c27004ec78
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1189 c046a42c-6fe2-441c-8c8c-71466251a162
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/*
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* common defines for all CPUs
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef CPU_DEFS_H
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#define CPU_DEFS_H
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#include "config.h"
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#include <setjmp.h>
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#include <inttypes.h>
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#include "osdep.h"
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#ifndef TARGET_LONG_BITS
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#error TARGET_LONG_BITS must be defined before including this header
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#endif
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#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
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#define HOST_LONG_BITS 64
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#else
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#define HOST_LONG_BITS 32
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#endif
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#ifndef TARGET_PHYS_ADDR_BITS
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#if TARGET_LONG_BITS >= HOST_LONG_BITS
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#define TARGET_PHYS_ADDR_BITS TARGET_LONG_BITS
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#else
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#define TARGET_PHYS_ADDR_BITS HOST_LONG_BITS
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#endif
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#endif
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#define TARGET_LONG_SIZE (TARGET_LONG_BITS / 8)
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/* target_ulong is the type of a virtual address */
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#if TARGET_LONG_SIZE == 4
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typedef int32_t target_long;
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typedef uint32_t target_ulong;
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#define TARGET_FMT_lx "%08x"
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#elif TARGET_LONG_SIZE == 8
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typedef int64_t target_long;
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typedef uint64_t target_ulong;
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#define TARGET_FMT_lx "%016llx"
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#else
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#error TARGET_LONG_SIZE undefined
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#endif
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/* target_phys_addr_t is the type of a physical address (its size can
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be different from 'target_ulong'). We have sizeof(target_phys_addr)
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= max(sizeof(unsigned long),
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sizeof(size_of_target_physical_address)) because we must pass a
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host pointer to memory operations in some cases */
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#if TARGET_PHYS_ADDR_BITS == 32
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typedef uint32_t target_phys_addr_t;
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#elif TARGET_PHYS_ADDR_BITS == 64
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typedef uint64_t target_phys_addr_t;
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#else
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#error TARGET_PHYS_ADDR_BITS undefined
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#endif
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#define HOST_LONG_SIZE (HOST_LONG_BITS / 8)
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#define EXCP_INTERRUPT 256 /* async interruption */
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#define EXCP_HLT 257 /* hlt instruction reached */
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#define EXCP_DEBUG 258 /* cpu stopped after a breakpoint or singlestep */
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#define MAX_BREAKPOINTS 32
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#define CPU_TLB_SIZE 256
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typedef struct CPUTLBEntry {
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/* bit 31 to TARGET_PAGE_BITS : virtual address
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bit TARGET_PAGE_BITS-1..IO_MEM_SHIFT : if non zero, memory io
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zone number
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bit 3 : indicates that the entry is invalid
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bit 2..0 : zero
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*/
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target_ulong address;
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/* addend to virtual address to get physical address */
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target_phys_addr_t addend;
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} CPUTLBEntry;
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#endif
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