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SBASIC Manual - Page 20

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     SBasic User's Manual     SBasic Version 2.7             Page 20
     Printed:  December 5, 1999
     SBasic allows you to create named 16-bit constants.  You create
     constants with the CONST statement.  For example:

         const  bar = 34

     creates the SBasic constant BAR with a value of 34.  CONST statements
     may refer to previously defined constants, and may include any number
     of math operations.  CONST statements may not, however, refer to
     variables, as the contents of variables are not known at compile-time.
     If you refer to a variable inside a CONST statement, the compiler will
     report an error.

     You must create a constant before your code can reference that
     constant.  This means that you will usually place all CONST statements
     in a block at the beginning of your SBasic source file.

     Note that named constants do not consume any space in the final
     executable file.  They only exist as equates in the assembler source
     file generated by SBasic.