MediaWiki:Sitenotice:
2025-12-29: I have restored the wiki to a backup from the end of November. Starting in September 2025, accesses went form the 800MB-1.2GB range per month to 26GB in September, 42GB in October, and 70GB in November with most accesses originating from China. As soon as I realized what was causing all the access problems in November, I shut it down (it had reached 36GB by then) behind a password/login screen. The database had gotten corrupted, and I tried a restore from just before the spike in access but that didn't work. Thus, end of November. I still have the other daily backups so if there were any important additions in December, let me know and maybe they can be recovered. - Allen H.

BASIC:BASIC: Difference between revisions

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! Module || Keyword || Description
! Module || Keyword || Description
|-
|-
| CB || [[BASIC:ABS]] || Get absolute value of a signed number
| CB || [[BASIC:BASIC:ABS|ABS]] || Get absolute value of a signed number
|-
|-
| CB || + || Addition operator
| CB || [[BASIC:+]] || Addition operator
|-
|-
| CB || [[AND]] || Boolean / Logical AND operator
| CB || [[BASIC:AND]] || Boolean / Logical AND operator
|-
|-
| CB || [[ASC]] || ASCII code of first letter of string
| CB || [[BASIC:ASC]] || ASCII code of first letter of string
|-
|-
| ECB || [[ATN]] || Returns arctangent in radians
| ECB || [[BASIC:ATN]] || Returns arctangent in radians
|-
|-
| SECB || [[ATTR]] || Set the display attributes of a high-resolution text screen  
| SECB || [[BASIC:ATTR]] || Set the display attributes of a high-resolution text screen  
|-
|-
| CB || [[AUDIO]] || Control the audio source
| CB || [[BASIC:AUDIO]] || Control the audio source
|-
|-
| DECB || [[BACKUP]] || Duplicates the contents of the disk in the source drive on the disk in the destination drive
| DECB || [[BASIC:BACKUP]] || Duplicates the contents of the disk in the source drive on the disk in the destination drive
|-
|-
| SECB || [[BRK]] || Jump to a line number when the BREAK key is pressed
| SECB || [[BASIC:BRK]] || Jump to a line number when the BREAK key is pressed
|-
|-
| SECB || [[BUTTON]] || Return if a Joystick Button is being pressed or not
| SECB || [[BASIC:BUTTON]] || Return if a Joystick Button is being pressed or not
|-
|-
| CB || [[CHR$]] || Convert number to Control, ASCII, or graphics code string
| CB || [[BASIC:CHR$]] || Convert number to Control, ASCII, or graphics code string
|-
|-
| ECB || [[CIRCLE]] || Draws a circle with center at point (x,y) radius r, specified color c and height/width ratio  
| ECB || [[BASIC:CIRCLE]] || Draws a circle with center at point (x,y) radius r, specified color c and height/width ratio  
|-
|-
| CB || [[CLEAR]] || Clear RAM for string space
| CB || [[BASIC:CLEAR]] || Clear RAM for string space
|-
|-
| CB || [[CLOAD]] || Cassette load
| CB || [[BASIC:CLOAD]] || Cassette load
|-
|-
| CB || [[CLOSE]] || Close files
| CB || [[BASIC:CLOSE]] || Close files
|-
|-
| CB || [[CLS]] || Clear screen
| CB || [[BASIC:CLS]] || Clear screen
|-
|-
| SECB || [[CMP]] || Set palette to composite defaults
| SECB || [[BASIC:CMP]] || Set palette to composite defaults
|-
|-
| ECB || [[COLOR]] || Sets foreground and background color
| ECB || [[BASIC:COLOR]] || Sets foreground and background color
|-
|-
| CB || [[CONT]] || Continue the program from a stop
| CB || [[BASIC:CONT]] || Continue the program from a stop
|-
|-
| DECB || [[COPY]] || Copies the contents of filename1 to filename2
| DECB || [[BASIC:COPY]] || Copies the contents of filename1 to filename2
|-
|-
| ECB || [[COS]] || Return cosine of an angle given in radians
| ECB || [[BASIC:COS]] || Return cosine of an angle given in radians
|-
|-
| CB || [[CSAVE]] || Cassette save
| CB || [[BASIC:CSAVE]] || Cassette save
|-
|-
| DECB || [[CVN]] || Convert a 5-byte coded string created by MKN$ back to the number it represents
| DECB || [[BASIC:CVN]] || Convert a 5-byte coded string created by MKN$ back to the number it represents
