ARM’s literature often describes its assembly language instruction syntax in BNF notation. Suppose an instruction is described in BNF as having the syntax:
This|That{B}{S}{,P|Q}
Give examples of possible legal instructions using this format.
The notation | indicates an alternative (choose one of several) and {} indicates an option that may or may not be used. In this case we can have:
This
That
ThisB
ThatBS
This,P
This,Q
ThatBS,Q
And so on
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