Denso Power Net Terminal BHT-7500 Dokumentacja Pobierz pdf (Strona 19)

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Defining and declaring user-defined functions more easily

BHT-BASIC 3.5 has added FUNCTION…END FUNCTION, SUB...END SUB, and DECLARE

statements. With the former two, you may easily define your own functions—FUNCTION and

SUB. With the latter one, you may declare FUNCTION and SUB functions which are defined

in any other source files.

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Distinction between local variables and global variables

(defined by PRIVATE and GLOBAL statements)

BHT-BASIC 3.5 makes distinction between local variables and global variables to restrict the

access to the variables.

Both local variables and global variables may be defined for work variables and register vari-

ables. Local variables can only be accessed by any routine in the file where that variable is

defined. Global variables can be accessed by any routine in a program.

However, variables used without declaration inside

FUNCTION or SUB function are regarded

as local variables and can be accessed only within that function.

Since local variables are restricted in access, you can define them with the same name in dif-

ferent files.

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Defining constants

BHT-BASIC 3.5 can define constants.

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