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Difference between revisions of "BASIC:BASIC"

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

Revision as of 13:30, 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

Extended Color BASIC (ECB)

Disk Extended Color BASIC (DECB)

Super Extended Color BASIC (SECB)

KEYWORDS

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