Commands:

DATA - Starts a data section
DEND - Ends a data section
BITM [name],[size] - (used in a data section) Creates a bitmap with a name of [name] and a height and width of [size]
ARRY [array name],[size] - Defines array [array name] with size of [size]
SIZE [varname 1],[int name] - Stores size of array or string [varname1] to [int name]
CLRS - Clears screen buffer
TEXT [x],[y],[string],[color] - Draws [string] at [x],[y] in [color]
LINE [x1],[y1],[x2],[y2],[color] - Draws line from [x1],[y1] to [x2],[y2] in [color]
PIXL [x],[y],[color] - Sets pixel at [x],[y] to [color]
PIXT [x],[y],[int name] - Stores color of pixel at [x],[y] to [int name]
SPRT [sprite name],[bitmap name] - Creates a new sprite [sprite name], with the graphics data contained in [bitmap name] and a position of 0,0
DISP [sprite name] - Draws sprite [sprite name] (if sprite name is replaced with .0, all existing sprites are drawn)
DBMP [bitmap name],[x],[y] - Draws bitmap [bitmap name] at [x],[y]
CLSN [sprite name 1],[sprite name 2],[int name] - Detects if [sprite name 1] and [sprite name 2] are colliding, sets [int name] to 1 if so, otherwise sets [int name] to 0
CLSN [sprite name],0,[int name],[pointer name] - Detects if [sprite name] is touching any other existing sprites, if not sets [int name] to 0, otherwise sets [int name] to 1 and returns a pointer to the sprite that it's touching in [pointer name]
RECT [x1],[y1],[x2],[y2],[color1],[color2] - Draws a box from [x1],[y1] to [x2,y2] with line color of [color1], fill color of [color2]
DRAW - Draws contents of screen buffer to screen (all graphics operations draw to buffer)
STOP - Stores the contents of the screen buffer
RCLP - Recalls the saved screen buffer
X SHFT [x],[y],[mode] - Shifts the screen buffer horizontally by [x] and vertically by [y], loops if [mode] is -1, otherwise fills the area with color specified by [mode]
GKEY [keycode],[int name] - Sets [int name] to 1 if the key [keycode] is pressed, otherwise sets [int name] to 0
WKEY [int name] - Waits for a key to be pressed, then stores the keycode to [int name]
PAUS - Waits until Enter is pressed
FNCT [name] - Defines a function with a name of [name]
FRUN [name] - Runs the function [name]
FGOB - Jumps to the beginning of the current function
FEND - Returns from the current function, continuing execution after the line where the function was called
IIFF [conditional expression] - If [conditional expression] is true, executes the next line, otherwise skips it
RNDM [lower limit],[upper limit],[int name] - Generates a random number between [lower limit] and [upper limit], inclusive, and stores it to [int name]
HALT - Ends the program
X WAIT [delay] - Waits for a time determined by [delay] before continuing
WRTE [position],[varname] - Writes the contents of [varname] to position [position] in the program's data string
READ [position],[varname] - Reads the data from position [position] in the program's data string and stores it in [varname] (must be the same type of var as the stored data!!!)
POLR [length],[angle],[x int name],[y int name] - Converts the polar vector of [length], [angle] to a rectangular vector and stores the x portion in [x int name] and the y portion in [y int name]
SUBS [string],[starting position],[ending position],[string name] - Stores the segment of [string] from [starting position] to [ending position] in [string name]
RSET - Restarts the program (useful for returning to the title menu of a game, etc.)
CINT [string],[int name] - Converts the string [string] to a number and stores it in [int name] (negative numbers allowed)
ABSL [number],[int name] - Finds the absolute value of [number] and stores it in [int name]
INPT [x],[y],[prompt],[color],[var] - Displays [prompt] in [color] at [x], [y], waits for a number or string (depends on the type of [var]), and stores it to [var]
NMAP [width],[height],[map name] - Creates a tilemap with a name of [map name] and dimensions of [width] and [height]
TILE [map name],[bitmap 1],[bitmap 2]... - Sets the specified bitmaps in [map name] to be "solid"
CMAP [map name],[sprite name],[x array],[y array] - Finds where each corner of [sprite name] is touching [map name] and stores the positions of the map elements in [x array] and [y array] (the position of [map name] is determined from the position it was last drawn with DMAP)
~ TCHK [map name],[x array],[y array],[int name] - Checks each of the map elements specified by [x array], [y array] in [map name] - if any of them are "solid", [int name] is set to 1, otherwise [int name] is set to 0
DMAP [x],[y],[map name] - Draws [map name] with the top left corner at [x],[y]


Arguments:

[number]: Any numerical expression, can involve variables, numbers, sprite properties, the 4 basic operators, and the modulus operator ('|')
[int name]: The name of an integer variable, preceded by a % (array elements are also allowed for most commands - for example, "#PIXT 0,5,@COLOR(%X)"
[string name]: The name of a string variable, preceded by a '$'
[array name]: The name of an array variable, preceded by a '@'
[bitmap name]: The name of a bitmap defined in a data section, preceded with a '['
[sprite name]: The name of a sprite object, preceded with a '^'
[pointer name]: The name of a pointer, preceded with a '*'
[map name]: The name of a tilemap, preceded with a '{'
[color]: The color for a graphics operation: 0 is white, 1 is light gray, 2 is dark gray, 3 is black, 4 is inverted, and 5 is transparent (only allowed in rectangles)
[keycode]: A number representing a key: 10*row+col (on TI calcs, 4th row is skipped)
[conditional expression]: For example: "%A+2<73"  Separate expression segments can be separated with '&', and the expression will only be true if each segment is true - for example: "%A<%B&%B<%C&%C<%D"


Valid expressions (examples):

conditional
	numerical
		(valid conditional operators are <, >, =, !, and &)
		%POS+3=%X/8
		@ARRAY(8)>2
		%A=%B&%C=%D
	string
		(valid conditional operators are = and !)
		$STR="TI86"
		$STR1!$STR2
	bitmap
		(valid conditional operators are = and !)
		^SPR.BMP=[BMP1
		^SPR1.BMP!^SPR2.BMP
numerical
		%A=%A+3-%B/7
		%NUM=@ARY(%I+1)-2
		%INT+ (increments %INT)
		%INT- (decrements %INT)
		%INT+=2 (same as %INT=%INT+2)
		%INT-=2 (same as %INT=%INT-2)
		%INT/=4 (same as %INT=%INT/4)
		%INT*=4 (same as %INT=%INT*4)
array / tilemap
	full definition
		@ARRAY=3,2,0,89,%NUM,%NUM2+1
		{MAP=[BMP1,[BMP2,[BMP3,[BMP4
	single element
		@ARRAY(1)=7
		{MAP(1,2)=^SPR.BMP
string
		$STR="A test string"
		$STR=$STR+" "+$INP
		$STR=%INT+3
		$STR="Score:"+%SCR
sprite properties
		^SPR1.X=2
		^SPR1.Y=^SPR2.X+%VX
		^SPR.VX=3
		^SPR.VY=0-^SPR.VY
		^SPR.DX=50
		^SPR.DY=^SPR3.X*10
assigning pointers
		*PTR:%INT
		*PTR:@ARRAY
		*PTR:$STR
		*PTR:^SPR
		*PTR:[BMP
		*PTR:{MAP