admc/attic/platform_asm.asm

;; This file is part of asmc, a bootstrapping OS with minimal seed
;; Copyright (C) 2018 Giovanni Mascellani <gio@debian.org>
;; https://gitlab.com/giomasce/asmc

;; 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 3 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, see <https://www.gnu.org/licenses/>.

global do_syscall
do_syscall:
  push ebp
  mov ebp, esp
  push ebx

  mov edx, [ebp+20]
  mov ecx, [ebp+16]
  mov ebx, [ebp+12]
  mov eax, [ebp+8]
  int 0x80

  pop ebx
  pop ebp
  ret