680x0->PPC (or Coldfire)??

[Smith, Gene]

> -----Original Message-----
> From: Joel Sherrill [mailto:joel.sherrill at OARcorp.com]
> Sent: Friday, June 14, 2002 1:08 PM
> To: Smith, Gene
> Cc: 'rtems-users at oarcorp.com'
> Subject: Re: 680x0->PPC (or Coldfire)??
> 
> 
> "Smith, Gene" wrote:
> > 
> > Does anybody out there have any feel for how hard it is to 
> convert from 68k
> > to Power PC or Coldfire? Have a 68020 board that is 98% 
> assemby and might
> > want to upgrade the processor to something 
> newer/faster/lower-power with
> > minimal code rewrite.
> 
> Yikes!! With that much assembly it isn't going to be easy. 
> I have moved applications from the m68020 to the powerpc without
> trouble but they were predominantly in C so the pain was
> minimal.
> 
> Extraction of algorithms into C is probably the best route.
> All device driver code is probably questionable anyway so
> it can 

so it can ...?  Hi Joel, Haven't seen your name pop-up for a while. Did find
something made by some guys in nl which claims to convert 680x0 code (from
an Amiga) to PPC.
http://www.coyoteflux.tmfweb.nl/PPC680x0.html
Not sure how reputable they are (they never answered my email). Anyhow, the
coldfire might be easier to port to and Motorla gives you a assembly
converter for it (PortASM/68k). 
http://e-www.motorola.com/webapp/sps/site/homepage.jsp?nodeId=03M0ylgrpxN
.Any feel for diff between ppc and cf for low level embedded stuff?

>  
> > -gene
> 
> -- 
> Joel Sherrill, Ph.D.             Director of Research & Development
> joel at OARcorp.com                 On-Line Applications Research
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