<s>
The	O
88000	B-Architecture
(	O
m88k	B-Architecture
for	O
short	O
)	O
is	O
a	O
RISC	B-Architecture
instruction	I-Architecture
set	I-Architecture
architecture	O
developed	O
by	O
Motorola	O
during	O
the	O
1980s	O
.	O
</s>
<s>
The	O
MC88100	B-General_Concept
arrived	O
on	O
the	O
market	O
in	O
1988	O
,	O
some	O
two	O
years	O
after	O
the	O
competing	O
SPARC	B-Architecture
and	O
MIPS	B-Device
.	O
</s>
<s>
Due	O
to	O
the	O
late	O
start	O
and	O
extensive	O
delays	O
releasing	O
the	O
second-generation	O
MC88110	B-Device
,	O
the	O
m88k	B-Architecture
achieved	O
very	O
limited	O
success	O
outside	O
of	O
the	O
MVME	B-Device
platform	O
and	O
embedded	O
controller	O
environments	O
.	O
</s>
<s>
When	O
Motorola	O
joined	O
the	O
AIM	O
alliance	O
in	O
1991	O
to	O
develop	O
the	O
PowerPC	B-Architecture
,	O
further	O
development	O
of	O
the	O
88000	B-Architecture
ended	O
.	O
</s>
<s>
Motorola	O
entered	O
the	O
1980s	O
in	O
a	O
position	O
of	O
strength	O
;	O
their	O
recently-introduced	O
Motorola	B-Device
68000	I-Device
easily	O
outperformed	O
any	O
other	O
microprocessor	B-Architecture
on	O
the	O
market	O
,	O
and	O
its	O
32-bit	O
architecture	O
was	O
naturally	O
suited	O
to	O
the	O
emerging	O
Unix	B-Device
workstation	I-Device
market	O
.	O
</s>
<s>
Into	O
this	O
came	O
the	O
early	O
1980	O
's	O
introduction	O
of	O
the	O
RISC	B-Architecture
concept	O
.	O
</s>
<s>
At	O
first	O
,	O
there	O
was	O
an	O
intense	O
debate	O
within	O
the	O
industry	O
whether	O
the	O
concept	O
would	O
actually	O
improve	O
performance	O
,	O
or	O
if	O
its	O
longer	O
machine	B-Language
language	I-Language
programs	O
would	O
actually	O
slow	O
the	O
execution	O
through	O
additional	O
memory	O
accesses	O
.	O
</s>
<s>
All	O
such	O
debate	O
was	O
ended	O
by	O
the	O
mid-1980s	O
when	O
the	O
first	O
RISC-based	B-Architecture
workstations	B-Device
emerged	O
;	O
the	O
latest	O
Sun-3/80	B-Device
running	O
on	O
a	O
20MHz	O
Motorola	B-Device
68030	I-Device
delivered	O
about	O
3	O
MIPS	B-Device
,	O
whereas	O
the	O
first	O
SPARC-based	O
Sun-4/260	B-Device
with	O
a	O
16MHz	O
SPARC	B-Architecture
delivered	O
10	O
MIPS	B-Device
.	O
</s>
<s>
Hewlett-Packard	O
,	O
DEC	O
and	O
other	O
large	O
vendors	O
all	O
began	O
moving	O
to	O
RISC	B-Architecture
platforms	O
.	O
</s>
<s>
Apple	O
remained	O
the	O
company	O
's	O
only	O
large	O
vendor	O
outside	O
the	O
workstation	B-Device
space	O
;	O
other	O
users	O
of	O
the	O
68000	B-Device
,	O
notably	O
Atari	O
Corporation	O
and	O
Commodore	O
International	O
,	O
were	O
floundering	O
in	O
a	O
market	O
that	O
was	O
rapidly	O
standardizing	O
on	O
IBM	O
PC	O
compatibles	O
.	O
</s>
<s>
RISC	B-Architecture
designs	O
were	O
a	O
conscious	O
effort	O
to	O
tailor	O
the	O
processor	O
to	O
the	O
types	O
of	O
operations	O
being	O
called	O
by	O
the	O
compilers	B-Language
on	O
that	O
platform	O
,	O
in	O
the	O
case	O
of	O
Unix	B-Device
workstations	I-Device
,	O
the	O
C	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
