Annotation of qemu/cpu-defs.h, revision 1.1.1.1

1.1       root        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

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