[ViewVC] Diff of: cebix/SheepShaver/src/kpx_cpu/sheepshaver

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.14 by gbeauche, 2003-11-03T21:28:29Z vs.
Revision 1.46 by gbeauche, 2004-06-22T17:10:08Z

#	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) 1997-2004 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 30 \| Line 30
30		#include "sigsegv.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
46		#if ENABLE_MON
47		#include "mon.h"
#	Line 46 \| Line 51
51		#define DEBUG 0
52		#include "debug.h"
53
54	+	// Emulation time statistics
55	+	#ifndef EMUL_TIME_STATS
56	+	#define EMUL_TIME_STATS 0
57	+	#endif
58	+
59	+	#if EMUL_TIME_STATS
60	+	static clock_t emul_start_time;
61	+	static uint32 interrupt_count = 0, ppc_interrupt_count = 0;
62	+	static clock_t interrupt_time = 0;
63	+	static uint32 exec68k_count = 0;
64	+	static clock_t exec68k_time = 0;
65	+	static uint32 native_exec_count = 0;
66	+	static clock_t native_exec_time = 0;
67	+	static uint32 macos_exec_count = 0;
68	+	static clock_t macos_exec_time = 0;
69	+	#endif
70	+
71		static void enter_mon(void)
72		{
73		// Start up mon in real-mode
#	Line 55 \| Line 77 \| static void enter_mon(void)
77		#endif
78		}
79
80	<	// Enable multicore (main/interrupts) cpu emulation?
81	<	#define MULTICORE_CPU (ASYNC_IRQ ? 1 : 0)
80	>	// From main_*.cpp
81	>	extern uintptr SignalStackBase();
82	>
83	>	// From rsrc_patches.cpp
84	>	extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h);
85	>
86	>	// PowerPC EmulOp to exit from emulation looop
87	>	const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP \| 1;
88	>
89	>	// Enable interrupt routine safety checks?
90	>	#define SAFE_INTERRUPT_PPC 1
91
92		// Enable Execute68k() safety checks?
93		#define SAFE_EXEC_68K 1
#	Line 70 \| Line 101 \| static void enter_mon(void)
101		// Interrupts in native mode?
102		#define INTERRUPTS_IN_NATIVE_MODE 1
103
104	+	// Enable native EMUL_OPs to be run without a mode switch
105	+	#define ENABLE_NATIVE_EMUL_OP 1
106	+
107		// Pointer to Kernel Data
108		static KernelData * const kernel_data = (KernelData *)KERNEL_DATA_BASE;
109
110	+	// SIGSEGV handler
111	+	static sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
112	+
113	+	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
114	+	// Special trampolines for EmulOp and NativeOp
115	+	static uint8 *emul_op_trampoline;
116	+	static uint8 *native_op_trampoline;
117	+	#endif
118	+
119	+	// JIT Compiler enabled?
120	+	static inline bool enable_jit_p()
121	+	{
122	+	return PrefsFindBool("jit");
123	+	}
124	+
125
126		/**
127		* PowerPC emulator glue with special 'sheep' opcodes
128		**/
129
130	+	enum {
131	+	PPC_I(SHEEP) = PPC_I(MAX),
132	+	PPC_I(SHEEP_MAX)
133	+	};
134	+
135		class sheepshaver_cpu
136		: public powerpc_cpu
137		{
138		void init_decoder();
139		void execute_sheep(uint32 opcode);
140
141	+	// Filter out EMUL_OP routines that only call native code
142	+	bool filter_execute_emul_op(uint32 emul_op);
143	+
144	+	// "Native" EMUL_OP routines
145	+	void execute_emul_op_microseconds();
146	+	void execute_emul_op_idle_time_1();
147	+	void execute_emul_op_idle_time_2();
148	+
149	+	// CPU context to preserve on interrupt
150	+	class interrupt_context {
151	+	uint32 gpr[32];
152	+	uint32 pc;
153	+	uint32 lr;
154	+	uint32 ctr;
155	+	uint32 cr;
156	+	uint32 xer;
157	+	sheepshaver_cpu *cpu;
158	+	const char *where;
159	+	public:
160	+	interrupt_context(sheepshaver_cpu _cpu, const char _where);
161	+	~interrupt_context();
162	+	};
163	+
164		public:
165
166		// Constructor
167		sheepshaver_cpu();
168
169	<	// Condition Register accessors
169	>	// CR & XER accessors
170		uint32 get_cr() const { return cr().get(); }
171		void set_cr(uint32 v) { cr().set(v); }
172	+	uint32 get_xer() const { return xer().get(); }
173	+	void set_xer(uint32 v) { xer().set(v); }
174	+
175	+	// Execute NATIVE_OP routine
176	+	void execute_native_op(uint32 native_op);
177
178	<	// Execution loop
179	<	void execute(uint32 entry, bool enable_cache = false);
178	>	// Execute EMUL_OP routine
179	>	void execute_emul_op(uint32 emul_op);
180
181		// Execute 68k routine
182		void execute_68k(uint32 entry, M68kRegisters *r);
#	Line 105 \| Line 187 \| public:
187		// Execute MacOS/PPC code
188		uint32 execute_macos_code(uint32 tvect, int nargs, uint32 const *args);
189
190	+	// Compile one instruction
191	+	virtual int compile1(codegen_context_t & cg_context);
192	+
193		// Resource manager thunk
194		void get_resource(uint32 old_get_resource);
195
#	Line 112 \| Line 197 \| public:
197		void interrupt(uint32 entry);
198		void handle_interrupt();
199
200	<	// Lazy memory allocator (one item at a time)
201	<	void *operator new(size_t size)
117	<	{ return allocator_helper< sheepshaver_cpu, lazy_allocator >::allocate(); }
118	<	void operator delete(void *p)
119	<	{ allocator_helper< sheepshaver_cpu, lazy_allocator >::deallocate(p); }
120	<	// FIXME: really make surre array allocation fail at link time?
121	<	void *operator new[](size_t);
122	<	void operator delete[](void *p);
200	>	// Make sure the SIGSEGV handler can access CPU registers
201	>	friend sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
202		};
203
204	<	lazy_allocator< sheepshaver_cpu > allocator_helper< sheepshaver_cpu, lazy_allocator >::allocator;
204	>	// Memory allocator returning areas aligned on 16-byte boundaries
205	>	void *operator new(size_t size)
206	>	{
207	>	void *p;
208	>
209	>	#if defined(HAVE_POSIX_MEMALIGN)
210	>	if (posix_memalign(&p, 16, size) != 0)
211	>	throw std::bad_alloc();
212	>	#elif defined(HAVE_MEMALIGN)
213	>	p = memalign(16, size);
214	>	#elif defined(HAVE_VALLOC)
215	>	p = valloc(size); // page-aligned!
