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diff --git a/DOCS/PDP-11.txt b/DOCS/PDP-11.txt new file mode 100644 index 0000000..8cf2882 --- /dev/null +++ b/DOCS/PDP-11.txt @@ -0,0 +1,836 @@ +============================================================
+ GENERAL
+============================================================
+
+
+OPTION VERSION "PDP-11"
+REM INTERNAL ID: D70
+REM DESCRIPTION: DEC PDP-11 BASIC
+REM REFERENCE: PDP-11 BASIC Programming Manual
+REM by Digital Equipement Corporation
+REM (c) 1970, Digital Equipement Corporation
+REM http://bitsavers.trailing-edge.com/pdf/dec/pdp11/basic/
+REM DEC-11-AJPB-D_PDP-11_BASIC_Programming_Manual_Dec70.pdf
+REM
+OPTION STRICT OFF
+OPTION ANGLE RADIANS
+OPTION BUGS ON
+OPTION LABELS OFF
+OPTION COMPARE BINARY
+OPTION COVERAGE OFF
+OPTION TRACE OFF
+OPTION ERROR GOTO
+OPTION IMPLICIT
+OPTION BASE 0
+OPTION RECLEN 128
+OPTION DATE ""
+OPTION TIME ""
+OPTION PUNCT STRING "$"
+OPTION PUNCT DOUBLE "#"
+OPTION PUNCT SINGLE "!"
+OPTION PUNCT CURRENCY " "
+OPTION PUNCT LONG "&"
+OPTION PUNCT INTEGER "%"
+OPTION PUNCT BYTE " "
+OPTION PUNCT QUOTE """
+OPTION PUNCT COMMENT " "
+OPTION PUNCT STATEMENT ":"
+OPTION PUNCT PRINT " "
+OPTION PUNCT INPUT " "
+OPTION PUNCT IMAGE " "
+OPTION PUNCT LPAREN "("
+OPTION PUNCT RPAREN ")"
+OPTION PUNCT FILENUM "#"
+OPTION PUNCT AT " "
+OPTION USING DIGIT "#"
+OPTION USING COMMA ","
+OPTION USING PERIOD "."
+OPTION USING PLUS "+"
+OPTION USING MINUS "-"
+OPTION USING EXRAD "^"
+OPTION USING DOLLAR "$"
+OPTION USING FILLER "*"
+OPTION USING LITERAL "_"
+OPTION USING FIRST "!"
+OPTION USING ALL "&"
+OPTION USING LENGTH "\"
+
+
+============================================================
+ COMMANDS
+============================================================
+
+
+------------------------------------------------------------
+ SYNTAX: BYE
+DESCRIPTION: Exits to the operating system.
+------------------------------------------------------------
+ SYNTAX: DATA constant [, ...]
+DESCRIPTION: Stores numeric and string constants to be
+ accessed by READ.
+------------------------------------------------------------
+ SYNTAX: DEF FNname[( arg [,...] )] = value
+DESCRIPTION: Defines a single-line function. Single-line
+ functions require an equal sign.
+------------------------------------------------------------
+ SYNTAX: DEF FNname[( arg [,...] )]
+DESCRIPTION: Defines a multiline function. Multi-line DEF
+ functions do not have an equal sign and must
+ end with FNEND.
+------------------------------------------------------------
+ SYNTAX: DELETE line [- line]
+DESCRIPTION: Deletes program lines indicated by the
+ argument(s). All program lines have a
+ number, which is visible with the LIST
+ command. If line numbers are not provided,
+ they are assigned beginning with 1. Deleting
+ a non-existing line does not cause an error.
+------------------------------------------------------------
+ SYNTAX: DIM [# filenum,] variable([ lower TO ] upper)
+DESCRIPTION: Declares variables and specifies the
+ dimensions of array variables. For array
+ variables, if the lower bound is not
+ provided, then the OPTION BASE value is used.
+ If filenum is provided, then the variable is
+ virtual.
