汇编实验报告(河北工业大学)

实验一顺序与分支程序设计、实验目的1)掌握顺序程序设计方法。

掌握分支程序的结构及分支程序的设计，调试方法。

学习数据传送及算术和逻辑运算指令的用法。

熟悉在PC机上建立、汇编、连接、调试和运行汇编)))语言程序的过程。

二、实验内容1)有一字变量BUF1是以原码表示的有符号数，要求将其转换为反码和补码，分别存入BUF2和BUF3 单元，并在屏幕上显示出来。

源代码：DATA SEGMENTBUF1 DW 9348HBUF2 DW 4 DUP(0),0AH,0DH,'$'BUF3 DW 4 DUP(0),'$'DATA ENDSCODE SEGMENTASSUME CS:CODE,DS:DATA BEGIN:MOV AX,DATAMOV DS,AXMOV AX,BUF1ADD AX,0JS NEXTMOV BUF2,AXMOV BUF3,AXJMP EEENEXT:AND AX,7FFFHNOT AXMOV BUF2,AXINC AXMOV BUF3,AXEEE:MOV CX,0004HMOV DI,OFFSET BUF2MOV DX,[DI]ADD DI,03BBB:MOV A X,DXAND AX,000FHCMP AL,0AHJB QQQADD AL,07HQQQ:ADD AL,30HMOV [DI],ALDEC DIPUSH CXMOV CL,04HSHR DX,CLPOP CXLOOP BBBMOV CX,0004HMOV SI, OFFSET BUF3 MOV DX,[SI]ADD SI,03HCCC:MOV AX,DXAND AX,000FHCMP AL,0AHJB DDDADD AL,07HDDD:ADD AL,30HMOV [SI],ALDEC SIPUSH CXMOV CL,04HSHR DX,CLPOP CXLOOP CCCMOV DX,OFFSET BUF2 MOV AH,09HINT 21HMOV DX,OFFSET BUF3 MOV AH,09HINT 21HMOV AH,4CHINT 21HCODE ENDSEND BEGIN运行结2)有两个两字节无符号数分别放在存储单元A、B 起始的缓冲器中，求其和，结果放在A起始的缓冲区并在屏幕上显示。

相加若有进位不存入存储单元。

源代码：DATA SEGMENTA DB 34H,18H,2 DUP(0),'$'B DB 56H,83HDATA ENDSCODE SEGMENTASSUME CS:CODE,DS:DATASTART:MOV AX,DATAMOV DS,AXMOV AL,AMOV BL,BADD AL,BLMOV AH,A+1MOV BH,B+1ADC AH,BHMOV A,ALMOV A+1, AHMOV CX, 0004HMOV DI,OFFSET A MOV DX,[ DI] ADD DI,03 NEXT:MOV AX,DX AND AX,000FHCMP AL,0AHJB QQQADD AL,07H QQQ:ADD AL,30H MOV [DI],ALDEC DIPUSH CXMOV CL,04SHR DX,CLPOP CXLOOP NEXTMOV DX,OFFSET A MOV AH,09H INT 21HMOV AH,4CHINT 21HCODE ENDS END START 运行结果：3)在BUF和BUF+1、BUF+2单元分别放有一个无符号字节型数，编程序将其中最大数存入，并在屏幕上显示。

源代码：MAX单元STACK SEGMENT STACK DB 1024 DUP(0)STACK ENDSDATA SEGMENTBUF DB 70H,35H,1FHMAX DB 2 DUP(?),'$'DATA ENDSCODE SEGMENTASSUME CS:CODE,DS:DATA,SS:STACKBEGIN:MOV AX,DATAMOV DS,AXMOV AL,BUFCMP AL,BUF+1JNB LP1MOV AL,BUF+1 LP1:CMP AL,BUF+2 JAE LP2 MOV AL,BUF+2 LP2:MOV CX,02H MOV DI,OFFSETMAX MOV DL,AL INC DI LP3:AND AL,0FH CMP AL,0AH JB LP4 ADD AL,07H LP4:ADD AL,30H MOV[DI],AL DEC DI PUSH CX MOV CL,04 SHR DL,CL POP CX MOV AL,DL LOOP LP3 MOV DX,OFFSETMAX MOV AH,09H INT 21H MOV AH,4CH INT 21H CODE ENDS END BEGIN 运行结果：4)要求同上，只是比较的数为有符号数。

