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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.3 by gbeauche, 2003-09-29T07:05:15Z vs.
Revision 1.64 by gbeauche, 2005-06-30T10:17:58Z

#	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"
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 56 \| 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 71 \| 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 {
76	<	uint32 v[0x400];
77	<	};
108	>	// Pointer to Kernel Data
109	>	static KernelData * kernel_data;
110
111	<	// Kernel Data
112	<	struct KernelData {
81	<	uint32 v[0x400];
82	<	EmulatorData ed;
83	<	};
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 100 \| Line 141 \| class sheepshaver_cpu
141
142		public:
143
144	<	sheepshaver_cpu()
145	<	: powerpc_cpu()
105	<	{ 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	<	// Execution loop
154	<	void execute(uint32 pc);
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 120 \| 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(); }
135	<	void operator delete(void *p)
136	<	{ allocator_helper< sheepshaver_cpu, lazy_allocator >::deallocate(p); }
137	<	// FIXME: really make surre array allocation fail at link time?
138	<	void *operator new[](size_t);
139	<	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 sheepshaver_cpu objects aligned on 16-byte boundaries
187	>	// FORMAT: [ alignment ] magic identifier, offset to malloc'ed data, sheepshaver_cpu data
188	>	void *sheepshaver_cpu::operator new(size_t size)
189	>	{
190	>	const int ALIGN = 16;
191	>
192	>	// Allocate enough space for sheepshaver_cpu data + signature + align pad
193	>	uint8 ptr = (uint8 )malloc(size + ALIGN * 2);
194	>	if (ptr == NULL)
195	>	throw std::bad_alloc();
196	>
197	>	// Align memory
198	>	int ofs = 0;
199	>	while ((((uintptr)ptr) % ALIGN) != 0)
200	>	ofs++, ptr++;
201	>
202	>	// Insert signature and offset
203	>	struct aligned_block_t {
204	>	uint32 pad[(ALIGN - 8) / 4];
205	>	uint32 signature;
206	>	uint32 offset;
207	>	uint8 data[sizeof(sheepshaver_cpu)];
208	>	};
209	>	aligned_block_t blk = (aligned_block_t )ptr;
210	>	blk->signature = FOURCC('S','C','P','U');
211	>	blk->offset = ofs + (&blk->data[0] - (uint8 *)blk);
212	>	assert((((uintptr)&blk->data) % ALIGN) == 0);
213	>	return &blk->data[0];
214	>	}
215
216	<	void sheepshaver_cpu::init_decoder()
216	>	void sheepshaver_cpu::operator delete(void *p)
217		{
218	<	#ifndef PPC_NO_STATIC_II_INDEX_TABLE
219	<	static bool initialized = false;
220	<	if (initialized)
221	<	return;
222	<	initialized = true;
223	<	#endif
218	>	uint32 blk = (uint32 )p;
219	>	assert(blk[-2] == FOURCC('S','C','P','U'));
220	>	void ptr = (void )(((uintptr)p) - blk[-1]);
221	>	free(ptr);
222	>	}
223	>
224	>	sheepshaver_cpu::sheepshaver_cpu()
225	>	: powerpc_cpu(enable_jit_p())
226	>	{
227	>	init_decoder();
228	>	}
229
230	+	void sheepshaver_cpu::init_decoder()
231	+	{
232		static const instr_info_t sheep_ii_table[] = {
233		{ "sheep",
234	<	(execute_fn)&sheepshaver_cpu::execute_sheep,
234	>	(execute_pmf)&sheepshaver_cpu::execute_sheep,
235		NULL,
236	<	D_form, 6, 0, CFLOW_TRAP
236	>	PPC_I(SHEEP),
237	>	D_form, 6, 0, CFLOW_JUMP \| CFLOW_TRAP
238		}
239		};
240
#	Line 168 \| Line 247 \| void sheepshaver_cpu::init_decoder()
247		}
248		}
249
171	–	// Forward declaration for native opcode handler
172	–	static void NativeOp(int selector);
173	–
250		/* NativeOp instruction format:
251	<	+------------+--------------------------+--+----------+------------+
252	<	\| 6 \| \|FN\| OP \| 2 \|
253	<	+------------+--------------------------+--+----------+------------+
254	<	0 5 \|6 19 20 21 25 26 31
251	>	+------------+-------------------------+--+-----------+------------+
252	>	\| 6 \| \|FN\| OP \| 2 \|
253	>	+------------+-------------------------+--+-----------+------------+
254	>	0 5 \|6 18 19 20 25 26 31
255		*/
256
257	<	typedef bit_field< 20, 20 > FN_field;
258	<	typedef bit_field< 21, 25 > NATIVE_OP_field;
257	>	typedef bit_field< 19, 19 > FN_field;
258	>	typedef bit_field< 20, 25 > NATIVE_OP_field;
259		typedef bit_field< 26, 31 > EMUL_OP_field;
260
261	+	// Execute EMUL_OP routine
262	+	void sheepshaver_cpu::execute_emul_op(uint32 emul_op)
263	+	{
264	+	M68kRegisters r68;
265	+	WriteMacInt32(XLM_68K_R25, gpr(25));
266	+	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
267	+	for (int i = 0; i < 8; i++)
268	+	r68.d[i] = gpr(8 + i);
269	+	for (int i = 0; i < 7; i++)
270	+	r68.a[i] = gpr(16 + i);
271	+	r68.a[7] = gpr(1);
272	+	uint32 saved_cr = get_cr() & 0xff9fffff; // mask_operand::compute(11, 8)
273	+	uint32 saved_xer = get_xer();
274	+	EmulOp(&r68, gpr(24), emul_op);
275	+	set_cr(saved_cr);
276	+	set_xer(saved_xer);
277	+	for (int i = 0; i < 8; i++)
278	+	gpr(8 + i) = r68.d[i];
279	+	for (int i = 0; i < 7; i++)
280	+	gpr(16 + i) = r68.a[i];
281	+	gpr(1) = r68.a[7];
282	+	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
283	+	}
284	+
285		// Execute SheepShaver instruction
286		void sheepshaver_cpu::execute_sheep(uint32 opcode)
