实验三算术运算与代码转换程序设计一、实验目的1）掌握算术运算程序的设计方法。

2）掌握代码转换程序的设计方法。

3）进一步掌握各种程序结构。

4）熟练掌握和使用用DEBUG调试程序。

二、实验内容1）编制两个多字节整数加法和减法程序，并将结果按十六进制形式显示在屏幕上。

2）编制程序实现二进制定点数与十进制数的ASCII码串之间转换，并将结果显示在屏幕上。

3）编写程序计算从键盘输入两个不超过四位的十进制数的和、差、积、商，并以十进制形式输出。

4）写程序把从键盘输入的四位十六进制数转换为压缩的BCD码，并显示输出。

5）编写一通用过程用来将十进制数(从键盘输入)转换为P(从键盘输入)进制数。

三、实验设备PC机一台四、实验步骤1) 按程序流程图编制实验程序。

2) 输入源程序。

3) 汇编、连接程序，执行程序，检查结果。

4) 程序的执行可用DEBUG的G命令,也可用T命令单步跟踪执行。

5) 用D命令检查执行结果。

六、源程序实验一DA TA SEGMENTNUM1 DB 22H,33H,44H,55H,66H,77HNUM1L DB 6HNUM2 DB 22H,22H,22H,22HNUM2L DB 4HOUTCOME1 DB 10H DUP(0)OUTCOME2 DB 10H DUP(0)N DB 0HDA TA ENDSSTACK1 SEGMENT PARA STACKDW 20H DUP(0)STACK1 ENDSCODE SEGMENTASSUME CS:CODE,DS:DA TA,SS:STACK1START:MOV AX,DATAMOV DS,AXMOV CH,0MOV SI,OFFSET NUM1MOV DI,OFFSET NUM2MOV AH,NUM1LMOV AL,NUM2LCMP AH,ALJAE CHAXCHG SI,DIXCHG AH,ALCHA:SUB AH,ALMOV CL,ALCLCMOV BX,OFFSET OUTCOME1LOP1:MOV AL,[DI]PUSH CXMOV CL,[SI]ADC CL,ALMOV [BX],CLINC BXINC SIINC DIPOP CXLOOP LOP1MOV CL,AHJCXZ LOP3LOP2:PUSH CXMOV CL, BYTE PTR [SI]ADC CL,0MOV [BX],CLPOP CXINC BXINC SILOOP LOP2LOP3:MOV CH,0MOV SI,OFFSET NUM1MOV DI,OFFSET NUM2MOV AH,NUM1LMOV AL,NUM2LCMP AH,ALJAE CHA1XCHG SI,DIXCHG AH,ALCHA1:SUB AH,ALMOV CL,ALCLCMOV BX,OFFSET OUTCOME2 LOP11:MOV AL,[DI]PUSH CXMOV CL,[SI]SBB CL,ALMOV [BX],CLINC BXINC SIINC DIPOP CXLOOP LOP11MOV CL,AHJCXZ LOP7LOP21:PUSH CXMOV CL, BYTE PTR [SI]SBB CL,0MOV [BX],CLPOP CXINC BXINC SILOOP LOP21LOP7:MOV DI,OFFSET OUTCOME1 ADD DI,10HMOV CX,11HLOP4: MOV DL,[DI]DEC DICMP N,0HJNE LOP5CMP DL,0HJE LOP9LOP5:PUSH DXPUSH CXMOV CL,4HSHR DL,CLPOP CXCMP DL,9HJBE LOP6ADD DL,7HLOP6:ADD DL,30HMOV AH,2INT 21HMOV N,1HPOP DXAND DX,0FHCMP DL,9HJBE LOP8ADD DL,7HLOP8:ADD DL,30HMOV AH,2INT 21HMOV DL,'H'MOV AH,2INT 21HLOP9:LOOP LOP4MOV N,0MOV DI,OFFSET OUTCOME2ADD DI,10HMOV CX,11HLOP14: MOV DL,[DI]DEC DICMP N,0HJNE LOP15CMP DL,0HJE LOP19LOP15:PUSH DXPUSH CXMOV CL,4HSHR DL,CLPOP CXCMP DL,9HJBE LOP16ADD DL,7HLOP16:ADD DL,30HMOV AH,2INT 21HMOV N,1HPOP DXAND DX,0FHCMP DL,9HJBE LOP18ADD DL,7HLOP18:ADD DL,30HMOV AH,2INT 21HMOV DL,'H'MOV AH,2INT 21HLOP19:LOOP LOP14MOV AH,4CHINT 21HCODE ENDSEND START实验2DA TA SEGMENTTISHI1 DB 'Please enter the first number:','$' TISHI2 DB 'Please enter the second number:','$' JIA DB '+','$'JIAN DB '-','$'CHENG DB '*','$'CHU DB '/','$'DENG DB '=','$'YU DB '......','$'A DB 10B DW 10C DW 10000F DW 0HNUM1 DW 0HNUM2 DW 0HN DB 0HN1 DB 4HDA TA ENDSSTACK1 SEGMENT STACKDW 30H DUP(0)STACK1 ENDSCODES SEGMENTASSUME CS:CODES,DS:DATASTART:MOV AX,DATAMOV DS,AXMOV DX,OFFSET TISHI1MOV AH,09HINT 21HLOOP2:MOV AX,NUM1MUL BMOV BX,AXMOV AH,1INT 21HCMP AL,0DHJE LOP1MOV NUM1,BXMOV AH,0SUB AL,30HADD NUM1,AXJMP LOOP2LOP1:MOV DL,0AH 输出换行和回车MOV AH,2INT 21HMOV DL,0DHMOV AH,2INT 21HMOV DX,OFFSET TISHI2MOV AH,09HINT 21HLOOP1:MOV AX,NUM2MUL BMOV BX,AXMOV AH,1INT 21HCMP AL,0DHJE LOP3MOV NUM2,BXMOV AH,0SUB AL,30HADD NUM2,AXJMP LOOP1LOP3:MOV DL,0AH 输出换行和回车MOV AH,2INT 21HMOV DL,0DHMOV AH,2INT 21HMOV N,0MOV DX,NUM1MOV F,DXLOP6:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOP7MOV F,AXJMP LOP6LOP7:MOV CL,NMOV CH,0LOP16:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOP16MOV DX,NUM2MOV F,DXMOV N,0MOV DX,OFFSET JIAMOV AH,09H INT 21HLOOOP6:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOOOP7MOV