0,0 → 1,71 |
; strlen function |
; |
; Copyright (c) 2003 Thomas Mathys |
; killer@vantage.ch |
; |
; 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 |
push 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 |
pop ecx |
ret |
|
|
|
; linlen function |
; |
; Copyright (c) 2009 Igor Afanasiev |
|
linlen: |
push ecx |
push edi |
pushfd |
cld ; ! |
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 |
pop ecx |
ret |
;%endif |
|