add list -hex {mybus {msb {opcode(8 downto 1)} data}}
Creates a user-defined bus named "mybus" consisting of three signals; the bus is
displayed in hex.
add wave myproc/int1
{<item_name> {sig1 sig2 sig3 ...}}
Creates a user-defined bus with the name <item_name>; ‘sigi’ are signals to be
concatenated within the user-defined bus. Optional. The following option is available: