Hoke@cup.portal.com (Hoke S Johnson) (10/27/89)
Alan, By directly programming the registers of the VGA card it is possible to setup a 360x480x256 color mode on the plain VGA card. I found out about this from an article in the Sept/Oct 1989 Programmer's Journal magazine Volume 7.5 . The aspect ratio is strange, the pixels are almost twice as wide as they are high. It is also possible to get a 320x400x256 color mode on the plain VGA card also. To write to the screen in these modes you have to write your own driver since the VGA bios doesn't support these modes. If there is interest, I could post a turbo pascal routine which sets the 360x480x256 mode and show an example of how to write a scan line of pixels. Hoke Johnson hoke@cup.portal.com
TEITTINEN@cc.helsinki.fi (Marko) (10/30/89)
In article <23414@cup.portal.com>, Hoke@cup.portal.com (Hoke S Johnson) writes: > > By directly programming the registers of the VGA card it is possible > to setup a 360x480x256 color mode on the plain VGA card. [some text deleted] > If there is interest, I could > post a turbo pascal routine which sets the 360x480x256 mode and show an > example of how to write a scan line of pixels. Please, post this routine. I'm interested and I'm sure there are others that are interested too. -- E-Mail: teittinen@finuh.bitnet ! "Studying is the only way teittinen@cc.helsinki.fi ! to do nothing without Marko Teittinen, student of computer science ! anyone blaming you" -me