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Cmp byte ptr si 0

Web汇编语言程序设计实验教程第二章实验报告.pdf,汇编语言程序设计实验教程第二章 实验报告 实验2.1 用表格形式显示字符 1．题目：用表格形式显示ascii 字符smascii 2 ．实验要求： 按 15 行*16 列的表格形式显示ascii 码为 10h－100h 的所有字符，即以行为主的顺 序及 ascii 码递增的次序依次显示对应的字符。 Weblea si,buf1+2. again: cmp byte ptr [si],' ' jnz t1. inc num1 t1: inc si loop again pop cx. lea si,buf1+2 again1: cmp byte ptr [si],'a' jnz t. inc num2 t: inc si. loop again1. mov dl,10 mov al,num1. mov ah,0. div dl or ax,3030h. mov word ptr buf3+7,ax. mov al,num2 mov ah,0. div dl. or ax,3030h. 上一页 第2页 下一页

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WebSep 4, 2012 · 00401352 . 385437 FE cmp byte ptr ds:[edi+esi-2],dl. 00401356 . 75 10 jnz short main.00401368. 00401358 . 5F pop edi. 00401359 . 66:C741 FF 0000 mov word ptr ds:[ecx-1],0. 0040135F . C641 FE 00 mov byte ptr ds:[ecx-2],0. 00401363 . 5E pop esi. 00401364 . 8BE5 mov esp,ebp. 00401366 . 5D pop ebp. 00401367 . C3 retn. 00401368 … WebESI is a pointer to the original string, EAX is a pointer to the destination, but might be zero as well, and ECX is a pointer to the length of the string. The table at 0x6C25EF39 would be a 256-byte table, using the ascii code as index, which has some flags per byte that define the character's property. Like this: hotspots definition geography https://phoenix820.com

Transformation of assembly code into C language (decompilation)

Webpush si push ds push cs pop ds mov byte ptr nz,0 push ax lea si,divarr mov cx,5 @1: pop ax mov dx,0 mov bx,[si] div bx push dx cmp al,0 jne @2 cmp byte ptr nz,1 je @2 cmp cx,1 je @2 mov dl,20h jmp @3 @2: add al,30h mov dl,al WebIf they differ, the cmp command displays the byte and line number at which the first difference occurs. If the -l flag is specified and if one file is an initial subsequence of the … WebAug 29, 2024 · mov QWORD PTR [rbp-0x30],0x4020c5 means exactly "move 0x4020c5 to a memory location rbp-0x30 and treat this number as qword" (8 - byte number).. But q is at the memory location rbp - 0x30, so anything you write into that address, will be written into q.So, the number 0x4020c5 was written into q.The number 0x4020c5 is not a string itself … linedancing charts

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Cmp byte ptr si 0

Meaning of cmp byte ptr [EBP-9], 0 - Reverse Engineering …

Web2 Chapter 1 x86 and x64 by having user-mode applications run in ring 3, and the kernel in ring 0. The ring level is enco ded in t he CS register and sometimes referred to as the current privilege level (CPL) in offi cial documentation. This chapter discusses the x86/IA-32 architecture as defi ned in theIntel 64 and IA-32 Architectures Software … WebOct 19, 2024 · movb WORD [ecx], 0 is same as movb 2[ecx], 0 or mov BYTE PTR [ecx+2], 0. mov eax, WORD is the same as mov eax,2 . mov eax, BYTE is the same as mov …

Cmp byte ptr si 0

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WebCMP BYTE PTR [SI+2],0 JZ validate_malformed ; NUL path (just d:) validate_loop: LODSB validate_loop1: IF KANJI invoke TESTKANJ JZ NOTKANJ6 INC SI JMP validate_loop ... MOV BYTE PTR [SI.dpb_dir_text],0 current_move: ADD SI,dpb_dir_text MOV CX,DIRSTRLEN current_loop: LODSB STOSB OR AL,AL LOOPNZ current_loop … Web东南微机接口第二章微型计算机指令系统续.pdf 7页

Webdescription. Compare two files byte by byte. The optional SKIP1 and SKIP2 specify the number of bytes to skip at the beginning of each file (zero by default). Mandatory … Webcmp byte ptr 2 [si], 'q' je exit; if the input is '\n', then begin query: cmp byte ptr 2 [si], 13: je login_return: call check_username_and_pwd: cmp auth, 1: je login_return: jmp login_start: login_return: popa: ret: ... mov dl, byte ptr 0 [si] mov dh, 0: call dispdec;销售价 ...

