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root/cebix/SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.10 by gbeauche, 2003-10-26T13:59:03Z vs.
Revision 1.58 by gbeauche, 2005-03-05T15:25:10Z

#	Line 1 | Line 1
1		/*
2		*  sheepshaver_glue.cpp - Glue Kheperix CPU to SheepShaver CPU engine interface
3		*
4	<	*  SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
4	>	*  SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 28 | Line 28
28		#include "macos_util.h"
29		#include "block-alloc.hpp"
30		#include "sigsegv.h"
31	–	#include "spcflags.h"
31		#include "cpu/ppc/ppc-cpu.hpp"
32		#include "cpu/ppc/ppc-operations.hpp"
33	+	#include "cpu/ppc/ppc-instructions.hpp"
34	+	#include "thunks.h"
35
36		// Used for NativeOp trampolines
37		#include "video.h"
38		#include "name_registry.h"
39		#include "serial.h"
40	+	#include "ether.h"
41	+	#include "timer.h"
42
43		#include <stdio.h>
44	+	#include <stdlib.h>
45	+	#ifdef HAVE_MALLOC_H
46	+	#include <malloc.h>
47	+	#endif
48	+
49	+	#ifdef USE_SDL_VIDEO
50	+	#include <SDL_events.h>
51	+	#endif
52
53		#if ENABLE_MON
54		#include "mon.h"
#	Line 47 | Line 58
58		#define DEBUG 0
59		#include "debug.h"
60
61	+	// Emulation time statistics
62	+	#ifndef EMUL_TIME_STATS
63	+	#define EMUL_TIME_STATS 0
64	+	#endif
65	+
66	+	#if EMUL_TIME_STATS
67	+	static clock_t emul_start_time;
68	+	static uint32 interrupt_count = 0, ppc_interrupt_count = 0;
69	+	static clock_t interrupt_time = 0;
70	+	static uint32 exec68k_count = 0;
71	+	static clock_t exec68k_time = 0;
72	+	static uint32 native_exec_count = 0;
73	+	static clock_t native_exec_time = 0;
74	+	static uint32 macos_exec_count = 0;
75	+	static clock_t macos_exec_time = 0;
76	+	#endif
77	+
78		static void enter_mon(void)
79		{
80		// Start up mon in real-mode
#	Line 56 | Line 84 | static void enter_mon(void)
84		#endif
85		}
86
87	<	// Enable multicore (main/interrupts) cpu emulation?
88	<	#define MULTICORE_CPU (ASYNC_IRQ ? 1 : 0)
87	>	// From main_*.cpp
88	>	extern uintptr SignalStackBase();
89	>
90	>	// From rsrc_patches.cpp
91	>	extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h);
92	>
93	>	// PowerPC EmulOp to exit from emulation looop
94	>	const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP | 1;
95
96		// Enable Execute68k() safety checks?
97		#define SAFE_EXEC_68K 1
#	Line 72 | Line 106 | static void enter_mon(void)
106		#define INTERRUPTS_IN_NATIVE_MODE 1
107
108		// Pointer to Kernel Data
109	<	static KernelData * const kernel_data = (KernelData *)KERNEL_DATA_BASE;
109	>	static KernelData * kernel_data;
110	>
111	>	// SIGSEGV handler
112	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
113	>
114	>	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
115	>	// Special trampolines for EmulOp and NativeOp
116	>	static uint8 *emul_op_trampoline;
117	>	static uint8 *native_op_trampoline;
118	>	#endif
119	>
120	>	// JIT Compiler enabled?
121	>	static inline bool enable_jit_p()
122	>	{
123	>	return PrefsFindBool("jit");
124	>	}
125
126
127		/**
128		*              PowerPC emulator glue with special 'sheep' opcodes
129		**/
130
131	<	struct sheepshaver_exec_return { };
131	>	enum {
132	>	PPC_I(SHEEP) = PPC_I(MAX),
133	>	PPC_I(SHEEP_MAX)
134	>	};
135
136		class sheepshaver_cpu
137		: public powerpc_cpu
#	Line 92 | Line 144 | public:
144		// Constructor
145		sheepshaver_cpu();
146
147	<	// Condition Register accessors
147	>	// CR & XER accessors
148		uint32 get_cr() const           { return cr().get(); }
149		void set_cr(uint32 v)           { cr().set(v); }
150	+	uint32 get_xer() const          { return xer().get(); }
151	+	void set_xer(uint32 v)          { xer().set(v); }
152	+
153	+	// Execute NATIVE_OP routine
154	+	void execute_native_op(uint32 native_op);
155
156	<	// Execution loop
157	<	void execute(uint32 entry, bool enable_cache = false);
156	>	// Execute EMUL_OP routine
157	>	void execute_emul_op(uint32 emul_op);
158
159		// Execute 68k routine
160		void execute_68k(uint32 entry, M68kRegisters *r);
#	Line 108 | Line 165 | public:
165		// Execute MacOS/PPC code
166		uint32 execute_macos_code(uint32 tvect, int nargs, uint32 const *args);
167
168	+	#if PPC_ENABLE_JIT
169	+	// Compile one instruction
170	+	virtual int compile1(codegen_context_t & cg_context);
171	+	#endif
172		// Resource manager thunk
173		void get_resource(uint32 old_get_resource);
174
175		// Handle MacOS interrupt
176		void interrupt(uint32 entry);
116	–	void handle_interrupt();
177
178	<	// spcflags for interrupts handling
179	<	static uint32 spcflags;
178	>	// Make sure the SIGSEGV handler can access CPU registers
179	>	friend sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
180
181	<	// Lazy memory allocator (one item at a time)
182	<	void *operator new(size_t size)
183	<	{ return allocator_helper< sheepshaver_cpu, lazy_allocator >::allocate(); }
124	<	void operator delete(void *p)
125	<	{ allocator_helper< sheepshaver_cpu, lazy_allocator >::deallocate(p); }
126	<	// FIXME: really make surre array allocation fail at link time?
