games/mame: Updated for version 0.159.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

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+.\"  -*- nroff -*-
+.\"
+.\" mess.6
+.\"
+.\" Man page created from usage and source information:
+.\" * commands: see src/emu/clifront.c clifront.h
+.\" * options: core entries, see src/emu/emuopts.c emuopts.h
+.\"            SDL-specific entries, see src/osd/sdl/sdlmain.c osdsdl.h
+.\" Cesare Falco <cesare.falco@gmail.com>, March 2011
+.\"
+.\" Some text borrowed from the xmame 0.106 man page,
+.\" done by Rene Herrmann <rene.herrmann@berlin.de>, September 2000
+.\" and updated by Andrew Burton <burtona@gol.com>, July 2003
+.\"
+.\" Other info's taken from MESS Wiki as well:
+.\" http://mess.redump.net/
+.\"
+.\"
+.TH mess 6 2011-03-02 0.141 "The Multiple Emulator Super System (MESS)"
+.\"
+.\"
+.\" NAME chapter
+.SH NAME
+MESS \- The Multiple Emulator Super System
+.\"
+.\"
+.\" SYNOPSIS chapter
+.SH SYNOPSIS
+.B mess
+.RI [ options ]
+.I system
+.\"
+.\"
+.\" DESCRIPTION chapter
+.SH DESCRIPTION
+MESS documents the hardware for a wide variety of (mostly vintage) computers,
+video game consoles, and calculators through software emulation. As a nice
+side effect, MESS allows software and games for these hardware platforms
+to run on modern PCs.
+.\"
+.\"
+.\" OPTIONS chapter
+.SH OPTIONS
+.\"
+.\" *******************************************************
+.SS Core commands
+.\" *******************************************************
+.TP
+.B \-help, \-?
+Displays current MESS version and copyright notice.
+.TP
+.B \-validate, \-valid
+Performs internal validation on every driver in MESS. Run this
+before submitting changes to ensure that you haven't violated any of
+the core system rules.
+.\"
+.\" *******************************************************
+.SS Configuration commands
+.\" *******************************************************
+.TP
+.B \-createconfig, \-cc
+Creates the default 'mess.ini' file in the current directory. All the
+configuration options (not commands) described below can be permanently
+changed by editing this configuration file.
+.TP
+.B \-showconfig, \-sc
+Displays the current configuration settings.
+.TP
+.B \-showusage, \-su
+Displays a summary of all the command line options. For options that
+are not mentioned here, the short summary given by \-showusage
+is usually sufficient.
+.\"
+.\" *******************************************************
+.SS Frontend commands
+.\" *******************************************************
+All the '\-list' commands below write info to the screen.
+If you wish to write the info to a textfile instead, use redirection.
+For example,
+.B mess \-listxml > ~/messlist.xml
+writes the full list of supported systems to 'messlist.xml' in your
+home directory.
+.TP
+.B \-listxml, \-lx \fR[\fIsystem\fR|\fIwildcard\fR]
+List comprehensive details for all of the supported systems. The output
+is quite long, so it is usually better to redirect this into a file.
+The output is in XML format. By default all systems are listed; however,
+you can limit this list by specifying a driver name or wildcard.
+.TP
+.B \-listfull, \-ll \fR[\fIsystem\fR|\fIwildcard\fR]
+Displays a list of system driver names and descriptions. By default all
+systems are listed; however, you can limit this list by specifying a
+driver name or wildcard.
+.TP
+.B \-listsource, \-ls \fR[\fIsystem\fR|\fIwildcard\fR]
+Displays a list of drivers and the names of the source files their system
+drivers live in. Useful for finding which driver a system runs on in
+order to fix bugs. By default all systems are listed; however, you can
+limit this list by specifying a driver name or wildcard.
+.TP
+.B \-listclones, \-lc \fR[\fIsystem\fR|\fIwildcard\fR]
+Displays a list of clones. By default all clones are listed; however,
+you can limit this list by specifying a driver name or wildcard.
+.TP
+.B \-listbrothers, \-lb \fR[\fIsystem\fR|\fIwildcard\fR]
+Displays a list of "brothers" or other drivers from same sourcefile.
+By default all systems are listed; however, you can limit this list by
+specifying a driver name or wildcard.
+.TP
+.B \-listcrc
+Displays a full list of CRCs of all ROM images referenced by all
+drivers within MESS code.
+.TP
+.B \-listroms \fIsystem
+Displays a list of ROM images referenced by the specified system.
+.TP
+.B \-listsamples \fIsystem
+Displays a list of samples referenced by the specified system.
+.TP
+.B \-verifyroms \fR[\fIsystem\fR|\fIwildcard\fR]
+Checks for invalid or missing ROM images. By default all drivers that
+have valid ZIP files or directories in the rom path are verified;
+however, you can limit this list by specifying a driver name or
+wildcard.
+.TP
+.B \-verifysamples \fR[\fIsystem\fR|\fIwildcard\fR]
+Checks for invalid or missing samples. By default all drivers that
+have valid ZIP files or directories in the samplepath are verified;
+however, you can limit this list by specifying a driver name or wildcard.
