default T getVar(Varnode var, Reason reason) {
		Address address = var.getAddress();
		return getVar(address.getAddressSpace(), address.getOffset(), var.getSize(), true, reason);
	}
Get the value of a variable

@param var the variable
@param reason the reason for reading the variable
@return the value
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/exec/PcodeExecutorStatePiece.java