Re: The ideal standalone Z80-based retro computer

Newsgroups	comp.os.cpm
Date	2023-08-22 05:23 -0700
References	(10 earlier) <ubvee4$1rjn8$1@dont-email.me> <1e907055-1ed4-48c2-acf0-14a73069a41an@googlegroups.com> <fd6fe775-51c0-44e0-a979-3a53eee4bb82n@googlegroups.com> <uc25h5$2chfn$1@dont-email.me> <177030d4-c350-4218-999c-c0d84b104632n@googlegroups.com>
Message-ID	<82869a24-d5be-44ff-8dd5-a656d465cec3n@googlegroups.com> (permalink)
Subject	Re: The ideal standalone Z80-based retro computer
From	Zbig <zbigniew2011@gmail.com>

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> Why do you think it excludes most new projects? This year I designed two
> RCBus modules using the Z80. Also, a module on the Z280 supported by
> a contemporary AVR microcontroller was also created. One may wonder
> if such solutions can be called "retro", but certainly the Z80 modules are
> based on the Z80, and the Z280 is a Z80-compatible processor.

I don't want to disturb anyone with my „different opinion” — so
the last word here. And actually it's not my word — but the word
of eZ80 creators and manufacturers. In the PDF document they released
they clearly stated:

„The eZ80™ is ZiLOG’s next-generation Z80™ processor. The eZ80 provides 16
times the performance of a traditional Z80. The multiple operating modes of the
processor allows Z80 and Z180 code to be run without change in the same appli-
cation with new code [..] At the same time, the eZ80 remains 100% Z80 code-compat-
ible, reducing customer development time. [..]
Z80 High-Performance Microprocessor Core. The eZ80 is one of the fastest 8-
bit CPUs available today, executing code 4 times faster than a standard Z80 oper-
ating at the same clock speed. [..]
The eZ80 is ZiLOG’s fourth-generation Z80 processor core.”

I could quote even more — but I believe it's quite enough. So the creators themselves
call eZ80 simply „next-generation Z80”, but you and Ladislau „know better”.

BTW: as I've found out, DDR-manufactured U880 wasn't actually exact clone of Z80:
„The U880 is an unlicensed clone of the Zilog Z80 microprocessor, also supporting
illegal opcodes and bugs, except for very minor differences like not setting the CY
flag for the OUTI command (when L goes zero).” — so you would include that one
into your list — although it was merely 99% compatible, at most — and you're willing
to exclude „next-generation Z80” (which hasn't such issues) only because it's newer?
Then maybe 8 Mhz clocked Z80 also should be excluded?

OK, „over and out”.

