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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.10 by gbeauche, 2003-10-26T13:59:03Z vs.
Revision 1.66 by gbeauche, 2005-12-06T22:25:13Z

#	Line 1 \| Line 1
1		/*
2		* sheepshaver_glue.cpp - Glue Kheperix CPU to SheepShaver CPU engine interface
3		*
4	<	* SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
4	>	* SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig
5		*
6		* This program is free software; you can redistribute it and/or modify
7		* it under the terms of the GNU General Public License as published by
#	Line 28 \| Line 28
28		#include "macos_util.h"
29		#include "block-alloc.hpp"
30		#include "sigsegv.h"
31	–	#include "spcflags.h"
31		#include "cpu/ppc/ppc-cpu.hpp"
32		#include "cpu/ppc/ppc-operations.hpp"
33	+	#include "cpu/ppc/ppc-instructions.hpp"
34	+	#include "thunks.h"
35
36		// Used for NativeOp trampolines
37		#include "video.h"
38		#include "name_registry.h"
39		#include "serial.h"
40	+	#include "ether.h"
41	+	#include "timer.h"
42
43		#include <stdio.h>
44	+	#include <stdlib.h>
45	+	#ifdef HAVE_MALLOC_H
46	+	#include <malloc.h>
47	+	#endif
48	+
49	+	#ifdef USE_SDL_VIDEO
50	+	#include <SDL_events.h>
51	+	#endif
52
53		#if ENABLE_MON
54		#include "mon.h"
#	Line 47 \| Line 58
58		#define DEBUG 0
59		#include "debug.h"
60
61	+	// Emulation time statistics
62	+	#ifndef EMUL_TIME_STATS
63	+	#define EMUL_TIME_STATS 0
64	+	#endif
65	+
66	+	#if EMUL_TIME_STATS
67	+	static clock_t emul_start_time;
68	+	static uint32 interrupt_count = 0, ppc_interrupt_count = 0;
69	+	static clock_t interrupt_time = 0;
70	+	static uint32 exec68k_count = 0;
71	+	static clock_t exec68k_time = 0;
72	+	static uint32 native_exec_count = 0;
73	+	static clock_t native_exec_time = 0;
74	+	static uint32 macos_exec_count = 0;
75	+	static clock_t macos_exec_time = 0;
76	+	#endif
77	+
78		static void enter_mon(void)
79		{
80		// Start up mon in real-mode
#	Line 56 \| Line 84 \| static void enter_mon(void)
84		#endif
85		}
86
87	<	// Enable multicore (main/interrupts) cpu emulation?
88	<	#define MULTICORE_CPU (ASYNC_IRQ ? 1 : 0)
87	>	// From main_*.cpp
88	>	extern uintptr SignalStackBase();
89	>
90	>	// From rsrc_patches.cpp
91	>	extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h);
92	>
93	>	// PowerPC EmulOp to exit from emulation looop
94	>	const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP \| 1;
95
96		// Enable Execute68k() safety checks?
97		#define SAFE_EXEC_68K 1
#	Line 72 \| Line 106 \| static void enter_mon(void)
106		#define INTERRUPTS_IN_NATIVE_MODE 1
107
108		// Pointer to Kernel Data
109	<	static KernelData * const kernel_data = (KernelData *)KERNEL_DATA_BASE;
109	>	static KernelData * kernel_data;
110	>
111	>	// SIGSEGV handler
112	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
113	>
114	>	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
115	>	// Special trampolines for EmulOp and NativeOp
116	>	static uint8 *emul_op_trampoline;
117	>	static uint8 *native_op_trampoline;
118	>	#endif
119	>
120	>	// JIT Compiler enabled?
