Mikroelektronika MIKROE-742 데이터 시트

Labels serve as targets for goto statements. Mark the desired statement with a label
and colon like this:

label_identifier : statement

Before marking a statement, you must declare a label. Labels are declared in dec-
laration part of unit or routine, similar to variables and constants. Declare labels
using the keyword 

label:

label label1, ..., labeln;

Name of the label needs to be a valid identifier. The label declaration, marked state-
ment, and goto statement must belong to the same block. Hence it is not possible
to jump into or out of a procedure or function. Do not mark more than one statement
in a block with the same label.

Here is an example of an infinite loop that calls the Beep procedure repeatedly:

label loop;
...

loop: 

Beep;
goto loop;

Note: label should be followed by end of line (CR) otherwise compiler will report an error:

label loop;
...

loop: Beep; // compiler will report an error

loop: // compiler will report an error

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- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 5