微机原理答:第二个:DATE SEGMENT X DB ?Y DB ?DATE ENDS CODE SEGMENT ASSUME CS:CODE,DS:DATA START:MOV AX,DATA MOV DS,AX MOV SI,OFFSET X MOV DI,OFFSET Y MOV AL,[SI]CMP AL,0 JA POS JZ ZERO MOV [DI],0FFH JMP EXIT POS: MOV [DI],1 JMP EXIT ZERO: MOV [DI],0 EXIT: NOP ...