Empirical data on ISA design parameters

By: NvaxPlus (spam.delete@this.spam.com), August 2, 2022 7:45 am
Room: Moderated Discussions
I'm curious if anyone here has any good resources (papers, or things of that sort) on empirical data about what works and what doesn't in an ISA. It seems to me that a lot of arguments about instruction set design rely on intuition and received wisdom. Sometimes that's helpful and sometimes it isn't. I've been doing a (admittedly, cursory) literature review on this subject and was surprised just how seemingly little publicly available information there is.

When I say "empirical data" I mean specifically things like, how large immediates you actually need, what kind branching ops actually get used (i.e. do we need the full gamut of integer comparisons, or are equals/does not equal zero enough?), &c.

The question re: immediate size is especially interesting to me. The only real data I could find on this is from H&P and as far as I could see they don't really delve into their methodology. What they do show suggests that the log2 of immediates is bimodal which kind of intuitively makes sense to me.
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Empirical data on ISA design parametersNvaxPlus2022/08/02 07:45 AM
  Empirical data on ISA design parameters---2022/08/02 09:25 AM
    Empirical data on ISA design parametersRayla2022/08/02 09:29 AM
  Empirical data on ISA design parametersAnon2022/08/02 10:46 AM
    Empirical data on ISA design parametersAdrian2022/08/03 01:00 AM
      Immediate ranges (was: Empirical data on ISA...)Marcus2022/08/07 09:16 AM
        Immediate ranges (was: Empirical data on ISA...)Björn Ragnar Björnsson2022/08/07 04:14 PM
          Immediate ranges (was: Empirical data on ISA...)Marcus2022/08/07 08:50 PM
  I hope you find something, but there are challengesMark Roulo2022/08/02 05:48 PM
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          I hope you find something, but there are challengesLinus Torvalds2022/08/03 10:31 AM
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            I hope you find something, but there are challengesAdrian2022/08/04 03:56 AM
              I hope you find something, but there are challengesLinus Torvalds2022/08/04 10:03 AM
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        I hope you find something, but there are challengesAdrian2022/08/03 10:33 AM
          I hope you find something, but there are challengesBrett2022/08/03 11:21 AM
          I hope you find something, but there are challenges---2022/08/03 01:55 PM
            I hope you find something, but there are challengesBrett2022/08/03 03:31 PM
              Rebirth of the 68k archBrett2022/08/05 12:17 PM
                Rebirth of the 68k archMarcus2022/08/06 03:36 AM
                  Rebirth of the 68k archMegol2022/08/07 01:01 PM
                    Rebirth of the 68k archMarcus2022/08/07 10:30 PM
                      Rebirth of the 68k archBrett2022/08/07 11:31 PM
                        Rebirth of the 68k archMarcus2022/08/08 12:46 AM
                  Rebirth of the 68k archAnon2022/08/07 01:57 PM
                    Rebirth of the 68k archBrett2022/08/07 04:37 PM
                      68K was not a kludgeMark Roulo2022/08/07 05:05 PM
                        68K was not a kludgeBrett2022/08/07 08:56 PM
                          68K was not a kludgenone2022/08/08 12:00 AM
                            rich man's VAX and more O.T.Michael S2022/08/08 01:44 AM
                              rich man's VAX and more O.T.none2022/08/08 01:51 AM
                Rebirth of the 68k archBrett2022/08/10 10:59 PM
                  Rebirth of the 68k archUngo2022/08/11 02:53 AM
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                      Rebirth of the 68k archrwessel2022/08/11 12:02 PM
            I hope you find something, but there are challengesAdrian2022/08/03 11:07 PM
              I hope you find something, but there are challengesEtienne2022/08/04 04:15 AM
          I hope you find something, but there are challengesAnon2022/08/03 04:15 PM
        I hope you find something, but there are challengesblaine2022/08/03 11:03 AM
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