Some Techical Questions About The Wiz Cpu

[sbock]

I've some questions about the ARM926EJ CPU from the Wiz:

What are the main advantages of the ARMv5 over the ARMv4 architecture from the GP2X F-100/200?

Orkie mentioned DSP Enhancement Instructions which are useful for multimedia apps I think?

What's with the Tight Coupled Memory feature? Will there be any benefit?

Will Jazelle DBX be usable under Linux?

Thanks a bunch in advance.

Regards,
Stephan

 

[Orkie]

To be honest, I don't know a huge amount about it but I think the YUV hardware is going to be much more useful than the DSP opcodes for media stuff (though clearly it is nice to have both). Jazelle has to be licensed to be used. It costs a fortune and is actually slower than modern software-only JREs anyway, so a waste of money .

 

[Squidge]

If you visit arm.com, you can look at the enhanced instruction set of the ARMv5.

 

[sbock]

To be honest, I don't know a huge amount about it but I think the YUV hardware is going to be much more useful than the DSP opcodes for media stuff (though clearly it is nice to have both). Jazelle has to be licensed to be used. It costs a fortune and is actually slower than modern software-only JREs anyway, so a waste of money .

Thanks for your assessment, Orkie.

Regards,
Stephan