216	>	#else
217	>	/* XXX: handle padding ourselves */
218	>	p = malloc(size);
219	>	#endif
220	>
221	>	return p;
222	>	}
223	>
224	>	void operator delete(void *p)
225	>	{
226	>	#if defined(HAVE_MEMALIGN) \|\| defined(HAVE_VALLOC)
227	>	#if defined(__GLIBC__)
228	>	// this is known to work only with GNU libc
229	>	free(p);
230	>	#endif
231	>	#else
232	>	free(p);
233	>	#endif
234	>	}
235
236		sheepshaver_cpu::sheepshaver_cpu()
237	<	: powerpc_cpu()
237	>	: powerpc_cpu(enable_jit_p())
238		{
239		init_decoder();
240		}
241
242		void sheepshaver_cpu::init_decoder()
243		{
135	–	#ifndef PPC_NO_STATIC_II_INDEX_TABLE
136	–	static bool initialized = false;
137	–	if (initialized)
138	–	return;
139	–	initialized = true;
140	–	#endif
141	–
244		static const instr_info_t sheep_ii_table[] = {
245		{ "sheep",
246		(execute_pmf)&sheepshaver_cpu::execute_sheep,
247		NULL,
248	+	PPC_I(SHEEP),
249		D_form, 6, 0, CFLOW_JUMP \| CFLOW_TRAP
250		}
251		};
#	Line 156 \| Line 259 \| void sheepshaver_cpu::init_decoder()
259		}
260		}
261
159	–	// Forward declaration for native opcode handler
160	–	static void NativeOp(int selector);
161	–
262		/* NativeOp instruction format:
263	<	+------------+--------------------------+--+----------+------------+
264	<	\| 6 \| \|FN\| OP \| 2 \|
265	<	+------------+--------------------------+--+----------+------------+
266	<	0 5 \|6 19 20 21 25 26 31
263	>	+------------+-------------------------+--+-----------+------------+
264	>	\| 6 \| \|FN\| OP \| 2 \|
265	>	+------------+-------------------------+--+-----------+------------+
266	>	0 5 \|6 18 19 20 25 26 31
267		*/
268
269	<	typedef bit_field< 20, 20 > FN_field;
270	<	typedef bit_field< 21, 25 > NATIVE_OP_field;
269	>	typedef bit_field< 19, 19 > FN_field;
270	>	typedef bit_field< 20, 25 > NATIVE_OP_field;
271		typedef bit_field< 26, 31 > EMUL_OP_field;
272
273	+	// "Native" EMUL_OP routines
274	+	#define GPR_A(REG) gpr(16 + (REG))
275	+	#define GPR_D(REG) gpr( 8 + (REG))
276	+
277	+	void sheepshaver_cpu::execute_emul_op_microseconds()
278	+	{
279	+	Microseconds(GPR_A(0), GPR_D(0));
280	+	}
281	+
282	+	void sheepshaver_cpu::execute_emul_op_idle_time_1()
283	+	{
284	+	// Sleep if no events pending
285	+	if (ReadMacInt32(0x14c) == 0)
286	+	Delay_usec(16667);
287	+	GPR_A(0) = ReadMacInt32(0x2b6);
288	+	}
289	+
290	+	void sheepshaver_cpu::execute_emul_op_idle_time_2()
291	+	{
292	+	// Sleep if no events pending
293	+	if (ReadMacInt32(0x14c) == 0)
294	+	Delay_usec(16667);
295	+	GPR_D(0) = (uint32)-2;
296	+	}
297	+
298	+	// Filter out EMUL_OP routines that only call native code
299	+	bool sheepshaver_cpu::filter_execute_emul_op(uint32 emul_op)
300	+	{
301	+	switch (emul_op) {
302	+	case OP_MICROSECONDS:
303	+	execute_emul_op_microseconds();
304	+	return true;
305	+	case OP_IDLE_TIME:
306	+	execute_emul_op_idle_time_1();
307	+	return true;
308	+	case OP_IDLE_TIME_2:
309	+	execute_emul_op_idle_time_2();
310	+	return true;
311	+	}
312	+	return false;
313	+	}
314	+
315	+	// Execute EMUL_OP routine
316	+	void sheepshaver_cpu::execute_emul_op(uint32 emul_op)
317	+	{
318	+	#if ENABLE_NATIVE_EMUL_OP
319	+	// First, filter out EMUL_OPs that can be executed without a mode switch
320	+	if (filter_execute_emul_op(emul_op))
321	+	return;
322	+	#endif
323	+
324	+	M68kRegisters r68;
325	+	WriteMacInt32(XLM_68K_R25, gpr(25));
326	+	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
327	+	for (int i = 0; i < 8; i++)
328	+	r68.d[i] = gpr(8 + i);
329	+	for (int i = 0; i < 7; i++)
330	+	r68.a[i] = gpr(16 + i);
331	+	r68.a[7] = gpr(1);
332	+	uint32 saved_cr = get_cr() & CR_field<2>::mask();
333	+	uint32 saved_xer = get_xer();
334	+	EmulOp(&r68, gpr(24), emul_op);
335	+	set_cr(saved_cr);
336	+	set_xer(saved_xer);
337	+	for (int i = 0; i < 8; i++)
338	+	gpr(8 + i) = r68.d[i];
339	+	for (int i = 0; i < 7; i++)
340	+	gpr(16 + i) = r68.a[i];
341	+	gpr(1) = r68.a[7];
342	+	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
343	+	}
344	+
345		// Execute SheepShaver instruction
346		void sheepshaver_cpu::execute_sheep(uint32 opcode)
347		{
#	Line 186 \| Line 358 \| void sheepshaver_cpu::execute_sheep(uint
358		break;
359
360		case 2: // EXEC_NATIVE
361	<	NativeOp(NATIVE_OP_field::extract(opcode));
361	>	execute_native_op(NATIVE_OP_field::extract(opcode));
362		if (FN_field::test(opcode))
363		pc() = lr();
364		else
365		pc() += 4;
366		break;
367
368	<	default: { // EMUL_OP
369	<	M68kRegisters r68;
198	<	WriteMacInt32(XLM_68K_R25, gpr(25));
199	<	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
200	<	for (int i = 0; i < 8; i++)
201	<	r68.d[i] = gpr(8 + i);
202	<	for (int i = 0; i < 7; i++)
203	<	r68.a[i] = gpr(16 + i);
204	<	r68.a[7] = gpr(1);
205	<	EmulOp(&r68, gpr(24), EMUL_OP_field::extract(opcode) - 3);
206	<	for (int i = 0; i < 8; i++)
207	<	gpr(8 + i) = r68.d[i];
208	<	for (int i = 0; i < 7; i++)
209	<	gpr(16 + i) = r68.a[i];
210	<	gpr(1) = r68.a[7];
211	<	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
368	>	default: // EMUL_OP
369	>	execute_emul_op(EMUL_OP_field::extract(opcode) - 3);
370		pc() += 4;
371		break;
372		}
373	+	}
374	+
375	+	// Compile one instruction
376	+	int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
377	+	{
378	+	#if PPC_ENABLE_JIT
379	+	const instr_info_t *ii = cg_context.instr_info;
380	+	if (ii->mnemo != PPC_I(SHEEP))
381	+	return COMPILE_FAILURE;
382	+
383	+	int status = COMPILE_FAILURE;
384	+	powerpc_dyngen & dg = cg_context.codegen;
385	+	uint32 opcode = cg_context.opcode;
386	+
387	+	switch (opcode & 0x3f) {
388	+	case 0: // EMUL_RETURN
389	+	dg.gen_invoke(QuitEmulator);
390	+	status = COMPILE_CODE_OK;
391	+	break;
392	+
393	+	case 1: // EXEC_RETURN
394	+	dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN);
395	+	// Don't check for pending interrupts, we do know we have to
396	+	// get out of this block ASAP
397	+	dg.gen_exec_return();
398	+	status = COMPILE_EPILOGUE_OK;
399	+	break;
400	+
401	+	case 2: { // EXEC_NATIVE
402	+	uint32 selector = NATIVE_OP_field::extract(opcode);
403	+	switch (selector) {
404	+	#if !PPC_REENTRANT_JIT
405	+	// Filter out functions that may invoke Execute68k() or
406	+	// CallMacOS(), this would break reentrancy as they could
407	+	// invalidate the translation cache and even overwrite
408	+	// continuation code when we are done with them.
409	+	case NATIVE_PATCH_NAME_REGISTRY:
410	+	dg.gen_invoke(DoPatchNameRegistry);
411	+	status = COMPILE_CODE_OK;
412	+	break;
413	+	case NATIVE_VIDEO_INSTALL_ACCEL:
414	+	dg.gen_invoke(VideoInstallAccel);
415	+	status = COMPILE_CODE_OK;
416	+	break;
417	+	case NATIVE_VIDEO_VBL:
418	+	dg.gen_invoke(VideoVBL);
419	+	status = COMPILE_CODE_OK;
420	+	break;
421	+	case NATIVE_GET_RESOURCE:
422	+	case NATIVE_GET_1_RESOURCE:
423	+	case NATIVE_GET_IND_RESOURCE:
424	+	case NATIVE_GET_1_IND_RESOURCE:
425	+	case NATIVE_R_GET_RESOURCE: {
426	+	static const uint32 get_resource_ptr[] = {
427	+	XLM_GET_RESOURCE,
428	+	XLM_GET_1_RESOURCE,
429	+	XLM_GET_IND_RESOURCE,
430	+	XLM_GET_1_IND_RESOURCE,
431	+	XLM_R_GET_RESOURCE
432	+	};
433	+	uint32 old_get_resource = ReadMacInt32(get_resource_ptr[selector - NATIVE_GET_RESOURCE]);
434	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
435	+	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::get_resource).ptr();
436	+	dg.gen_invoke_CPU_im(func, old_get_resource);
437	+	status = COMPILE_CODE_OK;
438	+	break;
439	+	}
440	+	case NATIVE_CHECK_LOAD_INVOC:
441	+	dg.gen_load_T0_GPR(3);
442	+	dg.gen_load_T1_GPR(4);
443	+	dg.gen_se_16_32_T1();
444	+	dg.gen_load_T2_GPR(5);
445	+	dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc);
446	+	status = COMPILE_CODE_OK;
447	+	break;
448	+	#endif
449	+	case NATIVE_BITBLT:
450	+	dg.gen_load_T0_GPR(3);
451	+	dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
452	+	status = COMPILE_CODE_OK;
453	+	break;
454	+	case NATIVE_INVRECT:
455	+	dg.gen_load_T0_GPR(3);
456	+	dg.gen_invoke_T0((void (*)(uint32))NQD_invrect);
457	+	status = COMPILE_CODE_OK;
458	+	break;
459	+	case NATIVE_FILLRECT:
460	+	dg.gen_load_T0_GPR(3);
461	+	dg.gen_invoke_T0((void (*)(uint32))NQD_fillrect);
462	+	status = COMPILE_CODE_OK;
463	+	break;
464	+	}
465	+	// Could we fully translate this NativeOp?
