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