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Groups > comp.lang.forth > #44526
| Date | 2016-01-02 11:53 +0000 |
|---|---|
| From | Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> |
| Newsgroups | comp.lang.forth |
| Subject | Re: offete.com offline? |
| Message-ID | <20160102115335.45b68e69@t500> (permalink) |
| References | <f879835c-2f54-44f4-9d9d-82a8dbb9715b@googlegroups.com> <ad3f2f77-587e-41f9-bd52-e3a935b5be27@googlegroups.com> |
On Fri, 1 Jan 2016 11:03:55 -0800 (PST)
dave.lindbergh@gmail.com wrote:
> I'd like to get a copy of "Footsteps In An Empty Valley".
>
I thought I had a copy, but can't find it. I found "More on
Forth Engines" from Sep 1995. This has 20 pages on the MuP21
Video Coprocessor. I could scan if anyone is interested.
> I'm writing my own Forth - for the first time - and would like
> look at some of the new ideas Chuck put into cmForth.
>
Both the above publications are primarily about Forth hardware.
If this interests you, then the b16[1] is a proven practical
version of Chuck's latest few designs. If you are interested in
the Novix style processor, the the j1[2] is a good match.
> I'm also interested if anybody has written a summary of the
> new ideas in Chuck's later Forths - Machine Forth, OK 386,
> ColorForth, etc.
Chuck introduced address registers A, B, Top-Of-Return-Stack.
These increase flexibility in his compact hardware, and allow "@"
and "!" to be factored into instructions which each can complete
in his hardware in a single clock cycle.
His looping primitive is simpler than DO ... LOOP as it
starts/ends at zero.
Chuck's instruction names are as short as possible, so, for
example, "XOR" is called "OR"(!!!).
There are software models of some of Chucks system software which
you can try out, to get the flavour. [3]
In recent decades Chucks work on forth has been tightly tied to
his own hardware Stack Engine designs. Very recently he seems to
be most concerned about his health, and avoiding the detrimental
effects of regular health care(/neglect?). [4]
> Anybody how I can get in touch with Dr. Ting to get a copy of
> "Footsteps"?
>
> If he's no longer selling copies on Offete, would Dr. Ting
> perhaps give permission for a scan and PDF distribution of the
> book online for free?
This was discussed recently, but I've not seen a simple answer
to this question yet.
Jan Coombs
--
[1] bernd-paysan.de/b16.html
[2] http://www.excamera.com/sphinx/fpga-j1.html
http://www.excamera.com/sphinx/article-j1a-swapforth.html
[3] http://www.inventio.co.uk/Forth.html
at bottom of page, under 'colorForth'
[4] https://youtu.be/_4zZsHmhTPY
Long video ~1.5 hrs in?
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Re: offete.com offline? Jason Damisch <jasondamisch@yahoo.com> - 2015-09-18 10:07 -0700
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Re: offete.com offline? dave.lindbergh@gmail.com - 2016-01-01 11:03 -0800
Re: offete.com offline? Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-01-02 11:53 +0000
Re: offete.com offline? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-01-02 16:23 +0000
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