127	<	void *operator new[](size_t);
128	<	void operator delete[](void *p);
181	>	// Memory allocator returning areas aligned on 16-byte boundaries
182	>	void *operator new(size_t size);
183	>	void operator delete(void *p);
184		};
185
186	<	uint32 sheepshaver_cpu::spcflags = 0;
187	<	lazy_allocator< sheepshaver_cpu > allocator_helper< sheepshaver_cpu, lazy_allocator >::allocator;
186	>	// Memory allocator returning areas aligned on 16-byte boundaries
187	>	void *sheepshaver_cpu::operator new(size_t size)
188	>	{
189	>	void *p;
190	>
191	>	#if defined(HAVE_POSIX_MEMALIGN)
192	>	if (posix_memalign(&p, 16, size) != 0)
193	>	throw std::bad_alloc();
194	>	#elif defined(HAVE_MEMALIGN)
195	>	p = memalign(16, size);
196	>	#elif defined(HAVE_VALLOC)
197	>	p = valloc(size); // page-aligned!
198	>	#else
199	>	/* XXX: handle padding ourselves */
200	>	p = malloc(size);
201	>	#endif
202	>
203	>	return p;
204	>	}
205	>
206	>	void sheepshaver_cpu::operator delete(void *p)
207	>	{
208	>	#if defined(HAVE_MEMALIGN) || defined(HAVE_VALLOC)
209	>	#if defined(__GLIBC__)
210	>	// this is known to work only with GNU libc
211	>	free(p);
212	>	#endif
213	>	#else
214	>	free(p);
215	>	#endif
216	>	}
217
218		sheepshaver_cpu::sheepshaver_cpu()
219	<	: powerpc_cpu()
219	>	: powerpc_cpu(enable_jit_p())
220		{
221		init_decoder();
222		}
223
224		void sheepshaver_cpu::init_decoder()
225		{
142	–	#ifndef PPC_NO_STATIC_II_INDEX_TABLE
143	–	static bool initialized = false;
144	–	if (initialized)
145	–	return;
146	–	initialized = true;
147	–	#endif
148	–
226		static const instr_info_t sheep_ii_table[] = {
227		{ "sheep",
228	<	(execute_fn)&sheepshaver_cpu::execute_sheep,
228	>	(execute_pmf)&sheepshaver_cpu::execute_sheep,
229		NULL,
230	+	PPC_I(SHEEP),
231		D_form, 6, 0, CFLOW_JUMP | CFLOW_TRAP
232		}
233		};
#	Line 163 | Line 241 | void sheepshaver_cpu::init_decoder()
241		}
242		}
243
166	–	// Forward declaration for native opcode handler
167	–	static void NativeOp(int selector);
168	–
244		/*              NativeOp instruction format:
245	<	+------------+--------------------------+--+----------+------------+
246	<	|      6     |                          |FN|    OP    |      2     |
247	<	+------------+--------------------------+--+----------+------------+
248	<	0         5 |6                       19 20 21      25 26        31
245	>	+------------+-------------------------+--+-----------+------------+
246	>	|      6     |                         |FN|    OP     |      2     |
247	>	+------------+-------------------------+--+-----------+------------+
248	>	0         5 |6                      18 19 20      25 26        31
249		*/
250
251	<	typedef bit_field< 20, 20 > FN_field;
252	<	typedef bit_field< 21, 25 > NATIVE_OP_field;
251	>	typedef bit_field< 19, 19 > FN_field;
252	>	typedef bit_field< 20, 25 > NATIVE_OP_field;
253		typedef bit_field< 26, 31 > EMUL_OP_field;
254
255	+	// Execute EMUL_OP routine
256	+	void sheepshaver_cpu::execute_emul_op(uint32 emul_op)
257	+	{
258	+	M68kRegisters r68;
259	+	WriteMacInt32(XLM_68K_R25, gpr(25));
260	+	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
261	+	for (int i = 0; i < 8; i++)
262	+	r68.d[i] = gpr(8 + i);
263	+	for (int i = 0; i < 7; i++)
264	+	r68.a[i] = gpr(16 + i);
265	+	r68.a[7] = gpr(1);
266	+	uint32 saved_cr = get_cr() & CR_field<2>::mask();
267	+	uint32 saved_xer = get_xer();
268	+	EmulOp(&r68, gpr(24), emul_op);
269	+	set_cr(saved_cr);
270	+	set_xer(saved_xer);
271	+	for (int i = 0; i < 8; i++)
272	+	gpr(8 + i) = r68.d[i];
273	+	for (int i = 0; i < 7; i++)
274	+	gpr(16 + i) = r68.a[i];
275	+	gpr(1) = r68.a[7];
276	+	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
277	+	}
278	+
279		// Execute SheepShaver instruction
280		void sheepshaver_cpu::execute_sheep(uint32 opcode)
281		{
#	Line 189 | Line 288 | void sheepshaver_cpu::execute_sheep(uint
288		break;
289
290		case 1:         // EXEC_RETURN
291	<	throw sheepshaver_exec_return();
291	>	spcflags().set(SPCFLAG_CPU_EXEC_RETURN);
292		break;
293
294		case 2:         // EXEC_NATIVE
295	<	NativeOp(NATIVE_OP_field::extract(opcode));
