---
title: Function List
slug: docs-sb4-function-list
system: SmileBASIC 4
type: reference
source: https://smilebasicsource.com/forum/thread/docs-sb4-function-list
content_id: 19450
created: 2020-05-10
scraped: 2026-06-21
---

# Function List

someone improve this later
also these should be links

| `ABS` | absolute value |
| `ACCEL` | read accelerometer |
| `ACLS` | reset graphics |
| `ACOS` | inverse cosine |
| `ANIMDEF` | define sprite/text animation |
| `ARRAY#` | create float array |
| `ARRAY$` | create string array |
| `ARRAY%` | create int array |
| `ARYOP` | array operation |
| `ASC` | convert character to ascii value |
| `ASIN` | inverse sine |
| `ATAN` | inverse tangent |
| `ATTR` | set text rotation attribute |
| `BACKCOLOR` | set background color |
| `BEEP` | play sound effect |
| `BEEPPAN` | set beep pan |
| `BEEPPIT` | set beep pitch |
| `BEEPSTOP` | stop beep |
| `BEEPVOL` | set beep volume |
| `BGMCHK` | check music |
| `BGMCLEAR` | clear song definition |
| `BGMCONT` | unpause music |
| `BGMPAUSE` | pause music |
| `BGMPITCH` | set music pitch |
| `BGMPLAY` | play music |
| `BGMSET` | define song |
| `BGMSETD` | define song with `DATA` |
| `BGMSTOP` | stop music |
| `BGMVAR` | get/set music variable |
| `BGMVOL` | set music volume |
| `BGMWET` | set music effector strength |
| `BIN$` | convert number to binary string |
| `BIQUAD` | apply biquadratic filter |
| `BQPARAM` | generate `BIQUAD` filter |
| `BREAK` | exit loop |
| `BREPEAT` | set button repeat rate |
| `BUTTON` | get button input |
| `CALL` | call function by name |
| `CALLIDX` | get sprite/text id in callback |
| `CASE` | start CASE block |
| `CEIL` | round number upwards |
| `CHKCALL` | check if function exists |
| `CHKCHR` | get charcater from text screen |
| `CHKFILE` | check if file exists |
| `CHKLABEL` | check if label exists |
| `CHKMML` | check if MML is valid |
| `CHKVAR` | check if variable exists |
| `CHR$` | convert ascii value to string |
| `CLASSIFY` | check if number is infinity or NaN |
| `CLIPBOARD` | get/set editor clipboard |
| `CLS` | clear text screen |
| `COLOR` | set text color |
| `COMMON` | define shared function |
| `CONST` | define constant |
| `CONTINUE` | jump to start of loop |
| `CONTROLLER` | get controller status |
| `COPY` | copy data between arrays |
| `COS` | cosine |
| `COSH` | hyperbolic cosine |
| `DATA` | define data |
| `DATE$` | get current date |
| `DEC` | decrement variable |
| `DEFARG` | get function argument |
| `DEFARGC` | get function argument count |
| `DEFOUT` | set function output |
| `DEFOUTC` | get function output count |
| `DEG` | convert radians to degrees |
| `DELETE` | delete file |
| `DIALOG` | display dialog |
| `DIM` | create array, get array dimensions |
| `DTREAD` | decode date string |
| `EFCEN` | enable/disable effector |
| `EFCSET` | set effector parameters |
| `EFCWET` | set effector strength |
| `ELSE` |  |
| `ELSEIF` |  |
| `END` | end function |
| `ENDCASE` | end case block |
| `ENDIF` | end if |
| `ENDLOOP` | end loop |
| `ENUM` | define enum |
| `ENVFOCUS` | get/set envprogram focus |
| `ENVINPUT$` | get direct mode history |
| `ENVLOAD` | copy data from the main interpreter to the subprogram interpreter |
| `ENVLOCATE` | ? |
| `ENVPROJECT` | set subprogram project |
| `ENVSAVE` | copy data from subprogram to main program |
| `ENVSTAT` | get/set interpreter status |
| `ENVTYPE` | check which interpreter is running |
| `EXEC` | execute code in slot |
| `EXP` | calculate power of /e/ |
| `FADE` | set screen fade color |
| `FADECHK` | check screen fade status |
| `FFT` | fast fourier transform |
| `FFTWFN` | generate FFT window |
| `FILES` | get list of files |
| `FILL` | fill array |
| `FLOAT` | convert int to float |
| `FLOOR` | round number down |
| `FONTINFO` | get info about character |
| `FOR` | for loop |
| `FORMAT$` | string formatting |
| `FREEMEM` | check free memory |
| `GARRAY` | get graphics page array |
| `GBOX` | draw unfilled rectangle |
| `GCIRCLE` | draw unfilled circle |
| `GCLIP` | set graphics drawing region |
| `GCLS` | clear graphics page |
| `GCOLOR` | set graphics drawing color |
| `GCOPY` | copy graphics data |
| `GFILL` | draw filled rectangle |
| `GLINE` | draw line |
| `GLOAD` | load data from an array to the graphics page |
| `GOSUB` | run subroutine |
| `GOTO` | goto |
| `GPAINT` | fill enclosed area on graphics page |
| `GPGET` | get color of pixel |
| `GPSET` | draw pixel |
| `GPUTCHR` | draw text on graphics page |
| `GSAMPLE` | set graphics wrap mode |
| `GSAVE` | save graphics data to array |
| `GTARGET` | set current graphics page |
| `GTRI` | draw filled triangle |
| `GUPDATE` | update graphics after modifying `GARRAY` |
| `GYROA` | get gyroscope angle |
| `GYROSYNC` | reset gyroscope |
| `GYROV` | get gyroscope velocity |
| `HELPGET` | get data from manual |
| `HELPINFO` | get data from manual |
| `HEX$` | convert number to hexadecimal string |
| `HSV` | convert color to HSV |
| `IF` | if |
| `IFFT` | inverse fast fourier transform |
| `INC` | increment variable |
| `INKEY$` | get keyboard input |
| `INPUT` | input values |
| `INSERT` | insert data into array |
| `INSPECT` | display information about value |
| `INSTR` | string search |
| `INT` | convert number to integer |
| `IRREAD` | read data from IR camera |
| `IRSPRITE` | display IR camera image on sprite |
| `IRSTART` | start IR camera |
| `IRSTATE` | get IR camera state |
| `IRSTOP` | stop IR camera |
| `KEY` | set function key |
| `KEYBOARD` | get raw keypresses |
| `LAST` | last index in string/array (`LEN(x)-1`) |
| `LAYER` | set layer mode |
| `LCLIP` | set layer clipping region |
| `LEFT$` | get characters from start of string |
| `LEN` | get length of string/array |
| `LFILTER` | set layer filter |
| `LINPUT` | string input |
| `LMATRIX` | set layer transform matrix |
| `LOAD` | load program file into slot |
| `LOADG` | load image onto graphics page |
| `LOADV` | load string/array |
| `LOCATE` | set text cursor position |
| `LOG` | calculate logarithm |
| `LOOP` | start of infinite loop |
| `MAINCNT` | get frame count |
| `MAX` | get maximum value in array/list |
| `MBUTTON` |  |
| `METAEDIT` |  |
| `METALOAD` |  |
| `METASAVE` |  |
| `MID$` | get part of string |
| `MILLISEC` | read millisecond timer |
| `MIN` | get minimum value in array/list |
| `MOUSE` | get mouse data |
| `NEXT` | end of `FOR` loop |
| `ON` | jump table |
| `OPTION` | set compiler option |
| `OTHERWISE` | default condition in CASE/WHEN block |
| `OUT` | function output |
| `PCMCONT` | unpause PCM |
| `PCMPOS` | get/set PCM playback position |
| `PCMSTOP` | stop pcm |
| `PCMSTREAM` | set PCM array/sample rate |
| `PCMVOL` | set PCM volume |
| `PERFBEGIN` | start performance timer |
| `PERFEND` | stop performance timer |
| `POP` | remove last item from array |
| `POW` | exponent |
| `PRGDEL` | delete line from slot |
| `PRGEDIT` | choose slot/line to edit |
| `PRGGET$` | get line from slot |
| `PRGINS` | insert lines in slot |
| `PRGNAME$` | get slot name |
| `PRGSEEK` |  |
| `PRGSET` | set line in slot |
| `PRGSIZE` | get slot size |
| `PRINT` | display text |
| `PROJECT` | get/set current project folder |
| `PUSH` | add item to end of array/string |
| `PUSHKEY` | add keypress to input buffer |
| `RAD` | convert degrees to radians |
| `RANDOMIZE` | seed randomizer |
| `READ` | read `DATA` |
| `REM` | comment |
| `REMOVE` | remove data from array |
| `RENAME` | rename file |
| `REPEAT` | start of `REPEAT`/`UNTIL` loop |
| `RESIZE` | resize array |
| `RESTORE` | set `DATA` read position |
| `RESULT` | get result of LOAD/DIALOG/etc. |
| `RETURN` | return from function/GOSUB |
| `RGB` | convert between color and separate RGB channels (0-255) |
| `RGBF` | convert between color and separate RGB channels (0-1) |
