private boolean isPairSet(Program prog, ProgramContext pc, Register pbr, long addrOff) {
		Address address = prog.getMinAddress().getNewAddress(addrOff);

		RegisterValue registerValue = pc.getRegisterValue(pbr, address);
		if (registerValue == null) {
			return false;
		}
		return registerValue.getUnsignedValue().intValue() == 1;
	}
This test analyzes the V850 languages, and then makes sure there are key
things marked up.
Ghidra/Processors/MIPS/src/test.slow/java/ghidra/app/plugin/core/analysis/MipsPreAnalyzerTest.java