| 9 |
|
#ifndef UAE_MEMORY_H |
| 10 |
|
#define UAE_MEMORY_H |
| 11 |
|
|
| 12 |
+ |
#if !DIRECT_ADDRESSING && !REAL_ADDRESSING |
| 13 |
+ |
|
| 14 |
|
/* Enabling this adds one additional native memory reference per 68k memory |
| 15 |
|
* access, but saves one shift (on the x86). Enabling this is probably |
| 16 |
|
* better for the cache. My favourite benchmark (PP2) doesn't show a |
| 23 |
|
typedef uae_u32 (REGPARAM2 *mem_get_func)(uaecptr) REGPARAM; |
| 24 |
|
typedef void (REGPARAM2 *mem_put_func)(uaecptr, uae_u32) REGPARAM; |
| 25 |
|
typedef uae_u8 *(REGPARAM2 *xlate_func)(uaecptr) REGPARAM; |
| 24 |
– |
typedef int (REGPARAM2 *check_func)(uaecptr, uae_u32) REGPARAM; |
| 26 |
|
|
| 27 |
|
#undef DIRECT_MEMFUNCS_SUCCESSFUL |
| 28 |
|
|
| 43 |
|
* This doesn't work for all memory banks, so this function may call |
| 44 |
|
* abort(). */ |
| 45 |
|
xlate_func xlateaddr; |
| 45 |
– |
/* To prevent calls to abort(), use check before calling xlateaddr. |
| 46 |
– |
* It checks not only that the memory bank can do xlateaddr, but also |
| 47 |
– |
* that the pointer points to an area of at least the specified size. |
| 48 |
– |
* This is used for example to translate bitplane pointers in custom.c */ |
| 49 |
– |
check_func check; |
| 46 |
|
} addrbank; |
| 47 |
|
|
| 48 |
|
extern uae_u8 filesysory[65536]; |
| 53 |
|
|
| 54 |
|
/* Default memory access functions */ |
| 55 |
|
|
| 60 |
– |
extern int REGPARAM2 default_check(uaecptr addr, uae_u32 size) REGPARAM; |
| 56 |
|
extern uae_u8 *REGPARAM2 default_xlate(uaecptr addr) REGPARAM; |
| 57 |
|
|
| 58 |
|
#define bankindex(addr) (((uaecptr)(addr)) >> 16) |
| 81 |
|
|
| 82 |
|
#else |
| 83 |
|
|
| 89 |
– |
extern uae_u32 alongget(uaecptr addr); |
| 90 |
– |
extern uae_u32 awordget(uaecptr addr); |
| 84 |
|
extern uae_u32 longget(uaecptr addr); |
| 85 |
|
extern uae_u32 wordget(uaecptr addr); |
| 86 |
|
extern uae_u32 byteget(uaecptr addr); |
| 101 |
|
|
| 102 |
|
#endif |
| 103 |
|
|
| 104 |
+ |
#endif /* !DIRECT_ADDRESSING && !REAL_ADDRESSING */ |
| 105 |
+ |
|
| 106 |
|
#if REAL_ADDRESSING |
| 107 |
+ |
const uintptr MEMBaseDiff = 0; |
| 108 |
+ |
#endif |
| 109 |
+ |
#if DIRECT_ADDRESSING |
| 110 |
+ |
extern uintptr MEMBaseDiff; |
| 111 |
+ |
#endif |
| 112 |
+ |
|
| 113 |
+ |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
| 114 |
+ |
static __inline__ uae_u8 *do_get_real_address(uaecptr addr) |
| 115 |
+ |
{ |
| 116 |
+ |
return (uae_u8 *)MEMBaseDiff + addr; |
| 117 |
+ |
} |
| 118 |
+ |
static __inline__ uae_u32 do_get_virtual_address(uae_u8 *addr) |
| 119 |
+ |
{ |
| 120 |
+ |
return (uintptr)addr - MEMBaseDiff; |
| 121 |
+ |
} |
| 122 |
|
