What does R(A) of JMP mean?

[Satoru Kawahara <s1311350@...>]

Hello,

At lua vm instruction, I sometimes find `R(A)` of `JMP` instruction is not zero.

I think `JMP A B` is jump from the address to the address + B, A is not used.

Does the vm use `A`?

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Kawahara Satoru

College of Information Science

University of Tsukuba