The	O
seminal	O
IBM	B-Device
801	I-Device
project	O
had	O
noted	O
that	O
compilers	B-Language
generally	O
did	O
not	O
use	O
the	O
vast	O
majority	O
of	O
the	O
instructions	O
available	O
to	O
them	O
,	O
and	O
instead	O
used	O
the	O
simplest	O
version	O
of	O
the	O
instructions	O
,	O
often	O
because	O
these	O
performed	O
the	O
fastest	O
.	O
</s>
<s>
This	O
gave	O
room	O
to	O
increase	O
the	O
number	O
of	O
processor	B-General_Concept
registers	I-General_Concept
,	O
which	O
had	O
a	O
far	O
greater	O
impact	O
on	O
performance	O
than	O
the	O
removed	O
special-case	O
instructions	O
.	O
</s>
<s>
For	O
this	O
reason	O
,	O
the	O
RISC	B-Architecture
concept	O
can	O
be	O
said	O
to	O
be	O
driven	O
by	O
the	O
real-world	O
design	O
of	O
compilers	B-Language
.	O
</s>
<s>
Motorola	O
's	O
articles	O
on	O
the	O
88000	B-Architecture
design	O
speak	O
of	O
single-cycle	O
instructions	O
,	O
large	O
processor	B-General_Concept
register	I-General_Concept
files	O
and	O
other	O
hallmarks	O
of	O
the	O
RISC	B-Architecture
concept	O
,	O
but	O
do	O
n't	O
mention	O
the	O
word	O
"	O
RISC	B-Architecture
"	O
even	O
once	O
.	O
</s>
<s>
As	O
existing	O
RISC	B-Architecture
designs	O
had	O
entered	O
the	O
market	O
already	O
,	O
the	O
company	O
decided	O
that	O
they	O
would	O
not	O
attempt	O
to	O
compete	O
with	O
these	O
and	O
would	O
instead	O
produce	O
the	O
world	O
's	O
most	O
powerful	O
processor	O
.	O
</s>
<s>
To	O
do	O
this	O
,	O
they	O
took	O
design	O
notes	O
from	O
one	O
of	O
the	O
fastest	O
computers	O
of	O
a	O
previous	O
era	O
,	O
the	O
CDC	B-Device
6600	I-Device
supercomputer	B-Architecture
.	O
</s>
<s>
In	O
particular	O
,	O
they	O
adopted	O
the	O
6600	O
's	O
concept	O
of	O
a	O
scoreboard	B-General_Concept
.	O
</s>
<s>
Scoreboarding	B-General_Concept
allowed	O
the	O
CPU	O
to	O
examine	O
the	O
instruction	O
's	O
use	O
of	O
registers	O
and	O
immediately	O
dispatch	O
those	O
that	O
did	O
not	O
rely	O
on	O
previous	O
calculations	O
that	O
were	O
not	O
yet	O
complete	O
;	O
this	O
allowed	O
the	O
instructions	O
to	O
be	O
re-ordered	O
to	O
allow	O
ones	O
that	O
had	O
their	O
required	O
data	O
to	O
run	O
while	O
others	O
had	O
their	O
data	O
loaded	O
from	O
the	O
cache	B-General_Concept
or	O
memory	O
.	O
</s>
<s>
This	O
was	O
costly	O
in	O
terms	O
of	O
pin	O
count	O
;	O
both	O
the	O
instruction	O
and	O
data	B-General_Concept
caches	I-General_Concept
had	O
32	O
pins	O
for	O
their	O
address	O
and	O
32	O
pins	O
for	O
the	O
data	O
,	O
meaning	O
the	O
complete	O
system	O
used	O
128	O
pins	O
on	O
the	O
"	O
P-bus	O
"	O
.	O
</s>
<s>
This	O
strongly	O
favored	O
having	O
a	O
dedicated	O
instruction	O
pathway	O
to	O
an	O
external	O
instruction	O
cache	B-General_Concept
.	O
</s>
<s>
The	O
caches	O
,	O
and	O
associated	O
memory	B-General_Concept
management	I-General_Concept
units	I-General_Concept
(	O
MMU	B-General_Concept
)	O
were	O
initially	O
external	O
,	O
a	O
cache	B-General_Concept
controller	O
could	O
be	O
connected	O
