;
CLR A
MOV R1, A
MOV 30H, A
MOV R0, #30H
MOV R2, #64
LOOP:
MOVX A, @R0
ADD A, R1
MOV R1, A
JNC NEXT
INC 30H
NEXTl
INC R0
DJNZ R2, LOOP
MOV A, R1
ANL A, #0C0H
ADD A, 30H
RL A
RL A
MOV 30H, A
SJMP $
END
是用汇编吗