Hmmm, anyone out there who understands FreeBSD termios(4) .
Can't believe that FreeBSD has no baudrate > 38400 !
Joerg
On Fri, Jan 20, 2017 at 8:51 PM, Jörg Hoppe wrote:
If you like to have a look (and play beta tester):
Docs on http://retrocmp.com/tools/tu58fs
C sources and makefile on htt
I posted yesterday about my attempt to weld a IBM PC keyboard to my Compaq
model 1 - the 'luggable'.
Well, it did not work, even though I saw clock and data on both Compaq and IBM
keyboards that looked the same. I did not dig into the decoding, but somehow
they are different.
OK so I alread
On 24/01/2017 06:06, "Tony Duell" wrote:
>>
>> and it's 0.6ohm max.
>
> Are you telling me that if you put 2 logic analyser inputs on 2 points on the
> same trace (which tests as continuous with an ohmmeter) that said 2 LA
> channels don't show the same thing? If so, the LA needs repairing!
..
> Can't believe that FreeBSD has no baudrate > 38400 !
>> serial.c:443:44: error: use of undeclared identifier 'B300'
>> serial.c:444:16: error: use of undeclared identifier 'B250'
>> serial.c:445:16: error: use of undeclared identifier 'B200'
At least some systems don't use B con
Chuck Guzis asked on Mon, 23 Jan 2017 22:00:15 -0800
> Is there a "recursive" emulator setup wherein one machine emulates
> another one...where the final emulation is for the original hardware?
In 1988 I designed an ARM2 based computer (my Merlin 4, which was only
built in 1992 when the ARM2 was a
I've been working on documenting the hardware in the early Altos x86 machines
and it would be nice to find a copy of the eproms from a 586.
I tried asking Dave Dunfield about this, but never got a reply. Has anyone
heard anything from him lately?
I know Eric Smith was trying to contact him a few
On 2017-01-24 2:46 PM, Jecel Assumpcao Jr. wrote:
Chuck Guzis asked on Mon, 23 Jan 2017 22:00:15 -0800
Is there a "recursive" emulator setup wherein one machine emulates
another one...where the final emulation is for the original hardware?
In 1988 I designed an ARM2 based computer (my Merlin 4
> Chuck Guzis asked on Mon, 23 Jan 2017 22:00:15 -0800
>> Is there a "recursive" emulator setup wherein one machine emulates
>> another one...where the final emulation is for the original hardware?
An example where that could be useful is in validating an emulation. I did
that recently: running
On 1/24/17 12:24 AM, Randy Dawson wrote:
> take a look in you junk bin for a IBM PC compatible keyboard, it worked for
> me.
>
The BTC 5339R is a bit more common on eBay and is foam and foil
https://geekhack.org/index.php?topic=77030.msg1935636#msg1935636
I didn't see it anywhere on geekhack,
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow
Sent: Tuesday, January 24, 2017 10:16 AM
To: cctalk@classiccmp.org
Subject: Re: Compaq foam rot keyboard SOLVED
On 1/24/17 12:24 AM, Randy Dawson wrote:
> take a look in you junk bin for a IBM
On 24/01/2017 16:46, Jecel Assumpcao Jr. wrote:
In 1988 I designed an ARM2 based computer (my Merlin 4, which was only
built in 1992 when the ARM2 was already obsolete) and wondered if it
could emulate a PC fast enough to be usable. I had written an ARM
assembler and a friend did an ARM emulator
On 01/23/2017 11:46 PM, Chuck Guzis wrote:
Bob Bener has written a short squib about how the 7070 came into being:
http://www.bobbemer.com/BIRTH.HTM
Funny, in a tragic way.
WOW! But, at the end, he says the 707x is a 6-bit machine.
It seems, in fact, that the 707x was a WORD machine, not a
On 01/24/2017 12:00 AM, Chuck Guzis wrote:
On 01/23/2017 09:42 PM, Jon Elson wrote:
On 01/23/2017 07:45 PM, Jon Elson wrote:
This blog seems to indicate that there is NO 7074, but an emulator
running on 370 hardware.
http://nikhilism.com/post/2016/systems-we-love/
This makes a lot more sense,
On 01/24/2017 01:33 AM, Jörg Hoppe wrote:
Hmmm, anyone out there who understands FreeBSD termios(4) .
