@Override
		protected Entry<TraceAddressSnapRange, T> doFloorEntry(long snap, Address max) {
			Address spaceMin = space.space.getMinAddress();
			return mapSpace
					.reduce(TraceAddressSnapRangeQuery.intersecting(spaceMin, max, snap, snap)
							.starting(Rectangle2DDirection.RIGHTMOST))
					.firstEntry();
		}
Cache for optimizing {@link AbstractBaseDBTraceDefinedUnitsView#getFloor(long, Address)} and
similar.
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/database/listing/AbstractBaseDBTraceDefinedUnitsView.java