Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started

From	rickman <gnuarm@gmail.com>
Newsgroups	comp.lang.forth
Subject	Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started
Date	2017-04-24 02:20 -0400
Organization	A noiseless patient Spider
Message-ID	<odk59e$l2d$1@dont-email.me> (permalink)
References	(5 earlier) <odijm0$d1d$1@dont-email.me> <odj1os$ns$1@dont-email.me> <odjh0m$eid$1@dont-email.me> <odjljl$hio$1@dont-email.me> <odjpg9$qlo$1@dont-email.me>

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On 4/23/2017 10:59 PM, Cecil Bayona wrote:
> On 4/23/2017 8:52 PM, rickman wrote:
>> On 4/23/2017 8:34 PM, Cecil Bayona wrote:
>>
>> I don't know what you think makes for an "efficient" design and that
>> is really what is important in determining an instruction set for a
>> CPU. Personally I think making the implementation simpler is more
>> useful than including more Forth primitives in the instruction set.
>> But that is the point, how to weight the two aspects.
>>
>>
>
> Some of these CPUs have very limited amount of RAM, part of being
> efficient is not having to do multiple instructions to do something
> simple, yes it cost more logic, but the device cost the same even if you
> use little logic in it, so it might be worthwhile to add
> multi-instructions to one primitive when possible, the ep32 uses 28% of
> the LUTS on a Brevia 2, but if it used 50% but saved on RAM usage you
> end up ahead.

You have a very limited view of the world.  LUT counts are not the only 
important thing in a design.

Using more bits to allow multiple instructions in one opcode uses more 
memory for each opcode.  Whether it uses more memory overall depends on 
how good a job is done providing useful opcodes and how often 
instructions can be paralleled and how well the tools encode such 
parallel instructions.

I had looked at providing three independent fields in an instruction to 
allow all three execution units in my CPU to run totally in parallel. 
But this could only be useful part of the time.  The three units are the 
data stack unit (with the data path logic), the return stack unit (with 
the memory addressing and loop counting logic) and the instruction fetch 
unit (which handles all instruction addressing, jumps, calls, 
interrupts, etc).  These units can only be usefully used in parallel 
when they can operate in parallel when operating independently.  The 
instruction fetch unit typically just fetches the next instruction or it 
can do jumps, calls and returns, but not when the return stack unit is 
doing anything else.  The return stack unit can do looping control or 
address memory, but not when it is being accessed by the data unit.  You 
get the idea.

In the end getting parallelism to be useful was hard and getting the 
tools to generate useful code would have been beyond my current skills 
other than manually using assembly language.  As a way to improve the 
throughput this might be worthwhile.  I don't see this as especially 
useful for reducing code size and in fact likely would use more memory 
for program storage.

>> In an FPGA design you have the freedom to set the various details of a
>> design.  While the EP32 is an 8 bit data oriented design, other
>> designs can make more efficient use of the FPGA resources.
>>
>>
> A change to use the full width of the memory blocks might be worthwhile,
> it will need more LUTS but there are plenty not in use, 36 bits gives
> you pretty good size integers. On the ep16 18 bits is a nice
> improvement, not only bigger integers but also a bigger address range,
> although I don't think that is an issue, but one thing to note is the
> Brevia 2 has 512KB of 10 ns memory available on the outside which is
> quite a bit.

You seem to think LUT usage is paramount.  I've never found a CPU design 
to be overly demanding on the LUT count.  More important to me is 
getting it to run fast, usually so it will run with the existing system 
clock rather than running at a slower clock.  The throughput of a small 
CPU is often not a problem although that depends entirely on the task at 
hand.  My point is if you really are counting on the speed being X, then 
if it falls a bit short you are hosed.  I much prefer to have lots of 
excess speed so it is never an issue.  Speed is a PITA to deal with if 
you are squeezed.

External memory is never required for my CPU designs other than as 
interfaces to the system.  If you need more than a few kB for program 
storage you are going to spend a lot of time writing code.  I don't have 
that much time usually.

While I find it useful to utilize memory fully when selecting 
instruction widths, I don't limit my data or address size.  If I need 19 
bit addresses I use 19 bit addresses.  My CPU design is pretty much N 
bits.  The only complication is addressing bytes.  For data paths that 
are multiples of 8 or 9 bits I use 8 or 9 bit bytes.  I haven't needed 
anything else as yet.