121	>	static inline bool enable_jit_p()
122	>	{
123	>	return PrefsFindBool("jit");
124	>	}
125
126
127		/**
128		* PowerPC emulator glue with special 'sheep' opcodes
129		**/
130
131	<	struct sheepshaver_exec_return { };
131	>	enum {
132	>	PPC_I(SHEEP) = PPC_I(MAX),
133	>	PPC_I(SHEEP_MAX)
134	>	};
135
136		class sheepshaver_cpu
137		: public powerpc_cpu
#	Line 92 \| Line 144 \| public:
144		// Constructor
145		sheepshaver_cpu();
146
147	<	// Condition Register accessors
147	>	// CR & XER accessors
148		uint32 get_cr() const { return cr().get(); }
149		void set_cr(uint32 v) { cr().set(v); }
150	+	uint32 get_xer() const { return xer().get(); }
151	+	void set_xer(uint32 v) { xer().set(v); }
152
153	<	// 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 108 \| Line 165 \| public:
165		// Execute MacOS/PPC code
166		uint32 execute_macos_code(uint32 tvect, int nargs, uint32 const *args);
167
168	+	#if PPC_ENABLE_JIT
169	+	// Compile one instruction
170	+	virtual int compile1(codegen_context_t & cg_context);
171	+	#endif
172		// Resource manager thunk
173		void get_resource(uint32 old_get_resource);
174
175		// Handle MacOS interrupt
176		void interrupt(uint32 entry);
116	–	void handle_interrupt();
177
178	<	// spcflags for interrupts handling
179	<	static uint32 spcflags;
120	<
121	<	// Lazy memory allocator (one item at a time)
122	<	void *operator new(size_t size)
123	<	{ return allocator_helper< sheepshaver_cpu, lazy_allocator >::allocate(); }
124	<	void operator delete(void *p)
125	<	{ allocator_helper< sheepshaver_cpu, lazy_allocator >::deallocate(p); }
126	<	// FIXME: really make surre array allocation fail at link time?
127	<	void *operator new[](size_t);
128	<	void operator delete[](void *p);
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
131	–	uint32 sheepshaver_cpu::spcflags = 0;
132	–	lazy_allocator< sheepshaver_cpu > allocator_helper< sheepshaver_cpu, lazy_allocator >::allocator;
133	–
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		{
142	–	#ifndef PPC_NO_STATIC_II_INDEX_TABLE
143	–	static bool initialized = false;
144	–	if (initialized)
145	–	return;
146	–	initialized = true;
147	–	#endif
148	–
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 163 \| Line 205 \| void sheepshaver_cpu::init_decoder()
205		}
206		}
207
166	–	// Forward declaration for native opcode handler
167	–	static void NativeOp(int selector);
168	–
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 189 \| Line 252 \| void sheepshaver_cpu::execute_sheep(uint
252		break;
253
254		case 1: // EXEC_RETURN
255	<	throw sheepshaver_exec_return();
255	>	spcflags().set(SPCFLAG_CPU_EXEC_RETURN);
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;
205	<	WriteMacInt32(XLM_68K_R25, gpr(25));
206	<	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
207	<	for (int i = 0; i < 8; i++)
208	<	r68.d[i] = gpr(8 + i);
209	<	for (int i = 0; i < 7; i++)
210	<	r68.a[i] = gpr(16 + i);
211	<	r68.a[7] = gpr(1);
212	<	EmulOp(&r68, gpr(24), EMUL_OP_field::extract(opcode) - 3);
213	<	for (int i = 0; i < 8; i++)
214	<	gpr(8 + i) = r68.d[i];
215	<	for (int i = 0; i < 7; i++)
216	<	gpr(16 + i) = r68.a[i];
217	<	gpr(1) = r68.a[7];
218	<	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
266	>	default: // EMUL_OP
267	>	execute_emul_op(EMUL_OP_field::extract(opcode) - 3);
268		pc() += 4;
269		break;
270		}
222	–	}
271		}
272
273	<	// Execution loop
274	<	void sheepshaver_cpu::execute(uint32 entry, bool enable_cache)
275	<	{
276	<	try {
277	<	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	<	catch (sheepshaver_exec_return const &) {
401	<	// Nothing, simply return
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		}
234	–	catch (...) {
235	–	printf("ERROR: execute() received an unknown exception!\n");
236	–	QuitEmulator();
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);
249	–	#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 271 \| 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 286 \| Line 474 \| void sheepshaver_cpu::interrupt(uint32 e
474		// Enter nanokernel
475		execute(entry);
476
