private long PG(long addr) {
		return addr & (~0xfff);
	}
Returns the page address of the given address (assumes 4KB page)

@param addr The address to get the page of
@return The page address of the given address
Ghidra/Processors/AARCH64/src/main/java/ghidra/app/util/bin/format/macho/relocation/AARCH64_MachoRelocationHandler.java