asm.asm

DVD工具dvdsynth的源码

; Copyright 2002 Ben Rudiak-Gould.
;
; 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,
; or visit <http://www.gnu.org/copyleft/gpl.html>.


; void* __cdecl MakeThunkCall(void* func, void* args, unsigned arg_bytes);

segment .text
use32

global _MakeThunkCall

_MakeThunkCall:

      push  ebp
      mov   ebp,esp

      mov   edx,[ebp+12]   ; args
      mov   ecx,[ebp+16]   ; arg_bytes
      shr   ecx,2
      jz    .make_call

.copy_loop:
      dec   ecx
      push  dword [edx+ecx*4]
      jnz   .copy_loop

.make_call:
      call  [ebp+8]        ; func

      mov   esp,ebp
      pop   ebp
      ret