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+.TH O2EM "6" "Nov 2021" "1.18" "SlackBuilds.org"
+.SH NAME
+o2em \- Emulator for Odyssey II and VideoPac+ systems
+.SH SYNOPSIS
+.B o2em
+<\fIfile\fR>
+[\fI-options\fR]
+.SH DESCRIPTION
+O2EM is an open source Odyssey2 / Videopac console emulator.
+.SH OPTIONS
+.TP
+\fBfile\fR
+Cartridge ROM image.
+.br
+\fINOTE:\fR Unlike most programs, o2em requires the file argument
+first, before any options.
+.TP
+\fB\-help\fR
+Help display
+.TP
+\fB\-wsize\fR=n
+Window size (1\-4)
+.TP
+\fB\-fullscreen\fR
+Full screen mode
+.TP
+\fB\-help\fR
+Show help
+.TP
+\fB\-scanlines\fR
+Enable scanlines
+.TP
+\fB\-nosound\fR
+Turn off sound emulation
+.TP
+\fB\-novoice\fR
+Turn off voice emulation
+.TP
+\fB\-svolume\fR=n
+Set sound volume (0\-100)
+.TP
+\fB\-vvolume\fR=n
+Set voice volume (0\-100)
+.TP
+\fB\-filter\fR
+Enable low-pass audio filter
+.TP
+\fB\-debug\fR
+Start the emulator in 
+debug mode
+.TP
+\fB\-speed\fR=n
+Relative speed
+(100 = original)
+.TP
+\fB\-nolimit\fR
+Turn off speed limiter
+.TP
+\fB\-bios\fR=file
+Set the O2 bios file name/dir
+.TP
+\fB\-biosdir\fR=path
+Set the O2 bios path 
+(default= bios/)
+.TP
+\fB\-romdir\fR=path
+Set the O2 roms Path 
+(default= roms/)
+.TP
+\fB\-scshot\fR=file
+Set the screenshot file 
+name/template
+.TP
+\fB\-euro\fR
+Use European timing /
+50Hz mode
+.TP
+\fB\-exrom\fR
+Use special 3K program/
+1K data ROM mode
+Use 3K rom mapping mode
+.TP
+\fB\-s<n>\fR=mode/keys
+Define stick n mode/keys (n=1\-2, see \fBo2em.txt\fR)
+.TP
+\fB\-c52\fR
+Start the emulator with 
+french Odyssey 2 BIOS
+.TP
+\fB\-g7400\fR
+Start the emulator 
+with VP+ BIOS
+.TP
+\fB\-jopac\fR
+Start the emulator with 
+french VP+ bios
+.TP
+\fB\-scoretype\fR=m
+Set Scoretype to m (see \fBo2em.txt\fR)
+.TP
+\fB\-scoreadr\fR=n
+Set Scoreaddress to n 
+(decimal value)
+.TP
+\fB\-scorefile\fR=file
+Set Output-Scorefile to 
+file (highscore.txt)
+.TP
+\fB\-score\fR=n
+Set Highscore to n
+.TP
+\fB\-savefile\fR=file
+Load/Save State 
+from/to file
+.SH KEY BINDINGS
+These are the default key bindings, and can be changed
+on the command line or in the config file.
+.TP
+\fBArrow keys + L\fR
+Default joystick 1 emulation
+.TP
+\fBW,D,S,A + Space\fR
+Default joystick 2 emulation
+.TP
+\fBESC or F12\fR
+Leave the emulator
+.TP
+\fBF1\fR
+Pause/Information
+.TP
+\fBF2\fR
+Save State\-File
+.TP
+\fBF3\fR
+Load State\-File
+.TP
+\fBF4\fR
+Enter debugger
+.TP
+\fBF5\fR
+Reset emulator (same as pressing the reset on the O2 keyboard)
+.TP
+\fBF6\fR
+Inject Highscore
+.TP
+\fBF8\fR
+Make a screen shot
+.TP
+\fBCaps Lock\fR
+Enables/Disables the O2 keyboard input of the keys used by
+joystick emulation
+.SH FILES
+.TP
+\fB/usr/games/o2em\fR
+Shell script wrapper. Sets up ~/.o2em if needed, runs the actual
+binary. This is required because o2em was ported from DOS, and
+expects to be run in its own directory; with the wrapper, it
+behaves like a proper UNIX program (run anywhere, writes only
+to ~/.o2em).
+.TP
+\fB/usr/libexec/o2em.bin\fR
+The actual o2em binary. Normally, you don't want to run this
+directly (let the wrapper run it for you).
+.TP
+\fB/usr/share/games/o2em/bios\fR
+BIOS ROM images. At minimum, \fBo2rom.bin\fR must exist. To use the
+\fB\-c52\fR,
+\fB\-jopac\fR, or
+\fB\-g7400\fR
+options, the appropriate BIOS image must be located here (see below).
+The emulator checks the CRC of the ROM images,
+and will refuse to start with an image it doesn't recognize. The correct
+files are:
+.PP
+c52.bin (md5sum f1071cdb0b6b10dde94d3bc8a6146387)
+.br
+g7400.bin (md5sum c500ff71236068e0dc0d0603d265ae76)
+.br
+jopac.bin (md5sum 279008e4a0db2dc5f1c048853b033828)
+.br
+o2rom.bin (md5sum 562d5ebf9e030a40d6fabfc2f33139fd)
+.PP
+These are the same files used by MESS, except o2rom.bin is called
+o2bios.rom by MESS.
+.TP
+\fB/usr/share/games/o2em/voice\fR
+Voice samples, used to emulate the Odyssey2's speech synthesis chip.
+.TP
+\fB~/.o2em/\fR
+Working directory for o2em. Will be created by shell script wrapper
+the first time it's run. All save\-state and screenshot files will be
+written here. The BIOS image, cartridge images, and voice samples will
+be symlinked into this directory by the wrapper script.
+.TP
+\fB~/.o2em/o2em_def.cfg\fR
+Config file (optional). See o2em.txt for details.
+.TP
+\fB/usr/doc/o2em\-\fR\fI$VERSION\fR\fB/o2em.txt\fR
+Full documentation for o2em.
+.SH AUTHORS
+o2em was originally created by Daniel Boris, and has been developed by
+Andre de la Rocha since version 0.80 and Arlindo M. de Oliveira since version 1.16.
+.PP
+This manual page was written by B. Watson for the SlackBuilds.org project (but
+may be used by anyone for any reason).
+.PP
+Wrapper script also by B. Watson.