On 20 July 2016 at 21:29, Paul Koning wrote:
> I don't remember the earlier ARM designs, but it was my impression that DEC's
> StrongARM was the one that made really large strides in low power (especially
> power per MHz of clock speed). Interestingly enough, StrongARM was one of
> the few (an
While fascinating... it's not on topic. Lets wrap up this thread :)
J
On 21/07/2016 13:38, Liam Proven wrote:
On 20 July 2016 at 21:29, Paul Koning
wrote:
I don't remember the earlier ARM designs, but it was my impression
that DEC's StrongARM was the one that made really large strides in
low power
Hmm. That wasn't my impression at the time, no.
The big deal w
On 21 July 2016 at 15:24, Pete Turnbull wrote:
>
> Yes and no. StrongARM was even lower power as well as faster. If you're
> suggesting that that's just evolution due to things like reduced process
> size, I possibly agree. But a StrongARM has many times as many transistors
> as an ARM3 (for ex
> On Jul 21, 2016, at 8:38 AM, Liam Proven wrote:
>
> On 20 July 2016 at 21:29, Paul Koning wrote:
>> I don't remember the earlier ARM designs, but it was my impression that
>> DEC's StrongARM was the one that made really large strides in low power
>> (especially power per MHz of clock speed)
Peter Corlett writes:
> IMO, it's the predicated instructions that is ARM's special sauce and
> the real innovation that gives it a performance boost. Without those,
> it'd be just a 32 bit wide 6502 knockoff.
I have both the ARM and the 6502 instruction sets very fresh in my mind
right now. I d
So the online set of MS11-P Field Maintainence prints is missing page 3 of the
prints (data drivers page). Does anyone have an original hard-copy, and can
supply a scan of the missing page? Thanks (in advance, and hopefully :-).
Noel
On 21 July 2016 at 16:45, Lars Brinkhoff wrote:
> I have both the ARM and the 6502 instruction sets very fresh in my mind
> right now. I don't see how the ARM could be a 6502 knockoff, even
> without that sauce. Care to explain in more detail?
This is a matter of historical record, AIUI.
http
I should have access to an original (somewhere..)
There are also some scans that have come in over the past couple of months I
can check
On 7/21/16 8:08 AM, Noel Chiappa wrote:
> So the online set of MS11-P Field Maintainence prints is missing page 3 of the
> prints (data drivers page). Does any
So I'm trying to work out how the PDP-11/24 memory works - in particular, how
the memory slots in the backplane can also support SPC devices.
Chapter 5 of the -11/24 Technical Manual does not help - irritatingly! It
spends a lot of time talking about the CPU's memory mapping (well documented
elsew
> So I'm trying to work out how the PDP-11/24 memory works - in particular, how
> the memory slots in the backplane can also support SPC devices.
>
> Chapter 5 of the -11/24 Technical Manual does not help - irritatingly! It
> spends a lot of time talking about the CPU's memory mapping (well docum
On 7/21/16 9:28 AM, Al Kossow wrote:
> There are also some scans that have come in over the past couple of months I
> can check
>
It's there, I'll upload it now and the mirrors should have it in two hours
> From: Al Kossow
> It's there, I'll upload it now
Great; thanks!
Noel
The only ones worth using that I'm aware of are Scream Tracker and Impulse
Tracker and neither was around in the 16 bit ISA days pre-386, IIRC. I
doubt Scream Tracker would be able to function on a 286 anyhow. It puts a
486DX2/66 at about 50% CPU load, from my recollection. The Amiga trackers
were
> From: Tony Duell
> If it's anything like the 11/44 ... the memory bus is carried on the A
> and B connectors, the peripheral bus on the C,D,E,F connectors.
I have yet to totally grok the -11/44, but the documentation indicates the
slots for memory are memory only (i.e. EUB on the A
>> If it's anything like the 11/44 ... the memory bus is carried on the A
>> and B connectors, the peripheral bus on the C,D,E,F connectors.