295	>	execute_native_op(NATIVE_OP_field::extract(opcode));
296		if (FN_field::test(opcode))
297		pc() = lr();
298		else
299		pc() += 4;
300		break;
301
302	<	default: {      // EMUL_OP
303	<	M68kRegisters r68;
205	<	WriteMacInt32(XLM_68K_R25, gpr(25));
206	<	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
207	<	for (int i = 0; i < 8; i++)
208	<	r68.d[i] = gpr(8 + i);
209	<	for (int i = 0; i < 7; i++)
210	<	r68.a[i] = gpr(16 + i);
211	<	r68.a[7] = gpr(1);
212	<	EmulOp(&r68, gpr(24), EMUL_OP_field::extract(opcode) - 3);
213	<	for (int i = 0; i < 8; i++)
214	<	gpr(8 + i) = r68.d[i];
215	<	for (int i = 0; i < 7; i++)
216	<	gpr(16 + i) = r68.a[i];
217	<	gpr(1) = r68.a[7];
218	<	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
302	>	default:        // EMUL_OP
303	>	execute_emul_op(EMUL_OP_field::extract(opcode) - 3);
304		pc() += 4;
305		break;
306		}
222	–	}
307		}
308
309	<	// Execution loop
310	<	void sheepshaver_cpu::execute(uint32 entry, bool enable_cache)
311	<	{
312	<	try {
313	<	powerpc_cpu::execute(entry, enable_cache);
309	>	// Compile one instruction
310	>	#if PPC_ENABLE_JIT
311	>	int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
312	>	{
313	>	const instr_info_t *ii = cg_context.instr_info;
314	>	if (ii->mnemo != PPC_I(SHEEP))
315	>	return COMPILE_FAILURE;
316	>
317	>	int status = COMPILE_FAILURE;
318	>	powerpc_dyngen & dg = cg_context.codegen;
319	>	uint32 opcode = cg_context.opcode;
320	>
321	>	switch (opcode & 0x3f) {
322	>	case 0:         // EMUL_RETURN
323	>	dg.gen_invoke(QuitEmulator);
324	>	status = COMPILE_CODE_OK;
325	>	break;
326	>
327	>	case 1:         // EXEC_RETURN
328	>	dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN);
329	>	// Don't check for pending interrupts, we do know we have to
330	>	// get out of this block ASAP
331	>	dg.gen_exec_return();
332	>	status = COMPILE_EPILOGUE_OK;
333	>	break;
334	>
335	>	case 2: {       // EXEC_NATIVE
336	>	uint32 selector = NATIVE_OP_field::extract(opcode);
337	>	switch (selector) {
338	>	#if !PPC_REENTRANT_JIT
339	>	// Filter out functions that may invoke Execute68k() or
340	>	// CallMacOS(), this would break reentrancy as they could
341	>	// invalidate the translation cache and even overwrite
342	>	// continuation code when we are done with them.
343	>	case NATIVE_PATCH_NAME_REGISTRY:
344	>	dg.gen_invoke(DoPatchNameRegistry);
345	>	status = COMPILE_CODE_OK;
346	>	break;
347	>	case NATIVE_VIDEO_INSTALL_ACCEL:
348	>	dg.gen_invoke(VideoInstallAccel);
349	>	status = COMPILE_CODE_OK;
350	>	break;
351	>	case NATIVE_VIDEO_VBL:
352	>	dg.gen_invoke(VideoVBL);
353	>	status = COMPILE_CODE_OK;
354	>	break;
355	>	case NATIVE_GET_RESOURCE:
356	>	case NATIVE_GET_1_RESOURCE:
357	>	case NATIVE_GET_IND_RESOURCE:
358	>	case NATIVE_GET_1_IND_RESOURCE:
359	>	case NATIVE_R_GET_RESOURCE: {
360	>	static const uint32 get_resource_ptr[] = {
361	>	XLM_GET_RESOURCE,
362	>	XLM_GET_1_RESOURCE,
363	>	XLM_GET_IND_RESOURCE,
364	>	XLM_GET_1_IND_RESOURCE,
365	>	XLM_R_GET_RESOURCE
366	>	};
367	>	uint32 old_get_resource = ReadMacInt32(get_resource_ptr[selector - NATIVE_GET_RESOURCE]);
368	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
369	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::get_resource).ptr();
370	>	dg.gen_invoke_CPU_im(func, old_get_resource);
371	>	status = COMPILE_CODE_OK;
372	>	break;
373	>	}
374	>	case NATIVE_CHECK_LOAD_INVOC:
375	>	dg.gen_load_T0_GPR(3);
376	>	dg.gen_load_T1_GPR(4);
377	>	dg.gen_se_16_32_T1();
378	>	dg.gen_load_T2_GPR(5);
379	>	dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc);
380	>	status = COMPILE_CODE_OK;
381	>	break;
382	>	#endif
383	>	case NATIVE_BITBLT:
384	>	dg.gen_load_T0_GPR(3);
385	>	dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
386	>	status = COMPILE_CODE_OK;
387	>	break;
388	>	case NATIVE_INVRECT:
389	>	dg.gen_load_T0_GPR(3);
390	>	dg.gen_invoke_T0((void (*)(uint32))NQD_invrect);
391	>	status = COMPILE_CODE_OK;
392	>	break;
393	>	case NATIVE_FILLRECT:
394	>	dg.gen_load_T0_GPR(3);
395	>	dg.gen_invoke_T0((void (*)(uint32))NQD_fillrect);
396	>	status = COMPILE_CODE_OK;
397	>	break;
398	>	}
399	>	// Could we fully translate this NativeOp?
