@Override
	default TraceMemoryState getState(TracePlatform platform, long snap, Register register) {
		AddressRange range = platform.getConventionalRegisterRange(getSpace(), register);
		return requireOne(getStates(snap, range), register);
	}
For register mapping conventions

@return the address space
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/database/memory/InternalTraceMemoryOperations.java