| 127 |
|
// Constructor |
| 128 |
|
sheepshaver_cpu(); |
| 129 |
|
|
| 130 |
< |
// Condition Register accessors |
| 130 |
> |
// CR & XER accessors |
| 131 |
|
uint32 get_cr() const { return cr().get(); } |
| 132 |
|
void set_cr(uint32 v) { cr().set(v); } |
| 133 |
+ |
uint32 get_xer() const { return xer().get(); } |
| 134 |
+ |
void set_xer(uint32 v) { xer().set(v); } |
| 135 |
|
|
| 136 |
|
// Execute 68k routine |
| 137 |
|
void execute_68k(uint32 entry, M68kRegisters *r); |
| 243 |
|
for (int i = 0; i < 7; i++) |
| 244 |
|
r68.a[i] = gpr(16 + i); |
| 245 |
|
r68.a[7] = gpr(1); |
| 246 |
+ |
uint32 saved_cr = get_cr() & CR_field<2>::mask(); |
| 247 |
+ |
uint32 saved_xer = get_xer(); |
| 248 |
|
EmulOp(&r68, gpr(24), EMUL_OP_field::extract(opcode) - 3); |
| 249 |
+ |
set_cr(saved_cr); |
| 250 |
+ |
set_xer(saved_xer); |
| 251 |
|
for (int i = 0; i < 8; i++) |
| 252 |
|
gpr(8 + i) = r68.d[i]; |
| 253 |
|
for (int i = 0; i < 7; i++) |
| 629 |
|
// Initialize main CPU emulator |
| 630 |
|
main_cpu = new sheepshaver_cpu(); |
| 631 |
|
main_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000)); |
| 632 |
+ |
main_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000)); |
| 633 |
|
WriteMacInt32(XLM_RUN_MODE, MODE_68K); |
| 634 |
|
|
| 635 |
|
#if MULTICORE_CPU |
| 694 |
|
void emul_ppc(uint32 entry) |
| 695 |
|
{ |
| 696 |
|
current_cpu = main_cpu; |
| 697 |
< |
#if DEBUG |
| 697 |
> |
#if 0 |
| 698 |
|
current_cpu->start_log(); |
| 699 |
|
#endif |
| 700 |
|
// start emulation loop and enable code translation or caching |
