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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.2 by gbeauche, 2003-09-28T21:27:34Z 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 21 | Line 21
21		#include "sysdeps.h"
22		#include "cpu_emulation.h"
23		#include "main.h"
24	+	#include "prefs.h"
25		#include "xlowmem.h"
26		#include "emul_op.h"
27		#include "rom_patches.h"
28		#include "macos_util.h"
29		#include "block-alloc.hpp"
30		#include "sigsegv.h"
30	–	#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"
55		#include "mon_disass.h"
56		#endif
57
58	<	#define DEBUG 1
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 55 | Line 84 | static void enter_mon(void)
84		#endif
85		}
86
87	<	// Enable multicore (main/interrupts) cpu emulation?
88	<	#define MULTICORE_CPU 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 70 | Line 105 | static void enter_mon(void)
105		// Interrupts in native mode?
106		#define INTERRUPTS_IN_NATIVE_MODE 1
107
108	<	// 68k Emulator Data
109	<	struct EmulatorData {
75	<	uint32  v[0x400];
76	<	};
108	>	// Pointer to Kernel Data
109	>	static KernelData * kernel_data;
110
111	<	// Kernel Data
112	<	struct KernelData {
80	<	uint32  v[0x400];
81	<	EmulatorData ed;
82	<	};
111	>	// SIGSEGV handler
112	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
113
114	<	// Pointer to Kernel Data
115	<	static KernelData * const kernel_data = (KernelData *)0x68ffe000;
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 99 | Line 141 | class sheepshaver_cpu
141
142		public:
143
144	<	sheepshaver_cpu()
145	<	: powerpc_cpu()
104	<	{ init_decoder(); }
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 pc);
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 119 | 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, sheepshaver_cpu *cpu);
176	>	void interrupt(uint32 entry);
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(); }
134	<	void operator delete(void *p)
135	<	{ allocator_helper< sheepshaver_cpu, lazy_allocator >::deallocate(p); }
136	<	// FIXME: really make surre array allocation fail at link time?
137	<	void *operator new[](size_t);
138	<	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	<	void sheepshaver_cpu::init_decoder()
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	<	#ifndef PPC_NO_STATIC_II_INDEX_TABLE
209	<	static bool initialized = false;
210	<	if (initialized)
211	<	return;
150	<	initialized = true;
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(enable_jit_p())
220	+	{
221	+	init_decoder();
222	+	}
223	+
224	+	void sheepshaver_cpu::init_decoder()
225	+	{
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	<	D_form, 6, 0, CFLOW_TRAP
230	>	PPC_I(SHEEP),
231	>	D_form, 6, 0, CFLOW_JUMP | CFLOW_TRAP
232		}
233		};
234
#	Line 167 | Line 241 | void sheepshaver_cpu::init_decoder()
241		}
242		}
243
170	–	// Forward declaration for native opcode handler
171	–	static void NativeOp(int selector);
172	–
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 191 | Line 286 | void sheepshaver_cpu::execute_sheep(uint
286		case 0:         // EMUL_RETURN
287		QuitEmulator();
288		break;
289	<
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;
209	<	WriteMacInt32(XLM_68K_R25, gpr(25));
210	<	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
211	<	for (int i = 0; i < 8; i++)
212	<	r68.d[i] = gpr(8 + i);
213	<	for (int i = 0; i < 7; i++)
214	<	r68.a[i] = gpr(16 + i);
215	<	r68.a[7] = gpr(1);
216	<	EmulOp(&r68, gpr(24), EMUL_OP_field::extract(opcode) - 3);
217	<	for (int i = 0; i < 8; i++)
218	<	gpr(8 + i) = r68.d[i];
219	<	for (int i = 0; i < 7; i++)
220	<	gpr(16 + i) = r68.a[i];
221	<	gpr(1) = r68.a[7];
222	<	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		}
226	–	}
307		}
308
309	<	// Checks for pending interrupts
310	<	struct execute_nothing {
311	<	static inline void execute(powerpc_cpu *) { }
312	<	};