+------------------------------------------------------------
+ SYNTAX: ELSE
+DESCRIPTION: Introduces a default condition in a multi-line
+ IF statement.
+------------------------------------------------------------
+ SYNTAX: ELSEIF
+DESCRIPTION: Introduces a secondary condition in a
+ multi-line IF statement.
+------------------------------------------------------------
+ SYNTAX: END
+DESCRIPTION: Terminates program execution. If the BASIC
+ program was executed from the operating
+ system level, then control returns to the
+ operating system, oterwise control reuturns
+ to the BASIC prompt.
+------------------------------------------------------------
+ SYNTAX: END IF
+DESCRIPTION: Specifies the last line of a multi-line IF
+ definition.
+------------------------------------------------------------
+ SYNTAX: FNEND
+DESCRIPTION: Specifies the last line of a multi-line DEF
+ function.
+------------------------------------------------------------
+ SYNTAX: FOR variable = start TO finish [STEP
+ increment]
+DESCRIPTION: Top of a FOR - NEXT structure. The loop will
+ continue a fixed number of times, which is
+ determined by the values of start, finish,
+ and increment.
+------------------------------------------------------------
+ SYNTAX: GO
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: GO SUB line
+DESCRIPTION: Initiates a subroutine call to the line
+ specified. The subroutine must end with
+ RETURN. The line may be a number or a label.
+------------------------------------------------------------
+ SYNTAX: GO TO line
+DESCRIPTION: Branches program execution to the specified
+ line. The line may be a number or a label.
+------------------------------------------------------------
+ SYNTAX: GOSUB line
+DESCRIPTION: Initiates a subroutine call to the line
+ specified. The subroutine must end with
+ RETURN. The line may be a number or a label.
+------------------------------------------------------------
+ SYNTAX: GOTO line
+DESCRIPTION: Branches program execution to the specified
+ line. The line may be a number or a label.
+------------------------------------------------------------
+ SYNTAX: IF value THEN line1 [ELSE line2]
+DESCRIPTION: Single line standard IF command. If the value
+ is non-zero, then branh to line1. If the
+ value is zero and ELSE is provided, then
+ branch to line2. Otherwise continue to the
+ next line. LABELS are not allowed.
+------------------------------------------------------------
+ SYNTAX: IF value THEN
+DESCRIPTION: Top of a multi-line IF - END IF structure. If
+ the value is non-zero, then the program lines
+ upto the next ELSE or ELSE IF command are
+ executed, otherwise the program branches to
+ the next ELSE or ELSE IF command.
+------------------------------------------------------------
+ SYNTAX: INPUT "prompt string" , variable [, ...]
+DESCRIPTION: Reads input from the terminal after displaying
+ a prompt.
+------------------------------------------------------------
+ SYNTAX: INPUT # filenum , variable [, ...]s
+DESCRIPTION: Reads input from the file specified by
+ filenum.
+------------------------------------------------------------
+ SYNTAX: INPUT variable [, ...]
+DESCRIPTION: Reads input from the terminal.
+------------------------------------------------------------
+ SYNTAX: [LET] variable [, ...] = value
+DESCRIPTION: Assigns the value to the variable. The LET
+ keyword is optional.
