15 is an emulator for the Atari 2600.
16 It exectues the romfile given as an argument,
17 and controls as if using a regular 4-direction 1-button joystick,
18 using \fBspace\fR button and directional keys.
19 The \fBq\fR, \fBw\fR, \fBe\fR, \fBr\fR keys correspond respectively to the reset, select, player 1 difficulty and color mode switches.
34 Scale the screen to a given factor regardless of the window's size.
36 .B /sys/src/games/2600
41 first appeared in 9front (November, 2014).