CSDB Consumption of speculative data barrier This instruction is a memory barrier that controls speculative execution arising from data value prediction. For more information and details of the semantics, see Consumption of Speculative Data Barrier (CSDB). 1 1 0 1 0 1 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 0 1 0 1 0 0 1 1 1 1 1 CSDB // Empty. ConsumptionOfSpeculativeDataBarrier();