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	<	static void HandleInterrupt(void);
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	<	struct execute_spcflags_check {
336	<	static inline void execute(powerpc_cpu *cpu) {
337	<	if (SPCFLAGS_TEST(SPCFLAG_ALL_BUT_EXEC_RETURN)) {
338	<	if (SPCFLAGS_TEST( SPCFLAG_ENTER_MON )) {
339	<	SPCFLAGS_CLEAR( SPCFLAG_ENTER_MON );
340	<	enter_mon();
341	<	}
342	<	if (SPCFLAGS_TEST( SPCFLAG_DOINT )) {
343	<	SPCFLAGS_CLEAR( SPCFLAG_DOINT );
344	<	HandleInterrupt();
345	<	}
346	<	if (SPCFLAGS_TEST( SPCFLAG_INT )) {
347	<	SPCFLAGS_CLEAR( SPCFLAG_INT );
348	<	SPCFLAGS_SET( SPCFLAG_DOINT );
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		}
253	–	};
436
437	<	// Execution loop
438	<	void sheepshaver_cpu::execute(uint32 entry)
439	<	{
440	<	try {
441	<	pc() = entry;
442	<	powerpc_cpu::do_execute<execute_nothing, execute_spcflags_check>();
443	<	}
444	<	catch (sheepshaver_exec_return const &) {
445	<	// Nothing, simply return
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		}
265	–	catch (...) {
266	–	printf("ERROR: execute() received an unknown exception!\n");
267	–	QuitEmulator();
456		}
457	+	return status;
458		}
459	+	#endif
460
461		// Handle MacOS interrupt
462	<	void sheepshaver_cpu::interrupt(uint32 entry, sheepshaver_cpu *cpu)
462	>	void sheepshaver_cpu::interrupt(uint32 entry)
463		{
464	<	#if MULTICORE_CPU
465	<	// Initialize stack pointer from previous CPU running
466	<	gpr(1) = cpu->gpr(1);
467	<	#else
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	<	#endif
473	>	uint32 saved_sp = gpr(1);
474
475	<	// Create stack frame
476	<	gpr(1) -= 64;
475	>	// Initialize stack pointer to SheepShaver alternate stack base
476	>	gpr(1) = SignalStackBase() - 64;
477
478		// Build trampoline to return from interrupt
479	<	uint32 trampoline[] = { POWERPC_EMUL_OP | 1 };
479	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
480
481		// Prepare registers for nanokernel interrupt routine
482	<	kernel_data->v[0x004 >> 2] = gpr(1);
483	<	kernel_data->v[0x018 >> 2] = gpr(6);
482	>	kernel_data->v[0x004 >> 2] = htonl(gpr(1));
483	>	kernel_data->v[0x018 >> 2] = htonl(gpr(6));
484
485	<	gpr(6) = kernel_data->v[0x65c >> 2];
485	>	gpr(6) = ntohl(kernel_data->v[0x65c >> 2]);
486		assert(gpr(6) != 0);
487		WriteMacInt32(gpr(6) + 0x13c, gpr(7));
488		WriteMacInt32(gpr(6) + 0x144, gpr(8));
#	Line 302 | Line 493 | void sheepshaver_cpu::interrupt(uint32 e
493		WriteMacInt32(gpr(6) + 0x16c, gpr(13));
494
495		gpr(1)  = KernelDataAddr;
496	<	gpr(7)  = kernel_data->v[0x660 >> 2];
496	>	gpr(7)  = ntohl(kernel_data->v[0x660 >> 2]);
497		gpr(8)  = 0;
498	<	gpr(10) = (uint32)trampoline;
499	<	gpr(12) = (uint32)trampoline;
500	<	gpr(13) = cr().get();
498	>	gpr(10) = trampoline.addr();
499	>	gpr(12) = trampoline.addr();
500	>	gpr(13) = get_cr();
501
502		// rlwimi. r7,r7,8,0,0
503		uint32 result = op_ppc_rlwimi::apply(gpr(7), 8, 0x80000000, gpr(7));
#	Line 314 | Line 505 | void sheepshaver_cpu::interrupt(uint32 e
505		gpr(7) = result;
506
507		gpr(11) = 0xf072; // MSR (SRR1)
508	<	cr().set((gpr(11) & 0x0fff0000) | (cr().get() & ~0x0fff0000));
508	>	cr().set((gpr(11) & 0x0fff0000) | (get_cr() & ~0x0fff0000));
509
510		// Enter nanokernel
511		execute(entry);
512
322	–	// Cleanup stack
323	–	gpr(1) += 64;
324	–
325	–	#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 342 | Line 538 | void sheepshaver_cpu::execute_68k(uint32
538		uint32 saved_pc = pc();
539		uint32 saved_lr = lr();
540		uint32 saved_ctr= ctr();
541	+	uint32 saved_cr = get_cr();
542
543		// Create MacOS stack frame
544	+	// FIXME: make sure MacOS doesn't expect PPC registers to live on top
545		uint32 sp = gpr(1);
546	<	gpr(1) -= 56 + 19*4 + 18*8;
546	>	gpr(1) -= 56;
547		WriteMacInt32(gpr(1), sp);
548
549		// Save PowerPC registers
550	<	memcpy(Mac2HostAddr(gpr(1)+56), &gpr(13), sizeof(uint32)*(32-13));
550	>	uint32 saved_GPRs[19];
551	>	memcpy(&saved_GPRs[0], &gpr(13), sizeof(uint32)*(32-13));
