kernel/include/kernel/x86/v86.hpp

   1 /*
   2 lightOS kernel
   3 Copyright (C) 2007-2009 Jörg Pfähler
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (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, write to the Free Software
  17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  18 */
  19 #ifndef LIGHTOS_KERNEL_X86_V86_HPP
  20 #define LIGHTOS_KERNEL_X86_V86_HPP
  21
  22 /*! \addtogroup kernel kernel */
  23 /*@{*/
  24 /*! \addtogroup x86 x86 */
  25 /*@{*/
  26
  27 #ifdef _LIGHTOS_V86
  28
  29 #include <cstdint>
  30 #include <kernel/processor.hpp>
  31
  32 namespace kernel
  33 {
  34         /*! The x86 cpu state */
  35         struct state86
  36         {
  37                 uint32_t eax;
  38                 uint32_t ebx;
  39                 uint32_t ecx;
  40                 uint32_t edx;
  41                 uint32_t ds;
  42                 uint32_t es;
  43                 uint32_t edi;
  44                 uint32_t esi;
  45         };
  46
  47         class v86
  48         {
  49                 public:
  50                         inline static v86 &instance(){return mInst;}
  51                         bool int86(     uint32_t number,
  52                                                 uint32_t eax,
  53                                                 uint32_t ebx,
  54                                                 uint32_t ecx,
  55                                                 uint32_t edx,
  56                                                 uint32_t ds,
  57                                                 uint32_t es,
  58                                                 uint32_t edi,
  59                                                 uint32_t esi);
  60                         state86 get_state();
  61                         bool is_v86_mode(){return bInV86;}
  62                         processorId processor_id(){return mProcessorId;}
  63                 private:
  64                         inline v86():bInV86(false){}
  65                         inline ~v86(){}
  66
  67                         static v86 mInst;
  68                         bool bInV86;
  69                         volatile processorId mProcessorId;
  70         };
  71 }
  72
  73 #endif
  74
  75 /*@}*/
  76 /*@}*/
  77
  78 #endif