| 27 |
|
*/ |
| 28 |
|
|
| 29 |
|
// Constants |
| 30 |
< |
const uint32 ROM_BASE = 0x40800000; // Base address of ROM |
| 31 |
< |
const uint32 ROM_SIZE = 0x00400000; // Size of ROM file |
| 32 |
< |
const uint32 ROM_AREA_SIZE = 0x500000; // Size of ROM area |
| 33 |
< |
const uint32 ROM_END = ROM_BASE + ROM_SIZE; // End of ROM |
| 34 |
< |
const uint32 DR_CACHE_BASE = 0x69000000; // Address of DR cache |
| 35 |
< |
const uint32 DR_CACHE_SIZE = 0x80000; // Size of DR Cache |
| 36 |
< |
const uint32 SHEEP_BASE = 0x60000000; // Address of SheepShaver data |
| 37 |
< |
const uint32 SHEEP_SIZE = 0x40000; // Size of SheepShaver data |
| 38 |
< |
|
| 39 |
< |
const uint32 KERNEL_DATA_BASE = 0x68ffe000; // Address of Kernel Data |
| 40 |
< |
const uint32 KERNEL_DATA2_BASE = 0x5fffe000;// Alternate address of Kernel Data |
| 41 |
< |
const uint32 KERNEL_AREA_SIZE = 0x2000; // Size of Kernel Data area |
| 30 |
> |
const uintptr ROM_BASE = 0x40800000; // Base address of ROM |
| 31 |
> |
const uint32 ROM_SIZE = 0x400000; // Size of ROM file |
| 32 |
> |
const uint32 ROM_AREA_SIZE = 0x500000; // Size of ROM area |
| 33 |
> |
const uintptr ROM_END = ROM_BASE + ROM_SIZE; // End of ROM |
| 34 |
> |
const uintptr DR_CACHE_BASE = 0x69000000; // Address of DR cache |
| 35 |
> |
const uint32 DR_CACHE_SIZE = 0x80000; // Size of DR Cache |
| 36 |
> |
|
| 37 |
> |
const uintptr KERNEL_DATA_BASE = 0x68ffe000; // Address of Kernel Data |
| 38 |
> |
const uintptr KERNEL_DATA2_BASE = 0x5fffe000; // Alternate address of Kernel Data |
| 39 |
> |
const uint32 KERNEL_AREA_SIZE = 0x2000; // Size of Kernel Data area |
| 40 |
|
|
| 41 |
|
// MacOS 68k Emulator Data |
| 42 |
|
struct EmulatorData { |
| 52 |
|
// RAM and ROM pointers (allocated and set by main_*.cpp) |
| 53 |
|
extern uint32 RAMBase; // Base address of Mac RAM |
| 54 |
|
extern uint32 RAMSize; // Size address of Mac RAM |
| 57 |
– |
extern uint32 SheepStack1Base; // SheepShaver first alternate stack base |
| 58 |
– |
extern uint32 SheepStack2Base; // SheepShaver second alternate stack base |
| 59 |
– |
extern uint32 SheepThunksBase; // SheepShaver thunks base |
| 55 |
|
|
| 56 |
|
// Mac memory access functions |
| 57 |
|
#if EMULATED_PPC |
| 90 |
|
* 680x0 and PPC emulation |
| 91 |
|
*/ |
| 92 |
|
|
| 93 |
+ |
// 68k procedure helper to write a big endian 16-bit word |
| 94 |
+ |
#ifdef WORDS_BIGENDIAN |
| 95 |
+ |
#define PW(W) W |
| 96 |
+ |
#else |
| 97 |
+ |
#define PW(X) ((((X) >> 8) & 0xff) | (((X) & 0xff) << 8)) |
| 98 |
+ |
#endif |
| 99 |
+ |
|
| 100 |
|
struct M68kRegisters; |
| 101 |
|
extern void Execute68k(uint32, M68kRegisters *r); // Execute 68k subroutine from EMUL_OP routine, must be ended with RTS |
| 102 |
|
extern void Execute68kTrap(uint16 trap, M68kRegisters *r); // Execute 68k A-Trap from EMUL_OP routine |
| 103 |
|
#if EMULATED_PPC |
| 104 |
|
extern void FlushCodeCache(uintptr start, uintptr end); // Invalidate emulator caches |
| 103 |
– |
extern void ExecuteNative(int selector); // Execute native code from EMUL_OP routine (real mode switch) |
| 104 |
– |
#else |
| 105 |
– |
extern void ExecutePPC(void (*func)(void)); // Execute PPC code from EMUL_OP routine (real mode switch) |
| 105 |
|
#endif |
| 106 |
+ |
extern void ExecuteNative(int selector); // Execute native code from EMUL_OP routine (real mode switch) |
| 107 |
|
|
| 108 |
|
#endif |
