jit.atari2600

An Atari 2600 emulator for Jitter.

The jit.atari2600 object emulates the Atari 2600 video game console from 1977. The pixels from the running Atari 2600 emulation are drawn as simple shapes on a connected grid (see jit.gl.gridshape). This means that the Atari game screen can be mapped to a number of surfaces (sphere, torus, cylinder, opencylinder, cube, opencube, plane, and circle). This data is sent to the leftmost outlet as a matrix. The jit.atari2600 object requires one argument: the name of a drawing context. A named drawing context is a named instance of a jit.window, jit.pwindow, or jit.matrix object that has an instance of the jit.gl.render object associated with it. This value may also be set via the OB3D drawto attribute.

Attributes:

Name	Type	Description
dim	int list[2]	The dimensions of the grid (default = 20 20)
m2	long	Manipulate player 0 graphics.
m3	long	Manipulate the application of horizontal motion.
m4	long	Toggle horizontal sync wait.
m5	long	Manipulate color-luminance for player 0.
m6	long	Manipulate color-luminance for player 1.
m7	long	Manipulate color-luminance of the playfield.
m8	long	Manipulate color-luminance of the background.
m9	long	Manipulate playfield control, ball size, collisions.
m10	long	Manipulate playfield register byte 0.
m11	long	Manipulate playfield register byte 1.
m12	long	Manipulate playfield register byte 2.
m13 - m25	long	Various register manipulation techniques. What is done isn't as important as how it looks. Experiement.
m26 - m29	long	Currently unused.
m30	long	Map random emulation parameters to TIA register writes. Make the screen glitch in relation to the Atari sound. Please note that audio must be turned on to see the effects.
tiamask	long	Redirect TIA register writes to different addresses.
tiavaluemask	long	Modify TIA register writes with modified values.
audchan1vol	long	Increase or decrease channel 1 volume.
audchan2vol	long	Increase or decrease channel 2 volume.
clock	long	Manipulate the emulator clock cycle counter.
rom	symbol	Cartridge ROM file to be played.
controller (deprecated) See .help	long	Controller values to be sent to the emulator. It is a 16 bit value. The low byte is the (state) and the high byte is the (value). The (state) ranges from 0 to 1: (1 = ON; 0 = OFF) The (value) uses the following mapping: Player 1: 123 -> Left 124 -> Right 125 -> Down 126 -> Up 049 -> Fire Player 2: 003 -> Left 005 -> Right 009 -> Down 017 -> Up 036 -> Fire 012 -> Reset 117 -> Select Remember that for a given value, the OFF state should follow the ON state. See the jit.atari2600.help file for an example.
visualizer	long	ROM read visualizer. (default = 0) 1 = (on) 0 = (off) (Note that not all Cartridge types are supported. This will be fixed soon.)
gridmode	int	Grid render mode (default = 0 (quadrilateral grid)) 0 = quad_grid (quadrilateral grid) 1 = tri_grid (triangular grid)
rad_minor	float	The minor radius of a torus, if one is rendered or sent out as a matrix. (default = 0.25)
shape	symbol	The shape to be used (default = plane) Supported shapes are: sphere torus cylinder opencyclinder cube opencube plane circle