+.TP
+.B \-romident
+Attempts to identify ROM files, if they are known to MESS, in the
+specified .zip file or directory. This command can be used to try and
+identify ROM sets taken from unknown boards. On exit, the errorlevel
+is returned as one of the following:
+.RS
+.TP
+.B 0
+all files were identified
+.TP
+.B 7
+all files were identified except for some "non\-ROM" files
+.TP
+.B 8
+some files were identified
+.TP
+.B 9
+no files were identified
+.RE
+.TP
+.B \-listdevices, \-ld
+Output the list of devices referenced by a given system or set of systems.
+.TP
+.B \-listmedia, \-lm
+Output the list of available media for the system.
+.TP
+.B \-listsoftware
+Output the list of known software for the system.
+.\"
+.\" *******************************************************
+.SS Configuration options
+.\" *******************************************************
+.TP
+.B \-[no]readconfig, \-[no]rc
+Enables or disables the reading of the config files. When enabled
+(which is the default), MESS reads the following config files in order:
+.RS
+.TP 15
+.B mess.ini
+the main configuration file
+.TP
+.IB driver .ini
+based on the source file name of the system driver
+.TP
+.IB parent .ini
+for clones only, may be called recursively
+.TP
+.IB system .ini
+note this sometimes resolves to the same of the source driver
+.P
+The settings in the later ini's override those in the earlier ini's.
+The default is ON (\-readconfig).
+.RE
+.\"
+.\" *******************************************************
+.SS Search path options
+.\" *******************************************************
+Be careful to use the path, directory and file options in
+mess.ini ONLY. Otherwise, the outcome may be unpredictable and not
+consistent across releases.
+.TP
+.B \-rompath, \-rp, \-biospath, \-bp \fIpath
+Specifies a list of paths within which to find ROM or hard disk images.
+Multiple paths can be specified by separating them with semicolons.
+The default is 'roms' (that is, a directory 'roms' in the same directory
+as the MESS executable).
+.TP
+.B \-samplepath, \-sp \fIpath
+Specifies a list of paths within which to find sample files. Multiple
+paths can be specified by separating them with semicolons. The default
+is 'samples' (that is, a directory 'samples' in the same directory as
+the MESS executable).
+.TP
+.B \-artpath, \-artwork_directory \fIpath
+Specifies a list of paths within which to find artwork files. Multiple
+paths can be specified by separating them with semicolons. The default
+is 'artwork' (that is, a directory 'artwork' in the same directory as
+the MESS executable).
+.TP
+.B \-ctrlrpath, \-ctrlr_directory \fIpath
+Specifies a list of paths within which to find controller\-specific
+configuration files. Multiple paths can be specified by separating
+them with semicolons. The default is 'ctrlr' (that is, a
+directory 'ctrlr' in the same directory as the MESS executable).
+.TP
+.B \-inipath \fIpath
+Specifies a list of paths within which to find .ini files. Multiple
+paths can be specified by separating them with semicolons. The default
+is '/etc/mess'.
+.TP
+.B \-fontpath \fIpath
+Specifies a list of paths within which to find .bdf font files. Multiple
+paths can be specified by separating them with semicolons. The default
+is '.' (that is, search in the same directory as the MESS executable).
+.TP
+.B \-cheatpath \fIpath
+Specifies a list of paths within which to find cheat files. Multiple
+paths can be specified by separating them with semicolons. The default
+is 'cheat' (that is, a directory 'cheat' in the same directory as
+the MESS executable).
+.TP
+.B \-crosshairpath \fIpath
+Specifies a list of paths within which to find crosshair files. Multiple
+paths can be specified by separating them with semicolons. The default
+is 'crosshair' (that is, a directory 'crosshair' in the same directory as
+the MESS executable).  If the Crosshair is set to default in the menu,
+MESS will look for system/cross#.png and then cross#.png in the
+specified path, where # is the player number.  Failing that,
+MESS will use built\-in default crosshairs.
+.TP
+.B \-hashpath \fIpath
+Specifies a list of paths within which to search for software hash files.
+Multiple paths can be specified by separating them with semicolons.
+The default is 'hash' (that is, a directory 'hash' in the same directory
+as the MESS executable).
+.\"
+.\" *******************************************************
+.SS Output Directory Options
+.\" *******************************************************
+.TP
+.B \-cfg_directory \fIpath
+Specifies a single directory where configuration files are stored.
+Configuration files store user configurable settings that are read at
+startup and written when MESS exits. The default is 'cfg' (that is,
+a directory 'cfg' in the same directory as the MESS executable). If this
+directory does not exist, it will be automatically created.
+.TP
+.B \-nvram_directory \fIpath
+Specifies a single directory where NVRAM files are stored. NVRAM files
+store the contents of EEPROM and non\-volatile RAM (NVRAM) for systems
+which used this type of hardware. This data is read at startup and
+written when MESS exits. The default is 'nvram' (that is, a
+directory 'nvram' in the same directory as the MESS executable). If this
+directory does not exist, it will be automatically created.
