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/*
* defines common to all virtual CPUs
*
* Copyright ( c ) 2003 Fabrice Bellard
*
* This library is free software ; you can redistribute it and / or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation ; either
* version 2 of the License , or ( at your option ) any later version .
*
* This library is distributed in the hope that it will be useful ,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
* Lesser General Public License for more details .
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library ; if not , write to the Free Software
* Foundation , Inc ., 59 Temple Place , Suite 330 , Boston , MA 02111 - 1307 USA
*/
# ifndef CPU_ALL_H
# define CPU_ALL_H
ths
authored
18 years ago
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# if defined ( __arm__ ) || defined ( __sparc__ ) || defined ( __mips__ )
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# define WORDS_ALIGNED
# endif
/* some important defines :
*
* WORDS_ALIGNED : if defined , the host cpu can only make word aligned
* memory accesses .
*
* WORDS_BIGENDIAN : if defined , the host cpu is big endian and
* otherwise little endian .
*
* ( TARGET_WORDS_ALIGNED : same for target cpu ( not supported yet ))
*
* TARGET_WORDS_BIGENDIAN : same for target cpu
*/
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# include "bswap.h"
# if defined ( WORDS_BIGENDIAN ) != defined ( TARGET_WORDS_BIGENDIAN )
# define BSWAP_NEEDED
# endif
# ifdef BSWAP_NEEDED
static inline uint16_t tswap16 ( uint16_t s )
{
return bswap16 ( s );
}
static inline uint32_t tswap32 ( uint32_t s )
{
return bswap32 ( s );
}
static inline uint64_t tswap64 ( uint64_t s )
{
return bswap64 ( s );
}
static inline void tswap16s ( uint16_t * s )
{
* s = bswap16 ( * s );
}
static inline void tswap32s ( uint32_t * s )
{
* s = bswap32 ( * s );
}
static inline void tswap64s ( uint64_t * s )
{
* s = bswap64 ( * s );
}
# else
static inline uint16_t tswap16 ( uint16_t s )
{
return s ;
}
static inline uint32_t tswap32 ( uint32_t s )
{
return s ;
}
static inline uint64_t tswap64 ( uint64_t s )
{
return s ;
}
static inline void tswap16s ( uint16_t * s )
{
}
static inline void tswap32s ( uint32_t * s )
{
}
static inline void tswap64s ( uint64_t * s )
{
}
# endif
# if TARGET_LONG_SIZE == 4
# define tswapl ( s ) tswap32 ( s )
# define tswapls ( s ) tswap32s (( uint32_t * )( s ))
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# define bswaptls ( s ) bswap32s ( s )
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# else
# define tswapl ( s ) tswap64 ( s )
# define tswapls ( s ) tswap64s (( uint64_t * )( s ))
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# define bswaptls ( s ) bswap64s ( s )
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# endif
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/* NOTE : arm FPA is horrible as double 32 bit words are stored in big
endian ! */
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typedef union {
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float64 d ;
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# if defined ( WORDS_BIGENDIAN ) \
|| ( defined ( __arm__ ) && ! defined ( __VFP_FP__ ) && ! defined ( CONFIG_SOFTFLOAT ))
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struct {
uint32_t upper ;
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uint32_t lower ;
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} l ;
# else
struct {
uint32_t lower ;
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uint32_t upper ;
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} l ;
# endif
uint64_t ll ;
} CPU_DoubleU ;
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/* CPU memory access without any memory or io remapping */
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/*
* the generic syntax for the memory accesses is :
*
* load : ld { type }{ sign }{ size }{ endian } _ { access_type }( ptr )
*
* store : st { type }{ size }{ endian } _ { access_type }( ptr , val )
*
* type is :
* ( empty ) : integer access
* f : float access
*
* sign is :
* ( empty ) : for floats or 32 bit size
* u : unsigned
* s : signed
*
* size is :
* b : 8 bits
* w : 16 bits
* l : 32 bits
* q : 64 bits
*
* endian is :
* ( empty ) : target cpu endianness or 8 bit access
* r : reversed target cpu endianness ( not implemented yet )
* be : big endian ( not implemented yet )
* le : little endian ( not implemented yet )
*
* access_type is :
* raw : host memory access
* user : user mode access using soft MMU
* kernel : kernel mode access using soft MMU
*/
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static inline int ldub_p ( void * ptr )
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{
return * ( uint8_t * ) ptr ;
}
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static inline int ldsb_p ( void * ptr )
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{
return * ( int8_t * ) ptr ;
}
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static inline void stb_p ( void * ptr , int v )
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{
* ( uint8_t * ) ptr = v ;
