Teledyne LeCroy UWBTrainer Exerciser Script Language - Manual (Page 107)

LeCroy Corporation UWBTrainer Exerciser - Generation Script Language Reference Manual
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10.19.3 Nested Calls Using Global Variables
You can call another generation procedure inside a generation procedure. This is called
"nested calls". During such calls, the current values of global variables are used when the called
generation procedure is parsed.
Example
z = 18
SOME_PKT_TEMPLATE $Z # Declare a global structure variable 'Z'
# based on the template 'SOME_PKT_TEMPLATE'.
Main
{
$Y = SOME_PKT_TEMPLATE # Declare a local structure variable 'Y'
{
Field0 = z + 12 # Use a global variable 'z'.
}
z++ # Increment the global variable 'z'.
Send Y # Send frame based on the local structure variable 'Y' .
Call Block1( $Y, 12 , 10 ) # Call 'Block1'.
}
Block1( SOME_PKT_TEMPLATE $p, x, y )
{
$p # Change the local structure variable 'p'.
{
Field0 = 2 *(x + y) + z # Use local variables 'x', 'y' and global
# variable 'z' here.
}
Send Z # Send frame based on the global variable 'Z'.
$Z # Change the global structure variable 'Z'.
{
Field0 = 0x0000BEEF
}
$Z[ 0 , 4 ] = 0xA # Change the 4 bits of structure variable 'Z'
# at offset 0 bits .
Call Block2( $p ) # Call 'Block2'.
}
Block2( SOME_PKT_TEMPLATE $p )
{
Send p # Send frame based on the local structure variable 'p'.
Send Z # Send frame based on the global structure variable 'Z'.
}