| 68 |
|
|
| 69 |
|
// Always use Real Addressing mode on native architectures |
| 70 |
|
// Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set |
| 71 |
< |
#if NATMEM_OFFSET == 0 || EMULATED_PPC == 0 |
| 71 |
> |
#if !defined(EMULATED_PPC) |
| 72 |
|
#define REAL_ADDRESSING 1 |
| 73 |
< |
#else |
| 73 |
> |
#elif defined(__CYGWIN__) |
| 74 |
> |
#define DIRECT_ADDRESSING 1 |
| 75 |
> |
#define DIRECT_ADDRESSING_HACK 1 |
| 76 |
> |
/* |
| 77 |
> |
The following address translation functions were empirically |
| 78 |
> |
determined on a Windows XP system running Cygwin 1.5.12-1 so |
| 79 |
> |
that RAM size can be maximized (up to 960 MB) and avoiding |
| 80 |
> |
the use of a TLB. This also takes into account reduced address |
| 81 |
> |
space available when the Cygwin runtime is used. |
| 82 |
> |
*/ |
| 83 |
> |
#define DIRECT_ADDRESSING_VIRT2PHYS(ADDR) \ |
| 84 |
> |
((ADDR) + (((ADDR) < 0x41000000) ? 0x39000000 : 0xcf800000)) |
| 85 |
> |
#define DIRECT_ADDRESSING_PHYS2VIRT(ADDR) \ |
| 86 |
> |
((ADDR) - (((ADDR) >= 0x39000000) ? 0x39000000 : 0xcf800000)) |
| 87 |
> |
#elif defined(NATMEM_OFFSET) |
| 88 |
|
#define DIRECT_ADDRESSING 1 |
| 89 |
+ |
#else |
| 90 |
+ |
#define REAL_ADDRESSING 1 |
| 91 |
|
#endif |
| 92 |
|
|
| 93 |
|
#define POWERPC_ROM 1 |
