plan9fox/sys/man/1/atari

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.TH ATARI 1
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.SH NAME
2600 \- emulator
.SH SYNOPSIS
.B games/2600
[
.B -a
] [
.B -x
.I scale
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]
.I romfile
.SH DESCRIPTION
.I 2600
is an emulator for the Atari 2600.
It exectues the romfile given as an argument,
and controls as if using a regular 4-direction 1-button joystick,
using \fBspace\fR button and directional keys.
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The \fBq\fR, \fBw\fR, \fBe\fR and \fBr\fR keys correspond respectively to the reset, select, player 1 difficulty and color mode switches.
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Other keys:
.TP
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F1
Pause the emulator. If already paused it will step one video frame.
.TP
F12
Toggle the emulator's speedometer. It shows in the upper left,
off-viewport corner, the ratio between the expected and observed time it
took to draw 60 frames.
.TP
t
Toggle tracing of the emulator.
.TP
`
It uncaps the 60fps frame rate and lets emulation go as fast as possible.
.TP
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Esc
Pause the emulator.
.TP
Del
Exit the emulator.
.PP
Command line options:
.TP
.B -a
Enable audio output.
.TP
.B -x
Scale the screen to a given factor regardless of the window's size.
.PP
A joystick may be used to play the emulator via
.IR joy (1).
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.SH SOURCE
.B /sys/src/games/2600
.SH BUGS
Yes.
.SH HISTORY
.I 2600
first appeared in 9front (November, 2014).