2010~2011学年第一学期汇编语言期末试卷b

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1、„„„„„„„„„„„„装„„„„„„„„„„„„订„„„„„„„„„„„„„线„„„„„„„„„„„„课程________________________班级________________________姓名__________________________学号________________________„„„„„„„„„„„„密„„„„„„„„„„„„封„„„„„„„„„„„„„线„„„„„„„„„„„„4/4安徽工业大学试题纸(一)4/4题号得分一二三四五六七八九十十一十二十三十四十五十六十七十

2、八十九二十总分4/42010~2011学年第一学期期末考试《汇编语言》试卷�B�一、单选题�2×10=20分�4/4��1、在进行DOS系统功能调用时�功能号应送往哪一个寄存器中�4/4A、DLB、DHC、ALD、AH4/4��2、ASCII码中61H表示的字符是�4/4��3、8086CPU在执行8位有符号数运算后�产生溢出是结果超出了:4/4A、0�255B、+128�-128C、+255�-256D、+127�-1284/4����4�假设V1和V2是用DB定义的变量�下列指令中正确的是:A、MOVV1�2000

3、HB、MOVV1�V2C、MOVDL�V1D、MOV2000H�V2�5�下列4条指令中�错误的是:A、MOVES�3000HB、MOVDX�[BP]C、ADDAX�300D、ADDAX�ARRAY[SI+2]�6、在下列指令中�那一条指令的执行会影响条件码的CF位:4/4A、JMPNEXTB、JCNEXTC、INCBXD、SHLAX,14/4��7、若定义DATDW‘ab’�则DAT和DAT+1两个相邻的内存单元中存放的数据是�4/4A、42H41HB、41H42HC、62H61HD、61H62H4/4��8、若从端口2F8H

4、输出一个字节数据时�下列哪种写法是正确的�A、INAL,2F8HB、OUT2F8H,ALC、MOVAL,2F8HD、MOVDX,2F8HOUTDX,AL4/4��A、占用内存空间小�但速度慢B、占用内存空间大�但速度快C、占用内存空间相同�但速度快D、占用内存空间相同�但速度慢�10、若�AL�=01010101B�为了使其内容变为10101010B,下列哪条指令可完成此操作�4/4A、NOTALB、ORAL,ALC、ANDAL,ALB-1D、XORAL,AL4/4„„„„„„„„„„„„装„„„„„„„„„„„„订„„„„„„„„„„

5、„„„线„„„„„„„„„„„„课程________________________班级________________________姓名__________________________学号________________________„„„„„„„„„„„„密„„„„„„„„„„„„封„„„„„„„„„„„„„线„„„„„„„„„„„„4/4安二、填空题�1x30=30分�徽工业大学试题纸(二)4/41、假设(SP)=200H�(SS)=2000H�执行POPBP指令后�栈顶的物理地址是2、段地址和偏移地址为1000H

6、�000FH�它的物理地址是。。4/43、汇编语言源程序的扩展名是�目标程序的扩展名是�可执行程序的扩展名是。4/44、是过程定义结束伪指令�与配套使用。是段定义结束伪指令�4/4与配套使用�是一个源模块汇编结束伪指令。4/45、在计算机中�系统总线将CPU、存储器和I/O设备连接起来�传送各部分之间的信息。4/4系统总线包括、和。4/46、8086/8088有四个位段寄存器�分别表示为、、、。4/47、汇编语言源程序中的语句有三种类型�它们是8、主程序和子程序的参数传递方法有、、和及三种。语句。4/

7、49、I/O端口的编址方式有和两种�8086采用方式。4/410、数据串传送指令执行前应做三、程序分析题�共15分�1、SQTABDB0�1�4�9�16�25�36�49„MOVAL�3、、、置方向标志四项准备工作。4/4LEABX�SQTAB4/4XLAT问程序段执行后��AL�=�3分�4/42、下面程序的功能是将键盘输入的小写字母用大写字母显示出来。请将程序补充完整。�每空2分�共8分�CODESEGMENT4/4ASSUMECS:CODESTART:MOVAH,14/4�1�CMPAL�‘a’4/4JLEXITCMPAL,

8、‘z’4/4JGEXITSUB�2�MOVDL,ALMOVAH,2HB-24/4„„„„„„„„„„„„装„„„„„„„„„„„„订„„„„„„„„