@nataliapc/mcp-openmsx

{ "title": "MSX BASIC Programming Reference", "description": "Comprehensive reference documentation for MSX BASIC programming language commands, functions, statements, and procedures. Covers all standard MSX BASIC commands, mathematical functions, string operations, I/O operations, graphics commands, sound functions, and system calls.", "toc": [ { "title": "ABS() - Absolute Value Function", "uri": "msxdocs://basic_wiki/ABS()", "description": "Returns the absolute value of a numeric expression. Converts negative numbers to positive while leaving positive numbers unchanged." }, { "title": "AND - Logical AND Operator", "uri": "msxdocs://basic_wiki/AND", "description": "Performs logical AND operation between two expressions. Returns true only when both operands are true." }, { "title": "ASC() - ASCII Code Function", "uri": "msxdocs://basic_wiki/ASC()", "description": "Returns the ASCII code value of the first character in a string expression." }, { "title": "ATN() - Arctangent Function", "uri": "msxdocs://basic_wiki/ATN()", "description": "Returns the arctangent (inverse tangent) of a numeric expression in radians." }, { "title": "AUTO - Automatic Line Numbering", "uri": "msxdocs://basic_wiki/AUTO", "description": "Automatically generates line numbers when entering BASIC program lines, with optional increment values." }, { "title": "BASE() - Numeric Base Function", "uri": "msxdocs://basic_wiki/BASE()", "description": "Function for working with different numeric bases and base conversions in MSX BASIC." }, { "title": "BEEP - Sound Beep Command", "uri": "msxdocs://basic_wiki/BEEP", "description": "Produces a simple beep sound through the MSX sound system." }, { "title": "BIN$() - Binary String Function", "uri": "msxdocs://basic_wiki/BIN$()", "description": "Converts a numeric value to its binary string representation." }, { "title": "BLOAD - Binary Load Command", "uri": "msxdocs://basic_wiki/BLOAD", "description": "Loads binary data from tape or disk into memory at a specified address." }, { "title": "BSAVE - Binary Save Command", "uri": "msxdocs://basic_wiki/BSAVE", "description": "Saves a block of memory as binary data to tape or disk." }, { "title": "CALL - Machine Language Call", "uri": "msxdocs://basic_wiki/CALL", "description": "Calls a machine language subroutine at a specified memory address." }, { "title": "CALL ADJUST - Screen Adjustment", "uri": "msxdocs://basic_wiki/CALL_ADJUST", "description": "MSX2+ specific command for adjusting screen position and display parameters." }, { "title": "CALL IMPOSE - Image Overlay", "uri": "msxdocs://basic_wiki/CALL_IMPOSE", "description": "MSX2+ specific command for overlaying images and graphics on the screen." }, { "title": "CALL OPTIONS - System Options", "uri": "msxdocs://basic_wiki/CALL_OPTIONS", "description": "MSX2+ specific command for setting various system options and configurations." }, { "title": "CALL PAUSE - Execution Pause", "uri": "msxdocs://basic_wiki/CALL_PAUSE", "description": "MSX2+ specific command for pausing program execution." }, { "title": "CALL PCMPLAY - PCM Playback", "uri": "msxdocs://basic_wiki/CALL_PCMPLAY", "description": "MSX2+ specific command for playing PCM audio data." }, { "title": "CALL PCMREC - PCM Recording", "uri": "msxdocs://basic_wiki/CALL_PCMREC", "description": "MSX2+ specific command for recording PCM audio data." }, { "title": "CDBL() - Convert to Double Precision", "uri": "msxdocs://basic_wiki/CDBL()", "description": "Converts a numeric expression to double precision floating point format." }, { "title": "CHR$() - Character Function", "uri": "msxdocs://basic_wiki/CHR$()", "description": "Returns the character corresponding to a given ASCII code value." }, { "title": "CINT() - Convert to Integer", "uri": "msxdocs://basic_wiki/CINT()", "description": "Converts a numeric expression to integer format by rounding to the nearest whole number." }, { "title": "CIRCLE - Draw Circle Command", "uri": "msxdocs://basic_wiki/CIRCLE", "description": "Draws circles, ellipses, arcs, and sectors on the graphics screen." }, { "title": "CLEAR - Clear Variables Command", "uri": "msxdocs://basic_wiki/CLEAR", "description": "Clears all variables