466	+	if (status == COMPILE_CODE_OK) {
467	+	if (!FN_field::test(opcode))
468	+	cg_context.done_compile = false;
469	+	else {
470	+	dg.gen_load_A0_LR();
471	+	dg.gen_set_PC_A0();
472	+	cg_context.done_compile = true;
473	+	}
474	+	break;
475	+	}
476	+	#if PPC_REENTRANT_JIT
477	+	// Try to execute NativeOp trampoline
478	+	if (!FN_field::test(opcode))
479	+	dg.gen_set_PC_im(cg_context.pc + 4);
480	+	else {
481	+	dg.gen_load_A0_LR();
482	+	dg.gen_set_PC_A0();
483	+	}
484	+	dg.gen_mov_32_T0_im(selector);
485	+	dg.gen_jmp(native_op_trampoline);
486	+	cg_context.done_compile = true;
487	+	status = COMPILE_EPILOGUE_OK;
488	+	break;
489	+	#endif
490	+	// Invoke NativeOp handler
491	+	if (!FN_field::test(opcode)) {
492	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
493	+	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
494	+	dg.gen_invoke_CPU_im(func, selector);
495	+	cg_context.done_compile = false;
496	+	status = COMPILE_CODE_OK;
497	+	}
498	+	// Otherwise, let it generate a call to execute_sheep() which
499	+	// will cause necessary updates to the program counter
500	+	break;
501		}
502	+
503	+	default: { // EMUL_OP
504	+	uint32 emul_op = EMUL_OP_field::extract(opcode) - 3;
505	+	#if ENABLE_NATIVE_EMUL_OP
506	+	typedef void (*emul_op_func_t)(dyngen_cpu_base);
507	+	emul_op_func_t emul_op_func = 0;
508	+	switch (emul_op) {
509	+	case OP_MICROSECONDS:
510	+	emul_op_func = (emul_op_func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op_microseconds).ptr();
511	+	break;
512	+	case OP_IDLE_TIME:
513	+	emul_op_func = (emul_op_func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op_idle_time_1).ptr();
514	+	break;
515	+	case OP_IDLE_TIME_2:
516	+	emul_op_func = (emul_op_func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op_idle_time_2).ptr();
517	+	break;
518	+	}
519	+	if (emul_op_func) {
520	+	dg.gen_invoke_CPU(emul_op_func);
521	+	cg_context.done_compile = false;
522	+	status = COMPILE_CODE_OK;
523	+	break;
524	+	}
525	+	#endif
526	+	#if PPC_REENTRANT_JIT
527	+	// Try to execute EmulOp trampoline
528	+	dg.gen_set_PC_im(cg_context.pc + 4);
529	+	dg.gen_mov_32_T0_im(emul_op);
530	+	dg.gen_jmp(emul_op_trampoline);
531	+	cg_context.done_compile = true;
532	+	status = COMPILE_EPILOGUE_OK;
533	+	break;
534	+	#endif
535	+	// Invoke EmulOp handler
536	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
537	+	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
538	+	dg.gen_invoke_CPU_im(func, emul_op);
539	+	cg_context.done_compile = false;
540	+	status = COMPILE_CODE_OK;
541	+	break;
542	+	}
543	+	}
544	+	return status;
545	+	#endif
546	+	return COMPILE_FAILURE;
547	+	}
548	+
549	+	// CPU context to preserve on interrupt
550	+	sheepshaver_cpu::interrupt_context::interrupt_context(sheepshaver_cpu _cpu, const char _where)
551	+	{
552	+	#if SAFE_INTERRUPT_PPC >= 2
553	+	cpu = _cpu;
554	+	where = _where;
555	+
556	+	// Save interrupt context
557	+	memcpy(&gpr[0], &cpu->gpr(0), sizeof(gpr));
558	+	pc = cpu->pc();
559	+	lr = cpu->lr();
560	+	ctr = cpu->ctr();
561	+	cr = cpu->get_cr();
562	+	xer = cpu->get_xer();
563	+	#endif
564		}
565
566	<	// Execution loop
219	<	void sheepshaver_cpu::execute(uint32 entry, bool enable_cache)
566	>	sheepshaver_cpu::interrupt_context::~interrupt_context()
567		{
568	<	powerpc_cpu::execute(entry, enable_cache);
568	>	#if SAFE_INTERRUPT_PPC >= 2
569	>	// Check whether CPU context was preserved by interrupt
570	>	if (memcmp(&gpr[0], &cpu->gpr(0), sizeof(gpr)) != 0) {
571	>	printf("FATAL: %s: interrupt clobbers registers\n", where);
572	>	for (int i = 0; i < 32; i++)
573	>	if (gpr[i] != cpu->gpr(i))
574	>	printf(" r%d: %08x -> %08x\n", i, gpr[i], cpu->gpr(i));
575	>	}
576	>	if (pc != cpu->pc())
577	>	printf("FATAL: %s: interrupt clobbers PC\n", where);
578	>	if (lr != cpu->lr())
579	>	printf("FATAL: %s: interrupt clobbers LR\n", where);
580	>	if (ctr != cpu->ctr())
581	>	printf("FATAL: %s: interrupt clobbers CTR\n", where);
582	>	if (cr != cpu->get_cr())
583	>	printf("FATAL: %s: interrupt clobbers CR\n", where);
584	>	if (xer != cpu->get_xer())
585	>	printf("FATAL: %s: interrupt clobbers XER\n", where);
586	>	#endif
587		}
588
589		// Handle MacOS interrupt
590		void sheepshaver_cpu::interrupt(uint32 entry)
591		{
592	<	#if !MULTICORE_CPU
592	>	#if EMUL_TIME_STATS
593	>	ppc_interrupt_count++;
594	>	const clock_t interrupt_start = clock();
595	>	#endif
596	>
597	>	#if SAFE_INTERRUPT_PPC
598	>	static int depth = 0;
599	>	if (depth != 0)
600	>	printf("FATAL: sheepshaver_cpu::interrupt() called more than once: %d\n", depth);
601	>	depth++;
602	>	#endif
603	>
604		// Save program counters and branch registers
605		uint32 saved_pc = pc();
606		uint32 saved_lr = lr();
607		uint32 saved_ctr= ctr();
608		uint32 saved_sp = gpr(1);
233	–	#endif
609
610		// Initialize stack pointer to SheepShaver alternate stack base
611	<	gpr(1) = SheepStack1Base - 64;
611	>	gpr(1) = SignalStackBase() - 64;
612
613		// Build trampoline to return from interrupt
614	<	uint32 trampoline[] = { htonl(POWERPC_EMUL_OP \| 1) };
614	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
615
616		// Prepare registers for nanokernel interrupt routine
617		kernel_data->v[0x004 >> 2] = htonl(gpr(1));
#	Line 255 \| Line 630 \| void sheepshaver_cpu::interrupt(uint32 e
630		gpr(1) = KernelDataAddr;
631		gpr(7) = ntohl(kernel_data->v[0x660 >> 2]);
632		gpr(8) = 0;
633	<	gpr(10) = (uint32)trampoline;
634	<	gpr(12) = (uint32)trampoline;
633	>	gpr(10) = trampoline.addr();
634	>	gpr(12) = trampoline.addr();
635		gpr(13) = get_cr();
636
637		// rlwimi. r7,r7,8,0,0
#	Line 270 \| Line 645 \| void sheepshaver_cpu::interrupt(uint32 e
645		// Enter nanokernel
646		execute(entry);
647
273	–	#if !MULTICORE_CPU
648		// Restore program counters and branch registers
649		pc() = saved_pc;
650		lr() = saved_lr;
651		ctr()= saved_ctr;
652		gpr(1) = saved_sp;
653	+
654	+	#if EMUL_TIME_STATS
655	+	interrupt_time += (clock() - interrupt_start);
656	+	#endif
657	+
658	+	#if SAFE_INTERRUPT_PPC
659	+	depth--;
660		#endif
661		}
662
663		// Execute 68k routine
664		void sheepshaver_cpu::execute_68k(uint32 entry, M68kRegisters *r)
665		{
666	+	#if EMUL_TIME_STATS
667	+	exec68k_count++;
668	+	const clock_t exec68k_start = clock();
669	+	#endif
670	+
671		#if SAFE_EXEC_68K
672		if (ReadMacInt32(XLM_RUN_MODE) != MODE_EMUL_OP)
673		printf("FATAL: Execute68k() not called from EMUL_OP mode\n");
#	Line 364 \| Line 750 \| void sheepshaver_cpu::execute_68k(uint32
750		lr() = saved_lr;
751		ctr()= saved_ctr;
752		set_cr(saved_cr);
753	+
754	+	#if EMUL_TIME_STATS
755	+	exec68k_time += (clock() - exec68k_start);
756	+	#endif
757		}
758
759		// Call MacOS PPC code
760		uint32 sheepshaver_cpu::execute_macos_code(uint32 tvect, int nargs, uint32 const *args)
761		{
762	+	#if EMUL_TIME_STATS
763	+	macos_exec_count++;
764	+	const clock_t macos_exec_start = clock();
765	+	#endif
766	+
767		// Save program counters and branch registers
768		uint32 saved_pc = pc();
769		uint32 saved_lr = lr();
770		uint32 saved_ctr= ctr();
771
772		// Build trampoline with EXEC_RETURN
773	<	uint32 trampoline[] = { htonl(POWERPC_EMUL_OP \| 1) };
774	<	lr() = (uint32)trampoline;
773	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
774	>	lr() = trampoline.addr();
775
776		gpr(1) -= 64; // Create stack frame
777		uint32 proc = ReadMacInt32(tvect); // Get routine address
#	Line 407 \| Line 802 \| uint32 sheepshaver_cpu::execute_macos_co
802		lr() = saved_lr;
803		ctr()= saved_ctr;
804
805	+	#if EMUL_TIME_STATS
806	+	macos_exec_time += (clock() - macos_exec_start);
807	+	#endif
808	+
809		return retval;
810		}
811
#	Line 416 \| Line 815 \| inline void sheepshaver_cpu::execute_ppc
815		// Save branch registers
816		uint32 saved_lr = lr();
817
818	<	const uint32 trampoline[] = { htonl(POWERPC_EMUL_OP \| 1) };
819	<	lr() = (uint32)trampoline;
818	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
819	>	WriteMacInt32(trampoline.addr(), POWERPC_EXEC_RETURN);
820	>	lr() = trampoline.addr();
821
822		execute(entry);
823
#	Line 426 \| Line 826 \| inline void sheepshaver_cpu::execute_ppc
826		}
827
828		// Resource Manager thunk
429	–	extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h);
430	–
829		inline void sheepshaver_cpu::get_resource(uint32 old_get_resource)
830		{
831		uint32 type = gpr(3);
#	Line 453 \| Line 851 \| inline void sheepshaver_cpu::get_resourc
851		* SheepShaver CPU engine interface
852		**/
853
854	<	static sheepshaver_cpu *main_cpu = NULL; // CPU emulator to handle usual control flow
855	<	static sheepshaver_cpu *interrupt_cpu = NULL; // CPU emulator to handle interrupts
458	<	static sheepshaver_cpu *current_cpu = NULL; // Current CPU emulator context
854	>	// PowerPC CPU emulator
855	>	static sheepshaver_cpu *ppc_cpu = NULL;
856
857		void FlushCodeCache(uintptr start, uintptr end)
858		{
859		D(bug("FlushCodeCache(%08x, %08x)\n", start, end));
860	<	main_cpu->invalidate_cache_range(start, end);
464	<	#if MULTICORE_CPU
465	<	interrupt_cpu->invalidate_cache_range(start, end);
466	<	#endif
467	<	}
468	<
469	<	static inline void cpu_push(sheepshaver_cpu *new_cpu)
470	<	{
471	<	#if MULTICORE_CPU
472	<	current_cpu = new_cpu;
473	<	#endif
474	<	}
475	<
476	<	static inline void cpu_pop()
477	<	{
478	<	#if MULTICORE_CPU
479	<	current_cpu = main_cpu;
480	<	#endif
860	>	ppc_cpu->invalidate_cache_range(start, end);
861		}
862
863		// Dump PPC registers
864		static void dump_registers(void)
865		{
866	<	current_cpu->dump_registers();
866	>	ppc_cpu->dump_registers();
867		}
868
869		// Dump log
870		static void dump_log(void)
871		{
872	<	current_cpu->dump_log();
872	>	ppc_cpu->dump_log();
873		}
874
875		/*
#	Line 511 \| Line 891 \| static sigsegv_return_t sigsegv_handler(
891		if ((addr - ROM_BASE) < ROM_SIZE)
892		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
893
894	<	// Ignore all other faults, if requested
895	<	if (PrefsFindBool("ignoresegv"))
896	<	return SIGSEGV_RETURN_FAILURE;
894	>	// Get program counter of target CPU
895	>	sheepshaver_cpu * const cpu = ppc_cpu;
896	>	const uint32 pc = cpu->pc();
897	>
898	>	// Fault in Mac ROM or RAM?
899	>	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));
900	>	if (mac_fault) {
901	>
902	>	// "VM settings" during MacOS 8 installation
903	>	if (pc == ROM_BASE + 0x488160 && cpu->gpr(20) == 0xf8000000)
904	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
905	>
906	>	// MacOS 8.5 installation
907	>	else if (pc == ROM_BASE + 0x488140 && cpu->gpr(16) == 0xf8000000)
908	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
909	>
910	>	// MacOS 8 serial drivers on startup
911	>	else if (pc == ROM_BASE + 0x48e080 && (cpu->gpr(8) == 0xf3012002 \|\| cpu->gpr(8) == 0xf3012000))
912	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
913	>
914	>	// MacOS 8.1 serial drivers on startup
915	>	else if (pc == ROM_BASE + 0x48c5e0 && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
916	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
917	>	else if (pc == ROM_BASE + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
918	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
919	>
920	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
921	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(16) == 0xf3012002 \|\| cpu->gpr(16) == 0xf3012000))
922	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
923	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
924	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
925	>
926	>	// Ignore writes to the zero page
927	>	else if ((uint32)(addr - SheepMem::ZeroPage()) < (uint32)SheepMem::PageSize())
928	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
929	>
930	>	// Ignore all other faults, if requested
931	>	if (PrefsFindBool("ignoresegv"))
932	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
933	>	}
934		#else
935		#error "FIXME: You don't have the capability to skip instruction within signal handlers"
936		#endif
#	Line 521 \| Line 938 \| static sigsegv_return_t sigsegv_handler(
938		printf("SIGSEGV\n");
939		printf(" pc %p\n", fault_instruction);
940		printf(" ea %p\n", fault_address);
524	–	printf(" cpu %s\n", current_cpu == main_cpu ? "main" : "interrupts");
941		dump_registers();
942	<	current_cpu->dump_log();
942	>	ppc_cpu->dump_log();
943		enter_mon();
944		QuitEmulator();
945
#	Line 533 \| Line 949 \| static sigsegv_return_t sigsegv_handler(
949		void init_emul_ppc(void)
950		{
951		// Initialize main CPU emulator
952	<	main_cpu = new sheepshaver_cpu();
953	<	main_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
952	>	ppc_cpu = new sheepshaver_cpu();
953	>	ppc_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
954	>	ppc_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
955		WriteMacInt32(XLM_RUN_MODE, MODE_68K);
956
540	–	#if MULTICORE_CPU
541	–	// Initialize alternate CPU emulator to handle interrupts
542	–	interrupt_cpu = new sheepshaver_cpu();
543	–	#endif
544	–
957		// Install the handler for SIGSEGV
958		sigsegv_install_handler(sigsegv_handler);
959
#	Line 550 \| Line 962 \| void init_emul_ppc(void)
962		mon_add_command("regs", dump_registers, "regs Dump PowerPC registers\n");
963		mon_add_command("log", dump_log, "log Dump PowerPC emulation log\n");
964		#endif
965	+
966	+	#if EMUL_TIME_STATS
967	+	emul_start_time = clock();
968	+	#endif
969		}
970
971		/*
#	Line 558 \| Line 974 \| void init_emul_ppc(void)
974
975		void exit_emul_ppc(void)
976		{
977	<	delete main_cpu;
978	<	#if MULTICORE_CPU
979	<	delete interrupt_cpu;
980	<	#endif
977	>	#if EMUL_TIME_STATS
978	>	clock_t emul_end_time = clock();
979	>
980	>	printf("### Statistics for SheepShaver emulation parts\n");
981	>	const clock_t emul_time = emul_end_time - emul_start_time;
982	>	printf("Total emulation time : %.1f sec\n", double(emul_time) / double(CLOCKS_PER_SEC));
983	>	printf("Total interrupt count: %d (%2.1f Hz)\n", interrupt_count,
984	>	(double(interrupt_count) * CLOCKS_PER_SEC) / double(emul_time));
985	>	printf("Total ppc interrupt count: %d (%2.1f %%)\n", ppc_interrupt_count,
986	>	(double(ppc_interrupt_count) * 100.0) / double(interrupt_count));
987	>
988	>	#define PRINT_STATS(LABEL, VAR_PREFIX) do { \
989	>	printf("Total " LABEL " count : %d\n", VAR_PREFIX##_count); \
990	>	printf("Total " LABEL " time : %.1f sec (%.1f%%)\n", \
991	>	double(VAR_PREFIX##_time) / double(CLOCKS_PER_SEC), \
992	>	100.0 * double(VAR_PREFIX##_time) / double(emul_time)); \
993	>	} while (0)
994	>
995	>	PRINT_STATS("Execute68k[Trap] execution", exec68k);
996	>	PRINT_STATS("NativeOp execution", native_exec);
997	>	PRINT_STATS("MacOS routine execution", macos_exec);
998	>
999	>	#undef PRINT_STATS
1000	>	printf("\n");
1001	>	#endif
1002	>
1003	>	delete ppc_cpu;
1004	>	}
1005	>
1006	>	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
1007	>	// Initialize EmulOp trampolines
1008	>	void init_emul_op_trampolines(basic_dyngen & dg)
1009	>	{
1010	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
1011	>	func_t func;
1012	>
1013	>	// EmulOp
1014	>	emul_op_trampoline = dg.gen_start();
1015	>	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
1016	>	dg.gen_invoke_CPU_T0(func);
1017	>	dg.gen_exec_return();
1018	>	dg.gen_end();
1019	>
1020	>	// NativeOp
1021	>	native_op_trampoline = dg.gen_start();
1022	>	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
1023	>	dg.gen_invoke_CPU_T0(func);
1024	>	dg.gen_exec_return();
1025	>	dg.gen_end();
1026	>
1027	>	D(bug("EmulOp trampoline: %p\n", emul_op_trampoline));
1028	>	D(bug("NativeOp trampoline: %p\n", native_op_trampoline));
1029		}
1030	+	#endif
1031
1032		/*
1033		* Emulation loop
#	Line 570 \| Line 1035 \| void exit_emul_ppc(void)
1035
1036		void emul_ppc(uint32 entry)
1037		{
1038	<	current_cpu = main_cpu;
1039	<	#if DEBUG
575	<	current_cpu->start_log();
1038	>	#if 0
1039	>	ppc_cpu->start_log();
1040		#endif
1041		// start emulation loop and enable code translation or caching
1042	<	current_cpu->execute(entry, true);
1042	>	ppc_cpu->execute(entry);
1043		}
1044
1045		/*
1046		* Handle PowerPC interrupt
1047		*/
1048
585	–	#if ASYNC_IRQ
586	–	void HandleInterrupt(void)
587	–	{
588	–	main_cpu->handle_interrupt();
589	–	}
590	–	#else
1049		void TriggerInterrupt(void)
1050		{
1051		#if 0
1052		WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
1053		#else
1054		// Trigger interrupt to main cpu only
1055	<	if (main_cpu)
1056	<	main_cpu->trigger_interrupt();
1055	>	if (ppc_cpu)
1056	>	ppc_cpu->trigger_interrupt();
1057		#endif
1058		}
601	–	#endif
1059
1060		void sheepshaver_cpu::handle_interrupt(void)
1061		{
#	Line 606 \| Line 1063 \| void sheepshaver_cpu::handle_interrupt(v
1063		if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
1064		return;
1065
1066	<	// Do nothing if there is no interrupt pending
1067	<	if (InterruptFlags == 0)
1068	<	return;
1066	>	// Current interrupt nest level
1067	>	static int interrupt_depth = 0;
1068	>	++interrupt_depth;
1069	>	#if EMUL_TIME_STATS
1070	>	interrupt_count++;
1071	>	#endif
1072
1073		// Disable MacOS stack sniffer
1074		WriteMacInt32(0x110, 0);
#	Line 617 \| Line 1077 \| void sheepshaver_cpu::handle_interrupt(v
1077		switch (ReadMacInt32(XLM_RUN_MODE)) {
1078		case MODE_68K:
1079		// 68k emulator active, trigger 68k interrupt level 1
620	–	assert(current_cpu == main_cpu);
1080		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
1081		set_cr(get_cr() \| tswap32(kernel_data->v[0x674 >> 2]));
1082		break;
#	Line 625 \| Line 1084 \| void sheepshaver_cpu::handle_interrupt(v
1084		#if INTERRUPTS_IN_NATIVE_MODE
1085		case MODE_NATIVE:
1086		// 68k emulator inactive, in nanokernel?
1087	<	assert(current_cpu == main_cpu);
1088	<	if (gpr(1) != KernelDataAddr) {
1087	>	if (gpr(1) != KernelDataAddr && interrupt_depth == 1) {
1088	>	interrupt_context ctx(this, "PowerPC mode");
1089	>
1090		// Prepare for 68k interrupt level 1
1091		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
1092		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 635 \| Line 1095 \| void sheepshaver_cpu::handle_interrupt(v
1095
1096		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
1097		DisableInterrupt();
638	–	cpu_push(interrupt_cpu);
1098		if (ROMType == ROMTYPE_NEWWORLD)
1099	<	current_cpu->interrupt(ROM_BASE + 0x312b1c);
1099	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
1100		else
1101	<	current_cpu->interrupt(ROM_BASE + 0x312a3c);
643	<	cpu_pop();
1101	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
1102		}
1103		break;
1104		#endif
#	Line 649 \| Line 1107 \| void sheepshaver_cpu::handle_interrupt(v
1107		case MODE_EMUL_OP:
1108		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
1109		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1110	+	interrupt_context ctx(this, "68k mode");
1111	+	#if EMUL_TIME_STATS
1112	+	const clock_t interrupt_start = clock();
1113	+	#endif
1114		#if 1
1115		// Execute full 68k interrupt routine
1116		M68kRegisters r;
#	Line 670 \| Line 1132 \| void sheepshaver_cpu::handle_interrupt(v
1132		if (InterruptFlags & INTFLAG_VIA) {
1133		ClearInterruptFlag(INTFLAG_VIA);
1134		ADBInterrupt();
1135	<	ExecutePPC(VideoVBL);
1135	>	ExecuteNative(NATIVE_VIDEO_VBL);
1136		}
1137		}
1138		#endif
1139	+	#if EMUL_TIME_STATS
1140	+	interrupt_time += (clock() - interrupt_start);
1141	+	#endif
1142		}
1143		break;
1144		#endif
1145		}
681	–	}
682	–
683	–	/*
684	–	* Execute NATIVE_OP opcode (called by PowerPC emulator)
685	–	*/
1146
1147	<	#define POWERPC_NATIVE_OP_INIT(LR, OP) \
1148	<	tswap32(POWERPC_EMUL_OP \| ((LR) << 11) \| (((uint32)OP) << 6) \| 2)
1149	<
690	<	// FIXME: Make sure 32-bit relocations are used
691	<	const uint32 NativeOpTable[NATIVE_OP_MAX] = {
692	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_PATCH_NAME_REGISTRY),
693	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_INSTALL_ACCEL),
694	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_VBL),
695	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_DO_DRIVER_IO),
696	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_IRQ),
697	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_INIT),
698	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_TERM),
699	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_OPEN),
700	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_CLOSE),
701	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_WPUT),
702	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_RSRV),
703	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_NOTHING),
704	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_OPEN),
705	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_IN),
706	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_OUT),
707	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CONTROL),
708	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_STATUS),
709	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CLOSE),
710	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_RESOURCE),
711	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_RESOURCE),
712	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_IND_RESOURCE),
713	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_IND_RESOURCE),
714	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_R_GET_RESOURCE),
715	<	POWERPC_NATIVE_OP_INIT(0, NATIVE_DISABLE_INTERRUPT),
716	<	POWERPC_NATIVE_OP_INIT(0, NATIVE_ENABLE_INTERRUPT),
717	<	POWERPC_NATIVE_OP_INIT(1, NATIVE_MAKE_EXECUTABLE),
718	<	};
1147	>	// We are done with this interrupt
1148	>	--interrupt_depth;
1149	>	}
1150
1151		static void get_resource(void);
1152		static void get_1_resource(void);
#	Line 723 \| Line 1154 \| static void get_ind_resource(void);
1154		static void get_1_ind_resource(void);
1155		static void r_get_resource(void);
1156
1157	<	#define GPR(REG) current_cpu->gpr(REG)
1158	<
728	<	static void NativeOp(int selector)
1157	>	// Execute NATIVE_OP routine
1158	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
1159		{
1160	+	#if EMUL_TIME_STATS
1161	+	native_exec_count++;
1162	+	const clock_t native_exec_start = clock();
1163	+	#endif
1164	+
1165		switch (selector) {
1166		case NATIVE_PATCH_NAME_REGISTRY:
1167		DoPatchNameRegistry();
#	Line 738 \| Line 1173 \| static void NativeOp(int selector)
1173		VideoVBL();
1174		break;
1175		case NATIVE_VIDEO_DO_DRIVER_IO:
1176	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void )GPR(3), (void )GPR(4),
1177	<	(void *)GPR(5), GPR(6), GPR(7));
1176	>	gpr(3) = (int32)(int16)VideoDoDriverIO((void )gpr(3), (void )gpr(4),
1177	>	(void *)gpr(5), gpr(6), gpr(7));
1178		break;
1179	<	case NATIVE_GET_RESOURCE:
1180	<	get_resource();
1179	>	#ifdef WORDS_BIGENDIAN
1180	>	case NATIVE_ETHER_IRQ:
1181	>	EtherIRQ();
1182		break;
1183	<	case NATIVE_GET_1_RESOURCE:
1184	<	get_1_resource();
1183	>	case NATIVE_ETHER_INIT:
1184	>	gpr(3) = InitStreamModule((void *)gpr(3));
1185		break;
1186	<	case NATIVE_GET_IND_RESOURCE:
1187	<	get_ind_resource();
1186	>	case NATIVE_ETHER_TERM:
1187	>	TerminateStreamModule();
1188		break;
1189	<	case NATIVE_GET_1_IND_RESOURCE:
1190	<	get_1_ind_resource();
1189	>	case NATIVE_ETHER_OPEN:
1190	>	gpr(3) = ether_open((queue_t )gpr(3), (void )gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1191	>	break;
1192	>	case NATIVE_ETHER_CLOSE:
1193	>	gpr(3) = ether_close((queue_t )gpr(3), gpr(4), (void )gpr(5));
1194	>	break;
1195	>	case NATIVE_ETHER_WPUT:
1196	>	gpr(3) = ether_wput((queue_t )gpr(3), (mblk_t )gpr(4));
1197		break;
1198	<	case NATIVE_R_GET_RESOURCE:
1199	<	r_get_resource();
1198	>	case NATIVE_ETHER_RSRV:
1199	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1200	>	break;
1201	>	#else
1202	>	case NATIVE_ETHER_INIT:
1203	>	// FIXME: needs more complicated thunks
1204	>	gpr(3) = false;
1205	>	break;
1206	>	#endif
1207	>	case NATIVE_SYNC_HOOK:
1208	>	gpr(3) = NQD_sync_hook(gpr(3));
1209	>	break;
1210	>	case NATIVE_BITBLT_HOOK:
1211	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1212	>	break;
1213	>	case NATIVE_BITBLT:
