28 Oct
2012
28 Oct
'12
3:47 p.m.
I did some number crunching and decided that I can indeed produce P112
kits with all the parts you'll need. See http://661.org/p112 or
http://p112.feedle.net
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
31 Oct
31 Oct
7:50 p.m.
On 10/28/2012 4:47 PM, David Griffith wrote:
I did some number crunching and decided that I can indeed produce P112
kits with all the parts you'll need. See http://661.org/p112 or
http://p112.feedle.net
So what can you use for a power supply?
I need a compete bundle. Partial kits tend to nickel and dime
me. 39 cent part. $49.50 fedex does not work.
Ben.
What I am also looking for is single board computer
than I get a prom burned that will let me emulate computer
in the 12 to 24 bit range, and still have reasonable fake I/O.
8:36 p.m.
On Wed, 31 Oct 2012, ben wrote:
On 10/28/2012 4:47 PM, David Griffith wrote:
The P112 draws about 150 milliamps not including the floppy drives. If
you do what many others have and use an old external hard drive chassis,
you can use that power supply.
I'm not sure what you mean by "emulate computer in the 12 to 24 bit range,
and still have reasonably fake I/O".
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
I did some number crunching and decided that I can indeed produce P112
kits with all the parts you'll need. See http://661.org/p112 or
http://p112.feedle.net
So what can you use for a power supply?
I need a compete bundle. Partial kits tend to nickel and dime
me. 39 cent part. $49.50 fedex does not work.
Ben.
What I am also looking for is single board computer
than I get a prom burned that will let me emulate computer
in the 12 to 24 bit range, and still have reasonable fake I/O.
8:59 p.m.
On 10/31/2012 9:36 PM, David Griffith wrote:
The P112 draws about 150 milliamps not including the
floppy drives. If
you do what many others have and use an old external hard drive chassis,
you can use that power supply.
If I had that, I would not be asking what to use.
I am thinking of that getting that kit, but have no spare parts
kicking around the house as most kit salesman have you to believe.
If I have to buy parts here and there, I would be better off with a Coco III
and Nitro/9.
I'm not sure what you mean by "emulate
computer in the 12 to 24 bit
range, and still have reasonably fake I/O".
I want to run some classic computer emulators, but as a standalone
product rather having to power on a full sized PC. Notebooks and laptops
still count as a PC. As far as I know, nobody is selling FPGA clones of any
of the older products.
Ben.
1 Nov
1 Nov
1:22 a.m.
On 01/11/2012 03:59, ben wrote:
If you want emulation you probably need the speed of a PC CPU to get
there...
On 10/31/2012 9:36 PM, David Griffith wrote:
Probably a good choice for standalone CoCo III programs...
The P112 draws about 150 milliamps not including
the floppy drives. If
you do what many others have and use an old external hard drive chassis,
you can use that power supply.
If I had that, I would not be asking what to use.
I am thinking of that getting that kit, but have no spare parts
kicking around the house as most kit salesman have you to believe.
If I have to buy parts here and there, I would be better off with a
Coco III
and Nitro/9.
I'm not
sure what you mean by "emulate computer in the 12 to 24 bit
range, and still have reasonably fake I/O".
I want to run some classic computer emulators, but as a standalone product rather having to power on a full sized PC.
Notebooks and laptops
still count as a PC. As far as I know, nobody is selling FPGA clones
of any
of the older products.
Ben.
The P112 is a real old computer and as such it doesn't emulate anything.
It all runs native. You also need a separate serial terminal (or a PC)
to make it work.
If you want to run "some classic computer emulators" then you might
want to look at the Raspberry PI. Its small enough to meet your needs.
If you are just using a keyboard and mouse then its self contained.
Trouble is its a bit on the slow side, and only a few emulators have
been ported to the ARM architecture....
PDP/11 - SIMH
http://www.youtube.com/watch?v=o1hfbkdP0B4
Amiga
http://www.youtube.com/watch?v=_A35MhabP_8
I know the Hercules mainframe emulator has also been ported...
