WDBasic Online-Help

Version: 0.10
(c) 2009 - 2011 by Wolfgang Draxler

Variables

Variables can be declared from "a" to "z"

Numbers

Numbers has no denoted and can have digits.

Strings

Strings are denoting by "$"
The maximum length for a String is limited to 255 characters.

Operators

Comparision: <, >, =, <>, <=, >=
Basic math.:+, -, *, /, mod, and, or, xor

Statements

Bye

Exit the WDBadic-Program, and returned to the Operating System.

Break <Line>

Set a breakpoint on the given line.

Continue

The broken program will be continue.

See also:
Stop
Break
UnBreak?

End

The running program will be ended.
The program cannot continue. The values of the variables are not cleared.

FileCopy "<src-filename>" "<dest-filename>"

Copy the Src-Filename to the Dest-Filename

See also:
FileDelete
FileMove

FileDelete "<filename>"

Delete the Filename

See also:
FileCopy
FileMove

FileMove "<src-filename>" "<dest-filename>"

Move the Src-Filename to the Dest-Filename

See also:
FileCopy
FileDelete

For <variable>=<expr> to <expr> step <expr>

Loops from the start value to the end value by the next statements of the Statement "Next".

See also:
Next

Goto <line>

The program goes to the specified line.

See also:
On...Goto
Gosub

Gosub <line>

The program goes to the specified sub.

See also:
Goto
On...Goto

Help

Show this help.

If [expr] then [statement]

The expression/condition is 0 then the statement after "then" will be exectuted.

Info

Show any information about WDBasic.

Input <variable>[, < variable >[,...]]

Reads one or more values and write it into the variable(s) from the user.

[Let] <variable>=<expr>

Calculate the expression and write the value into the variable.
The keyword "let" is optional

List [<Startline> [, <Endline>]]

List the program between the given lines. By the default all lines are displayed

Load "<Filename[.bas]>"

Load a program from the operating system with the extension ".bas"

See also:
Save

LoadBin "<Filename[.wdbb]>"

Load a basic-binary-program from the operating system with the extension ".wdbb"

See also:
SaveBin

New

Clear the programs and the variable.

Next

See also:
For

On <integer> Goto line [, line [, line [, ...]]]

The program jumps to the specified line.

See also:
Goto
Gosub

Pause [seconds]

Without the second expression, the program waits until any key is pressed.
With seconds the program will wait the seconds.

Print <expr>[, <expr>[,...]] [;]

Prints the expressions

See also:
Input

Randomize

Start the Random

See also:
Rnd

Rem <text>

The entire text will be ignored

Return

See also:
Gosub

Run [Line]

The program is started with the given line.
The default is the first line of the program.

Save "<Filename[.bas]>"

Save the program into the operation system with the extension ".bas"

See also:
Load

SaveBin "<Filename[.wdbb]>"

Save the basic-binary-program into the operation system with the extension ".wdbb"

See also:
LoadBin

Stop

The running program is stopped. It can be continued with the statement "Continue".
The values of the variables are not cleared.

See also:
Continue
Break
UnBreak

ScrClear

Clear the Screen-Window

ScrColor (<FG>,<BG>)

Set the color of the text.

Parameters:
FG ... Fordergroundcolor
BG ... Backgroundcolor

Colorvalue	Color
0	black
1	blue
2	green
3	cyan
4	red
5	mangenta
6	brown
7	light gray
8	dark gray
9	light blue
10	light green
11	light cyan
12	light red
13	light magenta
14	yellow
15	white

ScrCurPos (y,x)

Set the position of the text-cursor

Trace

When the program is started, all executed lines are displayed.

See also:
UnTrace

Unbreak <Line>

Delete the breakpoint on the given lines

See also:
Continue
Stop
UnBreak

Untrace

Stop the tracing.

See also:
Trace

Functions

Abs(<Value>)

Return the absolute Value from the parameter value.

Parameter: Value ... Number
Return: Number

ACos(<Value>)

Return the arcus cosine from the parameter value.

Parameter: Value ... Number
Return: Number

ACosH(<Value>)

Return the arcus hyp cosine from the parameter value.

Parameter: Value ... Number
Return: Number

Asc

Parameter: Value ... String
Return: Number

ASin(<Value>)

Return the arcus hyp cosine from the parameter value.

Parameter: Value ... Number
Return: Number

ASinH(<Value>)

Return the arcus hyp sinus from the parameter value.

Parameter: Value ... Number
Return: Number

ATan(<Value>)

Return the arcus tangents from the parameter value.

Parameter: Value ... Number
Return: Number

ATanH(<Value>)

Return the arcus hyp tangents from the parameter value.

Parameter: Value ... Number
Return: Number

Chr$

Parameter: Value ... Number
Return: String

Cos(<Value>)

Return the cosine from the parameter value.

Parameter: Value ... Number
Return: Number

CosH(<Value>)

Return the hyp cosine from the parameter value.

Parameter: Value ... Number
Return: Number

Exp

Parameter:
Return: Number

Frac

Parameter:
Return: Number

Int

Parameter:
Return: Number

Left$

Parameter:
Return: String

Len

Get the of String

Parameter: Value ... String
Return: Number

Ln

Parameter:
Return: Number

Log

Parameter:
Return: Number

Mid$

Parameter:
Return: String

Pi

Get the PI-Constant

Parameter: None
Return: 3.141592654

Pos

Parameter:
Return: Number

Right$(<Value>)

Parameter:
Return: String

Rnd

Get a random number

Parameter: No
Return: Number

Round

Parameter:
Return: Number

ScrCurPosX

Get the X-Position of the Text-Cursor.

Parameter: None
Return: Number

ScrCurPosY

Get the Y-Position of the Text-Cursor.

Parameter: None
Return: Number

Sgn(<Value>)

Parameter:
Return: Number

Sin(<Value>)

Return the sinus from the parameter value.

Parameter: Value ... Number
Return: Number

Sinh(<Value>)

Parameter: Value ... Number
Return: Number
Return the hyp sinus from the parameter value.

Sqr(<Value>)

Parameter:
Return:
Description:

Str$(<Value>)

Convert the number a string

Parameter: Value ... Number
Return: String

Tan(<Value>)

Return the tangents from the parameter value.

Parameter: Value ... Number
Return: Number

TanH(<Value>)

Return the hyp tangents from the parameter value.

Parameter: Value ... Number
Return: Number

Val

Return the number value of the string

Parameter: String
Return: Number