|-
|-
| CB || [[DATA]] || Store data within a program
| CB || [[BASIC:DATA]] || Store data within a program
|-
|-
| ECB || [[DEF]] || Defines numeric function
| ECB || [[BASIC:DEF]] || Defines numeric function
|-
|-
| ECB || [[DEL]] || Deletes program lines
| ECB || [[BASIC:DEL]] || Deletes program lines
|-
|-
| CB || [[DIM]] || Set aside memory for arrays
| CB || [[BASIC:DIM]] || Set aside memory for arrays
|-
|-
| DECB || [[DIR]] || Displays a directory of the disk in the drive you specify
| DECB || [[BASIC:DIR]] || Displays a directory of the disk in the drive you specify
|-
|-
| CB || / || Division operator
| CB || / || Division operator
|-
|-
| ECB || [[DLOAD]] || Loads BASIC program at specified baud
| ECB || [[BASIC:DLOAD]] || Loads BASIC program at specified baud
|-
|-
| DECB || [[DOS]] || With the OS-9 system diskette in drive 0, the DOS command boots the OS-9 operating system
| DECB || [[BASIC:DOS]] || With the OS-9 system diskette in drive 0, the DOS command boots the OS-9 operating system
|-
|-
| ECB || [[DRAW]] || Draws a line beginning at specified starting point of specified length and color
| ECB || [[BASIC:DRAW]] || Draws a line beginning at specified starting point of specified length and color
|-
|-
| DECB || [[DRIVE]] || Changes the default drive to the drive you specify
| DECB || [[BASIC:DRIVE]] || Changes the default drive to the drive you specify
|-
|-
| DECB || [[DSKI$]] || Inputs data from a particular sector with in a particular track on the disk in the drive you specify
| DECB || [[BASIC:DSKI$]] || Inputs data from a particular sector with in a particular track on the disk in the drive you specify
|-
|-
| DECB || [[DSKINI]] || Formats a disk in the drive you specify
| DECB || [[BASIC:DSKINI]] || Formats a disk in the drive you specify
|-
|-
| DECB || [[DSKO$]] || Writes string data on sector, track, and drive number you specify
| DECB || [[BASIC:DSKO$]] || Writes string data on sector, track, and drive number you specify
|-
|-
| ECB || [[EDIT]] || Allows editing of program line
| ECB || [[BASIC:EDIT]] || Allows editing of program line
|-
|-
| CB || [[END]] || The end of the program
| CB || [[BASIC:END]] || The end of the program
|-
|-
| CB || [[EOF]] || End of file
| CB || [[BASIC:EOF]] || End of file
|-
|-
| CB || [[ELSE]] || Alternate conditional statement
| CB || [[BASIC:ELSE]] || Alternate conditional statement
|-
|-
| CB || = || Equality operator
| CB || = || Equality operator
|-
|-
| SECB || [[ERLIN]] || Returns the BASIC line number where an error has occurred
| SECB || [[BASIC:ERLIN]] || Returns the BASIC line number where an error has occurred
|-
|-
| SECB || [[ERR]] || Jump to a line number when an error occurs
| SECB || [[BASIC:ERR]] || Jump to a line number when an error occurs
|-
|-
| SECB || [[ERRNO]] || Returns the BASIC error number for the error that has occurred
| SECB || [[BASIC:ERRNO]] || Returns the BASIC error number for the error that has occurred
|-
|-
| CB || [[EVAL]] || Evaluate a numeric expression
| CB || [[BASIC:EVAL]] || Evaluate a numeric expression
|-
|-
| CB || [[EXEC]] || EXECute code at address
| CB || [[BASIC:EXEC]] || EXECute code at address
|-
|-
| CB || [[EXP]] || Generates ?SN in Color BASIC, implemented in Extended Color BASIC
| CB || [[BASIC:EXP]] || Generates ?SN in Color BASIC, implemented in Extended Color BASIC
|-
|-
| ECB || [[EXP]] || Returns natural exponential of number
| ECB || [[BASIC:EXP]] || Returns natural exponential of number
|-
|-
| DECB || [[FIELD]] || Organizes the space within a direct access buffer into fields
| DECB || [[BASIC:FIELD]] || Organizes the space within a direct access buffer into fields
|-
|-
| DECB || [[FILES]] || Tell the computer the number of buffers to reserve in memory
| DECB || [[BASIC:FILES]] || Tell the computer the number of buffers to reserve in memory
|-
|-
| ECB || [[FIX]] || Returns truncated (whole number) value
| ECB || [[BASIC:FIX]] || Returns truncated (whole number) value
