有一段STL程序，其中的装载指针如何理解
L #ADDR //load #addr to accu1
L 8 //load #addr to accu2, load 8 to accu1
*I /accu1 * accu2= t, load t to accu1
T #BUFF1 //copy contents of accu1 to #buff1
L #BADDR
L 8
*I
T #BUFF2
L #BUFF1
L #BUFF2
+D
LAR1
L MB [AR1,P#0.0]
T #DBNUM
请赐教。谢谢！