}
/* NOTE : on arm , putting 2 in / proc / sys / debug / alignment so that the
kernel handles unaligned load / stores may give better results , but
it is a system wide setting : bad */
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# if defined ( WORDS_BIGENDIAN ) || defined ( WORDS_ALIGNED )
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/* conservative code for little endian unaligned accesses */
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static inline int lduw_le_p ( void * ptr )
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{
# ifdef __powerpc__
int val ;
__asm__ __volatile__ ( "lhbrx %0,0,%1" : "=r" ( val ) : "r" ( ptr ));
return val ;
# else
uint8_t * p = ptr ;
return p [ 0 ] | ( p [ 1 ] << 8 );
# endif
}
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static inline int ldsw_le_p ( void * ptr )
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{
# ifdef __powerpc__
int val ;
__asm__ __volatile__ ( "lhbrx %0,0,%1" : "=r" ( val ) : "r" ( ptr ));
return ( int16_t ) val ;
# else
uint8_t * p = ptr ;
return ( int16_t )( p [ 0 ] | ( p [ 1 ] << 8 ));
# endif
}
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static inline int ldl_le_p ( void * ptr )
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{
# ifdef __powerpc__
int val ;
__asm__ __volatile__ ( "lwbrx %0,0,%1" : "=r" ( val ) : "r" ( ptr ));
return val ;
# else
uint8_t * p = ptr ;
return p [ 0 ] | ( p [ 1 ] << 8 ) | ( p [ 2 ] << 16 ) | ( p [ 3 ] << 24 );
# endif
}
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static inline uint64_t ldq_le_p ( void * ptr )
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{
uint8_t * p = ptr ;
uint32_t v1 , v2 ;
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v1 = ldl_le_p ( p );
v2 = ldl_le_p ( p + 4 );
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return v1 | (( uint64_t ) v2 << 32 );
}
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static inline void stw_le_p ( void * ptr , int v )
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{
# ifdef __powerpc__
__asm__ __volatile__ ( "sthbrx %1,0,%2" : "=m" ( * ( uint16_t * ) ptr ) : "r" ( v ), "r" ( ptr ));
# else
uint8_t * p = ptr ;
p [ 0 ] = v ;
p [ 1 ] = v >> 8 ;
# endif
}
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static inline void stl_le_p ( void * ptr , int v )
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{
# ifdef __powerpc__
__asm__ __volatile__ ( "stwbrx %1,0,%2" : "=m" ( * ( uint32_t * ) ptr ) : "r" ( v ), "r" ( ptr ));
# else
uint8_t * p = ptr ;
p [ 0 ] = v ;
p [ 1 ] = v >> 8 ;
p [ 2 ] = v >> 16 ;
p [ 3 ] = v >> 24 ;
# endif
}
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static inline void stq_le_p ( void * ptr , uint64_t v )
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{
uint8_t * p = ptr ;
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stl_le_p ( p , ( uint32_t ) v );
stl_le_p ( p + 4 , v >> 32 );
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}
/* float access */
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static inline float32 ldfl_le_p ( void * ptr )
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{
union {
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float32 f ;
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uint32_t i ;
} u ;
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u . i = ldl_le_p ( ptr );
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return u . f ;
}
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static inline void stfl_le_p ( void * ptr , float32 v )
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{
union {
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float32 f ;
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uint32_t i ;
} u ;
u . f = v ;
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stl_le_p ( ptr , u . i );
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}
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static inline float64 ldfq_le_p ( void * ptr )
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{
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CPU_DoubleU u ;
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u . l . lower = ldl_le_p ( ptr );
u . l . upper = ldl_le_p ( ptr + 4 );
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return u . d ;
}
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static inline void stfq_le_p ( void * ptr , float64 v )
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{
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CPU_DoubleU u ;
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u . d = v ;
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stl_le_p ( ptr , u . l . lower );
stl_le_p ( ptr + 4 , u . l . upper );
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}
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# else
static inline int lduw_le_p ( void * ptr )
{
return * ( uint16_t * ) ptr ;
}
static inline int ldsw_le_p ( void * ptr )
{
return * ( int16_t * ) ptr ;
}
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static inline int ldl_le_p ( void * ptr )
{