>>>> One tip that many CPU designs ignore, if you look at the complexity of
>>>> the decoding circuit, instructions that use multiple clock cycles
>>>> increase greatly that complexity.  A 5 or 6 bit instruction with no
>>>> timing data is very easy to decode.  Add multiple clock cycles and you
>>>> add counter bits that increase greatly the decoding logic.  This both
>>>> consumes resources and adds timing delays.  So a CPU design that is
>>>> totally single clock cycle is highly desirable.  That has been one of
>>>> the more difficult goals to meet in my designs because it impacts many
>>>> things such as the handling of interrupts and memory access.
>>>>
>>> The J1 is a nice design in that regard in that it has a ton of
>>> instructions some of them are actually multiple instructions in one work
>>> at no extra cost that run in one clock, some implementations with extra
>>> features use 140 lines of Verilog
>>
>> All processors have multiple functional units.  How these units are
>> used in instructions and how they map to Forth instructions vary.  I
>> like to try to keep the multiple functional units busy when possible,
>> but that requires a less encoded instruction format using more memory
>> for each instruction.  The trick is to make it pay by getting more
>> done in each instruction.
>>
>
> The horizontal decoding of the instruction on the J1 makes it possible
> to execute multiple instructions in one clock but it uses 16 bits to the
> instruction with one of those 16 bits being unused (room for expansion
> here). Even the ep32 has room for more simultaneous execution but one
> need the full 6 bits to implement more primitives that combine multiple
> actions.

The J1 has very limited support for multiple "instructions" in a single 
opcode.  Meanwhile it is using a full 16 bits for each instruction.  It 
does manage to have higher code density than the Xilinx MicroBlaze CPU.

> I was going to start learning VHDL but looking at some FPGA
> implementations I see that Verilog has simpler code although I gather
> that VHDL helps prevent a lot of dumb mistakes. So after I finish my
> current software project enough to start being useful I will try the J1
> in Verilog and see how that works out. Eventually an 18 bit J1 might be
> and interesting modification.

I have used Verilog but do not call myself a Verilog programmer.  I 
don't know that VHDL strong typing is such a boon to error catching.  I 
think it is a big PITA when learning, but once you get the hang of 
explicit type indication and conversions (and a few other things VHDL 
forces you to do) I believe it is more the mindset that helps to prevent 
errors.  I don't know this isn't possible in Verilog as well.

The main difference is in the test bench facility I think.  VHDL lets 
you write very good test benches while I've been told you need to use 
System Verilog to more easily write good test benches in Verilog.

