【正确答案】ORG 0000H
MOV R0,#20H
MOV R5,#30
MOV R1,#51H
MOV R2,#71H
MOV 50H,#0
MOV 70H,#0
LOOP:MOV A,@R0
JB ACC.7,F1
MOV @R1,A
INC 50H
INC R1
SJMP NEXT
F1: MOV B,R1
MOV R1,R2
MOV @R1,A
INC 70H
INC R1
MOV R2,R1
MOV R1,B
NEXT:INC R0
DJNZ R5,LOOP
SJMP $
END
【答案解析】