400	>	if (status == COMPILE_CODE_OK) {
401	>	if (!FN_field::test(opcode))
402	>	cg_context.done_compile = false;
403	>	else {
404	>	dg.gen_load_A0_LR();
405	>	dg.gen_set_PC_A0();
406	>	cg_context.done_compile = true;
407	>	}
408	>	break;
409	>	}
410	>	#if PPC_REENTRANT_JIT
411	>	// Try to execute NativeOp trampoline
412	>	if (!FN_field::test(opcode))
413	>	dg.gen_set_PC_im(cg_context.pc + 4);
414	>	else {
415	>	dg.gen_load_A0_LR();
416	>	dg.gen_set_PC_A0();
417	>	}
418	>	dg.gen_mov_32_T0_im(selector);
419	>	dg.gen_jmp(native_op_trampoline);
420	>	cg_context.done_compile = true;
421	>	status = COMPILE_EPILOGUE_OK;
422	>	break;
423	>	#endif
424	>	// Invoke NativeOp handler
425	>	if (!FN_field::test(opcode)) {
426	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
427	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
428	>	dg.gen_invoke_CPU_im(func, selector);
429	>	cg_context.done_compile = false;
430	>	status = COMPILE_CODE_OK;
431	>	}
432	>	// Otherwise, let it generate a call to execute_sheep() which
433	>	// will cause necessary updates to the program counter
434	>	break;
435		}
436	<	catch (sheepshaver_exec_return const &) {
437	<	// Nothing, simply return
436	>
437	>	default: {      // EMUL_OP
438	>	uint32 emul_op = EMUL_OP_field::extract(opcode) - 3;
439	>	#if PPC_REENTRANT_JIT
440	>	// Try to execute EmulOp trampoline
441	>	dg.gen_set_PC_im(cg_context.pc + 4);
442	>	dg.gen_mov_32_T0_im(emul_op);
443	>	dg.gen_jmp(emul_op_trampoline);
444	>	cg_context.done_compile = true;
445	>	status = COMPILE_EPILOGUE_OK;
446	>	break;
447	>	#endif
448	>	// Invoke EmulOp handler
449	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
450	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
451	>	dg.gen_invoke_CPU_im(func, emul_op);
452	>	cg_context.done_compile = false;
453	>	status = COMPILE_CODE_OK;
454	>	break;
455		}
234	–	catch (...) {
235	–	printf("ERROR: execute() received an unknown exception!\n");
236	–	QuitEmulator();
456		}
457	+	return status;
458		}
459	+	#endif
460
461		// Handle MacOS interrupt
462		void sheepshaver_cpu::interrupt(uint32 entry)
463		{
464	<	#if !MULTICORE_CPU
464	>	#if EMUL_TIME_STATS
465	>	ppc_interrupt_count++;
466	>	const clock_t interrupt_start = clock();
467	>	#endif
468	>
469		// Save program counters and branch registers
470		uint32 saved_pc = pc();
471		uint32 saved_lr = lr();
472		uint32 saved_ctr= ctr();
473		uint32 saved_sp = gpr(1);
249	–	#endif
474
475		// Initialize stack pointer to SheepShaver alternate stack base
476	<	gpr(1) = SheepStack1Base - 64;
476	>	gpr(1) = SignalStackBase() - 64;
477
478		// Build trampoline to return from interrupt
479	<	uint32 trampoline[] = { htonl(POWERPC_EMUL_OP | 1) };
479	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
480
481		// Prepare registers for nanokernel interrupt routine
482		kernel_data->v[0x004 >> 2] = htonl(gpr(1));
#	Line 271 | Line 495 | void sheepshaver_cpu::interrupt(uint32 e
495		gpr(1)  = KernelDataAddr;
496		gpr(7)  = ntohl(kernel_data->v[0x660 >> 2]);
497		gpr(8)  = 0;
498	<	gpr(10) = (uint32)trampoline;
499	<	gpr(12) = (uint32)trampoline;
498	>	gpr(10) = trampoline.addr();
499	>	gpr(12) = trampoline.addr();
500		gpr(13) = get_cr();
501
502		// rlwimi. r7,r7,8,0,0
#	Line 286 | Line 510 | void sheepshaver_cpu::interrupt(uint32 e
510		// Enter nanokernel
511		execute(entry);
512
289	–	#if !MULTICORE_CPU
513		// Restore program counters and branch registers
514		pc() = saved_pc;
515		lr() = saved_lr;
516		ctr()= saved_ctr;
517		gpr(1) = saved_sp;
518	+
519	+	#if EMUL_TIME_STATS
520	+	interrupt_time += (clock() - interrupt_start);
521		#endif
522		}
523
524		// Execute 68k routine
525		void sheepshaver_cpu::execute_68k(uint32 entry, M68kRegisters *r)
526		{
527	+	#if EMUL_TIME_STATS
528	+	exec68k_count++;
529	+	const clock_t exec68k_start = clock();
530	+	#endif
531	+
532		#if SAFE_EXEC_68K
533		if (ReadMacInt32(XLM_RUN_MODE) != MODE_EMUL_OP)
534		printf("FATAL: Execute68k() not called from EMUL_OP mode\n");
#	Line 380 | Line 611 | void sheepshaver_cpu::execute_68k(uint32
611		lr() = saved_lr;
612		ctr()= saved_ctr;
613		set_cr(saved_cr);
614	+
615	+	#if EMUL_TIME_STATS
616	+	exec68k_time += (clock() - exec68k_start);
617	+	#endif
618		}
619
620		// Call MacOS PPC code
621		uint32 sheepshaver_cpu::execute_macos_code(uint32 tvect, int nargs, uint32 const *args)
622		{
623	+	#if EMUL_TIME_STATS
624	+	macos_exec_count++;
625	+	const clock_t macos_exec_start = clock();
626	+	#endif
627	+
628		// Save program counters and branch registers
629		uint32 saved_pc = pc();
630		uint32 saved_lr = lr();
631		uint32 saved_ctr= ctr();
632
633		// Build trampoline with EXEC_RETURN
634	<	uint32 trampoline[] = { htonl(POWERPC_EMUL_OP | 1) };
635	<	lr() = (uint32)trampoline;
634	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
635	>	lr() = trampoline.addr();
636
637		gpr(1) -= 64;                                                           // Create stack frame
638		uint32 proc = ReadMacInt32(tvect);                      // Get routine address
#	Line 423 | Line 663 | uint32 sheepshaver_cpu::execute_macos_co
663		lr() = saved_lr;
664		ctr()= saved_ctr;
665
666	+	#if EMUL_TIME_STATS
667	+	macos_exec_time += (clock() - macos_exec_start);
668	+	#endif
669	+
670		return retval;
671		}
672
