# Examine Field Expression Syntax

The syntax described in this appendix can be used in the Examine fields of display windows and in Register windows and Data windows, but not in the Variables window.

### Operators

`

    Unary            - ~                    (for minus NOT)
    arithmetic            + - * /
    bitwise            | & ~ ^ << >>                     (for OR AND NOT XOR bit shifts)
    grouping            (  )

`

### Constants

`

    constants are hexadecimal by default
    constants prefixed by
                $ or 0x are hexadecimal
                # are decimal
                % are binary
    symbols are allowed

`

### Registers

A register name can be used anywhere in place of a symbol:

``

    R0-R15 SP LK PC