Provided by: mame_0.160-0ubuntu1_amd64 bug

NAME

       MAME - The Multiple Arcade Machine Emulator

SYNOPSIS

       mame [options] gamename

DESCRIPTION

       Started  in 1997 by Nicola Salmoria, MAME was originally intended as a series of emulators
       for individual games, which were later combined into a single multi-game emulator. In  the
       following  years,  MAME  grew  over  and  over  up  to the actual size, with more than 100
       contributors to the project.

OPTIONS

   Core commands
       -help, -?
              Displays current MAME version and copyright notice.

       -validate, -valid
              Performs internal validation on  every  driver  in  the  system.  Run  this  before
              submitting  changes  to  ensure  that  you  haven't violated any of the core system
              rules.

   Configuration commands
       -createconfig, -cc
              Creates the default mame.ini file in the current directory. All  the  configuration
              options  (not  commands) described below can be permanently changed by editing this
              configuration file.

       -showconfig, -sc
              Displays the current configuration settings.

       -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.

   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, mame -listxml > ~/mamelist.xml writes the
       full list of supported game to file mamelist.xml in your home directory.

       -listxml, -lx [gamename|wildcard]
              List  comprehensive  details  for  all  of the supported games. 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  games  are  listed;  however, you can limit this list by
              specifying a driver name or wildcard after the -listxml command.

       -listfull, -ll [gamename|wildcard]
              Displays a list of game driver names and descriptions. By  default  all  games  are
              listed;  however,  you  can limit this list by specifying a driver name or wildcard
              after the -listfull command.

       -listsource, -ls [gamename|wildcard]
              Displays a list of drivers and the names of the source  files  their  game  drivers
              live  in.  Useful  for finding which driver a game runs on in order to fix bugs. By
              default all games are listed; however, you can limit  this  list  by  specifying  a
              driver name or wildcard after the -listsource command.

       -listclones, -lc [gamename|wildcard]
              Displays a list of clones. By default all clones are listed; however, you can limit
              this list by specifying a driver name or wildcard after the -listclones command.

       -listbrothers, -lb [gamename|wildcard]
              Displays a list of "brothers" or other drivers from same  sourcefile.   By  default
              all  games are listed; however, you can limit this list by specifying a driver name
              or wildcard after the -listbrothers command.

       -listcrc
              Displays a full list of CRCs of all ROM images referenced  by  all  drivers  within
              MAME code.

       -listroms, -lr gamename
              Displays a list of ROM images referenced by the specified game.

       -listsamples gamename
              Displays a list of samples referenced by the specified game.

       -verifyroms [gamename|wildcard]
              Checks  for  invalid  or missing ROM images. By default all drivers that have valid
              ZIP files or directories in the rompath are verified; however, you can  limit  this
              list by specifying a driver name or wildcard after the -verifyroms command.

       -verifysamples [gamename|wildcard]
              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 after the -verifyroms command.

       -romident
              Attempts  to  identify  ROM files, if they are known to MAME, 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:
              0  all files were identified
              7  all files were identified except for some "non-ROM" files
              8  some files were identified
              9  no files were identified

       -listdevices, -ld
              Output the list of devices referenced by a given game or set of games.

       -listslots, -lslot
              Output the list of available slots and slot devices for the system.

       -listmedia, -lm
              Output the list of available media for the system.

       -listsoftware, -lsoft
              Output the list of known software for the system.

       -verifysoftware, -vsoft [gamename|wildcard]
              Checks  for  invalid  or missing ROM images in your software lists.  By default all
              drivers that have valid ZIP files or  directories  in  the  rompath  are  verified;
              however, you can limit this list by specifying a specific driver name or wildcard.

       -getsoftlist, -glist
              Retrieve software list by name.

       -verifysoftlist, -vlist [softwarelistname]
              Checks  a  specified software list for missing ROM images if files exist for issued
              softwarelistname. By default, all drivers that have valid ZIP files or  directories
              in  the  rompath  are  verified;  however,  you can limit this list by specifying a
              specific softwarelistname (without .XML).

       -listmidi, -mlist
              Create a list of list available MIDI I/O devices for use with emulation.

       -listnetwork, -nlist
              List available network adapters.

