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Groups > comp.lang.forth > #34619

Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core?

From Bernd Paysan <bernd.paysan@gmx.de>
Newsgroups comp.lang.forth
Subject Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core?
Date 2014-11-25 01:52 +0100
Organization A noiseless patient Spider
Message-ID <m50js6$jrv$1@dont-email.me> (permalink)
References (8 earlier) <7xk32ka08d.fsf@ruckus.brouhaha.com> <rcKdnZ8yGLRIOu7JnZ2dnUU7-eudnZ2d@supernews.com> <7xegssi7mq.fsf@ruckus.brouhaha.com> <PZydnTJDT6-DLO7JnZ2dnUU7-fOdnZ2d@supernews.com> <7xbnnwxlf1.fsf@ruckus.brouhaha.com>

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Paul Rubin wrote:

> "Elizabeth D. Rather" <erather@forth.com> writes:
>> Yes, I know. My point is that I would prefer it not to trap, because
>> there's nothing really useful you can do at that point. Better to
>> design your application so that's not relevant.
> 
> In the real world we find that integer overflow is a perennial source of
> bugs in programs, and that trapping overflow in software is expensive
> enough that people usually don't compile code that way.  Regehr argues
> that the right solution is for cpus to include hardware traps for
> integer overflow.  Andrew and some others say that this would impact
> performance or otherwise add significant cost.  I'm trying to understand
> the reason for that, since cpus already include multiple arithmetic
> traps such as zero-divide and various FPU signalling conditions.

The question is probably how many of these possible traps your CPU can 
handle simultaneously, so how that impacts the instruction scheduler - and 
how much information you need to keep on trapable instructions to roll them 
back.

I think if you do it right with an OOO execution unit, every instruction can 
possibly trap with a uniform way of dealing with that.  Traps on current 
CPUs are pretty expensive in numbers of cycles wasted, but only if they 
actually happen.  Of course, each instruction which can trap needs more 
informations attached, so it consumes more resources on the chip.  If you 
have "fire&forget" types of instructions, where you are always sure that 
they will complete, you can spare the resources on those paths through the 
execution unit.  This allows to make the integer unit considerably smaller 
(just ALU and a rather simple reservation station) - you do the register 
renaming, but you don't have to remember how to roll back if there's an 
exception.

From the look of it, the ARMv8 designer have made some effort to reduce the 
number of traps, e.g. even division by zero doesn't trap.  If you want to 
catch that error, ARM recommends that you put a conditional branch after 
executing the division, which will be hidden in the long time the division 
instruction takes (the conditional branch is usually not taken).

IMHO, it's way easier to have a trap on overflow on an in-order VLIW 
machine.  There, if one operation traps, the entire instruction word is 
aborted, i.e. all results don't get written.  That is the case with any 
exception, so you can have all instruction slots trap with very little 
additional costs (just the or tree to figure out that there is a trap 
event).  There probably still are costs with that, e.g. wire delay slowdown 
because you now have more sources of the trap, or additional shadow 
registers in the bypass logic.

In general, it is wise to assume that every additional feature comes at a 
cost, so the TRANSTAAFL rule applies.  For the instruction set designer, 
it's wiser to implement simple instructions with the least amount of 
possible side-effects, and construct more complex operations out of 
sequences of instructions.

Another point is a typical chicken&egg problem: as instruction set designer, 
you think about stuff that popular current programming languages support.  
For example, if you want to generate trap-on-overflow, the number of types 
you need for a given word size goes from two to three: You want signed, 
unsigned, and mod 2^n.  The latter is e.g. important for cryptocores which 
use add, rotate and xor; these additions are meant to work on mod 2^n, not 
on signed or unsigned, so an overflow just can't happen.  This also means 
that you won't get support for overflow traps into these mainstream 
languages soon, because that will break way too many code.  You can try 
using gcc with -ftrapv, and watch your programs crash at places, where 
wraparound was intended.

Sidenode: ARMv8 has four options on logical operations with shift: shift 
left, shift right, arithmetic shift right, and rotate right.  But it doesn't 
have the rotate right operation on add and sub.  However, if you look at 
somewhat popular crypto cores like ChaCha, this uses add+rotated input.  
That sort of thing IMHO is crazy: obviously, they have the rotating logic 
there.  They just don't use it on additions.  ChaCha could be modified to 
rotate the inputs on xors instead, but that would be an incompatible 
algorithm.  Here, chicken and egg are arguable different: ChaCha has rotated 
inputs to the adder, the similar construct Threefish has rotated inputs on 
the xor, and both were cores of promising SHA-3 candidates when ARMv8 was 
developed.  This sort of stuff is something you really should look at when 
you are an ISA designer.

-- 
Bernd Paysan
"If you want it done right, you have to do it yourself"
http://bernd-paysan.de/

