User`s manual

mikroBASIC

- Basic Compiler for Microchip PIC microcontrollers

This means that the procedure call

pr1_procedure(tA, tB, tC, tD)

passes tA and tB by the value: it first creates par1 = tA and par2 = tB, then manip-

ulates par1 and par2 so that tA and tB remain unchanged;

passes tC and tD by the address: whatever changes are made upon vp1 and vp2

are also made upon tC and tD.

Note that a procedure without parameters can be substituted by label which marks

the beginning of “procedure” and keyword

return that marks the end of “proce-

dure”. To call such subroutine, use the keyword

gosub. These subroutines must be

placed between the label main: and the end of the source file.

main:

if PORTC.1 = 1 then

gosub TogglePortb

end if

...

' some code

TogglePortb:

' routine

portb = not portb

return

end.

Function declaration is similar to procedure declaration, except it has a specified

return type and a return value. Function declaration has the form:

sub function functionName(parameterList) as returnType

localDeclarations

statements

end sub

where functionName is any valid identifier, returnType is any simple type, state-

ments is a sequence of statements to be executed upon calling the function, and

(parameterList) and localDeclarations are optional declarations of variables

and/or constants.

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