287		{
#	Line 192 \| Line 292 \| void sheepshaver_cpu::execute_sheep(uint
292		case 0: // EMUL_RETURN
293		QuitEmulator();
294		break;
295	<
295	>
296		case 1: // EXEC_RETURN
297	<	throw sheepshaver_exec_return();
297	>	spcflags().set(SPCFLAG_CPU_EXEC_RETURN);
298		break;
299
300		case 2: // EXEC_NATIVE
301	<	NativeOp(NATIVE_OP_field::extract(opcode));
301	>	execute_native_op(NATIVE_OP_field::extract(opcode));
302		if (FN_field::test(opcode))
303		pc() = lr();
304		else
305		pc() += 4;
306		break;
307
308	<	default: { // EMUL_OP
309	<	M68kRegisters r68;
210	<	WriteMacInt32(XLM_68K_R25, gpr(25));
211	<	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
212	<	for (int i = 0; i < 8; i++)
213	<	r68.d[i] = gpr(8 + i);
214	<	for (int i = 0; i < 7; i++)
215	<	r68.a[i] = gpr(16 + i);
216	<	r68.a[7] = gpr(1);
217	<	EmulOp(&r68, gpr(24), EMUL_OP_field::extract(opcode) - 3);
218	<	for (int i = 0; i < 8; i++)
219	<	gpr(8 + i) = r68.d[i];
220	<	for (int i = 0; i < 7; i++)
221	<	gpr(16 + i) = r68.a[i];
222	<	gpr(1) = r68.a[7];
223	<	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
308	>	default: // EMUL_OP
309	>	execute_emul_op(EMUL_OP_field::extract(opcode) - 3);
310		pc() += 4;
311		break;
312		}
227	–	}
313		}
314
315	<	// Checks for pending interrupts
316	<	struct execute_nothing {
317	<	static inline void execute(powerpc_cpu *) { }
318	<	};
315	>	// Compile one instruction
316	>	#if PPC_ENABLE_JIT
317	>	int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
318	>	{
319	>	const instr_info_t *ii = cg_context.instr_info;
320	>	if (ii->mnemo != PPC_I(SHEEP))
321	>	return COMPILE_FAILURE;
322	>
323	>	int status = COMPILE_FAILURE;
324	>	powerpc_dyngen & dg = cg_context.codegen;
325	>	uint32 opcode = cg_context.opcode;
326
327	<	static void HandleInterrupt(void);
327	>	switch (opcode & 0x3f) {
328	>	case 0: // EMUL_RETURN
329	>	dg.gen_invoke(QuitEmulator);
330	>	status = COMPILE_CODE_OK;
331	>	break;
332
333	<	struct execute_spcflags_check {
334	<	static inline void execute(powerpc_cpu *cpu) {
335	<	if (SPCFLAGS_TEST(SPCFLAG_ALL_BUT_EXEC_RETURN)) {
336	<	if (SPCFLAGS_TEST( SPCFLAG_ENTER_MON )) {
337	<	SPCFLAGS_CLEAR( SPCFLAG_ENTER_MON );
338	<	enter_mon();
339	<	}
340	<	if (SPCFLAGS_TEST( SPCFLAG_DOINT )) {
341	<	SPCFLAGS_CLEAR( SPCFLAG_DOINT );
342	<	HandleInterrupt();
343	<	}
344	<	if (SPCFLAGS_TEST( SPCFLAG_INT )) {
345	<	SPCFLAGS_CLEAR( SPCFLAG_INT );
346	<	SPCFLAGS_SET( SPCFLAG_DOINT );
333	>	case 1: // EXEC_RETURN
334	>	dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN);
335	>	// Don't check for pending interrupts, we do know we have to
336	>	// get out of this block ASAP
337	>	dg.gen_exec_return();
338	>	status = COMPILE_EPILOGUE_OK;
339	>	break;
340	>
341	>	case 2: { // EXEC_NATIVE
342	>	uint32 selector = NATIVE_OP_field::extract(opcode);
343	>	switch (selector) {
344	>	#if !PPC_REENTRANT_JIT
345	>	// Filter out functions that may invoke Execute68k() or
346	>	// CallMacOS(), this would break reentrancy as they could
347	>	// invalidate the translation cache and even overwrite
348	>	// continuation code when we are done with them.
349	>	case NATIVE_PATCH_NAME_REGISTRY:
350	>	dg.gen_invoke(DoPatchNameRegistry);
351	>	status = COMPILE_CODE_OK;
352	>	break;
353	>	case NATIVE_VIDEO_INSTALL_ACCEL:
354	>	dg.gen_invoke(VideoInstallAccel);
355	>	status = COMPILE_CODE_OK;
356	>	break;
357	>	case NATIVE_VIDEO_VBL:
358	>	dg.gen_invoke(VideoVBL);
359	>	status = COMPILE_CODE_OK;
360	>	break;
361	>	case NATIVE_GET_RESOURCE:
362	>	case NATIVE_GET_1_RESOURCE:
363	>	case NATIVE_GET_IND_RESOURCE:
364	>	case NATIVE_GET_1_IND_RESOURCE:
365	>	case NATIVE_R_GET_RESOURCE: {
366	>	static const uint32 get_resource_ptr[] = {
367	>	XLM_GET_RESOURCE,
368	>	XLM_GET_1_RESOURCE,
369	>	XLM_GET_IND_RESOURCE,
370	>	XLM_GET_1_IND_RESOURCE,
371	>	XLM_R_GET_RESOURCE
372	>	};
373	>	uint32 old_get_resource = ReadMacInt32(get_resource_ptr[selector - NATIVE_GET_RESOURCE]);
374	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
375	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::get_resource).ptr();
376	>	dg.gen_invoke_CPU_im(func, old_get_resource);
377	>	status = COMPILE_CODE_OK;
378	>	break;
379	>	}
380	>	case NATIVE_CHECK_LOAD_INVOC:
381	>	dg.gen_load_T0_GPR(3);
382	>	dg.gen_load_T1_GPR(4);
383	>	dg.gen_se_16_32_T1();
384	>	dg.gen_load_T2_GPR(5);
385	>	dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc);
386	>	status = COMPILE_CODE_OK;
387	>	break;
388	>	#endif
389	>	case NATIVE_BITBLT:
390	>	dg.gen_load_T0_GPR(3);
391	>	dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
392	>	status = COMPILE_CODE_OK;
393	>	break;
394	>	case NATIVE_INVRECT:
395	>	dg.gen_load_T0_GPR(3);
396	>	dg.gen_invoke_T0((void (*)(uint32))NQD_invrect);
397	>	status = COMPILE_CODE_OK;
398	>	break;
399	>	case NATIVE_FILLRECT:
400	>	dg.gen_load_T0_GPR(3);
401	>	dg.gen_invoke_T0((void (*)(uint32))NQD_fillrect);
402	>	status = COMPILE_CODE_OK;
403	>	break;
404	>	}
405	>	// Could we fully translate this NativeOp?