Can't believe that FreeBSD has no baudrate > 38400 !
Hmmm, I use minicom all the time at 115200 baud. Depending
on what actual serial hardware you have, this may be a
hardware limit. If it
> On Jan 23, 2017, at 8:33 PM, Paul Koning wrote:
>
>>
>> On Jan 23, 2017, at 5:09 PM, Toby Thain wrote:
>>
>> On 2017-01-23 6:55 PM, Paul Koning wrote:
>>>
On Jan 23, 2017, at 3:52 PM, Chuck Guzis wrote:
...
It's just that I bridle a bit when hearing the young 'uns ref
On 01/24/2017 09:25 AM, Jon Elson wrote:
> I wonder how late IBM still supported the 7074 microcode emulation?
> And, of course, anybody could write a software-level emulation for
> the 7074, in IBM or other hardware. One reason maybe to not run simh
> on a PC is if the data comes in on old mag t
Am 24.01.2017 um 14:26 schrieb Mouse:
Can't believe that FreeBSD has no baudrate > 38400 !
serial.c:443:44: error: use of undeclared identifier 'B300'
serial.c:444:16: error: use of undeclared identifier 'B250'
serial.c:445:16: error: use of undeclared identifier 'B200'
At least som
Jörg Hoppe wrote:
>
> Hmmm, anyone out there who understands FreeBSD termios(4) .
> Can't believe that FreeBSD has no baudrate > 38400 !
>
> Joerg
termios.h:#include
/usr/include/sys/_termios.h:
[..]
/*
* Standard speeds
*/
#define B0 0
#define B50 50
#define B75 75
#define B11
Toby Thain wrote:
> On 2017-01-24 2:46 PM, Jecel Assumpcao Jr. wrote:
> >[PC emulator on ARM emulator on PC]
>
> Was this a JIT emulator (like Apple's later versions of 68K emulation),
> or a simple interpreter?
It was a simple interpreter. I had been aware of the 1984 JIT
implementation of Smal
I need the schematics. I'm not sure I trust all those "manual" sites on the
web that want to sell you a PDF for $15.
My monitor seems to be acting up.
Thanks in advance,
Cheers,
Corey
corey cohen
uǝɥoɔ ʎǝɹoɔ
On 24/01/2017 22:19, Jecel Assumpcao Jr. wrote:
Pete Turnbull wrote:
Interesting. You know that Acorn had a software PC emulator for the
Archimedes called PCEmu, on sale in late 1987?
I don't remember if I was aware of this at that time, but it is very
likely and that could have been the ins
On 01/24/2017 01:50 PM, Pete Turnbull wrote:
>> Many people think Intel was stupid to have the 80186 be incompatible
>> with the PC but they forget that this processor was practically finished
>> by the time the PC came out and was launched just a few months later,
We started getting samples of
They might have used the 80188.
Dwight
From: cctalk on behalf of Chuck Guzis
Sent: Tuesday, January 24, 2017 2:27:47 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: recursive emulation
On 01/24/2017 01:50 PM, Pete Turnbull wrote:
>> Man
On 01/24/2017 03:05 PM, dwight wrote:
> They might have used the 80188.
Maybe, but the 80188 was even later than the 186. Given the integrated
peripheral support on the 186, however, it probably wouldn't have
economized much on the support circuitry to use an 8 bit BIU.
--CHuck
Hi Corey,
Is it possible that the Sanyo monitor is a rebadged Hitachi VM-909 monitor
(or the other way around)? The Hitachi monitor user manual is only two
pages, front and back but I also have schematic diagram for it too. The
Hitachi monitor originally came as an option with the Polymorphic 88
On Tue, Jan 24, 2017 at 3:27 PM, Chuck Guzis wrote:
> Somewhere along the line, Intel's much ballyhooed 432 platform quietly
> sank under the waves (Micro-mainframe). It was a multi-chip set and
> hideously expensive.