and sets aside space for string storage and stack." }, { "title": "CLOAD - Cassette Load Command", "uri": "msxdocs://basic_wiki/CLOAD", "description": "Loads a BASIC program from cassette tape into memory." }, { "title": "CLOAD? - Verify Cassette Load", "uri": "msxdocs://basic_wiki/CLOAD?", "description": "Verifies a BASIC program on cassette tape against the program in memory." }, { "title": "CLOSE - Close File Command", "uri": "msxdocs://basic_wiki/CLOSE", "description": "Closes one or more open files and frees file numbers for reuse." }, { "title": "CLS - Clear Screen Command", "uri": "msxdocs://basic_wiki/CLS", "description": "Clears the screen and homes the cursor to the upper-left corner." }, { "title": "COLOR - Set Color Command", "uri": "msxdocs://basic_wiki/COLOR", "description": "Sets the foreground, background, and border colors for text and graphics modes." }, { "title": "COLOR= - Color Palette Assignment", "uri": "msxdocs://basic_wiki/COLOR=", "description": "MSX2/2+ command for setting color palette entries with RGB values." }, { "title": "COLOR_SPRITE$() - Sprite Color String Function", "uri": "msxdocs://basic_wiki/COLOR_SPRITE$()", "description": "MSX2/2+ function that returns sprite color information as a string." }, { "title": "COLOR_SPRITE() - Sprite Color Function", "uri": "msxdocs://basic_wiki/COLOR_SPRITE()", "description": "MSX2/2+ function that returns sprite color information." }, { "title": "CONT - Continue Execution", "uri": "msxdocs://basic_wiki/CONT", "description": "Continues program execution after a STOP command or break." }, { "title": "COPY - Screen Copy Command", "uri": "msxdocs://basic_wiki/COPY", "description": "Copies screen content to printer or other output device." }, { "title": "COPY_SCREEN - Screen Copy Function", "uri": "msxdocs://basic_wiki/COPY_SCREEN", "description": "MSX2/2+ command for copying screen areas between video pages." }, { "title": "COS() - Cosine Function", "uri": "msxdocs://basic_wiki/COS()", "description": "Returns the cosine of an angle expressed in radians." }, { "title": "CSAVE - Cassette Save Command", "uri": "msxdocs://basic_wiki/CSAVE", "description": "Saves the current BASIC program to cassette tape." }, { "title": "CSNG() - Convert to Single Precision", "uri": "msxdocs://basic_wiki/CSNG()", "description": "Converts a numeric expression to single precision floating point format." }, { "title": "CSRLIN - Cursor Line Function", "uri": "msxdocs://basic_wiki/CSRLIN", "description": "Returns the current line position of the cursor on the screen." }, { "title": "DATA - Data Statement", "uri": "msxdocs://basic_wiki/DATA", "description": "Stores numeric and string constants that can be accessed by READ statements." }, { "title": "DEFDBL - Define Double Precision", "uri": "msxdocs://basic_wiki/DEFDBL", "description": "Declares that variables starting with specified letters are double precision by default." }, { "title": "DEFINT - Define Integer", "uri": "msxdocs://basic_wiki/DEFINT", "description": "Declares that variables starting with specified letters are integers by default." }, { "title": "DEFSNG - Define Single Precision", "uri": "msxdocs://basic_wiki/DEFSNG", "description": "Declares that variables starting with specified letters are single precision by default." }, { "title": "DEFSTR - Define String", "uri": "msxdocs://basic_wiki/DEFSTR", "description": "Declares that variables starting with specified letters are strings by default." }, { "title": "DEF FN - Define Function", "uri": "msxdocs://basic_wiki/DEF_FN", "description": "Defines a user-defined function that can be called later in the program." }, { "title": "DEF USR - Define User Routine", "uri": "msxdocs://basic_wiki/DEF_USR", "description": "Defines the starting address of a machine language routine accessible via USR function." }, { "title": "DELETE - Delete Lines Command", "uri": "msxdocs://basic_wiki/DELETE", "description": "Deletes specified lines from the current BASIC program." }, { "title": "DIM - Dimension Arrays", "uri": "msxdocs://basic_wiki/DIM", "description": "Declares and allocates space for arrays with specified dimensions." }, { "title": "DRAW - Draw Graphics