406	>	if (status == COMPILE_CODE_OK) {
407	>	if (!FN_field::test(opcode))
408	>	cg_context.done_compile = false;
409	>	else {
410	>	dg.gen_load_A0_LR();
411	>	dg.gen_set_PC_A0();
412	>	cg_context.done_compile = true;
413		}
414	+	break;
415	+	}
416	+	#if PPC_REENTRANT_JIT
417	+	// Try to execute NativeOp trampoline
418	+	if (!FN_field::test(opcode))
419	+	dg.gen_set_PC_im(cg_context.pc + 4);
420	+	else {
421	+	dg.gen_load_A0_LR();
422	+	dg.gen_set_PC_A0();
423	+	}
424	+	dg.gen_mov_32_T0_im(selector);
425	+	dg.gen_jmp(native_op_trampoline);
426	+	cg_context.done_compile = true;
427	+	status = COMPILE_EPILOGUE_OK;
428	+	break;
429	+	#endif
430	+	// Invoke NativeOp handler
431	+	if (!FN_field::test(opcode)) {
432	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
433	+	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
434	+	dg.gen_invoke_CPU_im(func, selector);
435	+	cg_context.done_compile = false;
436	+	status = COMPILE_CODE_OK;
437		}
438	+	// Otherwise, let it generate a call to execute_sheep() which
439	+	// will cause necessary updates to the program counter
440	+	break;
441		}
254	–	};
442
443	<	// Execution loop
444	<	void sheepshaver_cpu::execute(uint32 entry)
445	<	{
446	<	try {
447	<	pc() = entry;
448	<	powerpc_cpu::do_execute<execute_nothing, execute_spcflags_check>();
449	<	}
450	<	catch (sheepshaver_exec_return const &) {
451	<	// Nothing, simply return
443	>	default: { // EMUL_OP
444	>	uint32 emul_op = EMUL_OP_field::extract(opcode) - 3;
445	>	#if PPC_REENTRANT_JIT
446	>	// Try to execute EmulOp trampoline
447	>	dg.gen_set_PC_im(cg_context.pc + 4);
448	>	dg.gen_mov_32_T0_im(emul_op);
449	>	dg.gen_jmp(emul_op_trampoline);
450	>	cg_context.done_compile = true;
451	>	status = COMPILE_EPILOGUE_OK;
452	>	break;
453	>	#endif
454	>	// Invoke EmulOp handler
455	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
456	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
457	>	dg.gen_invoke_CPU_im(func, emul_op);
458	>	cg_context.done_compile = false;
459	>	status = COMPILE_CODE_OK;
460	>	break;
461		}
266	–	catch (...) {
267	–	printf("ERROR: execute() received an unknown exception!\n");
268	–	QuitEmulator();
462		}
463	+	return status;
464		}
465	+	#endif
466
467		// Handle MacOS interrupt
468	<	void sheepshaver_cpu::interrupt(uint32 entry, sheepshaver_cpu *cpu)
468	>	void sheepshaver_cpu::interrupt(uint32 entry)
469		{
470	<	#if MULTICORE_CPU
471	<	// Initialize stack pointer from previous CPU running
472	<	gpr(1) = cpu->gpr(1);
473	<	#else
470	>	#if EMUL_TIME_STATS
471	>	ppc_interrupt_count++;
472	>	const clock_t interrupt_start = clock();
473	>	#endif
474	>
475		// Save program counters and branch registers
476		uint32 saved_pc = pc();
477		uint32 saved_lr = lr();
478		uint32 saved_ctr= ctr();
479	<	#endif
479	>	uint32 saved_sp = gpr(1);
480
481	<	// Create stack frame
482	<	gpr(1) -= 64;
481	>	// Initialize stack pointer to SheepShaver alternate stack base
482	>	gpr(1) = SignalStackBase() - 64;
483
484		// Build trampoline to return from interrupt
485	<	uint32 trampoline[] = { POWERPC_EMUL_OP \| 1 };
485	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
486
487		// Prepare registers for nanokernel interrupt routine
488	<	kernel_data->v[0x004 >> 2] = gpr(1);
489	<	kernel_data->v[0x018 >> 2] = gpr(6);
488	>	kernel_data->v[0x004 >> 2] = htonl(gpr(1));
489	>	kernel_data->v[0x018 >> 2] = htonl(gpr(6));
490
491	<	gpr(6) = kernel_data->v[0x65c >> 2];
491	>	gpr(6) = ntohl(kernel_data->v[0x65c >> 2]);
492		assert(gpr(6) != 0);
493		WriteMacInt32(gpr(6) + 0x13c, gpr(7));
494		WriteMacInt32(gpr(6) + 0x144, gpr(8));
#	Line 303 \| Line 499 \| void sheepshaver_cpu::interrupt(uint32 e
499		WriteMacInt32(gpr(6) + 0x16c, gpr(13));
500
501		gpr(1) = KernelDataAddr;
502	<	gpr(7) = kernel_data->v[0x660 >> 2];
502	>	gpr(7) = ntohl(kernel_data->v[0x660 >> 2]);
503		gpr(8) = 0;
504	<	gpr(10) = (uint32)trampoline;
505	<	gpr(12) = (uint32)trampoline;
506	<	gpr(13) = cr().get();
504	>	gpr(10) = trampoline.addr();
505	>	gpr(12) = trampoline.addr();
506	>	gpr(13) = get_cr();
507
508		// rlwimi. r7,r7,8,0,0
509		uint32 result = op_ppc_rlwimi::apply(gpr(7), 8, 0x80000000, gpr(7));
#	Line 315 \| Line 511 \| void sheepshaver_cpu::interrupt(uint32 e
511		gpr(7) = result;
512
513		gpr(11) = 0xf072; // MSR (SRR1)
514	<	cr().set((gpr(11) & 0x0fff0000) \| (cr().get() & ~0x0fff0000));
514	>	cr().set((gpr(11) & 0x0fff0000) \| (get_cr() & ~0x0fff0000));
515
516		// Enter nanokernel
517		execute(entry);
518
323	–	// Cleanup stack
324	–	gpr(1) += 64;
325	–
326	–	#if !MULTICORE_CPU
519		// Restore program counters and branch registers
520		pc() = saved_pc;
521		lr() = saved_lr;
522		ctr()= saved_ctr;
523	+	gpr(1) = saved_sp;
524	+
525	+	#if EMUL_TIME_STATS
526	+	interrupt_time += (clock() - interrupt_start);