+------------------------------------------------------------
+ SYNTAX: LIST line1 [- line2]
+DESCRIPTION: Lists BASIC program lines from line1 to line2
+ to the console on stdout.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER
+DESCRIPTION: This command is reserved for use by the
+ Bywater BASIC maintainer. It is not for the
+ BASIC programmer.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER CMDS
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER CMDS HTML
+DESCRIPTION: Dump COMMAND vs VERSION as HTML table
+------------------------------------------------------------
+ SYNTAX: MAINTAINER CMDS ID
+DESCRIPTION: Dump COMMAND #define.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER CMDS MANUAL
+DESCRIPTION: Dump COMMAND manual.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER CMDS_SWITCH
+DESCRIPTION: Dump COMMAND switch.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER CMDS TABLE
+DESCRIPTION: Dump COMMAND table.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER DEBUG
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER DEBUG OFF
+DESCRIPTION: Disable degug tracing.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER DEBUG ON
+DESCRIPTION: Enable degug tracing.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER FNCS
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER FNCS HTML
+DESCRIPTION: Dump FUNCTION vs VERSION as HTML table.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER FNCS ID
+DESCRIPTION: Dump FUNCTION #define.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER FNCS MANUAL
+DESCRIPTION: Dump FUNCTION manual.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER FNCS SWITCH
+DESCRIPTION: Dump FUNCTION switch.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER FNCS TABLE
+DESCRIPTION: Dump FUNCTION table.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER MANUAL
+DESCRIPTION: Dump manual for the currently selected OPTION
+ VERSION.
+------------------------------------------------------------
+ SYNTAX: MAINTAINER STACK
+DESCRIPTION: Dump the BASIC stack.
+------------------------------------------------------------
+ SYNTAX: NEW
+DESCRIPTION: Deletes the program in memory and clears all
+ variables.
+------------------------------------------------------------
+ SYNTAX: NEXT [variable]
+DESCRIPTION: The bottom line of a FOR - NEXT structure.
+------------------------------------------------------------
+ SYNTAX: OLD [filename$]
+DESCRIPTION: Loads an ASCII BASIC program into memory.
+------------------------------------------------------------
+ SYNTAX: OPTION
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION ANGLE
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION ANGLE DEGREES
+DESCRIPTION: Configures these math functions to accept and
+ return angles in degrees: ACOS, ACS, ANGLE,
+ ARCSIN, ASIN, ASN, ARCTAN, ATN, ATAN, COS,
+ COT, CSC, SEC, SIN and TAN.
+------------------------------------------------------------
+ SYNTAX: OPTION ANGLE GRADIANS
+DESCRIPTION: Configures these math functions to accept and
+ return angles in gradians: ACOS, ANGLE,
+ ASIN, ASN, ATN, ATAN, COS, COT, CSC, SEC, SIN
+ and TAN.
+------------------------------------------------------------
+ SYNTAX: OPTION ANGLE RADIANS
+DESCRIPTION: Configures these math functions to accept and
+ return angles in radians: ACOS, ANGLE, ASIN,
+ ASN, ATN, ATAN, COS, COT, CSC, SEC, SIN and
+ TAN.
+------------------------------------------------------------
+ SYNTAX: OPTION ARITHMETIC
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION ARITHMETIC DECIMAL
+DESCRIPTION: Currently has no effect.
+------------------------------------------------------------
+ SYNTAX: OPTION ARITHMETIC FIXED
+DESCRIPTION: Currently has no effect.
+------------------------------------------------------------
+ SYNTAX: OPTION ARITHMETIC NATIVE
+DESCRIPTION: Currently has no effect.
+------------------------------------------------------------
+ SYNTAX: OPTION BASE integer
+DESCRIPTION: Sets the default lowest array subscript.
+------------------------------------------------------------
+ SYNTAX: OPTION BUGS
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION BUGS BOOLEAN
+DESCRIPTION: Boolean results are 1 or 0 instead of bitwise.
+------------------------------------------------------------
+ SYNTAX: OPTION BUGS OFF
+DESCRIPTION: Disables bugs commonly found in many BASIC
+ dialects.
+------------------------------------------------------------
+ SYNTAX: OPTION BUGS ON
+DESCRIPTION: Enables bugs commonly found in many BASIC
+ dialects.
+------------------------------------------------------------
+ SYNTAX: OPTION COMPARE
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION COMPARE BINARY
+DESCRIPTION: Causes string comparisons to be
+ case-sensitive.
+------------------------------------------------------------
+ SYNTAX: OPTION COMPARE DATABASE
+DESCRIPTION: Causes string comparisons to be
+ case-insensitive.
