The ARM processor (Thumb-2), part 6: The lie hiding inside the CMN instruction

Last time, we learned that the CMN instruction stands for compare negative, and it compares its first argument with the negative of the second argument: ; compare negative (compare Rn with -op2) cmn Rn, op2 ; Set flags for Rn + op2 We noted that the N in the name is misleading, The post The ARM processor (Thumb-2), part 6: The lie hiding inside the CMN instruction appeared first on The Old New Thing....

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