527		#endif
528		}
529
530		// Execute 68k routine
531		void sheepshaver_cpu::execute_68k(uint32 entry, M68kRegisters *r)
532		{
533	+	#if EMUL_TIME_STATS
534	+	exec68k_count++;
535	+	const clock_t exec68k_start = clock();
536	+	#endif
537	+
538		#if SAFE_EXEC_68K
539		if (ReadMacInt32(XLM_RUN_MODE) != MODE_EMUL_OP)
540		printf("FATAL: Execute68k() not called from EMUL_OP mode\n");
#	Line 343 \| Line 544 \| void sheepshaver_cpu::execute_68k(uint32
544		uint32 saved_pc = pc();
545		uint32 saved_lr = lr();
546		uint32 saved_ctr= ctr();
547	+	uint32 saved_cr = get_cr();
548
549		// Create MacOS stack frame
550	+	// FIXME: make sure MacOS doesn't expect PPC registers to live on top
551		uint32 sp = gpr(1);
552	<	gpr(1) -= 56 + 194 + 188;
552	>	gpr(1) -= 56;
553		WriteMacInt32(gpr(1), sp);
554
555		// Save PowerPC registers
556	<	memcpy(Mac2HostAddr(gpr(1)+56), &gpr(13), sizeof(uint32)*(32-13));
556	>	uint32 saved_GPRs[19];
557	>	memcpy(&saved_GPRs[0], &gpr(13), sizeof(uint32)*(32-13));
558		#if SAVE_FP_EXEC_68K
559	<	memcpy(Mac2HostAddr(gpr(1)+56+194), &fpr(14), sizeof(double)(32-14));
559	>	double saved_FPRs[18];
560	>	memcpy(&saved_FPRs[0], &fpr(14), sizeof(double)*(32-14));
561		#endif
562
563		// Setup registers for 68k emulator
#	Line 366 \| Line 571 \| void sheepshaver_cpu::execute_68k(uint32
571		gpr(25) = ReadMacInt32(XLM_68K_R25); // MSB of SR
572		gpr(26) = 0;
573		gpr(28) = 0; // VBR
574	<	gpr(29) = kernel_data->ed.v[0x74 >> 2]; // Pointer to opcode table
575	<	gpr(30) = kernel_data->ed.v[0x78 >> 2]; // Address of emulator
574	>	gpr(29) = ntohl(kernel_data->ed.v[0x74 >> 2]); // Pointer to opcode table
575	>	gpr(30) = ntohl(kernel_data->ed.v[0x78 >> 2]); // Address of emulator
576		gpr(31) = KernelDataAddr + 0x1000;
577
578		// Push return address (points to EXEC_RETURN opcode) on stack
#	Line 399 \| Line 604 \| void sheepshaver_cpu::execute_68k(uint32
604		r->a[i] = gpr(16 + i);
605
606		// Restore PowerPC registers
607	<	memcpy(&gpr(13), Mac2HostAddr(gpr(1)+56), sizeof(uint32)*(32-13));
607	>	memcpy(&gpr(13), &saved_GPRs[0], sizeof(uint32)*(32-13));
608		#if SAVE_FP_EXEC_68K
609	<	memcpy(&fpr(14), Mac2HostAddr(gpr(1)+56+194), sizeof(double)(32-14));
609	>	memcpy(&fpr(14), &saved_FPRs[0], sizeof(double)*(32-14));
610		#endif
611
612		// Cleanup stack
613	<	gpr(1) += 56 + 194 + 188;
613	>	gpr(1) += 56;
614
615		// Restore program counters and branch registers
616		pc() = saved_pc;
617		lr() = saved_lr;
618		ctr()= saved_ctr;
619	+	set_cr(saved_cr);
620	+
621	+	#if EMUL_TIME_STATS
622	+	exec68k_time += (clock() - exec68k_start);
623	+	#endif
624		}
625
626		// Call MacOS PPC code
627		uint32 sheepshaver_cpu::execute_macos_code(uint32 tvect, int nargs, uint32 const *args)
628		{
629	+	#if EMUL_TIME_STATS
630	+	macos_exec_count++;
631	+	const clock_t macos_exec_start = clock();
632	+	#endif
633	+
634		// Save program counters and branch registers
635		uint32 saved_pc = pc();
636		uint32 saved_lr = lr();
637		uint32 saved_ctr= ctr();
638
639		// Build trampoline with EXEC_RETURN
640	<	uint32 trampoline[] = { POWERPC_EMUL_OP \| 1 };
641	<	lr() = (uint32)trampoline;
640	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
641	>	lr() = trampoline.addr();
642
643		gpr(1) -= 64; // Create stack frame
644		uint32 proc = ReadMacInt32(tvect); // Get routine address
#	Line 454 \| Line 669 \| uint32 sheepshaver_cpu::execute_macos_co
669		lr() = saved_lr;
670		ctr()= saved_ctr;
671
672	+	#if EMUL_TIME_STATS
673	+	macos_exec_time += (clock() - macos_exec_start);
674	+	#endif
675	+
676		return retval;
677		}
678
#	Line 462 \| Line 681 \| inline void sheepshaver_cpu::execute_ppc
681		{
682		// Save branch registers
683		uint32 saved_lr = lr();
465	–	uint32 saved_ctr= ctr();
684
685	<	const uint32 trampoline[] = { POWERPC_EMUL_OP \| 1 };
685	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
686	>	WriteMacInt32(trampoline.addr(), POWERPC_EXEC_RETURN);
687	>	lr() = trampoline.addr();
688
469	–	lr() = (uint32)trampoline;
470	–	ctr()= entry;
689		execute(entry);
690
691		// Restore branch registers
692		lr() = saved_lr;
475	–	ctr()= saved_ctr;
693		}
694
695		// Resource Manager thunk
479	–	extern "C" void check_load_invoc(uint32 type, int16 id, uint16 **h);
480	–
696		inline void sheepshaver_cpu::get_resource(uint32 old_get_resource)
697		{
698		uint32 type = gpr(3);
#	Line 488 \| Line 703 \| inline void sheepshaver_cpu::get_resourc
703
704		// Call old routine
705		execute_ppc(old_get_resource);
491	–	uint16 handle = (uint16 )gpr(3);
706
707		// Call CheckLoad()
708	+	uint32 handle = gpr(3);
709		check_load_invoc(type, id, handle);
710	<	gpr(3) = (uint32)handle;
710	>	gpr(3) = handle;
711
712		// Cleanup stack
713		gpr(1) += 56;