+.TP
+.B \-memcard_directory \fIpath
+Specifies a single directory where memory card files are stored. Memory
+card files store the contents of removable memory cards for systems which
+used this type of hardware. This data is read and written under control
+of the user via the 'Memory Card' menu in the user interface. The
+default is 'memcard' (that is, a directory 'memcard' in the same
+directory as the MESS executable). If this directory does not exist,
+it will be automatically created.
+.TP
+.B \-input_directory \fIpath
+Specifies a single directory where input recording files are stored.
+Input recordings are created via the \-record option and played back via
+the \-playback option. The default is 'inp' (that is, a directory 'inp'
+in the same directory as the MESS executable). If this directory
+does not exist, it will be automatically created.
+.TP
+.B \-state_directory \fIpath
+Specifies a single directory where save state files are stored. Save
+state files are read and written either upon user request, or when using
+the \-autosave option. The default is 'sta' (that is, a directory 'sta'
+in the same directory as the MESS executable). If this directory does
+not exist, it will be automatically created.
+.TP
+.B \-snapshot_directory \fIpath
+Specifies a single directory where screen snapshots are stored, when
+requested by the user. The default is 'snap' (that is, a directory 'snap'
+in the same directory as the MESS executable). If this directory
+does not exist, it will be automatically created.
+.TP
+.B \-diff_directory \fIpath
+Specifies a single directory where hard drive differencing files are
+stored. Hard drive differencing files store any data that is written
+back to a hard disk image, in order to preserve the original image. The
+differencing files are created at startup when a system with a hard disk
+image. The default is 'diff' (that is, a directory 'diff' in the same
+directory as the MESS executable). If this directory does not exist,
+it will be automatically created.
+.TP
+.B \-comment_directory \fIpath
+Specifies a single directory where debugger comment files are stored.
+Debugger comment files are written by the debugger when comments are
+added to the disassembly for a system. The default is 'comments' (that is,
+a directory 'comments' in the same directory as the MESS executable).
+If this directory does not exist, it will be automatically created.
+.\"
+.\" *******************************************************
+.SS State/playback options
+.\" *******************************************************
+.TP
+.B \-state \fIslot
+Immediately after starting the specified system, will cause the save
+state in the specified slot to be loaded.
+.TP
+.B \-[no]autosave
+When enabled, automatically creates a save state file when exiting MESS
+and automatically attempts to reload it when later starting MESS with
+the same system. This only works for systems that have explicitly enabled
+save state support in their driver. The default is OFF (\-noautosave).
+.TP
+.B \-playback, \-pb \fIfile
+Specifies a file from which to play back a series of system inputs. This
+feature does not work reliably for all systems, but can be used to watch
+a previously recorded system session from start to finish. In order to
+make things consistent, you should only record and playback with all
+configuration (.cfg), NVRAM (.nv), and memory card files deleted. The
+default is NULL (no playback).
+.TP
+.B \-record, \-rec \fIfile
+Specifies a file to record all input from a system session. This can be
+used to record a system session for later playback. This feature does not
+work reliably for all systems, but can be used to watch a previously
+recorded system session from start to finish. In order to make things
+consistent, you should only record and playback with all configuration
+(.cfg), NVRAM (.nv), and memory card files deleted. The default is NULL
+(no recording).
+.TP
+.B \-snapname \fIname
+Describes how MESS should name files for snapshots.
+.I name
+is a string that provides a template that is used to generate a file name.
+Three simple substitutions are provided:
+.RS
+.TP
+.B /
+represents the path separator on any target platform (even Windows)
+.TP
+.B %g
+represents the driver name of the current system
+.TP
+.B %i
+represents an incrementing index. If omitted, then each snapshot taken
+will overwrite the previous one; otherwise, MESS will find the next
+empty value for %i and use that for a file name.
+.P
+The default is '%g/%i', which creates a separate folder for each system,
+and names the snapshots under it starting with 0000 and increasing
+from there.
+.RE
+.TP
+.B \-snapsize \fIwidth\fRx\fIheight
+Hard\-codes the size for snapshots and movie recording. By default,
+MESS will create snapshots at the system's current resolution in raw
+pixels, and will create movies at the system's starting resolution in
+raw pixels. If you specify this option, then MESS will create both
+snapshots and movies at the size specified, and will bilinear filter
+the result. Note that this size does not automatically rotate if the
+system is vertically oriented. The default is 'auto'.
+.TP
+.B \-snapview internal\fR|\fBauto\fR|\fIview
+Specifies the view to use when rendering snapshots and movies.
+.RS
+.TP 12
+.B internal
+renders a separate snapshot per screen or renders movies only of the
+first screen using the special 'internal' view.
+.TP
+.B auto
+selects the first view with all screens present
+.TP
+.I view
+select the first view whose name matches all the characters.
+For example,
+.B mame \-snapview native
+will match the "Native (15:14)" view even though it is not a perfect
+match.
+.P
+The default value is 'internal'.
+.RE
+.TP
+.B \-mngwrite \fIfile
+Writes each video frame to the given file in MNG format, producing
+an animation of the system session.
+Note that \-mngwrite only writes video frames; it does not save any audio
+data. Use \-wavwrite for that, and reassemble the audio/video using
+offline tools. The default is NULL (no recording).