return * ( uint32_t * ) ptr ;
}
static inline uint64_t ldq_le_p ( void * ptr )
{
return * ( uint64_t * ) ptr ;
}
static inline void stw_le_p ( void * ptr , int v )
{
* ( uint16_t * ) ptr = v ;
}
static inline void stl_le_p ( void * ptr , int v )
{
* ( uint32_t * ) ptr = v ;
}
static inline void stq_le_p ( void * ptr , uint64_t v )
{
* ( uint64_t * ) ptr = v ;
}
/* float access */
static inline float32 ldfl_le_p ( void * ptr )
{
return * ( float32 * ) ptr ;
}
static inline float64 ldfq_le_p ( void * ptr )
{
return * ( float64 * ) ptr ;
}
static inline void stfl_le_p ( void * ptr , float32 v )
{
* ( float32 * ) ptr = v ;
}
static inline void stfq_le_p ( void * ptr , float64 v )
{
* ( float64 * ) ptr = v ;
}
# endif
# if ! defined ( WORDS_BIGENDIAN ) || defined ( WORDS_ALIGNED )
static inline int lduw_be_p ( void * ptr )
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{
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# if defined ( __i386__ )
int val ;
asm volatile ( "movzwl %1, %0 \n "
"xchgb %b0, %h0 \n "
: "=q" ( val )
: "m" ( * ( uint16_t * ) ptr ));
return val ;
# else
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uint8_t * b = ( uint8_t * ) ptr ;
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return (( b [ 0 ] << 8 ) | b [ 1 ]);
# endif
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}
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static inline int ldsw_be_p ( void * ptr )
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{
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# if defined ( __i386__ )
int val ;
asm volatile ( "movzwl %1, %0 \n "
"xchgb %b0, %h0 \n "
: "=q" ( val )
: "m" ( * ( uint16_t * ) ptr ));
return ( int16_t ) val ;
# else
uint8_t * b = ( uint8_t * ) ptr ;
return ( int16_t )(( b [ 0 ] << 8 ) | b [ 1 ]);
# endif
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}
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static inline int ldl_be_p ( void * ptr )
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{
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# if defined ( __i386__ ) || defined ( __x86_64__ )
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int val ;
asm volatile ( "movl %1, %0 \n "
"bswap %0 \n "
: "=r" ( val )
: "m" ( * ( uint32_t * ) ptr ));
return val ;
# else
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uint8_t * b = ( uint8_t * ) ptr ;
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return ( b [ 0 ] << 24 ) | ( b [ 1 ] << 16 ) | ( b [ 2 ] << 8 ) | b [ 3 ];
# endif
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}
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static inline uint64_t ldq_be_p ( void * ptr )
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{
uint32_t a , b ;
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a = ldl_be_p ( ptr );
b = ldl_be_p ( ptr + 4 );
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return ((( uint64_t ) a << 32 ) | b );
}
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static inline void stw_be_p ( void * ptr , int v )
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{
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# if defined ( __i386__ )
asm volatile ( "xchgb %b0, %h0 \n "
"movw %w0, %1 \n "
: "=q" ( v )
: "m" ( * ( uint16_t * ) ptr ), "0" ( v ));
# else
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uint8_t * d = ( uint8_t * ) ptr ;
d [ 0 ] = v >> 8 ;
d [ 1 ] = v ;
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# endif
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}
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static inline void stl_be_p ( void * ptr , int v )
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{
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# if defined ( __i386__ ) || defined ( __x86_64__ )
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asm volatile ( "bswap %0 \n "
"movl %0, %1 \n "
: "=r" ( v )
: "m" ( * ( uint32_t * ) ptr ), "0" ( v ));
# else
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uint8_t * d = ( uint8_t * ) ptr ;
d [ 0 ] = v >> 24 ;
d [ 1 ] = v >> 16 ;
d [ 2 ] = v >> 8 ;
d [ 3 ] = v ;
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# endif
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}
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static inline void stq_be_p ( void * ptr , uint64_t v )
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{
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stl_be_p ( ptr , v >> 32 );
stl_be_p ( ptr + 4 , v );
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}
/* float access */
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static inline float32 ldfl_be_p ( void * ptr )
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{
union {
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float32 f ;
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uint32_t i ;
} u ;
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u . i = ldl_be_p ( ptr );
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return u . f ;
}
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static inline void stfl_be_p ( void * ptr , float32 v )