289	–	#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 380 \| 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 423 \| 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 432 \| 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 442 \| Line 651 \| inline void sheepshaver_cpu::execute_ppc
651		}
652
653		// Resource Manager thunk
445	–	extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h);
446	–
654		inline void sheepshaver_cpu::get_resource(uint32 old_get_resource)
655		{
656		uint32 type = gpr(3);
#	Line 469 \| 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
474	<	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);
480	<	#if MULTICORE_CPU
481	<	interrupt_cpu->invalidate_cache_range(start, end);
482	<	#endif
483	<	}
484	<
485	<	static inline void cpu_push(sheepshaver_cpu *new_cpu)
486	<	{
487	<	#if MULTICORE_CPU
488	<	current_cpu = new_cpu;
489	<	#endif
490	<	}
491	<
492	<	static inline void cpu_pop()
493	<	{
494	<	#if MULTICORE_CPU
495	<	current_cpu = main_cpu;
496	<	#endif
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 524 \| 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);
540	<	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 548 \| 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
556	–	#if MULTICORE_CPU
557	–	// Initialize alternate CPU emulator to handle interrupts
558	–	interrupt_cpu = new sheepshaver_cpu();
559	–	#endif
560	–
561	–	// Install the handler for SIGSEGV
562	–	sigsegv_install_handler(sigsegv_handler);
563	–
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	+	}
830	+
831	+	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
832	+	// Initialize EmulOp trampolines
833	+	void init_emul_op_trampolines(basic_dyngen & dg)
834	+	{
835	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
836	+	func_t func;
837	+
838	+	// EmulOp
839	+	emul_op_trampoline = dg.gen_start();
840	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
841	+	dg.gen_invoke_CPU_T0(func);
842	+	dg.gen_exec_return();
843	+	dg.gen_end();
844	+
845	+	// NativeOp
846	+	native_op_trampoline = dg.gen_start();
847	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
848	+	dg.gen_invoke_CPU_T0(func);
849	+	dg.gen_exec_return();
850	+	dg.gen_end();
851	+
852	+	D(bug("EmulOp trampoline: %p\n", emul_op_trampoline));
853	+	D(bug("NativeOp trampoline: %p\n", native_op_trampoline));
854	+	}
855	+	#endif
856	+
857	+	/*
858		* Emulation loop
859		*/
860
861		void emul_ppc(uint32 entry)
862		{
863	<	current_cpu = main_cpu;
864	<	#if DEBUG
579	<	current_cpu->start_log();
863	>	#if 0
864	>	ppc_cpu->start_log();
865		#endif
866		// start emulation loop and enable code translation or caching
867	<	current_cpu->execute(entry, true);
867	>	ppc_cpu->execute(entry);
868		}
869
870		/*
871		* Handle PowerPC interrupt
872		*/
873
589	–	#if !ASYNC_IRQ
874		void TriggerInterrupt(void)
875		{
876	+	idle_resume();
877		#if 0
878		WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
879		#else
880		// Trigger interrupt to main cpu only
881	<	if (main_cpu)
882	<	main_cpu->trigger_interrupt();
881	>	if (ppc_cpu)
882	>	ppc_cpu->trigger_interrupt();
883		#endif
884		}
600	–	#endif
885
886	<	void sheepshaver_cpu::handle_interrupt(void)
886	>	void HandleInterrupt(powerpc_registers *r)
887		{
888	+	#ifdef USE_SDL_VIDEO
889	+	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
890	+	SDL_PumpEvents();
891	+	#endif
892	+
893		// Do nothing if interrupts are disabled
894		if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
895		return;
896
897	<	// Do nothing if there is no interrupt pending
898	<	if (InterruptFlags == 0)
899	<	return;
900	<
612	<	// Disable MacOS stack sniffer
613	<	WriteMacInt32(0x110, 0);
897	>	// Update interrupt count
898	>	#if EMUL_TIME_STATS
899	>	interrupt_count++;
900	>	#endif
901
902		// Interrupt action depends on current run mode
903		switch (ReadMacInt32(XLM_RUN_MODE)) {
904		case MODE_68K:
905		// 68k emulator active, trigger 68k interrupt level 1
619	–	assert(current_cpu == main_cpu);
906		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
907	<	set_cr(get_cr() \| tswap32(kernel_data->v[0x674 >> 2]));
907	>	r->cr.set(r->cr.get() \| tswap32(kernel_data->v[0x674 >> 2]));
908		break;
909
910		#if INTERRUPTS_IN_NATIVE_MODE
911		case MODE_NATIVE:
912		// 68k emulator inactive, in nanokernel?