+.TP
+.B \-aviwrite \fIfile
+Stream video and sound data to the given file
+in AVI format, producing an animation of the system session complete
+with sound. The default is NULL (no recording).
+.TP
+.B \-wavwrite \fIfile
+Writes the final mixer output to the given file
+in WAV format, producing an audio recording of the system session.
+The default is NULL (no recording).
+.TP
+.B \-[no]burnin
+Tracks brightness of the screen during play and at the end of
+emulation generates a PNG that can be used to simulate burn\-in
+effects on other systems. The resulting PNG is created such that the
+least\-used areas of the screen are fully white (since burned\-in areas
+are darker, all other areas of the screen must be lightened a touch).
+The intention is that this PNG can be loaded via an artwork file with
+a low alpha (e.g, 0.1\-0.2 seems to work well) and blended over the
+entire screen. The PNG files are saved in the snap directory under
+the system/burnin\-<screen.name>.png. The default is OFF (\-noburnin).
+.\"
+.\" *******************************************************
+.SS Performance options
+.\" *******************************************************
+.TP
+.B \-[no]autoframeskip, \-[no]afs
+Automatically determines the frameskip level while you're playing the
+system, adjusting it constantly in a frantic attempt to keep the system
+running at full speed. Turning this on overrides the value you have set
+for \-frameskip below. The default is OFF (\-noautoframeskip).
+.TP
+.B \-frameskip, \-fs \fIvalue
+Specifies the frameskip value (autoframeskip must be disabled). This is the
+number of frames out of every 12 to drop when running. For example, if you
+say \-frameskip 2, then MESS will display 10 out of every 12 frames. By
+skipping those frames, you may be able to get full speed in a system that
+requires more horsepower than your computer has. The default value is 0,
+which skips no frames.
+.TP
+.B \-seconds_to_run, \-str \fIvalue
+This option can be used for benchmarking and automated testing. It tells
+MESS to stop execution after a fixed number of seconds. By combining
+this with a fixed set of other command line options, you can set up a
+consistent environment for benchmarking MESS performance. In addition,
+upon exit, the \-str option will write a screenshot called final.png
+to the system's snapshot directory.
+.TP
+.B \-[no]throttle
+Configures the default thottling setting. When throttling is on, MESS
+attempts to keep the system running at the system's intended speed. When
+throttling is off, MESS runs the system as fast as it can. Note that the
+fastest speed is more often than not limited by your graphics card,
+especially for older systems. The default is ON (\-throttle).
+.TP
+.B \-[no]sleep
+Allows MESS to give time back to the system when running with \-throttle.
+This allows other programs to have some CPU time, assuming that the
+system isn't taxing 100% of your CPU resources. This option can potentially
+cause hiccups in performance if other demanding programs are running.
+The default is ON (\-sleep).
+.TP
+.B \-speed
+Controls the speed of gameplay, relative to realtime; smaller numbers are
+slower. Default is 1.00.
+.TP
+.B \-refreshspeed, \-rs
+Automatically adjusts the \-speed parameter to keep the effective refresh
+rate below that of the lowest screen refresh rate.
+.\"
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.\" SDL specific
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.TP
+.B \-multithreading, \-mt
+Enable multithreading; this enables rendering and blitting on a separate
+thread. The default is OFF.
+.TP
+.B \-numprocessors, \-np
+Set number of processors; this overrides the number the system reports.
+.TP
+.B \-sdlvideofps
+Show SDL video performance.
+.\"
+.\" *******************************************************
+.SS Rotation options
+.\" *******************************************************
+.TP
+.B \-[no]rotate
+Rotate the system to match its normal state (horizontal/vertical). This
+ensures that both vertically and horizontally oriented systems show up
+correctly without the need to rotate your monitor. If you want to keep
+the system displaying 'raw' on the screen the way the actual machine would
+have, turn this option off. The default is ON (\-rotate).
+.TP
+.B \-[no]ror
+.TP
+.B \-[no]rol
+Rotate the system screen to the right (clockwise) or left
+(counter\-clockwise) relative to either its normal state (if \-rotate
+is specified) or its native state (if \-norotate is specified). The
+default for both of these options is OFF (\-noror \-norol).
+.TP
+.B \-[no]autoror
+.TP
+.B \-[no]autorol
+These options are designed for use with pivoting screens that only
+pivot in a single direction. If your screen only pivots clockwise,
+use \-autorol to ensure that the system will fill the screen either
+horizontally or vertically in one of the directions you can handle.
+If your screen only pivots counter\-clockwise, use \-autoror.
+.TP
+.B \-[no]flipx
+.TP
+.B \-[no]flipy
+Flip (mirror) the system screen either horizontally (\-flipx) or
+vertically (\-flipy). The flips are applied after the \-rotate and
+\-ror/\-rol options are applied. The default for both of these options
+is OFF (\-noflipx \-noflipy).
+.\"
+.\" *******************************************************
+.SS Artwork options
+.\" *******************************************************
+.TP
+.B \-[no]artwork_crop, \-[no]artcrop
+Enable cropping of artwork to the system screen area only. This
+option can also be controlled via the Video Options menu in the user
+interface. The default is OFF (\-noartwork_crop).
