76 |
|
// From main_*.cpp |
77 |
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extern uintptr SignalStackBase(); |
78 |
|
|
79 |
+ |
// From rsrc_patches.cpp |
80 |
+ |
extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h); |
81 |
+ |
|
82 |
|
// PowerPC EmulOp to exit from emulation looop |
83 |
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const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP | 1; |
84 |
|
|
136 |
|
uint32 get_xer() const { return xer().get(); } |
137 |
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void set_xer(uint32 v) { xer().set(v); } |
138 |
|
|
139 |
+ |
// Execute EMUL_OP routine |
140 |
+ |
void execute_emul_op(uint32 emul_op); |
141 |
+ |
|
142 |
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// Execute 68k routine |
143 |
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void execute_68k(uint32 entry, M68kRegisters *r); |
144 |
|
|
148 |
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// Execute MacOS/PPC code |
149 |
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uint32 execute_macos_code(uint32 tvect, int nargs, uint32 const *args); |
150 |
|
|
151 |
+ |
// Compile one instruction |
152 |
+ |
virtual bool compile1(codegen_context_t & cg_context); |
153 |
+ |
|
154 |
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// Resource manager thunk |
155 |
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void get_resource(uint32 old_get_resource); |
156 |
|
|
220 |
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typedef bit_field< 21, 25 > NATIVE_OP_field; |
221 |
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typedef bit_field< 26, 31 > EMUL_OP_field; |
222 |
|
|
223 |
+ |
// Execute EMUL_OP routine |
224 |
+ |
void sheepshaver_cpu::execute_emul_op(uint32 emul_op) |
225 |
+ |
{ |
226 |
+ |
M68kRegisters r68; |
227 |
+ |
WriteMacInt32(XLM_68K_R25, gpr(25)); |
228 |
+ |
WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP); |
229 |
+ |
for (int i = 0; i < 8; i++) |
230 |
+ |
r68.d[i] = gpr(8 + i); |
231 |
+ |
for (int i = 0; i < 7; i++) |
232 |
+ |
r68.a[i] = gpr(16 + i); |
233 |
+ |
r68.a[7] = gpr(1); |
234 |
+ |
uint32 saved_cr = get_cr() & CR_field<2>::mask(); |
235 |
+ |
uint32 saved_xer = get_xer(); |
236 |
+ |
EmulOp(&r68, gpr(24), emul_op); |
237 |
+ |
set_cr(saved_cr); |
238 |
+ |
set_xer(saved_xer); |
239 |
+ |
for (int i = 0; i < 8; i++) |
240 |
+ |
gpr(8 + i) = r68.d[i]; |
241 |
+ |
for (int i = 0; i < 7; i++) |
242 |
+ |
gpr(16 + i) = r68.a[i]; |
243 |
+ |
gpr(1) = r68.a[7]; |
244 |
+ |
WriteMacInt32(XLM_RUN_MODE, MODE_68K); |
245 |
+ |
} |
246 |
+ |
|
247 |
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// Execute SheepShaver instruction |
248 |
|
void sheepshaver_cpu::execute_sheep(uint32 opcode) |
249 |
|
{ |
267 |
|
pc() += 4; |
268 |
|
break; |
269 |
|
|
270 |
< |
default: { // EMUL_OP |
271 |
< |
M68kRegisters r68; |
239 |
< |
WriteMacInt32(XLM_68K_R25, gpr(25)); |
240 |
< |
WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP); |
241 |
< |
for (int i = 0; i < 8; i++) |
242 |
< |
r68.d[i] = gpr(8 + i); |
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++) |
254 |
< |
gpr(16 + i) = r68.a[i]; |
255 |
< |
gpr(1) = r68.a[7]; |
256 |
< |
WriteMacInt32(XLM_RUN_MODE, MODE_68K); |
270 |
> |
default: // EMUL_OP |
271 |
> |
execute_emul_op(EMUL_OP_field::extract(opcode) - 3); |
272 |
|
pc() += 4; |
273 |
|
break; |
274 |
|
} |
275 |
+ |
} |
276 |
+ |
|
277 |
+ |
// Compile one instruction |
278 |
+ |
bool sheepshaver_cpu::compile1(codegen_context_t & cg_context) |
279 |
+ |
{ |
280 |
+ |
#if PPC_ENABLE_JIT |
281 |
+ |
const instr_info_t *ii = cg_context.instr_info; |
282 |
+ |
if (ii->mnemo != PPC_I(SHEEP)) |
283 |
+ |
return false; |
284 |
+ |
|
285 |
+ |
bool compiled = false; |
286 |
+ |