913	<	assert(current_cpu == main_cpu);
914	<	if (gpr(1) != KernelDataAddr) {
913	>	if (r->gpr[1] != KernelDataAddr) {
914	>
915		// Prepare for 68k interrupt level 1
916		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
917		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 634 \| Line 920 \| void sheepshaver_cpu::handle_interrupt(v
920
921		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
922		DisableInterrupt();
637	–	cpu_push(interrupt_cpu);
923		if (ROMType == ROMTYPE_NEWWORLD)
924	<	current_cpu->interrupt(ROM_BASE + 0x312b1c);
924	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
925		else
926	<	current_cpu->interrupt(ROM_BASE + 0x312a3c);
642	<	cpu_pop();
926	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
927		}
928		break;
929		#endif
#	Line 648 \| Line 932 \| void sheepshaver_cpu::handle_interrupt(v
932		case MODE_EMUL_OP:
933		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
934		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
935	+	#if EMUL_TIME_STATS
936	+	const clock_t interrupt_start = clock();
937	+	#endif
938		#if 1
939		// Execute full 68k interrupt routine
940		M68kRegisters r;
941		uint32 old_r25 = ReadMacInt32(XLM_68K_R25); // Save interrupt level
942		WriteMacInt32(XLM_68K_R25, 0x21); // Execute with interrupt level 1
943	<	static const uint8 proc[] = {
943	>	static const uint8 proc_template[] = {
944		0x3f, 0x3c, 0x00, 0x00, // move.w #$0000,-(sp) (fake format word)
945		0x48, 0x7a, 0x00, 0x0a, // pea @1(pc) (return address)
946		0x40, 0xe7, // move sr,-(sp) (saved SR)
#	Line 661 \| Line 948 \| void sheepshaver_cpu::handle_interrupt(v
948		0x4e, 0xd0, // jmp (a0)
949		M68K_RTS >> 8, M68K_RTS & 0xff // @1
950		};
951	<	Execute68k((uint32)proc, &r);
951	>	BUILD_SHEEPSHAVER_PROCEDURE(proc);
952	>	Execute68k(proc, &r);
953		WriteMacInt32(XLM_68K_R25, old_r25); // Restore interrupt level
954		#else
955		// Only update cursor
#	Line 669 \| Line 957 \| void sheepshaver_cpu::handle_interrupt(v
957		if (InterruptFlags & INTFLAG_VIA) {
958		ClearInterruptFlag(INTFLAG_VIA);
959		ADBInterrupt();
960	<	ExecutePPC(VideoVBL);
960	>	ExecuteNative(NATIVE_VIDEO_VBL);
961		}
962		}
963		#endif
964	+	#if EMUL_TIME_STATS
965	+	interrupt_time += (clock() - interrupt_start);
966	+	#endif
967		}
968		break;
969		#endif
970		}
971		}
972
682	–	/*
683	–	* Execute NATIVE_OP opcode (called by PowerPC emulator)
684	–	*/
685	–
686	–	#define POWERPC_NATIVE_OP_INIT(LR, OP) \
687	–	tswap32(POWERPC_EMUL_OP \| ((LR) << 11) \| (((uint32)OP) << 6) \| 2)
688	–
689	–	// FIXME: Make sure 32-bit relocations are used
690	–	const uint32 NativeOpTable[NATIVE_OP_MAX] = {
691	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_PATCH_NAME_REGISTRY),
692	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_INSTALL_ACCEL),
693	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_VBL),
694	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_DO_DRIVER_IO),
695	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_IRQ),
696	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_INIT),
697	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_TERM),
698	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_OPEN),
699	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_CLOSE),
700	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_WPUT),
701	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_RSRV),
702	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_NOTHING),
703	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_OPEN),
704	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_IN),
705	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_OUT),
706	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CONTROL),
707	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_STATUS),
708	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CLOSE),
709	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_RESOURCE),
710	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_RESOURCE),
711	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_IND_RESOURCE),
712	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_IND_RESOURCE),
713	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_R_GET_RESOURCE),
714	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_DISABLE_INTERRUPT),
715	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_ENABLE_INTERRUPT),