+.TP
+.B \-[no]use_backdrops, \-[no]backdrop
+Enables/disables the display of backdrops. The default is ON
+(\-use_backdrops).
+.TP
+.B \-[no]use_overlays, \-[no]overlay
+Enables/disables the display of overlays. The default is ON
+(\-use_overlays).
+.TP
+.B \-[no]use_bezels, \-[no]bezel
+Enables/disables the display of bezels. The default is ON
+(\-use_bezels).
+.\"
+.\" *******************************************************
+.SS Screen options
+.\" *******************************************************
+.TP
+.B \-brightness \fIvalue
+Controls the default brightness, or black level, of the system screens.
+This option does not affect the artwork or other parts of the display.
+Using the MESS UI, you can individually set the brightness for each system
+screen; this option controls the initial value for all visible system
+screens. The standard value is 1.0. Selecting lower values (down to 0.1)
+will produce a darkened display, while selecting higher values (up to
+2.0) will give a brighter display. The default is 1.0.
+.TP
+.B \-contrast \fIvalue
+Controls the contrast, or white level, of the system screens. This option
+does not affect the artwork or other parts of the display. Using the
+MESS UI, you can individually set the contrast for each system screen;
+this option controls the initial value for all visible system screens. The
+standard value is 1.0. Selecting lower values (down to 0.1) will produce
+a dimmer display, while selecting higher values (up to 2.0) will
+give a more saturated display. The default is 1.0.
+.TP
+.B \-gamma \fIvalue
+Controls the gamma, which produces a potentially nonlinear black to
+white ramp, for the system screens. This option does not affect the
+artwork or other parts of the display. Using the MESS UI, you can
+individually set the gamma for each system screen; this option controls
+the initial value for all visible system screens. The standard value is
+1.0, which gives a linear ramp from black to white. Selecting lower
+values (down to 0.1) will increase the nonlinearity toward black,
+while selecting higher values (up to 3.0) will push the nonlinearity
+toward white. The default is 1.0.
+.TP
+.B \-pause_brightness \fIvalue
+This controls the brightness level when MESS is paused. The default
+value is 0.65.
+.\"
+.\" *******************************************************
+.SS Vector rendering options
+.\" *******************************************************
+.TP
+.B \-[no]antialias, \-[no]aa
+Enables antialiased line rendering for vector systems. The default is ON
+(\-antialias).
+.TP
+.B \-beam \fIwidth
+Sets the width of the vectors. This is a scaling factor against the
+standard vector width. A value of 1.0 will keep the default vector line
+width. Smaller values will reduce the width, and larger values will
+increase the width. The default is 1.0.
+.TP
+.B \-flicker \fIvalue
+Simulates a vector "flicker" effect, similar to a vector monitor that
+needs adjustment. This option requires a float argument in the range of
+0.00\-100.00 (0=none, 100=maximum). The default is 0.
+.\"
+.\" *******************************************************
+.SS Video options
+.\" *******************************************************
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.\" SDL specific
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.TP
+.B \-video soft\fR|\fBopengl\fR|\fBopengl16\fR|\fBnone
+Specifies which video subsystem to use for drawing:
+.RS
+.TP 12
+.B soft
+uses software rendering, which is slower but more compatible.
+.TP
+.B opengl
+uses OpenGL and your graphics accelerator to speed up many
+aspects of drawing MESS including compositing artwork, overlays, and
+bezels, as well as stretching the image to fit your screen.
+.TP
+.B opengl16
+uses alternate OpenGL code, which should provide faster
+output on some cards.
+.TP
+.B none
+does no drawing and is intended for CPU benchmarking.
+.P
+Default is 'soft'.
+.RE
+.TP
+.B \-[no]window, \-[no]w
+Run MESS in either full screen or a window. This is a fully\-featured window
+mode where the window resizes as necessary to track what the system does.
+And you can resize it yourself with your OS's standard window controls.
+The default is OFF (\-nowindow).
+.TP
+.B \-[no]maximize, \-[no]max
+Controls initial window size in windowed mode. If it is set on, the
+window will initially be set to the maximum supported size when you
+start MESS. If it is turned off, the window will start out at the
+smallest supported size. This option only has an effect when the
+\-window option is used. The default is ON (\-maximize).
+.TP
+.B \-keepaspect, \-ka
+Forces the correct aspect ratio. This means when you're resizing the window
+in windowed mode the actual system image will resize in discrete steps to
+maintain the proper shape of the system graphics. If you turn this off you can
+resize the window to anything you like and get funny squishing and stretching.
+The same applies for full\-screen. Default is ON (\-keepaspect).
+.TP
+.B \-unevenstretch, \-ues
+Allow non\-integer stretch factors. Video purists should stay far, far away
+from this option, while everyone else will be happy to know that it lets you
+fill the screen properly in full\-screen mode. Default is ON (\-unevenstretch).
+.TP
+.B \-effect none\fR|\fIfile
+Name of a PNG file to use for visual effects, or 'none'. Default is 'none'.
+.TP
+.B \-centerh
+Center horizontally within the view area. Default is ON (\-centerh).