static __inline__ uae_u32 get_long(uaecptr addr) |
| 123 |
|
{ |
| 124 |
< |
return ntohl(*(uae_u32 *)addr); |
| 124 |
> |
uae_u32 * const m = (uae_u32 *)do_get_real_address(addr); |
| 125 |
> |
return do_get_mem_long(m); |
| 126 |
|
} |
| 127 |
|
static __inline__ uae_u32 get_word(uaecptr addr) |
| 128 |
|
{ |
| 129 |
< |
return ntohs(*(uae_u16 *)addr); |
| 129 |
> |
uae_u16 * const m = (uae_u16 *)do_get_real_address(addr); |
| 130 |
> |
return do_get_mem_word(m); |
| 131 |
|
} |
| 132 |
|
static __inline__ uae_u32 get_byte(uaecptr addr) |
| 133 |
|
{ |
| 134 |
< |
return *(uae_u8 *)addr; |
| 134 |
> |
uae_u8 * const m = (uae_u8 *)do_get_real_address(addr); |
| 135 |
> |
return do_get_mem_byte(m); |
| 136 |
|
} |
| 137 |
|
static __inline__ void put_long(uaecptr addr, uae_u32 l) |
| 138 |
|
{ |
| 139 |
< |
*(uae_u32 *)addr = htonl(l); |
| 139 |
> |
uae_u32 * const m = (uae_u32 *)do_get_real_address(addr); |
| 140 |
> |
do_put_mem_long(m, l); |
| 141 |
|
} |
| 142 |
|
static __inline__ void put_word(uaecptr addr, uae_u32 w) |
| 143 |
|
{ |
| 144 |
< |
*(uae_u16 *)addr = htons(w); |
| 144 |
> |
uae_u16 * const m = (uae_u16 *)do_get_real_address(addr); |
| 145 |
> |
do_put_mem_word(m, w); |
| 146 |
|
} |
| 147 |
|
static __inline__ void put_byte(uaecptr addr, uae_u32 b) |
| 148 |
|
{ |
| 149 |
< |
*(uae_u8 *)addr = b; |
| 149 |
> |
uae_u8 * const m = (uae_u8 *)do_get_real_address(addr); |
| 150 |
> |
do_put_mem_byte(m, b); |
| 151 |
|
} |
| 152 |
|
static __inline__ uae_u8 *get_real_address(uaecptr addr) |
| 153 |
|
{ |
| 154 |
< |
return (uae_u8 *)addr; |
| 154 |
> |
return do_get_real_address(addr); |
| 155 |
|
} |
| 156 |
< |
static __inline__ int valid_address(uaecptr addr, uae_u32 size) |
| 156 |
> |
static __inline__ uae_u32 get_virtual_address(uae_u8 *addr) |
| 157 |
|
{ |
| 158 |
< |
return 1; |
| 158 |
> |
return do_get_virtual_address(addr); |
| 159 |
|
} |
| 160 |
|
#else |
| 161 |
|
static __inline__ uae_u32 get_long(uaecptr addr) |
| 182 |
|
{ |
| 183 |
|
byteput_1(addr, b); |
| 184 |
|
} |
| 169 |
– |
|
| 185 |
|
static __inline__ uae_u8 *get_real_address(uaecptr addr) |
| 186 |
|
{ |
| 187 |
|
return get_mem_bank(addr).xlateaddr(addr); |
| 188 |
|
} |
| 189 |
+ |
/* gb-- deliberately not implemented since it shall not be used... */ |
| 190 |
+ |
extern uae_u32 get_virtual_address(uae_u8 *addr); |
| 191 |
+ |
#endif /* DIRECT_ADDRESSING || REAL_ADDRESSING */ |
| 192 |
|
|
| 193 |
< |
static __inline__ int valid_address(uaecptr addr, uae_u32 size) |
| 176 |
< |
{ |
| 177 |
< |
return get_mem_bank(addr).check(addr, size); |
| 178 |
< |
} |
| 179 |
< |
#endif |
| 193 |
> |
#endif /* MEMORY_H */ |
| 194 |
|
|
| 181 |
– |
#endif |