716	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_MAKE_EXECUTABLE),
717	–	};
718	–
973		static void get_resource(void);
974		static void get_1_resource(void);
975		static void get_ind_resource(void);
976		static void get_1_ind_resource(void);
977		static void r_get_resource(void);
978
979	<	#define GPR(REG) current_cpu->gpr(REG)
980	<
727	<	static void NativeOp(int selector)
979	>	// Execute NATIVE_OP routine
980	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
981		{
982	+	#if EMUL_TIME_STATS
983	+	native_exec_count++;
984	+	const clock_t native_exec_start = clock();
985	+	#endif
986	+
987		switch (selector) {
988		case NATIVE_PATCH_NAME_REGISTRY:
989		DoPatchNameRegistry();
#	Line 737 \| Line 995 \| static void NativeOp(int selector)
995		VideoVBL();
996		break;
997		case NATIVE_VIDEO_DO_DRIVER_IO:
998	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void )GPR(3), (void )GPR(4),
741	<	(void *)GPR(5), GPR(6), GPR(7));
998	>	gpr(3) = (int32)(int16)VideoDoDriverIO(gpr(3), gpr(4), gpr(5), gpr(6), gpr(7));
999		break;
1000	<	case NATIVE_GET_RESOURCE:
1001	<	get_resource();
1000	>	case NATIVE_ETHER_AO_GET_HWADDR:
1001	>	AO_get_ethernet_address(gpr(3));
1002		break;
1003	<	case NATIVE_GET_1_RESOURCE:
1004	<	get_1_resource();
1003	>	case NATIVE_ETHER_AO_ADD_MULTI:
1004	>	AO_enable_multicast(gpr(3));
1005		break;
1006	<	case NATIVE_GET_IND_RESOURCE:
1007	<	get_ind_resource();
1006	>	case NATIVE_ETHER_AO_DEL_MULTI:
1007	>	AO_disable_multicast(gpr(3));
1008		break;
1009	<	case NATIVE_GET_1_IND_RESOURCE:
1010	<	get_1_ind_resource();
1009	>	case NATIVE_ETHER_AO_SEND_PACKET:
1010	>	AO_transmit_packet(gpr(3));
1011	>	break;
1012	>	case NATIVE_ETHER_IRQ:
1013	>	EtherIRQ();
1014	>	break;
1015	>	case NATIVE_ETHER_INIT:
1016	>	gpr(3) = InitStreamModule((void *)gpr(3));
1017	>	break;
1018	>	case NATIVE_ETHER_TERM:
1019	>	TerminateStreamModule();
1020	>	break;
1021	>	case NATIVE_ETHER_OPEN:
1022	>	gpr(3) = ether_open((queue_t )gpr(3), (void )gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1023	>	break;
1024	>	case NATIVE_ETHER_CLOSE:
1025	>	gpr(3) = ether_close((queue_t )gpr(3), gpr(4), (void )gpr(5));
1026	>	break;
1027	>	case NATIVE_ETHER_WPUT:
1028	>	gpr(3) = ether_wput((queue_t )gpr(3), (mblk_t )gpr(4));
1029	>	break;
1030	>	case NATIVE_ETHER_RSRV:
1031	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1032	>	break;
1033	>	case NATIVE_SYNC_HOOK:
1034	>	gpr(3) = NQD_sync_hook(gpr(3));
1035		break;
1036	<	case NATIVE_R_GET_RESOURCE:
1037	<	r_get_resource();
1036	>	case NATIVE_BITBLT_HOOK:
1037	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1038	>	break;
1039	>	case NATIVE_BITBLT:
1040	>	NQD_bitblt(gpr(3));
1041	>	break;
1042	>	case NATIVE_FILLRECT_HOOK:
1043	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1044	>	break;
1045	>	case NATIVE_INVRECT:
1046	>	NQD_invrect(gpr(3));
1047	>	break;
1048	>	case NATIVE_FILLRECT:
1049	>	NQD_fillrect(gpr(3));
1050		break;
1051		case NATIVE_SERIAL_NOTHING:
1052		case NATIVE_SERIAL_OPEN:
#	Line 772 \| Line 1065 \| static void NativeOp(int selector)
1065		SerialStatus,
1066		SerialClose
1067		};
1068	<	GPR(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](GPR(3), GPR(4));
1068	>	gpr(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](gpr(3), gpr(4));
1069		break;
1070		}
1071	<	case NATIVE_DISABLE_INTERRUPT:
1072	<	DisableInterrupt();
1073	<	break;
1074	<	case NATIVE_ENABLE_INTERRUPT:
1075	<	EnableInterrupt();
1071	>	case NATIVE_GET_RESOURCE:
1072	>	case NATIVE_GET_1_RESOURCE:
1073	>	case NATIVE_GET_IND_RESOURCE:
1074	>	case NATIVE_GET_1_IND_RESOURCE:
1075	>	case NATIVE_R_GET_RESOURCE: {
1076	>	typedef void (*GetResourceCallback)(void);
1077	>	static const GetResourceCallback get_resource_callbacks[] = {
1078	>	::get_resource,
1079	>	::get_1_resource,
1080	>	::get_ind_resource,
1081	>	::get_1_ind_resource,
1082	>	::r_get_resource
1083	>	};
1084	>	get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1085		break;
1086	+	}
1087		case NATIVE_MAKE_EXECUTABLE:
1088	<	MakeExecutable(0, (void *)GPR(4), GPR(5));
1088	>	MakeExecutable(0, gpr(4), gpr(5));
1089	>	break;
1090	>	case NATIVE_CHECK_LOAD_INVOC:
1091	>	check_load_invoc(gpr(3), gpr(4), gpr(5));
1092		break;
1093		default:
1094		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
1095		QuitEmulator();
1096		break;
1097		}
792	–	}
1098
1099	<	/*
1100	<	* Execute native subroutine (LR must contain return address)
