Reservation_station
1	16	*2	# size_queue    
1	1	*4	# nb_inst_retire
1	1	*4	# nb_context         
1	1	*4	# nb_front_end       
1	1	*4	# nb_ooo_engine
256	256	*2	# nb_packet          
16	16	+1	# size_general_data  
16	16	+1	# size_special_data  
8	8	*2	# nb_general_register
8	8	+1	# nb_special_register
4	4	+1	# nb_operation       
4	4	+1	# nb_type            
1	1	*2	# nb_gpr_write
1	1	*2	# nb_spr_write
0	0	*2	# nb_bypass_write 
0	0	*2	# nb_bypass_memory