Command", "uri": "msxdocs://basic_wiki/DRAW", "description": "Draws complex graphics using a string of drawing commands (macro language)." }, { "title": "ELSE - Conditional Else", "uri": "msxdocs://basic_wiki/ELSE", "description": "Provides alternative execution path in IF...THEN...ELSE conditional statements." }, { "title": "END - End Program", "uri": "msxdocs://basic_wiki/END", "description": "Terminates program execution and returns control to command mode." }, { "title": "EOF() - End of File Function", "uri": "msxdocs://basic_wiki/EOF()", "description": "Returns true if the end of a file has been reached during file operations." }, { "title": "EQV - Logical Equivalence", "uri": "msxdocs://basic_wiki/EQV", "description": "Performs logical equivalence operation between two expressions." }, { "title": "ERASE - Erase Arrays", "uri": "msxdocs://basic_wiki/ERASE", "description": "Erases arrays and frees the memory space they occupied." }, { "title": "ERL - Error Line Function", "uri": "msxdocs://basic_wiki/ERL", "description": "Returns the line number where the last error occurred." }, { "title": "ERR - Error Code Function", "uri": "msxdocs://basic_wiki/ERR", "description": "Returns the error code of the last error that occurred." }, { "title": "ERROR - Generate Error", "uri": "msxdocs://basic_wiki/ERROR", "description": "Generates a specified error condition for testing error handling routines." }, { "title": "EXP() - Exponential Function", "uri": "msxdocs://basic_wiki/EXP()", "description": "Returns e raised to the power of the specified expression." }, { "title": "FIELD - Define Record Fields", "uri": "msxdocs://basic_wiki/FIELD", "description": "Defines string variables to access portions of a random access file record." }, { "title": "FIX() - Fix Function", "uri": "msxdocs://basic_wiki/FIX()", "description": "Returns the integer portion of a number by truncating the decimal part." }, { "title": "FN - User-Defined Function Call", "uri": "msxdocs://basic_wiki/FN", "description": "Calls a user-defined function previously defined with DEF FN." }, { "title": "FOR...NEXT - Loop Structure", "uri": "msxdocs://basic_wiki/FOR...NEXT", "description": "Creates a counting loop that repeats a block of statements a specified number of times." }, { "title": "FRE() - Free Memory Function", "uri": "msxdocs://basic_wiki/FRE()", "description": "Returns the amount of available memory in bytes." }, { "title": "GET_DATE - Get System Date", "uri": "msxdocs://basic_wiki/GET_DATE", "description": "MSX2+ command that retrieves the current system date." }, { "title": "GET_TIME - Get System Time", "uri": "msxdocs://basic_wiki/GET_TIME", "description": "MSX2+ command that retrieves the current system time." }, { "title": "GOSUB - Goto Subroutine", "uri": "msxdocs://basic_wiki/GOSUB", "description": "Calls a subroutine at a specified line number and remembers the return location." }, { "title": "GOTO - Goto Statement", "uri": "msxdocs://basic_wiki/GOTO", "description": "Transfers program control unconditionally to a specified line number." }, { "title": "HEX$() - Hexadecimal String Function", "uri": "msxdocs://basic_wiki/HEX$()", "description": "Converts a numeric value to its hexadecimal string representation." }, { "title": "IF...GOTO...ELSE - Conditional Goto", "uri": "msxdocs://basic_wiki/IF...GOTO...ELSE", "description": "Conditional statement that transfers control to specified line numbers based on condition." }, { "title": "IF...THEN...ELSE - Conditional Statement", "uri": "msxdocs://basic_wiki/IF...THEN...ELSE", "description": "Conditional statement that executes different code blocks based on logical conditions." }, { "title": "IMP - Logical Implication", "uri": "msxdocs://basic_wiki/IMP", "description": "Performs logical implication operation between two expressions." }, { "title": "INKEY$ - Input Key Function", "uri": "msxdocs://basic_wiki/INKEY$", "description": "Returns the character of a key pressed on the keyboard without waiting." }, { "title": "INP() - Input Port Function", "uri": "msxdocs://basic_wiki/INP()", "description": "Reads a byte value from a specified I/O port." }, { "title": "INPUT$() - Input String Function", "uri": "msxdocs://basic_wiki/INPUT$()", "description": "Reads