简单的bug找了一下午
现有一组字符串为data,name,time,file,code,path,user,exit,quit,text，请编写程序从键盘输入4个字符的字符串，若存在将其删除, 并在显示器上显示。
有空再加注释吧。
DATAS SEGMENT
BUF1 DB 'data,name,time,file,code,path,user,exit,quit,text','$'
BUF2 DB 5
DB ?
DB 5 DUP(?)
;此处输入数据段代码
DATAS ENDS
STACKS SEGMENT
;此处输入堆栈段代码
STACKS ENDS
CODES SEGMENT
ASSUME CS:CODES,DS:DATAS,SS:STACKS
START:
MOV AX,DATAS
MOV DS,AX
MOV ES,AX
LEA DX,BUF2
MOV AH,0AH
INT 21H
MOV DL,0AH
MOV AH,02H
INT 21H
MOV CH,10
MOV CL,04H
LEA SI,BUF1
LEA DI,BUF2[2]
L:
CMP CH,0
JZ END0
NEXT:
CMPSB
JNZ TIAOZHUAN
DEC CL
CMP CL,0
JZ CHANGE
JMP NEXT
TIAOZHUAN:
CMP CL,0
JZ DAYIN
DEC CL
INC SI
JMP TIAOZHUAN
DAYIN:
MOV DL,BUF1[SI-5]
MOV AH,02H
INT 21H
MOV DL,BUF1[SI-4]
MOV AH,02H
INT 21H
MOV DL,BUF1[SI-3]
MOV AH,02H
INT 21H
MOV DL,BUF1[SI-2]
MOV AH,02H
INT 21H
CMP BUF1[SI-1],'$'
JZ END0
MOV DL,BUF1[SI-1]
LEA DI,BUF2[2]
MOV AH,02H
INT 21H
MOV CL,4
DEC CH
JMP L
CHANGE:
INC SI
DEC CH
MOV CL,4
LEA DI,BUF2[2]
JMP L
END0:
;此处输入代码段代码
MOV AH,4CH
INT 21H
CODES ENDS
END START
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