#	Line 503 \| Line 718 \| inline void sheepshaver_cpu::get_resourc
718		* SheepShaver CPU engine interface
719		**/
720
721	<	static sheepshaver_cpu *main_cpu = NULL; // CPU emulator to handle usual control flow
722	<	static sheepshaver_cpu *interrupt_cpu = NULL; // CPU emulator to handle interrupts
508	<	static sheepshaver_cpu *current_cpu = NULL; // Current CPU emulator context
509	<
510	<	static inline void cpu_push(sheepshaver_cpu *new_cpu)
511	<	{
512	<	#if MULTICORE_CPU
513	<	current_cpu = new_cpu;
514	<	#endif
515	<	}
721	>	// PowerPC CPU emulator
722	>	static sheepshaver_cpu *ppc_cpu = NULL;
723
724	<	static inline void cpu_pop()
724	>	void FlushCodeCache(uintptr start, uintptr end)
725		{
726	<	#if MULTICORE_CPU
727	<	current_cpu = main_cpu;
521	<	#endif
726	>	D(bug("FlushCodeCache(%08x, %08x)\n", start, end));
727	>	ppc_cpu->invalidate_cache_range(start, end);
728		}
729
730		// Dump PPC registers
731		static void dump_registers(void)
732		{
733	<	current_cpu->dump_registers();
733	>	ppc_cpu->dump_registers();
734		}
735
736		// Dump log
737		static void dump_log(void)
738		{
739	<	current_cpu->dump_log();
739	>	ppc_cpu->dump_log();
740		}
741
742		/*
743		* Initialize CPU emulation
744		*/
745
746	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
746	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
747		{
748		#if ENABLE_VOSF
749		// Handle screen fault
#	Line 549 \| Line 755 \| static sigsegv_return_t sigsegv_handler(
755		const uintptr addr = (uintptr)fault_address;
756		#if HAVE_SIGSEGV_SKIP_INSTRUCTION
757		// Ignore writes to ROM
758	<	if ((addr - ROM_BASE) < ROM_SIZE)
758	>	if ((addr - (uintptr)ROMBaseHost) < ROM_SIZE)
759		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
760
761	<	// Ignore all other faults, if requested
762	<	if (PrefsFindBool("ignoresegv"))
763	<	return SIGSEGV_RETURN_FAILURE;
761	>	// Get program counter of target CPU
762	>	sheepshaver_cpu * const cpu = ppc_cpu;
763	>	const uint32 pc = cpu->pc();
764	>
765	>	// Fault in Mac ROM or RAM?
766	>	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));
767	>	if (mac_fault) {
768	>
769	>	// "VM settings" during MacOS 8 installation
770	>	if (pc == ROM_BASE + 0x488160 && cpu->gpr(20) == 0xf8000000)
771	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
772	>
773	>	// MacOS 8.5 installation
774	>	else if (pc == ROM_BASE + 0x488140 && cpu->gpr(16) == 0xf8000000)
775	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
776	>
777	>	// MacOS 8 serial drivers on startup
778	>	else if (pc == ROM_BASE + 0x48e080 && (cpu->gpr(8) == 0xf3012002 \|\| cpu->gpr(8) == 0xf3012000))
779	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
780	>
781	>	// MacOS 8.1 serial drivers on startup
782	>	else if (pc == ROM_BASE + 0x48c5e0 && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
783	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
784	>	else if (pc == ROM_BASE + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
785	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
786	>
787	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
788	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(16) == 0xf3012002 \|\| cpu->gpr(16) == 0xf3012000))
789	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
790	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
791	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
792	>
793	>	// Ignore writes to the zero page
794	>	else if ((uint32)(addr - SheepMem::ZeroPage()) < (uint32)SheepMem::PageSize())
795	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
796	>
797	>	// Ignore all other faults, if requested
798	>	if (PrefsFindBool("ignoresegv"))
799	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
800	>	}
801		#else
802		#error "FIXME: You don't have the capability to skip instruction within signal handlers"
803		#endif
804
805	<	printf("SIGSEGV\n");
806	<	printf(" pc %p\n", fault_instruction);
807	<	printf(" ea %p\n", fault_address);
565	<	printf(" cpu %s\n", current_cpu == main_cpu ? "main" : "interrupts");
805	>	fprintf(stderr, "SIGSEGV\n");
806	>	fprintf(stderr, " pc %p\n", fault_instruction);
807	>	fprintf(stderr, " ea %p\n", fault_address);
808		dump_registers();
809	<	current_cpu->dump_log();
809	>	ppc_cpu->dump_log();
810		enter_mon();
811		QuitEmulator();
812
#	Line 573 \| Line 815 \| static sigsegv_return_t sigsegv_handler(
815
816		void init_emul_ppc(void)
817		{
818	+	// Get pointer to KernelData in host address space
819	+	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
820	+
821		// Initialize main CPU emulator
822	<	main_cpu = new sheepshaver_cpu();
823	<	main_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
822	>	ppc_cpu = new sheepshaver_cpu();
823	>	ppc_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
824	>	ppc_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
