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Re: OKAD?

From Jan Coombs <jenfhaomndgfwutc@murmic.plus.com>
Newsgroups comp.lang.forth
Subject Re: OKAD?
Date 2016-09-14 21:02 +0100
Organization A noiseless patient Spider
Message-ID <20160914210231.2024c373@HP-6550b> (permalink)
References (13 earlier) <nrb434$gu5$1@dont-email.me> <20160914103350.6ef344c2@HP-6550b> <nrb6q6$o3f$1@dont-email.me> <20160914113338.42e4566d@HP-6550b> <nrc0pn$of6$1@dont-email.me>

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On Wed, 14 Sep 2016 13:18:48 -0400
rickman <gnuarm@gmail.com> wrote:

> On 9/14/2016 6:33 AM, Jan Coombs wrote:
> > On Wed, 14 Sep 2016 05:55:20 -0400
> > rickman <gnuarm@gmail.com> wrote:
> >
> >> On 9/14/2016 5:33 AM, Jan Coombs wrote:
> >>> On Wed, 14 Sep 2016 05:08:52 -0400
> >>> rickman <gnuarm@gmail.com> wrote:
> >>>
> >>>> Some people insist in referring to the delay line
> >>>> technique as a "ring oscillator".
> >>>
> >>> Maybe Chucks ring oscillator has both taps and gating, and
> >>> is the only delay element in each processor core?
> >>
> >> Except that it doesn't oscillate.  When the CPU is waiting
> >> it stops.
> >
> > If you have gates in the ring oscillator loop you can pause
> > or stop the clock at any phase.
> >
> > Chuck must have at least one gate to be able to pause it.
> 
> I don't get why you feel it has to be a "ring oscillator".
> There are many different timings each one adjusted to match
> the circuit it is timing. 

I like your ASCIIart, but cannot quickly see how it affects the
operation cycle of a S40C18 or similar processor. 

Perhaps we should build a model in HDL with realistic gate
delays and see if we can guess any closer, or even reproduce
the instruction timing as in the data sheet. 

I think that it might be possible to model asynchronous logic on
ProASIC3 and similar parts, so the library components for these
might be a practical starting point if we hoped to reproduce
anything close to Chuck's work. 

Jan Coombs

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Thread

OKAD? Mux <Yvo.Zoer@gmail.com> - 2016-08-22 15:07 -0700
  Re: OKAD? Paul Rubin <no.email@nospam.invalid> - 2016-08-22 15:31 -0700
  Re: OKAD? Bernd Linsel <bl1@gmx.com> - 2016-08-23 01:45 +0200
    Re: OKAD? Mux <Yvo.Zoer@gmail.com> - 2016-08-23 13:55 -0700
  Re: OKAD? JUERGEN <epldfpga@aol.com> - 2016-09-09 00:18 -0700
    Re: OKAD? JUERGEN <epldfpga@aol.com> - 2016-09-09 02:47 -0700
      Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-09 11:52 -0400
        Re: OKAD? JUERGEN <epldfpga@aol.com> - 2016-09-09 10:22 -0700
        Re: OKAD? Mark Wills <markwills1970@gmail.com> - 2016-09-09 14:57 -0700
          Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-09 18:02 -0400
            Re: OKAD? Paul Rubin <no.email@nospam.invalid> - 2016-09-09 15:33 -0700
              Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-10 01:55 -0400
              Re: OKAD? mhx@iae.nl - 2016-09-09 23:36 -0700
                Re: OKAD? Jecel <jecel@merlintec.com> - 2016-09-12 13:48 -0700
                Re: OKAD? Paul Rubin <no.email@nospam.invalid> - 2016-09-12 14:17 -0700
                Re: OKAD? Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-09-13 00:01 +0100
                Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-13 14:54 -0400
                Re: OKAD? Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-09-14 08:50 +0100
                Re: OKAD? Paul Rubin <no.email@nospam.invalid> - 2016-09-14 01:15 -0700
                Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-14 05:08 -0400
                Re: OKAD? Paul Rubin <no.email@nospam.invalid> - 2016-09-14 02:14 -0700
                Re: OKAD? Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-09-14 10:33 +0100
                Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-14 05:55 -0400
                Re: OKAD? Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-09-14 11:33 +0100
                Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-14 13:18 -0400
                Re: OKAD? Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-09-14 21:02 +0100
                Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-14 17:20 -0400
                Re: OKAD? Jecel <jecel@merlintec.com> - 2016-09-15 10:54 -0700
                Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-15 17:28 -0400
                Re: OKAD? Jecel <jecel@merlintec.com> - 2016-09-16 10:38 -0700
                Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-17 17:05 -0400
                Re: OKAD? Jecel <jecel@merlintec.com> - 2016-09-21 13:42 -0700
                Re: OKAD? rickman <gnuarm@gmail.com> - 2016-09-21 18:03 -0400
                Re: OKAD? Jecel <jecel@merlintec.com> - 2016-09-23 13:21 -0700
    Re: OKAD? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-09-09 14:01 +0200
      Re: OKAD? JUERGEN <epldfpga@aol.com> - 2016-09-09 04:57 -0700
  Re: OKAD? Ilya Tarasov <ilya74.tarasov@gmail.com> - 2016-09-13 09:18 -0700
    Re: OKAD? JUERGEN <epldfpga@aol.com> - 2016-09-13 10:09 -0700
      Re: OKAD? Ilya Tarasov <ilya74.tarasov@gmail.com> - 2016-09-16 17:24 -0700
        Re: OKAD? JUERGEN <epldfpga@aol.com> - 2016-09-17 02:38 -0700

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