to	O
either	O
the	O
data	O
or	O
instruction	O
busses	O
,	O
and	O
up	O
to	O
four	O
controllers	O
could	O
be	O
used	O
on	O
either	O
bus	O
.	O
</s>
<s>
This	O
was	O
aimed	O
at	O
designers	O
who	O
wished	O
to	O
customize	O
the	O
system	O
;	O
new	O
functional	O
units	O
could	O
be	O
added	O
without	O
affecting	O
the	O
existing	O
instruction	B-General_Concept
set	I-General_Concept
architecture	I-General_Concept
,	O
ensuring	O
software	O
compatibility	O
for	O
the	O
main	O
functionality	O
.	O
</s>
<s>
Every	O
88000	B-Architecture
came	O
with	O
SFU1	O
already	O
installed	O
,	O
the	O
floating	B-General_Concept
point	I-General_Concept
unit	I-General_Concept
(	O
FPU	B-General_Concept
)	O
.	O
</s>
<s>
By	O
1987	O
it	O
was	O
widely	O
known	O
that	O
Motorola	O
was	O
designing	O
its	O
own	O
RISC	B-Architecture
processor	I-Architecture
.	O
</s>
<s>
Referred	O
to	O
by	O
the	O
computer	O
industry	O
as	O
the	O
"	O
78000	O
"	O
,	O
an	O
homage	O
to	O
the	O
earlier	O
68000	B-Device
,	O
it	O
became	O
the	O
88000	B-Architecture
when	O
it	O
was	O
released	O
in	O
April	O
1988	O
.	O
</s>
<s>
The	O
68030	B-Device
,	O
released	O
a	O
year	O
earlier	O
,	O
had	O
273,000	O
transistors	O
,	O
including	O
the	O
arithmetic	B-General_Concept
logic	I-General_Concept
unit	I-General_Concept
(	O
ALU	O
)	O
and	O
memory	B-General_Concept
management	I-General_Concept
unit	I-General_Concept
(	O
MMU	B-General_Concept
)	O
on	O
a	O
single	O
chip	O
,	O
with	O
the	O
optional	O
floating	B-General_Concept
point	I-General_Concept
unit	I-General_Concept
(	O
FPU	B-General_Concept
)	O
as	O
a	O
separate	O
chip	O
.	O
</s>
<s>
In	O
contrast	O
,	O
the	O
88000	B-Architecture
packaged	O
the	O
ALU	O
and	O
FPU	B-General_Concept
together	O
on	O
the	O
750,000	O
transistor	O
MC88100	B-General_Concept
,	O
and	O
the	O
memory	B-General_Concept
management	I-General_Concept
unit	I-General_Concept
(	O
MMU	B-General_Concept
)	O
and	O
16KB	O
static	B-Architecture
RAM	I-Architecture
cache	B-General_Concept
in	O
the	O
750,000	O
transistor	O
MC88200	B-Architecture
.	O
</s>
<s>
In	O
contrast	O
to	O
the	O
68030	B-Device
where	O
the	O
FPU	B-General_Concept
was	O
truly	O
optional	O
,	O
a	O
practical	O
88000	B-Architecture
system	O
could	O
not	O
be	O
built	O
without	O
at	O
least	O
one	O
MC88200	B-Architecture
.	O
</s>
<s>
Systems	O
could	O
include	O
more	O
than	O
one	O
MC88200	B-Architecture
,	O
producing	O
larger	O
caches	O
and	O
allowing	O
multiple	O
paths	O
to	O
main	O
memory	O
for	O
improved	O
performance	O
.	O
</s>
<s>
Running	O
at	O
20MHz	O
,	O
it	O
reached	O
34,000	O
Dhrystones	O
or	O
17VUPS	O
,	O
compared	O
to	O
about	O
12MIPS	O
for	O
a	O
12.5MHz	O
SPARC	B-Architecture
of	O
the	O
same	O
vintage	O
in	O
the	O
SPARCstation	B-Device
,	O
or	O
around	O
3.3MIPS	O
of	O
the	O
20MHz	O
68030	B-Device
.	O
</s>
<s>
At	O
the	O
time	O
,	O
Motorola	O
marketed	O
the	O
88000	B-Architecture
strictly	O
to	O
the	O
high-end	O
of	O
the	O
market	O
,	O
including	O
"	O
