实验三-数据串传送与查表程序

《实验三-数据串传送与查表程序》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、实验三数据串传送和查表程序实验目的通过实验掌握下列知识：1、堆栈。堆栈指示器SP和堆栈操作指令PUSH和POP。2、段寄存器和物理地址计算。3、查表法和查表指令XLATo4、数据串传送程序和数据串传送指令MOVS、ST0S及重复前辍REP。5、循环指令R0L、逻辑与指令AD和清方向位指令CLD。6、伪操作指令DB。实验内容及步骤一、利用查表方法把DX的内容（十六进制数）转换成ASCII码1、用A命令键入下列程序：MOVBX,1000MOVDI,2000MOVCX,4LOP:PUSHexMOVCL,4ROLDX,CLP

2、OPexMOVAL,DLANDAL,OFXLATCLDST0SBLOOPLOPINT20DOSBox0.74,Cpuspeed:3000cycles,Frameskip0,Program:DEBUGC：>debug-a0100073F:010Gmovbx.1000073F:0103movdi,ZO0O073F:0166movex,40?3F：0109pushex073F:010AmovcL4073F:010Croldxjd073F:010EPOPex073F:010FmovaLdl073F：0111andaljof人

3、Error073F：0111andal,of八Error073F：0111andal,0f073F：O113xlat073F：0114cld073F：0115stosb073F：0116loop01090?3F：O118intZ0073F：O11AE:>c：2、用A命令在100011处键入下列ASCII码并用D命令检查之:DB'0123456789ABCDEF'用D命令检查时注意左边的ASCH码值和右边的字符。DOSBox0.74,Cpuspeed:3000cycles,Frameskip0,Program:DEB

4、UG073F:0103movdi.2000movex>4pushexmovrolPOPmovand073F:O106073F:0109073F：O10A073F:01OC073F:010E073F:O10F073F：0111073F：0111andcE4dx,clexal,dlaljof人Erroraljof八Erroral,Of073F：O111073F：O113073F：0114073F：O115073F：O116073F：0118073F：O11A-a10O0073F:100O073F:1010-dlOGG101

5、0073F:10003031323334353637-383961626364656601Z3456789abcdef073F:1010GOandxlatcldstosbloop0109int20db,01Z3456789abcdef,3、用R命令给DX送一个四位的十六进制数（例7F8E）。3000cycles,Frameskip0fProgram:DEBUG073F:O10Amovcl,4G73F:O10Croldxjd073F:O10EPOPex073F:01OFmovaEdl073F：O111andaljof八E

6、rror073F：0111andal,of八Error0?3F：0111andal,Of073F：O113073F：0114cldG73F：0115stosb073F：0116loop0109073F：0118irrtZOG73F：O11ADOSDOSBox0.74,Cpuspeed:-a1000073F:1OO0dbJ0123456789abcdef'073F:1010-dlOOO1010073F:100O3031323334353637-38396162636465660123456?89abcdef0?3F:10

7、10GO-rdxDX0000：7f8e4.用T命令逐条运行这程序到LOOP指令处，观察并记录每次运行结果，特别是SP和堆栈内容（用I）命令检查）。073F:01F00000000000000000-0000000000000000-dlOO073F:0100BB0010BF0020B904-GO51Bl04D3C25988Q.••・Y.073F：0110DOZ4OFD7FCAAEZFl-CDZ0000034GOZE07•$4...073F:01Z00000000000000000-0000000000GO0000073

8、F：01300000000000000000-0000000000GO0000073F:01400000000000000000-0000000000000000073F:01500000000000000000-0000000000000000073F：O1600000000000000000-0000000000000000(