Memory mapped registers in C/C++: Difference between revisions
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Explicit memory barrier directives to the compiler are compiler specific. Volatile may work as a memory barrier, but it in many cases is an overoptimization. Where possible, avoid the use of volatile as a memory barrier, and prefer to use an explicit memory barrier directive to the compiler.
<
// Explicit memory barrier for use with GCC.
asm volatile ("": : :"memory");</
===CPU memory barriers===
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==Useful References==
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