31 Aug
2006
31 Aug
'06
4:17 p.m.
On Thursday 31 August 2006 02:56 pm, Alexey Toptygin wrote:
On Wed, 30 Aug 2006, Roy J. Tellason wrote:
I'm vaguely remembering something about what chip that was, but now I
can't remember what it was called. Ah, would that have been the
"transputer", maybe?
No, transputers are 16 or 32 bit RISC chips, some with 64 bit IEEE
floating point either in hardware or emulated via microcoded instructions.
Their best features are: 4 async 2-pair 5, 10 or 20MHz full duplex
communication links on die, a minimal ammount of RAM on die, and the
ability to be booted and debugged over any of the 4 links. Thus, you can
build a parallel "computing surface" with just the transputer chips plus
power and clock sources. They also have a fairly flexible RAM/ROM
interface, but it's entirely optional. Finally, the whole family is
machine language compatible (later members only extended the instruction
set). In theory this let you mix family members in a machine, but
unfortunately there was no "what family member am I running on"
instruction.
Which makes me wonder what would happen if you fed it an extended instruction
that it didn't know how to deal with.
I dunno, maybe they were just out in roughly the same time frame, or maybe
I've just got such a cluttered brain that it's all running together lately...
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
Wasn't that "The Connection Machine"?
Nope. Connection Machines were made by Thinking Machines, Inc., and
they don't use Pentiums. They use gobs (up to something like 16k) of
proprietary processors.