输出’ZUI DA ZHI SHI:’将平均值按位转换为ASCII码逐个输出输出’PING 输出第5个数即最大值输出’ZUI XIAO ZHI SHI:’输出第1个数即最小值输出’PING JUN ZHI SHI:’HE=0CX=3指针指向第二个数将其由ASCII码转换成2进制数指针指向下一个数HE=HE+该二进制数CX减1NCX=0?YHE除以3得到平均值JUN ZHI DE ER JIN ZHI CHUAN SHU CHU:’设置CX=16,SI=0,数据段设置变量STR1 DB 16 DUP(30H)将平均值(二进制)带进位左移一位CF=0?NY将[STR+SI]加1N将[STR+SI]对应的字符输出SI加1CX减1CX=0?Y结束 三.程序代码 练习一:
DATA SEGMENT A DB 90 B DB -70 C DB 5 Y DW ? DATA ENDS CODE SEGMENT
ASSUME CS:CODE,DS:DATA START: MOV AX,DATA MOV DS,AX MOV BL,A MOV CL,B
ADD BL,CL ;A+B MOV AL,02H
IMUL BL ;2*(A+B) MOV BX,AX MOV AL,A
MOV CL,C
IMUL CL ;A*C IDIV CL ;A*C/5 ADD AX,BX MOV Y,AX MOV AH,4CH INT 21H CODE ENDS
END START
练习二: DATA SEGMENT A DW 15786 DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA START: MOV AX,DATA MOV DS,AX MOV BX,A MOV CX,16 LEFT: TEST BX,8000H
JNZ L1 ;当首位为1,执行L1 MOV DL,'0' ;输出‘0’ MOV AH,02H INT 21H
SHL: SHL BX,1 LOOP LEFT
MOV AX,4CH INT 21H
L1: MOV DL,'1' ;输出‘1’ MOV AH,02H INT 21H JMP SHL CODE ENDS
END START 运行结果:
练习三:
DATA SEGMENT SUM DW ?
HEHE DB ?,?,?,?,? DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA START: MOV AX,DATA MOV DS,AX LEA SI,HEHE MOV BL,0 MOV CX,5 LOOP1: MOV AH,01H INT 21H SUB AL,30H MOV [SI],AL INC SI LOOP LOOP1
MOV CX,5 MOV AX,0 SUB SI,5
LOOP2: ADD AL,[SI] AAA INC SI LOOP LOOP2
MOV BX,AX MOV SUM,AX
MOV DL,BH ADD DL,30H MOV AH,2 INT 21H
MOV DL,BL ADD DL,30H MOV AH,2 INT 21H MOV AH,4CH
INT 21H CODE ENDS
END START 运行结果:
冒泡排序法程序: DATAS SEGMENT
SHURU DB 'QING SHU RU 5 GE SHU JU',13,10,'$' SHU1 DB 4,?,3 DUP(?) SHU2 DB 4,?,3 DUP(?) SHU3 DB 4,?,3 DUP(?) SHU4 DB 4,?,3 DUP(?) SHU5 DB 4,?,3 DUP(?) AVER DB 3 DUP(?)
SHUCHU DB 'PAI XU HOU DE SHU JU SHUN XU SHI',':','$' MAX DB 'ZUI DA ZHI SHI',':','$' MIN DB 'ZUI XIAO ZHI SHI',':','$' AVERAGE DB 'PING JUN ZHI SHI',':','$' CHUSHU DB 100,10 HE DW ?
STR1 DB 16 DUP(30H)
STR2 DB 'PING JUN ZHI DE ER JIN ZHI CHUAN SHU CHU',':','$' DATAS ENDS CODES SEGMENT
ASSUME CS:CODES,DS:DATAS START: MOV AX,DATAS MOV DS,AX MOV ES,AX
LEA DX,SHURU;显示QING SHU RU 5 GE SHU JU:
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