+------------------------------------------------------------
+ SYNTAX: OPTION COMPARE TEXT
+DESCRIPTION: Causes string comparisons to be
+ case-insensitive.
+------------------------------------------------------------
+ SYNTAX: OPTION COVERAGE
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION COVERAGE OFF
+DESCRIPTION: Disables BASIC code coverage recording,
+ displayed using the LIST command.
+------------------------------------------------------------
+ SYNTAX: OPTION COVERAGE ON
+DESCRIPTION: Enables BASIC code coverage recording,
+ displayed using the LIST command.
+------------------------------------------------------------
+ SYNTAX: OPTION DATE format$
+DESCRIPTION: Sets the date format string used by C
+ strftime() for DATE$.
+------------------------------------------------------------
+ SYNTAX: OPTION DIGITS integer
+DESCRIPTION: Sets the number of significant digits for
+ PRINT. Setting the value to zero restores
+ the default.
+------------------------------------------------------------
+ SYNTAX: OPTION DISABLE
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION DISABLE COMMAND name$
+DESCRIPTION: Disables the specified BASIC command.
+------------------------------------------------------------
+ SYNTAX: OPTION DISABLE FUNCTION name$
+DESCRIPTION: Disables the specified BASIC function.
+------------------------------------------------------------
+ SYNTAX: OPTION DISABLE OPERATOR name$
+DESCRIPTION: Disables the specified BASIC operator.
+------------------------------------------------------------
+ SYNTAX: OPTION EDIT string$
+DESCRIPTION: Sets the program name used by the EDIT
+ command.
+------------------------------------------------------------
+ SYNTAX: OPTION ENABLE
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION ENABLE COMMAND name$
+DESCRIPTION: Enables the specified BASIC command.
+------------------------------------------------------------
+ SYNTAX: OPTION ENABLE FUNCTION name$
+DESCRIPTION: Enables the specified BASIC function.
+------------------------------------------------------------
+ SYNTAX: OPTION ENABLE OPERATOR name$
+DESCRIPTION: Enables the specified BASIC operator.
+------------------------------------------------------------
+ SYNTAX: OPTION ERROR
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION ERROR GOSUB
+DESCRIPTION: When an error occurs, GOSUB to the error
+ handler. The error handler exits with
+ RETURN.
+------------------------------------------------------------
+ SYNTAX: OPTION ERROR GOTO
+DESCRIPTION: When an error occurs, GOTO to the error
+ handler. The error handler exits with
+ RESUME.
+------------------------------------------------------------
+ SYNTAX: OPTION EXPLICIT
+DESCRIPTION: All variables must be declared using DIM.
+------------------------------------------------------------
+ SYNTAX: OPTION EXTENSION string$
+DESCRIPTION: Sets the BASIC filename extension, commonly
+ ".bas".
+------------------------------------------------------------
+ SYNTAX: OPTION FILES string$
+DESCRIPTION: Sets the program name used by the FILES
+ command.
+------------------------------------------------------------
+ SYNTAX: OPTION IMPLICIT
+DESCRIPTION: Variables need not be declared using DIM,
+ provided arrays have no more that 10
+ elements. This is the opposite of OPTION
+ EXPLICIT, and is the default for all versions
+ of BASIC.
+------------------------------------------------------------
+ SYNTAX: OPTION INDENT integer
+DESCRIPTION: Sets indention level for LIST. Zero means no
+ indention. Default is 2.
+------------------------------------------------------------
+ SYNTAX: OPTION LABELS
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION LABELS OFF
+DESCRIPTION: Disables text labels.
+------------------------------------------------------------
+ SYNTAX: OPTION LABELS ON
+DESCRIPTION: Enables text labels.
+------------------------------------------------------------
+ SYNTAX: OPTION PROMPT string$
+DESCRIPTION: Sets the BASIC prompt.
