要求掌握的汇编语言程序.doc

汇编语言程序设计1 将串HELLO!由原位置复制至目的位置DATA SEGMENTSRC_MESS DB HELLO!DATA ENDSEXTRA SEGMENTNEW_LOC DB 6 DUP(?)EXTRA ENDSCODE SEGMENT ASSUME CS:CODE , DS:DATA , ES:EXTRASTART: MOV AX, DATA MOV DS , AX MOV AX, EXTRA MOV ES , AX LEA SI, SRC_MESS LEA DI, NEW_LOC MOV CX, 6 CLD REP MOVSB MOV AH, 4CH INT 21HCODE ENDS END START2 将内存BUF1中的16进制数反向传送到BUF2中，要求BUF1的内容不被破坏，并统计BUF1中1的个数，（程序中，要求自己定义BUF1中数的数值）。参看课本122页，第三章习题12。DATA SEGMENT BUF1 DW 42F8H BUF2 DW ? NUM DB 0DATA ENDSCODE SEGMENT ASSUME CS:CODE,DS:DATASTART: MOV AX,DATA MOV DS,AX MOV CX, 16 MOV BX, 0 MOV AX,BUF1 next: ROR AX, 1 JNC COUNT INC BL COUNT: RCL DX,1 LOOP next MOV BUF2,DX MOV NUM,BL MOV AH,4CH INT 21HCODE ENDS END START3 编程实现下列函数的功能，其中X、Y为无符号字节数DATSEGMENTXDB24HYDB67HZDB?DATENDS CODSEGMENTASSUME DS: DAT, CS: CODMAINPROCFARPUSHDS; 保存返回地址SUBAX, AXPUSHAXMOVAX, DATMOVDS, AX; 初始化DSMOVAL, XMOVBL, YCMPAL, BLJEC1; (AL)(BL) 则跳转至C1，否则继续执行JAC2; (AL) (BL) 则跳转至C2，否则继续执行MOVAL, -1JMP EXTC1: MOVAL, 0JMP EXTC2: MOVAL, 1EXT: MOVZ, AL RET; 返回DOSMAINENDPCODENDSENDMAIN4八个数放在数据段中，求它们的和、最大值和最小值并放在数据段中（程序中，要求自己定义八个数的数值）。DATA SEGMENT ARRAY DW 353H,124H,512H,268H,600H,953H,740H,862H SUM DW ? MAX DW ? MIN DW ?DATA ENDSCODE SEGMENT ASSUME CS:CODE,DS:DATASTART: MOV AX,DATA MOV DS,AX MOV CX,7 MOV SI,0 MOV AX,ARRAYSI ;SUM MOV BX,ARRAYSI ;MAX MOV DX,ARRAYSI ;MIN NEXT: INC SI INC SI ADD AX,ARRAYSI CMP BX,ARRAYSI JG JMIN MOV BX,ARRAYSIJMIN: CMP DX,ARRAYSI JL LP MOV DX,ARRAYSILP: LOOP NEXT MOV SUM,AX MOV MAX,BX MOV MIN,DX MOV AH,4CH INT 21HCODE ENDS END START5 用过程调用方法，对数据段两个N字节BCD码数求和（程序中，要求自己定义两个数的数值）。DATA SEGMENT ONE DB 55H,22H,11H,44H TWO DB 11H,88H,99H,22H SUM DB 4 DUP (?) N DW 4 DATA ENDSSTACK SEGMENT STACK STACK STT DB 100 DUP(?)TOP EQU LENGTH STTSTACK ENDSCODE SEGMENTMAIN PROC FAR ASSUME CS:CODE,DS:DATA,SS:STACKSTART: MOV AX,STACK MOV SS,AX MOV SP,TOP PUSH DS SUB AX,AX PUSH AX MOV AX,DATA MOV DS,AX MOV ES,AX LEA SI,ONE LEA BX,TWO LEA DI,SUM CLD CLC MOV CX,N LP: CALL ADDBCD LOOP LP RETMAIN ENDPEND STARTADDBCD PROC NEAR LODSB ADC AL,BX DAA STOSB INC BX RETADDBCD ENDP6 从键盘输入字符存入内存缓冲区并同时显示在屏幕上，输入$时停止。DATA SEGMENT BUF DB 80 DUP (0)DATA ENDSCODE SEGMENT ASSUME CS:CODE,DS:DATASTART: MOV AX,DATA MOV DS,AX LEA SI,BUFINPUT:MOV AH,01 INT 21H MOV SI,AL INC SI CMP AL,$ JNZ INPUT MOV DL,2AH ;* MOV AH,02H INT 21H MOV AH,4CH INT 21HCODE ENDS END START7 在屏幕上输出Hello , World !DATA SEGMENT BUF DB Hello, World! $DATA ENDSCODE SEGMENTMAIN PROC FAR ASSUME CS:CODE,DS: