Keyword list
Keyword | Description |
? | Alias to PRINT |
' | Alias to REM |
ATTRB | Character attributes |
BOX (x1,y1)-(x2,y2) | Draws a rectangle (the top left pixel is (0,0) |
BOXF (x1,y1)-(x2,y2),color | Fills a rectangle with the given color (optional, if not given use the current pen color). Negative colors lead to filling with the requested color as the background one. |
CLS | Clear screen |
COLOR foreground,background | Change pen colors (parameters are optional) |
CONSOLE | |
DELETE | |
END | Ends program execution |
FOR v=s TO e STEP n | FOR loop, incrementing v by n each time until it reaches e. The STEP is optional (default is 1) and can be negative. |
GOTO line | Jump to program line |
IF a THEN statement ELSE statement | Conditions (the statement can be just a line number) |
INPUT “message”;variable1,variable2 | Set variables to user-entered values (comma separated). A ? is printed after the message and before reading the values from the user. |
LINE (x1,y1)-(x2,y2) | Draws a line (first point is optional, current cursor position is used: LINE -(x2,y2) ) |
LIST line | List the program in memory (parameter is optional, if missing the whole program is listed) |
LOCATE x,y | Move the cursor |
NEW | New program, remove current one from memory |
NEXT v | Closes FOR loop. |
PLAY s$ | Plays music. The string is made of notes DO,RE,MI,FA,SO,LA,SI (with # and b modifiers), octave changes (O1-O5), note duration changes (L1-L96), silences (P), tempo changes (T1-T256), attack settings (A0-A255). Spaces are ignored and can be used for readability |
PRINT value | Prints a value (if the value is suffixed with a ; insert a tabulation after it. else goes to next line) |
PRINT USING | |
PSET(x,y) | Set a pixel |
REM | Comments (REMark). Anything following this on the line is ignored. |
RUN | run the program |
SCREEN foreground,background,border | Changecolors for whole screen |
Function | Description |
COS(v) | Cosine |
INT(v) | Integer part of value |
INSTR | |
LEFT$(s$,n) | Get a substring of the N first chars of S |
LEN(s$) | Get length of string |
MID$ | |
RIGHT$(s$,n) | Get a substring of the N last chars of S |
RND | Random value between 0 and 1 |
SIN(v) | Sine |
STR$ | |
VAL | |
Operator | Description |
+ | Addition, string concatenation |
- | Substraction |
* | Multiplication |
/ | Division |
MOD | Modulo |
@ | Integer division |
= | Assignment |
^ | Exponent |
Condition | Description |
= | Equality |
Tips and tricks
The PLAY command can be used for accurate delays.