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{
union {
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float32 f ;
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uint32_t i ;
} u ;
u . f = v ;
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stl_be_p ( ptr , u . i );
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}
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static inline float64 ldfq_be_p ( void * ptr )
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{
CPU_DoubleU u ;
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u . l . upper = ldl_be_p ( ptr );
u . l . lower = ldl_be_p ( ptr + 4 );
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return u . d ;
}
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static inline void stfq_be_p ( void * ptr , float64 v )
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{
CPU_DoubleU u ;
u . d = v ;
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stl_be_p ( ptr , u . l . upper );
stl_be_p ( ptr + 4 , u . l . lower );
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}
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# else
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static inline int lduw_be_p ( void * ptr )
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{
return * ( uint16_t * ) ptr ;
}
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static inline int ldsw_be_p ( void * ptr )
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{
return * ( int16_t * ) ptr ;
}
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static inline int ldl_be_p ( void * ptr )
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{
return * ( uint32_t * ) ptr ;
}
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static inline uint64_t ldq_be_p ( void * ptr )
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{
return * ( uint64_t * ) ptr ;
}
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static inline void stw_be_p ( void * ptr , int v )
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{
* ( uint16_t * ) ptr = v ;
}
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static inline void stl_be_p ( void * ptr , int v )
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{
* ( uint32_t * ) ptr = v ;
}
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static inline void stq_be_p ( void * ptr , uint64_t v )
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{
* ( uint64_t * ) ptr = v ;
}
/* float access */
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static inline float32 ldfl_be_p ( void * ptr )
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{
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return * ( float32 * ) ptr ;
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}
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static inline float64 ldfq_be_p ( void * ptr )
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{
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return * ( float64 * ) ptr ;
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}
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static inline void stfl_be_p ( void * ptr , float32 v )
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{
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* ( float32 * ) ptr = v ;
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}
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static inline void stfq_be_p ( void * ptr , float64 v )
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{
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* ( float64 * ) ptr = v ;
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}
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# endif
/* target CPU memory access functions */
# if defined ( TARGET_WORDS_BIGENDIAN )
# define lduw_p ( p ) lduw_be_p ( p )
# define ldsw_p ( p ) ldsw_be_p ( p )
# define ldl_p ( p ) ldl_be_p ( p )
# define ldq_p ( p ) ldq_be_p ( p )
# define ldfl_p ( p ) ldfl_be_p ( p )
# define ldfq_p ( p ) ldfq_be_p ( p )
# define stw_p ( p , v ) stw_be_p ( p , v )
# define stl_p ( p , v ) stl_be_p ( p , v )
# define stq_p ( p , v ) stq_be_p ( p , v )
# define stfl_p ( p , v ) stfl_be_p ( p , v )
# define stfq_p ( p , v ) stfq_be_p ( p , v )
# else
# define lduw_p ( p ) lduw_le_p ( p )
# define ldsw_p ( p ) ldsw_le_p ( p )
# define ldl_p ( p ) ldl_le_p ( p )
# define ldq_p ( p ) ldq_le_p ( p )
# define ldfl_p ( p ) ldfl_le_p ( p )
# define ldfq_p ( p ) ldfq_le_p ( p )
# define stw_p ( p , v ) stw_le_p ( p , v )
# define stl_p ( p , v ) stl_le_p ( p , v )
# define stq_p ( p , v ) stq_le_p ( p , v )
# define stfl_p ( p , v ) stfl_le_p ( p , v )
# define stfq_p ( p , v ) stfq_le_p ( p , v )
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# endif
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/* MMU memory access macros */
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# if defined ( CONFIG_USER_ONLY )
/* On some host systems the guest address space is reserved on the host .
* This allows the guest address space to be offset to a convenient location .