a specified number of characters from keyboard or file." }, { "title": "INPUT - Input Statement", "uri": "msxdocs://basic_wiki/INPUT", "description": "Accepts input from keyboard or file and assigns values to variables." }, { "title": "INSTR() - String Search Function", "uri": "msxdocs://basic_wiki/INSTR()", "description": "Searches for the position of a substring within a string." }, { "title": "INT() - Integer Function", "uri": "msxdocs://basic_wiki/INT()", "description": "Returns the largest integer less than or equal to the specified value." }, { "title": "INTERVAL - Set Timer Interval", "uri": "msxdocs://basic_wiki/INTERVAL", "description": "Sets the interval for the timer interrupt used with ON INTERVAL GOSUB." }, { "title": "KEY() - Function Key Status", "uri": "msxdocs://basic_wiki/KEY()", "description": "Returns the status of function keys and other special keys." }, { "title": "KEY - Key Assignment", "uri": "msxdocs://basic_wiki/KEY", "description": "Assigns strings to function keys and controls key display." }, { "title": "LEFT$() - Left String Function", "uri": "msxdocs://basic_wiki/LEFT$()", "description": "Returns a specified number of characters from the left side of a string." }, { "title": "LEN() - String Length Function", "uri": "msxdocs://basic_wiki/LEN()", "description": "Returns the number of characters in a string expression." }, { "title": "LET - Assignment Statement", "uri": "msxdocs://basic_wiki/LET", "description": "Assigns a value to a variable. The LET keyword is optional in most cases." }, { "title": "LINE - Draw Line Command", "uri": "msxdocs://basic_wiki/LINE", "description": "Draws lines, rectangles, and filled boxes on the graphics screen." }, { "title": "LINE INPUT - Line Input Statement", "uri": "msxdocs://basic_wiki/LINE_INPUT", "description": "Reads an entire line of input including commas and quotation marks." }, { "title": "LIST - List Program", "uri": "msxdocs://basic_wiki/LIST", "description": "Displays the current BASIC program or specified line ranges on screen." }, { "title": "LLIST - List to Printer", "uri": "msxdocs://basic_wiki/LLIST", "description": "Prints the current BASIC program or specified line ranges to printer." }, { "title": "LOAD - Load Program", "uri": "msxdocs://basic_wiki/LOAD", "description": "Loads a BASIC program from disk or tape into memory." }, { "title": "LOCATE - Position Cursor", "uri": "msxdocs://basic_wiki/LOCATE", "description": "Positions the text cursor at specified column and row coordinates." }, { "title": "LOG() - Natural Logarithm Function", "uri": "msxdocs://basic_wiki/LOG()", "description": "Returns the natural logarithm (base e) of a specified value." }, { "title": "LPOS() - Printer Position Function", "uri": "msxdocs://basic_wiki/LPOS()", "description": "Returns the current print head position on the printer." }, { "title": "LPRINT - Print to Printer", "uri": "msxdocs://basic_wiki/LPRINT", "description": "Sends formatted output directly to the printer." }, { "title": "MAXFILES - Set Maximum Files", "uri": "msxdocs://basic_wiki/MAXFILES", "description": "Sets the maximum number of files that can be open simultaneously." }, { "title": "MERGE - Merge Programs", "uri": "msxdocs://basic_wiki/MERGE", "description": "Merges a BASIC program from disk or tape with the program currently in memory." }, { "title": "MID$() - Middle String Function", "uri": "msxdocs://basic_wiki/MID$()", "description": "Returns a substring from the middle of a string expression." }, { "title": "MOD - Modulo Operator", "uri": "msxdocs://basic_wiki/MOD", "description": "Returns the remainder of integer division between two numbers." }, { "title": "MOTOR - Cassette Motor Control", "uri": "msxdocs://basic_wiki/MOTOR", "description": "Controls the cassette tape motor for tape operations." }, { "title": "NEW - Clear Program", "uri": "msxdocs://basic_wiki/NEW", "description": "Erases the current program and variables from memory." }, { "title": "NOT - Logical NOT Operator", "uri": "msxdocs://basic_wiki/NOT", "description": "Performs logical negation on an expression, inverting true/false values." }, { "title": "OCT$() - Octal String Function", "uri": "msxdocs://basic_wiki/OCT$()", "description": "Converts