825		WriteMacInt32(XLM_RUN_MODE, MODE_68K);
826
581	–	#if MULTICORE_CPU
582	–	// Initialize alternate CPU emulator to handle interrupts
583	–	interrupt_cpu = new sheepshaver_cpu();
584	–	#endif
585	–
586	–	// Install the handler for SIGSEGV
587	–	sigsegv_install_handler(sigsegv_handler);
588	–
827		#if ENABLE_MON
828		// Install "regs" command in cxmon
829		mon_add_command("regs", dump_registers, "regs Dump PowerPC registers\n");
830		mon_add_command("log", dump_log, "log Dump PowerPC emulation log\n");
831		#endif
832	+
833	+	#if EMUL_TIME_STATS
834	+	emul_start_time = clock();
835	+	#endif
836		}
837
838		/*
839	+	* Deinitialize emulation
840	+	*/
841	+
842	+	void exit_emul_ppc(void)
843	+	{
844	+	#if EMUL_TIME_STATS
845	+	clock_t emul_end_time = clock();
846	+
847	+	printf("### Statistics for SheepShaver emulation parts\n");
848	+	const clock_t emul_time = emul_end_time - emul_start_time;
849	+	printf("Total emulation time : %.1f sec\n", double(emul_time) / double(CLOCKS_PER_SEC));
850	+	printf("Total interrupt count: %d (%2.1f Hz)\n", interrupt_count,
851	+	(double(interrupt_count) * CLOCKS_PER_SEC) / double(emul_time));
852	+	printf("Total ppc interrupt count: %d (%2.1f %%)\n", ppc_interrupt_count,
853	+	(double(ppc_interrupt_count) * 100.0) / double(interrupt_count));
854	+
855	+	#define PRINT_STATS(LABEL, VAR_PREFIX) do { \
856	+	printf("Total " LABEL " count : %d\n", VAR_PREFIX##_count); \
857	+	printf("Total " LABEL " time : %.1f sec (%.1f%%)\n", \
858	+	double(VAR_PREFIX##_time) / double(CLOCKS_PER_SEC), \
859	+	100.0 * double(VAR_PREFIX##_time) / double(emul_time)); \
860	+	} while (0)
861	+
862	+	PRINT_STATS("Execute68k[Trap] execution", exec68k);
863	+	PRINT_STATS("NativeOp execution", native_exec);
864	+	PRINT_STATS("MacOS routine execution", macos_exec);
865	+
866	+	#undef PRINT_STATS
867	+	printf("\n");
868	+	#endif
869	+
870	+	delete ppc_cpu;
871	+	}
872	+
873	+	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
874	+	// Initialize EmulOp trampolines
875	+	void init_emul_op_trampolines(basic_dyngen & dg)
876	+	{
877	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
878	+	func_t func;
879	+
880	+	// EmulOp
881	+	emul_op_trampoline = dg.gen_start();
882	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
883	+	dg.gen_invoke_CPU_T0(func);
884	+	dg.gen_exec_return();
885	+	dg.gen_end();
886	+
887	+	// NativeOp
888	+	native_op_trampoline = dg.gen_start();
889	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
890	+	dg.gen_invoke_CPU_T0(func);
891	+	dg.gen_exec_return();
892	+	dg.gen_end();
893	+
894	+	D(bug("EmulOp trampoline: %p\n", emul_op_trampoline));
895	+	D(bug("NativeOp trampoline: %p\n", native_op_trampoline));
896	+	}
897	+	#endif
898	+
899	+	/*
900		* Emulation loop
901		*/
902
903		void emul_ppc(uint32 entry)
904		{
905	<	current_cpu = main_cpu;
906	<	current_cpu->start_log();
907	<	current_cpu->execute(entry);
905	>	#if 0
906	>	ppc_cpu->start_log();
907	>	#endif
908	>	// start emulation loop and enable code translation or caching
909	>	ppc_cpu->execute(entry);
910		}
911
912		/*
913		* Handle PowerPC interrupt
914		*/
915
611	–	// Atomic operations
612	–	extern int atomic_add(int *var, int v);
613	–	extern int atomic_and(int *var, int v);
614	–	extern int atomic_or(int *var, int v);
615	–
916		void TriggerInterrupt(void)
917		{
918	+	idle_resume();
919		#if 0
920		WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
921		#else
922	<	SPCFLAGS_SET( SPCFLAG_INT );
922	>	// Trigger interrupt to main cpu only
923	>	if (ppc_cpu)
924	>	ppc_cpu->trigger_interrupt();
925		#endif
926		}
927
928	<	static void HandleInterrupt(void)
928	>	void HandleInterrupt(powerpc_registers *r)
929		{
930	+	#ifdef USE_SDL_VIDEO
931	+	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
932	+	SDL_PumpEvents();
933	+	#endif
934	+
935		// Do nothing if interrupts are disabled
936		if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
937		return;
938
939	<	// Do nothing if there is no interrupt pending
940	<	if (InterruptFlags == 0)
941	<	return;
942	<
635	<	// Disable MacOS stack sniffer
636	<	WriteMacInt32(0x110, 0);
939	>	// Update interrupt count
940	>	#if EMUL_TIME_STATS
941	>	interrupt_count++;
942	>	#endif
943
944		// Interrupt action depends on current run mode
945		switch (ReadMacInt32(XLM_RUN_MODE)) {
946		case MODE_68K:
947		// 68k emulator active, trigger 68k interrupt level 1
642	–	assert(current_cpu == main_cpu);
948		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
949	<	main_cpu->set_cr(main_cpu->get_cr() \| tswap32(kernel_data->v[0x674 >> 2]));
949	>	r->cr.set(r->cr.get() \| tswap32(kernel_data->v[0x674 >> 2]));
950		break;
951
952		#if INTERRUPTS_IN_NATIVE_MODE
953		case MODE_NATIVE:
954		// 68k emulator inactive, in nanokernel?
