1apple2(6x) XScreenSaver manual apple2(6x)
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6 apple2 - Apple ][ display emulator
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9 apple2 [--display host:display.screen] [--foreground color] [--back‐
10 ground color] [--window] [--root] [--window-id number][--mono] [--in‐
11 stall] [--visual visual] [--program command to run] [--basic]
12 [--slideshow] [--text] [--meta] [--esc] [--bs] [--del] [--fast] [--fps]
13
15 The apple2 program simulates an original Apple ][ Plus computer in all
16 its 1979 glory. It also reproduces the appearance of display on a color
17 television set of the period.
18 There are 3 modes: basic, slideshow, and text. Normally it chooses a
20 mode randomly, but you can override with the --basic, --slideshow, or
21 --text options.
22 In basic mode a simulated user types in a Basic program and runs it.
24 In slideshow mode it chooses a number of images from the image source
26 you configured into XScreenSaver and displays them within the limita‐
27 tions of the Apple ][ display hardware. With only 6 available colors,
28 you can only make out the general shape of the pictures.
29 In text mode it displays the output of a command or the contents of a
31 file or URL (via the default xscreensaver-text(6x) program, which can
32 be overridden with --program).
33 In text mode, it is also a fully functional (if anachronistic) vt100
35 terminal emulator.
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38 apple2 accepts the following options:
39 --window
41 Draw on a newly-created window. This is the default.
42 --root Draw on the root window.
44 --window-id number
46 Draw on the specified window.
47 --mono If on a color display, pretend we're on a monochrome display.
49 --install
51 Install a private colormap for the window.
52 --visual visual
54 Specify which visual to use. Legal values are the name of a
55 visual class, or the id number (decimal or hex) of a specific
56 visual.
57 --basic Choose basic mode
59 --slideshow
61 Choose slideshow mode
62 --text Choose text mode
64 --program sh-command
66 In text mode, the command to run to generate the text to dis‐
67 play. This option may be any string acceptable to /bin/sh. The
68 program will be run at the end of a pipe, and any characters
69 that it prints to stdout will be printed on the Apple ][ dis‐
70 play. If the program exits, it will be launched again after 3
71 seconds. Default: xscreensaver-text(6x).
72 In text mode, apple2 emulates a vt100 terminal running on a
74 40x24 uppercase-only screen.
75 For example:
77 apple2 --text --program 'ping apple.com'
79 apple2 --text --program 'ps -e'
80 apple2 --text --program 'od -txCz -w7 /dev/urandom'
81 apple2 --text --program 'cat /dev/random'
82 apple2 --text --fast --program 'emacs -nw -q -f life'
83 apple2 --text --fast \
84 --program 'emacs -nw -q --eval "(hanoi 5)"'
85 You can also use apple2 as an extremely lo-fi replacement for
87 the xterm(1) and gnome-terminal(1) terminal emulators:
88 apple2 -text -fast -program tcsh
90 --pty In --text mode, launch the sub-program under a pty so that it
93 can address the screen directly. This is the default.
94 --pipe In --text mode, launch the sub-program at the end of a pipe: do
96 not let it address the screen directly.
97 --esc When the user types a key with the Alt or Meta keys held down,
99 send an ESC character first. This is the default.
100 --meta When Meta or Alt are held down, set the high bit on the charac‐
102 ter instead.
103 --del Swap Backspace and Delete. This is the default.
105 --bs Do not swap Backspace and Delete.
107 --fast Normally, characters are printed at the speed of an original
109 Apple][ computer; however, when using this program as a termi‐
110 nal emulator, the novelty of those 300 baud characters might
111 wear off. You can use the --fast option to speed things up a
112 bit.
113 --fps Display the current frame rate and CPU load.
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117 By default, apple2 allocates a pseudo-tty for the --text-mode sub-
118 process to run under. This has the desirable side effect that the pro‐
119 gram will be able to use ioctl(2) to fetch information about terminal
120 parameters and window size, which many programs (such as top(1)) need
121 to run properly. apple2 will also set the environment variable TERM to
122 vt100 in the child process.
123 Any characters typed on the apple2 window will be passed along to the
125 sub-process. (Note that this only works when running in "window" mode,
126 not when running in --root mode under xscreensaver.)
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129 DISPLAY to get the default host and display number.
130 XENVIRONMENT
132 to get the name of a resource file that overrides the global
133 resources stored in the RESOURCE_MANAGER property.
134 XSCREENSAVER_WINDOW
136 The window ID to use with --root.
137 TERM to inform the sub-process of the type of terminal emulation.
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141 Notable X resources supported include the following which correspond to
142 standard TV controls: analogTVTint, analogTVColor, analogTVBrightness,
143 and analogTVContrast which correspond to standard TV controls. They
144 range from 0 to 100,except for tint which is an angle between -180 and
145 +180.
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148 Apple ][ and Applesoft are trademarks of Apple Computer.
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152 xscreensaver(1), bsod(6x), xscreensaver-text(6x), fortune(1), phos‐
153 phor(6x), starwars(6x), ljlatest(6x), dadadodo(1), webcollage(6x),
154 driftnet(1) EtherPEG, EtherPeek, console_codes(4).
155
157 Copyright © 2002-2003 by Trevor Blackwell. Permission to use, copy,
158 modify, distribute, and sell this software and its documentation for
159 any purpose is hereby granted without fee, provided that the above
160 copyright notice appear in all copies and that both that copyright no‐
161 tice and this permission notice appear in supporting documentation. No
162 representations are made about the suitability of this software for any
163 purpose. It is provided "as is" without express or implied warranty.
164
166 Television and Apple ][ emulation by Trevor Blackwell <tlb@tlb.org>.
167 Slideshow and text mode by Jamie Zawinski <jwz@jwz.org>. Pty and vt100
168 emulation by Fredrik Tolf <fredrik@dolda2000.com>.
169X Version 11 6.08-1.fc39 (17-Oct-2023) apple2(6x)