Fix bug (introduced a few commits ago) when generating SFC actions that are mapped onto variables --> Make generate_sfcdecl_c stateless (i.e. does not depend on order by which it is called).
(*
* (c) 2011 Edouard Tisserant
*
* Fake semaphore support, for non preemptive implementation.
*
*)
FUNCTION_BLOCK SEMA
VAR_INPUT
CLAIM : BOOL;
RELEASE : BOOL;
END_VAR
VAR_OUTPUT
BUSY : BOOL;
END_VAR
VAR
Q_INTERNAL : BOOL;
END_VAR
Q_INTERNAL := CLAIM OR ( Q_INTERNAL AND (NOT RELEASE));
BUSY := Q_INTERNAL;
END_FUNCTION_BLOCK