F,AXJMP LOOOP6LOOOP7:MOV CL,NMOV CH,0LOOOP16:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOOP16MOV DX,OFFSET DENGMOV AH,09HINT 21HMOV N,0LOOP3:MOV AX,NUM1ADD AX,NUM2MOV F,AXLOOP4:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOOP5MOV F,AXJMP LOOP4LOOP5:MOV CL,NMOV CH,0LOOP0:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOP0MOV DL,0AH 输出换行和回车MOV AH,2INT 21HMOV DL,0DHMOV AH,2INT 21HMOV N,0MOV DX,NUM1MOV F,DXLOP61:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HMOV F,AXJMP LOP61LOP71:MOV CL,NMOV CH,0LOP161:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOP161MOV DX,NUM2MOV F,DXMOV N,0MOV DX,OFFSET JIANMOV AH,09H INT 21H LOOOP61:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOOOP71MOV F,AXJMP LOOOP61LOOOP71:MOV CL,NMOV CH,0LOOOP161:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOOP161MOV DX,OFFSET DENGMOV AH,09HINT 21HMOV N,0MOV N,0MOV AX,NUM1SUB AX,NUM2MOV F,AXAND AX,10000000BCMP AX,10000000BJNE LOOP6NEG FLOOP6:MOV DX,0DIV BPUSH DXINC NCMP AX,0HJE LOOP7MOV F,AXJMP LOOP6LOOP7:MOV CL,NMOV CH,0LOOP16:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOP16MOV DL,0AH 输出换行和回车MOV AH,2INT 21HMOV DL,0DHMOV AH,2INT 21HMOV N,0MOV DX,NUM1MOV F,DXLOP62:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOP72MOV F,AXJMP LOP62LOP72:MOV CL,NMOV CH,0LOP162:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOP162MOV DX,NUM2MOV F,DXMOV N,0MOV DX,OFFSET CHENGMOV AH,09HINT 21HLOOOP62:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOOOP72MOV F,AXJMP LOOOP62LOOOP72:MOV CL,NMOV CH,0LOOOP162:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOOP162MOV DX,OFFSET DENGMOV AH,09HINT 21HMOV N,0MOV AX,NUM1MUL NUM2DIV CPUSH DXMOV F,AXMOV N,0LOOP8:MOV DX,0MOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOOP9MOV F,AXJMP LOOP8LOOP9:MOV CL,NMOV CH,0LOOP17:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOP17POP FLOOP10:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOOP11MOV F,AXJMP LOOP10LOOP11:MOV AL,NCMP AL,4HJE LOOP20MOV AL,4HSUB AL,NMOV CL,ALMOV CH,0LOOP19:MOV DX,'0'MOV AH,2INT 21HLOOP LOOP19LOOP20:MOV CL,NMOV CH,0LOOP18:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOP18MOV DL,0AH 输出换行和回车MOV AH,2INT 21HMOV DL,0DHMOV AH,2INT 21HMOV N,0MOV DX,NUM1MOV F,DXLOP64:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HMOV F,AXJMP LOP64LOP74:MOV CL,NMOV CH,0LOP164:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOP164MOV DX,NUM2MOV F,DXMOV N,0MOV DX,OFFSET chuMOV AH,09HINT 21HLOOOP64:MOV DX,0HMOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOOOP74MOV F,AXJMP LOOOP64LOOOP74:MOV CL,NMOV CH,0LOOOP164:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOOP164MOV DX,OFFSET DENGMOV AH,09HINT 21HMOV N,0MOV AX,NUM1MOV DX,0DIV NUM2PUSH DXMOV F,AXMOV N,0LOOP15:MOV DX,0MOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOOP12MOV F,AXJMP LOOP15LOOP12:MOV CL,NMOV CH,0LOOP21:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOP21MOV DX,OFFSET YUMOV AH,09HINT 21HPOP FMOV N,0LOOP13:MOV DX,0MOV AX,FDIV BPUSH DXINC NCMP AX,0HJE LOOP14MOV F,AXJMP LOOP13LOOP14:MOV CL,NMOV CH,0HLOOP22:POP DXADD DX,30HMOV AH,2INT 21HLOOP LOOP22MOV AH,4CHINT 21HCODES ENDSEND START实验五输入输出程序设计一、实验目的1) 掌握输入输出程序的编写方法。