*/
// # define GUEST_BASE 0x20000000
# define GUEST_BASE 0
/* All direct uses of g2h and h2g need to go away for usermode softmmu. */
# define g2h ( x ) (( void * )(( unsigned long )( x ) + GUEST_BASE ))
# define h2g ( x ) (( target_ulong )( x - GUEST_BASE ))
# define saddr ( x ) g2h ( x )
# define laddr ( x ) g2h ( x )
# else /* !CONFIG_USER_ONLY */
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/* NOTE : we use double casts if pointers and target_ulong have
different sizes */
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# define saddr ( x ) ( uint8_t * )( long )( x )
# define laddr ( x ) ( uint8_t * )( long )( x )
# endif
# define ldub_raw ( p ) ldub_p ( laddr (( p )))
# define ldsb_raw ( p ) ldsb_p ( laddr (( p )))
# define lduw_raw ( p ) lduw_p ( laddr (( p )))
# define ldsw_raw ( p ) ldsw_p ( laddr (( p )))
# define ldl_raw ( p ) ldl_p ( laddr (( p )))
# define ldq_raw ( p ) ldq_p ( laddr (( p )))
# define ldfl_raw ( p ) ldfl_p ( laddr (( p )))
# define ldfq_raw ( p ) ldfq_p ( laddr (( p )))
# define stb_raw ( p , v ) stb_p ( saddr (( p )), v )
# define stw_raw ( p , v ) stw_p ( saddr (( p )), v )
# define stl_raw ( p , v ) stl_p ( saddr (( p )), v )
# define stq_raw ( p , v ) stq_p ( saddr (( p )), v )
# define stfl_raw ( p , v ) stfl_p ( saddr (( p )), v )
# define stfq_raw ( p , v ) stfq_p ( saddr (( p )), v )
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# if defined ( CONFIG_USER_ONLY )
/* if user mode, no other memory access functions */
# define ldub ( p ) ldub_raw ( p )
# define ldsb ( p ) ldsb_raw ( p )
# define lduw ( p ) lduw_raw ( p )
# define ldsw ( p ) ldsw_raw ( p )
# define ldl ( p ) ldl_raw ( p )
# define ldq ( p ) ldq_raw ( p )
# define ldfl ( p ) ldfl_raw ( p )
# define ldfq ( p ) ldfq_raw ( p )
# define stb ( p , v ) stb_raw ( p , v )
# define stw ( p , v ) stw_raw ( p , v )
# define stl ( p , v ) stl_raw ( p , v )
# define stq ( p , v ) stq_raw ( p , v )
# define stfl ( p , v ) stfl_raw ( p , v )
# define stfq ( p , v ) stfq_raw ( p , v )
# define ldub_code ( p ) ldub_raw ( p )
# define ldsb_code ( p ) ldsb_raw ( p )
# define lduw_code ( p ) lduw_raw ( p )
# define ldsw_code ( p ) ldsw_raw ( p )
# define ldl_code ( p ) ldl_raw ( p )
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# define ldq_code ( p ) ldq_raw ( p )
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# define ldub_kernel ( p ) ldub_raw ( p )
# define ldsb_kernel ( p ) ldsb_raw ( p )
# define lduw_kernel ( p ) lduw_raw ( p )
# define ldsw_kernel ( p ) ldsw_raw ( p )
# define ldl_kernel ( p ) ldl_raw ( p )
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# define ldq_kernel ( p ) ldq_raw ( p )
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# define ldfl_kernel ( p ) ldfl_raw ( p )
# define ldfq_kernel ( p ) ldfq_raw ( p )
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# define stb_kernel ( p , v ) stb_raw ( p , v )
# define stw_kernel ( p , v ) stw_raw ( p , v )
# define stl_kernel ( p , v ) stl_raw ( p , v )
# define stq_kernel ( p , v ) stq_raw ( p , v )
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# define stfl_kernel ( p , v ) stfl_raw ( p , v )
# define stfq_kernel ( p , vt ) stfq_raw ( p , v )
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# endif /* defined(CONFIG_USER_ONLY) */
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/* page related stuff */
# define TARGET_PAGE_SIZE ( 1 << TARGET_PAGE_BITS )
# define TARGET_PAGE_MASK ~ ( TARGET_PAGE_SIZE - 1 )
# define TARGET_PAGE_ALIGN ( addr ) ((( addr ) + TARGET_PAGE_SIZE - 1 ) & TARGET_PAGE_MASK )
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/* ??? These should be the larger of unsigned long and target_ulong. */
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extern unsigned long qemu_real_host_page_size ;
extern unsigned long qemu_host_page_bits ;
extern unsigned long qemu_host_page_size ;
extern unsigned long qemu_host_page_mask ;
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# define HOST_PAGE_ALIGN ( addr ) ((( addr ) + qemu_host_page_size - 1 ) & qemu_host_page_mask )
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/* same as PROT_xxx */
# define PAGE_READ 0x0001
# define PAGE_WRITE 0x0002
# define PAGE_EXEC 0x0004
# define PAGE_BITS ( PAGE_READ | PAGE_WRITE | PAGE_EXEC )
# define PAGE_VALID 0x0008
/* original state of the write flag ( used when tracking self - modifying
code */
# define PAGE_WRITE_ORG 0x0010
void page_dump ( FILE * f );
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int page_get_flags ( target_ulong address );
void page_set_flags ( target_ulong start , target_ulong end , int flags );
void page_unprotect_range ( target_ulong data , target_ulong data_size );
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CPUState * cpu_copy ( CPUState * env );
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void cpu_dump_state ( CPUState * env , FILE * f ,
int ( * cpu_fprintf )( FILE * f , const char * fmt , ...),
int flags );
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void cpu_dump_statistics ( CPUState * env , FILE * f ,
int ( * cpu_fprintf )( FILE * f , const char * fmt , ...),
int flags );
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void cpu_abort ( CPUState * env , const char * fmt , ...)
