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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.12 by gbeauche, 2003-11-01T15:15:27Z vs.
Revision 1.67 by gbeauche, 2006-01-21T17:18:53Z

#	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 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	+	#ifdef HAVE_MALLOC_H
46	+	#include <malloc.h>
47	+	#endif
48	+
49	+	#ifdef USE_SDL_VIDEO
50	+	#include <SDL_events.h>
51	+	#endif
52
53		#if ENABLE_MON
54		#include "mon.h"
#	Line 46 | Line 58
58		#define DEBUG 0
59		#include "debug.h"
60
61	+	// Emulation time statistics
62	+	#ifndef EMUL_TIME_STATS
63	+	#define EMUL_TIME_STATS 0
64	+	#endif
65	+
66	+	#if EMUL_TIME_STATS
67	+	static clock_t emul_start_time;
68	+	static uint32 interrupt_count = 0, ppc_interrupt_count = 0;
69	+	static clock_t interrupt_time = 0;
70	+	static uint32 exec68k_count = 0;
71	+	static clock_t exec68k_time = 0;
72	+	static uint32 native_exec_count = 0;
73	+	static clock_t native_exec_time = 0;
74	+	static uint32 macos_exec_count = 0;
75	+	static clock_t macos_exec_time = 0;
76	+	#endif
77	+
78		static void enter_mon(void)
79		{
80		// Start up mon in real-mode
#	Line 55 | Line 84 | static void enter_mon(void)
84		#endif
85		}
86
87	<	// Enable multicore (main/interrupts) cpu emulation?
88	<	#define MULTICORE_CPU (ASYNC_IRQ ? 1 : 0)
87	>	// From main_*.cpp
88	>	extern uintptr SignalStackBase();
89	>
90	>	// From rsrc_patches.cpp
91	>	extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h);
92	>
93	>	// PowerPC EmulOp to exit from emulation looop
94	>	const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP | 1;
95
96		// Enable Execute68k() safety checks?
97		#define SAFE_EXEC_68K 1
#	Line 71 | Line 106 | static void enter_mon(void)
106		#define INTERRUPTS_IN_NATIVE_MODE 1
107
108		// Pointer to Kernel Data
109	<	static KernelData * const kernel_data = (KernelData *)KERNEL_DATA_BASE;
109	>	static KernelData * kernel_data;
110	>
111	>	// SIGSEGV handler
112	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
113	>
114	>	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
115	>	// Special trampolines for EmulOp and NativeOp
116	>	static uint8 *emul_op_trampoline;
117	>	static uint8 *native_op_trampoline;
118	>	#endif
119	>
120	>	// JIT Compiler enabled?
121	>	static inline bool enable_jit_p()
122	>	{
123	>	return PrefsFindBool("jit");
124	>	}
125
126
127		/**
128		*              PowerPC emulator glue with special 'sheep' opcodes
129		**/
130
131	+	enum {
132	+	PPC_I(SHEEP) = PPC_I(MAX),
133	+	PPC_I(SHEEP_MAX)
134	+	};
135	+
136		class sheepshaver_cpu
137		: public powerpc_cpu
138		{
#	Line 89 | Line 144 | public:
144		// Constructor
145		sheepshaver_cpu();
146
147	<	// Condition Register accessors
147	>	// CR & XER accessors
148		uint32 get_cr() const           { return cr().get(); }
149		void set_cr(uint32 v)           { cr().set(v); }
150	+	uint32 get_xer() const          { return xer().get(); }
151	+	void set_xer(uint32 v)          { xer().set(v); }
152
153	<	// Execution loop
154	<	void execute(uint32 entry, bool enable_cache = false);
153	>	// Execute NATIVE_OP routine
154	>	void execute_native_op(uint32 native_op);
155	>
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 105 | 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);
113	–	void handle_interrupt();
177
178	<	// Lazy memory allocator (one item at a time)
179	<	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);
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
125	–	lazy_allocator< sheepshaver_cpu > allocator_helper< sheepshaver_cpu, lazy_allocator >::allocator;
126	–
182		sheepshaver_cpu::sheepshaver_cpu()
183	<	: powerpc_cpu()
183	>	: powerpc_cpu(enable_jit_p())
184		{
185		init_decoder();
186		}
187
188		void sheepshaver_cpu::init_decoder()
189		{
135	–	#ifndef PPC_NO_STATIC_II_INDEX_TABLE
136	–	static bool initialized = false;
137	–	if (initialized)
138	–	return;
139	–	initialized = true;
140	–	#endif
141	–
190		static const instr_info_t sheep_ii_table[] = {
191		{ "sheep",
192	<	(execute_fn)&sheepshaver_cpu::execute_sheep,