源代码：STACK SEGMENT STACKDB 1024 DUP(0)STACK ENDSDATA SEGMENTBUF DB 98H,75H,32HMAX DB 2 DUP(?),'$'DATA ENDSCODE SEGMENTASSUME CS:CODE,DS:DATA,SS:STACK BEGIN:MOV AX,DATAMOV DS,AXMOV AL,BUFCMP AL,BUF+1JG LP1XCHG AL,BUF+1LP1: CMP AL,BUF+2JG LP2XCHG AL,BUF+2LP2: MOV MAX,AL MOV CX,02HMOV DI,OFFSET MAX MOV DL,[DI]INC DILP3: MOV AL,DLAND AL,0FHCMP AL,0AHJB LP4ADD AL,07HLP4: ADD AL,30H MOV [DI],ALDEC DIPUSH CXMOV CL,04SHR DX,CLPOP CXLOOP LP3MOV DX,OFFSET MAX MOV AH,09HINT 21HMOV AH,4CHINT 21HCODE ENDSEND BEGIN运行结果：Y按下列公式计算6) 从键盘上接收一位十进制数X，计算Y 值，并以十六进制形式显示出来，2X 2 X ( X 3)2X 2 2 X ( X 4)2X 2 ( X 5 )2X 2 / 2 ( X 6 )源代码：DATA SEGMENTX DB ?Y DB ?DATA ENDSSTACK SEGMENT STACKDW 20H DUP(?)STACK ENDSCODE SEGMENTASSUME CS:CODE,DS:DATASTART:MOV AX,DATAMOV DS,AXl0:MOV DL,0AHMOV AH,2INT 21HMOV DL,0DHINT 21HMOV AH,1INT 21HSUB AL,30HMOV X,ALCMP X,3JZ l1CMP X,4JZ l2CMP X,5JZ l3CMP X,6JZ l4CMP X,0JZ l6JMP l0l1:MOV AL,XMUL XADD AL,XMOV Y,ALJMP l5l2:MOV AL,XMUL XSUB AL,XSUB AL,XMOV Y,ALJMP l5l3:MOV AL,XMUL XMOV Y,ALJMP l5l4:MOV AL,XMUL XMOV BL,2DIV BLMOV Y,AL l5:MOV DL,0AHMOV AH,2 INT 21H MOV DL,0DH INT 21H MOV DL,Y MOV CL,4 SHR DL,CL CMP DL,9 JLE l7 ADD DL,7l7:ADD DL,30H MOV AH,2 INT 21H MOV DL,Y AND DL,0FH CMP DL,9 JLE l8 ADD DL,7 l8:ADD DL,30HMOV AH,2 INT 21H JMP l0 l6:MOV AH,4CH INT 21H CODE ENDS END START运行结果：7) 从键盘上接收两个一位十六进制数X 和Y，然后再输入一个A-D 之间的一个字符，计算。

源代码：DATAS SEGMENTX DB ?Y DB ?Z DB ?S DB ?DATAS ENDSCODES SEGMENTASSUME CS:CODES,DS:DATASSTART:MOV AX,DATAS按下列要求MOV DS,AXL0:MOV AH,1INT 21HSUB AL,30HMOV X,ALMOV DL,0AHMOV AH,2INT 21HMOV DL,0DHINT 21HMOV AH,1INT 21HSUB AL,30HMOV Y,ALMOV DL,0AHMOV AH,2INT 21HMOV DL,0DHINT 21HMOV AH,1INT 21HMOV Z,ALCMP Z,'A'JZ L1CMP Z,'B'JZ L2CMP Z,'C'JZ L3CMP Z,'D'JZ L4CMP Z,'Q'JZ L7L1:MOV AL,XADD AL,Y MOVS,ALJMP L6 L2:MOV AL,X SUB AL,Y MOV S,AL CMP S,0 JS L5 JNS L6 L3:MOV AL,X MUL Y MOV S,AL JMP L6 L4:MOV AL,X MOV BL,Y MOV AH,0 DIV BL MOV S,AL JMP L6 L5:NEG S JMP L6 L6:MOV DL,0AH MOV AH,2 INT 21H MOV DL,0DH INT 21HMOV DL,SL9:ADD DL,30H MOV AH,2 INT 21HMOV DL,0AH MOV AH,2 INT 21HMOV DL,0DH INT 21HJMP L0L7:MOV AH,4CHINT 21H CODES ENDSEND START 运行结果：实验二循环与子程序程序设计、实验目的1）加深对循环结构的理解。