   Configuration options
       -[no]readconfig, -[no]rc
              Enables or disables the reading of the config files. When  enabled  (which  is  the
              default), MAME reads the following config files in order:
              1. mame.ini
              the main configuration file
              2. name.ini
              where  name  is  your executable name, i.e. mame unless you changed it (e.g. if you
              renamed mame to mame0137, the parsed file will be mame0137.ini)
              3. debug.ini, if the debugger is enabled
              4. vector.ini, for vector games only
              5. [driver].ini
              based on the source filename of the game driver
              6. [parent].ini
              for clones only, may be called recursively
              7. [gamename].ini
              note this sometimes resolves to the same of the source driver
              The settings in the later ini's override those  in  the  earlier  ini's.   So,  for
              example,  if  you  wanted  to  disable overlay effects in the vector games, you can
              create a vector.ini with the "effect  none"  line  in  it,  and  it  will  override
              whatever effect value you have in your mame.ini. The default is ON (-readconfig).

       -[no]writeconfig, -[no]wc
              Write configuration to [driver].ini on exit.  Default is OFF (-nowriteconfig).

   Search path options
       Be  careful  to  use the path, directory and file options in mame.ini ONLY. Otherwise, the
       outcome may be unpredictable and not consistent across releases.

       -rompath, -rp, -biospath, -bp pathname
              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 MAME executable).

       -hashpath pathname
              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 MAME executable).

       -samplepath, -sp pathname
              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 MAME executable).

       -artpath, -artwork_directory pathname
              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 MAME executable).

       -ctrlrpath, -ctrlr_directory pathname
              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  MAME
              executable).

       -inipath pathname
              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/mame/'.

       -fontpath pathname
              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 MAME executable).

       -cheatpath pathname
              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 MAME executable).

       -crosshairpath pathname
              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 MAME executable).  If  the
              Crosshair  is  set  to  default  in  the menu, MAME will look for gamenamespecified
              crosshairpath, where # is the player number.  Failing that, MAME will use  built-in
              default crosshairs.

   Output Directory Options
       -cfg_directory pathname
              Specifies  a  single directory where configuration files are stored.  Configuration
              files store user configurable settings that are read at startup  and  written  when
              MAME  exits. The default is 'cfg' (that is, a directory "cfg" in the same directory
              as the MAME executable). If this directory does not exist, it will be automatically
              created.

       -nvram_directory pathname
              Specifies  a  single  directory where NVRAM files are stored. NVRAM files store the
              contents of EEPROM and non-volatile RAM (NVRAM) for games which used this  type  of
              hardware.  This data is read at startup and written when MAME exits. The default is
              'nvram'  (that  is,  a  directory  "nvram"  in  the  same  directory  as  the  MAME
              executable). If this directory does not exist, it will be automatically created.

       -input_directory pathname
              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 MAME executable). If this directory does not exist, it  will  be  automatically
              created.

       -state_directory pathname
              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 MAME
              executable). If this directory does not exist, it will be automatically created.

       -snapshot_directory pathname
              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 MAME executable). If this directory does not exist, it will be automatically
              created.

       -diff_directory pathname
              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 game with a hard disk image. The  default  is  'diff'  (that  is,  a
              directory  "diff"  in the same directory as the MAME executable). If this directory
              does not exist, it will be automatically created.

       -comment_directory pathname
              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 game. The default is 'comments' (that is, a directory  "comments"
              in  the  same directory as the MAME executable).  If this directory does not exist,
              it will be automatically created.

   State/playback options
       -state slot
              Immediately after starting the specified game, will cause the  save  state  in  the
              specified slot to be loaded.

       -[no]autosave
              When  enabled,  automatically  creates  a  save  state  file  when exiting MAME and
              automatically attempts to reload it when later starting MAME with  the  same  game.
              This  only works for games that have explicitly enabled save state support in their
              driver. The default is OFF (-noautosave).

       -playback, -pb filename
              Specifies a file from which to play back a series of game inputs. This feature does
              not  work  reliably  for  all games, but can be used to watch a previously recorded
              game 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).

       -record, -rec filename
              Specifies a file to record all input from a game  session.  This  can  be  used  to
              record  a  game session for later playback. This feature does not work reliably for
              all games, but can be used to watch a previously recorded game 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).

       -mngwrite filename
              Writes each video frame to the given filename in MNG format, producing an animation
              of the  game 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).

