Re: SiByte 1480 & Branch Likely instructions?

["Maciej W. Rozycki" <macro@linux-mips.org>]

On Mon, 10 Dec 2007, Ralf Baechle wrote:

> It would devastate the performance of some binaries.

 I think this is what the deprecation is about. ;-)

> As an intellectual challenge, how far can you strip down a MIPS
> implementation and emulate removed instructions in the kernel ;-)

 Well, going back to MIPS I is certainly achievable (OK, we could keep 
ll/sc for the sake of sanity) and then perhaps a little bit further.  
After all, all of the ALU ops can be done with the NOR op only. ;-)

  Maciej