def dispatch(self, byteName, arguments):
        why = None
        try:
            if byteName.startswith('UNARY_'):
                self.unaryOperator(byteName[6:])
            elif byteName.startswith('BINARY_'):
                self.binaryOperator(byteName[7:])
            elif byteName.startswith('INPLACE_'):
                self.inplaceOperator(byteName[8:])
            elif 'SLICE+' in byteName:
                self.sliceOperator(byteName)
            else:
                # dispatch
                bytecode_fn = getattr(self, 'byte_%s' % byteName, None)
                if not bytecode_fn:            # pragma: no cover
                    raise VirtualMachineError(
                        "unknown bytecode type: %s" % byteName
                    )
                why = bytecode_fn(*arguments)

        except:
            # deal with exceptions encountered while executing the op.
            self.last_exception = sys.exc_info()[:2] + (None,)
            log.exception("Caught exception during execution")
            why = 'exception'

        return why
Returns the item highest data item along the map dimensions.
dataset/ETHPy150Open nedbat/byterun/byterun/pyvm2.py/VirtualMachine.dispatch--crossover with--dataset/ETHPy150Open ioam/holoviews/holoviews/core/ndmapping.py/MultiDimensionalMapping.last