STL Explanation
L L#1 Load the integer constant (32 bit) into ACCU?.
T MD20 Transfer the contents from ACCU? into MD20 (initialization).
L 5 Load number of loop cycles into ACCU?-L.
NEXT: T MW10 Jump label = loop start / transfer ACCU?-L to loop counter.
L MD20
* D Multiply current contents of MD20 by the current contents of MB10.
T MD20 Transfer the multiplication result to MD20.
L MW10 Load contents of loop counter into ACCU?.
LOOP NEXT Decrement the contents of ACCU? and jump to the NEXT jump label if ACCU?-L > 0.
L MW24 Program scan resumes here after loop is finished.
L 200
>I

以上是关于LOOP的HELP