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT AT char$
+DESCRIPTION: Sets the PRINT AT character, commonly "@".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT BYTE char$
+DESCRIPTION: Sets the suffix character that indicates a
+ variable is of type BYTE, commonly "~".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT COMMENT char$
+DESCRIPTION: Sets the shortcut COMMENT character.
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT CURRENCY char$
+DESCRIPTION: Sets the suffix character that indicates a
+ variable is of type CURRENCY, commonly "@".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT DOUBLE char$
+DESCRIPTION: Sets the suffix character that indicates a
+ variable is of type DOUBLE, commonly "#".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT FILENUM char$
+DESCRIPTION: Sets the FILE NUMBER prefix character,
+ commonly "#".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT IMAGE char$
+DESCRIPTION: Sets the shortcut IMAGE character, commonly
+ ":".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT INPUT char$
+DESCRIPTION: Sets the shortcut INPUT character, commonly
+ "!".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT INTEGER char$
+DESCRIPTION: Sets the suffix character that indicates a
+ variable is of type INTEGER, commonly "%".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT LONG char$
+DESCRIPTION: Sets the suffix character that indicates a
+ variable is of type LONG, commonly "&".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT LPAREN char$
+DESCRIPTION: Sets the LEFT PARENTHESIS character, commonly
+ "(".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT_PRINT char$
+DESCRIPTION: Sets the shortcut PRINT character, commonly
+ "?".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT QUOTE char$
+DESCRIPTION: Sets the QUOTE character, commonly """
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT RPAREN char$
+DESCRIPTION: Sets the RIGHT PARENTHESIS character, commonly
+ ")".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT SINGLE char$
+DESCRIPTION: Sets the suffix character that indicates a
+ variable is of type SINGLE, commonly "!".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT STATEMENT char$
+DESCRIPTION: Sets the statement seperator character,
+ commonly ":".
+------------------------------------------------------------
+ SYNTAX: OPTION PUNCT STRING char$
+DESCRIPTION: Sets the suffix character that indicates a
+ variable is of type STRING, commonly "$".
+------------------------------------------------------------
+ SYNTAX: OPTION RECLEN integer
+DESCRIPTION: Sets the default RANDOM record length.
+------------------------------------------------------------
+ SYNTAX: OPTION RENUM string$
+DESCRIPTION: Sets the program name used by the RENUM
+ command.
+------------------------------------------------------------
+ SYNTAX: OPTION ROUND
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION ROUND BANK
+DESCRIPTION: Round using the Banker rule.
+------------------------------------------------------------
+ SYNTAX: OPTION ROUND MATH
+DESCRIPTION: Round using mathematical rules.
+------------------------------------------------------------
+ SYNTAX: OPTION ROUND TRUNCATE
+DESCRIPTION: Round using truncation.
+------------------------------------------------------------
+ SYNTAX: OPTION SCALE integer
+DESCRIPTION: Sets the number of digits to round after the
+ decimal point for PRINT. Setting the value
+ to zero disables rounding.
+------------------------------------------------------------
+ SYNTAX: OPTION SLEEP double
+DESCRIPTION: Sets multiplier for SLEEP and WAIT. Zero
+ means no waiting. Default is 1.
+------------------------------------------------------------
+ SYNTAX: OPTION STDERR filename$
+DESCRIPTION: Sets the file used for STDERR, which is used
+ by LPRINT commands.
+------------------------------------------------------------
+ SYNTAX: OPTION STDIN filename$
+DESCRIPTION: Sets the file used for STDIN, which is used by
+ INPUT commands.
+------------------------------------------------------------
+ SYNTAX: OPTION STDOUT filename$
+DESCRIPTION: Sets the file used for STDOUT, which is used
+ by PRINT commands.
+------------------------------------------------------------
+ SYNTAX: OPTION STRICT
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION STRICT OFF
+DESCRIPTION: Disables checking for implicit array creation
+ without using the DIM command.
+------------------------------------------------------------
+ SYNTAX: OPTION STRICT ON
+DESCRIPTION: Enables checking for implicit array creation
+ without using the DIM command.
