National Instruments AutoCode NI MATRIX - Manual (Page 124)

Chapter 5 Generated Code Architecture
AutoCode Reference 5-16 ni.com
mixed data-typed variables reflecting each procedure output signal and
type.
The states of the procedure are provided by the argument S, a pointer to
a structure named
_ procedure name_s . This structure contains the
double-buffered private states used in the procedure, a flag to toggle the
private states from one buffer to another, and the states structures of all
procedures nested in the procedure. The private states are provided by the
element
procedure name_ps , a two-element array of a structure named
_ procedure name_ps . The private states structure is composed of mixed
(usually RT_FLOAT ) data-typed variables reflecting each state needed in the
procedure. The flag to toggle private states is a variable of type
RT_INTEGER named _ procedure name_x whose value is toggled
between 0 and 1 by the subsystem invoking the procedure.
The informational data of the procedure is provided by the argument I,
a pointer to a structure named
_ procedure name_info . This structure
contains:
• Status and control flags stored in an array named iinfo .
• Time-related information stored in an array named rinfo .
• Block parameter data used by block algorithms in the procedure stored
in arrays named
IP or RP .
• Xmath and Variable block variables used in the procedure stored as
pointers to global variables and named after the Xmath variables or
Variable block variables.
In addition, information data of the form described for procedures nested
in the procedure is provided in the
_ procedure name_i structure as
a pointer to a structure named _ nested_procedure name_info .
Table 5-1 and Table 5-2 summarize the elements in structure
_ procedure name_info . These elements, which are used by the
procedure, need to be set by the function invoking the procedure.