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The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-07-25 02:30 -0700
  Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-07-25 04:39 -0700
    Re: The ideal standalone Z80-based retro computer Phil G <philg@talk21.com> - 2023-07-25 06:18 -0700
    Re: The ideal standalone Z80-based retro computer Phil G <philg@talk21.com> - 2023-07-25 06:48 -0700
      Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-07-25 07:10 -0700
        Re: The ideal standalone Z80-based retro computer Douglas Miller <durgadas311@gmail.com> - 2023-07-25 07:20 -0700
          Re: The ideal standalone Z80-based retro computer Roger Hanscom <norwestrzh@gmail.com> - 2023-07-25 11:05 -0700
            Re: The ideal standalone Z80-based retro computer Bozo User <anthk@disroot.org> - 2023-07-30 18:53 +0000
              Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-07-31 00:11 -0700
                Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-08-11 05:26 -0700
                Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-08-12 00:16 -0700
                Re: The ideal standalone Z80-based retro computer Bozo User <anthk@disroot.org> - 2024-04-05 22:00 +0000
      Re: The ideal standalone Z80-based retro computer Douglas Miller <durgadas311@gmail.com> - 2023-07-25 07:11 -0700
  Re: The ideal standalone Z80-based retro computer Adam Sampson <ats@offog.org> - 2023-07-25 19:34 +0100
    Re: The ideal standalone Z80-based retro computer Udo Munk <udo.munk@freenet.de> - 2023-07-25 12:39 -0700
      Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-07-25 23:05 -0700
  Re: The ideal standalone Z80-based retro computer yeti <yeti@tilde.institute> - 2023-07-28 05:01 +0000
  Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-19 10:47 -0700
    Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-08-19 22:02 -0700
      Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-20 01:19 -0700
        Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-08-20 11:36 -0700
          Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-20 12:40 -0700
          Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-20 13:03 -0700
            Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-08-21 00:08 -0700
              Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-21 01:03 -0700
                Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-08-21 03:01 -0700
                Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-21 03:11 -0700
                Re: The ideal standalone Z80-based retro computer dxforth <dxforth@gmail.com> - 2023-08-21 20:31 +1000
                Re: The ideal standalone Z80-based retro computer ladislau szilagyi <ladislau_szilagyi@euroqst.ro> - 2023-08-21 05:09 -0700
                Re: The ideal standalone Z80-based retro computer Tadeusz Pycio <tapy@wp.pl> - 2023-08-22 02:34 -0700
                Re: The ideal standalone Z80-based retro computer dxforth <dxforth@gmail.com> - 2023-08-22 21:17 +1000
                Re: The ideal standalone Z80-based retro computer Tadeusz Pycio <tapy@wp.pl> - 2023-08-22 04:44 -0700
                Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-22 05:23 -0700
                Re: The ideal standalone Z80-based retro computer Tadeusz Pycio <tapy@wp.pl> - 2023-08-22 05:56 -0700
                Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-22 06:07 -0700
                Re: The ideal standalone Z80-based retro computer "rwd...@gmail.com" <rwdeane@gmail.com> - 2023-08-22 10:00 -0700
                Re: The ideal standalone Z80-based retro computer dxforth <dxforth@gmail.com> - 2023-08-23 03:36 +1000
                Re: The ideal standalone Z80-based retro computer Tadeusz Pycio <tapy@wp.pl> - 2023-08-22 11:41 -0700
                Re: The ideal standalone Z80-based retro computer dxforth <dxforth@gmail.com> - 2023-08-23 16:10 +1000
                Re: The ideal standalone Z80-based retro computer Chris Syntichakis <csynt8bit@gmail.com> - 2023-08-24 23:37 -0700
                Re: The ideal standalone Z80-based retro computer dxforth <dxforth@gmail.com> - 2023-08-25 20:39 +1000
                Re: The ideal standalone Z80-based retro computer Chris Syntichakis <csynt8bit@gmail.com> - 2023-08-26 00:29 -0700
                Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-27 08:48 -0700
                Re: The ideal standalone Z80-based retro computer dxforth <dxforth@gmail.com> - 2023-08-28 21:35 +1000
                Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-24 11:51 -0700
                Re: The ideal standalone Z80-based retro computer "fridtjof.ma...@gmail.com" <fridtjof.martin.weigel@gmail.com> - 2023-08-26 09:40 -0700
                Re: The ideal standalone Z80-based retro computer Roger Hanscom <norwestrzh@gmail.com> - 2023-08-26 14:39 -0700
                Re: The ideal standalone Z80-based retro computer Zbig <zbigniew2011@gmail.com> - 2023-08-26 16:03 -0700
                Re: The ideal standalone Z80-based retro computer dxforth <dxforth@gmail.com> - 2023-08-27 12:20 +1000
                Re: The ideal standalone Z80-based retro computer Greg Holdren <greg.holdren@gmail.com> - 2023-08-26 18:52 -0700
                Re: The ideal standalone Z80-based retro computer jeffj@panix.com (Jeff Jonas) - 2023-09-07 03:47 +0000
                Re: The ideal standalone Z80-based retro computer jeffj@panix.com (Jeff Jonas) - 2023-09-07 03:50 +0000
                Re: The ideal standalone Z80-based retro computer dxforth <dxforth@gmail.com> - 2023-09-07 19:20 +1000
                Re: The ideal standalone Z80-based retro computer pH <wNOSPAMp@gmail.org> - 2023-09-07 16:03 +0000
                Re: The ideal standalone Z80-based retro computer yeti <yeti@tilde.institute> - 2023-09-07 18:03 +0000
                Re: The ideal standalone Z80-based retro computer pH <wNOSPAMp@gmail.org> - 2023-09-08 21:29 +0000
                Re: The ideal standalone Z80-based retro computer Roger Hanscom <norwestrzh@gmail.com> - 2023-09-08 08:51 -0700
                Re: The ideal standalone Z80-based retro computer pH <wNOSPAMp@gmail.org> - 2023-09-08 21:31 +0000
                Re: The ideal standalone Z80-based retro computer Bill McMullen <mcmullenbill0@gmail.com> - 2023-09-08 16:47 -0700
                Re: The ideal standalone Z80-based retro computer "mrgcm...@gmail.com" <mrgcms2001@gmail.com> - 2023-09-19 08:35 -0700
                Re: The ideal standalone Z80-based retro computer pH <wNOSPAMp@gmail.org> - 2023-09-20 03:04 +0000
                Re: The ideal standalone Z80-based retro computer "pbi...@gmail.com" <pbirkel@gmail.com> - 2023-09-19 23:22 -0700
                Re: The ideal standalone Z80-based retro computer "mrgcm...@gmail.com" <mrgcms2001@gmail.com> - 2023-09-20 12:51 -0700
                Re: The ideal standalone Z80-based retro computer dxforth <dxforth@gmail.com> - 2023-09-09 10:34 +1000
  Re: The ideal standalone Z80-based retro computer andrei-n <andrei.nesterov@gmail.com> - 2023-08-29 09:08 -0700
    Re: The ideal standalone Z80-based retro computer yeti <yeti@tilde.institute> - 2023-08-29 16:29 +0000

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