Teledyne LeCroy Voyager Exerciser Generation Script Language Manual - Manual (Page 102)

Teledyne LeCroy Voyager USB 3.0 Exerciser Generation Script Language Reference Manual
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10 Advanced Script Parser Features
The script parser has some advanced features that simplify creation of complicated generation
scenarios. Such features include:

Using local and global integer variables

Using local and global structure variables

Using special data pattern creators in field assignments

Using multipliers with structure variables in field assignments

Using = + in field assignments

Initializing structure variables from hex streams

Supporting arithmetic operations with parser variables

Supporting concatenation operations for structure variables

Using parser sizeof operators

Using parser while, for, and if-else operators

Calling generation procedures with parameters

Allowing users to trace/debug the parser and follow variable and template construction

Supporting name aliasing for constants, settings, data patterns, templates, variables,
instructions and named instruction parameters.

Using include paths to specify additional folders in which to look for included files
10.1 Local Numeric Parser Variables
You can declare a local numeric parser variable, which is seen only inside the generation
procedure, and use it in field assignments.
Format
[ Local ] var = expression
Note: The Local keyword is required if you already have a global variable with the same name.
Using this keyword explicitly instructs the script parser to declare a local variable with the same
name.
Example
y = 10 # Declare a global numeric variable with name 'y'.
Main
{
x =
0x10 # Declare a local variable 'x'.
Local y = 1 # Explicitly declare a local variable 'y'
Send TX_PACKET
{
DevAddr = x
# Use the previously assigned variable 'x'
Endp = y + 2 # Use the previously assigned variable 'y' + 2
SeqNum = z # Create a new variable 'z' with value 0.
}
}