LEA DI,DIMEN MOV AL,[DI] MOV BL,[DI+1] CBW IDIV BL MOV [DI],AL MOV [DI+1],AH 请帮我指出错误原题:在偏移地址为DIMEM的两个连续内存中放有带符号的被除数和除数,试求其结果,商放在DIMEM中,余数放在下个内存
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 13:00:00
![LEA DI,DIMEN MOV AL,[DI] MOV BL,[DI+1] CBW IDIV BL MOV [DI],AL MOV [DI+1],AH 请帮我指出错误原题:在偏移地址为DIMEM的两个连续内存中放有带符号的被除数和除数,试求其结果,商放在DIMEM中,余数放在下个内存](/uploads/image/z/3940150-22-0.jpg?t=LEA+DI%2CDIMEN+MOV+AL%2C%5BDI%5D+MOV+BL%2C%5BDI%2B1%5D+CBW+IDIV+BL+MOV+%5BDI%5D%2CAL+MOV+%5BDI%2B1%5D%2CAH+%E8%AF%B7%E5%B8%AE%E6%88%91%E6%8C%87%E5%87%BA%E9%94%99%E8%AF%AF%E5%8E%9F%E9%A2%98%EF%BC%9A%E5%9C%A8%E5%81%8F%E7%A7%BB%E5%9C%B0%E5%9D%80%E4%B8%BADIMEM%E7%9A%84%E4%B8%A4%E4%B8%AA%E8%BF%9E%E7%BB%AD%E5%86%85%E5%AD%98%E4%B8%AD%E6%94%BE%E6%9C%89%E5%B8%A6%E7%AC%A6%E5%8F%B7%E7%9A%84%E8%A2%AB%E9%99%A4%E6%95%B0%E5%92%8C%E9%99%A4%E6%95%B0%2C%E8%AF%95%E6%B1%82%E5%85%B6%E7%BB%93%E6%9E%9C%2C%E5%95%86%E6%94%BE%E5%9C%A8DIMEM%E4%B8%AD%2C%E4%BD%99%E6%95%B0%E6%94%BE%E5%9C%A8%E4%B8%8B%E4%B8%AA%E5%86%85%E5%AD%98)
LEA DI,DIMEN MOV AL,[DI] MOV BL,[DI+1] CBW IDIV BL MOV [DI],AL MOV [DI+1],AH 请帮我指出错误原题:在偏移地址为DIMEM的两个连续内存中放有带符号的被除数和除数,试求其结果,商放在DIMEM中,余数放在下个内存
LEA DI,DIMEN MOV AL,[DI] MOV BL,[DI+1] CBW IDIV BL MOV [DI],AL MOV [DI+1],AH 请帮我指出错误
原题:在偏移地址为DIMEM的两个连续内存中放有带符号的被除数和除数,试求其结果,商放在DIMEM中,余数放在下个内存中.
最好能说说CBW是怎么用的!
LEA DI,DIMEN MOV AL,[DI] MOV BL,[DI+1] CBW IDIV BL MOV [DI],AL MOV [DI+1],AH 请帮我指出错误原题:在偏移地址为DIMEM的两个连续内存中放有带符号的被除数和除数,试求其结果,商放在DIMEM中,余数放在下个内存
LEA DI,DIMEN
MOV AL,[DI]
MOV BL,[DI+1]
CBW
IDIV BL
MOV [DI],AL
MOV [DI+1],AH
楼主的这段程序没有错误.
字节转换为字指令CBW(Convent Byte to Word)
指令格式:CBW
该指令的隐含操作数为AH和AL.其功能是用AL的符号位去填充AH,即:当AL为正数,则AH=0,否则,AH=0FFH.
指令的执行不影响任何标志位.