apple2



XScreenSaver(1)                                                XScreenSaver(1)




NAME

       apple2 - Apple ][ display emulator


SYNOPSIS

       apple2  [-display host:display.screen] [-foreground color] [-background
       color] [-window] [-root] [-mono] [-install] [-visual visual]  [-program
       command  to  run]  [-basic]  [-slideshow]  [-text] [-meta] [-esc] [-bs]
       [-del] [-fast]


DESCRIPTION

       The apple2 program simulates an original Apple ][ Plus computer in  all
       its 1979 glory. It also reproduces the appearance of display on a color
       television set of the period.

       There are 3 modes: basic, slideshow, and text. Normally  it  chooses  a
       mode  randomly,  but  you  can override with the -basic, -slideshow, or
       -text options.

       In basic mode a simulated user types in a Basic program and runs it.

       In slideshow mode it chooses a number of images from the  image  source
       you  configured  into XScreenSaver and displays them within the limita-
       tions of the Apple ][ display hardware. With only 6  available  colors,
       you can only make out the general shape of the pictures.

       In  text  mode it displays the output of a command or the contents of a
       file or URL (via the default xscreensaver-text(1) program, which can be
       overridden with -program).

       In  text  mode,  it is also a fully functional (if anachronistic) vt100
       terminal emulator.


OPTIONS

       apple2 accepts the following options:

       -window Draw on a newly-created window.  This is the default.

       -root   Draw on the root window.

       -mono   If on a color display, pretend we’re on a monochrome display.

       -install
               Install a private colormap for the window.

       -visual visual
               Specify which visual to use.  Legal values are the  name  of  a
               visual  class,  or the id number (decimal or hex) of a specific
               visual.

       -basic  Choose basic mode

       -slideshow
               Choose slideshow mode

       -text   Choose text mode

       -program sh-command
               In text mode, the command to run to generate the text  to  dis-
               play.  This option may be any string acceptable to /bin/sh. The
               program will be run at the end of a pipe,  and  any  characters
               that  it  prints to stdout will be printed on the Apple ][ dis-
               play. If the program exits, it will be launched again  after  3
               seconds.  Default: xscreensaver-text(1).

               In  text  mode,  apple2  emulates a vt100 terminal running on a
               40x24 uppercase-only screen.

               For example:

                    apple2 -text \
                           -program ’cat /usr/src/linux*/README | fold -sw40’
                    apple2 -text -program ’ping apple.com’
                    apple2 -text -program ’ps -e’
                    apple2 -text -program ’od -txCz -w7 /dev/urandom’
                    apple2 -text -program ’cat /dev/random’
                    apple2 -text -fast -program ’xemacs -nw -q -f life’
                    apple2 -text -fast \
                           -program ’xemacs -nw -q --eval "(hanoi 5)"’

               You can also use apple2 as an extremely lo-fi  replacement  for
               the xterm(1) and gnome-terminal(1) terminal emulators:

                    apple2 -text -fast -program tcsh


       -pty    In  -text  mode,  launch the sub-program under a pty so that it
               can address the screen directly.  This is the default.

       -pipe   In -text mode, launch the sub-program at the end of a pipe:  do
               not let it address the screen directly.

       -esc    When  the user types a key with the Alt or Meta keys held down,
               send an ESC character first.  This is the default.

       -meta   When Meta or Alt are held down, set the high bit on the charac-
               ter instead.

       -del    Swap Backspace and Delete.  This is the default.

       -bs     Do not swap Backspace and Delete.

       -fast   Normally,  characters  are  printed at the speed of an original
               Apple][ computer; however, when using this program as a  termi-
               nal  emulator,  the  novelty of those 300 baud characters might
               wear off.  You can use the -fast option to speed  things  up  a
               bit.


TERMINAL EMULATION

       By  default,  apple2 allocates a pseudo-tty for the -text-mode sub-pro-
       cess to run under.  This has the desirable side effect that the program
       will be able to use ioctl(2) to fetch information about terminal param-
       eters and window size, which many programs (such as top(1)) need to run
       properly.  apple2  will also set the environment variable TERM to vt100
       in the child process.

       Any characters typed on the apple2 window will be passed along  to  the
       sub-process.  (Note that this only works when running in "window" mode,
       not when running in -root mode under xscreensaver.)


ENVIRONMENT

       DISPLAY to get the default host and display number.

       XENVIRONMENT
               to get the name of a resource file that  overrides  the  global
               resources stored in the RESOURCE_MANAGER property.

       TERM    to inform the sub-process of the type of terminal emulation.


X RESOURCES

       Notable X resources supported include the following which correspond to
       standard TV controls: analogTVTint, analogTVColor,  analogTVBrightness,
       and  analogTVContrast  which  correspond  to standard TV controls. They
       range from 0 to 100,except for tint which is an angle between -180  and
       +180.


TRADEMARKS

       Apple ][ and Applesoft are trademarks of Apple Computer.



SEE ALSO

       xscreensaver(1),   bsod(1),   xscreensaver-text(1),  fortune(1),  phos-
       phor(1), starwars(1), ljlatest(1), dadadodo(1),  webcollage(1),  drift-
       net(1) EtherPEG, EtherPeek, console_codes(4).


COPYRIGHT

       Copyright  ©  2002-2003  by Trevor Blackwell.  Permission to use, copy,
       modify, distribute, and sell this software and  its  documentation  for
       any  purpose  is  hereby  granted  without fee, provided that the above
       copyright notice appear in all copies  and  that  both  that  copyright
       notice  and  this permission notice appear in supporting documentation.
       No representations are made about the suitability of this software  for
       any  purpose.   It  is provided "as is" without express or implied war-
       ranty.


AUTHOR

       Television and Apple ][ emulation by  Trevor  Blackwell  <tlb@tlb.org>.
       Slideshow and text mode by Jamie Zawinski <jwz@jwz.org>.  Pty and vt100
       emulation by Fredrik Tolf <fredrik@dolda2000.com>.



X Version 11                      5-May-2004                   XScreenSaver(1)

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