192	>	(execute_pmf)&sheepshaver_cpu::execute_sheep,
193		NULL,
194	+	PPC_I(SHEEP),
195		D_form, 6, 0, CFLOW_JUMP | CFLOW_TRAP
196		}
197		};
#	Line 156 | Line 205 | void sheepshaver_cpu::init_decoder()
205		}
206		}
207
159	–	// Forward declaration for native opcode handler
160	–	static void NativeOp(int selector);
161	–
208		/*              NativeOp instruction format:
209	<	+------------+--------------------------+--+----------+------------+
210	<	|      6     |                          |FN|    OP    |      2     |
211	<	+------------+--------------------------+--+----------+------------+
212	<	0         5 |6                       19 20 21      25 26        31
209	>	+------------+-------------------------+--+-----------+------------+
210	>	|      6     |                         |FN|    OP     |      2     |
211	>	+------------+-------------------------+--+-----------+------------+
212	>	0         5 |6                      18 19 20      25 26        31
213		*/
214
215	<	typedef bit_field< 20, 20 > FN_field;
216	<	typedef bit_field< 21, 25 > NATIVE_OP_field;
215	>	typedef bit_field< 19, 19 > FN_field;
216	>	typedef bit_field< 20, 25 > NATIVE_OP_field;
217		typedef bit_field< 26, 31 > EMUL_OP_field;
218
219	+	// Execute EMUL_OP routine
220	+	void sheepshaver_cpu::execute_emul_op(uint32 emul_op)
221	+	{
222	+	M68kRegisters r68;
223	+	WriteMacInt32(XLM_68K_R25, gpr(25));
224	+	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
225	+	for (int i = 0; i < 8; i++)
226	+	r68.d[i] = gpr(8 + i);
227	+	for (int i = 0; i < 7; i++)
228	+	r68.a[i] = gpr(16 + i);
229	+	r68.a[7] = gpr(1);
230	+	uint32 saved_cr = get_cr() & 0xff9fffff; // mask_operand::compute(11, 8)
231	+	uint32 saved_xer = get_xer();
232	+	EmulOp(&r68, gpr(24), emul_op);
233	+	set_cr(saved_cr);
234	+	set_xer(saved_xer);
235	+	for (int i = 0; i < 8; i++)
236	+	gpr(8 + i) = r68.d[i];
237	+	for (int i = 0; i < 7; i++)
238	+	gpr(16 + i) = r68.a[i];
239	+	gpr(1) = r68.a[7];
240	+	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
241	+	}
242	+
243		// Execute SheepShaver instruction
244		void sheepshaver_cpu::execute_sheep(uint32 opcode)
245		{
#	Line 186 | Line 256 | void sheepshaver_cpu::execute_sheep(uint
256		break;
257
258		case 2:         // EXEC_NATIVE
259	<	NativeOp(NATIVE_OP_field::extract(opcode));
259	>	execute_native_op(NATIVE_OP_field::extract(opcode));
260		if (FN_field::test(opcode))
261		pc() = lr();
262		else
263		pc() += 4;
264		break;
265
266	<	default: {      // EMUL_OP
267	<	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);
266	>	default:        // EMUL_OP
267	>	execute_emul_op(EMUL_OP_field::extract(opcode) - 3);
268		pc() += 4;
269		break;
270		}
215	–	}
271		}
272
273	<	// Execution loop
274	<	void sheepshaver_cpu::execute(uint32 entry, bool enable_cache)
275	<	{
276	<	powerpc_cpu::execute(entry, enable_cache);
273	>	// Compile one instruction
274	>	#if PPC_ENABLE_JIT
275	>	int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
276	>	{
277	>	const instr_info_t *ii = cg_context.instr_info;
278	>	if (ii->mnemo != PPC_I(SHEEP))
279	>	return COMPILE_FAILURE;
280	>
281	>	int status = COMPILE_FAILURE;
282	>	powerpc_dyngen & dg = cg_context.codegen;
283	>	uint32 opcode = cg_context.opcode;
284	>
285	>	switch (opcode & 0x3f) {
286	>	case 0:         // EMUL_RETURN
287	>	dg.gen_invoke(QuitEmulator);
288	>	status = COMPILE_CODE_OK;
289	>	break;
290	>
291	>	case 1:         // EXEC_RETURN
292	>	dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN);
293	>	// Don't check for pending interrupts, we do know we have to
294	>	// get out of this block ASAP
295	>	dg.gen_exec_return();
296	>	status = COMPILE_EPILOGUE_OK;
297	>	break;
298	>
299	>	case 2: {       // EXEC_NATIVE
300	>	uint32 selector = NATIVE_OP_field::extract(opcode);
301	>	switch (selector) {
302	>	#if !PPC_REENTRANT_JIT
303	>	// Filter out functions that may invoke Execute68k() or
304	>	// CallMacOS(), this would break reentrancy as they could
305	>	// invalidate the translation cache and even overwrite
306	>	// continuation code when we are done with them.
