Z8000
ZXNet echo conference «real.speccy»
Does anyone know the subject (or maybe Z80000, i.e. I’m confusing it)? It seems to be compatible with the Z80. And
32-bit.
And more. According to unverified data, it was possible to overclock the Speccy to 100 MHz. Gon or what?
And the last thing. There is an MS-DOS emulator for CP/M, which works great on the ZX.
This is already a hundred pounds away. The latest Quorum models were equipped with it. Is there anyone?
Well, I think I said everything... Bye _*All*_ !
... Awl is not a sparrow, she won’t run into the forest.
My on-board systems found that on Saturday July 24, 2004 03:15, John
Zaicev wrote All:
JZ> for CP/M, which works great on the ZX. This is already a hundred pounds of racing.
JZ> The latest models of Quorums were equipped with it. Is there anyone?
I’ll look at the discs, but I can’t promise...
Sincerely, Alexander Smirnov.
Пока!
comming soon: Pinix v. 1.5<=>2.0 <===40%--->
Amusement Park 2k4 <===60%-->
[ZX Realist] [ZX-Nastolgy] [Profi +] [SashaSoft]
And it was morning, and there was the day of July 24, 04, and once John Zaicev wrote All about _RE:
Z8000_.
JZ> Does anyone know the subject (or maybe Z80000, i.e. I'm confusing)? Seems to be compatible with
JZ> Z80. And 32-bit.
It seems like there is one...
Somewhere on the Internet I read about the idea of creating ZX on it...
JZ> And one more thing. According to unverified data, it was possible to overclock the Speccy to 100 MHz. Gon
Everything is possible, especially all sorts of Sprinter-shaped ones....
Bye!
comming soon: Pinix v. 1.5<=>2.0 <===40%--->
Amusement Park 2k4 <===60%-->
[ZX Realist] [ZX-Nastolgy] [Profi +] [SashaSoft]
My on-board systems detected that on Tuesday August 03, 2004 14:36,
Alexander Sharihin wrote to Alexander Smirnov:
AS> And it was morning, and it was day August 01, 04, and once upon a time Alexander Smirnov
AS> John Zaicev wrote about _RE: Z8000_.
July 24, 2004 (and it was 03:15 then)
John Zaicev in his letter to All wrote:
JZ> Does anyone know the subject (or maybe Z80000, i.e. I’m confusing)? It seems to be compatible
JZ> with the Z80. And 32-bit. And one more thing. According to unverified data, it was possible to overclock the
JZ> Speccy to 100 MHz. Gon or what?
And they also wrote Windows XP for Spectrum. And they replaced the old FAT system with
the more convenient NTFS.
Vega/ex-Style Group.
FIDO: 2:5030/1512 ZXNET: 500:812/19 E-mail: veg...@mail.ru ICQ: 144932679
And it was morning, and there was a day on August 09, 04, and once Vlad Sotnikov wrote to John
Zaicev about _RE: Z8000_.
VS> And they also wrote Windows XP for the Spectrum. And they replaced the old system
VS> FAT with a more convenient NTFS.
Only they didn’t use Z8000, AMD Optiron :>
Bye!
comming soon: Pinix v. 1.5<=>2.0 <===41%--->
Amusement Park 2k4 <===62%-->
VS> They also wrote Windows XP for Spectrum. And they replaced the old system
VS> FAT with the more convenient NTFS.
I believe, but FAT never existed on the ZX. They took EXT3. There were rumors that Unix was implemented on the Z80 (not the ZX).
Well, I think I said it all... Bye _*Vlad*_ !
... I came, I saw and... I left!
Sotnikov about _RE: Z8000_.
JZ> rumors that Unix was implemented on the Z80 (not ZX).
UZIX - MSX
UZI - who knows that:
And there were even more...
JZ> "Quorums" were equipped with it. Is there anyone?
Listen, a huge request, when you find it, let me know where to get some soap!
Sat Jul 24 2004 03:15, John Zaicev wrote to All:
JZ> Does anyone know the subject (or maybe Z80000, i.e. I'm confusing)? Seems to be compatible with
JZ> Z80. And 32-bit.
Quotes from R. Holland's book "Microprocessors and Operating Systems":
"Zilog's Z8000 family includes several 16-bit CPUs, differing
from each other only in addressable memory (including virtual memory), and
several auxiliary chips, such as I/O control and
coprocessors. The main CPUs are:
Z8001, addressing 8 MB memory (16+7 address lines) with 16-bit data bus (48-pin DIP package);
Z8002, addressing 64 KB memory (16 address lines) with 16-bit data bus (40-pin DIP package).
Z8010 memory management device is used. together with the Z8001 CPU to
manage the 8 MB address space, thus providing
segment movement and memory protection. The Z8003 and Z8004 microprocessors are almost
identical to the Z8001, but do not allow virtual memory organization."
"The 32-bit Z80000 CPU is upward compatible with 16-bit microprocessors. family
Z8000 (Z8001 and Z8002). Apparently, in terms of internal capabilities, it
is the most powerful 32-bit processor [and the book also discusses
80386 and MC68020 - approx.] because it has internal cache memory and
device.memory management, and its synchronization frequency is 25 MHz.
The device in question has a 6-stage command pipeline, and
CPU performance corresponds to 4-5 million operations per second."
Death is worth living, and love is worth waiting for.
KV> Z8000 (Z8001 and Z8002). Apparently, in terms of internal capabilities, it
KV> is the most powerful 32-bit processor [and the book also
KV> discusses
KV> 80386 and MC68020 - approx. I] because it has internal cache memory and
In fact, during the entire existence of these so-called “CPUs”, no more than several tens of thousands of them were made - purely on the order of “crazy” companies
like commodore for their no less crazy projects like “z-machines”. There has never been real
MASS production. And these prototypes can be considered paper because real samples in silicon contained a lot of bugs and they were produced only for prototypes. A 32-bit version of the 6502 also exists, but unlike the
65816 it was never mass produced.
Regards.
The Olivetti M20 machine with a special version
CP/M worked on this processor. I have this OS. and with sources.
... Amiga 1200/MTec-1230 42 MHz/8 mb fast/1380 mb HDD/SVGA + TV
JZ> I believe it, but FAT has never existed on the ZX. They took EXT3. There were rumors
JZ> that Unix was implemented on the Z80 (not the ZX).
But that’s not true!
FAT16 was successfully implemented on the Sprinter and a hard drive up to 2GB is visible
remarkably all!
Zilog has a 16-bit Z380, but on the Z8000 something like a myth - nowhere There is no information, although there are Z800004 and Z800006, etc. etc.
Sprinter user, ATM-2. NedoPC group. Website:http://chunin.infpres.com
Про Z8000 на http://www.kranenborg.org/z8000/ написано буквально следующее:
--- cut ---
The Z8000 CPU series has been Zilog's contribution in the "Processor War"
(i.e the competition between various 16-bit microprocessor designs during
1978-1985, before the Intel 80*86 family came out as the winner), and was
introduced in 1979 between the 8086 CPU (Intel) and the 68000 CPU
(Motorola). The series has been developed and produced by Zilog and second
sources (AMD, SGS-ATES and Hitachi) from 1979 until approximately 1995 (?).
The Z8000 CPUs appeared in two versions; a large memory version (Z8001) with
8 Mbyte addressing capability, and a small memory version (Z8002) with 64
Kbyte addressing capability. Since 1995, the CPU series continues to live -
almost secretly - (and still is in production by Zilog) in a pin-compatible
CMOS release called the Z16C00 series (with the Z16C01 as the equivalent of
Z8001 and the Z16C02 as the equivalent of Z8002). The Z16C00 series appears
to be applied entirely in non-commercial embedded applications.
A 32 bit follow-up called theZ80,000 has been designed in 1984 with very
advanced features for that time (on-chip cache and on-chip paged memory
management unit), as well as the Z8070 Floating Point Co-processor. Both
designs never were released commercially (the Z80,000 made it to a test
sampling phase, the Z8070 was dropped early in the design phase). However,
the peripheral chips of the Z8000 family (notably the Z8030/Z8530 SCC) were
very succesful and (together with enhanced versions) are still in production
today (see Zilogs SCC page)
The Z8000 series introduced a number of attractive new features in the
microprocessor world from the mini-computer and mainframe worlds:
- Regular general-purpose register file (16 16-bit registers that could be
used as accumulators, address registers, index registers or stackpointers)
- Separation of Normal and System modes (also known as User and Supervisor
modes) for enhancing system integrity
- Large address space (8Mb)
- First commercial Memory management facility (Z8010 Z-MMU)
- Extended Processing Architecture (EPA) allowing co-processing in an
efficient parallel fashion
The Z8000 processor also had some drawbacks as compared to its close rival,
the 68000 processor:
- Segmented addressing: maximum segment size of 64Kb which complicates the
addressing of very large data structures
- Delayed introduction due to tecnical problems
- Limited support (very limited software base, limited hardware support)
Although initially the Z8000 got some acceptance and was widely recognised
to have a very elegant and user-friendly architecture, it became quickly
surpassed by the Motorola 68000 and the Intel 80286 in the commercial
domain. In safe-critical environments however the processor apparently
continued to play an important role.
--- cut ---
Следы Z16C01/02 на сайте Зайлога еще сохранились. В частности Product
Specification на них лежит по адресу
http://www.zilog.com/docs/serial/cps95scc01.pdf (размер - 1366кб)
--
С уважением, Андрей Михеев.
[skip]
AVM> Traces of Z16C01/02 on the Zaylog website are still preserved. In particular, the Product
AVM> Specification is located at
AVM> http://www.zilog.com/docs/serial/cps95scc01.pdf (size - 1366kb)
I.e. it has become a rarity.
There is no point in developing a computer on it, because there are no available opportunities
to purchase it.
Thanks for the information!
AVM> Sincerely, Andrey Mikheev.
Sincerely, Chunin Roman
ATM2+ user, Sprinter-2K. NedoPC group. http://chunin.infpres.com
CR> Zilog has a 16-bit Z380, but on the Z8000 something looks like a myth - there is no information
CR> anywhere
CR>, although there are Z800004 and Z800006, etc. etc.
Yes, there is all the information on the Internet about the Z8000, it’s just that the percent was never produced in
mass batches like, for example, the z280. Maybe over the course of history, several hundred thousand of these Z8000 and Z80000 combined were produced. In addition, both of them still have bugs that essentially blocked their path to the market in the early 80s. Who, you ask, would even think of making a computer on a process with bugs
that were not fixed for 5 or more years after release and after a long
time only experimental batches were produced?
Regards.
> [skip]
> AVM> Traces of Z16C01/02 on the Zailog website are still preserved. In particular, Product
> AVM> Specification is located on them at
> AVM> http://www.zilog.com/docs/serial/cps95scc01.pdf (size - 1366kb)
> Moreover, in both
> there were still bugs that essentially blocked their path to the market in
> the early 80s. Who, you ask, would think of making a computer on a process with bugs
> that were not fixed for 5 or more years after release and after a long
> time only experimental batches were produced?