#	Line 432 | Line 676 | inline void sheepshaver_cpu::execute_ppc
676		// Save branch registers
677		uint32 saved_lr = lr();
678
679	<	const uint32 trampoline[] = { htonl(POWERPC_EMUL_OP | 1) };
680	<	lr() = (uint32)trampoline;
679	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
680	>	WriteMacInt32(trampoline.addr(), POWERPC_EXEC_RETURN);
681	>	lr() = trampoline.addr();
682
683		execute(entry);
684
#	Line 442 | Line 687 | inline void sheepshaver_cpu::execute_ppc
687		}
688
689		// Resource Manager thunk
445	–	extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h);
446	–
690		inline void sheepshaver_cpu::get_resource(uint32 old_get_resource)
691		{
692		uint32 type = gpr(3);
#	Line 469 | Line 712 | inline void sheepshaver_cpu::get_resourc
712		*              SheepShaver CPU engine interface
713		**/
714
715	<	static sheepshaver_cpu *main_cpu = NULL;                // CPU emulator to handle usual control flow
716	<	static sheepshaver_cpu *interrupt_cpu = NULL;   // CPU emulator to handle interrupts
474	<	static sheepshaver_cpu *current_cpu = NULL;             // Current CPU emulator context
715	>	// PowerPC CPU emulator
716	>	static sheepshaver_cpu *ppc_cpu = NULL;
717
718		void FlushCodeCache(uintptr start, uintptr end)
719		{
720		D(bug("FlushCodeCache(%08x, %08x)\n", start, end));
721	<	main_cpu->invalidate_cache_range(start, end);
480	<	#if MULTICORE_CPU
481	<	interrupt_cpu->invalidate_cache_range(start, end);
482	<	#endif
483	<	}
484	<
485	<	static inline void cpu_push(sheepshaver_cpu *new_cpu)
486	<	{
487	<	#if MULTICORE_CPU
488	<	current_cpu = new_cpu;
489	<	#endif
490	<	}
491	<
492	<	static inline void cpu_pop()
493	<	{
494	<	#if MULTICORE_CPU
495	<	current_cpu = main_cpu;
496	<	#endif
721	>	ppc_cpu->invalidate_cache_range(start, end);
722		}
723
724		// Dump PPC registers
725		static void dump_registers(void)
726		{
727	<	current_cpu->dump_registers();
727	>	ppc_cpu->dump_registers();
728		}
729
730		// Dump log
731		static void dump_log(void)
732		{
733	<	current_cpu->dump_log();
733	>	ppc_cpu->dump_log();
734		}
735
736		/*
737		*  Initialize CPU emulation
738		*/
739
740	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
740	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
741		{
742		#if ENABLE_VOSF
743		// Handle screen fault
#	Line 524 | Line 749 | static sigsegv_return_t sigsegv_handler(
749		const uintptr addr = (uintptr)fault_address;
750		#if HAVE_SIGSEGV_SKIP_INSTRUCTION
751		// Ignore writes to ROM
752	<	if ((addr - ROM_BASE) < ROM_SIZE)
752	>	if ((addr - (uintptr)ROMBaseHost) < ROM_SIZE)
753		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
754
755	<	// Ignore all other faults, if requested
756	<	if (PrefsFindBool("ignoresegv"))
757	<	return SIGSEGV_RETURN_FAILURE;
755	>	// Get program counter of target CPU
756	>	sheepshaver_cpu * const cpu = ppc_cpu;
757	>	const uint32 pc = cpu->pc();
758	>
759	>	// Fault in Mac ROM or RAM?
760	>	bool mac_fault = (pc >= ROM_BASE) && (pc < (ROM_BASE + ROM_AREA_SIZE)) || (pc >= RAMBase) && (pc < (RAMBase + RAMSize)) || (pc >= DR_CACHE_BASE && pc < (DR_CACHE_BASE + DR_CACHE_SIZE));
761	>	if (mac_fault) {
762	>
763	>	// "VM settings" during MacOS 8 installation
764	>	if (pc == ROM_BASE + 0x488160 && cpu->gpr(20) == 0xf8000000)
765	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
766	>
767	>	// MacOS 8.5 installation
768	>	else if (pc == ROM_BASE + 0x488140 && cpu->gpr(16) == 0xf8000000)
769	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
770	>
771	>	// MacOS 8 serial drivers on startup
772	>	else if (pc == ROM_BASE + 0x48e080 && (cpu->gpr(8) == 0xf3012002 || cpu->gpr(8) == 0xf3012000))
773	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
774	>
775	>	// MacOS 8.1 serial drivers on startup
776	>	else if (pc == ROM_BASE + 0x48c5e0 && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
777	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
778	>	else if (pc == ROM_BASE + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
779	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
780	>
781	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
782	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(16) == 0xf3012002 || cpu->gpr(16) == 0xf3012000))
783	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
784	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
785	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
786	>
787	>	// Ignore writes to the zero page
788	>	else if ((uint32)(addr - SheepMem::ZeroPage()) < (uint32)SheepMem::PageSize())
789	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
790	>
791	>	// Ignore all other faults, if requested
792	>	if (PrefsFindBool("ignoresegv"))
793	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
794	>	}
795		#else
796		#error "FIXME: You don't have the capability to skip instruction within signal handlers"
797		#endif
#	Line 537 | Line 799 | static sigsegv_return_t sigsegv_handler(
799		printf("SIGSEGV\n");
800		printf("  pc %p\n", fault_instruction);
801		printf("  ea %p\n", fault_address);
540	–	printf(" cpu %s\n", current_cpu == main_cpu ? "main" : "interrupts");
802		dump_registers();
803	<	current_cpu->dump_log();
803	>	ppc_cpu->dump_log();
804		enter_mon();
805		QuitEmulator();
806
#	Line 548 | Line 809 | static sigsegv_return_t sigsegv_handler(
809
810		void init_emul_ppc(void)
811		{
812	+	// Get pointer to KernelData in host address space
813	+	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
814	+
815		// Initialize main CPU emulator
816	<	main_cpu = new sheepshaver_cpu();
817	<	main_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
816	>	ppc_cpu = new sheepshaver_cpu();
817	>	ppc_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
818	>	ppc_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
819		WriteMacInt32(XLM_RUN_MODE, MODE_68K);
820
556	–	#if MULTICORE_CPU
557	–	// Initialize alternate CPU emulator to handle interrupts
558	–	interrupt_cpu = new sheepshaver_cpu();
559	–	#endif
560	–
561	–	// Install the handler for SIGSEGV
562	–	sigsegv_install_handler(sigsegv_handler);
563	–
821		#if ENABLE_MON
822		// Install "regs" command in cxmon
823		mon_add_command("regs", dump_registers, "regs                     Dump PowerPC registers\n");
824		mon_add_command("log", dump_log, "log                      Dump PowerPC emulation log\n");
825		#endif
826	+
827	+	#if EMUL_TIME_STATS
828	+	emul_start_time = clock();
829	+	#endif
830		}
831
832		/*
833	+	*  Deinitialize emulation
834	+	*/
835	+
836	+	void exit_emul_ppc(void)
837	+	{
838	+	#if EMUL_TIME_STATS
839	+	clock_t emul_end_time = clock();
840	+
841	+	printf("### Statistics for SheepShaver emulation parts\n");
842	+	const clock_t emul_time = emul_end_time - emul_start_time;
843	+	printf("Total emulation time : %.1f sec\n", double(emul_time) / double(CLOCKS_PER_SEC));
844	+	printf("Total interrupt count: %d (%2.1f Hz)\n", interrupt_count,
845	+	(double(interrupt_count) * CLOCKS_PER_SEC) / double(emul_time));
846	+	printf("Total ppc interrupt count: %d (%2.1f %%)\n", ppc_interrupt_count,
847	+	(double(ppc_interrupt_count) * 100.0) / double(interrupt_count));
848	+
849	+	#define PRINT_STATS(LABEL, VAR_PREFIX) do {                                                             \
850	+	printf("Total " LABEL " count : %d\n", VAR_PREFIX##_count);             \
851	+	printf("Total " LABEL " time  : %.1f sec (%.1f%%)\n",                   \
852	+	double(VAR_PREFIX##_time) / double(CLOCKS_PER_SEC),          \
853	+	100.0 * double(VAR_PREFIX##_time) / double(emul_time));      \
854	+	} while (0)
855	+
856	+	PRINT_STATS("Execute68k[Trap] execution", exec68k);
857	+	PRINT_STATS("NativeOp execution", native_exec);
858	+	PRINT_STATS("MacOS routine execution", macos_exec);
859	+
860	+	#undef PRINT_STATS
861	+	printf("\n");
862	+	#endif
863	+
864	+	delete ppc_cpu;
865	+	}
866	+
867	+	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
868	+	// Initialize EmulOp trampolines
869	+	void init_emul_op_trampolines(basic_dyngen & dg)
870	+	{
871	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
872	+	func_t func;
873	+
874	+	// EmulOp
875	+	emul_op_trampoline = dg.gen_start();
876	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
877	+	dg.gen_invoke_CPU_T0(func);
878	+	dg.gen_exec_return();
879	+	dg.gen_end();
880	+
881	+	// NativeOp
882	+	native_op_trampoline = dg.gen_start();
883	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
884	+	dg.gen_invoke_CPU_T0(func);
885	+	dg.gen_exec_return();
886	+	dg.gen_end();
887	+
888	+	D(bug("EmulOp trampoline:   %p\n", emul_op_trampoline));
889	+	D(bug("NativeOp trampoline: %p\n", native_op_trampoline));
890	+	}
891	+	#endif
892	+
893	+	/*
894		*  Emulation loop
895		*/
896
897		void emul_ppc(uint32 entry)
898		{
899	<	current_cpu = main_cpu;
900	<	#if DEBUG
579	<	current_cpu->start_log();
899	>	#if 0
900	>	ppc_cpu->start_log();
901		#endif
902		// start emulation loop and enable code translation or caching
903	<	current_cpu->execute(entry, true);
903	>	ppc_cpu->execute(entry);
904		}
905
906		/*
907		*  Handle PowerPC interrupt
908		*/
909
589	–	#if !ASYNC_IRQ
910		void TriggerInterrupt(void)
911		{
912		#if 0
913		WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
914		#else
915		// Trigger interrupt to main cpu only
916	<	if (main_cpu)
917	<	main_cpu->trigger_interrupt();
916	>	if (ppc_cpu)
917	>	ppc_cpu->trigger_interrupt();
918		#endif
919		}
600	–	#endif
920
921	<	void sheepshaver_cpu::handle_interrupt(void)
921	>	void HandleInterrupt(powerpc_registers *r)
922		{
923	+	#ifdef USE_SDL_VIDEO
924	+	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
925	+	SDL_PumpEvents();
926	+	#endif
927	+
928		// Do nothing if interrupts are disabled
929		if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
930		return;
931
932	<	// Do nothing if there is no interrupt pending
933	<	if (InterruptFlags == 0)
934	<	return;
935	<
612	<	// Disable MacOS stack sniffer
613	<	WriteMacInt32(0x110, 0);
932	>	// Increment interrupt counter
933	>	#if EMUL_TIME_STATS
934	>	interrupt_count++;
935	>	#endif
936
937		// Interrupt action depends on current run mode
938		switch (ReadMacInt32(XLM_RUN_MODE)) {
939		case MODE_68K:
940		// 68k emulator active, trigger 68k interrupt level 1
619	–	assert(current_cpu == main_cpu);
941		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
942	<	set_cr(get_cr() | tswap32(kernel_data->v[0x674 >> 2]));
942	>	r->cr.set(r->cr.get() | tswap32(kernel_data->v[0x674 >> 2]));
943		break;
944
945		#if INTERRUPTS_IN_NATIVE_MODE
946		case MODE_NATIVE:
947		// 68k emulator inactive, in nanokernel?