>
It actually wasn't *that* expensive. Well, the development system was
hide
On 01/24/2017 05:49 PM, Eric Smith wrote:
> It actually wasn't *that* expensive. Well, the development system
> was hideously expensive, but the chips weren't. The General Data
> Processor (GDP, the "main" processor) was two chips, which together
> cost about $100 in modest quantities, and the I
On Tue, Jan 24, 2017 at 6:59 PM, Chuck Guzis wrote:
> Admittedly, this was before the 432 was released in any form, but I
> recall "Fast Eddie" our Intel sales guy quoting us about $1K for a
> chipset--this would have been about 1982. That was expensive in
> anyone's book.
>
The 432 chips were
On 01/24/2017 12:38 PM, Chuck Guzis wrote:
Was the 7070 IBM's first machine with a wire-wrapped
backplane? --Chuck
No, all SMS machines used similar wire wrapping. So, I
think that goes back to the 7030 (Stretch)
and probably 1620, 1401 and others of that time. I'm pretty
sure those preceded
On 01/24/2017 06:13 PM, Eric Smith wrote:
> The 432 chips were sampling in early 1981, and in limited production
> in mid-to-late 1981. (They were never in more than limited
> production.) They weren't $1000 even then. Your salesman was either
> including the cost of a lot of other components he
Never mind. I took a picture of the internals of both and they are NOT at
all the same, unfortunately.
http://vintagecomputer.ca/sanyo-vm-4209-vs-hitachi-vm-909/
Good luck in finding the Sanyo schematics. I'd love to have a copy myself.
Santo
On Tue, Jan 24, 2017 at 8:32 PM, Santo Nucifora
w
On 01/24/2017 06:37 PM, Jon Elson wrote:
> On 01/24/2017 12:38 PM, Chuck Guzis wrote:
>> Was the 7070 IBM's first machine with a wire-wrapped backplane?
>> --Chuck
> No, all SMS machines used similar wire wrapping. So, I think that
> goes back to the 7030 (Stretch) and probably 1620, 1401 and othe
Never mind. I took a picture of the internals of both and they are NOT at
all the same, unfortunately.
http://vintagecomputer.ca/sanyo-vm-4209-vs-hitachi-vm-909/
Good luck in finding the Sanyo schematics. I'd love to have a copy myself.
Santo
Step #1. Replace all electrolytics?
--
Ethan O'To
On 01/24/2017 08:57 PM, Chuck Guzis wrote:
On 01/24/2017 06:37 PM, Jon Elson wrote:
On 01/24/2017 12:38 PM, Chuck Guzis wrote:
Was the 7070 IBM's first machine with a wire-wrapped backplane?
--Chuck
No, all SMS machines used similar wire wrapping. So, I think that
goes back to the 7030 (Stret
On 01/24/2017 07:55 PM, Jon Elson wrote:
> Well, they were all built using SMS card technology, and a few
> pictures seem to show very similar backplane setup. I didn't know the
> 7070 was the first of that generation. While the first 7030 was
> delivered after the 7070, development of the Stretc
On 01/24/2017 11:14 PM, Chuck Guzis wrote:
Given that the whole SMS thing was the common denominator
among the 7000 and 1400 and 1620 lines, it's hard to say
who was first. But the 7070 was first delivered. --Chuck
Which is damned amazing, as the 7070 was a VERY ambitious
machine. 30,000 trans
On 01/24/2017 10:01 PM, Jon Elson wrote:
> And, the 7074 was a serious computer, given the vintage. Either 4 or
> 6 us core cycle time was QUITE good in 1961 or so. 10 us
> instruction execution time was pretty decent.
I find the whole period amazing. Consider that the 709 was introduced
in m
Hey folks,
I've gotten to the part of a PDP-11/45 restore I’ve been working on where I
need to run a Unibus cable between the CPU box in one rack and an RK11-C
controller at the top of the next rack over. I'm a bit puzzled about how best
to run the bus cable to keep it out of harm's way, e.g. g
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