|-
|-
| CB || [[FOR]] || Start a loop
| CB || [[BASIC:FOR]] || Start a loop
|-
|-
| DECB || [[FREE]] || Returns to the number of free granules on the disk in the drive you specify
| DECB || [[BASIC:FREE]] || Returns to the number of free granules on the disk in the drive you specify
|-
|-
| ECB || [[GET]] || Reads the graphic contents of a rectangle into an array for future use by PUT
| ECB || [[BASIC:GET]] || Reads the graphic contents of a rectangle into an array for future use by PUT
|-
|-
| CB || [[GO]] || Jump to line number
| CB || [[BASIC:GO]] || Jump to line number
|-
|-
| CB || > || Greater Than operator
| CB || > || Greater Than operator
|-
|-
| SECB || [[HBUFF]] || Reserves an area in memory for high-resolution graphics
| SECB || [[BASIC:HBUFF]] || Reserves an area in memory for high-resolution graphics
|-
|-
| SECB || [[HCIRCLE]] || Draws a circle on the high-resolution graphics screen
| SECB || [[BASIC:HCIRCLE]] || Draws a circle on the high-resolution graphics screen
|-
|-
| SECB || [[HCLS]] || Clear the high-resolution graphics screen to a specified color
| SECB || [[BASIC:HCLS]] || Clear the high-resolution graphics screen to a specified color
|-
|-
| SECB || [[HCOLOR]] || Set foreground and background color on the high-resolution graphics screen
| SECB || [[BASIC:HCOLOR]] || Set foreground and background color on the high-resolution graphics screen
|-
|-
| SECB || [[HDRAW]] || Draws on the high-resolution screen from a command string
| SECB || [[BASIC:HDRAW]] || Draws on the high-resolution screen from a command string
|-
|-
| ECB || [[HEX$]] || Computes hexadecimal value
| ECB || [[BASIC:HEX$]] || Computes hexadecimal value
|-
|-
| SECB || [[HGET]] || Stores a rectangle from the high-resolution screen into a buffer
| SECB || [[BASIC:HGET]] || Stores a rectangle from the high-resolution screen into a buffer
|-
|-
| SECB || [[HLINE]] || Draws a line on the high-resolution graphics screen
| SECB || [[BASIC:HLINE]] || Draws a line on the high-resolution graphics screen
|-
|-
| SECB || [[HPAINT]] || Paints an area on the high-resolution graphics screen
| SECB || [[BASIC:HPAINT]] || Paints an area on the high-resolution graphics screen
|-
|-
| SECB || [[HPOINT]] || Returns information on point x,y from the high-resolution graphics screen
| SECB || [[BASIC:HPOINT]] || Returns information on point x,y from the high-resolution graphics screen
|-
|-
| SECB || [[HPRINT]] || Prints a message on the high-resolution graphics screen
| SECB || [[BASIC:HPRINT]] || Prints a message on the high-resolution graphics screen
|-
|-
| SECB || [[HPUT]] || Copies graphics from a buffer to a rectangle on the high-resolution graphics screen
| SECB || [[BASIC:HPUT]] || Copies graphics from a buffer to a rectangle on the high-resolution graphics screen
|-
|-
| SECB || [[HRESET]] || Resets a point on the high-resolution graphics screen to the background color
| SECB || [[BASIC:HRESET]] || Resets a point on the high-resolution graphics screen to the background color
|-
|-
| SECB || [[HSCREEN]] || Select and clear high-resolution graphics screen
| SECB || [[BASIC:HSCREEN]] || Select and clear high-resolution graphics screen
|-
|-
| SECB || [[HSET]] || Set point x,y on the high-resolution graphics screen to color c
| SECB || [[BASIC:HSET]] || Set point x,y on the high-resolution graphics screen to color c
|-
|-
| SECB || [[HSTAT]] || Returns information regarding the high-resolution text screen cursor
| SECB || [[BASIC:HSTAT]] || Returns information regarding the high-resolution text screen cursor
|-
|-
| CB || [[IF]] || Start a conditional check
| CB || [[BASIC:IF]] || Start a conditional check
|-
|-
| CB || [[INKEY$]] || Get a key
| CB || [[BASIC:INKEY$]] || Get a key
|-
|-
| CB || [[INPUT]] || Read a line of text at a time
| CB || [[BASIC:INPUT]] || Read a line of text at a time
|-
|-
| ECB || [[INSTR]] || Searches for the first occurrence of target string
| ECB || [[BASIC:INSTR]] || Searches for the first occurrence of target string
