12 Nov
2003
12 Nov
'03
8:36 a.m.
You left out
HCF - Halt and Catch Fire
Larry
JGL - Jump and Get Lost
BFN - Branch for No Reason
SIT - Shift if Tuesday
RUB - Rotate Until Barf
SFR - Set Flags at Random
NMO - Non Maskable Overrun
DAC - Divide and Conquer
LMB - Logical Maybe
EBS - Emit Burning Smell
LCM - Loop Clear all Memory
and one of my all-time favorites
POF - Power On Fail
Cheers
John
11:25 a.m.
On Wed, 12 Nov 2003, Larry Laurel wrote:
You left out
HCF - Halt and Catch Fire
Let's not forget:
WBT - Water Binary Tree
BBW - Branch Both Ways
BEW - Branch Either Way
RWD - Rewind Disk
Peace... Sridhar
JGL - Jump and Get Lost
BFN - Branch for No Reason
SIT - Shift if Tuesday
RUB - Rotate Until Barf
SFR - Set Flags at Random
NMO - Non Maskable Overrun
DAC - Divide and Conquer
LMB - Logical Maybe
EBS - Emit Burning Smell
LCM - Loop Clear all Memory
and one of my all-time favorites
POF - Power On Fail
Cheers
John
2:53 p.m.
vance(a)neurotica.com wrote:
Let's not forget:
[...]
BBW - Branch Both Ways
This instruction is especially useful, as it allows the software to
directly implement an NFA (nondeterministic finite automaton) without
having to transform it into a DFA (deterministic). NFAs are used for
regular expression matching and lexical analysis, but the transformation
to a DFA as needed on processors without the BBW instruction can be
expensive in both time and memory.
On a more serious note, many state-of-the-art processors do sort of
implement "branch both ways" in the sense that they do speculative
execution of both paths then discard the results on one path once the
condition is resolved. A limited form of speculative execution was
used by the IBM 7030 Data Processing System (AKA "Stretch"), introduced
in 1961. I'm not aware of any other production systems with speculative
execution that are on-charter for this list (e.g., introduced before
12-nov-1993).
Eric
4 p.m.
Eric Smith wrote:
This instruction is especially useful, as it allows the software to
directly implement an NFA (nondeterministic finite automaton) without
having to transform it into a DFA (deterministic). NFAs are used for
regular expression matching and lexical analysis, but the transformation
to a DFA as needed on processors without the BBW instruction can be
expensive in both time and memory.
On a more serious note, many state-of-the-art processors do sort of
implement "branch both ways" in the sense that they do speculative
execution of both paths then discard the results on one path once the
condition is resolved. A limited form of speculative execution was
used by the IBM 7030 Data Processing System (AKA "Stretch"), introduced
in 1961. I'm not aware of any other production systems with speculative
execution that are on-charter for this list (e.g., introduced before
12-nov-1993).
Eric
Notice to all: I'm claiming an extra geek point because this entire message
makes perfect sense to me. --Patrick
11:04 p.m.
> Notice to all: I'm claiming an extra geek
point because this entire
> message
> makes perfect sense to me. --Patrick
OK, then I claim two extra geek points for having
written it.
Do I get also one for not only understanding the original Post
but also the meta discusion about ?
Gruss
H.
--
VCF Europa 5.0 am 01./02. Mai 2004 in Muenchen
http://www.vcfe.org/
13 Nov
13 Nov
10:33 a.m.
I detect a conspiracy here - anyone else understand it ?
Don't let them bullsh*t you.
Geoff.
----- Original Message -----
From: "Eric Smith" <eric(a)brouhaha.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk(a)classiccmp.org>
Sent: Thursday, November 13, 2003 8:29 AM
Subject: RE: more talking to the press.
Notice to all:
I'm claiming an extra geek point because this entire
message
makes perfect sense to me. --Patrick
OK, then I claim two extra geek points for having written it.
14 Nov
14 Nov
1:26 a.m.
On Fri, 2003-11-14 at 08:33, Geoffrey Thomas wrote:
I detect a conspiracy here - anyone else understand it
?
Well unfortunately, yes I do. I did spend a year of my life studying
this sort of thing. This was before the Internet, so I had a life to
waste :-)
Don't let them bullsh*t you.
:-)
--
Huw Davies | e-mail: Huw.Davies(a)kerberos.davies.net.au
Melbourne | "If soccer was meant to be played in the
Australia | air, the sky would be painted green"
13 Nov
13 Nov
2:38 a.m.
On Thu, 2003-11-13 at 12:53, Eric Smith wrote:
I'm not aware of any other production systems
with speculative
execution that are on-charter for this list (e.g., introduced before
12-nov-1993).
Maybe either MIPS or Alpha?
--
Huw Davies | e-mail: Huw.Davies(a)kerberos.davies.net.au
Melbourne | "If soccer was meant to be played in the
Australia | air, the sky would be painted green"
7557
days inactive
7559
days old
10 comments
8 participants
participants (8)
-
bfranchuk＠jetnet.ab.ca -
eric＠brouhaha.com -
geoffreythomas＠onetel.net.uk -
Hans.Franke＠mch20.sbs.de -
huw.davies＠kerberos.davies.net.au -
larry＠laurelnet.com -
patrick＠evocative.com -
vance＠neurotica.com