apps/mserver/start.s

   1 ;  ZeX/OS
   2 ;  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   3 ;  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   4 ;
   5 ;  This program is free software: you can redistribute it and/or modify
   6 ;  it under the terms of the GNU General Public License as published by
   7 ;  the Free Software Foundation, either version 3 of the License, or
   8 ;  (at your option) any later version.
   9 ;
  10 ;  This program is distributed in the hope that it will be useful,
  11 ;  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ;  GNU General Public License for more details.
  14 ;
  15 ;  You should have received a copy of the GNU General Public License
  16 ;  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18
  19 ; This is the kernel's entry point. We could either call main here,
  20 ; or we can use this to setup the stack or other nice stuff, like
  21 ; perhaps setting up the GDT and segments. Please note that interrupts
  22 ; are disabled at this point: More on interrupts later!
  23
  24 [SECTION .text]
  25 [BITS 32]
  26
  27 extern main
  28 global entry
  29
  30 entry:
  31         ; first we get arguments
  32         mov eax, 26
  33         mov ecx, 0
  34         int 0x80
  35
  36         push eax        ; argv
  37
  38         ; lets get count of arguments
  39         mov eax, 26
  40         mov ecx, 1
  41         int 0x80
  42
  43         mov ebx, eax
  44         push ebx        ; argc
  45
  46         call main       ; call our program
  47
  48         pop ebx
  49         pop eax
  50
  51         ; proc exit
  52         mov eax, 1
  53         int 0x80
  54
  55         ret