|-
|-
| CB || [[INT]] || Convert a number to an integer
| CB || [[BASIC:INT]] || Convert a number to an integer
|-
|-
| CB || [[JOYSTK]] || Read and report joysticks
| CB || [[BASIC:JOYSTK]] || Read and report joysticks
|-
|-
| DECB || [[KILL]] || Deletes the filename you specify from the disk directory
| DECB || [[BASIC:KILL]] || Deletes the filename you specify from the disk directory
|-
|-
| CB || [[LEFT$]] || Left part of a string
| CB || [[BASIC:LEFT$]] || Left part of a string
|-
|-
| CB || [[LEN]] || Length of a string
| CB || [[BASIC:LEN]] || Length of a string
|-
|-
| CB || < || Less Than operator  
| CB || < || Less Than operator  
|-
|-
| CB || [[LET]] || Assign a variable
| CB || [[BASIC:LET]] || Assign a variable
|-
|-
| ECB || [[LINE]] || Draw a line from (x1,y1) to (x2,y2)
| ECB || [[BASIC:LINE]] || Draw a line from (x1,y1) to (x2,y2)
|-
|-
| CB || [[LIST]] || List program to screen
| CB || [[BASIC:LIST]] || List program to screen
|-
|-
| CB || [[LLIST]] || List program to printer
| CB || [[BASIC:LLIST]] || List program to printer
|-
|-
| DECB || [[LOAD]] || Loads the specified program file into memory from disk
| DECB || [[BASIC:LOAD]] || Loads the specified program file into memory from disk
|-
|-
| SECB || [[LOCATE]] || Move the high-resolution text screen cursor to position x,y
| SECB || [[BASIC:LOCATE]] || Move the high-resolution text screen cursor to position x,y
|-
|-
| DECB || [[LOC]] || Returns the current record number of the buffer you specify
| DECB || [[BASIC:LOC]] || Returns the current record number of the buffer you specify
|-
|-
| DECB || [[LOF]] || Returns the highest-numbered record of the buffer you specify
| DECB || [[BASIC:LOF]] || Returns the highest-numbered record of the buffer you specify
|-
|-
| ECB || [[LOG]] || Returns natural logarithm
| ECB || [[BASIC:LOG]] || Returns natural logarithm
|-
|-
| SECB || [[LPEEK]] || Return the contents of a virtual memory location $00000 - $7FFFF
| SECB || [[BASIC:LPEEK]] || Return the contents of a virtual memory location $00000 - $7FFFF
|-
|-
| SECB || [[LPOKE]] || Stores a value in a virtual memory location $00000 - $7FFFF
| SECB || [[BASIC:LPOKE]] || Stores a value in a virtual memory location $00000 - $7FFFF
|-
|-
| DECB || [[LSET]] || Left-justifies the data within the field you specify
| DECB || [[BASIC:LSET]] || Left-justifies the data within the field you specify
|-
|-
| CB || [[MEM]] || Free memory
| CB || [[BASIC:MEM]] || Free memory
|-
|-
| DECB || [[MERGE]] || Loads the specified program file from disk and merges it with the program that exists in memory
| DECB || [[BASIC:MERGE]] || Loads the specified program file from disk and merges it with the program that exists in memory
|-
|-
| CB || [[MID$]] || Middle of a string
| CB || [[BASIC:MID$]] || Middle of a string
|-
|-
| DECB || [[MKN$]] || Convert a specified number into a 5-byte coded string for storage in a formatted disk file
| DECB || [[BASIC:MKN$]] || Convert a specified number into a 5-byte coded string for storage in a formatted disk file
|-
|-
| CB || [[MOTOR]] || Tape drive motor control
| CB || [[BASIC:MOTOR]] || Tape drive motor control
|-
|-
| CB || * || Multiplication operator
| CB || * || Multiplication operator
|-
|-
| CB || [[NEW]] || Initialize the BASIC memory map
| CB || [[BASIC:NEW]] || Initialize the BASIC memory map
|-
|-
| CB || [[NEXT]] || End of a loop
| CB || [[BASIC:NEXT]] || End of a loop
|-
|-
| CB || [[NOT]] || Boolean / Logical negation
| CB || [[BASIC:NOT]] || Boolean / Logical negation
|-
|-
| CB || [[OFF]] || AUDIO and MOTOR control token
| CB || [[BASIC:OFF]] || AUDIO and MOTOR control token
|-
|-
| CB || [[ON]] || Start of multi-way branch
| CB || [[BASIC:ON]] || Start of multi-way branch
|-
|-
| CB || [[OPEN]] || Open a file
| CB || [[BASIC:OPEN]] || Open a file
|-
|-
| CB || [[OR]] || Boolean / Logical OR operator
| CB || [[BASIC:OR]] || Boolean / Logical OR operator
|-
|-
