GPC Developer Guides

Definitions

The sole purpose of a definition is to assign a value to a word and therefore make a script easier for a human to read. They do not use any bytecode space in a script. When a script is compiled the words are changed to their assigned value.
Syntax
define <name> = <value or expression>;
GPC
<name>  : The name of the constant
<value or expression> : The value or expression assigned to the constant
<name>  : The name of the constant
<value or expression> : The value or expression assigned to the constant
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Info: The value of the definition must be possible to compute during compilation - meaning you can use math but not math functions.
Once a word is defined and given a value, that word can be used anywhere in the script where a value is valid, as shown below:
GPC
define my_value = 50;

main {
    
    if(get_val(XB1_LT)) {
       set_val(XB1_RT, my_value);
    }

}
define my_value = 50;

main {
    
    if(get_val(XB1_LT)) {
       set_val(XB1_RT, my_value);
    }

}
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If you wish to assign a value to a word and change its value during run-time, you would use a variable instead of a define.

Variables

Data Section