Xref: utzoo comp.sys.ibm.pc.hardware:3893 comp.os.msdos.misc:817 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!zaphod.mps.ohio-state.edu!rpi!sigma From: sigma@pawl.rpi.edu (Kevin J Martin) Newsgroups: comp.sys.ibm.pc.hardware,comp.os.msdos.misc Subject: Re: CGA 16-color mode AND rare questions Message-ID: <|`J^W6|@rpi.edu> Date: 17 Dec 90 19:32:47 GMT References: <1990Dec17.005334.383@iowasp.physics.uiowa.edu> <78524@iuvax.cs.indiana.edu> <1990Dec17.184808.15837@agate.berkeley.edu> Organization: Rensselaer Polytechnic Institute, Troy NY Lines: 23 Nntp-Posting-Host: pawl1.pawl.rpi.edu ss@sprite.Berkeley.EDU (Srinivasan Seshan) writes: >I always thought that the 160x100x16 was a character >reprogrammed mode. Where the charater set was replaced >by a programming into all possible values of a 4x2 matrix. >This also prevented use of text in this mode and >also is the reason its not documented. That would be one way to do it, IF CGA had software selectable fonts like EGA and VGA do. Unfortunately, standard CGA only offered (as I remember it) two fonts in text mode (there was a jumper to get a "thin" font on standard IBM cards), and if you wanted your own characters, you had to define them in the standard graphics modes - where you could reprogram the text characters to have 4x2 combinations, but then you wouldn't have more than four colors. But, does anyone know how to get to the 160x100x16 mode? Incidentally, it didn't really have text, since the BIOS didn't support the mode, and the text would look awful anyway. -- Kevin Martin sigma@rpi.edu "i feel true blue and real"