a numeric value to its octal string representation." }, { "title": "ON...GOSUB - Conditional Subroutine Call", "uri": "msxdocs://basic_wiki/ON...GOSUB", "description": "Calls one of several subroutines based on the value of an expression." }, { "title": "ON...GOTO - Conditional Branch", "uri": "msxdocs://basic_wiki/ON...GOTO", "description": "Transfers control to one of several line numbers based on expression value." }, { "title": "ON ERROR GOTO - Error Handling", "uri": "msxdocs://basic_wiki/ON_ERROR_GOTO", "description": "Sets up error handling by specifying where to branch when errors occur." }, { "title": "ON INTERVAL GOSUB - Timer Interrupt", "uri": "msxdocs://basic_wiki/ON_INTERVAL_GOSUB", "description": "Sets up a timer interrupt that calls a subroutine at regular intervals." }, { "title": "ON KEY GOSUB - Key Interrupt", "uri": "msxdocs://basic_wiki/ON_KEY_GOSUB", "description": "Sets up key press interrupts that call subroutines when specific keys are pressed." }, { "title": "ON SPRITE GOSUB - Sprite Interrupt", "uri": "msxdocs://basic_wiki/ON_SPRITE_GOSUB", "description": "Sets up sprite collision interrupts that call subroutines when sprites collide." }, { "title": "ON STOP GOSUB - Stop Key Interrupt", "uri": "msxdocs://basic_wiki/ON_STOP_GOSUB", "description": "Sets up interrupt handling for the STOP key press." }, { "title": "ON STRIG GOSUB - Trigger Interrupt", "uri": "msxdocs://basic_wiki/ON_STRIG_GOSUB", "description": "Sets up trigger/joystick button interrupts that call subroutines." }, { "title": "OPEN - Open File", "uri": "msxdocs://basic_wiki/OPEN", "description": "Opens a file for input, output, or random access operations." }, { "title": "OR - Logical OR Operator", "uri": "msxdocs://basic_wiki/OR", "description": "Performs logical OR operation between two expressions." }, { "title": "OUT - Output to Port", "uri": "msxdocs://basic_wiki/OUT", "description": "Sends a byte value to a specified I/O port." }, { "title": "PAD() - Touchpad Function", "uri": "msxdocs://basic_wiki/PAD()", "description": "Returns the status of touchpad coordinates and buttons." }, { "title": "PAINT - Paint Fill Command", "uri": "msxdocs://basic_wiki/PAINT", "description": "Fills an enclosed area on the graphics screen with a specified color or pattern." }, { "title": "PDL() - Paddle Function", "uri": "msxdocs://basic_wiki/PDL()", "description": "Returns the analog value of paddle controllers connected to the MSX." }, { "title": "PEEK() - Memory Peek Function", "uri": "msxdocs://basic_wiki/PEEK()", "description": "Returns the byte value stored at a specified memory address." }, { "title": "PLAY() - Music Status Function", "uri": "msxdocs://basic_wiki/PLAY()", "description": "Returns the number of notes remaining in the music buffer for specified sound channel." }, { "title": "PLAY - Music Play Command", "uri": "msxdocs://basic_wiki/PLAY", "description": "Plays music using Music Macro Language (MML) strings on PSG sound channels." }, { "title": "POINT - Point Function", "uri": "msxdocs://basic_wiki/POINT", "description": "Returns the color of a pixel at specified coordinates on the graphics screen." }, { "title": "POKE - Memory Poke Command", "uri": "msxdocs://basic_wiki/POKE", "description": "Stores a byte value at a specified memory address." }, { "title": "POS() - Print Position Function", "uri": "msxdocs://basic_wiki/POS()", "description": "Returns the current column position of the cursor or print head." }, { "title": "PRESET - Reset Pixel Command", "uri": "msxdocs://basic_wiki/PRESET", "description": "Sets a pixel to the background color at specified coordinates." }, { "title": "PRINT - Print Statement", "uri": "msxdocs://basic_wiki/PRINT", "description": "Displays text, numbers, and expressions on screen or sends data to files. Can be abbreviated as '?'