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What is CYG_MACRO_START & CYG_MACRO_END?


hi.
the example is below.


#define HAL_DCACHE_IS_ENABLED(_state_)          
    CYG_MACRO_START                             
    (_state_) = 0;                              
    CYG_MACRO_END

what does these macro do?

thanks in advance.

Tony




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