第1个回答 2012-10-31
1.
ORG 0000H
JMP MAIN
MAIN:
MOV 60H,50H;先将第一个数当成最大者,然后逐个比较
MOV R0,#51H
LOOP:
CLR C
MOV A,@R0
SUBB A,60H ;A-(60H),如果A大,则Cy=0 ,否则(60H)大
JC NEXT ;A和最大值(60H)比较,如果A大于(60H),那就把A赋值给60H
MOV A,@R0
MOV 60H,A
NEXT:
INC R0
MOV A,R0
CJNE A,#60H,LOOP
SJMP $
2.
DELAY: ;误差 0us
MOV R7,#07H
DL1:
MOV R6,#08H
DL0:
MOV R5,#22H
DJNZ R5,$
DJNZ R6,DL0
DJNZ R7,DL1
RET