+------------------------------------------------------------
+ SYNTAX: OPTION TERMINAL
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION TERMINAL ADM
+DESCRIPTION: Enables ADM-3A terminal control codes for CLS,
+ COLOR, and LOCATE.
+------------------------------------------------------------
+ SYNTAX: OPTION TERMINAL ANSI
+DESCRIPTION: Enables ANSI terminal control codes for CLS,
+ COLOR, and LOCATE.
+------------------------------------------------------------
+ SYNTAX: OPTION TERMINAL NONE
+DESCRIPTION: Disables terminal control codes for CLS,
+ COLOR, and LOCATE.
+------------------------------------------------------------
+ SYNTAX: OPTION TIME format$
+DESCRIPTION: Sets the time format string used by C
+ strftime() for TIME$.
+------------------------------------------------------------
+ SYNTAX: OPTION TRACE
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION TRACE OFF
+DESCRIPTION: Disables displaying a stack trace when an
+ ERROR occurs.
+------------------------------------------------------------
+ SYNTAX: OPTION TRACE ON
+DESCRIPTION: Enables displaying a stack trace when an ERROR
+ occurs.
+------------------------------------------------------------
+ SYNTAX: OPTION USING
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: OPTION USING ALL char$
+DESCRIPTION: Specifies the magic ALL character for the
+ PRINT USING command. A common value is "&".
+------------------------------------------------------------
+ SYNTAX: OPTION USING COMMA char$
+DESCRIPTION: Specifies the magic COMMA character for the
+ PRINT USING command. A common value is ",".
+------------------------------------------------------------
+ SYNTAX: OPTION USING DIGIT char$
+DESCRIPTION: Specifies the magic DIGIT character for the
+ PRINT USING command. A common value is "#".
+------------------------------------------------------------
+ SYNTAX: OPTION USING DOLLAR char$
+DESCRIPTION: Specifies the magic DOLLAR character for the
+ PRINT USING command. A common value is "$".
+------------------------------------------------------------
+ SYNTAX: OPTION USING EXRAD char$
+DESCRIPTION: Specifies the magic EXRAD character for the
+ PRINT USING command. A common value is "^".
+------------------------------------------------------------
+ SYNTAX: OPTION USING FILLER char$
+DESCRIPTION: Specifies the magic FILLER character for the
+ PRINT USING command. A common value is "*".
+------------------------------------------------------------
+ SYNTAX: OPTION USING FIRST char$
+DESCRIPTION: Specifies the magic FIRST character for the
+ PRINT USING command. A common value is "!".
+------------------------------------------------------------
+ SYNTAX: OPTION USING LENGTH char$
+DESCRIPTION: Specifies the magic LENGTH character for the
+ PRINT USING command. A common value is "\".
+------------------------------------------------------------
+ SYNTAX: OPTION USING LITERAL char$
+DESCRIPTION: Specifies the magic LITERAL character for the
+ PRINT USING command. A common value is "_".
+------------------------------------------------------------
+ SYNTAX: OPTION USING MINUS char$
+DESCRIPTION: Specifies the magic MINUS character for the
+ PRINT USING command. A common value is "-".
+------------------------------------------------------------
+ SYNTAX: OPTION USING PERIOD char$
+DESCRIPTION: Specifies the magic PERIOD character for the
+ PRINT USING command. A common value is ".".
+------------------------------------------------------------
+ SYNTAX: OPTION USING PLUS char$
+DESCRIPTION: Specifies the magic PLUS character for the
+ PRINT USING command. A common value is "+".
+------------------------------------------------------------
+ SYNTAX: OPTION VERSION version$
+DESCRIPTION: Selects a specific BASIC version, which is a
+ combination of OPTION settings, commands,
+ functions and operators. If no version is
+ specified, displays a list of the available
+ versions.
+------------------------------------------------------------
+ SYNTAX: OPTION ZONE integer
+DESCRIPTION: Sets the PRINT zone width. Setting the value
+ to zero restores the default.
