Poll: Just for fun

If you could assign function to the *reserved A5 instruction in the 8051, what would it be?

My vote:
Choice 1, movx dptr,@dptr+a
Choise 2, dec dptr


*From what I recall, this instruction is reserved for the interrupt mechanism, which (upon an interrupt) crams this instruction into the decoder as a special jump-to-vector command. Thus, its likely we'll never see any variant actually using the A5 instruction, but its fun to wish just the same.

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