130 lines
3.6 KiB
PHP
130 lines
3.6 KiB
PHP
; by ManHunter / PCL
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; http://www.manhunter.ru
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;-----------------------------------------------------
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; ”ãªæ¨ï ¯®«ãç¥¨ï ¤«¨ë áâப¨ (Fast)
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;-----------------------------------------------------
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; lpStr - 㪠§ ⥫ì áâபã ASCIIZ
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; <EFBFBD> ¢ë室¥: EAX - ¤«¨ áâப¨ ¡¥§ ãç¥â § ¢¥àè î饣®
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; ã«¥¢®£® ¡ ©â
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;-----------------------------------------------------
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;proc _lstrlen lpStr:DWORD
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; mov eax, [lpStr]
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; sub eax, 4
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;@@:
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; add eax, 4
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; cmp byte [eax], 0
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; je .szlen_lb1
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; cmp byte [eax+1], 0
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; je .szlen_lb2
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; cmp byte [eax+2], 0
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; je .szlen_lb3
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; cmp byte [eax+3], 0
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; jne @b
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; sub eax, [lpStr]
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; add eax, 3
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; ret
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;.szlen_lb3:
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; sub eax, [lpStr]
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; add eax, 2
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; ret
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;.szlen_lb2:
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; sub eax, [lpStr]
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; add eax, 1
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; ret
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;.szlen_lb1:
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; sub eax, [lpStr]
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; ret
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;endp
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;-----------------------------------------------------
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; ”ãªæ¨ï ¯®«ãç¥¨ï ¤«¨ë áâப¨
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;-----------------------------------------------------
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; lpStr - 㪠§ ⥫ì áâபã ASCIIZ
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; <EFBFBD> ¢ë室¥: EAX - ¤«¨ áâப¨ ¡¥§ ãç¥â § ¢¥àè î饣®
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; ã«¥¢®£® ¡ ©â
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;-----------------------------------------------------
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proc _lstrlen lpStr:DWORD
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push edi ecx
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cld
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mov edi,[lpStr]
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xor ecx,ecx
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dec ecx
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xor eax,eax
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repne scasb
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not ecx
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dec ecx
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mov eax,ecx
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pop ecx edi
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ret
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endp
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;-----------------------------------------------------
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; ”ãªæ¨ï ¡ëáâண® ᫨ï¨ï ¤¢ãå áâப
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; ¨á¯®«ì§ãîâáï äãªæ¨¨ _lstrlen, _lstrcpy
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;-----------------------------------------------------
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; lpDst - 㪠§ â¥«ì ¨á室ãî áâபã ASCIIZ
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; lpSrc - 㪠§ â¥«ì ¤®¡ ¢«ï¥¬ãî áâபã ASCIIZ
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;-----------------------------------------------------
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proc _lstrcat lpDst:DWORD, lpSrc:DWORD
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pusha
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stdcall _lstrlen,[lpDst]
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add eax,[lpDst]
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stdcall _lstrcpy,eax,[lpSrc]
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popa
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ret
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endp
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;-----------------------------------------------------
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; ”ãªæ¨ï ¡ëáâண® ª®¯¨à®¢ ¨ï áâப¨
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; ¨á¯®«ì§ãîâáï äãªæ¨¨ _lstrlen, _memcopy
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;-----------------------------------------------------
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; lpDst - 㪠§ â¥«ì ¯à¨¥¬¨ª
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; lpSrc - 㪠§ ⥫ì áâபã ASCIIZ
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;-----------------------------------------------------
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proc _lstrcpy lpDst:DWORD, lpSrc:DWORD
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pusha
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stdcall _lstrlen,[lpSrc]
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inc eax
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stdcall _memcopy,[lpDst],[lpSrc],eax
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popa
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ret
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endp
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;-----------------------------------------------------
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; ”ãªæ¨ï ¡ëáâண® ª®¯¨à®¢ ¨ï ãç á⪠¯ ¬ïâ¨
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;-----------------------------------------------------
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; lpDst - 㪠§ â¥«ì ¯à¨¥¬¨ª
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; lpSrc - 㪠§ â¥«ì ¨áâ®ç¨ª
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; dSize - à §¬¥à ª®¯¨à㥬®£® ¡«®ª
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;-----------------------------------------------------
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proc _memcopy lpDst:DWORD, lpSrc:DWORD, dSize:DWORD
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pusha
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; “áâ ®¢¨âì 㪠§ ⥫¨ ¨áâ®ç¨ª ¨ ¯à¨¥¬¨ª
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cld
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mov edi,[lpDst]
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mov esi,[lpSrc]
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mov ecx,[dSize]
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push ecx
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; <EFBFBD> §¤¥«¨âì 4 ¨ ¯®«ãç¨âì ¤«¨ã ¢ DWORD
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shr ecx,2
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; ‘ª®¯¨à®¢ âì ®á®¢ãî ç áâì áâப¨ DWORD' ¬¨
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rep movsd
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pop ecx
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; <EFBFBD>®«ãç¨âì ®áâ ⮪ ®â ¤¥«¥¨ï 4
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and ecx,3
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; ‘ª®¯¨à®¢ âì ®áâ ⮪ áâப¨ ¡ ©â ¬¨
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rep movsb
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popa
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ret
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endp
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