+------------------------------------------------------------
+ SYNTAX: PRINT # filenum , [USING format$;] value ...
+DESCRIPTION: Sends output to a file.
+------------------------------------------------------------
+ SYNTAX: PRINT [USING format$;] value ...
+DESCRIPTION: Sends output to the screen.
+------------------------------------------------------------
+ SYNTAX: READ variable [, ...]
+DESCRIPTION: Reads values from DATA statements.
+------------------------------------------------------------
+ SYNTAX: REM ...
+DESCRIPTION: Remark.
+------------------------------------------------------------
+ SYNTAX: RESTORE [line]
+DESCRIPTION: Resets the line used for the next READ
+ statement. line may be either a number or a
+ label.
+------------------------------------------------------------
+ SYNTAX: RETURN
+DESCRIPTION: Concludes a subroutine called by GOSUB.
+------------------------------------------------------------
+ SYNTAX: RUN filename$
+DESCRIPTION: Loads a new BAASIC program and executes the
+ program from the start.
+------------------------------------------------------------
+ SYNTAX: RUN line
+DESCRIPTION: Executes the program in memory beginning at
+ line.
+------------------------------------------------------------
+ SYNTAX: RUN
+DESCRIPTION: Executes the program in memory from the start.
+------------------------------------------------------------
+ SYNTAX: SAVE [filename$]
+DESCRIPTION: Saves the current program into the file
+ filename$ in ASCII format.
+------------------------------------------------------------
+ SYNTAX: STEP
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: STOP
+DESCRIPTION: Interrupts program execution and displays the
+ line number of the STOP command. For use
+ when debugging BASIC programs. Whether STOP
+ issues a SIGINT signal is implementation
+ defined.
+------------------------------------------------------------
+ SYNTAX: THEN
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+ SYNTAX: TO
+DESCRIPTION: Syntax Error.
+------------------------------------------------------------
+
+
+============================================================
+ FUNCTIONS
+============================================================
+
+
+------------------------------------------------------------
+ SYNTAX: N = ABS( X )
+ PARAMETER: X is a number
+DESCRIPTION: The absolute value of X.
+------------------------------------------------------------
+ SYNTAX: N = ATN( X )
+ PARAMETER: X is a number
+DESCRIPTION: The arctangent of X in radians, i.e. the angle
+ whose tangent is X, where -PI/2 < ATN(X) <
+ PI/2.
+------------------------------------------------------------
+ SYNTAX: N = COS( X )
+ PARAMETER: X is a number
+DESCRIPTION: The cosine of X, where X is in radians.
+------------------------------------------------------------
+ SYNTAX: N = EXF( ... )
+DESCRIPTION: Execute hardware program. Causes ERROR 73.
+------------------------------------------------------------
+ SYNTAX: N = EXP( X )
+ PARAMETER: X is a number
+DESCRIPTION: The exponential value of X, i.e., the value of
+ the base of natural logarithms (e = 2.71828)
+ raised to the power of X; if EXP(X) is less
+ that machine infinitesimal, then its value
+ shall be replaced with zero.
+------------------------------------------------------------
+ SYNTAX: N = INT( X )
+ PARAMETER: X is a number
+DESCRIPTION: The largest integer not greater than X; e.g.
+ INT(1.3) = 1 and INT(-1.3) = 2.
+------------------------------------------------------------
+ SYNTAX: N = LOG( X )
+ PARAMETER: X is a number, > 0
+DESCRIPTION: The natural logarithm of X; X shall be greater
+ than zero.
+------------------------------------------------------------
+ SYNTAX: N = RANDOMIZE
+DESCRIPTION: Seeds the pseudo-random number generator with
+ TIME.
+------------------------------------------------------------
+ SYNTAX: N = RND
+DESCRIPTION: The next pseudo-random number in an
+ implementation-defined sequence of
+ pseudo-random numbers uniformly distributed
+ in the range 0 <= RND < 1.
