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1.12. Clauses and Instructions

Clauses can be subdivided into the following types:
  • Null clauses
  • Directives
  • Labels
  • Instructions
  • Assignments
  • Message instructions
  • Keyword instructions
  • Commands

1.12.1. Null Clauses

A clause consisting only of whitespace characters, comments, or both is a null clause . It is completely ignored.

Note

A null clause is not an instruction; for example, putting an extra semicolon after the THEN or ELSE in an IF instruction is not equivalent to using a dummy instruction (as it would be in the C language). The NOP instruction is provided for this purpose.