80c51单片机内部RAM中从30h单元开始连续存放了20h个单字节正数.编程找出其中最大数,并存到70h

Question

如题所述

Answer 1

MOV R0，#30H

MOV B，#20H
MOV 70H，#0
QQQQ：

MOV A，70H
CLR C
SUBB A，@R0
JNC ZZZZ
MOV 70H，@R0
ZZZZ：
INC R0
DJNZ B，QQQQ本回答被网友采纳