telecommunications	O
,	O
artificial	O
intelligence	O
,	O
graphics	O
,	O
three-dimensional	O
animation	O
,	O
simulation	O
,	O
parallel	O
processing	O
and	O
supercomputers	B-Architecture
"	O
,	O
while	O
they	O
suggested	O
the	O
existing	O
68k	O
series	O
would	O
continue	O
to	O
be	O
used	O
in	O
the	O
workstation	B-Device
market	O
.	O
</s>
<s>
Instead	O
,	O
most	O
potential	O
customers	O
ignored	O
the	O
88000	B-Architecture
,	O
and	O
the	O
system	O
saw	O
little	O
use	O
.	O
</s>
<s>
As	O
the	O
original	O
release	O
saw	O
next	O
to	O
no	O
use	O
outside	O
Motorola	O
's	O
own	O
products	O
,	O
and	O
those	O
traditional	O
customers	O
were	O
starting	O
to	O
move	O
to	O
other	O
RISC	B-Architecture
designs	O
,	O
the	O
company	O
re-launched	O
the	O
design	O
in	O
a	O
single-chip	O
form	O
,	O
the	O
MC88110	B-Device
.	O
</s>
<s>
In	O
the	O
late	O
1980s	O
,	O
several	O
companies	O
were	O
actively	O
examining	O
the	O
88000	B-Architecture
series	O
for	O
future	O
use	O
,	O
including	O
NeXT	O
,	O
Apple	O
Computer	O
and	O
Apollo	O
Computer	O
,	O
but	O
all	O
had	O
given	O
up	O
on	O
the	O
design	O
by	O
the	O
time	O
the	O
88110	B-Device
was	O
finally	O
available	O
in	O
1990	O
.	O
</s>
<s>
There	O
was	O
an	O
attempt	O
to	O
popularize	O
the	O
system	O
with	O
the	O
88open	O
group	O
,	O
similar	O
to	O
what	O
Sun	O
Microsystems	O
was	O
attempting	O
with	O
their	O
SPARC	B-Architecture
design	O
.	O
</s>
<s>
In	O
the	O
early	O
1990s	O
Motorola	O
joined	O
the	O
AIM	O
effort	O
to	O
create	O
a	O
new	O
RISC	B-Architecture
architecture	O
based	O
on	O
the	O
IBM	B-Architecture
POWER	I-Architecture
architecture	O
.	O
</s>
<s>
They	O
worked	O
a	O
few	O
features	O
of	O
the	O
88000	B-Architecture
into	O
the	O
new	O
PowerPC	B-Architecture
architecture	O
to	O
offer	O
their	O
customer	O
base	O
some	O
sort	O
of	O
upgrade	O
path	O
.	O
</s>
<s>
At	O
that	O
point	O
the	O
88000	B-Architecture
was	O
dumped	O
as	O
soon	O
as	O
possible	O
.	O
</s>
<s>
Like	O
the	O
68000	B-Device
before	O
it	O
,	O
the	O
88000	B-Architecture
was	O
considered	O
to	O
be	O
a	O
"	O
clean	O
"	O
design	O
.	O
</s>
<s>
It	O
is	O
a	O
pure	O
32-bit	O
load/store	O
architecture	O
with	O
separate	O
instruction	O
and	O
data	B-General_Concept
caches	I-General_Concept
(	O
Harvard	B-Architecture
architecture	I-Architecture
)	O
,	O
and	O
separate	O
data	O
and	O
address	O
buses	O
.	O
</s>
<s>
An	O
unusual	O
architectural	O
feature	O
is	O
that	O
both	O
integer	O
instructions	O
and	O
floating-point	O
instructions	O
use	O
the	O
same	O
register	B-General_Concept
file	I-General_Concept
.	O
</s>
<s>
This	O
requires	O
the	O
single	O
register	B-General_Concept
file	I-General_Concept
to	O
have	O
sufficient	O
read	O
and	O
write	O
ports	O
to	O
support	O
both	O
the	O
integer	O
execution	O
unit	O
and	O
the	O
floating-point	B-General_Concept
unit	I-General_Concept
.	O
</s>
<s>
The	O
first	O
implementation	O
of	O
the	O
88000	B-Architecture
ISA	O
was	O
the	O
MC88100	B-General_Concept