| `RIGHT$` | get characters from end of string |
| `RINGCOPY` | copy data to(?) ringbuffer |
| `RND` | get random integer |
| `RNDF` | get random number from 0-1 |
| `ROUND` | round number to nearest |
| `RSORT` | sort an array from largest to smallest |
| `SAVE` | save slot |
| `SAVEG` | save graphics |
| `SAVEV` | save string/array |
| `SCROLL` | shift data in text screen |
| `SGN` | get sign of number |
| `SHIFT` | remove item from beginning of string/array |
| `SIN` | sine |
| `SINH` | hyperbolic sine |
| `SNDMSBAL` | set subprogram sound balance |
| `SNDMVOL` | set master sound volume |
| `SNDSTOP` | stop all sounds |
| `SORT` | sort array from smallest to largest |
| `SPANIM` | start sprite animation |
| `SPCHK` | check sprite animation status |
| `SPCHR` | set sprite to definition |
| `SPCLR` | delete sprite |
| `SPCOL` | set sprite collision settings |
| `SPCOLOR` | set sprite color |
| `SPCOLVEC` | set sprite collision vector |
| `SPDEF` | define sprite definition |
| `SPFUNC` | set sprite callback function |
| `SPHIDE` | hide sprite |
| `SPHITINFO` | get collision information |
| `SPHITRC` | check collision between sprite and rectangle |
| `SPHITSP` | check collision between sprites |
| `SPHOME` | set sprite origin |
| `SPLAYER` | set sprite layer |
| `SPLINK` | link sprites |
| `SPOFS` | set sprite position |
| `SPPAGE` | set sprite graphics page |
| `SPROT` | set sprite rotation |
| `SPSCALE` | set sprite scale |
| `SPSET` | create sprite |
| `SPSHOW` | unhide sprite |
| `SPSTART` | unpause sprite animation |
| `SPSTOP` | pause sprite animation |
| `SPUNLINK` | unlink sprites |
| `SPUSED` | check if sprite exists |
| `SPVAR` | get/set sprite variable |
| `SQR` | square root |
| `STICK` | get analog stick position |
| `STOP` | stop program |
| `STR$` | convert number to decimal string |
| `SUBST$` | replace part of string |
| `SWAP` | swap the values of 2 variables |
| `SYSPARAM` | get system parameter |
| `TALK` | speech synthesis |
| `TALKCHK` | check talk status |
| `TALKSTOP` | stop speech synthesis |
| `TAN` | tangent |
| `TANH` | hyperbolic tangent |
| `TANIM` | start text screen animation |
| `TARRAY` | get text screen data array |
| `TBLEND` |  |
| `TCBIKE` |  |
| `TCFISHING` |  |
| `TCHK` |  |
| `TCHOUSE` |  |
| `TCOLOR` |  |
| `TCOPY` |  |
| `TCPIANO` |  |
| `TCROBOT` |  |
| `TCVISOR` |  |
| `TFILL` | fill region of text screen |
| `TFUNC` | set text screen callback function |
| `THEN` | if/then |
| `THIDE` | hide text screen |
| `THOME` | set text screen origin |
| `TIME$` | get current time |
| `TLAYER` | set text screen layer |
| `TLOAD` | load data from text screen to array |
| `TMREAD` | decode time string |
| `TOFS` | set text screen position |
| `TOUCH` | read touch screen data |
| `TPAGE` | set text screen graphics page |
| `TPRINT` | print to text screen |
| `TPUT` | set tile on text screen |
| `TROT` | set text screen rotation |
| `TSAVE` | copy data from text screen to array |
| `TSCALE` | set text screen scale |
| `TSCREEN` | set text screen size |
| `TSHOW` | unhide text screen |
| `TSTART` | unpause text screen animation |
| `TSTOP` | pause text screen animation |
| `TUPDATE` | update text screen after modifying TARRAY |
| `TVAR` | get/set text screen variable |
| `TYPEOF` | get type of value |
| `UIMASK` |  |
| `UIPUSHCMPL` |  |
| `UISTATE` |  |
| `UNSHIFT` | insert item at start of string/array |
| `UNTIL` | end of REPEAT loop |
| `VAL` | convert string to number |
| `VAR` | create variable, get variable from name |
| `VIBRATE` | set joycon vibration settings |
| `VSYNC` | wait for start of frame |
| `WAIT` | delay |
| `WAVSET` | define custom instrument from string |
| `WAVSETA` | define custom instrument from array |
| `WEND` | end of WHILE loop |
| `WHEN` | condition in CASE block |
| `WHILE` | WHILE/WEND loop |
| `XCTRLSTYLE` |  |
| `XSCREEN` | set screen resolution |
| `XSUBSCREEN` |  |