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Re: processor binary- or pin-compatibility, was [Re: Processor ISAs]

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From Bob Eager <news0006@eager.cx>
Newsgroups alt.os.development, alt.folklore.computers, comp.arch
Subject Re: processor binary- or pin-compatibility, was [Re: Processor ISAs]
Date 4 Apr 2016 23:08:39 GMT
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On Mon, 04 Apr 2016 17:24:28 -0500, Charles Richmond wrote:

> "Rod Pemberton" <NoHaveNotOne@bcczxcfre.cmm> wrote in message
> news:20160401212231.1c439bc6@_...
>>
>>           [snip...]                 [snip...]                  
>>           [snip...]
>>
>> Z80 - binary compatible with 8080
> 
> The Z80 is *not* strictly "binary compatible" with the 8080.  There is
> some slight difference in the way the parity flag is used in some
> compare instructions, and also some incompatibility with the half-carry
> flag. Everywhere I look on the 'net, it seems people are trying to plow
> this knowledge under and ignore it.

Very few things are 100% binary compatible. Even the 8088 was different 
to the 8086 - it was easy to write a program to tell them apart.




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Thread

Processor ISAs "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-03-24 13:58 -0500
  Re: Processor ISAs "Alexei A. Frounze" <alexfrunews@gmail.com> - 2016-03-24 13:50 -0700
    Re: Processor ISAs "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-03-24 17:31 -0500
  Re: Processor ISAs Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-03-24 19:17 -0400
  Re: Processor ISAs "Benjamin David Lunt" <zfysz@fysnet.net> - 2016-03-24 17:50 -0700
    Re: Processor ISAs "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-03-25 13:21 -0500
  Re: Processor ISAs "wolfgang kern" <nowhere@never.at> - 2016-03-25 08:24 +0100
    Re: Processor ISAs Herbert Kleebauer <klee@unibwm.de> - 2016-03-25 12:43 +0100
  Re: Processor ISAs Lucretia <laguest9000@googlemail.com> - 2016-03-28 06:45 -0700
    Re: Processor ISAs Lucretia <laguest9000@googlemail.com> - 2016-03-28 06:54 -0700
      Re: Processor ISAs "wolfgang kern" <nowhere@never.at> - 2016-03-28 22:40 +0200
        Re: Processor ISAs Lucretia <laguest9000@googlemail.com> - 2016-03-29 13:00 -0700
          Re: Processor ISAs "wolfgang kern" <nowhere@never.at> - 2016-03-30 11:17 +0200
      Re: Processor ISAs James Harris <james.harris.1@gmail.com> - 2016-04-01 10:15 +0100
        Re: Processor ISAs "wolfgang kern" <nowhere@never.at> - 2016-04-01 13:16 +0200
          Re: Processor ISAs James Harris <james.harris.1@gmail.com> - 2016-04-01 22:48 +0100
            OT: processor binary- or pin-compatibility, was [Re: Processor ISAs] Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-04-01 21:22 -0400
              Re: OT: processor binary- or pin-compatibility, was [Re: Processor ISAs] Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-04-01 21:26 -0400
              Re: OT: processor binary- or pin-compatibility, was [Re: Processor ISAs] Bob Eager <news0006@eager.cx> - 2016-04-02 08:46 +0000
                Re: OT: processor binary- or pin-compatibility, was [Re: Processor Bogus@Embarq.com (Steve) - 2016-04-03 12:31 +0000
                Re: OT: processor binary- or pin-compatibility, was [Re: Processor Morten Reistad <first@last.name.invalid> - 2016-04-03 14:44 +0200
                Re: OT: processor binary- or pin-compatibility, was [Re: Processor Bob Eager <news0006@eager.cx> - 2016-04-03 18:53 +0000
                Re: OT: processor binary- or pin-compatibility, was [Re: Processor Bogus@Embarq.com (Steve) - 2016-04-03 20:07 +0000
                Re: OT: processor binary- or pin-compatibility, was [Re: Processor Bob Eager <news0006@eager.cx> - 2016-04-03 21:18 +0000
                Re: OT: processor binary- or pin-compatibility, was [Re: Processor "J. Clarke" <j.clarke.873638@gmail.com> - 2016-04-03 20:20 -0400
                Re: OT: processor binary- or pin-compatibility, was [Re: Processor "J. Clarke" <j.clarke.873638@gmail.com> - 2016-04-03 20:17 -0400
                Re: OT: processor binary- or pin-compatibility, was [Re: Processor pechter@pechter.dyndns.org (William Pechter) - 2016-04-04 15:53 +0000
              Re: processor binary- or pin-compatibility, was [Re: Processor ISAs] "Charles Richmond" <numerist@aquaporin4.com> - 2016-04-04 17:24 -0500
                Re: processor binary- or pin-compatibility, was [Re: Processor ISAs] Bob Eager <news0006@eager.cx> - 2016-04-04 23:08 +0000
                Re: processor binary- or pin-compatibility, was [Re: Processor ISAs] Bogus@Embarq.com (Steve) - 2016-04-05 17:43 +0000
                Re: processor binary- or pin-compatibility, was [Re: Processor ISAs] Ahem A Rivet's Shot <steveo@eircom.net> - 2016-04-05 19:15 +0100
            Re: Processor ISAs "wolfgang kern" <nowhere@never.at> - 2016-04-02 10:59 +0200

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