2）掌握循环程序的设计方法。

3）学习子程序的定义和调用方法。

4）掌握子程序、子程序的嵌套、递归子程序的结构。

5）掌握子程序设计、编制及调试。

6）熟练掌握DEBUG的常用命令，学会用DEBUG调试程序、实验内容1）编制程序计算S=1+2·3+3·4+4·5+⋯⋯+N（N+1）+⋯⋯直到N（N+1）大于200 为止，并将结果由屏幕上显示出来。

源代码：DATA SEGMENTBUF DB'S=1+2*3+3*4+4*5+ ⋯+N(N+1)+⋯=','$'RES DW 4 DUP(0),'$'DATA ENDSCODE SEGMENTASSUME CS:CODE,DS:DATASTART: MOV AX,DATAMOV DS, AXMOV DX, OFFSET BUFMOV AH, 09HINT 21HMOV DX, 1MOV BL, 2NEXT: MOV AL, BLINC BLMUL BLADD DX, AXCMP AX, 200JNA NEXTMOV CX, 0004HMOV DI, OFFSET RESADD DI, 03HNEXT1:MOV AX, DXAND AX, 000FHCMP AL, 0AHJB NEXT2ADD AL, 07NEXT2:ADD AL, 30HMOV [DI],ALDEC DIPUSH CXMOV CL,04SHR DX,CLPOP CXLOOP NEXT1MOV DX, OFFSET RESMOV AH, 09HINT 21HMOV AH, 4CHINT 21HCODE ENDS END START 运行结果：2)将从3000H内存单元开始的100 个字节存储单元全部清0 源代码：DATA SEGMENTORG 3000HX DB 100 DUP(?)DATA ENDSSTACK SEGMENT STACKDB 10 DUP(?)STACK ENDSCODE SEGMENTASSUME CS:CODE,DS:DATA,SS:STACKSTART:MOV AX,DATAMOV DS,AXLEA SI,XMOV CX,100LP:AND BYTE PTR[SI],00HINC SILOOP LPMOV AH,4CHINT 21HCODE ENDSEND START运行结果：3）编制在屏幕上显示九九乘法表的程序源代码：DATA SEGMENTX DB 1Y DB 1Z DB 1S DB ?YS DB ?TEN DB 10DATA ENDSCODE SEGMENTASSUME CS:CODE,DS:DATASTART:MOV AX,DATAMOV DS,AX ; 装入段寄存器L1:MOV AL,XMUL YMOV Z,ALCALL SCINC YMOV BL,XCMP Y,BLJA L2JMP L1 ; 内循环L2:INC XJA L3MOV Y,1MOV DL,0AHMOV AH,02HINT 21HMOV DL,0DHMOV AH,02HINT 21H ; 输出回车换行JMP L1 ; 外循环L3:MOV AH,4CHINT 21HSC PROC ; 输出子程序ADD Y,30HMOV DL,YMOV AH,02HINT 21H ; 输出YMOV DL,'X'MOV AH,02HINT 21H ; 输出XADD X,30HMOV DL,XMOV AH,02HINT 21H ; 输出XMOV DL,'='MOV AH,02HINT 21H ; 输出=MOV AX,0MOV AL,ZDIV TENMOV S,ALMOV YS,AH cmp s,1 jb l10ADD S,30HMOV DL,SMOV AH,2INT 21H; 输出高位结果ADD YS,30HMOV DL,YSMOV AH,2INT 21H; 输出低位结果; 输出ZMOV DL,' 'MOV AH,02HINT 21H ; 输出一个空格jmp l11 l10:ADD YS,30H MOV DL,YS MOV AH,2 INT 21H; 输出低位结果MOV AH,02HINT 21H ; 输出一个空格MOV DL,' 'MOV AH,02HINT 21H