307	>	case NATIVE_PATCH_NAME_REGISTRY:
308	>	dg.gen_invoke(DoPatchNameRegistry);
309	>	status = COMPILE_CODE_OK;
310	>	break;
311	>	case NATIVE_VIDEO_INSTALL_ACCEL:
312	>	dg.gen_invoke(VideoInstallAccel);
313	>	status = COMPILE_CODE_OK;
314	>	break;
315	>	case NATIVE_VIDEO_VBL:
316	>	dg.gen_invoke(VideoVBL);
317	>	status = COMPILE_CODE_OK;
318	>	break;
319	>	case NATIVE_GET_RESOURCE:
320	>	case NATIVE_GET_1_RESOURCE:
321	>	case NATIVE_GET_IND_RESOURCE:
322	>	case NATIVE_GET_1_IND_RESOURCE:
323	>	case NATIVE_R_GET_RESOURCE: {
324	>	static const uint32 get_resource_ptr[] = {
325	>	XLM_GET_RESOURCE,
326	>	XLM_GET_1_RESOURCE,
327	>	XLM_GET_IND_RESOURCE,
328	>	XLM_GET_1_IND_RESOURCE,
329	>	XLM_R_GET_RESOURCE
330	>	};
331	>	uint32 old_get_resource = ReadMacInt32(get_resource_ptr[selector - NATIVE_GET_RESOURCE]);
332	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
333	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::get_resource).ptr();
334	>	dg.gen_invoke_CPU_im(func, old_get_resource);
335	>	status = COMPILE_CODE_OK;
336	>	break;
337	>	}
338	>	case NATIVE_CHECK_LOAD_INVOC:
339	>	dg.gen_load_T0_GPR(3);
340	>	dg.gen_load_T1_GPR(4);
341	>	dg.gen_se_16_32_T1();
342	>	dg.gen_load_T2_GPR(5);
343	>	dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc);
344	>	status = COMPILE_CODE_OK;
345	>	break;
346	>	#endif
347	>	case NATIVE_BITBLT:
348	>	dg.gen_load_T0_GPR(3);
349	>	dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
350	>	status = COMPILE_CODE_OK;
351	>	break;
352	>	case NATIVE_INVRECT:
353	>	dg.gen_load_T0_GPR(3);
354	>	dg.gen_invoke_T0((void (*)(uint32))NQD_invrect);
355	>	status = COMPILE_CODE_OK;
356	>	break;
357	>	case NATIVE_FILLRECT:
358	>	dg.gen_load_T0_GPR(3);
359	>	dg.gen_invoke_T0((void (*)(uint32))NQD_fillrect);
360	>	status = COMPILE_CODE_OK;
361	>	break;
362	>	}
363	>	// Could we fully translate this NativeOp?
364	>	if (status == COMPILE_CODE_OK) {
365	>	if (!FN_field::test(opcode))
366	>	cg_context.done_compile = false;
367	>	else {
368	>	dg.gen_load_A0_LR();
369	>	dg.gen_set_PC_A0();
370	>	cg_context.done_compile = true;
371	>	}
372	>	break;
373	>	}
374	>	#if PPC_REENTRANT_JIT
375	>	// Try to execute NativeOp trampoline
376	>	if (!FN_field::test(opcode))
377	>	dg.gen_set_PC_im(cg_context.pc + 4);
378	>	else {
379	>	dg.gen_load_A0_LR();
380	>	dg.gen_set_PC_A0();
381	>	}
382	>	dg.gen_mov_32_T0_im(selector);
383	>	dg.gen_jmp(native_op_trampoline);
384	>	cg_context.done_compile = true;
385	>	status = COMPILE_EPILOGUE_OK;
386	>	break;
387	>	#endif
388	>	// Invoke NativeOp handler
389	>	if (!FN_field::test(opcode)) {
390	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
391	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
392	>	dg.gen_invoke_CPU_im(func, selector);
393	>	cg_context.done_compile = false;
394	>	status = COMPILE_CODE_OK;
395	>	}
396	>	// Otherwise, let it generate a call to execute_sheep() which
397	>	// will cause necessary updates to the program counter
398	>	break;
399	>	}
400	>
401	>	default: {      // EMUL_OP
402	>	uint32 emul_op = EMUL_OP_field::extract(opcode) - 3;
403	>	#if PPC_REENTRANT_JIT
404	>	// Try to execute EmulOp trampoline
405	>	dg.gen_set_PC_im(cg_context.pc + 4);
406	>	dg.gen_mov_32_T0_im(emul_op);
407	>	dg.gen_jmp(emul_op_trampoline);
408	>	cg_context.done_compile = true;
409	>	status = COMPILE_EPILOGUE_OK;
410	>	break;
411	>	#endif
412	>	// Invoke EmulOp handler
413	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
414	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
415	>	dg.gen_invoke_CPU_im(func, emul_op);
416	>	cg_context.done_compile = false;
417	>	status = COMPILE_CODE_OK;
418	>	break;
419	>	}
420	>	}
421	>	return status;
422		}
423	+	#endif
424
425		// Handle MacOS interrupt
426		void sheepshaver_cpu::interrupt(uint32 entry)
427		{
428	<	#if !MULTICORE_CPU
428	>	#if EMUL_TIME_STATS
429	>	ppc_interrupt_count++;
430	>	const clock_t interrupt_start = clock();
431	>	#endif
432	>
433		// Save program counters and branch registers
434		uint32 saved_pc = pc();
435		uint32 saved_lr = lr();
436		uint32 saved_ctr= ctr();
437		uint32 saved_sp = gpr(1);
233	–	#endif
438
439		// Initialize stack pointer to SheepShaver alternate stack base
440	<	gpr(1) = SheepStack1Base - 64;
440	>	gpr(1) = SignalStackBase() - 64;
441
442		// Build trampoline to return from interrupt
443	<	uint32 trampoline[] = { htonl(POWERPC_EMUL_OP | 1) };
443	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
444
445		// Prepare registers for nanokernel interrupt routine
446		kernel_data->v[0x004 >> 2] = htonl(gpr(1));
#	Line 255 | Line 459 | void sheepshaver_cpu::interrupt(uint32 e
459		gpr(1)  = KernelDataAddr;
460		gpr(7)  = ntohl(kernel_data->v[0x660 >> 2]);
461		gpr(8)  = 0;
462	<	gpr(10) = (uint32)trampoline;