+.TP
+.B \-centerv
+Center vertically within the view area. Default is ON (\-centerv).
+.TP
+.B \-waitvsync
+Enable waiting for the start of VBLANK before flipping screens;
+reduces tearing effects.
+.\"
+.\" *******************************************************
+.SS Software video rendering subsystem options
+.\" *******************************************************
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.\" SDL specific
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+All the options in this group are available only with softare video
+rendering subsystem (\-video soft).
+.TP
+.B \-prescale \fIvalue
+Scale screen rendering by this amount in software. Default is 1.
+.TP
+.B \-scalemode, \-sm none\fR|\fBasync\fR|\fByv12\fR|\fByuy2\fR\
+|\fByv12x2\fR|\fByuy2x2
+Hardware scaling mode.
+.RS
+.TP 12
+.B none
+use software rendering
+.TP
+.B async
+async overlay
+.TP
+.B yv12
+yv12 overlay
+.TP
+.B yuy2
+yuy2 overlay
+.TP
+.B yv12x2
+yv12 overlay using x2 prescaling
+.TP
+.B yuy2x2
+yuy2 overlay using x2 prescaling
+.P
+Default is 'none'.
+.RE
+.\"
+.\" *******************************************************
+.SS OpenGL video rendering subsystem options
+.\" *******************************************************
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.\" SDL specific
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+All the options in this group are available only with OpenGL video
+rendering subsystem (\-video opengl or \-video opengl16).
+.TP
+.B \-filter, \-glfilter, \-flt
+Enable bilinear filtering on screen output. Default is ON (\-filter).
+.TP
+.B \-gl_forcepow2texture
+Force power of two textures. Default is NO.
+.TP
+.B \-gl_notexturerect
+Don't use OpenGL GL_ARB_texture_rectangle. Default is ON: turn off
+(set this to 0) if corruption occurs in OpenGL mode, at cost of some
+performance loss.
+.TP
+.B \-gl_vbo
+Enable OpenGL VBO, if available, for a performance increase.
+Default is ON: turn off (set this to 0) if corruption occurs.
+.TP
+.B \-gl_pbo
+Enable OpenGL PBO, if available, for a performance increase.
+Default is ON: turn off (set this to 0) if corruption occurs.
+.TP
+.B \-gl_glsl
+Enable OpenGL GLSL, if available, for a performance increase.
+.TP
+.B \-gl_glsl_filter \fIvalue
+Enable OpenGL GLSL filtering instead of FF filtering. Allowed values are
+.RS
+.TP 8
+.B 0
+plain
+.TP
+.B 1
+bilinear
+.P
+Default is 1.
+.RE
+.TP
+.BR \-glsl_shader_mame #
+Preferred custom OpenGL GLSL shader set mame bitmap, with # ranging
+from 0 to 9.
+.TP
+.BR \-glsl_shader_screen #
+Preferred custom OpenGL GLSL shader screen bitmap, with # ranging
+from 0 to 9.
+.TP
+.B \-gl_glsl_vid_attr
+Enable OpenGL GLSL handling of brightness and contrast. Better RGB system
+performance for free. Default is ON.
+.TP
+.B \-resolution, \-r
+Select the resolution to use in full\-screen mode; \-switchres must
+be enabled for this to work.
+.\"
+.\" *******************************************************
+.SS Full screen options
+.\" *******************************************************
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.\" SDL specific
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.TP
+.B \-[no]switchres
+Affects full screen mode only. Chooses if MESS can try to change the
+screen resolution (color depth is normally left alone) when in
+full\-screen mode. If it's off, you always get your desktop resolution
+in full\-screen mode (which can be useful for LCDs).
+.TP
+.B \-useallheads
+Split full screen image across monitors.
+.\"
+.\" *******************************************************
+.SS Sound options
+.\" *******************************************************
+.TP
+.B \-[no]sound
+Enable or disable sound altogether. The default is ON (\-sound).
+.TP
+.B \-samplerate, \-sr \fIvalue
+Sets the audio sample rate. Smaller values (e.g. 11025) cause lower
+audio quality but faster emulation speed. Higher values (e.g. 48000)
+cause higher audio quality but slower emulation speed. The default is
+48000.
+.TP
+.B \-[no]samples
+Use samples if available. The default is ON (\-samples).
+.TP
+.B \-volume, \-vol \fIvalue
+Sets the startup volume. It can later be changed with the user interface
+(see Keys section). The volume is an attenuation in dB:
+for example, '\-volume \-12' will start with \-12dB attenuation.
+The default is 0.
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.\" SDL specific
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.TP
+.B \-audio_latency \fIvalue
+This controls the amount of latency built into the audio streaming.
+The latency parameter controls the lower threshold. The default is 3;
+increase to reduce glitches, decrease for responsiveness.
+.\"
+.\" *******************************************************
+.SS Input options
+.\" *******************************************************
+.TP
+.B \-[no]coin_lockout, \-[no]coinlock
+Enables simulation of the "coin lockout" feature that is implemented
+on a number of arcade game PCBs. It was up to the operator whether or not
+the coin lockout outputs were actually connected to the coin
+mechanisms. If this feature is enabled, then attempts to enter a coin
+while the lockout is active will fail and will display a popup message
+in the user interface. If this feature is disabled, the coin lockout
+signal will be ignored. The default is ON (\-coin_lockout).
