Do you (or someone else who reads this) know
- |> how to access another 128K ?
- |>
- |> With best regards, D.S.
- |> -------------------------------------------------------------------------------
- |> "I'm from the land of Russia where Shadows lie!"
- |> -------------------------------------------------------------------------------
- |>
-
- Hi. The problem with this is that the standard (IBM) VGA doesn't support this
- mode. Various SVGA cards define various BIOS mode numbers above 13h to their
- own extended modes, but unfortunately, the mode number for 640x400x256 (or any
- other mode) probably won't be the same for other SVGA chipsets.
-
- Tschuess,
- David Paschal
-