       -aviwrite filename
              Stream video and sound data to the given  filename  in  AVI  format,  producing  an
              animation  of  the  game  session  complete  with  sound.  The  default is NULL (no
              recording).

       -wavwrite filename
              Writes the final mixer output to the given filename in  WAV  format,  producing  an
              audio recording of the  game session. The default is NULL (no recording).

       -snapname string
              Describes how MAME should name files for snapshots. string provides a template that
              is used to generate a filename. Three simple  substitutions  are  provided:  the  /
              character  represents the path separator on any target platform (even Windows); the
              literal %g represents the driver name of the  current  game;  and  the  literal  %i
              represents  an  incrementing index. If %i is omitted, then each snapshot taken will
              overwrite the previous one; otherwise, MAME will find the next empty value  for  %i
              and  use that for a filename. The default is %g/%i, which creates a separate folder
              for each game, and names the snapshots under it starting with 0000  and  increasing
              from  there.  Example:  if  you use mame robby -snapname foo/%g%i snapshots will be
              saved as snaps/foo/robby0000.png, snaps/foo/robby0001.png and so on.

       -snapsize widthxheight
              Hard-codes the size for snapshots and movie recording. By default, MAME will create
              snapshots at the game's current resolution in raw pixels, and will create movies at
              the game's starting resolution in raw pixels. If you specify this option, then MAME
              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 game is
              vertically oriented. The default is 'auto'.

       -snapview internal|auto|viewname
              Specifies the view to use when rendering snapshots and movies. By default, both use
              a special 'internal' view, which renders a separate snapshot per screen or  renders
              movies  only  of the first screen. By specifying this option, you can override this
              default behavior and select a single view that will  apply  to  all  snapshots  and
              movies.   Note  that  viewname does not need to be a perfect match; rather, it will
              select the first view whose name matches all the characters specified by  viewname.
              For  example,  -snapview native will match the "Native (15:14)" view even though it
              is not a perfect match.  viewname can also be 'auto', which selects the first  view
              with all screens present. The default value is 'internal'.

       -[no]snapbilinear
              Specify  whether snapshot/movie should have bilinear filtering applied.  Default is
              ON (-snapbilinear).

       -statename string
              Describes how MAME should store save state files, relative to  the  state_directory
              path.  string  provides  a  template  that is used to generate a relative path. Two
              simple substitutions are provided: the / character represents the path separator on
              any  target  platform  (even Windows); the literal %g represents the driver name of
              the current game. The default is '%g', which creates a  separate  folder  for  each
              game.  Example:  if you use mame robby -statename foo/%g save states will be stored
              inside sta/foo/robby/.

       -[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 games. 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
              gamename\burnin-<screen.name>.png. The default is OFF (-noburnin).

   Performance options
       -[no]autoframeskip, -[no]afs
              Automatically  determines  the  frameskip  level  while  you're  playing  the game,
              adjusting it constantly in a frantic attempt to  keep  the  game  running  at  full
              speed.  Turning  this on overrides the value you have set for -frameskip below. The
              default is OFF (-noautoframeskip).

       -frameskip, -fs value
              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 MAME will display 10 out of every 12 frames. By skipping those frames,  you
              may  be  able  to  get full speed in a game that requires more horsepower than your
              computer has. The default value is 0, which skips no frames.

       -seconds_to_run, -str value
              This option can be used for benchmarking and automated testing. It  tells  MAME  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 MAME performance. In addition, upon exit, the -str option will write a
              screenshot called final.png to the game's snapshot directory.

       -[no]throttle
              Configures the default thottling setting. When throttling is on, MAME  attempts  to
              keep  the  game  running at the game's intended speed. When throttling is off, MAME
              runs the game as fast as it can. Note that the fastest speed is more often than not
              limited  by  your  graphics  card,  especially  for  older games. The default is ON
              (-throttle).

       -[no]sleep
              Allows MAME to give time back to the system  when  running  with  -throttle.   This
              allows  other  programs  to have some CPU time, assuming that the game 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).

       -speed value
              Controls  the  speed of gameplay, relative to realtime; smaller numbers are slower.
              Default is 1.00.

       -[no]refreshspeed, -[no]rs
              Automatically adjusts the -speed parameter to keep the effective refresh rate below
              that of the lowest screen refresh rate.  Default is OFF (-norefreshspeed).