+------------------------------------------------------------
+ SYNTAX: N = RND( X )
+ PARAMETER: X is a number
+DESCRIPTION: Returns a pseudorandom number in the range
+ [0,1]. The value of X is ignored.
+------------------------------------------------------------
+ SYNTAX: N = SGN( X )
+ PARAMETER: X is a number
+DESCRIPTION: The sign of X: -1 if X < 0, 0 if X = 0, and +1
+ if X > 0.
+------------------------------------------------------------
+ SYNTAX: N = SIN( X )
+ PARAMETER: X is a number
+DESCRIPTION: The sine of X, where X is in radians.
+------------------------------------------------------------
+ SYNTAX: S$ = SPC( X )
+ PARAMETER: X is a number
+DESCRIPTION: The string of X spaces. Only for use within
+ the PRINT command.
+------------------------------------------------------------
+ SYNTAX: N = SQR( X )
+ PARAMETER: X is a number, >= 0
+DESCRIPTION: The non-negative square root of X; X shall be
+ non-negative.
+------------------------------------------------------------
+ SYNTAX: S$ = TAB( X )
+ PARAMETER: X is a number
+DESCRIPTION: The string required to advance to column X.
+ Only for use within the PRINT command.
+------------------------------------------------------------
+ SYNTAX: N = TAN( X )
+ PARAMETER: X is a number
+DESCRIPTION: The tangent of X, where X is in radians.
+------------------------------------------------------------
+
+
+============================================================
+ OPERATORS
+============================================================
+
+
+------------------------------------------------------------
+ SYNTAX: X ** Y
+DESCRIPTION: Exponential
+ PRECEDENCE: 14
+------------------------------------------------------------
+ SYNTAX: X ^ Y
+DESCRIPTION: Exponential
+ PRECEDENCE: 14
+------------------------------------------------------------
+ SYNTAX: + X
+DESCRIPTION: Posation
+ PRECEDENCE: 13
+------------------------------------------------------------
+ SYNTAX: - X
+DESCRIPTION: Negation
+ PRECEDENCE: 13
+------------------------------------------------------------
+ SYNTAX: X * Y
+DESCRIPTION: Multiplication
+ PRECEDENCE: 12
+------------------------------------------------------------
+ SYNTAX: X / Y
+DESCRIPTION: Division
+ PRECEDENCE: 12
+------------------------------------------------------------
+ SYNTAX: X + Y
+DESCRIPTION: Addition
+ PRECEDENCE: 9
+------------------------------------------------------------
+ SYNTAX: X - Y
+DESCRIPTION: Subtraction
+ PRECEDENCE: 9
+------------------------------------------------------------
+ SYNTAX: X < Y
+DESCRIPTION: Less than
+ PRECEDENCE: 7
+------------------------------------------------------------
+ SYNTAX: X <= Y
+DESCRIPTION: Less than or Equal
+ PRECEDENCE: 7
+------------------------------------------------------------
+ SYNTAX: X <> Y
+DESCRIPTION: Not Equal
+ PRECEDENCE: 7
+------------------------------------------------------------
+ SYNTAX: X = Y
+DESCRIPTION: Equal
+ PRECEDENCE: 7
+------------------------------------------------------------
+ SYNTAX: X =< Y
+DESCRIPTION: Less than or Equal
+ PRECEDENCE: 7
+------------------------------------------------------------
+ SYNTAX: X => Y
+DESCRIPTION: Greater than or Equal
+ PRECEDENCE: 7
+------------------------------------------------------------
+ SYNTAX: X > Y
+DESCRIPTION: Greater than
+ PRECEDENCE: 7
+------------------------------------------------------------
+ SYNTAX: X >< Y
+DESCRIPTION: Not Equal
+ PRECEDENCE: 7
+------------------------------------------------------------
+ SYNTAX: X >= Y
+DESCRIPTION: Greater than or Equal
+ PRECEDENCE: 7
+------------------------------------------------------------
+
+
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