microprocessor	B-Architecture
,	O
which	O
included	O
an	O
integrated	O
FPU	B-General_Concept
.	O
</s>
<s>
Mated	O
to	O
this	O
was	O
the	O
MC88200	B-Architecture
MMU	B-General_Concept
and	O
cache	B-General_Concept
controller	O
.	O
</s>
<s>
The	O
idea	O
behind	O
this	O
splitting	O
of	O
duties	O
was	O
to	O
allow	O
multiprocessor	B-Operating_System
systems	O
to	O
be	O
built	O
more	O
easily	O
;	O
a	O
single	O
MC88200	B-Architecture
could	O
support	O
up	O
to	O
four	O
MC88100s	B-General_Concept
.	O
</s>
<s>
This	O
was	O
likely	O
to	O
be	O
another	O
major	O
reason	O
for	O
the	O
88000	B-Architecture
's	O
limited	O
success	O
.	O
</s>
<s>
This	O
was	O
later	O
addressed	O
by	O
the	O
superscalar	B-General_Concept
MC88110	B-Device
,	O
which	O
combined	O
the	O
CPU	O
,	O
FPU	B-General_Concept
,	O
MMU	B-General_Concept
,	O
and	O
L1	O
cache	B-General_Concept
into	O
a	O
single	O
package	O
.	O
</s>
<s>
An	O
additional	O
modification	O
,	O
made	O
at	O
the	O
behest	O
of	O
MIT	O
's	O
*	O
T	O
project	O
,	O
resulted	O
in	O
the	O
MC88110MP	O
,	O
including	O
on-chip	O
communications	O
for	O
use	O
in	O
multi-processor	B-Operating_System
systems	O
.	O
</s>
<s>
Ford	O
Motor	O
Company	O
had	O
planned	O
to	O
use	O
the	O
chips	O
,	O
so	O
they	O
were	O
offered	O
a	O
PowerPC	B-Architecture
design	O
as	O
a	O
replacement	O
,	O
which	O
they	O
accepted	O
.	O
</s>
<s>
Motorola	O
released	O
a	O
series	O
of	O
single-board	B-Device
computers	I-Device
,	O
known	O
as	O
the	O
MVME	B-Device
series	O
,	O
for	O
building	O
"	O
out	O
of	O
the	O
box	O
"	O
systems	O
based	O
on	O
the	O
88000	B-Architecture
,	O
as	O
well	O
as	O
the	O
Series	O
900	O
stackable	O
computers	O
employing	O
these	O
MVME	B-Device
boards	O
.	O
</s>
<s>
Unlike	O
tower	O
or	O
rack	B-Application
mount	I-Application
systems	O
,	O
the	O
Series	O
900	O
sat	O
on	O
top	O
of	O
each	O
other	O
and	O
connected	O
to	O
one	O
another	O
with	O
bus-like	O
cabling	O
.	O
</s>
<s>
The	O
only	O
widespread	O
use	O
would	O
be	O
in	O
the	O
Data	B-Device
General	I-Device
AViiON	I-Device
series	O
.	O
</s>
<s>
Encore	O
Computer	O
built	O
their	O
Encore-91	O
machine	O
on	O
the	O
m88k	B-Architecture
,	O
then	O
introduced	O
a	O
completely	O
ground-up	O
redesign	O
as	O
the	O
Infinity	O
90	O
series	O
,	O
but	O
it	O
is	O
unclear	O
how	O
many	O
of	O
these	O
machines	O
were	O
sold	O
.	O
</s>
<s>
Encore	O
moved	O
to	O
the	O
Alpha	B-Device
.	O
</s>
<s>
Tektronix	O
introduced	O
their	O
XD88	O
line	O
of	O
graphics	O
workstations	B-Device
in	O
April	O
1989	O
.	O
</s>
<s>
GEC	B-Device
Computers	I-Device
used	O
the	O
MC88100	B-General_Concept
to	O
build	O
the	O
GEC	O
4310	O
,	O
one	O
of	O
the	O
GEC	B-Device
4000	I-Device
series	I-Device
computers	O
,	O
but	O
issues	O
with	O
memory	O
management	O
meant	O
it	O
did	O
n't	O
perform	O
as	O
well	O
as	O
their	O
earlier	O
gate	O
array	O
based	O
and	O
Am2900	B-General_Concept
based	O
GEC	B-Device
4000	I-Device
series	I-Device
computers	O
.	O
</s>
<s>