       -[no]multithreading, -[no]mt
              Enable  multithreading;  this  enables rendering and blitting on a separate thread.
              The default is OFF (-nomultithreading).

       -numprocessors, -np value
              Set number of processors; this overrides the number the system reports.

       -bench value
              Benchmark for the given number of emulated seconds; implies -video none -sound none
              -nothrottle.

       -[no]sdlvideofps
              Show SDL video performance. Default is OFF (-nosdlvideofps).

   Rotation options
       -[no]rotate
              Rotate  the game to match its normal state (horizontal/vertical). This ensures that
              both vertically and horizontally oriented games show up correctly without the  need
              to rotate your monitor. If you want to keep the game displaying 'raw' on the screen
              the way it would have in the arcade, turn  this  option  OFF.  The  default  is  ON
              (-rotate).

       -[no]ror | -[no]rol
              Rotate  the  game  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).  Default for both is OFF (-noror -norol).

       -[no]autoror | -[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  game  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.  Default for both is OFF (-noautoror -noautorol).

       -[no]flipx -[no]flipy
              Flip  (mirror) the game screen either horizontally (-flipx) or vertically (-flipy).
              The flips are applied after the -rotate and -ror/-rol options are applied.  Default
              for both is OFF (-noflipx -noflipy).

   Artwork options
       -[no]artwork_crop, -[no]artcrop
              Enable  cropping  of  artwork to the game screen area only. This option can also be
              controlled via the Video Options menu in the user interface.  The  default  is  OFF
              (-noartwork_crop).

       -[no]use_backdrops, -[no]backdrop
              Enables/disables the display of backdrops. The default is ON (-use_backdrops).

       -[no]use_overlays, -[no]overlay
              Enables/disables the display of overlays. The default is ON (-use_overlays).

       -[no]use_bezels, -[no]bezel
              Enables/disables the display of bezels. The default is ON (-use_bezels).

       -[no]use_cpanels, -[no]cpanel
              Enables/disables the display of cpanels. The default is ON (-use_bezels).

       -[no]use_marquees, -[no]marquee
              Enables/disables the display of marquees. The default is ON (-use_bezels).

   Screen options
       -brightness value
              Controls  the default brightness, or black level, of the game screens.  This option
              does not affect the artwork or other parts of the display.  Using the MAME UI,  you
              can  individually set the brightness for each game screen; this option controls the
              initial value for all visible game 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.

       -contrast value
              Controls the contrast, or white level, of the game screens. This  option  does  not
              affect  the  artwork  or  other  parts  of  the display. Using the MAME UI, you can
              individually set the contrast for  each  game  screen;  this  option  controls  the
              initial  value  for  all visible game 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.

       -gamma value
              Controls the gamma, which produces a potentially nonlinear black to white ramp, for
              the game screens. This option does not affect the artwork or  other  parts  of  the
              display.  Using  the  MAME  UI,  you  can  individually set the gamma for each game
              screen; this option controls the initial value for all visible  game  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.

       -pause_brightness value
              This controls the brightness level when MAME is paused. The default value is 0.65.

       -effect [none|filename[.png]]
              Name of a PNG file to use for visual effects, or 'none'. Default is 'none'.

   Vector rendering options
       -[no]antialias, -[no]aa
              Enables  antialiased  line  rendering  for  vector  games.  The   default   is   ON
              (-antialias).

       -beam value
              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.

       -flicker value
              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.

   Video options
       -video [soft|opengl|none]
              Specifies which video subsystem to use for drawing:
              soft  uses software rendering, which is slower but more compatible.
              opengl   uses  OpenGL  and  your  graphics  accelerator to speed up many aspects of
              drawing MAME including compositing  artwork,  overlays,  and  bezels,  as  well  as
              stretching the image to fit your screen.  output on some cards.
              none  does no drawing and is intended for CPU benchmarking.
              Default is SOFT.

       -[no]window, -[no]w
              Run  MAME  in  either full screen or a window. This is a fully-featured window mode
              where the window resizes as necessary to track what the game  does.   And  you  can
              resize  it   yourself  with your OS's standard window controls.  The default is OFF
              (-nowindow).

       -[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 MAME. 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).

