[MN-dev] [mndiff]: r75 - trunk/vga600/README

[michael]

Author: michael
Date: Fri Jul  6 01:36:31 2007
New Revision: 75

Log:
readme ...


Added:
   trunk/vga600/README

Added: trunk/vga600/README
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+VGA 600
+-------
+
+
+About:
+------
+Some old DOS/windows TSR i wrote in 1996/1997
+VGA600, does monitor the graphics/text mode currently used and if possible
+improves it by increasing the physical number of lines used similar to the
+line doubling used to display 320x200 with 400 on VGA cards.
+vga600 will hack the registers of the vga card to display 320x200 with 600
+or 800 lines, it will also increase the dot clock and thus refresh rate.
+Together these reduce flicker and the annoying black "lines" vissible
+on modern high resolution monitors when displaying low resolution stuff
+like 640x400 or similar
+
+
+Warning:
+--------
+VGA600 can, like any other tool which plays with your vga card theoretically
+damage your monitor! use at your own risk
+
+
+Requirements:
+-------------
+DOS or windows
+a VGA _compatible_ card which either properly exposes a useable dotclock
+or a card for which vga600 contains code to set the dot clock
+in practice, ET4000 should work, S3 might work (vga600 has code for
+them to set the dot clock)
+mach64 and i810 do not expose useable clocks
+patches to add support for setting dot clocks for cards which arent
+supported is welcome
+
+
+Compilation:
+------------
+dont remember, TASM i guess, i dont have any windows/dos system with TASM
+here to try ...
+a patch porting it to YASM is welcome, so is one porting it to linux :)
+
+
+Portability to non x86:
+----------------------
+under qemu maybe ;)
+
+
+Useage:
+-------
+vga600 /V[0-2] /P
+will probe all clocks and store them in a vga600.clk file, you need to
+run this before anything else
+the rest should be explained by just looking at the vga600 output
+
+License:
+--------
+GPL v2+
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