__attribute__ (( __format__ ( __printf__ , 2 , 3 )));
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extern CPUState * first_cpu ;
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extern CPUState * cpu_single_env ;
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extern int code_copy_enabled ;
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# define CPU_INTERRUPT_EXIT 0x01 /* wants exit from main loop */
# define CPU_INTERRUPT_HARD 0x02 /* hardware interrupt pending */
# define CPU_INTERRUPT_EXITTB 0x04 /* exit the current TB (use for x86 a20 case) */
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# define CPU_INTERRUPT_TIMER 0x08 /* internal timer exception pending */
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# define CPU_INTERRUPT_FIQ 0x10 /* Fast interrupt pending. */
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# define CPU_INTERRUPT_HALT 0x20 /* CPU halt wanted */
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# define CPU_INTERRUPT_SMI 0x40 /* (x86 only) SMI interrupt pending */
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# define CPU_INTERRUPT_DEBUG 0x80 /* Debug event occured. */
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void cpu_interrupt ( CPUState * s , int mask );
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void cpu_reset_interrupt ( CPUState * env , int mask );
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int cpu_watchpoint_insert ( CPUState * env , target_ulong addr );
int cpu_watchpoint_remove ( CPUState * env , target_ulong addr );
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int cpu_breakpoint_insert ( CPUState * env , target_ulong pc );
int cpu_breakpoint_remove ( CPUState * env , target_ulong pc );
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void cpu_single_step ( CPUState * env , int enabled );
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void cpu_reset ( CPUState * s );
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/* Return the physical page corresponding to a virtual one . Use it
only for debugging because no protection checks are done . Return - 1
if no page found . */
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target_phys_addr_t cpu_get_phys_page_debug ( CPUState * env , target_ulong addr );
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# define CPU_LOG_TB_OUT_ASM ( 1 << 0 )
# define CPU_LOG_TB_IN_ASM ( 1 << 1 )
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# define CPU_LOG_TB_OP ( 1 << 2 )
# define CPU_LOG_TB_OP_OPT ( 1 << 3 )
# define CPU_LOG_INT ( 1 << 4 )
# define CPU_LOG_EXEC ( 1 << 5 )
# define CPU_LOG_PCALL ( 1 << 6 )
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# define CPU_LOG_IOPORT ( 1 << 7 )
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# define CPU_LOG_TB_CPU ( 1 << 8 )
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/* define log items */
typedef struct CPULogItem {
int mask ;
const char * name ;
const char * help ;
} CPULogItem ;
extern CPULogItem cpu_log_items [];
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void cpu_set_log ( int log_flags );
void cpu_set_log_filename ( const char * filename );
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int cpu_str_to_log_mask ( const char * str );
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/* IO ports API */
/* NOTE : as these functions may be even used when there is an isa
brige on non x86 targets , we always defined them */
# ifndef NO_CPU_IO_DEFS
void cpu_outb ( CPUState * env , int addr , int val );
void cpu_outw ( CPUState * env , int addr , int val );
void cpu_outl ( CPUState * env , int addr , int val );
int cpu_inb ( CPUState * env , int addr );
int cpu_inw ( CPUState * env , int addr );
int cpu_inl ( CPUState * env , int addr );
# endif
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/* memory API */
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extern int phys_ram_size ;
extern int phys_ram_fd ;
extern uint8_t * phys_ram_base ;
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extern uint8_t * phys_ram_dirty ;
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/* physical memory access */
# define TLB_INVALID_MASK ( 1 << 3 )
# define IO_MEM_SHIFT 4
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# define IO_MEM_NB_ENTRIES ( 1 << ( TARGET_PAGE_BITS - IO_MEM_SHIFT ))
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# define IO_MEM_RAM ( 0 << IO_MEM_SHIFT ) /* hardcoded offset */