> I have yet to totally grok the -11/44, but the documentation indicates the
> slots for memory are memory only (i.e. EUB on the A/B connectors). Ar
On Thu, Jul 21, 2016 at 12:27 PM, Noel Chiappa wrote:
> Alas, there seems to be no KT-24 prints online
I have an 11/24 with KT-24. I bought the KT-24 and maybe some RAM
from Terry Kennedy long, long ago (1986?) so I could stuff more than
256K in my machine and run 2BSD on it. I was successful m
I'm ul'ing it now
On 7/21/16 9:27 AM, Noel Chiappa wrote:
> Alas, there seems to be no KT-24 prints online
On Wed, Jul 20, 2016 at 09:02:41PM +0200, Liam Proven wrote:
> On 19 July 2016 at 17:04, Peter Corlett wrote:
[...]
>> RISC implies a load-store architecture, so that claim is redundant.
> Could you expand on that, please? I think that IKWYM but I'm not sure.
A load-store architecture is one wher
In ARM, *all* instructions can be predicated.
Until recently.
> On Jul 21, 2016, at 4:22 PM, Peter Corlett wrote:
>
> On Wed, Jul 20, 2016 at 09:02:41PM +0200, Liam Proven wrote:
>> On 19 July 2016 at 17:04, Peter Corlett wrote:
> [...]
>>> RISC implies a load-store architecture, so that claim is redundant.
>> Could you expand on that, please? I think tha
> On Jul 21, 2016, at 4:22 PM, Peter Corlett wrote:
>
> ...
> A predicated instruction is one that does or does not execute based on some
> condition. CISC machines generally use condition codes (aka flags), and only
> have predicated branch instructions. Branch-not-equal, that kind of things.
>
Liam Proven writes:
> On 21 July 2016 at 16:45, Lars Brinkhoff wrote:
>> I have both the ARM and the 6502 instruction sets very fresh in my mind
>> right now. I don't see how the ARM could be a 6502 knockoff, even
>> without that sauce. Care to explain in more detail?
>
> This is a matter of hi
Possibly the rarest Apple 1 ever is up for auction.
The seller is working through CharityBuzz, which will display the
computer at VCF West next month.
CB's auction site: http://apple1.charitybuzz.com/
MacRumors covered it:
http://www.macrumors.com/2016/07/21/charitybuzz-auctioning-unique-cel
On 21/07/2016 15:12, Liam Proven wrote:
On 21 July 2016 at 15:24, Pete Turnbull wrote:
But a StrongARM [ ... ] initially ran 3 times as
fast [ ... ] and eventually SA-110 ran to over 200MHz) yet
uses less power.
OK. I think the first announced StrongARM, the SA110, was announced as
running
On Thu, 2016-07-21 at 17:20 +0200, Liam Proven wrote:
> On 21 July 2016 at 16:45, Lars Brinkhoff wrote:
> > I have both the ARM and the 6502 instruction sets very fresh in my mind
> > right now. I don't see how the ARM could be a 6502 knockoff, even
> > without that sauce. Care to explain in mor
On 21 July 2016 at 22:22, Peter Corlett wrote:
> On Wed, Jul 20, 2016 at 09:02:41PM +0200, Liam Proven wrote:
>> On 19 July 2016 at 17:04, Peter Corlett wrote:
> [...]
>>> RISC implies a load-store architecture, so that claim is redundant.
>> Could you expand on that, please? I think that IKWYM b
On 21 July 2016 at 23:26, Pete Turnbull wrote:
> Um, isn't that pretty much what I wrote? I'm pretty sure the first
> batch(es) weren't rated for the full 200.
I don't know; I'm basing this comment mainly on Wikipedia.
>
> Hmm. Never seen one like that. None of the ones I've seen in real lif
On 22/07/2016 00:07, "Liam Proven" wrote:
>> There were only a few
>> made. They were used internally during development - hence the podule to
>> connect it to a Beeb, which provided the I/O early on - and in the later
>> stages before the Archimedes launch in 1987, several were loaned to softwa
> On Jul 21, 2016, at 7:07 PM, Liam Proven wrote:
>
> ...
>> They're all plastic pin grid array
>> packages. No heatsink at all. Nor does the datasheet for the PQFP show
>> anything related to a heatsink. It also shows a PLCC version; no heatsink
>> there either, and again I've never seen on
On 07/21/2016 04:56 PM, Paul Koning wrote:
> PLCCs have fairly limited lead counts; they were common for 44 lead
> packages, and perhaps a bit more.