463	<	gpr(12) = (uint32)trampoline;
462	>	gpr(10) = trampoline.addr();
463	>	gpr(12) = trampoline.addr();
464		gpr(13) = get_cr();
465
466		// rlwimi. r7,r7,8,0,0
#	Line 270 | Line 474 | void sheepshaver_cpu::interrupt(uint32 e
474		// Enter nanokernel
475		execute(entry);
476
273	–	#if !MULTICORE_CPU
477		// Restore program counters and branch registers
478		pc() = saved_pc;
479		lr() = saved_lr;
480		ctr()= saved_ctr;
481		gpr(1) = saved_sp;
482	+
483	+	#if EMUL_TIME_STATS
484	+	interrupt_time += (clock() - interrupt_start);
485		#endif
486		}
487
488		// Execute 68k routine
489		void sheepshaver_cpu::execute_68k(uint32 entry, M68kRegisters *r)
490		{
491	+	#if EMUL_TIME_STATS
492	+	exec68k_count++;
493	+	const clock_t exec68k_start = clock();
494	+	#endif
495	+
496		#if SAFE_EXEC_68K
497		if (ReadMacInt32(XLM_RUN_MODE) != MODE_EMUL_OP)
498		printf("FATAL: Execute68k() not called from EMUL_OP mode\n");
#	Line 364 | Line 575 | void sheepshaver_cpu::execute_68k(uint32
575		lr() = saved_lr;
576		ctr()= saved_ctr;
577		set_cr(saved_cr);
578	+
579	+	#if EMUL_TIME_STATS
580	+	exec68k_time += (clock() - exec68k_start);
581	+	#endif
582		}
583
584		// Call MacOS PPC code
585		uint32 sheepshaver_cpu::execute_macos_code(uint32 tvect, int nargs, uint32 const *args)
586		{
587	+	#if EMUL_TIME_STATS
588	+	macos_exec_count++;
589	+	const clock_t macos_exec_start = clock();
590	+	#endif
591	+
592		// Save program counters and branch registers
593		uint32 saved_pc = pc();
594		uint32 saved_lr = lr();
595		uint32 saved_ctr= ctr();
596
597		// Build trampoline with EXEC_RETURN
598	<	uint32 trampoline[] = { htonl(POWERPC_EMUL_OP | 1) };
599	<	lr() = (uint32)trampoline;
598	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
599	>	lr() = trampoline.addr();
600
601		gpr(1) -= 64;                                                           // Create stack frame
602		uint32 proc = ReadMacInt32(tvect);                      // Get routine address
#	Line 407 | Line 627 | uint32 sheepshaver_cpu::execute_macos_co
627		lr() = saved_lr;
628		ctr()= saved_ctr;
629
630	+	#if EMUL_TIME_STATS
631	+	macos_exec_time += (clock() - macos_exec_start);
632	+	#endif
633	+
634		return retval;
635		}
636
#	Line 416 | Line 640 | inline void sheepshaver_cpu::execute_ppc
640		// Save branch registers
641		uint32 saved_lr = lr();
642
643	<	const uint32 trampoline[] = { htonl(POWERPC_EMUL_OP | 1) };
644	<	lr() = (uint32)trampoline;
643	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
644	>	WriteMacInt32(trampoline.addr(), POWERPC_EXEC_RETURN);
645	>	lr() = trampoline.addr();
646
647		execute(entry);
648
#	Line 426 | Line 651 | inline void sheepshaver_cpu::execute_ppc
651		}
652
653		// Resource Manager thunk
429	–	extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h);
430	–
654		inline void sheepshaver_cpu::get_resource(uint32 old_get_resource)
655		{
656		uint32 type = gpr(3);
#	Line 453 | Line 676 | inline void sheepshaver_cpu::get_resourc
676		*              SheepShaver CPU engine interface
677		**/
678
679	<	static sheepshaver_cpu *main_cpu = NULL;                // CPU emulator to handle usual control flow
680	<	static sheepshaver_cpu *interrupt_cpu = NULL;   // CPU emulator to handle interrupts
458	<	static sheepshaver_cpu *current_cpu = NULL;             // Current CPU emulator context
679	>	// PowerPC CPU emulator
680	>	static sheepshaver_cpu *ppc_cpu = NULL;
681
682		void FlushCodeCache(uintptr start, uintptr end)
683		{
684		D(bug("FlushCodeCache(%08x, %08x)\n", start, end));
685	<	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
685	>	ppc_cpu->invalidate_cache_range(start, end);
686		}
687
688		// Dump PPC registers
689		static void dump_registers(void)
690		{
691	<	current_cpu->dump_registers();
691	>	ppc_cpu->dump_registers();
692		}
693
694		// Dump log
695		static void dump_log(void)
696		{
697	<	current_cpu->dump_log();
697	>	ppc_cpu->dump_log();
698		}
699
700		/*
701		*  Initialize CPU emulation
702		*/
703
704	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
704	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
705		{
706		#if ENABLE_VOSF
707		// Handle screen fault
#	Line 508 | Line 713 | static sigsegv_return_t sigsegv_handler(
713		const uintptr addr = (uintptr)fault_address;
714		#if HAVE_SIGSEGV_SKIP_INSTRUCTION
715		// Ignore writes to ROM
716	<	if ((addr - ROM_BASE) < ROM_SIZE)
716	>	if ((addr - (uintptr)ROMBaseHost) < ROM_SIZE)
717		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
718
719	<	// Ignore all other faults, if requested
720	<	if (PrefsFindBool("ignoresegv"))
721	<	return SIGSEGV_RETURN_FAILURE;
719	>	// Get program counter of target CPU
720	>	sheepshaver_cpu * const cpu = ppc_cpu;
721	>	const uint32 pc = cpu->pc();
722	>
723	>	// Fault in Mac ROM or RAM?