       -[no]keepaspect, -[no]ka
              Forces  the  correct  aspect  ratio.  This means when you're resizing the window in
              windowed mode the actual game image will resize in discrete steps to  maintain  the
              proper  shape  of the game 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).

       -[no]unevenstretch, -[no]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).

       -[no]centerh
              Center horizontally within the view area. Default is ON (-centerh).

       -[no]centerv
              Center vertically within the view area. Default is ON (-centerv).

       -[no]waitvsync, -[no]vs
              Enable  waiting  for  the  start of VBLANK before flipping screens; reduces tearing
              effects. Default is OFF (-nowaitvsync).

       -[no]syncrefresh, -[no]srf
              Enable using the start of VBLANK for throttling instead of the game time.   Default
              is OFF (-nosyncrefresh).

   Software video rendering subsystem options
       NOTE:  All  the  options  in  this  group  are available only with softare video rendering
       subsystem, i.e -video soft.

       -prescale [value]
              Scale screen rendering by this amount in software. Default is 1.

       -scalemode, -sm [none|async|yv12|yuy2|yv12x2|yuy2x2]
              Hardware scaling mode.
              none    use software rendering.
              async   async overlay.
              yv12    yv12 overlay.
              yuy2    yuy2 overlay.
              yv12x2  yv12 overlay using x2 prescaling.
              yuy2x2  yuy2 overlay using x2 prescaling.
              Default is NONE.

   OpenGL video rendering subsystem options
       NOTE: All the options in this  group  are  available  only  with  OpenGL  video  rendering
       subsystem, i.e -video opengl or -video opengl16.

       -[no]filter, -[no]glfilter, -[no]flt
              Enable bilinear filtering on screen output. Default is ON (-filter).

       -prescale [value]
              Scale screen rendering by this amount in software. Default is 1.

       -[no]gl_forcepow2texture
              Force power of two textures. Default is OFF (-nogl_forcepow2texture).

       -[no]gl_notexturerect
              Don't  use OpenGL GL_ARB_texture_rectangle. Turn off if corruption occurs in OpenGL
              mode, at cost of some performance loss. Default is ON (-gl_notexturerect).

       -[no]gl_vbo
              Enable OpenGL  VBO,  if  available,  for  a  performance  increase.   Turn  off  if
              corruption occurs. Default is ON (-gl_vbo).

       -[no]gl_pbo
              Enable  OpenGL  PBO,  if  available,  for  a  performance  increase.   Turn  off if
              corruption occurs. Default is ON (-gl_pbo).

       -[no]gl_glsl
              Enable OpenGL GLSL, if available, for  a  performance  increase.   Default  is  OFF
              (-nogl_glsl).

       -gl_glsl_filter value
              Enable  OpenGL GLSL filtering instead of FF filtering 0=plain, 1=bilinear.  Default
              is 1: bilinear.

       -glsl_shader_mame[0-9]
              Preferred custom OpenGL GLSL shader set mame bitmap (from 0 to 9).

       -glsl_shader_screen[0-9]
              Preferred custom OpenGL GLSL shader screen bitmap (from 0 to 9).

       -gl_glsl_vid_attr
              Enable OpenGL GLSL handling of brightness and contrast. Better RGB game performance
              for free. Default is ON.

       -screen
              Explicit name for all screens; 'auto' here will try to make a best guess.

       -aspect, -screen_aspect
              Aspect ratio for all screens; 'auto' here will try to make a best guess.

       -resolution, -r
              Preferred  resolution  for  all  screens;  format  is widthxheight[@refreshrate] or
              'auto'.

       -view  Preferred view for all screens

       -screen[0-3]
              Explicit name of the first|second|third|fourth screen; 'auto' here will try to make
              a best guess.

       -aspect[0-3]
              Aspect  ratio of the first|second|third|fourth screen; 'auto' here will try to make
              a best guess.

       -resolution[0-3], -r[0-3]
              Preferred  resolution  for  the   first|second|third|fourth   screen;   format   is
              widthxheight[@refreshrate] or 'auto'.

       -view[0-3]
              Preferred view for the first|second|third|fourth screen.

   Full screen options
       -[no]switchres
              Affects  full  screen  mode  only.  Chooses  if  MAME  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). Default is OFF (-noswitchres).

       -[no]useallheads
              Split full screen image across monitors. Default is OFF (-nouseallheads).

