File:  [Qemu by Fabrice Bellard] / qemu / cpu-defs.h
Revision 1.1: download - view: text, annotated - select for diffs
Tue Apr 24 16:37:52 2018 UTC (3 years, 7 months ago) by root
CVS tags: MAIN, HEAD
Initial revision

    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: #include <inttypes.h>
   26: #include "osdep.h"
   27: 
   28: #ifndef TARGET_LONG_BITS
   29: #error TARGET_LONG_BITS must be defined before including this header
   30: #endif
   31: 
   32: #ifndef TARGET_PHYS_ADDR_BITS 
   33: #if TARGET_LONG_BITS >= HOST_LONG_BITS
   34: #define TARGET_PHYS_ADDR_BITS TARGET_LONG_BITS
   35: #else
   36: #define TARGET_PHYS_ADDR_BITS HOST_LONG_BITS
   37: #endif
   38: #endif
   39: 
   40: #define TARGET_LONG_SIZE (TARGET_LONG_BITS / 8)
   41: 
   42: /* target_ulong is the type of a virtual address */
   43: #if TARGET_LONG_SIZE == 4
   44: typedef int32_t target_long;
   45: typedef uint32_t target_ulong;
   46: #define TARGET_FMT_lx "%08x"
   47: #elif TARGET_LONG_SIZE == 8
   48: typedef int64_t target_long;
   49: typedef uint64_t target_ulong;
   50: #define TARGET_FMT_lx "%016llx"
   51: #else
   52: #error TARGET_LONG_SIZE undefined
   53: #endif
   54: 
   55: /* target_phys_addr_t is the type of a physical address (its size can
   56:    be different from 'target_ulong'). We have sizeof(target_phys_addr)
   57:    = max(sizeof(unsigned long),
   58:    sizeof(size_of_target_physical_address)) because we must pass a
   59:    host pointer to memory operations in some cases */
   60: 
   61: #if TARGET_PHYS_ADDR_BITS == 32
   62: typedef uint32_t target_phys_addr_t;
   63: #elif TARGET_PHYS_ADDR_BITS == 64
   64: typedef uint64_t target_phys_addr_t;
   65: #else
   66: #error TARGET_PHYS_ADDR_BITS undefined
   67: #endif
   68: 
   69: /* address in the RAM (different from a physical address) */
   70: typedef unsigned long ram_addr_t;
   71: 
   72: #define HOST_LONG_SIZE (HOST_LONG_BITS / 8)
   73: 
   74: #define EXCP_INTERRUPT 	0x10000 /* async interruption */
   75: #define EXCP_HLT        0x10001 /* hlt instruction reached */
   76: #define EXCP_DEBUG      0x10002 /* cpu stopped after a breakpoint or singlestep */
   77: 
   78: #define MAX_BREAKPOINTS 32
   79: 
   80: #define CPU_TLB_SIZE 256
   81: 
   82: typedef struct CPUTLBEntry {
   83:     /* bit 31 to TARGET_PAGE_BITS : virtual address 
   84:        bit TARGET_PAGE_BITS-1..IO_MEM_SHIFT : if non zero, memory io
   85:                                               zone number
   86:        bit 3                      : indicates that the entry is invalid
   87:        bit 2..0                   : zero
   88:     */
   89:     target_ulong address; 
   90:     /* addend to virtual address to get physical address */
   91:     target_phys_addr_t addend; 
   92: } CPUTLBEntry;
   93: 
   94: #endif

unix.superglobalmegacorp.com