循环展开(4次): LOOP. LDF0,0(R1) 2) (空转) (3) ADDD F4 F0F2 (4) (空转) (5) (空转) (6) sD0(R1),F4 LDF0,-8(R1) (8) 空转 (9) ADDD F4,F0.F2 10) (空转) (11) (空转) (12) SD-8(R1),F4循环展开(4次)： (1) LOOP: LD F0,0(R1) (2) (空转) (3) ADDD F4,F0,F2 (4) (空转) (5) (空转) (6) SD 0(R1),F4 (7) LD F0,-8(R1) (8) (空转) (9) ADDD F4,F0,F2 (10) (空转) (11) (空转) (12) SD -8(R1),F4