Find all occurrences of a pattern in the entire memory map.
arg1 The address to start searching from.
arg2 The byte pattern to search for. This byte pattern can contain wildcards (?) for example:
EB0?90??8D. You can use String Formatting here.
[arg3] The size of the data to search in. Default is the entire memory map.
$result is set to the number of occurrences.