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Re: What is the absolute smallest instruction set do you need to make a working computer?

Cross-posted to 5 groups.

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On 9/22/2019 12:04 AM, Jeff Barnett wrote:
> I haven't looked at the video but (trying to remember from the 1960s) 
> you need 2 registers and places to branch on either crossing 0. 
> Essentially one register is the right half and the other the left half 
> of the "tape" and you are working with 2 characters, etc., etc.. etc.

This particular computer doesn't have any registers, it works directly 
on memory. Now obviously in the background, the real chip might have 
virtual registers that it uses as a buffer area, but that's completely 
out of the control of the instruction set itself.

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What is the absolute smallest instruction set do you need to make a working computer? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2019-09-21 18:45 -0400
  Re: What is the absolute smallest instruction set do you need to make a working computer? Roger Blake <rogblake@iname.invalid> - 2019-09-22 00:49 +0000
    Re: What is the absolute smallest instruction set do you need to make a working computer?  Arlen    Holder <arlen_h0ldr@arlinghlder.edu> - 2019-09-22 01:21 +0000
      Re: What is the absolute smallest instruction set do you need to make a working computer? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2019-09-22 00:46 -0400
        Re: What is the absolute smallest instruction set do you need to make a working computer? Jeff Barnett <jbb@notatt.com> - 2019-09-21 22:04 -0600
          Re: What is the absolute smallest instruction set do you need to make a working computer? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2019-09-22 01:00 -0400
            Re: What is the absolute smallest instruction set do you need to make a working computer? Jeff Barnett <jbb@notatt.com> - 2019-09-21 23:47 -0600
              Re: What is the absolute smallest instruction set do you need to make a working computer? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2019-09-22 08:59 -0400
                Re: What is the absolute smallest instruction set do you need to make a working computer? Jeff Barnett <jbb@notatt.com> - 2019-09-22 10:52 -0600
    Re: What is the absolute smallest instruction set do you need to make a working computer? "J. P. Gilliver (John)" <G6JPG@255soft.uk> - 2019-09-22 21:07 +0100
  Re: What is the absolute smallest instruction set do you need to make a working computer? VanguardLH <V@nguard.LH> - 2019-09-22 01:26 -0500
    Re: What is the absolute smallest instruction set do you need to make a working computer? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2019-09-22 10:25 -0400
    Re: What is the absolute smallest instruction set do you need to make a working computer? pyotr filipivich <phamp@mindspring.com> - 2019-09-22 08:25 -0700
      Re: What is the absolute smallest instruction set do you need to make a working computer? "J. P. Gilliver (John)" <G6JPG@255soft.uk> - 2019-09-22 21:15 +0100
        Re: What is the absolute smallest instruction set do you need to make a working computer? pyotr filipivich <phamp@mindspring.com> - 2019-09-22 18:36 -0700
          Re: What is the absolute smallest instruction set do you need to make a working computer? Rene Lamontagne <rlamont@shaw.ca> - 2019-09-22 22:31 -0500
            Re: What is the absolute smallest instruction set do you need to make a working computer? pyotr filipivich <phamp@mindspring.com> - 2019-09-23 09:12 -0700

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