| 1,68 → 1,35 |
|---|
| ; strlen function |
| ; |
| ; Copyright (c) 2003 Thomas Mathys |
| ; killer@vantage.ch |
| ; Строковые функции |
| ; |
| ; This program is free software; you can redistribute it and/or modify |
| ; it under the terms of the GNU General Public License as published by |
| ; the Free Software Foundation; either version 2 of the License, or |
| ; (at your option) any later version. |
| ; |
| ; This program is distributed in the hope that it will be useful, |
| ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| ; GNU General Public License for more details. |
| ; |
| ; You should have received a copy of the GNU General Public License |
| ; along with this program; if not, write to the Free Software |
| ; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| ; |
| ;%ifndef _STRLEN_INC |
| ;%define _STRLEN_INC |
| |
| |
| ;******************************************************************** |
| ; returns the length of an asciiz string |
| ; input : esi = pointer to string |
| ; output : eax = string length |
| ; destroys : nothing |
| ;******************************************************************** |
| strlen: |
| push ecx edi |
| pushfd |
| cld ; ! |
| mov ecx,-1 |
| mov edi,esi ; find terminating zero |
| xor al,al |
| repne scasb |
| mov eax,edi ; calculate string length |
| sub eax,esi |
| dec eax |
| popfd |
| pop edi ecx |
| ;output: |
| ; eax = strlen |
| align 4 |
| proc str_len, str1:dword |
| mov eax,[str1] |
| @@: |
| cmp byte[eax],0 |
| je @f |
| inc eax |
| jmp @b |
| @@: |
| sub eax,[str1] |
| ret |
| endp |
| |
| |
| |
| ; linlen function |
| ; |
| ; Copyright (c) 2009 Igor Afanasiev |
| |
| linlen: |
| push ecx edi |
| pushfd |
| cld |
| align 4 |
| proc str_cat uses eax ecx edi esi, str1:dword, str2:dword |
| mov esi,[str2] |
| stdcall str_len,esi |
| mov ecx,eax |
| inc ecx |
| mov edi,esi ; find terminating zero |
| mov al,13 |
| repne scasb |
| mov eax,edi ; calculate string length |
| sub eax,esi |
| dec eax |
| popfd |
| pop edi ecx |
| mov edi,[str1] |
| stdcall str_len,edi |
| add edi,eax |
| cld |
| repne movsb |
| ret |
| endp |
| |
| ;description: |
| ; проверяет содержится ли строка str1 в строке str0 |
| 79,10 → 46,9 |
|---|
| mov esi,[str1] |
| cld |
| @@: |
| mov al,[esi] |
| cmp al,0 |
| je .e1 |
| inc esi |
| lodsb |
| or al,al |
| jz .e1 |
| scasb ;сравниваем символы |
| jz @b ;если совпали, то переходим к сравнению следующих |
| ;сюда попадаем если строки не совпали |
| 91,3 → 57,36 |
|---|
| ret |
| endp |
| |
| ;input: |
| ; eax - число |
| ; edi - буфер для строки |
| ; len - длинна буфера |
| ;output: |
| align 4 |
| proc convert_int_to_str uses eax ecx edx edi esi, len:dword |
| mov esi,[len] |
| add esi,edi |
| dec esi |
| call .str |
| ret |
| endp |
| |
| align 4 |
| .str: |
| mov ecx,10 |
| cmp eax,ecx |
| jb @f |
| xor edx,edx |
| div ecx |
| push edx |
| ;dec edi ;смещение необходимое для записи с конца строки |
| call .str |
| pop eax |
| @@: |
| cmp edi,esi |
| jge @f |
| or al,0x30 |
| stosb |
| mov byte[edi],0 ;в конец строки ставим 0, что-бы не вылазил мусор |
| @@: |
| ret |