The	O
BBN	B-Device
Butterfly	I-Device
model	O
TC-2000	O
used	O
the	O
MC88100	B-General_Concept
processor	O
,	O
and	O
scaled	O
to	O
512	O
CPUs	O
.	O
</s>
<s>
Linotype-Hell	O
used	O
the	O
88110	B-Device
in	O
their	O
"	O
Power	O
"	O
workstations	B-Device
running	O
the	O
DaVinci	B-Protocol
raster	B-Application
graphics	I-Application
editor	I-Application
for	O
image	O
manipulation	O
.	O
</s>
<s>
The	O
MC88110	B-Device
made	O
it	O
into	O
some	O
versions	O
of	O
a	O
never	O
released	O
NeXT	O
machine	O
,	O
the	O
NeXT	O
RISC	B-Architecture
Workstation	B-Device
,	O
but	O
the	O
project	O
was	O
canceled	O
along	O
with	O
all	O
NeXT	O
hardware	O
projects	O
in	O
1993	O
.	O
</s>
<s>
The	O
4-processor	O
OMRON	O
LUNA-88K	O
machines	O
from	O
Japan	O
used	O
the	O
m88k	B-Architecture
,	O
and	O
were	O
used	O
for	O
a	O
short	O
time	O
on	O
the	O
Mach	B-Operating_System
kernel	I-Operating_System
project	O
at	O
Carnegie	O
Mellon	O
University	O
.	O
</s>
<s>
In	O
the	O
early	O
1990s	O
Northern	O
Telecom	O
used	O
the	O
MC88100	B-General_Concept
and	O
MC88110	B-Device
as	O
the	O
central	O
processor	O
in	O
its	O
DMS	B-Protocol
SuperNode	O
family	O
of	O
telephone	O
switches	O
.	O
</s>
<s>
Alpha	B-Device
Microsystems	O
originally	O
planned	O
to	O
migrate	O
to	O
the	O
88K	B-Architecture
architecture	O
from	O
the	O
Motorola	B-Device
68000	I-Device
,	O
and	O
internally	O
created	O
a	O
machine	O
around	O
it	O
running	O
UNIX	B-Operating_System
System	I-Operating_System
V	I-Operating_System
,	O
but	O
it	O
was	O
later	O
scrapped	O
in	O
favour	O
of	O
later	O
68K	O
derivatives	O
.	O
</s>
<s>
NCD	O
used	O
the	O
88100	O
(	O
without	O
the	O
88200	O
)	O
in	O
its	O
88K	B-Architecture
X-Terminals	O
.	O
</s>
<s>
Dolphin	O
Server	O
,	O
a	O
spin-off	O
from	O
the	O
dying	O
Norsk	O
Data	O
,	O
built	O
servers	O
based	O
on	O
the	O
88k	B-Architecture
.	O
</s>
<s>
Virtuality	B-Application
used	O
the	O
MC88110	B-Device
in	O
the	O
SU2000	O
virtual	O
reality	O
arcade	O
machine	O
as	O
a	O
graphics	O
processor	O
,	O
with	O
one	O
MC88110	B-Device
per	O
screen	O
of	O
each	O
virtual	B-Device
reality	I-Device
headset	I-Device
.	O
</s>
<s>
In	O
the	O
embedded	O
computer	O
space	O
,	O
the	O
"	O
Tri-channel	O
VMS	O
Computer	O
"	O
in	O
the	O
F-15	O
S/MTD	O
used	O
three	O
88000s	B-Architecture
in	O
a	O
triply	O
redundant	O
computer	O
.	O
</s>
<s>
Motorola	O
released	O
its	O
own	O
UNIX	B-Operating_System
System	I-Operating_System
V	I-Operating_System
derivative	O
,	O
System	O
V/88	O
,	O
for	O
its	O
88000-based	O
systems	O
.	O
</s>
<s>
Data	B-Device
General	I-Device
AViiON	I-Device
systems	O
ran	O
DG/UX	B-Operating_System
.	O
</s>
<s>
OpenBSD	B-Operating_System
ports	O
exist	O
for	O
the	O
MVME	B-Device
systems	O
,	O
LUNA-88K	O
workstations	B-Device
,	O
and	O
Data	B-Device
General	I-Device
AViiON	I-Device
systems	O
.	O
</s>
<s>
At	O
least	O
one	O
unofficial	O
experimental	O
NetBSD	B-Device
port	O
exists	O
for	O
the	O
MVME	B-Device
systems	O
.	O
</s>
