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Groups > comp.lang.forth > #15839

Re: GA144 polyForth

From Paul Rubin <no.email@nospam.invalid>
Newsgroups comp.lang.forth
Subject Re: GA144 polyForth
References <32e7fd8d-7494-4010-a9d5-d9673a3df831@googlegroups.com> <7xtxuhtf3b.fsf@ruckus.brouhaha.com> <k49n48$gmj$1@dont-email.me> <7x7grbh4w8.fsf@ruckus.brouhaha.com> <k4a322$2ob$1@dont-email.me>
Date 2012-09-30 19:56 -0700
Message-ID <7xa9w6lx2n.fsf@ruckus.brouhaha.com> (permalink)
Organization Nightsong/Fort GNOX

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rickman <gnuarm@gmail.com> writes:
>> http://www.youtube.com/results?search_query=greenarrays
> I'll take a look when I get a chance.  Video is my least favorite way
> of getting technical info.

Yeah, I agree with this.  I've looked at a few of the videos and they
have useful content, but I'd rather have readable documentation.

> 8 bitters are just a little better on power (if at all) than 32
> bitters, IIRC. 

Oh that's interesting, I'd figured 32 bitters have 4x as many gates
toggling on each cycle.  It takes more instructions to make stuff happen
with an 8-bitter, but for stuff like UI's that may not matter.  I've
thought 16 bits is a sweet spot for small cpu's running either Forth or C.

> I don't see a lot of value in running a VM on the GA144 at the same
> speed and possibly more power than many MCUs. 

The VM seems like a reasonable approach for complex control stuff
reaching into the GA144 instead of adding an external processor.  Of
course the GA144 makes no sense as a conventional MCU replacement.  It's
only for when there's other stuff you want to do with the rest of the
nodes.  As you know, I agree with you that finding applications for the
rest of the nodes isn't so easy.

> I can't see how providing a C compiler to use with a single VM running
> at similar speeds to an 8 bit MCU will be any real incentive to use
> the GA144 and it would be tons of work.  Forth is not a bad language
> for developing high level code and it is not hard to learn.  

If you've got a reasonable (virtual) cpu target, and if you don't care
about crappy code coming out, targeting a C compiler isn't that hard.  I
could imagine it helping with user acceptance and letting people port
some of their existing code instead of writing new code.

One issue making things harder for you may be that you were trying to
push the chip's performance to its limits.  It may be easier with
programs where the nodes are mostly idle and plenty fast, and you deal
with speed or space problems by spreading the workload over more nodes.

> They need tools to let people deal with the real problems of using the
> GA144 which seems to be the floor planning. 

Yeah, that calls for automated tools, and more inter-node connectivity
if they make a new version of the chip.

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Thread

GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-09-27 14:16 -0700
  Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-09-29 01:20 -0700
    Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-09-30 11:05 -0400
      Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-09-30 09:06 -0700
        Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-09-30 14:29 -0400
          Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-09-30 19:56 -0700
    Re: GA144 polyForth Coos Haak <chforth@hccnet.nl> - 2012-09-30 21:54 +0200
    Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-01 11:18 -0700
      Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-10-01 23:40 -0700
        Re: GA144 polyForth "Elizabeth D. Rather" <erather@forth.com> - 2012-10-01 21:23 -1000
          Re: GA144 polyForth albert@spenarnc.xs4all.nl (Albert van der Horst) - 2012-10-05 19:19 +0000
        Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-04 23:04 -0700
  Re: GA144 polyForth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-01 10:28 -0500
    Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-01 11:19 -0700
      Re: GA144 polyForth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-03 10:46 -0500
        Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-04 13:46 -0700
  Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-05 22:10 -0700
    Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-10-05 23:17 -0700
      Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-06 05:47 -0700
        Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-07 19:31 -0400
          Re: GA144 polyForth Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-08 20:10 +0200
            Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-08 16:36 -0400
          Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-08 13:31 -0700
            Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-09 13:48 -0400
              Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-09 13:21 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-09 17:08 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-13 07:39 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-13 14:28 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-13 13:37 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-13 16:54 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-13 14:14 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-13 17:30 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-14 02:00 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-14 19:54 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-15 11:03 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-15 16:38 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-16 04:12 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-16 15:46 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-16 23:05 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-17 13:40 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-17 22:54 -0700
            Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-18 14:53 -0400
              Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-18 15:06 -0400
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-18 15:09 -0400
              Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-19 10:43 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-19 17:43 -0400
  Re: GA144 polyForth Mikael Nordman <oh2aun@invalid.com> - 2012-10-06 11:29 +0300
    Re: GA144 polyForth mhx@iae.nl (Marcel Hendrix) - 2012-10-06 11:14 +0200
      Re: GA144 polyForth Mikael Nordman <oh2aun@invalid.com> - 2012-10-06 16:08 +0300
    Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-10-07 10:57 -0700

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