1101	<	*/
797	<
798	<	void ExecuteNative(int selector)
799	<	{
800	<	uint32 tvect[2];
801	<	tvect[0] = tswap32(POWERPC_NATIVE_OP_FUNC(selector));
802	<	tvect[1] = 0; // Fake TVECT
803	<	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
804	<	M68kRegisters r;
805	<	Execute68k((uint32)&desc, &r);
1099	>	#if EMUL_TIME_STATS
1100	>	native_exec_time += (clock() - native_exec_start);
1101	>	#endif
1102		}
1103
1104		/*
#	Line 813 \| Line 1109 \| void ExecuteNative(int selector)
1109
1110		void Execute68k(uint32 pc, M68kRegisters *r)
1111		{
1112	<	current_cpu->execute_68k(pc, r);
1112	>	ppc_cpu->execute_68k(pc, r);
1113		}
1114
1115		/*
#	Line 823 \| Line 1119 \| void Execute68k(uint32 pc, M68kRegisters
1119
1120		void Execute68kTrap(uint16 trap, M68kRegisters *r)
1121		{
1122	<	uint16 proc[2];
1123	<	proc[0] = htons(trap);
1124	<	proc[1] = htons(M68K_RTS);
1125	<	Execute68k((uint32)proc, r);
1122	>	SheepVar proc_var(4);
1123	>	uint32 proc = proc_var.addr();
1124	>	WriteMacInt16(proc, trap);
1125	>	WriteMacInt16(proc + 2, M68K_RTS);
1126	>	Execute68k(proc, r);
1127		}
1128
1129		/*
#	Line 835 \| Line 1132 \| void Execute68kTrap(uint16 trap, M68kReg
1132
1133		uint32 call_macos(uint32 tvect)
1134		{
1135	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1135	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1136		}
1137
1138		uint32 call_macos1(uint32 tvect, uint32 arg1)
1139		{
1140		const uint32 args[] = { arg1 };
1141	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1141	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1142		}
1143
1144		uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1145		{
1146		const uint32 args[] = { arg1, arg2 };
1147	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1147	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1148		}
1149
1150		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1151		{
1152		const uint32 args[] = { arg1, arg2, arg3 };
1153	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1153	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1154		}
1155
1156		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1157		{
1158		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1159	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1159	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1160		}
1161
1162		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1163		{
1164		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1165	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1165	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1166		}
1167
1168		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1169		{
1170		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1171	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1171	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1172		}
1173
1174		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1175		{
1176		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1177	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1177	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1178		}
1179
1180		/*
#	Line 886 \| Line 1183 \| uint32 call_macos7(uint32 tvect, uint32
1183
1184		void get_resource(void)
1185		{
1186	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1186	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1187		}
1188
1189		void get_1_resource(void)
1190		{
1191	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1191	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1192		}
1193
1194		void get_ind_resource(void)
1195		{
1196	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1196	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1197		}
1198
1199		void get_1_ind_resource(void)
1200		{
1201	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1201	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1202		}
1203
1204		void r_get_resource(void)
1205		{
1206	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1206	>	ppc_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1207		}

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Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents): Revision 1.10 by gbeauche, 2003-10-26T13:59:03Z vs. Revision 1.66 by gbeauche, 2005-12-06T22:25:13Z

Diff Legend

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.10 by gbeauche, 2003-10-26T13:59:03Z vs.
Revision 1.66 by gbeauche, 2005-12-06T22:25:13Z