# define IO_MEM_ROM ( 1 << IO_MEM_SHIFT ) /* hardcoded offset */
# define IO_MEM_UNASSIGNED ( 2 << IO_MEM_SHIFT )
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# define IO_MEM_NOTDIRTY ( 4 << IO_MEM_SHIFT ) /* used internally, never use directly */
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/* acts like a ROM when read and like a device when written . As an
exception , the write memory callback gets the ram offset instead of
the physical address */
# define IO_MEM_ROMD ( 1 )
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# define IO_MEM_SUBPAGE ( 2 )
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typedef void CPUWriteMemoryFunc ( void * opaque , target_phys_addr_t addr , uint32_t value );
typedef uint32_t CPUReadMemoryFunc ( void * opaque , target_phys_addr_t addr );
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void cpu_register_physical_memory ( target_phys_addr_t start_addr ,
unsigned long size ,
unsigned long phys_offset );
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uint32_t cpu_get_physical_page_desc ( target_phys_addr_t addr );
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ram_addr_t qemu_ram_alloc ( unsigned int size );
void qemu_ram_free ( ram_addr_t addr );
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int cpu_register_io_memory ( int io_index ,
CPUReadMemoryFunc ** mem_read ,
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CPUWriteMemoryFunc ** mem_write ,
void * opaque );
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CPUWriteMemoryFunc ** cpu_get_io_memory_write ( int io_index );
CPUReadMemoryFunc ** cpu_get_io_memory_read ( int io_index );
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void cpu_physical_memory_rw ( target_phys_addr_t addr , uint8_t * buf ,
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int len , int is_write );
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static inline void cpu_physical_memory_read ( target_phys_addr_t addr ,
uint8_t * buf , int len )
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{
cpu_physical_memory_rw ( addr , buf , len , 0 );
}
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static inline void cpu_physical_memory_write ( target_phys_addr_t addr ,
const uint8_t * buf , int len )
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{
cpu_physical_memory_rw ( addr , ( uint8_t * ) buf , len , 1 );
}
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uint32_t ldub_phys ( target_phys_addr_t addr );
uint32_t lduw_phys ( target_phys_addr_t addr );
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uint32_t ldl_phys ( target_phys_addr_t addr );
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uint64_t ldq_phys ( target_phys_addr_t addr );
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void stl_phys_notdirty ( target_phys_addr_t addr , uint32_t val );
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void stq_phys_notdirty ( target_phys_addr_t addr , uint64_t val );
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void stb_phys ( target_phys_addr_t addr , uint32_t val );
void stw_phys ( target_phys_addr_t addr , uint32_t val );
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void stl_phys ( target_phys_addr_t addr , uint32_t val );
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void stq_phys ( target_phys_addr_t addr , uint64_t val );
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void cpu_physical_memory_write_rom ( target_phys_addr_t addr ,
const uint8_t * buf , int len );
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int cpu_memory_rw_debug ( CPUState * env , target_ulong addr ,
uint8_t * buf , int len , int is_write );
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# define VGA_DIRTY_FLAG 0x01
# define CODE_DIRTY_FLAG 0x02
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/* read dirty bit (return 0 or 1) */
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static inline int cpu_physical_memory_is_dirty ( ram_addr_t addr )
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{
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return phys_ram_dirty [ addr >> TARGET_PAGE_BITS ] == 0xff ;
}
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static inline int cpu_physical_memory_get_dirty ( ram_addr_t addr ,
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int dirty_flags )
{
return phys_ram_dirty [ addr >> TARGET_PAGE_BITS ] & dirty_flags ;
