IBM PC hacking

Chris M wrote: My AT&T PC 6300 (Olivetti M24 clone) had this but it wasn't as exotic as the hardware mentioned above: The stock Motorola 6845 character generator (MC6845) was used, but it just pointed to an 8x16 character table so you got nicer characters in 400-line mode. 200-line modes were just scanline-doubled. Pro? a true 640x400-line high-res mode. Con? Games that used text character "graphics" (that took the stock IBM 8x8 font into account when they were created) didn't look right. Oh, another favorite feature: The card had a signal line that could activate the degaussing circuit on the bundled AT&T monitor. I almost fell out of my chair when I ran diagnostic software that printed something like "Degaussing..." and then was quickly followed by a loud noise and the familiar "twisty pix" distortion of a monitor in its degaussing cycle... scared the crap out of me. -- Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/ Want to help an ambitious games project? http://www.mobygames.com/ Or check out some trippy MindCandy at http://www.mindcandydvd.com/