public int index() {
		return index;
	}
The index of the <em>next</em> p-code op to be executed

<p>
If the last p-code op resulted in a branch, this will instead return -1.

@see #isBranch()
@see #isFallThrough()
@see #isFinished()
@return the index, i.e, p-code "program counter."
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/exec/PcodeFrame.java