Newsgroups: comp.os.msdos.programmer Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!snorkelwacker.mit.edu!bloom-picayune.mit.edu!athena.mit.edu!pshuang From: pshuang@athena.mit.edu (Ping-Shun Huang) Subject: Re: Fonts for Hercules In-Reply-To: pruss@ria.ccs.uwo.ca's message of 21 Jun 91 22:08:50 GMT Message-ID: Sender: news@athena.mit.edu (News system) Organization: Massachusetts Institute of Technology References: <3441@ria.ccs.uwo.ca> Date: Sun, 23 Jun 91 20:13:40 GMT Lines: 19 In article <3441@ria.ccs.uwo.ca> pruss@ria.ccs.uwo.ca (Alexander Pruss) writes: > Can you load a different font into a Hercules compatible display > adaptor? (Without any hardware modifications.) If so, how? The basic Hercules monochrome graphics board (not the InColor board or the RAM____ [sp?] boards or the Workstation Graphics Card) does not provide hardware support for fonts, as EGA and VGA standards do. As is possible with any bit-addressable graphics device, the application can implement any font it wants in software... The table which tells the board how to represent each ASCII character in display memory with bit patterns is hard-coded in ROM, and there is no provision to change the address of this table. You can, however, read this table so that your software can use it to display characters in graphics mode which look very much like the characters in text mode. -- Above text where applicable is (c) Copyleft 1991, all rights deserved by: UNIX:/etc/ping instantiated (Ping Huang) [INTERNET: pshuang@athena.mit.edu]