Webmov BYTE PTR [ESI], 5 ; Store 8-bit value mov WORD PTR [ESI], 5 ; Store 16-bit value mov DWORD PTR [ESI], 5 ; Store 32-bit value ... In general, PTR operator forces expression to be treated as a pointer of specified type: .DATA num DWORD 0 .CODE mov ax, WORD PTR [num] ; Load a word-size value from a DWORD ... http://www.linux-commands-examples.com/cmp

WebDec 15, 2024 · byte ptr indicates that the memory operand refers to a byte in memory as opposed to a word or dword. Usually, this can be omitted as the assembler can infer the …

Web1266:0035 46 inc si 1266:0036 47 inc di 1266:0037 803c00 cmp byte ptr [si],00 1266:003a 7505 jnz 0041 1266:003c 803d00 cmp byte ptr [di],00 1266:003f 7412 jz 0053 1266:0041 8a04 mov al,[si] → 1266:0043 3a05 cmp al,[di] 1266:0045 74ee jz 0035 1266:0047 7305 jnb 004e 1266:0049 b8ffff mov ax,ffff 1266:004c eb07 jmp 0055 1266:004e b80100 mov … line dancing burnham on seaWebcmp byte ptr [DI],0 jnz CHKSWTCHES mov dx,offset trangroup:BADCD cmp byte ptr [DI-2],':' jnz CERROR4J ; Trailing '/' error mov [bp.ISDIR],2 ; Know destination is d:/ or … hotspot security settingsWebMay 8, 2013 · The Boot Record itself: Microsoft's MSWIN4.1 Boot Record is actually 3 sectors long, and is found at Logical Sectors 0 through 2 for any volume, or Absolute Sectors 63 through 65 of a drive having only a single FAT32 partition, or when that partition is the very first one on your Drive. It may obviously reside elsewhere if your HDD is ... hotspot security typeWebcmp : BYTE PTR [si], 0 ; looking for the null terminator : movsb ; mov's do not affect flags! jnz : CpyLoop : Notice that the compare had to be done before the movsb which changes … hotspot security codeWebMar 3, 2024 · db '-mov byte ptr[di],al--inc si--inc di--dec cx--cmp cx,1224--je t--cmp cx,1074--je t--cmp cx,924--je t--cmp cx,774--je t--cmp cx,624--je t--cmp cx,474--' ... ,bl-je s-jmp u-s:mov byte ptr[edx],al-u:inc edx-dec cx-cmp cx,0-jnz r-cmp bl,0Ah-je td-push offset a-push offset i-call printf-jmp ll-td:-lea edi,[n' db ']-lea esi,[a]-mov cx,1372-sn:mov ... hotspot server compilerWebJun 14, 2005 · e90 be 0 1 bf 0 1 80 3c %CH% a4 75 1 4f e2 f7 89 ea0 f9 81 e9 0 1 cc is equivalent to: 90 mov si,100 93 mov di,100 96 cmp byte ptr [si],%CH% 99 movsb 9a jnz 9d 9c dec di 9d loop 96 9f mov cx,di a1 sub cx,100 a5 int 3. where %CH% is the hex value for character to be removed. line dancing brooklyn nyWeblds si, sbuffer ; Point DS:SI at source buffer: mov bx,0: mov ah,0 ; Be sure AH is clean: cld: looptop: mov al,BYTE PTR [ds:si] ; Get runlength byte: and al,128 ; Repeat run or random run? jz randrun ; If random run, skip ahead: mov al,BYTE PTR [ds:si] ; Else get runlength byte again: and al,127 ; Remove high bit of count: inc si ; Point to ... line dancing caboolture area