Assembly MASM-cmpsb问题

我在比较两个字符串时遇到问题，一个字符串从irc服务器接收数据，一次一行，另一个保存硬编码数据（“PING:”） 但每次我尝试比较字符串时，都没有发生任何事情。你们能帮帮我吗

比较功能正在处理中

以下是我当前使用的代码：

.386
.model flat, stdcall
option casemap: none


include \masm32\include\windows.inc 
include \masm32\include\user32.inc 
include \masm32\include\kernel32.inc 
include \masm32\include\shell32.inc
include \masm32\include\wsock32.inc
include \masm32\include\masm32.inc
includelib \masm32\lib\shell32.lib
includelib \masm32\lib\user32.lib 
includelib \masm32\lib\kernel32.lib 
includelib \masm32\lib\wsock32.lib
includelib \masm32\lib\masm32.lib
include \masm32\include\msvcrt.inc
includelib  \masm32\lib\msvcrt.lib


.data

txt db "An error occured while calling WSAStartup",0
txt1 db "An error occured while creating a socket",0
txt2 db "An error occured while connecting",0
capt db "SCHiM",0
wsadata WSADATA <>
hostname db "irc.corruptcode.org",0
Port dd 6667 
USER db "USER SCHiMBez 8 * :SCHiMBez",13,10 
CHANNEL db "JOIN #botss",13,10  
NICK db "NICK SCHiMBez",13,10 
trans_buffer db 500 dup (0)
failmatch db "They match!",0
sin sockaddr_in <?>
buff      db 500 dup (0) 
bbuff db (0)
sendbuff db 500 dup (0)
Pong db "PONG :irc.corruptcode.org",13,10,0
Ping db "PING :irc.corruptcode.org"

CLRF    db 13d, 10d
lstring EQU     LENGTHOF Ping


.data?

sock dd ? 
ErrorCode  dd ?


.code



show_error proc caption:ptr byte, err_txt:ptr byte
    invoke WSAGetLastError
    mov ErrorCode, eax
    invoke MessageBoxA, MB_OK, caption, err_txt, 0
    ret
show_error endp

main proc
    invoke  AllocConsole
    invoke WSAStartup, 101h,addr wsadata

    .if eax==0   ; An error occured if eax != 0, because there's no return value for this api, if there's return, there's an error
        invoke socket,AF_INET,SOCK_STREAM,0     ; Create a stream socket for internet use
        .if eax!=INVALID_SOCKET
            mov sock,eax

            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Now we have a socket ready for use, we still have to be able to connect to somewere though...
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤

            mov sin.sin_family, AF_INET
            invoke htons, Port  ; convert port number into network byte order first
            mov sin.sin_port,ax ; note that this member is a word-size param.
            invoke gethostbyname, addr hostname

            mov eax,[eax+12]    ; move the value of h_list member into eax
            mov eax,[eax]       ; copy the pointer to the actual IP address into eax
            mov eax,[eax]       ; copy IP address into eax
            mov sin.sin_addr,eax

            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Now That's done we can connect to a site! (an irc channel in this case)
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤

            invoke connect, sock, addr sin, sizeof sin

;invoke lstrcpy, addr sendbuff, addr USER   

;call sndd  ;possible error producer ;p ;if it produces an error, uncomment...

invoke send, sock, addr USER, 29,   0   
invoke send, sock, addr NICK, 15,   0   
invoke send, sock, addr CHANNEL, 13,    0   




            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Receive response from the server
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤


  loopspt:  


        call Recvv  ;Receiving data



        call HandlePing
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Do something with the data
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤


        invoke MessageBox, 0, addr buff, addr capt, 0


 jmp loopspt 




            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;All data received & check for errors
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤

            .else
                invoke show_error, offset capt, offset txt2
            .endif
        .else
            invoke show_error, offset capt, offset txt1
        .endif
     invoke ExitProcess, 0

            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Recvv funciong
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
Recvv:

invoke RtlZeroMemory, addr buff, sizeof buff
mov bbuff, 0

Gline:

invoke recv,sock,addr bbuff,sizeof bbuff,0

cmp bbuff, 10d
je done

invoke lstrcat, addr buff, addr bbuff   

jmp Gline

done:
ret


            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Recvv funciong
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤


            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Ping? Pong! commented for now
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤


HandlePing:         


        cld                         ; Work upward
        mov     cx, lstring         ; Load length of string
        mov     esi, offset buff  ; Load offset of string1
        mov     edi, offset Ping  ; Load offset of string2
        repe    cmpsb               ; Compare
        je      allmatch            ; Jump if all match

        jmp zzor
        allmatch:                          
        invoke MessageBoxA, 0, addr failmatch, addr capt, MB_OK

zzor:
ret                             ;return

            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Ping? Pong! commented for now
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤


            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Send function
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤

sndd:

invoke lstrcat, addr sendbuff, 13d   ;this works 
invoke lstrcat, addr sendbuff, 10d   ;this works

invoke lstrlen, sendbuff    ;ERROR HERE, ERROR HERE!!!


invoke send, sock, addr sendbuff, eax,  0



ret

            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
            ;Send function
            ;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤





main endp
end main

.386
.平板模型，标准球
选项案例图：无
include\masm32\include\windows.inc
include\masm32\include\user32.inc
include\masm32\include\kernel32.inc
include\masm32\include\shell32.inc
include\masm32\include\wsock32.inc
include\masm32\include\masm32.inc
includelib\masm32\lib\shell32.lib
includelib\masm32\lib\user32.lib
includelib\masm32\lib\kernel32.lib
includelib\masm32\lib\wsock32.lib
includelib\masm32\lib\masm32.lib
include\masm32\include\msvcrt.inc
includelib\masm32\lib\msvcrt.lib
.数据
txt db“调用WSAStartup时出错”，0
txt1 db“创建套接字时出错”，0
txt2 db“连接时发生错误”，0
舰长db“SCHiM”，0
wsadata wsadata
主机名数据库“irc.corruptcode.org”，0
港口dd 6667
用户数据库“用户SCHiMBez 8*：SCHiMBez”，13,10
频道db“加入机器人”，13,10
NICK db“NICK SCHiMBez”，13,10
传输缓冲区数据库500 dup（0）
failmatch数据库“他们匹配！”，0
sin sockaddr_in
buff db 500 dup（0）
bbuff db（0）
sendbuff db 500 dup（0）
Pong db“Pong:irc.corruptcode.org”，13,10,0
Ping db“Ping:irc.corruptcode.org”
CLRF db 13d，10d
一等长度
.数据？
袜子？
错误代码dd？
.代码
显示错误过程标题：ptr字节，错误文本：ptr字节
调用WSAGetLastError
mov错误代码，eax
调用MessageBoxA，MB_OK，标题，err_txt，0
ret
显示错误endp
主进程
调用AllocSole
调用WSAStartup，101h，addr wsadata
。如果eax==0；如果eax！=0，因为此api没有返回值，如果有返回，则会出现错误
调用套接字，AF_INET，SOCK_STREAM，0；创建用于internet的流套接字
.如果eax=无效的\u套接字
电动袜子
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;现在我们有一个插座可以使用了，我们仍然需要能够连接到somewere，虽然。。。
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
mov sin.sin_家族，AF_INET
调用HTON，端口；首先将端口号转换为网络字节顺序
移动单端口，ax；请注意，此成员是一个字号参数。
调用gethostbyname，addr hostname
mov-eax[eax+12]；将h_列表成员的值移动到eax中
mov-eax[eax]；将指向实际IP地址的指针复制到eax中
mov-eax[eax]；将IP地址复制到eax中
移动单地址，eax
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;现在我们可以连接到一个站点了！（本例中为irc信道）
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
调用connect、sock、addr sin、sizeof sin
;调用lstrcpy、addr sendbuff、addr USER
;调用sndd；可能的错误产生者；P如果它产生错误，请取消注释。。。
调用send，sock，addr USER，29，0
调用send，sock，addr NICK，15,0
调用发送，sock，addr通道，13,0
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;从服务器接收响应
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
loopspt：
调用Recvv；接收数据
呼叫处理
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;对数据做点什么
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
调用MessageBox，0，地址buff，地址capt，0
jmp-loopspt
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;接收所有数据并检查错误
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
其他的
调用显示错误、偏移量capt、偏移量txt2
.endif
其他的
调用显示错误、偏移量capt、偏移量txt1
.endif
调用ExitProcess，0
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;Recvv功能
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
Recvv：
调用RtlZeroMemory、addr buff、sizeof buff
mov-bbuff，0
格琳：
调用recv、sock、addr bbuff、sizeof bbuff、0
cmp-bbuff，10d
我做完了
调用lstrcat、addr buff、addr bbuff
jmp胶质
完成：
ret
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;Recvv功能
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
    mov     cx, lstring         ; Load length of string