724	>	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));
725	>	if (mac_fault) {
726	>
727	>	// "VM settings" during MacOS 8 installation
728	>	if (pc == ROM_BASE + 0x488160 && cpu->gpr(20) == 0xf8000000)
729	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
730	>
731	>	// MacOS 8.5 installation
732	>	else if (pc == ROM_BASE + 0x488140 && cpu->gpr(16) == 0xf8000000)
733	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
734	>
735	>	// MacOS 8 serial drivers on startup
736	>	else if (pc == ROM_BASE + 0x48e080 && (cpu->gpr(8) == 0xf3012002 || cpu->gpr(8) == 0xf3012000))
737	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
738	>
739	>	// MacOS 8.1 serial drivers on startup
740	>	else if (pc == ROM_BASE + 0x48c5e0 && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
741	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
742	>	else if (pc == ROM_BASE + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
743	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
744	>
745	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
746	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(16) == 0xf3012002 || cpu->gpr(16) == 0xf3012000))
747	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
748	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
749	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
750	>
751	>	// Ignore writes to the zero page
752	>	else if ((uint32)(addr - SheepMem::ZeroPage()) < (uint32)SheepMem::PageSize())
753	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
754	>
755	>	// Ignore all other faults, if requested
756	>	if (PrefsFindBool("ignoresegv"))
757	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
758	>	}
759		#else
760		#error "FIXME: You don't have the capability to skip instruction within signal handlers"
761		#endif
762
763	<	printf("SIGSEGV\n");
764	<	printf("  pc %p\n", fault_instruction);
765	<	printf("  ea %p\n", fault_address);
524	<	printf(" cpu %s\n", current_cpu == main_cpu ? "main" : "interrupts");
763	>	fprintf(stderr, "SIGSEGV\n");
764	>	fprintf(stderr, "  pc %p\n", fault_instruction);
765	>	fprintf(stderr, "  ea %p\n", fault_address);
766		dump_registers();
767	<	current_cpu->dump_log();
767	>	ppc_cpu->dump_log();
768		enter_mon();
769		QuitEmulator();
770
#	Line 532 | Line 773 | static sigsegv_return_t sigsegv_handler(
773
774		void init_emul_ppc(void)
775		{
776	+	// Get pointer to KernelData in host address space
777	+	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
778	+
779		// Initialize main CPU emulator
780	<	main_cpu = new sheepshaver_cpu();
781	<	main_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
780	>	ppc_cpu = new sheepshaver_cpu();
781	>	ppc_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
782	>	ppc_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
783		WriteMacInt32(XLM_RUN_MODE, MODE_68K);
784
540	–	#if MULTICORE_CPU
541	–	// Initialize alternate CPU emulator to handle interrupts
542	–	interrupt_cpu = new sheepshaver_cpu();
543	–	#endif
544	–
545	–	// Install the handler for SIGSEGV
546	–	sigsegv_install_handler(sigsegv_handler);
547	–
785		#if ENABLE_MON
786		// Install "regs" command in cxmon
787		mon_add_command("regs", dump_registers, "regs                     Dump PowerPC registers\n");
788		mon_add_command("log", dump_log, "log                      Dump PowerPC emulation log\n");
789		#endif
790	+
791	+	#if EMUL_TIME_STATS
792	+	emul_start_time = clock();
793	+	#endif
794		}
795
796		/*
797	+	*  Deinitialize emulation
798	+	*/
799	+
800	+	void exit_emul_ppc(void)
801	+	{
802	+	#if EMUL_TIME_STATS
803	+	clock_t emul_end_time = clock();
804	+
805	+	printf("### Statistics for SheepShaver emulation parts\n");
806	+	const clock_t emul_time = emul_end_time - emul_start_time;
807	+	printf("Total emulation time : %.1f sec\n", double(emul_time) / double(CLOCKS_PER_SEC));
808	+	printf("Total interrupt count: %d (%2.1f Hz)\n", interrupt_count,
809	+	(double(interrupt_count) * CLOCKS_PER_SEC) / double(emul_time));
810	+	printf("Total ppc interrupt count: %d (%2.1f %%)\n", ppc_interrupt_count,
811	+	(double(ppc_interrupt_count) * 100.0) / double(interrupt_count));
812	+
813	+	#define PRINT_STATS(LABEL, VAR_PREFIX) do {                                                             \
814	+	printf("Total " LABEL " count : %d\n", VAR_PREFIX##_count);             \
815	+	printf("Total " LABEL " time  : %.1f sec (%.1f%%)\n",                   \
816	+	double(VAR_PREFIX##_time) / double(CLOCKS_PER_SEC),          \
817	+	100.0 * double(VAR_PREFIX##_time) / double(emul_time));      \
818	+	} while (0)
819	+
820	+	PRINT_STATS("Execute68k[Trap] execution", exec68k);
821	+	PRINT_STATS("NativeOp execution", native_exec);
822	+	PRINT_STATS("MacOS routine execution", macos_exec);
823	+
824	+	#undef PRINT_STATS
825	+	printf("\n");
826	+	#endif
827	+
828	+	delete ppc_cpu;
829	+	ppc_cpu = NULL;
830	+	}
831	+
832	+	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
833	+	// Initialize EmulOp trampolines
834	+	void init_emul_op_trampolines(basic_dyngen & dg)
835	+	{
836	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
837	+	func_t func;
838	+
839	+	// EmulOp
840	+	emul_op_trampoline = dg.gen_start();