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http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? JUERGEN <epldfpga@aol.com> - 2014-11-17 02:26 -0800
  Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul E Bennett <Paul_E.Bennett@topmail.co.uk> - 2014-11-17 14:24 +0000
    Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-17 14:04 -0500
  Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? visualforth@rocketmail.com - 2014-11-17 18:37 -0800
    Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? hughaguilar96@yahoo.com - 2014-11-17 19:58 -0800
    Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-18 04:56 -0600
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-18 19:10 +0100
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-18 14:06 -0600
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? the_gavino_himself <visphatesjava@gmail.com> - 2014-11-23 19:43 -0800
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? "Rod Pemberton" <buzzoff@nonamewhichexists.cmm> - 2014-11-18 16:16 -0500
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? visualforth@rocketmail.com - 2014-11-18 15:49 -0800
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? the_gavino_himself <visphatesjava@gmail.com> - 2014-11-23 19:45 -0800
          Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-23 23:45 -0500
          Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? "Rod Pemberton" <buzzoff@nonamewhichexists.cmm> - 2014-11-24 17:18 -0500
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-23 14:04 +0000
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-23 11:25 -0600
          Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-24 09:36 +0000
            Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-24 06:02 -0600
              Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-24 13:04 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-24 14:50 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-24 14:06 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? "Alex McDonald" <blog@rivadpm.com> - 2014-11-24 16:38 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-24 09:04 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-24 16:16 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-24 12:57 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-25 16:18 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-25 14:40 -0500
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-26 00:48 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-25 19:10 -0500
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-26 02:09 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-26 11:22 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-26 16:11 -0500
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-25 16:57 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-26 03:51 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-27 16:10 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-27 10:39 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-28 15:27 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-28 10:26 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-29 01:03 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-29 15:27 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-29 19:04 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-30 15:48 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-30 17:36 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-03 14:25 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? hughaguilar96@gmail.com - 2014-12-04 20:04 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-04 08:37 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-04 21:39 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-05 03:31 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-05 18:33 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-05 14:56 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-11-29 13:07 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-29 16:00 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-29 11:21 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-30 15:26 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-30 12:49 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-24 18:34 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-25 16:04 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-25 14:48 -0500
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-11-26 00:49 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-25 21:07 -0500
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-26 11:45 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul E Bennett <Paul_E.Bennett@topmail.co.uk> - 2014-11-26 12:44 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-26 14:11 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-26 16:17 -0500
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-26 23:27 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-27 12:28 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-27 09:20 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-27 15:59 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-27 10:42 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-28 15:44 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-28 10:35 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-29 15:38 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-29 19:10 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-30 16:09 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-30 17:40 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-03 16:47 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-04 21:22 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-05 12:37 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-05 19:02 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-06 12:09 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? JUERGEN <epldfpga@aol.com> - 2014-12-06 06:45 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-06 19:58 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-07 13:39 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-12-07 08:04 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-07 22:52 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-10 12:46 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-11 02:08 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-11 10:20 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-12-11 05:06 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Jan Coombs <Jan-54 <jenfhaomndgfwutc@murmic.plus.com>> - 2014-12-11 17:56 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? "Alex McDonald" <blog@rivadpm.com> - 2014-12-15 15:57 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-12-16 07:53 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? JUERGEN <epldfpga@aol.com> - 2014-12-17 08:49 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-11 23:46 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-12-11 16:24 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Julian Fondren <julian.fondren@gmail.com> - 2014-12-11 17:46 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-12-11 22:20 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-13 00:24 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-12-12 18:39 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-12-13 21:06 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-12-13 22:58 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Mark Wills <markwills1970@gmail.com> - 2014-12-04 03:38 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Horse Shit <puke.aguilar@hughfailure.com> - 2014-12-04 13:29 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? JUERGEN <epldfpga@aol.com> - 2014-11-28 05:36 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-28 10:37 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-26 01:14 +0100
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-23 20:57 -0800
          Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-24 03:59 -0600
            Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-24 02:14 -0800
              Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-24 06:09 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-24 11:04 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? "Elizabeth D. Rather" <erather@forth.com> - 2014-11-24 11:49 -1000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-24 13:57 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? "Elizabeth D. Rather" <erather@forth.com> - 2014-11-24 12:28 -1000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-24 14:50 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? "Elizabeth D. Rather" <erather@forth.com> - 2014-11-24 13:22 -1000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-24 16:15 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? "Elizabeth D. Rather" <erather@forth.com> - 2014-11-24 14:38 -1000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-25 01:52 +0100
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-25 11:43 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-25 03:35 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-25 09:37 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-26 03:57 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-25 11:16 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-25 02:06 -0500
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? "Elizabeth D. Rather" <erather@forth.com> - 2014-11-24 21:40 -1000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-24 23:57 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-25 03:37 -0500
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-25 03:43 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-11-25 15:26 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-25 15:47 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-25 03:30 -0600
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-25 09:32 -0800
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-25 11:11 +0000
              Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-24 12:24 +0000
                Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-25 09:45 -0800
          Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-24 10:17 +0000
  Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-17 23:20 -0500
    Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Raimond Dragomir <raimond.dragomir@gmail.com> - 2014-11-17 23:31 -0800
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-18 02:44 -0500
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Raimond Dragomir <raimond.dragomir@gmail.com> - 2014-11-18 00:18 -0800
          Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-11-18 13:51 +0000
          Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-18 12:06 -0500
          Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Elizabeth D Rather <erather@forth.com> - 2014-11-18 09:23 -1000
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Paul Rubin <no.email@nospam.invalid> - 2014-11-18 08:09 -0800
          Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? rickman <gnuarm@gmail.com> - 2014-11-18 18:01 -0500
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Elizabeth D Rather <erather@forth.com> - 2014-11-17 21:58 -1000
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-11-18 14:04 +0000
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-18 18:53 +0100
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-18 14:15 -0600
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-23 13:40 +0000
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? hughaguilar96@yahoo.com - 2014-11-18 17:48 -0800
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-23 14:24 +0000
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-11-23 16:53 +0000
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? stephen@mpeforth.com (Stephen Pelc) - 2014-11-23 17:26 +0000
    Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? Mark Wills <markwills1970@gmail.com> - 2014-11-18 03:34 -0800
      Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? m.a.m.hendrix@tue.nl - 2014-11-18 04:19 -0800
        Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-23 13:50 +0000
  Re: http://www.lowrisc.org/ Open Core - is the Forth Community involved in this new 64Bit Core? visualforth@rocketmail.com - 2014-11-21 15:42 -0800

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