1214	>	NQD_bitblt(gpr(3));
1215	>	break;
1216	>	case NATIVE_FILLRECT_HOOK:
1217	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1218	>	break;
1219	>	case NATIVE_INVRECT:
1220	>	NQD_invrect(gpr(3));
1221	>	break;
1222	>	case NATIVE_FILLRECT:
1223	>	NQD_fillrect(gpr(3));
1224		break;
1225		case NATIVE_SERIAL_NOTHING:
1226		case NATIVE_SERIAL_OPEN:
#	Line 773 \| Line 1239 \| static void NativeOp(int selector)
1239		SerialStatus,
1240		SerialClose
1241		};
1242	<	GPR(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](GPR(3), GPR(4));
1242	>	gpr(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](gpr(3), gpr(4));
1243		break;
1244		}
1245	<	case NATIVE_DISABLE_INTERRUPT:
1246	<	DisableInterrupt();
1247	<	break;
1248	<	case NATIVE_ENABLE_INTERRUPT:
1249	<	EnableInterrupt();
1245	>	case NATIVE_GET_RESOURCE:
1246	>	case NATIVE_GET_1_RESOURCE:
1247	>	case NATIVE_GET_IND_RESOURCE:
1248	>	case NATIVE_GET_1_IND_RESOURCE:
1249	>	case NATIVE_R_GET_RESOURCE: {
1250	>	typedef void (*GetResourceCallback)(void);
1251	>	static const GetResourceCallback get_resource_callbacks[] = {
1252	>	::get_resource,
1253	>	::get_1_resource,
1254	>	::get_ind_resource,
1255	>	::get_1_ind_resource,
1256	>	::r_get_resource
1257	>	};
1258	>	get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1259		break;
1260	+	}
1261		case NATIVE_MAKE_EXECUTABLE:
1262	<	MakeExecutable(0, (void *)GPR(4), GPR(5));
1262	>	MakeExecutable(0, (void *)gpr(4), gpr(5));
1263	>	break;
1264	>	case NATIVE_CHECK_LOAD_INVOC:
1265	>	check_load_invoc(gpr(3), gpr(4), gpr(5));
1266		break;
1267		default:
1268		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
1269		QuitEmulator();
1270		break;
1271		}
793	–	}
1272
1273	<	/*
1274	<	* Execute native subroutine (LR must contain return address)
1275	<	*/
798	<
799	<	void ExecuteNative(int selector)
800	<	{
801	<	uint32 tvect[2];
802	<	tvect[0] = tswap32(POWERPC_NATIVE_OP_FUNC(selector));
803	<	tvect[1] = 0; // Fake TVECT
804	<	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
805	<	M68kRegisters r;
806	<	Execute68k((uint32)&desc, &r);
1273	>	#if EMUL_TIME_STATS
1274	>	native_exec_time += (clock() - native_exec_start);
1275	>	#endif
1276		}
1277
1278		/*
#	Line 814 \| Line 1283 \| void ExecuteNative(int selector)
1283
1284		void Execute68k(uint32 pc, M68kRegisters *r)
1285		{
1286	<	current_cpu->execute_68k(pc, r);
1286	>	ppc_cpu->execute_68k(pc, r);
1287		}
1288
1289		/*
#	Line 824 \| Line 1293 \| void Execute68k(uint32 pc, M68kRegisters
1293
1294		void Execute68kTrap(uint16 trap, M68kRegisters *r)
1295		{
1296	<	uint16 proc[2];
1297	<	proc[0] = htons(trap);
1298	<	proc[1] = htons(M68K_RTS);
1299	<	Execute68k((uint32)proc, r);
1296	>	SheepVar proc_var(4);
1297	>	uint32 proc = proc_var.addr();
1298	>	WriteMacInt16(proc, trap);
1299	>	WriteMacInt16(proc + 2, M68K_RTS);
1300	>	Execute68k(proc, r);
1301		}
1302
1303		/*
#	Line 836 \| Line 1306 \| void Execute68kTrap(uint16 trap, M68kReg
1306
1307		uint32 call_macos(uint32 tvect)
1308		{
1309	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1309	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1310		}
1311
1312		uint32 call_macos1(uint32 tvect, uint32 arg1)
1313		{
1314		const uint32 args[] = { arg1 };
1315	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1315	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1316		}
1317
1318		uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1319		{
1320		const uint32 args[] = { arg1, arg2 };
1321	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1321	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1322		}
1323
1324		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1325		{
1326		const uint32 args[] = { arg1, arg2, arg3 };
1327	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1327	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1328		}
1329
1330		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1331		{
1332		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1333	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1333	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1334		}
1335
1336		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1337		{
1338		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1339	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1339	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1340		}
1341
1342		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1343		{
1344		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1345	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1345	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1346		}
1347
1348		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1349		{
1350		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1351	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1351	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1352		}
1353
1354		/*
#	Line 887 \| Line 1357 \| uint32 call_macos7(uint32 tvect, uint32
1357
1358		void get_resource(void)
1359		{
1360	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1360	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1361		}
1362
1363		void get_1_resource(void)
1364		{
1365	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1365	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1366		}
1367
1368		void get_ind_resource(void)
1369		{
1370	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1370	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1371		}
1372
1373		void get_1_ind_resource(void)
1374		{
1375	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1375	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1376		}
1377
1378		void r_get_resource(void)
1379		{
1380	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1380	>	ppc_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1381		}

Diff Legend

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+Removed lines
-+
+Added lines
-<
+Changed lines
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+Changed lines

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents): Revision 1.14 by gbeauche, 2003-11-03T21:28:29Z vs. Revision 1.46 by gbeauche, 2004-06-22T17:10:08Z

Diff Legend

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.14 by gbeauche, 2003-11-03T21:28:29Z vs.
Revision 1.46 by gbeauche, 2004-06-22T17:10:08Z