汇编语言-实验一 顺序与分支程序设计(2)

顺序与分支程序设计

INT 21H MOV X,AL MOV AH,01H INT 21H MOV Y,AL CMP X,3AH JB DEX SUB X,07H CMP Y,3AH JB DEY DEX:SUB X,30H SUB Y,07H DEY:SUB Y,30H MOV AL,01H INT 21H CMP AL,41H JZ JIA CMP AL,42H JZ FJIAN CMP AL,43H JZ CHENG CMP AL,44H JZ CHU JMP JIESHU JIA:MOV AL,X ADD AL,Y JMP PUT FJIAN: MOV AL,X CMP AL,Y JAE A1 MOV AL,Y SUB AL,X JMP PUT A1: SUB AL,Y JMP PUT CHENG: MOV AL,X MUL Y JMP PUT CHU:XOR AH,AH MOV AL,X DIV Y

顺序与分支程序设计

PUT:MOV CU,AL

AND CU,0FH

CMP CU,09H

JLE AB1

ADD CU,07H

AB1:ADD CU,30H

MOV BL,CU

MOV BUF,BL

AND AL,0F0H

MOV CL,4

ROR AL,CL

CMP AL,09H

JLE AB2

ADD AL,07H

AB2:ADD AL,30H

MOV BUF+1,AL

MOV AH,2

MOV DL,BUF+1

INT 21H

MOV DL,BUF

INT 21H

JIESHU:MOV AH,4CH

INT 21H

CODE ENDS

END START

执行程序EXAM1－7·EXE，若输入8 AC

B4

C16

D2 4屏幕上显示结果：