." }, { "title": "PSET - Set Pixel Command", "uri": "msxdocs://basic_wiki/PSET", "description": "Sets a pixel to a specified color at given coordinates on the graphics screen." }, { "title": "PUT_KANJI - Display Kanji Character", "uri": "msxdocs://basic_wiki/PUT_KANJI", "description": "MSX2+ command for displaying Kanji characters from the Kanji ROM." }, { "title": "PUT_SPRITE - Put Sprite Command", "uri": "msxdocs://basic_wiki/PUT_SPRITE", "description": "Displays a sprite at specified coordinates with given pattern and attributes." }, { "title": "READ - Read Data Statement", "uri": "msxdocs://basic_wiki/READ", "description": "Reads values from DATA statements and assigns them to variables." }, { "title": "REM - Remark Statement", "uri": "msxdocs://basic_wiki/REM", "description": "Indicates a comment or remark in the program. Text after REM is ignored during execution." }, { "title": "RENUM - Renumber Lines", "uri": "msxdocs://basic_wiki/RENUM", "description": "Renumbers the lines of the current BASIC program with new increment values." }, { "title": "RESTORE - Restore Data Pointer", "uri": "msxdocs://basic_wiki/RESTORE", "description": "Resets the data pointer to the beginning of DATA statements or to a specified line." }, { "title": "RESUME - Resume After Error", "uri": "msxdocs://basic_wiki/RESUME", "description": "Resumes program execution after an error handling routine." }, { "title": "RETURN - Return from Subroutine", "uri": "msxdocs://basic_wiki/RETURN", "description": "Returns control from a subroutine to the statement following the GOSUB call." }, { "title": "RIGHT$() - Right String Function", "uri": "msxdocs://basic_wiki/RIGHT$()", "description": "Returns a specified number of characters from the right side of a string." }, { "title": "RND() - Random Number Function", "uri": "msxdocs://basic_wiki/RND()", "description": "Returns a random number between 0 and 1, or within a specified range." }, { "title": "RUN - Run Program", "uri": "msxdocs://basic_wiki/RUN", "description": "Starts execution of the current BASIC program, optionally from a specified line." }, { "title": "SAVE - Save Program", "uri": "msxdocs://basic_wiki/SAVE", "description": "Saves the current BASIC program to disk or tape." }, { "title": "SCREEN - Set Screen Mode", "uri": "msxdocs://basic_wiki/SCREEN", "description": "Sets the video display mode, determining resolution, colors, and graphics capabilities." }, { "title": "SET_ADJUST - Set Screen Adjustment", "uri": "msxdocs://basic_wiki/SET_ADJUST", "description": "MSX2+ command for adjusting screen position and display parameters." }, { "title": "SET_BEEP - Set Beep Parameters", "uri": "msxdocs://basic_wiki/SET_BEEP", "description": "MSX2+ command for setting beep sound parameters." }, { "title": "SET_DATE - Set System Date", "uri": "msxdocs://basic_wiki/SET_DATE", "description": "MSX2+ command for setting the system date." }, { "title": "SET_PAGE - Set Video Page", "uri": "msxdocs://basic_wiki/SET_PAGE", "description": "MSX2/2+ command for setting active and visible video pages." }, { "title": "SET_PASSWORD - Set Password", "uri": "msxdocs://basic_wiki/SET_PASSWORD", "description": "MSX2+ command for setting system password protection." }, { "title": "SET_PROMPT - Set Command Prompt", "uri": "msxdocs://basic_wiki/SET_PROMPT", "description": "MSX2+ command for customizing the command prompt." }, { "title": "SET_SCREEN - Set Screen Parameters", "uri": "msxdocs://basic_wiki/SET_SCREEN", "description": "MSX2+ command for setting various screen parameters and modes." }, { "title": "SET_SCROLL - Set Scroll Parameters", "uri": "msxdocs://basic_wiki/SET_SCROLL", "description": "MSX2/2+ command for setting hardware scrolling parameters." }, { "title": "SET_TIME - Set System Time", "uri": "msxdocs://basic_wiki/SET_TIME", "description": "MSX2+ command for setting the system time." }, { "title": "SET_TITLE - Set Screen Title", "uri": "msxdocs://basic_wiki/SET_TITLE", "description": "MSX2+ command for setting screen title text." }, { "title": "SET_VIDEO - Set Video Parameters", "uri": "msxdocs://basic_wiki/SET_VIDEO", "description": "MSX2+ command for setting video output parameters." }, { "title": "SGN() - Sign Function", "uri": "msxdocs://basic_wiki/SGN()", "description": "Returns the sign of a number: -1 for negative, 0 for zero, +1 for positive." }, { "title": "SIN() - Sine Function", "uri": "msxdocs://basic_wiki/SIN()", "description": "Returns the sine of an angle expressed in radians." }, { "title": "SOUND - Sound Command", "uri": "msxdocs://basic_wiki/SOUND", "description": "Generates