552		#if SAVE_FP_EXEC_68K
553	<	memcpy(Mac2HostAddr(gpr(1)+56+19*4), &fpr(14), sizeof(double)*(32-14));
553	>	double saved_FPRs[18];
554	>	memcpy(&saved_FPRs[0], &fpr(14), sizeof(double)*(32-14));
555		#endif
556
557		// Setup registers for 68k emulator
#	Line 365 | Line 565 | void sheepshaver_cpu::execute_68k(uint32
565		gpr(25) = ReadMacInt32(XLM_68K_R25);            // MSB of SR
566		gpr(26) = 0;
567		gpr(28) = 0;                                                            // VBR
568	<	gpr(29) = kernel_data->ed.v[0x74 >> 2];         // Pointer to opcode table
569	<	gpr(30) = kernel_data->ed.v[0x78 >> 2];         // Address of emulator
568	>	gpr(29) = ntohl(kernel_data->ed.v[0x74 >> 2]);          // Pointer to opcode table
569	>	gpr(30) = ntohl(kernel_data->ed.v[0x78 >> 2]);          // Address of emulator
570		gpr(31) = KernelDataAddr + 0x1000;
571
572		// Push return address (points to EXEC_RETURN opcode) on stack
#	Line 398 | Line 598 | void sheepshaver_cpu::execute_68k(uint32
598		r->a[i] = gpr(16 + i);
599
600		// Restore PowerPC registers
601	<	memcpy(&gpr(13), Mac2HostAddr(gpr(1)+56), sizeof(uint32)*(32-13));
601	>	memcpy(&gpr(13), &saved_GPRs[0], sizeof(uint32)*(32-13));
602		#if SAVE_FP_EXEC_68K
603	<	memcpy(&fpr(14), Mac2HostAddr(gpr(1)+56+19*4), sizeof(double)*(32-14));
603	>	memcpy(&fpr(14), &saved_FPRs[0], sizeof(double)*(32-14));
604		#endif
605
606		// Cleanup stack
607	<	gpr(1) += 56 + 19*4 + 18*8;
607	>	gpr(1) += 56;
608
609		// Restore program counters and branch registers
610		pc() = saved_pc;
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[] = { 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 453 | 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 461 | Line 675 | inline void sheepshaver_cpu::execute_ppc
675		{
676		// Save branch registers
677		uint32 saved_lr = lr();
464	–	uint32 saved_ctr= ctr();
678
679	<	const uint32 trampoline[] = { POWERPC_EMUL_OP | 1 };
679	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
680	>	WriteMacInt32(trampoline.addr(), POWERPC_EXEC_RETURN);
681	>	lr() = trampoline.addr();
682
468	–	lr() = (uint32)trampoline;
469	–	ctr()= entry;
683		execute(entry);
684
685		// Restore branch registers
686		lr() = saved_lr;
474	–	ctr()= saved_ctr;
687		}
688
689		// Resource Manager thunk
478	–	extern "C" void check_load_invoc(uint32 type, int16 id, uint16 **h);
479	–
690		inline void sheepshaver_cpu::get_resource(uint32 old_get_resource)
691		{
692		uint32 type = gpr(3);
#	Line 487 | Line 697 | inline void sheepshaver_cpu::get_resourc
697
698		// Call old routine
699		execute_ppc(old_get_resource);
490	–	uint16 **handle = (uint16 **)gpr(3);
700
701		// Call CheckLoad()
702	+	uint32 handle = gpr(3);
703		check_load_invoc(type, id, handle);
704	<	gpr(3) = (uint32)handle;
704	>	gpr(3) = handle;
705
706		// Cleanup stack
707		gpr(1) += 56;
#	Line 502 | 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
507	<	static sheepshaver_cpu *current_cpu = NULL;             // Current CPU emulator context
508	<
509	<	static inline void cpu_push(sheepshaver_cpu *new_cpu)
510	<	{
511	<	#if MULTICORE_CPU
512	<	current_cpu = new_cpu;
513	<	#endif
514	<	}
715	>	// PowerPC CPU emulator
716	>	static sheepshaver_cpu *ppc_cpu = NULL;
717
718	<	static inline void cpu_pop()
718	>	void FlushCodeCache(uintptr start, uintptr end)
719		{
720	<	#if MULTICORE_CPU
721	<	current_cpu = main_cpu;
520	<	#endif
720	>	D(bug("FlushCodeCache(%08x, %08x)\n", start, end));
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 struct sigaction sigsegv_action;
540	<
541	<	#if defined(__powerpc__)
542	<	#include <sys/ucontext.h>
543	<	#endif
544	<
545	<	static void sigsegv_handler(int sig, siginfo_t *sip, void *scp)
740	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
741		{
547	–	const uintptr addr = (uintptr)sip->si_addr;
742		#if ENABLE_VOSF
743	<	// Handle screen fault.