.. but no one seems to have ported any of the CoCo emulators yet...
--
Dave Wade G4UGM
Illegitimi Non Carborundum
3:07 a.m.
On 10/31/2012 10:50 PM, ben wrote:
On 10/28/2012 4:47 PM, David Griffith wrote:
Using a Z80 (P112 is Z180 , but the core is still z80) 8bitter
regardless of speed
will emulate a lot of stuff... S..L..O..W..L..Y.....!
Is that what you want or are you thinking 32bit A9 ARM core at 400mhz??
Allison
I did some number crunching and decided that I can indeed produce P112
kits with all the parts you'll need. See http://661.org/p112 or
http://p112.feedle.net
So what can you use for a power supply?
I need a compete bundle. Partial kits tend to nickel and dime
me. 39 cent part. $49.50 fedex does not work.
Ben.
What I am also looking for is single board computer
than I get a prom burned that will let me emulate computer
in the 12 to 24 bit range, and still have reasonable fake I/O.
10:15 a.m.
On 11/1/2012 4:07 AM, allison wrote:
Using a Z80 (P112 is Z180 , but the core is still z80) 8bitter
regardless of speed
will emulate a lot of stuff... S..L..O..W..L..Y.....!
No, I want the P112 for 8080 and cp/m. Fig Forth, Small C, Adventure ... .
I still need a floppy, power supply , cables and formatted media.
That I can get later. Since I have to pre-order from web site, I'll order
around the 9th. I still am waiting for a few bills to come in.
Is that what you want or are you thinking 32bit A9 ARM
core at 400mhz??
No, just a generic Risc & 150 Mhz. A quick on the web, seems to
give
small one chip clones, or full sized linux systems for single board
computers.
Allison
I still want to play with classic computers, not on windows/linux machine.
As I find out more about the older machines, it seems the way things worked,
is you time shared on a BIG computer (360/Vax/PDP-10) in Fortran, and
punched
on paper tape for all the other (small) computers.
Right now my big hardware/software/vaporware project is 18 bit computer,
using a 2901 engine with a 400 ns clock and my own instruction set.
This will give a 1.2 us memory cycle - 600 ns access time. Micro-code is
256 x 16, giving the feel of mid 1970's general purpose computer with
Front panel ,16 Kw core memory, Serial I/O and small hard drive (moving
head).
A bios will hide the 6850 Acia, and IDE interface. I plan to emulate
for now
then later build the hardware on 4 PCB's. ALU,Control, Front panel and Basic
memory,EEprom, 6850. Remaining memory and IDE interface on other board.
Ben.
12:15 p.m.
On 11/01/2012 01:15 PM, ben wrote:
There are no shortage of small, mid and full out ARM based systems.
Many of them under 100$. Also ARM is RISC, though 150mhz and modest
you are looking for maybe a A7 core. As to non linux Raspberry PI I
believe they
run "other". Me I find a ARM core with enough ram, flash and a microSD
card
to be utility system running a small linux as a convenient starting
point to self
compile any project.
On 11/1/2012 4:07 AM, allison wrote:
Your still getting a Z180. ;)
I considered it bout I have enough Machine that do all that already.
Though my favorites are my Kaypro4/84 and AmproLB+.
Using a Z80 (P112 is Z180 , but the core is still z80) 8bitter
regardless of speed
will emulate a lot of stuff... S..L..O..W..L..Y.....!
No, I want the P112 for 8080 and cp/m. Fig Forth, Small C, Adventure
... .
I still need a floppy, power supply , cables and formatted media.
That I can get later. Since I have to pre-order from web site, I'll order
around the 9th. I still am waiting for a few bills to come in.
Is that what you want or are you thinking 32bit
A9 ARM core at 400mhz??
No, just a generic Risc & 150 Mhz. A quick on the web,
seems to give
small one chip clones, or full sized linux systems for single board
computers.