   Sound options
       -[no]sound
              Enable or disable sound altogether. The default is ON (-sound).

       -samplerate, -srf value
              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.

       -[no]samples
              Use samples if available. The default is ON (-samples).

       -volume, -vol value
              Sets the startup volume. It can later be changed with the user interface (see  Keys
              section).  The  volume is an attenuation in dB: e.g., "-volume -12" will start with
              -12dB attenuation. The default is 0.

       -audio_latency value
              This controls the amount of latency built into the audio  streaming.   The  latency
              parameter  controls  the  lower  threshold. The default is 1 (meaning lower=1/5 and
              upper=2/5). Set it to 2 (-audio_latency 2) to keep the sound buffer between 2/5 and
              3/5 full. If you crank it up to 4, you can definitely notice the lag.

   Input options
       -[no]coin_lockout, -[no]coinlock
              Enables simulation of the "coin lockout" feature that is implmeneted on a number of
              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).

       -ctrlr controller
              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).

       -[no]mouse
              Controls whether or not MAME 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 playing a game. If you want to get control of your computer
              back,  you  will  need  to  either  pause  the  game  or  quit.  The default is OFF
              (-nomouse).

       -[no]joystick, -[no]joy
              Controls whether or not MAME looks for joystick/gamepad controllers.   The  default
              is ON (-joystick).

       -[no]lightgun, -[no]gun
              Controls  whether  or  not  MAME 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).

       -[no]multikeyboard, -[no]multikey
              Determines  whether  MAME  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 MAME to report keypresses on different keyboards independently. The  default
              is OFF (-nomultikeyboard).

       -[no]multimouse
              Determines  whether  MAME  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
              MAME to report mouse movement and button presses on different  mice  independently.
              The default is OFF (-nomultimouse).

       -[no]steadykey, -[no]steady
              Some  games  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).

       -[no]ui_active
              Enable MAME user interface on top of emulated keyboard (if  present).   Default  is
              OFF (-noui_active).

       -[no]offscreen_reload, -[no]reload
              Controls  whether  or  not  MAME  treats a second button input from a lightgun as a
              reload signal. In this case, MAME 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 games 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).

       -joystick_map, -joymap map
              Controls   how   joystick   values   map   to   digital   joystick  controls.   See
              /usr/share/doc/mame/config.txt for full details on map format.

       -joystick_deadzone, -joy_deadzone, -jdz value
              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.

       -joystick_saturation, -joy_saturation, -jsat value
              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.

       -[no]natural, -[no]nat
              Allows  user  to specify whether or not to use a natural keyboard.  This allows you
              to start your game or system in a 'native' mode, depending on your region, allowing
              compatibility for non-"QWERTY" style keyboards.  The default is OFF (-nonatural).

       -[no]joystick_contradictory, -[no]joy_contradictory
              Enable contradictory direction digital joystick input at the same time.  Default is
              OFF (-nojoystick_contradictory).

       -coin_impulse time
              Set coin impulse time. A negative value for time disables the impulse; set time  to
              0 to obey driver or give a positive value to set impulse time.

       -uimodekey, -umk
              Specifies the key used to toggle between full and partial UI mode.

       -[no]keymap
              Enable  keymap  for  non-QWERTY  keyboards.  Used in conjunction with -keymap_file.
              Default is OFF (-nokeymap).

       -keymap_file keymap_file
              Specifies the full path to the keymap file to be  used.  A  few  keymap  files  are
              available in /usr/share/games/mess/keymaps.

       -joy_idx[0-8] joystick
              With  these  options you can assign a joystick to a specific index in MAME. Even if
              the kernel will list the joysticks in a different order on the next boot, MAME will
              still see the joystick as e.g. "Joystick 2". Use mame -v to see which joysticks are
              recognized.  Default is 'auto'.

       -[no]sixaxis
              Use special handling for PS3 Sixaxis controllers.  Default is OFF (-nosixaxis).

       -lightgun_index[1-8]
              Map lightgun to specific index in MAME.

       -videodriver, -vd x11|directfb|auto
              SDL video driver to use; auto selects SDL default.

       -audiodriver, -ad alsa|arts|auto
              SDL audio driver to use; auto selects SDL default.

       -gl_lib alsa|arts|auto
              Alternative libGL.so to use; auto selects SDL default.