powerpc_dyngen & dg = cg_context.codegen; |
287 |
+ |
uint32 opcode = cg_context.opcode; |
288 |
+ |
|
289 |
+ |
switch (opcode & 0x3f) { |
290 |
+ |
case 0: // EMUL_RETURN |
291 |
+ |
dg.gen_invoke(QuitEmulator); |
292 |
+ |
compiled = true; |
293 |
+ |
break; |
294 |
+ |
|
295 |
+ |
case 1: // EXEC_RETURN |
296 |
+ |
dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN); |
297 |
+ |
compiled = true; |
298 |
+ |
break; |
299 |
+ |
|
300 |
+ |
case 2: { // EXEC_NATIVE |
301 |
+ |
uint32 selector = NATIVE_OP_field::extract(opcode); |
302 |
+ |
switch (selector) { |
303 |
+ |
case NATIVE_PATCH_NAME_REGISTRY: |
304 |
+ |
dg.gen_invoke(DoPatchNameRegistry); |
305 |
+ |
compiled = true; |
306 |
+ |
break; |
307 |
+ |
case NATIVE_VIDEO_INSTALL_ACCEL: |
308 |
+ |
dg.gen_invoke(VideoInstallAccel); |
309 |
+ |
compiled = true; |
310 |
+ |
break; |
311 |
+ |
case NATIVE_VIDEO_VBL: |
312 |
+ |
dg.gen_invoke(VideoVBL); |
313 |
+ |
compiled = true; |
314 |
+ |
break; |
315 |
+ |
case NATIVE_GET_RESOURCE: |
316 |
+ |
case NATIVE_GET_1_RESOURCE: |
317 |
+ |
case NATIVE_GET_IND_RESOURCE: |
318 |
+ |
case NATIVE_GET_1_IND_RESOURCE: |
319 |
+ |
case NATIVE_R_GET_RESOURCE: { |
320 |
+ |
static const uint32 get_resource_ptr[] = { |
321 |
+ |
XLM_GET_RESOURCE, |
322 |
+ |
XLM_GET_1_RESOURCE, |
323 |
+ |
XLM_GET_IND_RESOURCE, |
324 |
+ |
XLM_GET_1_IND_RESOURCE, |
325 |
+ |
XLM_R_GET_RESOURCE |
326 |
+ |
}; |
327 |
+ |
uint32 old_get_resource = ReadMacInt32(get_resource_ptr[selector - NATIVE_GET_RESOURCE]); |
328 |
+ |
typedef void (*func_t)(dyngen_cpu_base, uint32); |
329 |
+ |
func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::get_resource).ptr(); |
330 |
+ |
dg.gen_invoke_CPU_im(func, old_get_resource); |
331 |
+ |
compiled = true; |
332 |
+ |
break; |
333 |
+ |
} |
334 |
+ |
case NATIVE_DISABLE_INTERRUPT: |
335 |
+ |
dg.gen_invoke(DisableInterrupt); |
336 |
+ |
compiled = true; |
337 |
+ |
break; |
338 |
+ |
case NATIVE_ENABLE_INTERRUPT: |
339 |
+ |
dg.gen_invoke(EnableInterrupt); |
340 |
+ |
compiled = true; |
341 |
+ |
break; |
342 |
+ |
case NATIVE_CHECK_LOAD_INVOC: |
343 |
+ |
dg.gen_load_T0_GPR(3); |
344 |
+ |
dg.gen_load_T1_GPR(4); |
345 |
+ |
dg.gen_se_16_32_T1(); |
346 |
+ |
dg.gen_load_T2_GPR(5); |
347 |
+ |
dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc); |
348 |
+ |
compiled = true; |
349 |
+ |
break; |
350 |
+ |
} |
351 |
+ |
if (FN_field::test(opcode)) { |
352 |
+ |
if (compiled) { |
353 |
+ |
dg.gen_load_A0_LR(); |
354 |
+ |
dg.gen_set_PC_A0(); |
355 |
+ |
} |
356 |
+ |
cg_context.done_compile = true; |
357 |
+ |
} |
358 |
+ |
else |
359 |
+ |
cg_context.done_compile = false; |
360 |
+ |
break; |
361 |
|
} |
362 |
+ |
|
363 |
+ |
default: { // EMUL_OP |
364 |
+ |
typedef void (*func_t)(dyngen_cpu_base, uint32); |
365 |
+ |
func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr(); |
366 |
+ |
dg.gen_invoke_CPU_im(func, EMUL_OP_field::extract(opcode) - 3); |
367 |
+ |
cg_context.done_compile = false; |
368 |
+ |
compiled = true; |
369 |
+ |
break; |
370 |
+ |
} |
371 |
+ |
} |
372 |
+ |
return compiled; |
373 |
+ |
#endif |
374 |
+ |
return false; |
375 |
|
} |
376 |
|
|
377 |
|
// Handle MacOS interrupt |
607 |
|
} |
608 |
|
|
609 |
|
// Resource Manager thunk |
496 |
– |
extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h); |
497 |
– |
|
610 |
|
inline void sheepshaver_cpu::get_resource(uint32 old_get_resource) |
611 |
|
{ |
612 |
|
uint32 type = gpr(3); |
1017 |
|
case NATIVE_MAKE_EXECUTABLE: |
1018 |
|
MakeExecutable(0, (void *)GPR(4), GPR(5)); |
1019 |
|
break; |
1020 |
+ |
case NATIVE_CHECK_LOAD_INVOC: |
1021 |
+ |
check_load_invoc(GPR(3), GPR(4), GPR(5)); |
1022 |
+ |
break; |
1023 |
|
default: |
1024 |
|
printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector); |
1025 |
|
QuitEmulator(); |