I"ve probably got more 68 pin PLCCs than anything else; I've got various
ICs in 84 pin PLCC, including a some CPLDs and CPUs (e.g., 80C188EB).
The co
On 7/21/2016 3:42 PM, Evan Koblentz wrote:
Possibly the rarest Apple 1 ever is up
for auction.
The seller is working through
CharityBuzz, which will display the
computer at VCF West next month.
CB's auction site:
http://apple1.charitybuzz.com/
MacRumors covered it:
http://www.macrumor
On 7/20/2016 10:42 AM, Pete Turnbull wrote:
On 20/07/2016 16:44, Paul Koning wrote:
It is true that a few RISC architectures are not very scrutable.
Itanium is a notorious example, as are some VLIW machines. But many
RISC machines are much more sane. MIPS and ARM certainly are no
problem for
The article doesn't appear to say, but does anyone know where this Apple
came from?
Go to http://apple1.charitybuzz.com/ and click "provenance".
"Original owner believed to be an early Apple employee ". You have the
current owner who has a receipt from the previous owner who had said he got
it from "maybe" an Apple employee back in 1977.
-Original Message-
From: Evan Koblentz
Sent: Thursday, July 21, 2016 10:26 PM
To: General
I see that someone has picked it up via Buy It Now. No,
it wasn't me.
mcl
> On Jul 21, 2016, at 6:53 PM, ben wrote:
>
> On 7/20/2016 10:42 AM, Pete Turnbull wrote:
>> On 20/07/2016 16:44, Paul Koning wrote:
>>
>>> It is true that a few RISC architectures are not very scrutable.
>>> Itanium is a notorious example, as are some VLIW machines. But many
>>> RISC machines
On 7/21/2016 9:34 PM, Guy Sotomayor Jr wrote:
On Jul 21, 2016, at 6:53 PM, ben wrote:
On 7/20/2016 10:42 AM, Pete Turnbull wrote:
On 20/07/2016 16:44, Paul Koning wrote:
It is true that a few RISC architectures are not very scrutable.
Itanium is a notorious example, as are some VLIW machin
> On Jul 21, 2016, at 8:55 PM, ben wrote:
>
> On 7/21/2016 9:34 PM, Guy Sotomayor Jr wrote:
>>
>>> On Jul 21, 2016, at 6:53 PM, ben wrote:
>>>
>>> On 7/20/2016 10:42 AM, Pete Turnbull wrote:
On 20/07/2016 16:44, Paul Koning wrote:
> It is true that a few RISC architectures are
I need to find a place to ask questions about scanners (scanner in the
sense of an Epson Perfection 1260 flatbed scanner, not in the sense of
radios).
Several searches have yielded only radio-type scanner sites (or dead links).
Does anyone here know of newsgroups or discussion boards for scanners
On 07/21/2016 09:29 PM, hollan...@ccountry.net wrote:
> Does anyone here know of newsgroups or discussion boards for
> scanners?
One that I have in my bookmarks is the DIY book scanner forum:
http://diybookscanner.org/forum/
But if you search using the phrase "document scanner", you'll probabl
On 7/21/2016 9:44 PM, Chuck Guzis wrote:
On 07/21/2016 09:29 PM, hollan...@ccountry.net wrote:
Does anyone here know of newsgroups or discussion boards for
scanners?
One that I have in my bookmarks is the DIY book scanner forum:
http://diybookscanner.org/forum/
But if you search using the
Is there anyone with documents on the Nova 3 front panel, and what
drives it? It has some number of custom DG chips, which hopefully are
good if I want to try to fire it up to play, but am interested in that
on good authority there are 28v incandescent lamps.
A friend has an Eclipse front pan
> An occasionally forgotten feature is that ALU operations also have a S-bit to
> indicate whether they should update the flags based on the result, or leave
> them alone.
Power ISA also has this feature (the so-called "dot" instructions). It also
has special forms of instructions for setting the
Liam Proven writes:
> Peter Corlett wrote:
>> In ARM, *all* instructions can be predicated. Because instructions
>> are 32 bits wide, it has the luxury of allocating four bits to select
>> from one of 16 possible predicates based on the CPU flags.
>
> If I understand it correctly, this caused consi
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