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Re: Almost Ready to Repeat the Cycle

From Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups comp.arch
Subject Re: Almost Ready to Repeat the Cycle
Date 2026-10-22 15:45 -0400
Organization A noiseless patient Spider
Message-ID <jwvmrs5jzge.fsf-monnier+comp.arch@gnu.org> (permalink)
References <6ad51222.27689359@news.eternal-september.org> <memo.20261020202111.15264J@jgd.cix.co.uk> <11bb7b6$93g4$1@dont-email.me> <1792685413-5857@newsgrouper.org> <2026Oct22.184735@mips.complang.tuwien.ac.at>

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Anton Ertl [2026-10-22 16:47:35] wrote:
> MitchAlsup <user5857@newsgrouper.org.invalid> writes:
>>BGB <cr88192@gmail.com> posted:
>>> At some level of feature cost, it may become preferable to emulate a 
>>> feature, or maybe the whole ISA, rather than invest the cost in native 
>>> hardware support.
>>Worked great for Transmeta ...
> That may have to do with the target that they translated to.  Intel
> and HP could not get this architecture style to perform well on
> general-purpose programs even when targeting it directly, so why
> should it perform well with a dynamic binary translator?
> OTOH, it seems to work ok for Apple with Rosetta.

I can see 2 important differences:

- Does the ISA you're emulating have an actively developed hardware
  implementation against which you're going to have to compete?
- Do you expect to spend 99% of your time emulating a foreign ISA, or do
  you expect to mostly run binaries using your native ISA and just
  occasionally emulate another?


=== Stefan

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Thread

Almost Ready to Repeat the Cycle quadibloc@invalid.com (John Savard) - 2026-10-18 18:39 +0000
  Re: Almost Ready to Repeat the Cycle quadibloc@invalid.com (John Savard) - 2026-10-18 18:47 +0000
    Re: Almost Ready to Repeat the Cycle quadibloc@invalid.com (John Savard) - 2026-10-18 22:00 +0000
      Re: Almost Ready to Repeat the Cycle quadibloc@invalid.com (John Savard) - 2026-10-20 17:12 +0000
  Re: Almost Ready to Repeat the Cycle jgd@cix.co.uk (John Dallman) - 2026-10-20 20:21 +0100
    Re: Almost Ready to Repeat the Cycle BGB <cr88192@gmail.com> - 2026-10-21 15:28 -0500
      Re: Almost Ready to Repeat the Cycle John Levine <johnl@taugh.com> - 2026-10-22 04:52 +0000
        Re: Almost Ready to Repeat the Cycle Bill Findlay <findlaybill@blueyonder.co.uk> - 2026-10-22 23:42 +0100
      Re: Almost Ready to Repeat the Cycle MitchAlsup <user5857@newsgrouper.org.invalid> - 2026-10-22 16:10 +0000
        Re: Almost Ready to Repeat the Cycle anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-10-22 16:47 +0000
          Re: Almost Ready to Repeat the Cycle BGB <cr88192@gmail.com> - 2026-10-22 20:23 -0500
            Binary translation (was: Almost Ready to Repeat the Cycle) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-10-23 07:55 +0000
              Re: Binary translation BGB <cr88192@gmail.com> - 2026-10-23 03:50 -0500
                Re: Binary translation anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-10-23 16:21 +0000
                Re: Binary translation jgd@cix.co.uk (John Dallman) - 2026-10-23 23:51 +0100
              Re: Binary translation antispam@fricas.org (Waldek Hebisch) - 2026-10-25 00:10 +0000
                Re: Binary translation aph@littlepinkcloud.invalid - 2026-10-25 19:49 +0000
          Re: Almost Ready to Repeat the Cycle Stefan Monnier <monnier@iro.umontreal.ca> - 2026-10-22 15:45 -0400
            Binary translation (was: Almost Ready to Repeat the Cycle) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-10-23 08:13 +0000
              Re: Binary translation (was: Almost Ready to Repeat the Cycle) Michael S <already5chosen@yahoo.com> - 2026-10-23 12:24 +0300
                Re: Binary translation (was: Almost Ready to Repeat the Cycle) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-10-23 16:41 +0000
              Re: Binary translation (was: Almost Ready to Repeat the Cycle) jgd@cix.co.uk (John Dallman) - 2026-10-23 23:51 +0100
            Re: Almost Ready to Repeat the Cycle quadibloc@invalid.com (John Savard) - 2026-10-23 14:53 +0000
              Re: Almost Ready to Repeat the Cycle quadibloc@invalid.com (John Savard) - 2026-10-23 15:08 +0000
          Re: Almost Ready to Repeat the Cycle jgd@cix.co.uk (John Dallman) - 2026-10-23 17:22 +0100
            Re: Almost Ready to Repeat the Cycle anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-10-23 21:20 +0000

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