I still want to play with classic computers, not on
windows/linux
machine.
As I find out more about the older machines, it seems the way things
worked,
is you time shared on a BIG computer (360/Vax/PDP-10) in Fortran, and
punched
on paper tape for all the other (small) computers.
I tired of paper tape fast and did my dead level best to avoid 029 and
cards.
My idea of all of that was a PDP10 or VAX running Tops10 or VMS, I have
enough of
the latter operational. Long time timeshare user on big (and smaller) iron.
If I need real clank and bang I have a few PDP-11s with RX02 and RL02
running RT
and other OSs. Same for an PDP-8f
Right now my big hardware/software/vaporware project
is 18 bit computer,
using a 2901 engine with a 400 ns clock and my own instruction set.
This will give a 1.2 us memory cycle - 600 ns access time. Micro-code is
256 x 16, giving the feel of mid 1970's general purpose computer with
Front panel ,16 Kw core memory, Serial I/O and small hard drive
(moving head).
A bios will hide the 6850 Acia, and IDE interface. I plan to emulate
for now
then later build the hardware on 4 PCB's. ALU,Control, Front panel and
Basic
memory,EEprom, 6850. Remaining memory and IDE interface on other board.
Ben.
2901 is not well suited to 18bit as a 4 bit slice but it can be done.
Did a lot with
2900 and still have a bunch of the 2901Cs. Consider a wider microword
though
as it does make the encoding easier and helps with speed too.
For drives I tend to go more to SD or CF as gets rid of a host of
hardware, power,
and noise. Moving head drives are getting to be a PITA to interface as SATA
is the norm and older IDE more scarce. I keep a pile of older stuff because
but still I try to build around current material even if its emulating
older gear.
Allison
5 Nov
5 Nov
11:09 a.m.
I posted about the p112 to the raspberry pi forum a little while back.
I also just did today a post on my blog. I get 500-1000 visitors a
day, maybe it'll help, but I think the few interested were already
aware from the raspberry pi forum. I'll post about it to our local
hackerspace too.
http://raspberry-python.blogspot.com/2012/11/retro-computing-kit.html
Fran?ois
10 Nov
10 Nov
5:40 a.m.
On Mon, Nov 5, 2012 at 8:09 PM, Francois Dion <francois.dion at gmail.com> wrote:
I posted about the p112 to the raspberry pi forum a
little while back.
I also just did today a post on my blog. I get 500-1000 visitors a
day, maybe it'll help, but I think the few interested were already
aware from the raspberry pi forum. I'll post about it to our local
hackerspace too.
Only 57 hours left.
If you want one, now is the time to pitch in.
I'm not sure that all of the current backers have the financial
muscle for a "plan b"...
--
Regards,
Torfinn Ingolfsen,
Norway
12 Nov
12 Nov
1:38 p.m.
Ok, now it is less than two hours (83 minutes as I write this), and
the project is 491 dollars short of funding,
Or about is five (5) backers of 100 dollars each, or three (3) backers
at 170 dollars each.
So, any backers thinking of upping their pledge?
(Yes, that is my "plan b" in case anyone wonders)
--
Regards,
Torfinn Ingolfsen
8:57 p.m.
On Mon, 12 Nov 2012, Torfinn Ingolfsen wrote:
Ok, now it is less than two hours (83 minutes as I
write this), and
the project is 491 dollars short of funding,
Or about is five (5) backers of 100 dollars each, or three (3) backers
at 170 dollars each.
So, any backers thinking of upping their pledge?
(Yes, that is my "plan b" in case anyone wonders)
Something must be weird with the list because your message just now rolled
in and the funding process ended six hours ago with success.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
4422
days inactive
4438
days old
11 comments
6 participants
participants (6)
-
ajp166＠verizon.net -
bfranchuk＠jetnet.ab.ca -
dave.g4ugm＠gmail.com -
dgriffi＠cs.csubak.edu -
francois.dion＠gmail.com -
tingox＠gmail.com