DragonFly On-Line Manual Pages

DGEN(1)                DragonFly General Commands Manual               DGEN(1)

NAME
     dgen - Sega Genesis/Mega Drive emulator

SYNOPSIS
     dgen [-Pfhmv] [-R (J|U|E)] [-H HZ] [-D DEMONAME] [-d DEMONAME] [-n USEC]
          [-p CODE,CODE...] [-r RCFILE] [-X XFACT] [-Y YFACT] [-S FACT]
          [-g (0|1)] [-G XxY] [-s SLOT] [romname [...]]

DESCRIPTION
     The ROM image in the file romname is executed, as emulated on a Sega
     Genesis or Mega Drive running in 60Hz NTSC mode (unless the -P option is
     specified, in which case 50Hz PAL mode is used).  romname should be in
     raw binary or SMD format, and may be compressed with gzip(1), zip(1), or
     bzip2(1).

     When romname isn't specified, DGen starts without a ROM. It can be loaded
     later from the prompt. When more than a single romname is specified, they
     are executed sequentially.

     The options are as follows:

     -H HZ       Use a custom frame rate, can be used to accelerate or slow
                 down emulation.

     -P          Emulate 50Hz PAL mode (as used in European models of the Mega
                 Drive).

     -R (J|U|E)  Emulator region. Without this option, DGen uses the first
                 region mentioned in the ROM header. It should be combined
                 with -P for PAL mode. See below.

                 (none)      Autodetect (NTSC, 60Hz)

                 -P          Autodetect (PAL, 50Hz)

                 -R J        Japan (NTSC, 60Hz)

                 -R J -P     Japan (PAL, 50Hz)

                 -R E        Europe (NTSC, 60Hz, music will certainly play too
                             fast)

                 -R E -P     Europe (PAL, 50Hz)

                 -R U        America (NTSC, 60Hz)

                 -R U -P     Same as -R E -P

     -f          Run fullscreen, if possible.

     -h          Show a brief synopsis of all options.

     -m          MinGW only. This option prevents DGen from detaching from its
                 control console.

     -v          Show the version number, and exit.

     -D DEMONAME
                 Play back a demo recorded with the -d option.

     -d DEMONAME
                 Record a demo of the program running, which can be later
                 replayed with the -D switch.

     -n USEC     Sleep for a number of microseconds after every frame, to give
                 time to other processes.

     -p CODE,CODE...
                 Modify the ROM image in memory, using Game Genie or Hex style
                 codes. Game Genie codes are of the form ABCD-EFGH and Hex
                 codes are in the form 123456:ABCD.  To specify more than one
                 code, separate them with commas (do not use spaces).

     -r RCFILE   Parse another rc file after $HOME/.dgen/dgenrc. Values in the
                 specified file override those in the preceding files.

     -X XFACT    Scale the window XFACT times in the X direction. XFACT must
                 be a positive integer.

     -Y YFACT    Scale the window YFACT times in the Y direction. YFACT must
                 be a positive integer.

     -S FACT     Scale the window FACT times in both directions. FACT must be
                 a positive integer.

     -g (0|1)    Enable/disable OpenGL (if compiled-in).

     -G XxY      Desired window size (e.g. 640x480, 800x600, etc.)

     -s SLOT     Load the saved state from the given slot at startup (0-9)

INTERACTIVE PROMPT
     A minimalist interactive prompt inspired from vi(1) can be used to
     perform various operations described below. It is triggered by pressing
     colon (:), the default key. Command-line editing, history and completion
     are supported.

   Commands
     {quit, exit, q}
           Quit, or load the next romname from command-line, if any.

     {load, open, plug, o} filename
           Load a given ROM filename.

     {unload, close, unplug}
           Unload the current ROM.

     config_load filename
           Load configuration from file filename.

     config_save filename
           Save current configuration to file filename.

     reset
           Genesis reset.

     {ctv_push, ctv_pop, ctv_none}
           Manage the stack of Crap TV filters (if compiled-in).

     calibrate number
           Interactive calibration of the specified gamepad (1 or 2). If
           number isn't specified, default to 1.

     unbind binding [...]
           Remove specified bindings (variables prefixed with "bind_").  See
           dgenrc(5) for more information about them.

     vgmdump start filename

     vgmdump stop
           Manages VGM dumping/logging. If the second argument is start VGM
           dumping will be started at the path specified by the third
           argument.  If the second argument is stop VGM dumping will be
           stopped and the dump finalized.

   Variables
     All configuration variables from dgenrc(5) can be displayed and modified
     interactively, with immediate effect.

     {int_name, bool_name, key_name, joy_name, ...} {value}
           Affect value to variable name.

     {int_name, bool_name, key_name, joy_name, ...}
           Display current value for variable name.

FILES
     $HOME/.dgen/dgenrc        Contains user settings for the emulator.
     $HOME/.dgen/dgenrc.auto   Generated file containing saved user settings.
     $HOME/.dgen/saves/*       Save states generated by the emulator.
     $HOME/.dgen/ram/*         Battery-backup RAM images, generated by the
                               emulator for ROMs with save RAM.
     $HOME/.dgen/screenshots/*
                               Screenshots are generated there.
     $HOME/.dgen/roms/*        ROMs default search path.
     $HOME/.dgen/demos/*       Demos default search path.

SEE ALSO
     gzip(1), bzip2(1), zip(1), dgenrc(5)

AUTHORS
     This manual page was written by Joe Groff <joe@pknet.com>.
     Updated by zamaz <zamaz@users.sourceforge.net>.

BUGS
     There are known emulation bugs, see BUGS in DGen source package.

     Report bugs to <http://sourceforge.net/projects/dgen/>.

DragonFly 6.5-DEVELOPMENT        July 26, 2014       DragonFly 6.5-DEVELOPMENT