+.TP
+.B \-ctrlr \fIcontroller
+Enables support for special controllers. Configuration files are
+loaded from the ctrlrpath. They are in the same format as the .cfg
+files that are saved, but only control configuration data is read
+from the file. The default is NULL (no controller file).
+.TP
+.B \-[no]mouse
+Controls whether or not MESS looks for a mouse controller to use. Note
+that in many cases, lightguns are treated as mice by the operating
+system, so you may need to enable this to enable lightgun support. When
+this is enabled, you will not be able to use your mouse while running
+MESS. If you want to get control of your computer back, you will need
+to either pause MESS or quit. The default is OFF (\-nomouse).
+.TP
+.B \-[no]joystick, \-[no]joy
+Controls whether or not MESS looks for joystick/gamepad controllers.
+The default is ON (\-joystick).
+.TP
+.B \-[no]lightgun, \-[no]gun
+Controls whether or not MESS makes use of lightgun controllers.
+Note that most lightguns map to the mouse, so using \-lightgun and
+\-mouse together may produce strange results. The default is OFF
+(\-nolightgun).
+.TP
+.B \-[no]multikeyboard, \-[no]multikey
+Determines whether MESS differentiates between multiple keyboards.
+Some systems may report more than one keyboard; by default, the data
+from all of these keyboards is combined so that it looks like a single
+keyboard. Turning this option on will enable MESS to report keypresses
+on different keyboards independently. The default is OFF
+(\-nomultikeyboard).
+.TP
+.B \-[no]multimouse
+Determines whether MESS differentiates between multiple mice. Some
+systems may report more than one mouse device; by default, the data
+from all of these mice is combined so that it looks like a single
+mouse. Turning this option on will enable MESS to report mouse
+movement and button presses on different mice independently. The
+default is OFF (\-nomultimouse).
+.TP
+.B \-[no]steadykey, \-[no]steady
+Some systems require two or more buttons to be pressed at exactly the
+same time to make special moves. Due to limitations in the PC keyboard
+hardware, it can be difficult or even impossible to accomplish that
+using the standard keyboard handling. This option selects a different
+handling that makes it easier to register simultaneous button presses,
+but has the disadvantage of making controls less responsive. The
+default is OFF (\-nosteadykey).
+.TP
+.B \-[no]offscreen_reload, \-[no]reload
+Controls whether or not MESS treats a second button input from a
+lightgun as a reload signal. In this case, MESS will report the gun's
+position as (0,MAX) with the trigger held, which is equivalent to an
+offscreen reload. This is only needed for systems that required you to
+shoot offscreen to reload, and then only if your gun does not support
+off screen reloads. The default is OFF (\-nooffscreen_reload).
+.TP
+.B \-joystick_map, \-joymap \fImap
+Controls how joystick values map to digital joystick controls.
+See /usr/share/doc/mame\-common/config.txt for full details on
+joymap format.
+.TP
+.B \-joystick_deadzone, \-joy_deadzone, \-jdz \fIvalue
+If you play with an analog joystick, the center can drift a little.
+joystick_deadzone tells how far along an axis you must move before the
+axis starts to change. This option expects a float in the range of
+0.0 to 1.0. Where 0 is the center of the joystick and 1 is the outer
+limit. The default is 0.3.
+.TP
+.B \-joystick_saturation, \-joy_saturation, \-jsat \fIvalue
+If you play with an analog joystick, the ends can drift a little,
+and may not match in the +/\- directions. joystick_saturation tells how
+far along an axis movement change will be accepted before it reaches
+the maximum range. This option expects a float in the range of 0.0 to
+1.0, where 0 is the center of the joystick and 1 is the outer limit.
+The default is 0.85.
+.TP
+.B \-natural, \-nat
+Specifies whether to use a natural keyboard or not.
+.TP
+.B \-uimodekey, \-umk
+Specifies the key used to toggle between full and partial UI mode.
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.\" SDL specific
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.TP
+.B \-keymap
+Enable keymap for non\-QWERTY keyboards. Used in conjunction
+with \-keymap_file.
+.TP
+.B \-keymap_file \fIfile
+Specifies the full path to the keymap file to be used. A few
+keymap files are available in /usr/share/games/mame\-common/keymaps.
+.TP
+.B \-joy_idx1 \fIjoystick
+.TP
+.B \-joy_idx2 \fIjoystick
+.TP
+.B \-joy_idx3 \fIjoystick
+.TP
+.B \-joy_idx4 \fIjoystick
+.TP
+.B \-joy_idx5 \fIjoystick
+.TP
+.B \-joy_idx6 \fIjoystick
+.TP
+.B \-joy_idx7 \fIjoystick
+.TP
+.B \-joy_idx8 \fIjoystick
+With these options you can assign a joystick to a
+specific index in MESS. Even if the kernel will list the joysticks
+in a different order on the next boot, MESS will still see the joystick
+as e.g. 'Joystick 2'. Use
+.B mess \-v
+to see which joysticks are recognized. Default is AUTO.