955	<	assert(current_cpu == main_cpu);
956	<	if (main_cpu->gpr(1) != KernelDataAddr) {
955	>	if (r->gpr[1] != KernelDataAddr) {
956	>
957		// Prepare for 68k interrupt level 1
958		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
959		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 657 \| Line 962 \| static void HandleInterrupt(void)
962
963		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
964		DisableInterrupt();
660	–	cpu_push(interrupt_cpu);
965		if (ROMType == ROMTYPE_NEWWORLD)
966	<	current_cpu->interrupt(ROM_BASE + 0x312b1c, main_cpu);
966	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
967		else
968	<	current_cpu->interrupt(ROM_BASE + 0x312a3c, main_cpu);
665	<	cpu_pop();
968	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
969		}
970		break;
971		#endif
#	Line 671 \| Line 974 \| static void HandleInterrupt(void)
974		case MODE_EMUL_OP:
975		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
976		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
977	+	#if EMUL_TIME_STATS
978	+	const clock_t interrupt_start = clock();
979	+	#endif
980		#if 1
981		// Execute full 68k interrupt routine
982		M68kRegisters r;
983		uint32 old_r25 = ReadMacInt32(XLM_68K_R25); // Save interrupt level
984		WriteMacInt32(XLM_68K_R25, 0x21); // Execute with interrupt level 1
985	<	static const uint8 proc[] = {
985	>	static const uint8 proc_template[] = {
986		0x3f, 0x3c, 0x00, 0x00, // move.w #$0000,-(sp) (fake format word)
987		0x48, 0x7a, 0x00, 0x0a, // pea @1(pc) (return address)
988		0x40, 0xe7, // move sr,-(sp) (saved SR)
#	Line 684 \| Line 990 \| static void HandleInterrupt(void)
990		0x4e, 0xd0, // jmp (a0)
991		M68K_RTS >> 8, M68K_RTS & 0xff // @1
992		};
993	<	Execute68k((uint32)proc, &r);
993	>	BUILD_SHEEPSHAVER_PROCEDURE(proc);
994	>	Execute68k(proc, &r);
995		WriteMacInt32(XLM_68K_R25, old_r25); // Restore interrupt level
996		#else
997		// Only update cursor
#	Line 692 \| Line 999 \| static void HandleInterrupt(void)
999		if (InterruptFlags & INTFLAG_VIA) {
1000		ClearInterruptFlag(INTFLAG_VIA);
1001		ADBInterrupt();
1002	<	ExecutePPC(VideoVBL);
1002	>	ExecuteNative(NATIVE_VIDEO_VBL);
1003		}
1004		}
1005		#endif
1006	+	#if EMUL_TIME_STATS
1007	+	interrupt_time += (clock() - interrupt_start);
1008	+	#endif
1009		}
1010		break;
1011		#endif
1012		}
1013		}
1014
705	–	/*
706	–	* Execute NATIVE_OP opcode (called by PowerPC emulator)
707	–	*/
708	–
709	–	#define POWERPC_NATIVE_OP_INIT(LR, OP) \
710	–	tswap32(POWERPC_EMUL_OP \| ((LR) << 11) \| (((uint32)OP) << 6) \| 2)
711	–
712	–	// FIXME: Make sure 32-bit relocations are used
713	–	const uint32 NativeOpTable[NATIVE_OP_MAX] = {
714	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_PATCH_NAME_REGISTRY),
715	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_INSTALL_ACCEL),
716	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_VBL),
717	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_VIDEO_DO_DRIVER_IO),
718	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_IRQ),
719	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_INIT),
720	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_TERM),
721	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_OPEN),
722	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_CLOSE),
723	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_WPUT),
724	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_ETHER_RSRV),
725	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_NOTHING),
726	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_OPEN),
727	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_IN),
728	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_PRIME_OUT),
729	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CONTROL),
730	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_STATUS),
731	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_SERIAL_CLOSE),
732	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_RESOURCE),
733	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_RESOURCE),
734	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_IND_RESOURCE),
735	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_GET_1_IND_RESOURCE),
736	–	POWERPC_NATIVE_OP_INIT(1, NATIVE_R_GET_RESOURCE),
737	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_DISABLE_INTERRUPT),
738	–	POWERPC_NATIVE_OP_INIT(0, NATIVE_ENABLE_INTERRUPT),
739	–	};
740	–
1015		static void get_resource(void);
1016		static void get_1_resource(void);
1017		static void get_ind_resource(void);
1018		static void get_1_ind_resource(void);
1019		static void r_get_resource(void);
1020
1021	<	#define GPR(REG) current_cpu->gpr(REG)
1022	<
749	<	static void NativeOp(int selector)
1021	>	// Execute NATIVE_OP routine
1022	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
1023		{
1024	+	#if EMUL_TIME_STATS
1025	+	native_exec_count++;
1026	+	const clock_t native_exec_start = clock();
1027	+	#endif
1028	+
1029		switch (selector) {
1030		case NATIVE_PATCH_NAME_REGISTRY:
1031		DoPatchNameRegistry();
#	Line 759 \| Line 1037 \| static void NativeOp(int selector)
1037		VideoVBL();
1038		break;
1039		case NATIVE_VIDEO_DO_DRIVER_IO:
1040	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void )GPR(3), (void )GPR(4),
763	<	(void *)GPR(5), GPR(6), GPR(7));
1040	>	gpr(3) = (int32)(int16)VideoDoDriverIO(gpr(3), gpr(4), gpr(5), gpr(6), gpr(7));
1041		break;
1042	<	case NATIVE_GET_RESOURCE:
1043	<	get_resource();
1042	>	case NATIVE_ETHER_IRQ:
1043	>	EtherIRQ();
1044		break;
1045	<	case NATIVE_GET_1_RESOURCE:
1046	<	get_1_resource();
1045	>	case NATIVE_ETHER_INIT:
1046	>	gpr(3) = InitStreamModule((void *)gpr(3));
1047		break;
1048	<	case NATIVE_GET_IND_RESOURCE:
1049	<	get_ind_resource();
1048	>	case NATIVE_ETHER_TERM:
1049	>	TerminateStreamModule();
1050		break;
1051	<	case NATIVE_GET_1_IND_RESOURCE:
1052	<	get_1_ind_resource();
1051	>	case NATIVE_ETHER_OPEN:
1052	>	gpr(3) = ether_open((queue_t )gpr(3), (void )gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1053		break;
1054	<	case NATIVE_R_GET_RESOURCE:
1055	<	r_get_resource();
1054	>	case NATIVE_ETHER_CLOSE:
1055	>	gpr(3) = ether_close((queue_t )gpr(3), gpr(4), (void )gpr(5));
1056	>	break;
1057	>	case NATIVE_ETHER_WPUT:
1058	>	gpr(3) = ether_wput((queue_t )gpr(3), (mblk_t )gpr(4));
1059	>	break;
1060	>	case NATIVE_ETHER_RSRV:
1061	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1062	>	break;
1063	>	case NATIVE_SYNC_HOOK:
1064	>	gpr(3) = NQD_sync_hook(gpr(3));
1065	>	break;
1066	>	case NATIVE_BITBLT_HOOK:
1067	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1068	>	break;
1069	>	case NATIVE_BITBLT:
1070	>	NQD_bitblt(gpr(3));
1071	>	break;
1072	>	case NATIVE_FILLRECT_HOOK:
1073	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1074	>	break;
1075	>	case NATIVE_INVRECT:
1076	>	NQD_invrect(gpr(3));
1077	>	break;
1078	>	case NATIVE_FILLRECT:
1079	>	NQD_fillrect(gpr(3));
1080		break;
1081		case NATIVE_SERIAL_NOTHING:
1082		case NATIVE_SERIAL_OPEN:
#	Line 794 \| Line 1095 \| static void NativeOp(int selector)
1095		SerialStatus,
1096		SerialClose
1097		};
1098	<	GPR(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](GPR(3), GPR(4));
1098	>	gpr(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](gpr(3), gpr(4));
1099	>	break;
1100	>	}
1101	>	case NATIVE_GET_RESOURCE:
1102	>	case NATIVE_GET_1_RESOURCE:
1103	>	case NATIVE_GET_IND_RESOURCE:
1104	>	case NATIVE_GET_1_IND_RESOURCE:
1105	>	case NATIVE_R_GET_RESOURCE: {
1106	>	typedef void (*GetResourceCallback)(void);
1107	>	static const GetResourceCallback get_resource_callbacks[] = {
1108	>	::get_resource,
1109	>	::get_1_resource,
1110	>	::get_ind_resource,
1111	>	::get_1_ind_resource,
1112	>	::r_get_resource
1113	>	};
1114	>	get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1115		break;
1116		}
1117	<	case NATIVE_DISABLE_INTERRUPT:
1118	<	DisableInterrupt();
1117	>	case NATIVE_MAKE_EXECUTABLE:
1118	>	MakeExecutable(0, gpr(4), gpr(5));
1119		break;
1120	<	case NATIVE_ENABLE_INTERRUPT:
1121	<	EnableInterrupt();
1120	>	case NATIVE_CHECK_LOAD_INVOC:
1121	>	check_load_invoc(gpr(3), gpr(4), gpr(5));
1122		break;
1123		default:
1124		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
1125		QuitEmulator();
1126		break;
1127		}
811	–	}
1128
1129	<	/*
1130	<	* Execute native subroutine (LR must contain return address)
1131	<	*/
816	<
817	<	void ExecuteNative(int selector)
818	<	{
819	<	uint32 tvect[2];
820	<	tvect[0] = tswap32(POWERPC_NATIVE_OP_FUNC(selector));
821	<	tvect[1] = 0; // Fake TVECT
822	<	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
823	<	M68kRegisters r;
824	<	Execute68k((uint32)&desc, &r);
1129	>	#if EMUL_TIME_STATS
1130	>	native_exec_time += (clock() - native_exec_start);
1131	>	#endif
1132		}
1133
1134		/*
#	Line 832 \| Line 1139 \| void ExecuteNative(int selector)
1139
1140		void Execute68k(uint32 pc, M68kRegisters *r)
1141		{
1142	<	current_cpu->execute_68k(pc, r);
1142	>	ppc_cpu->execute_68k(pc, r);
1143		}
1144
1145		/*
#	Line 842 \| Line 1149 \| void Execute68k(uint32 pc, M68kRegisters
1149
1150		void Execute68kTrap(uint16 trap, M68kRegisters *r)
1151		{
1152	<	uint16 proc[2] = {trap, M68K_RTS};
1153	<	Execute68k((uint32)proc, r);
1152	>	SheepVar proc_var(4);
1153	>	uint32 proc = proc_var.addr();
1154	>	WriteMacInt16(proc, trap);
1155	>	WriteMacInt16(proc + 2, M68K_RTS);
1156	>	Execute68k(proc, r);
1157		}
1158
1159		/*
#	Line 852 \| Line 1162 \| void Execute68kTrap(uint16 trap, M68kReg
1162
1163		uint32 call_macos(uint32 tvect)
1164		{
1165	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1165	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1166		}
1167
1168		uint32 call_macos1(uint32 tvect, uint32 arg1)
1169		{
1170		const uint32 args[] = { arg1 };
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_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1175		{
1176		const uint32 args[] = { arg1, arg2 };
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		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1181		{
1182		const uint32 args[] = { arg1, arg2, arg3 };
1183	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1183	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1184		}
1185
1186		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1187		{
1188		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1189	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1189	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1190		}
1191
1192		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1193		{
1194		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1195	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1195	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1196		}
1197
1198		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1199		{
1200		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1201	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1201	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1202		}
1203
1204		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1205		{
1206		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1207	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
898	<	}
899	<
900	<	/*
901	<	* Atomic operations
902	<	*/
903	<
904	<	int atomic_add(int *var, int v)
905	<	{
906	<	int ret = *var;
907	<	*var += v;
908	<	return ret;
909	<	}
910	<
911	<	int atomic_and(int *var, int v)
912	<	{
913	<	int ret = *var;
914	<	*var &= v;
915	<	return ret;
916	<	}
917	<
918	<	int atomic_or(int *var, int v)
919	<	{
920	<	int ret = *var;
921	<	*var \|= v;
922	<	return ret;
1207	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1208		}
1209
1210		/*
#	Line 928 \| Line 1213 \| *int atomic_or(int var, int v)**
1213
1214		void get_resource(void)
1215		{
1216	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1216	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1217		}
1218
1219		void get_1_resource(void)
1220		{
1221	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1221	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1222		}
1223
1224		void get_ind_resource(void)
1225		{
1226	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1226	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1227		}
1228
1229		void get_1_ind_resource(void)
1230		{
1231	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1231	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1232		}
1233
1234		void r_get_resource(void)
1235		{
1236	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1236	>	ppc_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1237		}

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents): Revision 1.3 by gbeauche, 2003-09-29T07:05:15Z vs. Revision 1.64 by gbeauche, 2005-06-30T10:17:58Z

Diff Legend

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.3 by gbeauche, 2003-09-29T07:05:15Z vs.
Revision 1.64 by gbeauche, 2005-06-30T10:17:58Z