Thanks, booted and everything :-) :-)

pk> (How many MMU versions are there?)

A copy from a sun manual I got (field engineer handbook):
		=

		cpu impl	cpu ver		mmu impl	mmu ver
Super Sparc:
	2.*	4		1		0		0
	3.0	4		0		0		1
	3.[123]	4		0		0		1
	3.5	4		0		0		4
	5.*	4		0		0		3

uSparc II:
	2.[35]	4		0		0		4
	3.[23]	4		0		0		4
	4.0.2	4		0		0		4
	2.6	4		0		0		4

SuperSparc II:
	1.*	4		0		0		8
	2.*	4		0		0		9

That's from my paper. Now some hands on :-) Some of these digits may
apear if you run devinfo -vp (SunOS) or prtconf -vp (SysV). =

From=20a SS-10:
eagle# devinfo -vp =

[....]
        Node 0xffd6f140
                clock-frequency:  02625a00
                psr-implementation:  00000004
                psr-version:  00000001
                implementation:  00000000
                version:  00000000
                name:  'TI,TMS390Z55'
[....]

More info is available from the prom monitor:

Try things like:

ok ls /
(Look at the list and pick your CPU)
ok cd /TI,TMS390Z55@f,f8fffffc
ok .psr
(You get a lot of digits. The last two are cpu_ver and cpu_impl)
ok .mcr
(Same for mmu)

Harald.