+.TP
+.B \-sixaxis
+Use special handling for PS3 Sixaxis controllers.
+.TP
+.B \-videodriver, \-vd x11\fR|\fBdirectfb\fR|\fBauto
+SDL video driver to use; auto selects SDL default.
+.TP
+.B \-audiodriver, \-ad alsa\fR|\fBarts\fR|\fBauto
+SDL audio driver to use; auto selects SDL default.
+.TP
+.B \-gl_lib alsa\fR|\fBarts\fR|\fBauto
+Alternative libGL.so to use; auto selects SDL default.
+.\"
+.\" *******************************************************
+.SS Input automatic enable options
+.\" *******************************************************
+.TP
+.B \-paddle_device, \-paddle none\fR|\fBkeyboard\fR|\fBmouse\fR\
+|\fBlightgun\fR|\fBjoystick
+.TP
+.B \-adstick_device, \-adstick none\fR|\fBkeyboard\fR|\fBmouse\fR\
+|\fBlightgun\fR|\fBjoystick
+.TP
+.B \-pedal_device, \-pedal none\fR|\fBkeyboard\fR|\fBmouse\fR\
+|\fBlightgun\fR|\fBjoystick
+.TP
+.B \-dial_device, \-dial none\fR|\fBkeyboard\fR|\fBmouse\fR\
+|\fBlightgun\fR|\fBjoystick
+.TP
+.B \-trackball_device, \-trackball none\fR|\fBkeyboard\fR|\fBmouse\fR\
+|\fBlightgun\fR|\fBjoystick
+.TP
+.B \-lightgun_device none\fR|\fBkeyboard\fR|\fBmouse\fR\
+|\fBlightgun\fR|\fBjoystick
+.TP
+.B \-positional_device none\fR|\fBkeyboard\fR|\fBmouse\fR\
+|\fBlightgun\fR|\fBjoystick
+.TP
+.B \-mouse_device none\fR|\fBkeyboard\fR|\fBmouse\fR\
+|\fBlightgun\fR|\fBjoystick
+Each of these options controls auto\-enabling the mouse, or joystick
+depending on the presence of a particular class of analog
+control for a particular system. For example, if you specify the option
+\-paddle mouse, then any system that has a paddle control will automatically
+enable mouse controls just as if you had explicitly specified \-mouse.
+Note that these controls override the values of \-[no]mouse,
+\-[no]joystick, etc.
+.\"
+.\" *******************************************************
+.SS Debugging options
+.\" *******************************************************
+.TP
+.B \-[no]log
+Creates a file called error.log which contains all of the internal
+log messages generated by the MESS core and system drivers. The default
+is OFF (\-nolog).
+.TP
+.B \-[no]verbose, \-[no]v
+Displays internal diagnostic information. This information is very
+useful for debugging problems with your configuration.
+Please use the \-verbose option and include the resulting information
+when reporting bugs. The default is OFF (\-noverbose).
+.TP
+.B \-update_in_pause
+Enables updating the screen bitmap while the system is paused. This is
+useful for debuggin in some scenarios (and gets in the way in others).
+.TP
+.B \-[no]debug, \-[no]d
+Activates the integrated debugger. By default, the debugger is entered
+by pressing the tilde (~) key during emulation. It is also entered
+immediately at startup. The default is OFF (\-nodebug).
+.TP
+.B \-debugscript \fIfile
+Specifies a file that contains a list of debugger commands to execute
+immediately upon startup. The default is NULL (no commands).
+.TP
+.B \-debug_internal, \-di
+Use the internal debugger for debugging.
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.\" SDL specific
+.\" +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+.TP
+.B \-[no]oslog
+Outputs the error.log data to the system debugger. This can be used at
+the same time as \-log to output the log data to both targets as well.
+Default is OFF (\-nooslog).
+.\"
+.\" *******************************************************
+.SS UI options
+.\" *******************************************************
+.TP
+.B \-uifont
+Specify a font to use.
+.TP
+.B \-newui, \-nu
+Use the new MESS UI.
+.\"
+.\" *******************************************************
+.SS Misc options
+.\" *******************************************************
+.TP
+.B \-bios default\fR|\fIbios
+Specifies the specific BIOS to use with the current system, for
+systems that make use of a BIOS. The \-listxml output will list all of
+the possible BIOS names for a system. The default is 'default'.
+.TP
+.B \-[no]cheat, \-[no]c
+Enables the reading of the cheat database, if present, and the Cheat
+menu in the user interface. The	default is OFF (\-nocheat).
+.TP
+.B \-[no]skip_gameinfo
+Forces MESS to skip displaying the system info screen. The default is OFF
+(\-noskip_gameinfo).
+.TP
+.B \-ramsize, \-ram
+Size of RAM (if supported by driver).
+.TP
+.B \-writeconfig, \-wc
+Writes configuration to
+.IB driver .ini
+on exit.
+.\"
+.\"
+.\" FILES chapter
+.SH FILES
+.TP
+.B /etc/mess/mess.ini
+Main configuration file