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/  Forum Index
   /  Amiga OS4 Hardware
      /  PPC Instruction Set Now Open Source
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bison 
Re: PPC Instruction Set Now Open Source
Posted on 29-Aug-2019 18:35:49
#61 ]
Super Member
Joined: 18-Dec-2007
Posts: 1371
From: N-Space

@thread

The LWN article is out from behind the paywall:

OpenPOWER opens further

There's some mention of running a softcore implementation on FPGAs.

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Rose 
Re: PPC Instruction Set Now Open Source
Posted on 30-Aug-2019 21:05:49
#62 ]
Cult Member
Joined: 5-Nov-2009
Posts: 603
From: Unknown

@bison

Quote:

bison wrote:
@thread

The LWN article is out from behind the paywall:

OpenPOWER opens further

There's some mention of running a softcore implementation on FPGAs.


Yup, running simple version on +$4k fpga.

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asymetrix 
Re: PPC Instruction Set Now Open Source
Posted on 30-Aug-2019 23:19:01
#63 ]
Cult Member
Joined: 9-Mar-2003
Posts: 813
From: United Kingdom

@thread

Can you imagine if one built on the Minimig project to use the 1.5 GHZ FPGA

mouser - Altera Arria 10 FPGA 10AX016C4U19E3SG

I know its expensive at ~ 300 + board, but in means a fast 68k or PPC of our own for around 500.

It means a new level of productivity, technically it can be done, for our aging machines.

Maybe a Patreon could be set up.

Last edited by asymetrix on 30-Aug-2019 at 11:21 PM.

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kolla 
Re: PPC Instruction Set Now Open Source
Posted on 31-Aug-2019 6:26:42
#64 ]
Super Member
Joined: 21-Aug-2003
Posts: 1233
From: Trondheim, Norway

@bison

Quote:

There's some mention of running a softcore implementation on FPGAs.


I recall some FPGA based router equipment we had in for testing, like 10-12 years ago, was using part of the FPGA for a softcore PPC which was used to run the management operating system. So the concept is not new.

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megol 
Re: PPC Instruction Set Now Open Source
Posted on 31-Aug-2019 13:20:13
#65 ]
Regular Member
Joined: 17-Mar-2008
Posts: 307
From: Unknown

@asymetrix

Quote:

asymetrix wrote:
@thread

Can you imagine if one built on the Minimig project to use the 1.5 GHZ FPGA

mouser - Altera Arria 10 FPGA 10AX016C4U19E3SG

I know its expensive at ~ 300 + board, but in means a fast 68k or PPC of our own for around 500.

It means a new level of productivity, technically it can be done, for our aging machines.

Maybe a Patreon could be set up.

Don't know if you are joking or misinformed? Arria 10 have a clock network rated at 800MHz and normal designs will have far lower frequency in practice, compare to the Cyclone III as used in Vampire accelerators with maximum clock frequency of 500MHz. Last I looked Apollo cores run at around 110MHz?

There are faster FPGAs ( https://www.achronix.com/ ) but those are extremely expensive and require deeply pipelined designs to reach higher performance.

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Rose 
Re: PPC Instruction Set Now Open Source
Posted on 31-Aug-2019 14:49:27
#66 ]
Cult Member
Joined: 5-Nov-2009
Posts: 603
From: Unknown

@kolla

Quote:

kolla wrote:
@bison

Quote:

There's some mention of running a softcore implementation on FPGAs.


I recall some FPGA based router equipment we had in for testing, like 10-12 years ago, was using part of the FPGA for a softcore PPC which was used to run the management operating system. So the concept is not new.


More likely had one of Xilinx's that had real 440 integrated with fpga. I remember seeing one where routers OS was running on 440 and fpga was used for fancy acceleration.

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kolla 
Re: PPC Instruction Set Now Open Source
Posted on 31-Aug-2019 16:32:57
#67 ]
Super Member
Joined: 21-Aug-2003
Posts: 1233
From: Trondheim, Norway

@Rose

That sounds quite plausible, yes. One can fantasise about running OS4 Classic on such a system with a Minimig core on the FPGA, hehe :)

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bison 
Re: PPC Instruction Set Now Open Source
Posted on 11-Sep-2019 19:03:04
#68 ]
Super Member
Joined: 18-Dec-2007
Posts: 1371
From: N-Space

@thread

Semi-OT question: Is anyone currently manufacturing a Power ISA SoC with an on-board GPU?

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