> On Mar 1, 2018, at 8:54 PM, Noel Chiappa via cctalk
> wrote:
>
>> From: Charles Dickman
>
>> So if the I/O page is completely (all processor modes) unmapped is
>> there any way to recover besides a power cycle? Does the RESET
>> instruction disable the MMU?
>
> Interesting questions!
>
> T
From: Dennis Boone via cctalk
Sent: Thursday, March 01, 2018 2:50 PM
>> Does anyone have an archive of classiccmp that goes back to the 90's?
>> If so, could I ask you to "hunt down" an old message of mine? I once
>> wrote a "reminiscence" of connecting to the ARPANET when I was a kid
>> that I w
There will be three awesome keynotes for VCF East this spring.
- Friday: our own Bill Dromgoole who'll talk about restoring the VCFed
UNIVAC mainframe.
- Saturday: Don Eyles (NASA contractor who hacked the Apollo Guidance
Computer to save the Apollo 14 mission)
- Sunday: Dave Walden, who p
Hello Folks.
Forgive me for the intrusion. I know a good soul in Brisbane area in
Queensland, Australia who is looking for some sort of apprenticeship in
electronics or communications/networking. I thought I would ask here in
case this message reaches some of you blokes down there that might be
On Mar 1, 2018, at 2:18 PM, William Sudbrink via cctech wrote:
> Does anyone have an archive of classiccmp that goes back to the 90's? If
> so, could I ask you to "hunt down" an old message of mine? I once wrote a
> "reminiscence" of connecting to the ARPANET when I was a kid that I was
> rathe
> From: Charles Dickman
> So if the I/O page is completely (all processor modes) unmapped is
> there any way to recover besides a power cycle? Does the RESET
> instruction disable the MMU?
Interesting questions!
The CPU manuals don't say, about the RE$ET; I just tried it on the /
I don't, but I do have a memory board from one if you want it. Rather
dirty.
On Tue, Feb 27, 2018 at 2:35 AM, Ian via cctalk
wrote:
> Folks, sorry for the Sun spam.
>
>
> Everything was working in my newly acquired 3/260, and the monitor is even
> starting to shape up.
>
> It was a gorgeous mac
On Thu, Mar 1, 2018 at 9:04 AM, Paul Koning via cctalk
wrote:
> That's true when the MMU is disabled; if so it supplies 1 bits for the upper
> bits for page 7,
> and zeroes for the other pages. But if the MMU is enabled, all mapping goes
> through its mapping
> registers, and page 7 is no longe
Bingo! Thanks a lot!
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Dennis
Boone via cctalk
Sent: Thursday, March 01, 2018 5:50 PM
To: cctalk@classiccmp.org
Subject: Re: Old Classiccmp archive
> Does anyone have an archive of classiccmp that goes bac
> Does anyone have an archive of classiccmp that goes back to the 90's?
> If so, could I ask you to "hunt down" an old message of mine? I once
> wrote a "reminiscence" of connecting to the ARPANET when I was a kid
> that I was rather pleased with. Unfortunately, I seem to have lost
> it in a
> On Mar 1, 2018, at 2:18 PM, William Sudbrink via cctalk
> wrote:
>
> Does anyone have an archive of classiccmp that goes back to the 90's? If
> so, could I ask you to "hunt down" an old message of mine? I once wrote a
> "reminiscence" of connecting to the ARPANET when I was a kid that I was
Does anyone have an archive of classiccmp that goes back to the 90's? If
so, could I ask you to "hunt down" an old message of mine? I once wrote a
"reminiscence" of connecting to the ARPANET when I was a kid that I was
rather pleased with. Unfortunately, I seem to have lost it in a disk crash
(a
>From Dennis Boone
> Jonathan Engdahl's homepage shows his email
> address. His changes are explained at the page you linked.
Yes indeed - as I (meant to have) said, no reply to his email listed there.
> The 32MB limit arises due to the use of 16 bit block number fields in
> the protocol.
I und
+1 on Pak Mail too.
Marc
> On Feb 27, 2018, at 12:12 PM, Chuck Guzis via cctalk
> wrote:
>
>> On 02/27/2018 11:37 AM, Ed Sharpe wrote:
>> *In my case lady worked at a warehouse and had her people palate
>> and strap the 3 ttys! saved $$ Pack mail is great though to pack
>> stuff
On Thu, Mar 1, 2018 at 12:56 PM, Ethan via cctalk
wrote:
> That is a very standard IDE drive that you can replace with just about any
>> IDE drive you can find, at least to get things up and running. The
>> controller won't support the faster transfer speeds of later drives, and
>> may not suppor
That is a very standard IDE drive that you can replace with just about
any IDE drive you can find, at least to get things up and running. The
controller won't support the faster transfer speeds of later drives, and
may not support the full capacity of the larger drives, but the newer
drives sho
Noel;
Thanks for the exact info I was looking for! I knew there was a text
listing of the addresses and what devices occupied those addresses.
Going thru the manuals one by one was way too tedious. Thanks for
explaining the 'bank switching' that is done to accommodate the larger
boot roms.
- Original Message -
> From: "devin davison"
> To: "Jon Auringer"
> Cc: "General Discussion: On-Topic and Off-Topic Posts"
> Sent: Thursday, March 1, 2018 12:51:14 PM
> Subject: Re: Picked up a couple 386 machines
>
> It is the 2500 SX. The drive is a quantum prodrive LPs 105 AT.
> The
It is the 2500 SX. The drive is a quantum prodrive LPs 105 AT.
The drive spins up but is not recognized.
On Thu, Mar 1, 2018 at 9:43 AM, Jon Auringer wrote:
> Hi Devin,
>
> - Original Message -
>> From: "devin davison via cctalk"
>> To: "General Discussion: On-Topic and Off-Topic Posts"
Hi Devin,
- Original Message -
> From: "devin davison via cctalk"
> To: "General Discussion: On-Topic and Off-Topic Posts"
> Sent: Wednesday, February 28, 2018 5:05:03 PM
> Subject: Picked up a couple 386 machines
>
> The tandy 2500 is pretty nice as well, it has a cdrom and a hard dri
NICE system !!
I would have love it but hadn't room for it too sad :-((
Where did in goes ??? ( Which country, in Europ, I think ? )
Gerard
> On Mar 1, 2018, at 6:12 AM, allison via cctalk wrote:
>
> ... and the MMU also
> understands that peripherals live in that physical space be it 16/18/22
> bit memory map.
That's true when the MMU is disabled; if so it supplies 1 bits for the upper
bits for page 7, and zeroes for the other p
> On many of the PDP-11s that page is signified by asserting BBS7
QBUS machines only; the UNIBUS has no equivalent signal.
> FYI the microPDP-11/53 is the 11/23+ cpu card
Err, no; according to the "MicroPDP11/53 System Supplement Manual"
(AZ-GPTAA-MC), pg. 3-1, the CPU card in the /53 is
> From: Douglas Taylor
> Is there a document that describes the bank 7 memory page and what
> addresses are reserved for what?
Here's one I collated from a large number of DEC manuals:
http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/UNIBUS_Registers.txt
(Ignore the name, it applies to QB
On 02/28/2018 08:15 PM, Douglas Taylor via cctalk wrote:
> Is there a document that describes the bank 7 memory page and what
> addresses are reserved for what? I think I've seen this before but
> can't seem to put my hands on it.
>
> Another question, bootstrap is reserved for 173000, how many wo
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