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}
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static inline void cpu_physical_memory_set_dirty ( ram_addr_t addr )
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{
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phys_ram_dirty [ addr >> TARGET_PAGE_BITS ] = 0xff ;
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}
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void cpu_physical_memory_reset_dirty ( ram_addr_t start , ram_addr_t end ,
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int dirty_flags );
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void cpu_tlb_update_dirty ( CPUState * env );
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void dump_exec_info ( FILE * f ,
int ( * cpu_fprintf )( FILE * f , const char * fmt , ...));
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/*******************************************/
/* host CPU ticks (if available) */
# if defined ( __powerpc__ )
static inline uint32_t get_tbl ( void )
{
uint32_t tbl ;
asm volatile ( "mftb %0" : "=r" ( tbl ));
return tbl ;
}
static inline uint32_t get_tbu ( void )
{
uint32_t tbl ;
asm volatile ( "mftbu %0" : "=r" ( tbl ));
return tbl ;
}
static inline int64_t cpu_get_real_ticks ( void )
{
uint32_t l , h , h1 ;
/* NOTE: we test if wrapping has occurred */
do {
h = get_tbu ();
l = get_tbl ();
h1 = get_tbu ();
} while ( h != h1 );
return (( int64_t ) h << 32 ) | l ;
}
# elif defined ( __i386__ )
static inline int64_t cpu_get_real_ticks ( void )
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{
int64_t val ;
asm volatile ( "rdtsc" : "=A" ( val ));
return val ;
}
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# elif defined ( __x86_64__ )
static inline int64_t cpu_get_real_ticks ( void )
{
uint32_t low , high ;
int64_t val ;
asm volatile ( "rdtsc" : "=a" ( low ), "=d" ( high ));
val = high ;
val <<= 32 ;
val |= low ;
return val ;
}
# elif defined ( __ia64 )
static inline int64_t cpu_get_real_ticks ( void )
{
int64_t val ;
asm volatile ( "mov %0 = ar.itc" : "=r" ( val ) :: "memory" );
return val ;
}
# elif defined ( __s390__ )
static inline int64_t cpu_get_real_ticks ( void )
{
int64_t val ;
asm volatile ( "stck 0(%1)" : "=m" ( val ) : "a" ( & val ) : "cc" );
return val ;
}
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# elif defined ( __sparc_v8plus__ ) || defined ( __sparc_v8plusa__ ) || defined ( __sparc_v9__ )
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static inline int64_t cpu_get_real_ticks ( void )
{
# if defined ( _LP64 )
uint64_t rval ;
asm volatile ( "rd %%tick,%0" : "=r" ( rval ));
return rval ;
# else
union {
uint64_t i64 ;
struct {
uint32_t high ;
uint32_t low ;
} i32 ;
} rval ;
asm volatile ( "rd %%tick,%1; srlx %1,32,%0"
: "=r" ( rval . i32 . high ), "=r" ( rval . i32 . low ));
return rval . i64 ;
# endif
}
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18 years ago
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# elif defined ( __mips__ )
static inline int64_t cpu_get_real_ticks ( void )
{
# if __mips_isa_rev >= 2
uint32_t count ;
static uint32_t cyc_per_count = 0 ;
if ( ! cyc_per_count )
__asm__ __volatile__ ( "rdhwr %0, $3" : "=r" ( cyc_per_count ));
__asm__ __volatile__ ( "rdhwr %1, $2" : "=r" ( count ));
return ( int64_t )( count * cyc_per_count );
# else
/* FIXME */
static int64_t ticks = 0 ;
return ticks ++ ;
# endif
}
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# else
/* The host CPU doesn ' t have an easily accessible cycle counter .
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Just return a monotonically increasing value . This will be
totally wrong , but hopefully better than nothing . */
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static inline int64_t cpu_get_real_ticks ( void )
{
static int64_t ticks = 0 ;
return ticks ++ ;
}
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# endif
/* profiling */
# ifdef CONFIG_PROFILER
static inline int64_t profile_getclock ( void )
{
return cpu_get_real_ticks ();
}
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extern int64_t kqemu_time , kqemu_time_start ;
extern int64_t qemu_time , qemu_time_start ;
extern int64_t tlb_flush_time ;
extern int64_t kqemu_exec_count ;
extern int64_t dev_time ;
extern int64_t kqemu_ret_int_count ;
extern int64_t kqemu_ret_excp_count ;
extern int64_t kqemu_ret_intr_count ;
# endif
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# endif /* CPU_ALL_H */