Elmo HARmonica, HARSFEN0602 software manual Global variables, Jumps

HARSFEN0602ElmoHARmonicaSoftwareManual	PRELIMINARYDRAFT
exits, the value the automatic variables is not saved.
Automatic variable cannot be a vector.

Example: In the example of the STATISTIC function, variable k is the automatic variable

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5.6.5Global variables

A function can refer a persistent variable. In this case the referred persistent variable must be declared global inside function and must be defined above function definition. The global keyword is obligatory; otherwise the variable will be referred as an automatic variable of the function.

The dimension of a persistent variable is defined once a program during its definition and the same for this global variable in all functions where it is used. The legal way to declare the dimension of a persistent variable inside function is empty square brackets after its name or absence any brackets.

Example: In the example of the STATISTIC function, variable vec[11] is the global variable. It is defined above the function definition and inside the function body it is redeclared as global.

float temp;	Declare the global vector variable
int vec[10] ;	Declare the global vector variable
…
function [float a]=func(int b )	Declaration of a function func
float temp ;	Declare temp as an automatic variable,
	because the global keyword is absent.
…	Function body
return	The end of the function
…
function [float a]=func1(float temp )	Declaration of a function func1. In this case
	temp is not global variable, but an input
	argument.
…
return	The end of the function
…
function [float a]=func2(float b )	Declaration of a function fun2.
global float temp ;	Redeclaration of the global variable temp. In
	this function temp is the global variable.
global int vec[] ;	Redeclaration of the global variable vec.
	Notice that its dimension is omitted during
	redeclaration and its actual dimension is 10 as
	it is defined above.

5.6.6Jumps

Syntax:

goto ##LABEL1

The jump (goto) command instructs the program to continue its execution at the label specified by the jump command.