744	<	extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
745	<	if (Screen_fault_handler((sigsegv_address_t)addr, SIGSEGV_INVALID_PC))
746	<	return;
743	>	// Handle screen fault
744	>	extern bool Screen_fault_handler(sigsegv_address_t, sigsegv_address_t);
745	>	if (Screen_fault_handler(fault_address, fault_instruction))
746	>	return SIGSEGV_RETURN_SUCCESS;
747		#endif
748	<	#if defined(__powerpc__)
749	<	if (addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) {
750	<	printf("IGNORE write access to ROM at %08x\n", addr);
751	<	(((ucontext_t *)scp)->uc_mcontext.regs)->nip += 4;
752	<	return;
753	<	}
754	<	if (addr >= 0xf3012000 && addr < 0xf3014000 && 0) {
755	<	printf("IGNORE write access to ROM at %08x\n", addr);
756	<	(((ucontext_t *)scp)->uc_mcontext.regs)->nip += 4;
757	<	return;
748	>
749	>	const uintptr addr = (uintptr)fault_address;
750	>	#if HAVE_SIGSEGV_SKIP_INSTRUCTION
751	>	// Ignore writes to ROM
752	>	if ((addr - (uintptr)ROMBaseHost) < ROM_SIZE)
753	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
754	>
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		}
565	–	#endif
566	–	printf("Caught SIGSEGV at address %p\n", sip->si_addr);
567	–	printf("Native PC: %08x\n", (((ucontext_t *)scp)->uc_mcontext.regs)->nip);
568	–	printf("Current CPU: %s\n", current_cpu == main_cpu ? "main" : "interrupts");
569	–	#if 1
570	–	dump_registers();
795		#else
796	<	printf("Main CPU context\n");
573	<	main_cpu->dump_registers();
574	<	printf("Interrupts CPU context\n");
575	<	interrupt_cpu->dump_registers();
796	>	#error "FIXME: You don't have the capability to skip instruction within signal handlers"
797		#endif
798	<	current_cpu->dump_log();
798	>
799	>	printf("SIGSEGV\n");
800	>	printf("  pc %p\n", fault_instruction);
801	>	printf("  ea %p\n", fault_address);
802	>	dump_registers();
803	>	ppc_cpu->dump_log();
804		enter_mon();
805		QuitEmulator();
806	+
807	+	return SIGSEGV_RETURN_FAILURE;
808		}
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
589	–	#if MULTICORE_CPU
590	–	// Initialize alternate CPU emulator to handle interrupts
591	–	interrupt_cpu = new sheepshaver_cpu();
592	–	#endif
593	–
594	–	// Install SIGSEGV handler
595	–	sigemptyset(&sigsegv_action.sa_mask);
596	–	sigsegv_action.sa_sigaction = sigsegv_handler;
597	–	sigsegv_action.sa_flags = SA_SIGINFO;
598	–	sigsegv_action.sa_restorer = NULL;
599	–	sigaction(SIGSEGV, &sigsegv_action, NULL);
600	–
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	<	current_cpu->start_log();
901	<	current_cpu->execute(entry);
899	>	#if 0
900	>	ppc_cpu->start_log();
901	>	#endif
902	>	// start emulation loop and enable code translation or caching
903	>	ppc_cpu->execute(entry);
904		}
905
906		/*
907		*  Handle PowerPC interrupt
908		*/
909
623	–	// Atomic operations
624	–	extern int atomic_add(int *var, int v);
625	–	extern int atomic_and(int *var, int v);
626	–	extern int atomic_or(int *var, int v);
627	–
910		void TriggerInterrupt(void)
911		{
912		#if 0
913		WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
914		#else
915	<	SPCFLAGS_SET( SPCFLAG_INT );
915	>	// Trigger interrupt to main cpu only
916	>	if (ppc_cpu)
917	>	ppc_cpu->trigger_interrupt();
918		#endif
919		}
920
921	<	static void HandleInterrupt(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	<
647	<	// Disable MacOS stack sniffer
648	<	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
654	–	assert(current_cpu == main_cpu);
941		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
942	<	main_cpu->set_cr(main_cpu->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 (main_cpu->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 669 | Line 955 | static void HandleInterrupt(void)
955
956		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
957		DisableInterrupt();
672	–	cpu_push(interrupt_cpu);
958		if (ROMType == ROMTYPE_NEWWORLD)
959	<	current_cpu->interrupt(ROM_BASE + 0x312b1c, main_cpu);
959	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
960		else
961	<	current_cpu->interrupt(ROM_BASE + 0x312a3c, main_cpu);
677	<	cpu_pop();
961	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
962		}
963		break;
964		#endif
#	Line 683 | Line 967 | static void HandleInterrupt(void)
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 696 | Line 983 | static void HandleInterrupt(void)