841	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
842	+	dg.gen_invoke_CPU_T0(func);
843	+	dg.gen_exec_return();
844	+	dg.gen_end();
845	+
846	+	// NativeOp
847	+	native_op_trampoline = dg.gen_start();
848	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
849	+	dg.gen_invoke_CPU_T0(func);
850	+	dg.gen_exec_return();
851	+	dg.gen_end();
852	+
853	+	D(bug("EmulOp trampoline:   %p\n", emul_op_trampoline));
854	+	D(bug("NativeOp trampoline: %p\n", native_op_trampoline));
855	+	}
856	+	#endif
857	+
858	+	/*
859		*  Emulation loop
860		*/
861
862		void emul_ppc(uint32 entry)
863		{
864	<	current_cpu = main_cpu;
865	<	#if DEBUG
563	<	current_cpu->start_log();
864	>	#if 0
865	>	ppc_cpu->start_log();
866		#endif
867		// start emulation loop and enable code translation or caching
868	<	current_cpu->execute(entry, true);
868	>	ppc_cpu->execute(entry);
869		}
870
871		/*
872		*  Handle PowerPC interrupt
873		*/
874
573	–	#if ASYNC_IRQ
574	–	void HandleInterrupt(void)
575	–	{
576	–	main_cpu->handle_interrupt();
577	–	}
578	–	#else
875		void TriggerInterrupt(void)
876		{
877	+	idle_resume();
878		#if 0
879		WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
880		#else
881		// Trigger interrupt to main cpu only
882	<	if (main_cpu)
883	<	main_cpu->trigger_interrupt();
882	>	if (ppc_cpu)
883	>	ppc_cpu->trigger_interrupt();
884		#endif
885		}
589	–	#endif
886
887	<	void sheepshaver_cpu::handle_interrupt(void)
887	>	void HandleInterrupt(powerpc_registers *r)
888		{
889	+	#ifdef USE_SDL_VIDEO
890	+	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
891	+	SDL_PumpEvents();
892	+	#endif
893	+
894		// Do nothing if interrupts are disabled
895		if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
896		return;
897
898	<	// Do nothing if there is no interrupt pending
899	<	if (InterruptFlags == 0)
900	<	return;
901	<
601	<	// Disable MacOS stack sniffer
602	<	WriteMacInt32(0x110, 0);
898	>	// Update interrupt count
899	>	#if EMUL_TIME_STATS
900	>	interrupt_count++;
901	>	#endif
902
903		// Interrupt action depends on current run mode
904		switch (ReadMacInt32(XLM_RUN_MODE)) {
905		case MODE_68K:
906		// 68k emulator active, trigger 68k interrupt level 1
608	–	assert(current_cpu == main_cpu);
907		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
908	<	set_cr(get_cr() | tswap32(kernel_data->v[0x674 >> 2]));
908	>	r->cr.set(r->cr.get() | tswap32(kernel_data->v[0x674 >> 2]));
909		break;
910
911		#if INTERRUPTS_IN_NATIVE_MODE
912		case MODE_NATIVE:
913		// 68k emulator inactive, in nanokernel?
914	<	assert(current_cpu == main_cpu);
915	<	if (gpr(1) != KernelDataAddr) {
914	>	if (r->gpr[1] != KernelDataAddr) {
915	>
916		// Prepare for 68k interrupt level 1
917		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
918		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 623 | Line 921 | void sheepshaver_cpu::handle_interrupt(v
921
922		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
923		DisableInterrupt();
626	–	cpu_push(interrupt_cpu);
924		if (ROMType == ROMTYPE_NEWWORLD)
925	<	current_cpu->interrupt(ROM_BASE + 0x312b1c);
925	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
926		else
927	<	current_cpu->interrupt(ROM_BASE + 0x312a3c);
631	<	cpu_pop();
927	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
928		}
929		break;
930		#endif
#	Line 637 | Line 933 | void sheepshaver_cpu::handle_interrupt(v
933		case MODE_EMUL_OP:
934		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
935		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
936	+	#if EMUL_TIME_STATS
937	+	const clock_t interrupt_start = clock();
938	+	#endif
939		#if 1
940		// Execute full 68k interrupt routine
941		M68kRegisters r;
942		uint32 old_r25 = ReadMacInt32(XLM_68K_R25);     // Save interrupt level
943		WriteMacInt32(XLM_68K_R25, 0x21);                       // Execute with interrupt level 1
944	<	static const uint8 proc[] = {
944	>	static const uint8 proc_template[] = {
945		0x3f, 0x3c, 0x00, 0x00,                 // move.w       #$0000,-(sp)    (fake format word)
946		0x48, 0x7a, 0x00, 0x0a,                 // pea          @1(pc)                  (return address)
947		0x40, 0xe7,                                             // move         sr,-(sp)                (saved SR)
#	Line 650 | Line 949 | void sheepshaver_cpu::handle_interrupt(v
949		0x4e, 0xd0,                                             // jmp          (a0)
950		M68K_RTS >> 8, M68K_RTS & 0xff  // @1
951		};
952	<	Execute68k((uint32)proc, &r);
952	>	BUILD_SHEEPSHAVER_PROCEDURE(proc);
953	>	Execute68k(proc, &r);
954		WriteMacInt32(XLM_68K_R25, old_r25);            // Restore interrupt level
955		#else
956		// Only update cursor
#	Line 658 | Line 958 | void sheepshaver_cpu::handle_interrupt(v
958		if (InterruptFlags & INTFLAG_VIA) {
959		ClearInterruptFlag(INTFLAG_VIA);
960		ADBInterrupt();
961	<	ExecutePPC(VideoVBL);
961	>	ExecuteNative(NATIVE_VIDEO_VBL);
962		}
963		}
964		#endif
965	+	#if EMUL_TIME_STATS
966	+	interrupt_time += (clock() - interrupt_start);
967	+	#endif
968		}
969		break;
970		#endif
971		}
972		}
973
671	–	/*
672	–	*  Execute NATIVE_OP opcode (called by PowerPC emulator)
673	–	*/
674	–
675	–	#define POWERPC_NATIVE_OP_INIT(LR, OP) \
