1lbl1:       ADD TXL1START, CPC0, #(loop_start-lbl1)
2lbl2:       MOV A0.0, CPC0
3            ADD A0.0, A0.0, #(loop_end-lbl2)
4            MOV TXL1END, A0.0
5
6loop_start: MOV D0Ar2, D0Ar4
7            NOP
8loop_end:   MOV D1Ar1, D1Ar5
9