protected Disassembler getDisassembler() {
		if (disassembler == null) {
			disassembler = Disassembler.getDisassembler(program, TaskMonitor.DUMMY, null);
		}
		return disassembler;
	}
Get disassembler for the current program
@return disassembler instance
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/util/LanguagePostUpgradeInstructionHandler.java