To examine/modify data areas or the IO page, use

	adb /unix /dev/mem
	$<ud
	data_addr/o	OR	IO_addr/o (e.g. 0177570/o for CSW)

To examine/modify text areas, use

	adb /unix /dev/mem
	$<ui
	text_addr/*i

In both cases, /unix may also be examined/modified, by using

	text_addr?i
	data_addr?*o

Use of structure templates: for example: "_kl_tty$<tty" will explode the
in-core tty structure. "$<tty" will explode the next, etc. Use "$<ud" first!
