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SIMD effect latency behaviour

Question asked by ChristianH on Mar 19, 2013
Latest reply on Mar 22, 2013 by Mitesh

Hi,

 

the manual says that changing the PEYEN flag in the Mode1 register has a 1 cycle latency and programmers should add a "nop" after changing the flag.

What would happen to an instruction right after the Mode1 register change?

Is it undefined or is the old mode still active?

 

What instructions could I put into the instruction after changing the PEYEN flag change that do not care about the PEYEN flag?

 

Thanks!

Christian

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