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+.TH SMS_SDL "1" "February 2009" "SMS Plus/SDL v0.9.4aR7" "User Commands"
+.SH NAME
+sms_sdl \- Sega Master System and Game Gear emulator.
+.SH SYNOPSIS
+.B sms_sdl
+\fI<filename.<SMS|GG>> \fR[\fI--options\fR]
+.SH DESCRIPTION
+SMS Plus/SDL v0.9.4aR7
+.br
+(C) Charles Mac Donald in 1998, 1999, 2000
+.br
+SDL Version by Gregory Montoir (cyx@frenchkiss.net)
+.SH OPTIONS
+.PP
+\fINote:\fR Options must come \fIafter\fR the filename.
+.TP
+\fB\-\-fm\fR
+Enable YM2413 sound.
+.TP
+\fB\-\-japan\fR
+Set the machine type as DOMESTIC instead of OVERSEAS.
+.TP
+\fB\-\-usesram\fR
+Load/save SRAM contents before starting/exiting.
+.TP
+\fB\-\-fskip\fR <n>
+Specify the number of frames to skip.
+.TP
+\fB\-\-fullspeed\fR
+Do not limit to 60 frames per second.
+.TP
+\fB\-\-fullscreen\fR
+Start in fullscreen mode.
+.TP
+\fB\-\-joystick\fR
+Use joystick.
+.TP
+\fB\-\-nosound\fR
+Disable sound.
+.TP
+\fB\-\-filter\fR <mode>
+Render using a filter. Available modes:
+.RS
+.IP "2xsai"
+.PD 0
+.IP "super2xsai"
+.IP "supereagle"
+.IP "advmame2x"
+.IP "tv2x"
+.IP "2x"
+.IP "bilinear"
+.IP "dotmatrix"
+.RE
+.PD 1
+.SH KEYBOARD
+.TP
+\fBF1\fR
+Screenshot in BMP format
+.TP
+\fBF2\fR
+Save state
+.TP
+\fBF3\fR
+Load state
+.TP
+\fBF4/F5\fR
+Dec/inc frame skip value
+.TP
+\fBF6/F7\fR
+Dec/inc state slot
+.TP
+\fB1..8\fR
+Switch rendering filter
+.TP
+\fBC\fR
+Button 1
+.TP
+\fBV\fR
+Button 2
+.TP
+\fBENTER\fR
+Start (GG) / pause (SMS)
+.TP
+\fBARROWS\fR
+Directional pad
+.TP
+\fBTAB\fR
+Console hard reset
+.PP
+The key bindings may not be remapped.
+.SH FILES
+.PP
+ROM image files may be in raw dump format, or may have a header (details
+are system-specific). Also, ROM images may be zipped (not gzipped), in
+which case the first file in the zip file's directory must be the
+ROM image (any other files are ignored).
+.PP
+\fBsms_sdl\fR looks at the filename to determine the type of ROM image
+in use. Any file whose name ends in \fI.gg\fR (case-insensitive match)
+is considered to be a Game Gear ROM. Any other file is treated as a
+Sega Master System ROM. In the case of a zipped image, this refers to the
+file inside the zip file; the zip file itself doesn't have any special
+naming requirements.
+.PP
+Screenshot filenames (F1 key) are generated by replacing the filename
+extension with \fI-NNN.bmp\fR, where NNN is a 3-digit number (000 for
+the first screenshot, 001 for the second, etc). The numbering starts
+at 000 every time the emulator is started, and existing files will be
+overwritten without confirmation.
+.PP
+State save filenames (F2 key) are generated by replacing the filename
+extension with \fI.stN\fR, where N is the number of the save slot (one
+or more digits). Again, existing files are overwritten without confirmation.
+.PP
+For both types of file, the filename is considered to be the entire
+path to the ROM image file. This means that the emulator expects to
+be able to write savestate and screenshot files in the directory where
+the ROM files reside. If the directory is not writable, no files will
+be created.
+.SH BUGS
+.PP
+\fBsms_sdl\fR will segfault if it's given a filename that
+contains no . (dot/period) characters (in other words, a filename
+without an extension). So don't do that. (This applies to the file
+inside the zip file, for zipped images)
+.PP
+Screenshot and state-save files should really be written in the
+current directory, or else a hypothetical ~/.sms_sdl directory.
+.PP
+There should be a config file, so the user doesn't have to pass his
+favorite set of options on the command line every time (of course,
+a shell alias, wrapper script, or GUI file manager
+can work around this easily enough).
+.SH AUTHORS
+.PP
+(C) Charles Mac Donald in 1998, 1999, 2000
+.br
+SDL Version by Gregory Montoir (cyx@frenchkiss.net)