| ECB || [[PAINT]] || Paints graphic screen starting at a point (x,y) withh specified color c stopping at border b
| ECB || [[BASIC:PAINT]] || Paints graphic screen starting at a point (x,y) withh specified color c stopping at border b
|-
|-
| SECB || [[PALETTE]] || Store a color code into a palette register, or reset palette for CMP or RGB defaults
| SECB || [[BASIC:PALETTE]] || Store a color code into a palette register, or reset palette for CMP or RGB defaults
|-
|-
| ECB || [[PCLEAR]] || Reserves b number of 1.5K graphics memory pages
| ECB || [[BASIC:PCLEAR]] || Reserves b number of 1.5K graphics memory pages
|-
|-
| ECB || [[PCLS]] || Clears screen with specified color c
| ECB || [[BASIC:PCLS]] || Clears screen with specified color c
|-
|-
| ECB || [[PCOPY]] || Copy graphics from source page to destination page
| ECB || [[BASIC:PCOPY]] || Copy graphics from source page to destination page
|-
|-
| CB || [[PEEK]] || Read a value from a memory address
| CB || [[BASIC:PEEK]] || Read a value from a memory address
|-
|-
| ECB || [[PLAY]] || Plays music of specific note, octave, note-length, tempo, pause
| ECB || [[BASIC:PLAY]] || Plays music of specific note, octave, note-length, tempo, pause
|-
|-
| ECB || [[PMODE]] || Selections resolution and first memory page
| ECB || [[BASIC:PMODE]] || Selections resolution and first memory page
|-
|-
| CB || [[POINT]] || Check color of a semigraphics pixel
| CB || [[BASIC:POINT]] || Check color of a semigraphics pixel
|-
|-
| CB || [[POKE]] || Write a value to a memory address
| CB || [[BASIC:POKE]] || Write a value to a memory address
|-
|-
| ECB || [[POS]] || Returns current print position
| ECB || [[BASIC:POS]] || Returns current print position
|-
|-
| ECB || [[PPOINT]] || Tests whether specified graphics cell is on or off
| ECB || [[BASIC:PPOINT]] || Tests whether specified graphics cell is on or off
|-
|-
| ECB || [[PRESET]] || Reset a point to background color
| ECB || [[BASIC:PRESET]] || Reset a point to background color
|-
|-
| CB || [[PRINT]] || Write to the screen
| CB || [[BASIC:PRINT]] || Write to the screen
|-
|-
| ECB || [[PSET]] || Sets a specified point (x,y) to specified color c
| ECB || [[BASIC:PSET]] || Sets a specified point (x,y) to specified color c
|-
|-
| ECB || [[PUT]] || Stores graphics from source into start/end rectangle on the screen
| ECB || [[BASIC:PUT]] || Stores graphics from source into start/end rectangle on the screen
|-
|-
| CB || [[READ]] || Read a piece of data
| CB || [[BASIC:READ]] || Read a piece of data
|-
|-
| CB || [[REM]] || Comments or remarks - FIXME Else uses this too?
| CB || [[BASIC:REM]] || Comments or remarks - FIXME Else uses this too?
|-
|-
| DECB || [[RENAME]] || Renames a disk file
| DECB || [[BASIC:RENAME]] || Renames a disk file
|-
|-
| ECB || [[RENUM]] || Allows program line renumbering
| ECB || [[BASIC:RENUM]] || Allows program line renumbering
|-
|-
| CB || [[RESET]] || Clear a semigraphics pixel
| CB || [[BASIC:RESET]] || Clear a semigraphics pixel
|-
|-
| CB || [[RESTORE]] || Start back at the first DATA item
| CB || [[BASIC:RESTORE]] || Start back at the first DATA item
|-
|-
| CB || [[RETURN]] || Return from a subroutine
| CB || [[BASIC:RETURN]] || Return from a subroutine
|-
|-
| SECB || [[RGB]] || Set palette to RGB defaults
| SECB || [[BASIC:RGB]] || Set palette to RGB defaults
|-
|-
| CB || [[RIGHT$]] || Right part of a string
| CB || [[BASIC:RIGHT$]] || Right part of a string
|-
|-
| CB || [[RND]] || Pseudo-random number generator
| CB || [[BASIC:RND]] || Pseudo-random number generator
|-
|-
| DECB || [[RSET]] || Right-justifies the data within the field you specify
| DECB || [[BASIC:RSET]] || Right-justifies the data within the field you specify
|-
|-
| CB || [[RUN]] || Start the program running
| CB || [[BASIC:RUN]] || Start the program running
|-
|-
| DECB || [[SAVE]] || Saves filename on disk
| DECB || [[BASIC:SAVE]] || Saves filename on disk
|-
|-
| ECB || [[SCREEN]] || Selects either graphics (1) or text (0) screen and color-set (0 or 1)
