5 .Nd Sega Genesis/MegaDrive emulator
12 .Op Fl p Ar CODE,CODE...
21 The rom image in the file
23 is executed, as emulated on a Sega Genesis or MegaDrive running in 60Hz NTSC
26 option is specified, in which case 50Hz PAL mode is used).
28 should be in raw binary or SMD format, and may be compressed with
33 The options are as follows:
36 Emulate 50Hz PAL mode (as used in European models of the MegaDrive).
38 If running with root priviledges, set priority to -20, so no other processes
39 interrupt (including the X server, which can be a Bad Thing).
41 Run fullscreen, if possible.
43 Show a brief synopsis of all options.
45 Use joystick, if running on Linux with joystick drivers >= 1.0.
47 Show the version number, and exit.
49 Play back a demo recorded with the
53 Record a demo of the program running, which can be later replayed with the
57 Sleep for a number of microseconds after every frame, to give time to other
59 .It Fl p Ar CODE,CODE...
60 Modify the ROM image in memory, using Game Genie or Hex style codes. Game
61 Genie codes are of the form
63 and Hex codes are in the form
65 To specify more than one code, separate them with commas (do
69 Parse another rc file after $HOME/.dgen/dgenrc. Values in the specified file
70 override those in the preceding files.
72 Scale the window XFACT times in the X direction. XFACT must be a positive
75 Scale the window YFACT times in the Y direction. YFACT must be a positive
78 Scale the window FACT times in both directions. FACT must be a positive integer.
80 Use OpenGL to render the screen, if available. The parameter is the width
81 and height of the desired screen (e.g. 640x480, 800x600, etc.)
83 Load the saved state from the given slot at startup (0-9)
86 .Bl -tag -width $HOME/.dgen/dgen/saves/* -compact
87 .It Pa $HOME/.dgen/dgenrc
88 Contains user settings for the emulator.
89 .It Pa $HOME/.dgen/saves/*
90 Save states generated by the emulator.
91 .It Pa $HOME/.dgen/ram/*
92 Battery-backup RAM images, generated by the emulator for ROMs with save RAM.
101 manual page was written by
102 .An Joe Groff Aq joe@pknet.com .
104 PAL mode does not work very well yet. Numerous buffer overruns
105 (think twice before making dgen setuid-root).
107 Send any bugs you find (and fixes too, please :) to
108 .An Joe Groff Aq joe@pknet.com .