676	–	tswap32(POWERPC_EMUL_OP | ((LR) << 11) | (((uint32)OP) << 6) | 2)
677	–
678	–	// FIXME: Make sure 32-bit relocations are used
679	–	const uint32 NativeOpTable[NATIVE_OP_MAX] = {
680	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_PATCH_NAME_REGISTRY),
681	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_INSTALL_ACCEL),
682	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_VBL),
683	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_DO_DRIVER_IO),
684	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_IRQ),
685	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_INIT),
686	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_TERM),
687	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_OPEN),
688	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_CLOSE),
689	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_WPUT),
690	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_RSRV),
691	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_NOTHING),
692	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_OPEN),
693	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_IN),
694	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_OUT),
695	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CONTROL),
696	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_STATUS),
697	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CLOSE),
698	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_RESOURCE),
699	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_RESOURCE),
700	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_IND_RESOURCE),
701	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_IND_RESOURCE),
702	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_R_GET_RESOURCE),
703	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_DISABLE_INTERRUPT),
704	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_ENABLE_INTERRUPT),
705	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_MAKE_EXECUTABLE),
706	–	};
707	–
974		static void get_resource(void);
975		static void get_1_resource(void);
976		static void get_ind_resource(void);
977		static void get_1_ind_resource(void);
978		static void r_get_resource(void);
979
980	<	#define GPR(REG) current_cpu->gpr(REG)
981	<
716	<	static void NativeOp(int selector)
980	>	// Execute NATIVE_OP routine
981	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
982		{
983	+	#if EMUL_TIME_STATS
984	+	native_exec_count++;
985	+	const clock_t native_exec_start = clock();
986	+	#endif
987	+
988		switch (selector) {
989		case NATIVE_PATCH_NAME_REGISTRY:
990		DoPatchNameRegistry();
#	Line 726 | Line 996 | static void NativeOp(int selector)
996		VideoVBL();
997		break;
998		case NATIVE_VIDEO_DO_DRIVER_IO:
999	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void *)GPR(3), (void *)GPR(4),
730	<	(void *)GPR(5), GPR(6), GPR(7));
999	>	gpr(3) = (int32)(int16)VideoDoDriverIO(gpr(3), gpr(4), gpr(5), gpr(6), gpr(7));
1000		break;
1001	<	case NATIVE_GET_RESOURCE:
1002	<	get_resource();
1001	>	case NATIVE_ETHER_AO_GET_HWADDR:
1002	>	AO_get_ethernet_address(gpr(3));
1003		break;
1004	<	case NATIVE_GET_1_RESOURCE:
1005	<	get_1_resource();
1004	>	case NATIVE_ETHER_AO_ADD_MULTI:
1005	>	AO_enable_multicast(gpr(3));
1006		break;
1007	<	case NATIVE_GET_IND_RESOURCE:
1008	<	get_ind_resource();
1007	>	case NATIVE_ETHER_AO_DEL_MULTI:
1008	>	AO_disable_multicast(gpr(3));
1009		break;
1010	<	case NATIVE_GET_1_IND_RESOURCE:
1011	<	get_1_ind_resource();
1010	>	case NATIVE_ETHER_AO_SEND_PACKET:
1011	>	AO_transmit_packet(gpr(3));
1012	>	break;
1013	>	case NATIVE_ETHER_IRQ:
1014	>	EtherIRQ();
1015	>	break;
1016	>	case NATIVE_ETHER_INIT:
1017	>	gpr(3) = InitStreamModule((void *)gpr(3));
1018	>	break;
1019	>	case NATIVE_ETHER_TERM:
1020	>	TerminateStreamModule();
1021	>	break;
1022	>	case NATIVE_ETHER_OPEN:
1023	>	gpr(3) = ether_open((queue_t *)gpr(3), (void *)gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1024	>	break;
1025	>	case NATIVE_ETHER_CLOSE:
1026	>	gpr(3) = ether_close((queue_t *)gpr(3), gpr(4), (void *)gpr(5));
1027	>	break;
1028	>	case NATIVE_ETHER_WPUT:
1029	>	gpr(3) = ether_wput((queue_t *)gpr(3), (mblk_t *)gpr(4));
1030	>	break;
1031	>	case NATIVE_ETHER_RSRV:
1032	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1033		break;
1034	<	case NATIVE_R_GET_RESOURCE:
1035	<	r_get_resource();
1034	>	case NATIVE_SYNC_HOOK:
1035	>	gpr(3) = NQD_sync_hook(gpr(3));
1036	>	break;
1037	>	case NATIVE_BITBLT_HOOK:
1038	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1039	>	break;
1040	>	case NATIVE_BITBLT:
1041	>	NQD_bitblt(gpr(3));
1042	>	break;
1043	>	case NATIVE_FILLRECT_HOOK:
1044	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1045	>	break;
1046	>	case NATIVE_INVRECT:
1047	>	NQD_invrect(gpr(3));
1048	>	break;
1049	>	case NATIVE_FILLRECT:
1050	>	NQD_fillrect(gpr(3));
1051		break;
1052		case NATIVE_SERIAL_NOTHING:
1053		case NATIVE_SERIAL_OPEN:
#	Line 761 | Line 1066 | static void NativeOp(int selector)
1066		SerialStatus,
1067		SerialClose
1068		};
1069	<	GPR(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](GPR(3), GPR(4));
1069	>	gpr(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](gpr(3), gpr(4));