| ECB || [[BASIC:SCREEN]] || Selects either graphics (1) or text (0) screen and color-set (0 or 1)
|-
|-
| CB || [[SET]] || Draw a semigraphics pixel
| CB || [[BASIC:SET]] || Draw a semigraphics pixel
|-
|-
| CB || [[SGN]] || Get the sign of a number positive or negative
| CB || [[BASIC:SGN]] || Get the sign of a number positive or negative
|-
|-
| CB || [[SIN]] || Sine of an angle
| CB || [[BASIC:SIN]] || Sine of an angle
|-
|-
| CB || [[SKIPF]] || Skip tape file
| CB || [[BASIC:SKIPF]] || Skip tape file
|-
|-
| CB || [[SOUND]] || Beep the speaker
| CB || [[BASIC:SOUND]] || Beep the speaker
|-
|-
| ECB || [[SQR]] || Returns the square root of a number
| ECB || [[BASIC:SQR]] || Returns the square root of a number
|-
|-
| CB || [[STEP]] || FOR loop control
| CB || [[BASIC:STEP]] || FOR loop control
|-
|-
| CB || [[STOP]] || Stop the program at the current line
| CB || [[BASIC:STOP]] || Stop the program at the current line
|-
|-
| CB || [[STR$]] || Convert a number to a string
| CB || [[BASIC:STR$]] || Convert a number to a string
|-
|-
| ECB || [[STRING]] || Returns a string of characters of specified length
| ECB || [[BASIC:STRING]] || Returns a string of characters of specified length
|-
|-
| CB || [[SUB]] || Completion token for GOSUB
| CB || [[BASIC:SUB]] || Completion token for GOSUB
|-
|-
| CB || - || Subtraction operator
| CB || - || Subtraction operator
|-
|-
| CB || [[TAB]] || Tabulation
| CB || [[BASIC:TAB]] || Tabulation
|-
|-
| ECB || [[TAN]] || Returns tangent of angle given in radians
| ECB || [[BASIC:TAN]] || Returns tangent of angle given in radians
|-
|-
| CB || [[THEN]] || Completion token for IF
| CB || [[BASIC:THEN]] || Completion token for IF
|-
|-
| ECB || [[TIMER]] || Returns contents or allows setting of timer
| ECB || [[BASIC:TIMER]] || Returns contents or allows setting of timer
|-
|-
| CB || [[TO]] || Token for TO in GO TO
| CB || [[BASIC:TO]] || Token for TO in GO TO
|-
|-
| ECB || [[TROFF]] || Turns off program tracer
| ECB || [[BASIC:TROFF]] || Turns off program tracer
|-
|-
| ECB || [[TRON]] || Turns on program tracer
| ECB || [[BASIC:TRON]] || Turns on program tracer
|-
|-
| DECB || [[UNLOAD]] || Close any open files on the disk in the drive you specify
| DECB || [[BASIC:UNLOAD]] || Close any open files on the disk in the drive you specify
|-
|-
| CB || [[USR]] || User defined function
| CB || [[BASIC:USR]] || User defined function
|-
|-
| CB || [[VAL]] || Convert a string to a number
| CB || [[BASIC:VAL]] || Convert a string to a number
|-
|-
| ECB || [[VARPTR]] || Returns address of pointer to the specified variable
| ECB || [[BASIC:VARPTR]] || Returns address of pointer to the specified variable
|-
|-
| DECB || [[VERIFY]] || Turns the verify function on or off  
| DECB || [[BASIC:VERIFY]] || Turns the verify function on or off  
|-
|-
| SECB || [[WIDTH]] || Set the text screen to a resolution in character width
| SECB || [[BASIC:WIDTH]] || Set the text screen to a resolution in character width
|-
|-
| DECB || [[WRITE]] || Writes the data to the buffer you specify
| DECB || [[BASIC:WRITE]] || Writes the data to the buffer you specify
|}
|}

Revision as of 20:22, 9 April 2020

BASIC

Tandy Color Computers contain a modular interpreter which understands a superset of the Beginner's All-purpose Symbolic Instruction Code (BASIC) programming language.

There are up to four core modules available in Read-Only Memory (ROM) that detect and link to each other when combinations of these ROMs exist in a Color Computer.

MODULES

Color BASIC - the core module present in all models of Color Computer

Extended Color BASIC (ECB) - a graphics and sound package which was optional in the Color Computer 1 and 2.

Disk Extended Color BASIC (DECB) - Disk commands present when a disk controller cartridge is plugged in

Super Extended Color BASIC (SECB) - Present in the Color Computer 3 only and includes Color BASIC and Extended Color BASIC in lower memory - links to Disk BASIC ROM if a cartridge is present.

