cpu-defs.h

   1 /*
   2  * common defines for all CPUs
   3  *
   4  * Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library 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 GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #ifndef CPU_DEFS_H
  21 #define CPU_DEFS_H
  22
  23 #include "config.h"
  24 #include <setjmp.h>
  25
  26 #ifndef TARGET_LONG_BITS
  27 #error TARGET_LONG_BITS must be defined before including this header
  28 #endif
  29
  30 #define TARGET_LONG_SIZE (TARGET_LONG_BITS / 8)
  31
  32 #if TARGET_LONG_SIZE == 4
  33 typedef int32_t target_long;
  34 typedef uint32_t target_ulong;
  35 #elif TARGET_LONG_SIZE == 8
  36 typedef int64_t target_long;
  37 typedef uint64_t target_ulong;
  38 #else
  39 #error TARGET_LONG_SIZE undefined
  40 #endif
  41
  42 #define EXCP_INTERRUPT  256 /* async interruption */
  43 #define EXCP_HLT        257 /* hlt instruction reached */
  44 #define EXCP_DEBUG      258 /* cpu stopped after a breakpoint or singlestep */
  45
  46 #define MAX_BREAKPOINTS 32
  47
  48 #define CPU_TLB_SIZE 256
  49
  50 typedef struct CPUTLBEntry {
  51     /* bit 31 to TARGET_PAGE_BITS : virtual address
  52        bit TARGET_PAGE_BITS-1..IO_MEM_SHIFT : if non zero, memory io
  53                                               zone number
  54        bit 3                      : indicates that the entry is invalid
  55        bit 2..0                   : zero
  56     */
  57     uint32_t address;
  58     /* addend to virtual address to get physical address */
  59     uint32_t addend;
  60 } CPUTLBEntry;
  61
  62 #endif