ICAM Virtual Machine V19 - Kxcad.net

ICAM Virtual Machine ® Virtual Machine Reference, Model Customization
The Macro Language, Fundamentals of the Macro Language
For example:
$$ a global untyped variable named LU1
DECLAR/GLOBAL,LU1
$$ a global logical variable array size 10
DECLAR/GLOBAL,LOGICAL,FLAG(10)
$$ 3 local variables that can only hold real values
DECLAR/LOCAL,REAL,X1,Y1,Z1
It is illegal to specify a predefined variable name in a DECLAR command. For example, any
variable with a leading “%” symbol or “$” symbol is predefined and cannot appear in a
DECLAR command. In addition, once a variable is declared it in effect becomes “predefined”
and must not be declared again. That is why it is recommended that all global declarations be
placed in the model startup macro, where they are only declared once.
Array Declaration (RESERV)
The RESERV command is used to define a variable as being an array (the DECLAR command
can also be used for the same purpose). The basic syntax is as follows:
RESERV
/
1 : n
� � � �
, variable _name,
elements , length
The “elements” is a whole number specifying how many elements there are in the named variable.
If the array is to hold text strings, a second whole number can be given specifying the length
of each string in the string array. If “length” is omitted for a string array, the length will be
determined based on the first assignment operation.
To refer to a specific element in an array variable, specify the element number within parentheses
immediately following the array variable name. The element number can be specified either
as a numeric constant or by an expression that returns a numeric result.
An array of 10 elements is defined in the following example. The first element is assigned a
value of 1 (one). Each subsequent element is double the value of the preceding one.
DECLAR/GLOBAL,A1
RESERV/A1,10
A1(1)=1
DO/I=2,10
A1(I)=2*A1(I-1)
ENDOF/DO
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