KEYWORDS

BASIC Keywords (sortable)
Module Keyword Description
CB ABS Get absolute value of a signed number
CB BASIC:+ Addition operator
CB BASIC:AND Boolean / Logical AND operator
CB BASIC:ASC ASCII code of first letter of string
ECB BASIC:ATN Returns arctangent in radians
SECB BASIC:ATTR Set the display attributes of a high-resolution text screen
CB BASIC:AUDIO Control the audio source
DECB BASIC:BACKUP Duplicates the contents of the disk in the source drive on the disk in the destination drive
SECB BASIC:BRK Jump to a line number when the BREAK key is pressed
SECB BASIC:BUTTON Return if a Joystick Button is being pressed or not
CB BASIC:CHR$ Convert number to Control, ASCII, or graphics code string
ECB BASIC:CIRCLE Draws a circle with center at point (x,y) radius r, specified color c and height/width ratio
CB BASIC:CLEAR Clear RAM for string space
CB BASIC:CLOAD Cassette load
CB BASIC:CLOSE Close files
CB BASIC:CLS Clear screen
SECB BASIC:CMP Set palette to composite defaults
ECB BASIC:COLOR Sets foreground and background color
CB BASIC:CONT Continue the program from a stop
DECB BASIC:COPY Copies the contents of filename1 to filename2
ECB BASIC:COS Return cosine of an angle given in radians
CB BASIC:CSAVE Cassette save
DECB BASIC:CVN Convert a 5-byte coded string created by MKN$ back to the number it represents
CB BASIC:DATA Store data within a program
ECB BASIC:DEF Defines numeric function
ECB BASIC:DEL Deletes program lines
CB BASIC:DIM Set aside memory for arrays
DECB BASIC:DIR Displays a directory of the disk in the drive you specify
CB / Division operator
ECB BASIC:DLOAD Loads BASIC program at specified baud
DECB BASIC:DOS With the OS-9 system diskette in drive 0, the DOS command boots the OS-9 operating system
ECB BASIC:DRAW Draws a line beginning at specified starting point of specified length and color
DECB BASIC:DRIVE Changes the default drive to the drive you specify
DECB BASIC:DSKI$ Inputs data from a particular sector with in a particular track on the disk in the drive you specify
DECB BASIC:DSKINI Formats a disk in the drive you specify
DECB BASIC:DSKO$ Writes string data on sector, track, and drive number you specify
ECB BASIC:EDIT Allows editing of program line
CB BASIC:END The end of the program
CB BASIC:EOF End of file
CB BASIC:ELSE Alternate conditional statement
CB = Equality operator
SECB BASIC:ERLIN Returns the BASIC line number where an error has occurred
SECB BASIC:ERR Jump to a line number when an error occurs
SECB BASIC:ERRNO Returns the BASIC error number for the error that has occurred
CB BASIC:EVAL Evaluate a numeric expression
CB BASIC:EXEC EXECute code at address
CB BASIC:EXP Generates ?SN in Color BASIC, implemented in Extended Color BASIC
ECB BASIC:EXP Returns natural exponential of number
DECB BASIC:FIELD Organizes the space within a direct access buffer into fields
DECB BASIC:FILES Tell the computer the number of buffers to reserve in memory
ECB BASIC:FIX Returns truncated (whole number) value
CB BASIC:FOR Start a loop
DECB BASIC:FREE Returns to the number of free granules on the disk in the drive you specify
ECB BASIC:GET Reads the graphic contents of a rectangle into an array for future use by PUT
CB BASIC:GO Jump to line number
CB > Greater Than operator
SECB BASIC:HBUFF Reserves an area in memory for high-resolution graphics
SECB BASIC:HCIRCLE Draws a circle on the high-resolution graphics screen
SECB BASIC:HCLS Clear the high-resolution graphics screen to a specified color
SECB BASIC:HCOLOR Set foreground and background color on the high-resolution graphics screen
SECB BASIC:HDRAW Draws on the high-resolution screen from a command string
ECB BASIC:HEX$ Computes hexadecimal value
SECB BASIC:HGET Stores a rectangle from the high-resolution screen into a buffer
SECB BASIC:HLINE Draws a line on the high-resolution graphics screen
SECB BASIC:HPAINT Paints an area on the high-resolution graphics screen
SECB BASIC:HPOINT Returns information on point x,y from the high-resolution graphics screen
SECB BASIC:HPRINT Prints a message on the high-resolution graphics screen
SECB BASIC:HPUT Copies graphics from a buffer to a rectangle on the high-resolution graphics screen
SECB BASIC:HRESET Resets a point on the high-resolution graphics screen to the background color
SECB BASIC:HSCREEN Select and clear high-resolution graphics screen
SECB BASIC:HSET Set point x,y on the high-resolution graphics screen to color c
SECB BASIC:HSTAT Returns information regarding the high-resolution text screen cursor
CB BASIC:IF Start a conditional check
CB BASIC:INKEY$ Get a key
CB BASIC:INPUT Read a line of text at a time