   Input automatic enable options
       -paddle_device, -paddle [none|keyboard|mouse|lightgun|joystick]

       -adstick_device, -adstick [none|keyboard|mouse|lightgun|joystick]

       -pedal_device, -pedal [none|keyboard|mouse|lightgun|joystick]

       -dial_device, -dial [none|keyboard|mouse|lightgun|joystick]

       -trackball_device, -trackball [none|keyboard|mouse|lightgun|joystick]

       -lightgun_device [none|keyboard|mouse|lightgun|joystick]

       -positional_device [none|keyboard|mouse|lightgun|joystick]

       -mouse_device [none|keyboard|mouse|lightgun|joystick]
              Each of these options controls autoenabling the mouse, or joystick depending on the
              presence  of  a  particular  class  of  analog  control  for a particular game. For
              example, if you specify the option -paddle mouse, then any game 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.

   Debugging options
       -[no]log
              Creates  a  file  called  error.log which contains all of the internal log messages
              generated by the MAME core and game drivers. The default is OFF (-nolog).

       -[no]verbose, -[no]v
              Displays internal diagnostic information.  This  information  is  very  useful  for
              debugging  problems with your configuration. IMPORTANT: when reporting bugs, please
              run with mame -verbose and include the resulting information. The  default  is  OFF
              (-noverbose).

       -[no]update_in_pause
              Enables  updating  the  screen  bitmap while the game is paused. This is useful for
              debuggin in some scenarios (and gets  in  the  way  in  others).   Default  is  OFF
              (-noupdate_in_pause).

       -[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).

       -debugscript filename
              Specifies  a  file that contains a list of debugger commands to execute immediately
              upon startup. The default is NULL (no commands).

       -[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).

   Misc options
       -[no]drc
              Enable DRC cpu core if available. Default is ON (-drc).

       -[no]drc_use_c
              Force DRC use C backend. Default is OFF (-nodrc_use_c).

       -[no]drc_log_uml
              Write DRC UML disassembly log. Default is OFF (-nodrc_log_uml).

       -[no]drc_log_native
              Write DRC native disassembly log. Default is OFF (-no_drc_log_native).

       -bios biosname
              Specifies the specific BIOS to use with the current game,  for  game  systems  that
              make  use  of  a BIOS. The -listxml output will list all of the possible BIOS names
              for a game. The default is 'default'.

       -[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).

       -[no]skip_gameinfo
              Forces  MAME  to  skip  displaying  the  game  info  screen.  The  default  is  OFF
              (-noskip_gameinfo).

       -uifont fontname
              Specifies the name of a BDF font file to use for the UI font. If this  font  cannot
              be found or cannot be loaded, the system will fall back to its built-in UI font. On
              some platforms fontname can be a system font name instead of a BDF font  file.  The
              default is 'default' (use the OSD-determined default font).

       -ramsize, -ram value
              Size of RAM (if supported by driver).

       -[no]confirm_quit
              Display confirm quit screen on exit. Default is ON (-confirm_quit).

       -[no]ui_mouse
              Display UI mouse cursor. Default is OFF (-noui_mouse).

       -autoboot_command, -ab command
              Command  string  to execute after machine boot (in quotes "").  To issue a quote to
              the emulation, use """ in the string.  Using \n will issue a  create  a  new  line,
              issuing  what  was  typed  prior  as  a  command.  Example: -autoboot_command "load
              """$""",8,1\n".

       -autoboot_delay [value]
              Timer delay (in seconds) to trigger command execution on autoboot.  Default is 2.

       -autoboot_script, -script [filename.lua]
              File containing scripting to execute after machine boot.

       -[no]http
              Enable local http server. Default is OFF (-nohttp).

       -http_port port
              Internal webserver listener port.

       -http_path path
              Path to web files. Default is /usr/share/games/mess/web.

       -[no]console
              Enable emulator LUA console. Default is OFF (-noconsole).

       -watchdog value
              Specifies a number of seconds after which MAME  should  automatically  exit  if  it
              detects that the emulation has locked up.

SEE ALSO

       chdman(1), jedutil(1), ldresample(1), ldverify(1), romcmp(1), testkeys(1)

LEGAL NOTICE

       Please visit the MAME website for some important legal information:

       http://mamedev.org/legal.html