948	<	assert(current_cpu == main_cpu);
949	<	if (gpr(1) != KernelDataAddr) {
948	>	if (r->gpr[1] != KernelDataAddr) {
949	>
950		// Prepare for 68k interrupt level 1
951		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
952		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 634 | Line 955 | void sheepshaver_cpu::handle_interrupt(v
955
956		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
957		DisableInterrupt();
637	–	cpu_push(interrupt_cpu);
958		if (ROMType == ROMTYPE_NEWWORLD)
959	<	current_cpu->interrupt(ROM_BASE + 0x312b1c);
959	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
960		else
961	<	current_cpu->interrupt(ROM_BASE + 0x312a3c);
642	<	cpu_pop();
961	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
962		}
963		break;
964		#endif
#	Line 648 | Line 967 | void sheepshaver_cpu::handle_interrupt(v
967		case MODE_EMUL_OP:
968		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
969		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
970	+	#if EMUL_TIME_STATS
971	+	const clock_t interrupt_start = clock();
972	+	#endif
973		#if 1
974		// Execute full 68k interrupt routine
975		M68kRegisters r;
976		uint32 old_r25 = ReadMacInt32(XLM_68K_R25);     // Save interrupt level
977		WriteMacInt32(XLM_68K_R25, 0x21);                       // Execute with interrupt level 1
978	<	static const uint8 proc[] = {
978	>	static const uint8 proc_template[] = {
979		0x3f, 0x3c, 0x00, 0x00,                 // move.w       #$0000,-(sp)    (fake format word)
980		0x48, 0x7a, 0x00, 0x0a,                 // pea          @1(pc)                  (return address)
981		0x40, 0xe7,                                             // move         sr,-(sp)                (saved SR)
#	Line 661 | Line 983 | void sheepshaver_cpu::handle_interrupt(v
983		0x4e, 0xd0,                                             // jmp          (a0)
984		M68K_RTS >> 8, M68K_RTS & 0xff  // @1
985		};
986	<	Execute68k((uint32)proc, &r);
986	>	BUILD_SHEEPSHAVER_PROCEDURE(proc);
987	>	Execute68k(proc, &r);
988		WriteMacInt32(XLM_68K_R25, old_r25);            // Restore interrupt level
989		#else
990		// Only update cursor
#	Line 669 | Line 992 | void sheepshaver_cpu::handle_interrupt(v
992		if (InterruptFlags & INTFLAG_VIA) {
993		ClearInterruptFlag(INTFLAG_VIA);
994		ADBInterrupt();
995	<	ExecutePPC(VideoVBL);
995	>	ExecuteNative(NATIVE_VIDEO_VBL);
996		}
997		}
998		#endif
999	+	#if EMUL_TIME_STATS
1000	+	interrupt_time += (clock() - interrupt_start);
1001	+	#endif
1002		}
1003		break;
1004		#endif
1005		}
1006		}
1007
682	–	/*
683	–	*  Execute NATIVE_OP opcode (called by PowerPC emulator)
684	–	*/
685	–
686	–	#define POWERPC_NATIVE_OP_INIT(LR, OP) \
687	–	tswap32(POWERPC_EMUL_OP | ((LR) << 11) | (((uint32)OP) << 6) | 2)
688	–
689	–	// FIXME: Make sure 32-bit relocations are used
690	–	const uint32 NativeOpTable[NATIVE_OP_MAX] = {
691	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_PATCH_NAME_REGISTRY),
692	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_INSTALL_ACCEL),
693	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_VBL),
694	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_DO_DRIVER_IO),
695	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_IRQ),
696	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_INIT),
697	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_TERM),
698	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_OPEN),
699	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_CLOSE),
700	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_WPUT),
701	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_RSRV),
702	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_NOTHING),
703	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_OPEN),
704	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_IN),
705	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_OUT),
706	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CONTROL),
707	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_STATUS),
708	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CLOSE),
709	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_RESOURCE),
710	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_RESOURCE),
711	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_IND_RESOURCE),
712	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_IND_RESOURCE),
713	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_R_GET_RESOURCE),
714	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_DISABLE_INTERRUPT),
715	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_ENABLE_INTERRUPT),
716	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_MAKE_EXECUTABLE),
717	–	};
718	–
1008		static void get_resource(void);
1009		static void get_1_resource(void);
1010		static void get_ind_resource(void);
1011		static void get_1_ind_resource(void);
1012		static void r_get_resource(void);
1013
1014	<	#define GPR(REG) current_cpu->gpr(REG)
1015	<
727	<	static void NativeOp(int selector)
1014	>	// Execute NATIVE_OP routine
1015	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
1016		{
1017	+	#if EMUL_TIME_STATS
1018	+	native_exec_count++;
1019	+	const clock_t native_exec_start = clock();
1020	+	#endif
1021	+
1022		switch (selector) {
1023		case NATIVE_PATCH_NAME_REGISTRY:
1024		DoPatchNameRegistry();
#	Line 737 | Line 1030 | static void NativeOp(int selector)
1030		VideoVBL();
1031		break;
1032		case NATIVE_VIDEO_DO_DRIVER_IO:
1033	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void *)GPR(3), (void *)GPR(4),
741	<	(void *)GPR(5), GPR(6), GPR(7));
1033	>	gpr(3) = (int32)(int16)VideoDoDriverIO(gpr(3), gpr(4), gpr(5), gpr(6), gpr(7));
1034		break;
1035	<	case NATIVE_GET_RESOURCE:
1036	<	get_resource();
1035	>	case NATIVE_ETHER_IRQ:
1036	>	EtherIRQ();
1037		break;
1038	<	case NATIVE_GET_1_RESOURCE:
1039	<	get_1_resource();
1038	>	case NATIVE_ETHER_INIT:
1039	>	gpr(3) = InitStreamModule((void *)gpr(3));
1040		break;
1041	<	case NATIVE_GET_IND_RESOURCE:
1042	<	get_ind_resource();
1041	>	case NATIVE_ETHER_TERM:
1042	>	TerminateStreamModule();
1043		break;
1044	<	case NATIVE_GET_1_IND_RESOURCE:
1045	<	get_1_ind_resource();
1044	>	case NATIVE_ETHER_OPEN:
1045	>	gpr(3) = ether_open((queue_t *)gpr(3), (void *)gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1046	>	break;
1047	>	case NATIVE_ETHER_CLOSE:
1048	>	gpr(3) = ether_close((queue_t *)gpr(3), gpr(4), (void *)gpr(5));
