====== SUB ======

[pet] [vic20] [c64] [c16] [cplus4] [c128] [x16] [m65]

The ''SUB'' keyword starts a subroutine block.

===== Syntax =====

<code xcbasic>
SUB <name> ([<arg> AS <type>[, <arg> AS <type>]...]) [OVERLOAD] [PRIVATE|SHARED] [STATIC]
  <statements>
END SUB
</code>

  * <name> must be a valid [[syntax#identifiers|identifier]]
  * The argument list is optional, but the parenthesis ''()'' must be included
  * The ''OVERLOAD'' keyword must be present if the function overloads another function with the same name
  * If the subroutine is defined in a [[TYPE]] block, the ''PRIVATE'' keyword indicates that the subroutine may only be called from within that TYPE block.
  * The ''SHARED'' keyword indicates that the function is visible from within other code modules
  * The ''STATIC'' keyword indicates that no stack frame is allocated on each subroutine call. See [[subroutines#static_vs_dynamic]]

===== See also =====

  * [[call]]
  * [[subroutines|]]
  * [[functions|]]