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 704 | Line 992 | static void HandleInterrupt(void)
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
717	–	/*
718	–	*  Execute NATIVE_OP opcode (called by PowerPC emulator)
719	–	*/
720	–
721	–	#define POWERPC_NATIVE_OP_INIT(LR, OP) \
722	–	tswap32(POWERPC_EMUL_OP | ((LR) << 11) | (((uint32)OP) << 6) | 2)
723	–
724	–	// FIXME: Make sure 32-bit relocations are used
725	–	const uint32 NativeOpTable[NATIVE_OP_MAX] = {
726	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_PATCH_NAME_REGISTRY),
727	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_INSTALL_ACCEL),
728	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_VBL),
729	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_DO_DRIVER_IO),
730	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_IRQ),
731	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_INIT),
732	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_TERM),
733	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_OPEN),
734	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_CLOSE),
735	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_WPUT),
736	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_RSRV),
737	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_NOTHING),
738	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_OPEN),
739	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_IN),
740	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_OUT),
741	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CONTROL),
742	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_STATUS),
743	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CLOSE),
744	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_RESOURCE),
745	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_RESOURCE),
746	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_IND_RESOURCE),
747	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_IND_RESOURCE),
748	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_R_GET_RESOURCE),
749	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_DISABLE_INTERRUPT),
750	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_ENABLE_INTERRUPT),
751	–	};
752	–
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	<
761	<	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 771 | 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),
775	<	(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 806 | 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();
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, gpr(4), gpr(5));
1112		break;
1113	<	case NATIVE_ENABLE_INTERRUPT:
1114	<	EnableInterrupt();
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		}
823	–	}
824	–
825	–	/*
826	–	*  Execute native subroutine (LR must contain return address)
827	–	*/
1121
1122	<	void ExecuteNative(int selector)
1123	<	{
1124	<	uint32 tvect[2];
832	<	tvect[0] = tswap32(POWERPC_NATIVE_OP_FUNC(selector));
833	<	tvect[1] = 0; // Fake TVECT
834	<	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
835	<	M68kRegisters r;
836	<	Execute68k((uint32)&desc, &r);
1122	>	#if EMUL_TIME_STATS
1123	>	native_exec_time += (clock() - native_exec_start);
1124	>	#endif
1125		}
1126
1127		/*
#	Line 844 | 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 854 | Line 1142 | void Execute68k(uint32 pc, M68kRegisters
1142
1143		void Execute68kTrap(uint16 trap, M68kRegisters *r)
1144		{
1145	<	uint16 proc[2] = {trap, M68K_RTS};
1146	<	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 864 | 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);
910	<	}
911	<
912	<	/*
913	<	*  Atomic operations
914	<	*/
915	<
916	<	int atomic_add(int *var, int v)
917	<	{
918	<	int ret = *var;
919	<	*var += v;
920	<	return ret;
921	<	}
922	<
923	<	int atomic_and(int *var, int v)
924	<	{
925	<	int ret = *var;
926	<	*var &= v;
927	<	return ret;
928	<	}
929	<
930	<	int atomic_or(int *var, int v)
931	<	{
932	<	int ret = *var;
933	<	*var |= v;
934	<	return ret;
1200	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1201		}
1202
1203		/*
#	Line 940 | Line 1206 | int atomic_or(int *var, int v)
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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