l11:MOV AX,0 MOV AL,X-30H SUB X,30H SUB Y,30HRETSC ENDPCODE ENDSEND START 运行结果：4)编制在屏幕上显示用* 组成的三角形的程序源代码：DATA SEGMENTN DB ?NN DB ?I DB 1 DATA ENDS STACK SEGMENTDW 20 DUP(?)STACK ENDS CODE SEGMENTASSUME CS:CODE,DS:DATA,SS:STACKSTART: MOV AX,DATAMOV DS,AXMOV AH,1INT 21H ; 输入一个数存入ALMOV N,AL ; 输入的数存入NSUB N,30HMOV DL,0AHMOV AH,2INT 21HMOV DL,0DHMOV AH,2INT 21HL10: MOV AL,NSUB AL,IMOV NN,ALL2: CMP NN,1JB L1MOV DL,' 'MOV AH,02HINT 21HDEC NNJMP L2 ; 循环输出N-I 个空格L1: MOV BL,ISHL BL,1SUB BL,1 ;(IX2)-1L14: MOV DL,'*'MOV AH,02HINT 21HDEC BLCMP BL,1JB L3JMP L14L3: MOV AL,NSUB AL,IMOV NN,ALL4: CMP NN,1JB L5MOV DL,' 'MOV AH,02HINT 21HDEC NNJMP L4 ; 循环输出N-I 个空格L5:MOV DL,0AHMOV AH,2INT 21HMOV DL,0DHMOV AH,2INT 21H ; 输出回车换行INC IMOV BL,ICMP BL,NJA L6MOV BL,0JMP L10L6:MOV AH,4CHINT 21HCODE ENDSEND START 运行结果：5）设有五个字数据存放在以BUF为首地址的内存单元中，要求采用调用多个字数据相加的子程序方法编程，和的低位字放在RESULT单元，和的高位字放在RESULT+2单元，并将结果显示在屏幕上源代码：STACK SEGMENT STACK DB 1024 DUP(0)STACK ENDSDATA SEGMENTBUF DW 0F101H,110DH,52H,100H,456H COUNT =($-BUF)/2RESULT DW 4 DUP(?),'$'DATA ENDSCODE SEGMENTASSUME CS:CODE,DS:DATA,SS:STACKWDADD PROCPUSH DIMOV AX, 0MOV DX, 0MOV DI, OFFSET BUFNEXT2: ADD AX, [DI]JNC NEXT1INC DXNEXT1: ADD DI, 2LOOP NEXT2POP DIRETWDADD ENDPSHOW PROCPUSH CXPUSH DIMOV CX, 04HMOV DI, OFFSET RESULTMOV BX, AXADD DI, 07HBBB: MOV AX, BXAND AX, 000FHCMP AL, 0AHJB QQQADD AL, 07HQQQ: ADD AL, 30HMOV [DI], ALDEC DIPUSH CXMOV CL, 04SHR BX, CLPOP CXLOOP BBBMOV CX, 0004H CCC: MOV AX, DX AND AX, 000FH CMP AL, 0AHJB DDDADD AL, 07HDDD: ADD AL, 30HMOV [DI], ALDEC DIPUSH CXMOV CL, 04HSHR DX, CLPOP CXLOOP CCCPOP DIPOPCXRETSHOW ENDPBEGIN: MOV AX, DATA MOV DS, AXMOV CX, COUNTCALL WDADDCALL SHOWMOV DX, OFFSET RESULTMOV AH, 09HINT 21HMOV AH, 4CHINT 21HCODE ENDSEND BEGIN运行结果：实验三算术运算与代码转换程序设计、实验目的1）掌握算术运算程序的设计方法。