-- 

Rick C

Thread

Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started JUERGEN <epldfpga@aol.com> - 2017-04-21 00:49 -0700
  Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Paul Rubin <no.email@nospam.invalid> - 2017-04-21 01:17 -0700
    Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started JUERGEN <epldfpga@aol.com> - 2017-04-21 01:47 -0700
  Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-21 18:55 -0400
    Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Clive Arthur <cliveta@nowaytoday.co.uk> - 2017-04-22 19:48 +0100
      Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-22 14:50 -0500
        Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-23 00:23 -0400
          Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-23 11:13 -0500
            Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-23 16:14 -0400
              Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-23 19:34 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-23 21:52 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-23 21:59 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-24 02:20 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 04:04 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-24 13:40 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 14:41 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-24 18:22 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 15:28 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-24 18:44 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-24 19:34 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 16:41 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-24 20:36 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 04:44 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 12:41 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 10:03 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-24 12:20 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-24 14:12 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-24 15:13 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-24 16:59 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 14:35 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-24 17:19 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 15:36 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Mark Wills <markwills1970@gmail.com> - 2017-04-25 01:26 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 11:21 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 09:50 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 12:37 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 14:11 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 13:51 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 15:14 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 14:15 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 11:34 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 11:38 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 11:39 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 14:00 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 15:15 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 12:27 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 16:04 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 13:36 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 17:03 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 12:42 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 12:55 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 15:16 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 14:22 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 15:51 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 13:27 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 13:19 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 11:38 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 13:59 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 12:36 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 14:49 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 14:29 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 16:30 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 15:57 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 17:11 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 14:12 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 17:38 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 16:41 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 15:11 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 17:32 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Mark Wills <markwills1970@gmail.com> - 2017-04-26 03:33 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-26 11:33 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-26 14:05 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-26 17:24 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-26 14:51 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-26 18:29 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-26 16:18 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-26 21:07 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-27 01:52 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Mark Wills <markwills1970@gmail.com> - 2017-04-27 02:10 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-27 02:22 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 11:10 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 11:25 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 11:08 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Alex <alex@rivadpm.com> - 2017-04-27 16:14 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Alex <alex@rivadpm.com> - 2017-04-27 16:17 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 11:46 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-27 14:07 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 17:58 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Paul Rubin <no.email@nospam.invalid> - 2017-04-26 20:34 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 01:07 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Paul Rubin <no.email@nospam.invalid> - 2017-04-27 21:21 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-04-28 08:54 +0000
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-04-28 10:46 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-04-27 10:46 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Lars Brinkhoff <lars.spam@nocrew.org> - 2017-04-27 12:05 +0200
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 11:50 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Lars Brinkhoff <lars.spam@nocrew.org> - 2017-04-28 11:23 +0200
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started john <anon@example.com> - 2017-04-27 11:43 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 11:57 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 11:21 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 11:58 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-04-28 07:53 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-04-28 22:31 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-28 20:14 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-04-30 16:08 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-04-29 13:48 +0000
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-29 10:45 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-04-27 15:49 +0000
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-04-29 00:27 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-28 20:28 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-04-29 14:15 +0000
                Stack processor address regs .    was Ting's EP32 32 Bit Processor Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-05-01 13:45 +0100
                Re: Stack processor address regs .    was Ting's EP32 32 Bit Processor anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-02 13:15 +0000
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started jim.brakefield@ieee.org - 2017-04-28 18:20 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Coos Haak <htrofhc@gmail.com> - 2017-04-29 13:00 +0200
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-04-29 11:47 +0000
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Coos Haak <htrofhc@gmail.com> - 2017-04-29 15:02 +0200
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started jim.brakefield@ieee.org - 2017-04-30 18:32 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-26 20:40 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 01:21 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-26 21:14 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-27 02:17 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Mark Wills <markwills1970@gmail.com> - 2017-04-27 05:05 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started john <anon@example.com> - 2017-04-27 13:35 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Mark Wills <markwills1970@gmail.com> - 2017-04-27 05:42 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Alex <alex@rivadpm.com> - 2017-04-27 14:00 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Mark Wills <markwills1970@gmail.com> - 2017-04-27 06:04 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Alex <alex@rivadpm.com> - 2017-04-27 15:31 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 12:26 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Julian Fondren <julian.fondren@gmail.com> - 2017-04-29 08:04 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started john <anon@example.com> - 2017-04-27 10:30 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 12:32 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started john <anon@example.com> - 2017-04-28 12:01 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-26 21:34 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-27 01:26 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Paul Rubin <no.email@nospam.invalid> - 2017-04-27 21:25 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-28 02:50 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started pahihu <pahihu@gmail.com> - 2017-04-28 00:23 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-04-28 07:46 +0000
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Mark Wills <markwills1970@gmail.com> - 2017-04-28 02:25 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-28 05:35 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Walter Banks <walter@bytecraft.com> - 2017-04-28 14:55 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 13:58 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-04-26 04:11 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-04-25 19:54 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 14:32 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-04-25 23:25 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 14:40 -0500
          Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Paul Rubin <no.email@nospam.invalid> - 2017-04-23 14:27 -0700
            Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-23 20:35 -0400
              Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Paul Rubin <no.email@nospam.invalid> - 2017-04-23 19:09 -0700
          Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Clive Arthur <cliveta@nowaytoday.co.uk> - 2017-04-25 15:33 +0100
            Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Walter Banks <walter@bytecraft.com> - 2017-04-25 13:20 -0400
              Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 14:00 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Walter Banks <walter@bytecraft.com> - 2017-04-26 14:27 -0400
            Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 13:58 -0400
              Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Lars Brinkhoff <lars.spam@nocrew.org> - 2017-04-25 20:15 +0200
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 15:07 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Lars Brinkhoff <lars.spam@nocrew.org> - 2017-04-25 21:37 +0200
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-04-26 14:28 +0000
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-26 12:17 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Clive Arthur <cliveta@nowaytoday.co.uk> - 2017-04-26 18:48 +0100
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Lars Brinkhoff <lars.spam@nocrew.org> - 2017-04-26 21:15 +0200
              Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Paul Rubin <no.email@nospam.invalid> - 2017-04-25 18:39 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-26 00:25 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Lars Brinkhoff <lars.spam@nocrew.org> - 2017-04-26 09:58 +0200
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-26 17:43 -0400
        Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 13:10 -0700
          Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 16:42 -0400
            Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 16:06 -0500
              Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 14:25 -0700
              Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 17:52 -0400
      Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-23 00:18 -0400
  Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-22 13:28 -0700
    Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started JUERGEN <epldfpga@aol.com> - 2017-04-23 05:06 -0700
      Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-23 06:38 -0700
        Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started JUERGEN <epldfpga@aol.com> - 2017-04-23 11:24 -0700
          Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-23 12:17 -0700
            Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started JUERGEN <epldfpga@aol.com> - 2017-04-23 23:43 -0700
              Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 04:16 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started JUERGEN <epldfpga@aol.com> - 2017-04-24 06:18 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 14:28 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-24 17:00 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 15:10 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-24 17:43 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 16:40 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-24 21:16 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-25 09:42 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Cecil Bayona <cbayona@cbayona.com> - 2017-04-25 12:22 -0500
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-24 14:28 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Ilya Tarasov <ilya74.tarasov@gmail.com> - 2017-04-24 15:03 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 15:39 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-25 20:44 -0400
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started hughaguilar96@gmail.com - 2017-04-25 22:25 -0700
                Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started rickman <gnuarm@gmail.com> - 2017-04-26 01:38 -0400

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