1070		break;
1071		}
1072	<	case NATIVE_DISABLE_INTERRUPT:
1073	<	DisableInterrupt();
1074	<	break;
1075	<	case NATIVE_ENABLE_INTERRUPT:
1076	<	EnableInterrupt();
1072	>	case NATIVE_GET_RESOURCE:
1073	>	case NATIVE_GET_1_RESOURCE:
1074	>	case NATIVE_GET_IND_RESOURCE:
1075	>	case NATIVE_GET_1_IND_RESOURCE:
1076	>	case NATIVE_R_GET_RESOURCE: {
1077	>	typedef void (*GetResourceCallback)(void);
1078	>	static const GetResourceCallback get_resource_callbacks[] = {
1079	>	::get_resource,
1080	>	::get_1_resource,
1081	>	::get_ind_resource,
1082	>	::get_1_ind_resource,
1083	>	::r_get_resource
1084	>	};
1085	>	get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1086		break;
1087	+	}
1088		case NATIVE_MAKE_EXECUTABLE:
1089	<	MakeExecutable(0, (void *)GPR(4), GPR(5));
1089	>	MakeExecutable(0, gpr(4), gpr(5));
1090	>	break;
1091	>	case NATIVE_CHECK_LOAD_INVOC:
1092	>	check_load_invoc(gpr(3), gpr(4), gpr(5));
1093		break;
1094		default:
1095		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
1096		QuitEmulator();
1097		break;
1098		}
781	–	}
1099
1100	<	/*
1101	<	*  Execute native subroutine (LR must contain return address)
1102	<	*/
786	<
787	<	void ExecuteNative(int selector)
788	<	{
789	<	uint32 tvect[2];
790	<	tvect[0] = tswap32(POWERPC_NATIVE_OP_FUNC(selector));
791	<	tvect[1] = 0; // Fake TVECT
792	<	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
793	<	M68kRegisters r;
794	<	Execute68k((uint32)&desc, &r);
1100	>	#if EMUL_TIME_STATS
1101	>	native_exec_time += (clock() - native_exec_start);
1102	>	#endif
1103		}
1104
1105		/*
#	Line 802 | Line 1110 | void ExecuteNative(int selector)
1110
1111		void Execute68k(uint32 pc, M68kRegisters *r)
1112		{
1113	<	current_cpu->execute_68k(pc, r);
1113	>	ppc_cpu->execute_68k(pc, r);
1114		}
1115
1116		/*
#	Line 812 | Line 1120 | void Execute68k(uint32 pc, M68kRegisters
1120
1121		void Execute68kTrap(uint16 trap, M68kRegisters *r)
1122		{
1123	<	uint16 proc[2];
1124	<	proc[0] = htons(trap);
1125	<	proc[1] = htons(M68K_RTS);
1126	<	Execute68k((uint32)proc, r);
1123	>	SheepVar proc_var(4);
1124	>	uint32 proc = proc_var.addr();
1125	>	WriteMacInt16(proc, trap);
1126	>	WriteMacInt16(proc + 2, M68K_RTS);
1127	>	Execute68k(proc, r);
1128		}
1129
1130		/*
#	Line 824 | Line 1133 | void Execute68kTrap(uint16 trap, M68kReg
1133
1134		uint32 call_macos(uint32 tvect)
1135		{
1136	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1136	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1137		}
1138
1139		uint32 call_macos1(uint32 tvect, uint32 arg1)
1140		{
1141		const uint32 args[] = { arg1 };
1142	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1142	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1143		}
1144
1145		uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1146		{
1147		const uint32 args[] = { arg1, arg2 };
1148	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1148	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1149		}
1150
1151		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1152		{
1153		const uint32 args[] = { arg1, arg2, arg3 };
1154	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1154	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1155		}
1156
1157		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1158		{
1159		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1160	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1160	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1161		}
1162
1163		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1164		{
1165		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1166	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1166	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1167		}
1168
1169		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1170		{
1171		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1172	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1172	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1173		}
1174
1175		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1176		{
1177		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1178	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1178	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1179		}
1180
1181		/*
#	Line 875 | Line 1184 | uint32 call_macos7(uint32 tvect, uint32
1184
1185		void get_resource(void)
1186		{
1187	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1187	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1188		}
1189
1190		void get_1_resource(void)
1191		{
1192	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1192	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1193		}
1194
1195		void get_ind_resource(void)
1196		{
1197	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1197	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1198		}
1199
1200		void get_1_ind_resource(void)
1201		{
1202	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1202	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1203		}
1204
1205		void r_get_resource(void)
1206		{
1207	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1207	>	ppc_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1208		}

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