1049	>	break;
1050	>	case NATIVE_ETHER_WPUT:
1051	>	gpr(3) = ether_wput((queue_t *)gpr(3), (mblk_t *)gpr(4));
1052	>	break;
1053	>	case NATIVE_ETHER_RSRV:
1054	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1055		break;
1056	<	case NATIVE_R_GET_RESOURCE:
1057	<	r_get_resource();
1056	>	case NATIVE_SYNC_HOOK:
1057	>	gpr(3) = NQD_sync_hook(gpr(3));
1058	>	break;
1059	>	case NATIVE_BITBLT_HOOK:
1060	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1061	>	break;
1062	>	case NATIVE_BITBLT:
1063	>	NQD_bitblt(gpr(3));
1064	>	break;
1065	>	case NATIVE_FILLRECT_HOOK:
1066	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1067	>	break;
1068	>	case NATIVE_INVRECT:
1069	>	NQD_invrect(gpr(3));
1070	>	break;
1071	>	case NATIVE_FILLRECT:
1072	>	NQD_fillrect(gpr(3));
1073		break;
1074		case NATIVE_SERIAL_NOTHING:
1075		case NATIVE_SERIAL_OPEN:
#	Line 772 | Line 1088 | static void NativeOp(int selector)
1088		SerialStatus,
1089		SerialClose
1090		};
1091	<	GPR(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](GPR(3), GPR(4));
1091	>	gpr(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](gpr(3), gpr(4));
1092		break;
1093		}
1094	<	case NATIVE_DISABLE_INTERRUPT:
1095	<	DisableInterrupt();
1096	<	break;
1097	<	case NATIVE_ENABLE_INTERRUPT:
1098	<	EnableInterrupt();
1094	>	case NATIVE_GET_RESOURCE:
1095	>	case NATIVE_GET_1_RESOURCE:
1096	>	case NATIVE_GET_IND_RESOURCE:
1097	>	case NATIVE_GET_1_IND_RESOURCE:
1098	>	case NATIVE_R_GET_RESOURCE: {
1099	>	typedef void (*GetResourceCallback)(void);
1100	>	static const GetResourceCallback get_resource_callbacks[] = {
1101	>	::get_resource,
1102	>	::get_1_resource,
1103	>	::get_ind_resource,
1104	>	::get_1_ind_resource,
1105	>	::r_get_resource
1106	>	};
1107	>	get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1108		break;
1109	+	}
1110		case NATIVE_MAKE_EXECUTABLE:
1111	<	MakeExecutable(0, (void *)GPR(4), GPR(5));
1111	>	MakeExecutable(0, gpr(4), gpr(5));
1112	>	break;
1113	>	case NATIVE_CHECK_LOAD_INVOC:
1114	>	check_load_invoc(gpr(3), gpr(4), gpr(5));
1115		break;
1116		default:
1117		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
1118		QuitEmulator();
1119		break;
1120		}
792	–	}
1121
1122	<	/*
1123	<	*  Execute native subroutine (LR must contain return address)
1124	<	*/
797	<
798	<	void ExecuteNative(int selector)
799	<	{
800	<	uint32 tvect[2];
801	<	tvect[0] = tswap32(POWERPC_NATIVE_OP_FUNC(selector));
802	<	tvect[1] = 0; // Fake TVECT
803	<	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
804	<	M68kRegisters r;
805	<	Execute68k((uint32)&desc, &r);
1122	>	#if EMUL_TIME_STATS
1123	>	native_exec_time += (clock() - native_exec_start);
1124	>	#endif
1125		}
1126
1127		/*
#	Line 813 | Line 1132 | void ExecuteNative(int selector)
1132
1133		void Execute68k(uint32 pc, M68kRegisters *r)
1134		{
1135	<	current_cpu->execute_68k(pc, r);
1135	>	ppc_cpu->execute_68k(pc, r);
1136		}
1137
1138		/*
#	Line 823 | Line 1142 | void Execute68k(uint32 pc, M68kRegisters
1142
1143		void Execute68kTrap(uint16 trap, M68kRegisters *r)
1144		{
1145	<	uint16 proc[2];
1146	<	proc[0] = htons(trap);
1147	<	proc[1] = htons(M68K_RTS);
1148	<	Execute68k((uint32)proc, r);
1145	>	SheepVar proc_var(4);
1146	>	uint32 proc = proc_var.addr();
1147	>	WriteMacInt16(proc, trap);
1148	>	WriteMacInt16(proc + 2, M68K_RTS);
1149	>	Execute68k(proc, r);
1150		}
1151
1152		/*
#	Line 835 | Line 1155 | void Execute68kTrap(uint16 trap, M68kReg
1155
1156		uint32 call_macos(uint32 tvect)
1157		{
1158	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1158	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1159		}
1160
1161		uint32 call_macos1(uint32 tvect, uint32 arg1)
1162		{
1163		const uint32 args[] = { arg1 };
1164	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1164	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1165		}
1166
1167		uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1168		{
1169		const uint32 args[] = { arg1, arg2 };
1170	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1170	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1171		}
1172
1173		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1174		{
1175		const uint32 args[] = { arg1, arg2, arg3 };
1176	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1176	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1177		}
1178
1179		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1180		{
1181		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1182	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1182	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1183		}
1184
1185		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1186		{
1187		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1188	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1188	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1189		}
1190
1191		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1192		{
1193		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1194	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1194	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1195		}
1196
1197		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1198		{
1199		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1200	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1200	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1201		}
1202
1203		/*
#	Line 886 | Line 1206 | uint32 call_macos7(uint32 tvect, uint32
1206
1207		void get_resource(void)
1208		{
1209	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1209	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1210		}
1211
1212		void get_1_resource(void)
1213		{
1214	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1214	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1215		}
1216
1217		void get_ind_resource(void)
1218		{
1219	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1219	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1220		}
1221
1222		void get_1_ind_resource(void)
1223		{
1224	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1224	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1225		}
1226
1227		void r_get_resource(void)
1228		{
1229	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1229	>	ppc_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1230		}

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