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Re: questions re Javascript

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From Eternal Hope <laughingspam99@gmail.com>
Newsgroups comp.lang.java.programmer
Subject Re: questions re Javascript
Date Fri, 25 Sep 2015 03:46:00 +0100
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On 24/09/2015 21:58, Eric Sosman wrote:
> On 9/24/2015 3:10 PM, Eternal Hope wrote:
>>
>> Well when I went to school (jeez, was it *that* long ago) a compiled
>> language was one where the compiler took source code as input and
>> produced native machine code that was directly executable on the
>> underlying hardware as output.
>
>      In -- let's see, 2015 minus 1966 that's forty-nine years --
> of writing computer programs for many machines in many languages,
> I have encountered only two compilers of that description.  (Most
> folks would have called them "assemblers" rather than "compilers,"
> but an assembler is just a compiler for a particularly low-level
> source language.)  All the other compilers I've met have produced
> some kind of intermediate output that required further processing --
> "linking" or "loading" at the very least -- before execution.

You mean 'object code' I guess don't you as in the .o files produced 
when you compile C code but omit the linking phase  ... details, the 
object code produced is exactly as machine specific as the resulting 
'fixed up' eventual executable code, you should know this, I suspect you do.

>      Nearly that long ago I encountered my first microcoded machine.
> Riddle me this: If compiling/linking/loading fills such a machine's
> memory with instructions and starts them running, are they "native"
> or are they just being interpreted by the microcode?

Everything eventually relies on the microcode doedn't it RISC or CISC, 
what's executed *in* the processor is always microcode*, that's what 
processors do, execute microcode, using your argument everything and 
anything that isn't microcode stored in ROM 'in' the processor is 
interpreted.
[*prehistoric oddities notwithstanding]

>      Also, at about that time I ran into my first emulator: It ran
> on an IBM S/360 and impersonated an IBM 1620.  What does this do
> to your definition of "compiler?"  Does the 1620's compiler cease
> to be a compiler if its output is run on the emulator instead of
> on the 1620 hardware?

Is the emulator capable of being ru on the hardware of a different 
architecture without being re-compiled

> And if you then run it on the 1620 again,
> does the non-compiler regain its former compilerhood?
>
>      The distinction between "compiler" and "interpreter" has been
> blurred over the years, as layers of abstraction have grown deeper
> and as the underlying hardware has gotten ever more "under" with
> each technology generation.  Nowadays, it's turtles all the way down.

The only thing that's blurred here is the obfuscation emitted by your 
pre-processor :-)



-- 
Laughing Spam Fritter

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Thread

questions re Javascript rdelaney2001@gmail.com - 2015-09-01 15:26 -0700
  Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-01 23:26 +0000
    Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-02 10:00 +0100
      Re: questions re Javascript e.d.programmer@gmail.com - 2015-09-02 05:32 -0700
        Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-03 20:17 -0400
          Re: questions re Javascript e.d.programmer@gmail.com - 2015-09-04 05:33 -0700
            Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-05 22:42 -0400
  Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-01 20:00 -0400
  Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-05 20:40 +0100
    Re: questions re Javascript Lew <lewbloch@gmail.com> - 2015-09-23 16:10 -0700
      Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-24 10:40 +0100
        Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-24 11:21 +0000
          Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-24 20:10 +0100
            Re: questions re Javascript Lew <lewbloch@gmail.com> - 2015-09-24 13:18 -0700
              Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-24 19:40 -0400
                Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-25 01:15 +0000
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-24 22:25 -0400
                Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-25 03:46 +0100
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-25 09:59 -0400
                Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-25 15:32 +0100
                Re: questions re Javascript Lew <lewbloch@gmail.com> - 2015-10-02 13:02 -0700
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-02 16:24 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-02 23:02 -0400
                Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-10-03 13:30 +0100
                Re: questions re Javascript Lew <lewbloch@gmail.com> - 2015-10-04 21:31 -0700
                Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-10-05 07:48 +0100
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-05 20:53 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-03 10:46 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-05 21:00 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-05 21:19 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-05 22:26 -0400
              Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-25 15:32 +0100
            Re: questions re Javascript Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-09-24 16:58 -0400
              Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-24 21:45 +0000
              Re: questions re Javascript Jeff Higgins <jeff@invalid.invalid> - 2015-09-24 18:27 -0400
              Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-24 19:53 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-24 22:03 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-24 22:34 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-24 22:46 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-25 09:56 -0400
                Re: questions re Javascript Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-09-25 10:15 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-25 11:44 -0400
                Re: questions re Javascript Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-09-25 14:09 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-25 15:15 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-27 20:45 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-27 22:48 -0400
                Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-28 03:29 +0000
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-28 00:02 -0400
                Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-28 11:33 +0000
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-28 10:44 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-27 20:42 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-27 22:51 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-27 20:38 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-27 22:59 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-02 22:47 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-03 10:48 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-02 22:53 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-03 10:52 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-05 21:03 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-05 21:25 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-05 21:41 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-05 22:11 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-05 22:19 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-05 22:27 -0400
                Re: questions re Javascript Jeff Higgins <jeff@invalid.invalid> - 2015-09-24 22:30 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-24 22:42 -0400
                Re: Aho, A. V., & Ullman, J. D. (1972). The theory of parsing, translation, and compiling. Englewood Cliffs, N.J: Prentice-Hall. Jeff Higgins <jeff@invalid.invalid> - 2015-09-24 23:26 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-24 23:07 -0400
                Re: questions re Javascript Jeff Higgins <jeff@invalid.invalid> - 2015-09-24 23:55 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-27 20:46 -0400
                Re: questions re Javascript e.d.programmer@gmail.com - 2015-09-25 05:20 -0700
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-27 20:54 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-27 23:05 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-02 22:36 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-03 10:57 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-10-05 21:10 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-10-05 21:27 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-27 23:19 -0400
              Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-25 03:46 +0100
            Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-24 23:35 -0400
        Re: questions re Javascript Lew <lewbloch@gmail.com> - 2015-09-24 13:10 -0700
          Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-24 19:55 -0400
            Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-25 00:48 +0000
              Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-24 20:55 -0400
                Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-25 11:17 +0000
                Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-25 12:30 +0100
                Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-25 17:00 +0000
                Re: questions re Javascript Jeff Higgins <jeff@invalid.invalid> - 2015-09-25 14:03 -0400
                Re: questions re Javascript Jeff Higgins <jeff@invalid.invalid> - 2015-09-25 14:14 -0400
                Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-25 19:59 +0000
                Re: questions re Javascript Jeff Higgins <jeff@invalid.invalid> - 2015-09-25 17:13 -0400
                Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-25 22:15 +0000
                Re: questions re Javascript Lew <lewbloch@gmail.com> - 2015-10-02 13:07 -0700
                Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-10-03 16:48 +0100
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-25 10:02 -0400
                Re: questions re Javascript Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-25 17:32 +0000
              Re: questions re Javascript Eternal Hope <laughingspam99@gmail.com> - 2015-09-25 03:45 +0100
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-25 10:13 -0400
            Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-24 21:58 -0400
              Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-24 22:34 -0400
              Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-24 22:35 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-24 22:51 -0400
                Re: questions re Javascript Arne Vajhøj <arne@vajhoej.dk> - 2015-09-24 23:00 -0400
                Re: questions re Javascript Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-25 10:17 -0400
  Re: questions re Javascript Tim Slattery <tim@risingdove.com> - 2015-09-24 12:04 -0400

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