SELECT-CASE-END SELECT
From MCS Wiki AVR
Contents |
Action
Executes one of several statement blocks depending on the value of an expression.
Syntax
SELECT CASE var
CASE test1 : statements
[CASE test2 : statements ]
CASE ELSE : statements
END SELECT
Remarks
Var |
Variable to test the value of |
Test1 |
Value to test for. |
Test2 |
Value to test for. |
You can test for conditions to like:
CASE IS > 2 :
Another option is to test for a range :
CASE 2 TO 5 :
See also
Example
'----------------------------------------------------------------------------------------- 'name : case.bas 'copyright : (c) 1995-2005, MCS Electronics 'purpose : demonstrates SELECT CASE statement 'micro : Mega48 'suited for demo : yes 'commercial addon needed : no '----------------------------------------------------------------------------------------- $regfile = "m48def.dat" ' specify the used micro $crystal = 4000000 ' used crystal frequency $baud = 19200 ' use baud rate $hwstack = 32 ' default use 32 for the hardware stack $swstack = 10 ' default use 10 for the SW stack $framesize = 40 ' default use 40 for the frame space Dim I As Byte 'dim variable Dim S As String * 5 , Z As String * 5 Do Input "Enter value (0-255) " , I Select Case I Case 1 : Print "1" Case 2 : Print "2" Case 3 To 5 : Print "3-5" Case Is >= 10 : Print ">= 10" Case Else : Print "Not in Case statement" End Select Loop End 'note that a Boolean expression like > 3 must be preceded 'by the IS keyword
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