source/mupen64plus-core/src/memory/tlb.h

   1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   2  *   Mupen64plus - tlb.h                                                   *
   3  *   Mupen64Plus homepage: http://code.google.com/p/mupen64plus/           *
   4  *   Copyright (C) 2002 Hacktarux                                          *
   5  *                                                                         *
   6  *   This program is free software; you can redistribute it and/or modify  *
   7  *   it under the terms of the GNU General Public License as published by  *
   8  *   the Free Software Foundation; either version 2 of the License, or     *
   9  *   (at your option) any later version.                                   *
  10  *                                                                         *
  11  *   This program is distributed in the hope that it will be useful,       *
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  14  *   GNU General Public License for more details.                          *
  15  *                                                                         *
  16  *   You should have received a copy of the GNU General Public License     *
  17  *   along with this program; if not, write to the                         *
  18  *   Free Software Foundation, Inc.,                                       *
  19  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
  20  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  21
  22 #ifndef TLB_H
  23 #define TLB_H
  24
  25 typedef struct _tlb
  26 {
  27    short mask;
  28    int vpn2;
  29    char g;
  30    unsigned char asid;
  31    int pfn_even;
  32    char c_even;
  33    char d_even;
  34    char v_even;
  35    int pfn_odd;
  36    char c_odd;
  37    char d_odd;
  38    char v_odd;
  39    char r;
  40    //int check_parity_mask;
  41
  42    unsigned int start_even;
  43    unsigned int end_even;
  44    unsigned int phys_even;
  45    unsigned int start_odd;
  46    unsigned int end_odd;
  47    unsigned int phys_odd;
  48 } tlb;
  49
  50 extern unsigned int tlb_LUT_r[0x100000];
  51 extern unsigned int tlb_LUT_w[0x100000];
  52 void tlb_unmap(tlb *entry);
  53 void tlb_map(tlb *entry);
  54 unsigned int virtual_to_physical_address(unsigned int addresse, int w);
  55
  56 #endif
  57