The ^ function
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^<identifier>          -> returns address of data block
^<identifier>(element) -> returns address of element data
^<identifier>()        -> returns address of array definition block (ie, data block)


^integer%  => value of integer%     !^integer%=integer%
^real      => value of real         |^real=real
^byte&     => value of byte         ?^byte&=value
^string$   => string descriptor     !^string$=>contents of string
^PROCname  =>
^FNname    =>
^array()   => array parameter block
^array(0)  => start of array data

Negative offsets dependent on address alignment, avoid using:
^integer%?-1=0, name terminator
^integer%?-2=ASC"%"
^real?-1=0
^byte&?-1=0
^byte&?-2=ASC"&"
^string$-1=0
^string$?-2=ASC"$"


32-bit addresses:
^string$+0 => address of string contents
^string$+4 => string length

^struct{}   => format block
^struct{}+4 => data block

16-bit addresses:
^string$+0 => address of string contents
^string$+2 => string length


If variable doen't exist, it is created, just like fred=1 or LOCAL jim.