Use LL/SC instructions to construct an atomic compare and swap instruction “CAS R1, R2, L”
Use LL/SC instructions to construct an atomic compare and swap instruction “CAS R1, R2, L” which tests whether data in memory location L is equal to that in R1. If they are equal, write the value in R2 to L, and copy R1 to R2. Otherwise, nothing is done and CAS returns. For example, if […]