Re: [ql-developers] K68 Core

2003-07-13 Thread BRANE

Yeah. I have seen it.

A couple of questions/remarks:

-is this legal ? I remember contacting MC regarding making MC68000 in FPGA
some years ago and their answer was a firm NO- they would not allow me to
use 68000 ISA.

- there is a related project somewhere, called IIRC V68000, which has the
same instruction set as 68000 but it isn't binary compatible.

-even if guy gets his off the ground and even if he uses the newest
Spartan-3 FPGA, he will never reach the speeds even comparable with Coldfire
5307, let alone 5407 or the newest, yet-to-be-out 5471 or 5472.

branko


- Original Message - 
From: Phoebus Dokos [EMAIL PROTECTED]
To: QL Developers Mailing List [EMAIL PROTECTED]
Sent: Sunday, July 13, 2003 10:54 PM
Subject: [ql-developers] K68 Core



 Anybody seen this?

 Phoebus

 URL:http://www.opencores.org/projects/k68/

 -- 
 Phoebus Dokos - Undergrad in MIS
 Eberly College of Business - Indiana U. of PA






Re: [ql-developers] K68 Core

2003-07-13 Thread BRANE

I didn't know anything about the price. I plan to finally buid a decent
homebrew machine and I had my eyes on 5407.Nice machine, but nothing really
spectacular and no MMU.

Just the other day I have posted the question to their support service, when
will the 5471 be available, since it has MMU also (besides having  enhanced
core etc). I have got no answer still...

But while searching around, I have stumbled on to superb alternative: MIPS.

Decent core in several versions, supoported by several sources in all
flavours and main sources seem to be hardworking, modest japanese guys
instead of selfimportant pricks at MC.

Check out NEC's offer and even more importantly PMC-Sierra.

These guys rock. Latest incarnation  is a 64 bit machine, has a decent FPU,
256 Kb of L2 cache, works on up to 1 GHz AND IS STILL IN QFP !
Oh, and it churns some 3.5W typicaly !

This thing would run Linux and emulate QL at the same time, even while
powered down ;o)
They have also the faster models, but those are in BGA packing :o)

I'm thinking about using this one and also having smaller, slower, 32 bit
version with FLASH at hand for those microcontroller jobs, where speed is
not so critical, but space, cost and money are...

Also, Hitachi makes nice things, but those are AFAIK not MIPS-compatible


Branko




- Original Message - 
From: Phoebus Dokos [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, July 14, 2003 12:09 AM
Subject: Re: [ql-developers] K68 Core



 On Sun, 13 Jul 2003 23:50:51 +0200, BRANE [EMAIL PROTECTED] wrote:

 
  Yeah. I have seen it.
 
  A couple of questions/remarks:
 
  -is this legal ? I remember contacting MC regarding making MC68000 in
  FPGA
  some years ago and their answer was a firm NO-they would not allow me to
  use 68000 ISA.
 
  - there is a related project somewhere, called IIRC V68000, which has
the
  same instruction set as 68000 but it isn't binary compatible.
 
  -even if guy gets his off the ground and even if he uses the newest
  Spartan-3 FPGA, he will never reach the speeds even comparable with
  Coldfire
  5307, let alone 5407 or the newest, yet-to-be-out 5471 or 5472.
 
  branko
 


 Legality is a big issue. I came across this while I was reading about a
 ZX81-on-a-chip clone (T80 core). I thought that it would be a good
 alternative when Motorola gives up the 68K family. As for the new
 Coldfires... have you seen : a. Their prices?, b. That Motorola won't make
 them really available in anything less than batches of 1000?

 Phoebus


 
  - Original Message - From: Phoebus Dokos [EMAIL PROTECTED]
  To: QL Developers Mailing List [EMAIL PROTECTED]
  Sent: Sunday, July 13, 2003 10:54 PM
  Subject: [ql-developers] K68 Core
 
 
 
  Anybody seen this?
 
  Phoebus
 
  URL:http://www.opencores.org/projects/k68/
 
  -- Phoebus Dokos - Undergrad in MIS
  Eberly College of Business - Indiana U. of PA
 
 
 
 
 



 -- 
 Phoebus Dokos - Undergrad in MIS
 Eberly College of Business - Indiana U. of PA