On Mar 18, 2016 9:15 AM, "dwight" wrote:
>
> Also, you see most applications using 1702s instead of 4001
> or 4308. I've never seen a 4308 in the wild.
I've seen one 4308 in the wild: in a later generation ARC RT-485A NAV/COM
radio. The earlier ones just use four 4001s.
Kyle
bject: Re: Code listings for the I4004 or I4040
Eric
The answer is no and yes.
You can not use the normal RAM instructions with the 4289. Still, one
can have RAM through the 4289. It would have no status RAM like the 4002s
but for a program that is written to use conventional RAM through the
4289, i
On Thu, Mar 17, 2016 at 1:18 PM, dwight wrote:
> The 4289 can be used for RAM with the 4040, using the WPM and RPM. It can be
> used
> on the 4004 but it is limited to WPM only.
I know about that; what I was asking about was whether the 4289 (or
4008/4009) could replace "normal' 4002 RAM. I thi
On Thursday (03/17/2016 at 10:04AM -0500), Kyle Owen wrote:
> On Thu, Mar 17, 2016 at 1:43 AM, Eric Smith wrote:
> >
> > Unfortunately I do not, but I've recently become interested in such
> > things, as I have received from a friend's estate an old board from an
> > embedded system (possibly a ca
On Thu, Mar 17, 2016 at 9:04 AM, Kyle Owen wrote:
> Wow, an engineering sample 4040. Very nice. Highly sought after by those
> CPU collectors out there.
I noticed that it was an engineering sample, but hadn't really thought
about that making it more valuable to collectors. Perhaps I should
sell t
h 17, 2016 9:19 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Code listings for the I4004 or I4040
On Thu, Mar 17, 2016 at 9:04 AM, Kyle Owen wrote:
> Wow, an engineering sample 4040. Very nice. Highly sought after by those
> CPU collectors out there.
I noticed that it w
On Tue, Mar 15, 2016 at 10:54 PM, dwight wrote:
> I've been scanning the web in search of any code listings for these
> processors.
[...]
> Does anyone have a stash of paper tapes or listings?
Unfortunately I do not, but I've recently become interested in such
things, as I have received from a f
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brent
Hilpert
Sent: Friday, March 18, 2016 5:41 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Code listings for the I4004 or I4040
.
I had a failed 4201 chip (clock gen), it
On 2016-Mar-17, at 10:11 PM, dwight wrote:
> Also, I've found a source for 5.185MHz crystals.
> ACE Components has some. They are in San Jose, on Oakland Rd.
> Dwight
I have two items which use 4004 procs, one is a Prolog M900B E/PROM programmer
ca. 1979.
The manual includes the firmware source.
Thursday, March 17, 2016 1:23 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Code listings for the I4004 or I4040
On Thu, Mar 17, 2016 at 1:18 PM, dwight wrote:
> The 4289 can be used for RAM with the 4040, using the WPM and RPM. It can be
> used
> on the 4004 but i
'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: Code listings for the I4004 or I4040
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brent
Hilpert
Sent: Friday, March 18, 2016 5:41 AM
To: General Discussion: On-Topic and Off
I find it interesting that most applications seem to use a small amount
of RAM but a lot of ROM.
When the 4004 was designed, it had the extra pins assigned to select
more banks of RAM instead of ROM.
By the 4040 time they added more ROM select controls.
I don't think I've ever seen all possible R
On Thu, Mar 17, 2016 at 1:43 AM, Eric Smith wrote:
>
> Unfortunately I do not, but I've recently become interested in such
> things, as I have received from a friend's estate an old board from an
> embedded system (possibly a cash register) which has a 4040 CPU.
> Photos here:
>
> https://www.
>
>
>
There is a nice 1975 iasis inc.educational book series about
microcomputers. Volume III covers "The 4-bit Microcomputer" and takes a
person step by step through the 4004 processor, and it came with a
reference card. It covers the entire chip set for the i4000.
--
@ BillDeg:
Web: vintageco
On Fri, 18 Mar 2016, Brent Hilpert wrote:
I have two items which use 4004 procs, one is a Prolog M900B E/PROM programmer
ca. 1979.
The manual includes the firmware source. (Somewhat bizarrely, it's
typed/printed onto coding forms.)
Here are the first two pages (photos, not scanned).
We have
On 2016-Mar-19, at 11:40 AM, Paul Birkel wrote:
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brent
> Hilpert
> Sent: Friday, March 18, 2016 5:41 AM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: Code list
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