Configuration: The ArcadePerfect Utility.
Download the program here
NOTE this is beta software.
Let us know if any problems/comments.
This program is for advanced users and allows you to change the refresh
rate outside of the operable range for your monitor. In extreme cases
this could cause monitor damage!
It is designed for purists who wish to get the most from their card but
we expect usage to be at a low level.
Make sure before you try to use this utility that you first:
- Have a stable ArcadeVGA installation
- Know what the implications of changing refresh rates and other
video timings are.
What this program does:
The program allows you to tweak picture size, position and vertical
refresh rate using mouse clicks or hotkeys.
The adjustments can be made on the fly and, uniquely, you will see the
change happen immediately so you can "fine tune" the display for each
game while the game is running.
The adjustment of vertical refresh is especially useful as you can at
last eliminate the "tearing" effect which can happen on scrolling games
without having to resort to other workarounds.
Once the adjustments have been made, you can save the settings to a
file which you can associate with a specific game. Then running the
program (including from a command line) and loading the file will cause
the display to change to the specified resolution and settings.
Note that the program avoids creating new resolutions, it applies
changes to existing only. This means a certain resolution can have any
number of refresh rates. When the settings are applied by using a saved
file, the resolution specified in the file is switched-to first, then
the custom settings from the file are applied.
When used with Mame, this allows you to effectively create an infinite
number of resolutions. This is because of the way Mame (in DirectDraw
mode) creates equal borders around games when the game res is below the
current screen res. The custom settings allow the border to be removed
thereby creating the same result as if the screen had a resolution
matching the game exactly.
You can also tweak the vertical refresh to eliminate scroll tearing.
use (GUI Mode):
You can experiment using the program in GUI mode before trying it in a
When you start the program, the current screen resolution will be
displayed, along with figures representing horizontal and vertical
size, plus horizontal and vertical position.
Note these figures are for use in this program only, and
don’t equate to any actual modeline values.
Also the refresh rates will be displayed. The horizontal refresh is a
calculated value and cant be manually changed. The vertical refresh can
When you click “Save”, you can save the current
settings to a “rsl” file. You can also load
settings from a rsl file.
Its worth trying the adjustments to see what happens. You will notice
that if you increase the vertical refresh rate, the horizontal refresh
rate is also increased. This is part of the basic mathematics of video
modes, which this program has to operate within. This is important
because it means that you are constrained within the monitor specs.
If you have a standard resolution monitor, this is specced to run at a
horizontal frequency of 15.7 Khz. Its likely that large changes of
vertical or horizontal refresh will cause the sync to be lost and
adjustment of the vertical or horizontal hold will be required.
should not exceed approx. 18Khz horizontal on a standard resolution
monitor otherwise damage may occur.
Note there is a hotkey to jump back to 640 X 480 if you lose a visible
picture, see later.
This program is intended to be used for “fine
tuning” only, which is why we have only “single
click” changes. Each mouse click changes by one pixel or 0.1
use with MAME:
This is where the hotkeys become useful. You can click
“HELP” for a list of hotkeys.
To set up for a game:
- Start the program
- Start the game
- Use the hotkeys to adjust,
in particular adjust the V refresh to eliminate any scroll tearing
“CTRL-END”. This will lock the settings, change to
640 x 480 and open the file save dialog
- Save the
“rsl” file. You can use the name of the game for
use with Command Line:
You will need to configure the game in Mame to turn off
“Switch Resolution to Fit”.
Then you can run a command-line “arcadeperfect
name.rsl” where “name” is the name of the
saved “rsl” file for that game.
Many front-ends allow command-line programs to be run on game