Re: who can use a Harris RTX-2000 processor

From	Clive Arthur <cliveta@nowaytoday.co.uk>
Newsgroups	comp.lang.forth
Subject	Re: who can use a Harris RTX-2000 processor
Date	2017-04-12 08:54 +0100
Organization	A noiseless patient Spider
Message-ID	<ockmac$phe$1@dont-email.me> (permalink)
References	<a3eeeb1f-985b-4295-be6c-d48bf5a93ac9@googlegroups.com> <ocjsmo$il6$1@dont-email.me> <87bms2lafo.fsf@nightsong.com> <ock6i1$33k$1@dont-email.me> <8737del198.fsf@nightsong.com>

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On 12/04/2017 05:04, Paul Rubin wrote:
> rickman <gnuarm@gmail.com> writes:
>> I'm good with VHDL, but I prefer to work from specifications rather
>> than trying to divine a spec from poor documentation.  I'm not clear
>> on what is available.

https://www.intersil.com/content/dam/Intersil/documents/hs-r/hs-rtx2010rh.pdf

> The RTX-2000 was space qualified if I'm not confusing it with something
> else, so I'd expect it to be documented out the wazoo.  Maybe it's a
> matter of finding some manuals for it and working from those.  If it
> were me, I'd start with a software emulation.  Ymmv.

The RTX2010 was the rad-hard version, but pretty similar otherwise. 
IIRC it had a multiplier and barrel shifter whereas the RTX2000 had just 
the multiplier.  I think both had 256 deep stacks.

The RTX2001 was a cheaper version and had neither barrel shifter nor 
multiplier, and smaller 64 deep stacks.  I used that one a lot.

> Why is the RTX-2000 interesting anyway?  Do people have old code they
> want to run on it?  Do they want to write new code for a stack processor
> just because it's cool?  If the latter, exact compatibility with the
> RTX-2000 isn't as important.  For that matter, there's always the J1.


Cheers
-- 
Clive

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who can use a Harris RTX-2000 processor "dfnum2@gmail.com" <dfnum3@gmail.com> - 2017-04-09 11:51 -0700
  Re: who can use a Harris RTX-2000 processor mentificium@gmail.com - 2017-04-10 19:04 -0700
  Re: who can use a Harris RTX-2000 processor JUERGEN <epldfpga@aol.com> - 2017-04-11 10:42 -0700
    Re: who can use a Harris RTX-2000 processor Clive Arthur <cliveta@nowaytoday.co.uk> - 2017-04-11 19:25 +0100
      Re: who can use a Harris RTX-2000 processor JUERGEN <epldfpga@aol.com> - 2017-04-12 01:05 -0700
    Re: who can use a Harris RTX-2000 processor Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-04-12 04:18 -0500
      Re: who can use a Harris RTX-2000 processor JUERGEN <epldfpga@aol.com> - 2017-04-12 11:39 -0700
      Re: who can use a Harris RTX-2000 processor JUERGEN <epldfpga@aol.com> - 2017-04-13 03:04 -0700
        Re: who can use a Harris RTX-2000 processor Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-04-13 05:41 -0500
  Re: who can use a Harris RTX-2000 processor rickman <gnuarm@gmail.com> - 2017-04-11 20:37 -0400
    Re: who can use a Harris RTX-2000 processor Paul Rubin <no.email@nospam.invalid> - 2017-04-11 17:46 -0700
      Re: who can use a Harris RTX-2000 processor rickman <gnuarm@gmail.com> - 2017-04-11 23:25 -0400
        Re: who can use a Harris RTX-2000 processor Paul Rubin <no.email@nospam.invalid> - 2017-04-11 21:04 -0700
          Re: who can use a Harris RTX-2000 processor rickman <gnuarm@gmail.com> - 2017-04-12 00:31 -0400
          Re: who can use a Harris RTX-2000 processor Lars Brinkhoff <lars.spam@nocrew.org> - 2017-04-12 07:10 +0200
            Re: who can use a Harris RTX-2000 processor lehs <skydda.barnen@gmail.com> - 2017-04-11 22:29 -0700
          Re: who can use a Harris RTX-2000 processor Clive Arthur <cliveta@nowaytoday.co.uk> - 2017-04-12 08:54 +0100

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