sounds by directly controlling PSG sound chip registers." }, { "title": "SPACE$() - Space String Function", "uri": "msxdocs://basic_wiki/SPACE$()", "description": "Returns a string consisting of a specified number of space characters." }, { "title": "SPC() - Space Print Function", "uri": "msxdocs://basic_wiki/SPC()", "description": "Prints a specified number of spaces in PRINT statements." }, { "title": "SPRITE$() - Sprite String Function", "uri": "msxdocs://basic_wiki/SPRITE$()", "description": "Returns sprite pattern data as a string for manipulation and storage." }, { "title": "SPRITE - Sprite Command", "uri": "msxdocs://basic_wiki/SPRITE", "description": "Controls sprite attributes including position, color, and pattern." }, { "title": "SQR() - Square Root Function", "uri": "msxdocs://basic_wiki/SQR()", "description": "Returns the square root of a specified numeric expression." }, { "title": "STICK() - Joystick Function", "uri": "msxdocs://basic_wiki/STICK()", "description": "Returns the direction status of joystick controllers." }, { "title": "STOP - Stop Program", "uri": "msxdocs://basic_wiki/STOP", "description": "Halts program execution and displays 'Break in [line number]' message." }, { "title": "STR$() - String Conversion Function", "uri": "msxdocs://basic_wiki/STR$()", "description": "Converts a numeric value to its string representation." }, { "title": "STRIG() - Trigger Function", "uri": "msxdocs://basic_wiki/STRIG()", "description": "Returns the status of joystick trigger buttons and mouse buttons." }, { "title": "STRING$() - Repeat String Function", "uri": "msxdocs://basic_wiki/STRING$()", "description": "Returns a string consisting of a character repeated a specified number of times." }, { "title": "SWAP - Swap Variables", "uri": "msxdocs://basic_wiki/SWAP", "description": "Exchanges the values of two variables of the same type." }, { "title": "TAB() - Tab Print Function", "uri": "msxdocs://basic_wiki/TAB()", "description": "Moves the cursor to a specified column position in PRINT statements." }, { "title": "TAN() - Tangent Function", "uri": "msxdocs://basic_wiki/TAN()", "description": "Returns the tangent of an angle expressed in radians." }, { "title": "TIME - System Time Variable", "uri": "msxdocs://basic_wiki/TIME", "description": "System variable that holds the current time in seconds since midnight." }, { "title": "TROFF - Trace Off", "uri": "msxdocs://basic_wiki/TROFF", "description": "Turns off program trace mode that displays line numbers during execution." }, { "title": "TRON - Trace On", "uri": "msxdocs://basic_wiki/TRON", "description": "Turns on program trace mode that displays line numbers as they execute." }, { "title": "USR() - User Function Call", "uri": "msxdocs://basic_wiki/USR()", "description": "Calls a machine language routine and returns a value." }, { "title": "VAL() - Value Function", "uri": "msxdocs://basic_wiki/VAL()", "description": "Converts a string representation of a number to its numeric value." }, { "title": "VARPTR() - Variable Pointer Function", "uri": "msxdocs://basic_wiki/VARPTR()", "description": "Returns the memory address where a variable is stored." }, { "title": "VDP() - Video Display Processor Function", "uri": "msxdocs://basic_wiki/VDP()", "description": "Reads from VDP (Video Display Processor) status and control registers." }, { "title": "VPEEK() - Video Memory Peek Function", "uri": "msxdocs://basic_wiki/VPEEK()", "description": "Returns a byte value from Video RAM (VRAM) at specified address." }, { "title": "VPOKE - Video Memory Poke Command", "uri": "msxdocs://basic_wiki/VPOKE", "description": "Stores a byte value in Video RAM (VRAM) at specified address." }, { "title": "WAIT - Wait Command", "uri": "msxdocs://basic_wiki/WAIT", "description": "Suspends program execution until a specified I/O port condition is met." }, { "title": "WIDTH - Set Screen Width", "uri": "msxdocs://basic_wiki/WIDTH", "description": "Sets the character width of the screen display and printer output." }, { "title": "XOR - Logical XOR Operator", "uri": "msxdocs://basic_wiki/XOR", "description": "Performs logical exclusive OR operation between two expressions." } ] }