Tree based 64 bit binary comparator

My tree based 64bit binary comparator will compare two binary numbers and gives us the answere which one is "bigger or equal or less" .i had drawn schematic of 8 bit comparator in tanner eda tool .by using instance of 8 bit comparator i had drawn 64 bit binary comparator.....but "my doubt is how to give inputs to 64 bit comparator" .:|

sir,i am doing project on low power higfh performance single cycle tree based 64 bit binary comparator.please anyn one help me to write the code for 64 bit binary comparator in veriolg