ECB BASIC:INSTR Searches for the first occurrence of target string
CB BASIC:INT Convert a number to an integer
CB BASIC:JOYSTK Read and report joysticks
DECB BASIC:KILL Deletes the filename you specify from the disk directory
CB BASIC:LEFT$ Left part of a string
CB BASIC:LEN Length of a string
CB < Less Than operator
CB BASIC:LET Assign a variable
ECB BASIC:LINE Draw a line from (x1,y1) to (x2,y2)
CB BASIC:LIST List program to screen
CB BASIC:LLIST List program to printer
DECB BASIC:LOAD Loads the specified program file into memory from disk
SECB BASIC:LOCATE Move the high-resolution text screen cursor to position x,y
DECB BASIC:LOC Returns the current record number of the buffer you specify
DECB BASIC:LOF Returns the highest-numbered record of the buffer you specify
ECB BASIC:LOG Returns natural logarithm
SECB BASIC:LPEEK Return the contents of a virtual memory location $00000 - $7FFFF
SECB BASIC:LPOKE Stores a value in a virtual memory location $00000 - $7FFFF
DECB BASIC:LSET Left-justifies the data within the field you specify
CB BASIC:MEM Free memory
DECB BASIC:MERGE Loads the specified program file from disk and merges it with the program that exists in memory
CB BASIC:MID$ Middle of a string
DECB BASIC:MKN$ Convert a specified number into a 5-byte coded string for storage in a formatted disk file
CB BASIC:MOTOR Tape drive motor control
CB * Multiplication operator
CB BASIC:NEW Initialize the BASIC memory map
CB BASIC:NEXT End of a loop
CB BASIC:NOT Boolean / Logical negation
CB BASIC:OFF AUDIO and MOTOR control token
CB BASIC:ON Start of multi-way branch
CB BASIC:OPEN Open a file
CB BASIC:OR Boolean / Logical OR operator
ECB BASIC:PAINT Paints graphic screen starting at a point (x,y) withh specified color c stopping at border b
SECB BASIC:PALETTE Store a color code into a palette register, or reset palette for CMP or RGB defaults
ECB BASIC:PCLEAR Reserves b number of 1.5K graphics memory pages
ECB BASIC:PCLS Clears screen with specified color c
ECB BASIC:PCOPY Copy graphics from source page to destination page
CB BASIC:PEEK Read a value from a memory address
ECB BASIC:PLAY Plays music of specific note, octave, note-length, tempo, pause
ECB BASIC:PMODE Selections resolution and first memory page
CB BASIC:POINT Check color of a semigraphics pixel
CB BASIC:POKE Write a value to a memory address
ECB BASIC:POS Returns current print position
ECB BASIC:PPOINT Tests whether specified graphics cell is on or off
ECB BASIC:PRESET Reset a point to background color
CB BASIC:PRINT Write to the screen
ECB BASIC:PSET Sets a specified point (x,y) to specified color c
ECB BASIC:PUT Stores graphics from source into start/end rectangle on the screen
CB BASIC:READ Read a piece of data
CB BASIC:REM Comments or remarks - FIXME Else uses this too?
DECB BASIC:RENAME Renames a disk file
ECB BASIC:RENUM Allows program line renumbering
CB BASIC:RESET Clear a semigraphics pixel
CB BASIC:RESTORE Start back at the first DATA item
CB BASIC:RETURN Return from a subroutine
SECB BASIC:RGB Set palette to RGB defaults
CB BASIC:RIGHT$ Right part of a string
CB BASIC:RND Pseudo-random number generator
DECB BASIC:RSET Right-justifies the data within the field you specify
CB BASIC:RUN Start the program running
DECB BASIC:SAVE Saves filename on disk
ECB BASIC:SCREEN Selects either graphics (1) or text (0) screen and color-set (0 or 1)
CB BASIC:SET Draw a semigraphics pixel
CB BASIC:SGN Get the sign of a number positive or negative
CB BASIC:SIN Sine of an angle
CB BASIC:SKIPF Skip tape file
CB BASIC:SOUND Beep the speaker
ECB BASIC:SQR Returns the square root of a number
CB BASIC:STEP FOR loop control
CB BASIC:STOP Stop the program at the current line
CB BASIC:STR$ Convert a number to a string
ECB BASIC:STRING Returns a string of characters of specified length
CB BASIC:SUB Completion token for GOSUB
CB - Subtraction operator
CB BASIC:TAB Tabulation
ECB BASIC:TAN Returns tangent of angle given in radians
CB BASIC:THEN Completion token for IF
ECB BASIC:TIMER Returns contents or allows setting of timer
CB BASIC:TO Token for TO in GO TO
ECB BASIC:TROFF Turns off program tracer
ECB BASIC:TRON Turns on program tracer
DECB BASIC:UNLOAD Close any open files on the disk in the drive you specify
CB BASIC:USR User defined function
CB BASIC:VAL Convert a string to a number
ECB BASIC:VARPTR Returns address of pointer to the specified variable
DECB BASIC:VERIFY Turns the verify function on or off
SECB BASIC:WIDTH Set the text screen to a resolution in character width
DECB BASIC:WRITE Writes the data to the buffer you specify
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