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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.1 by gbeauche, 2003-09-07T14:25:01Z vs.
Revision 1.71 by gbeauche, 2006-07-09T12:15:48Z

#	Line 1 | Line 1
1		/*
2		*  sheepshaver_glue.cpp - Glue Kheperix CPU to SheepShaver CPU engine interface
3		*
4	<	*  SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
4	>	*  SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 21 | Line 21
21		#include "sysdeps.h"
22		#include "cpu_emulation.h"
23		#include "main.h"
24	+	#include "prefs.h"
25		#include "xlowmem.h"
26		#include "emul_op.h"
27		#include "rom_patches.h"
#	Line 29 | 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"
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 54 | Line 84 | static void enter_mon(void)
84		#endif
85		}
86
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	+	extern "C" void named_check_load_invoc(uint32 type, uint32 name, uint32 h);
93	+
94	+	// PowerPC EmulOp to exit from emulation looop
95	+	const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP | 1;
96	+
97		// Enable Execute68k() safety checks?
98		#define SAFE_EXEC_68K 1
99
#	Line 66 | Line 106 | static void enter_mon(void)
106		// Interrupts in native mode?
107		#define INTERRUPTS_IN_NATIVE_MODE 1
108
109	<	// 68k Emulator Data
110	<	struct EmulatorData {
71	<	uint32  v[0x400];
72	<	};
109	>	// Pointer to Kernel Data
110	>	static KernelData * kernel_data;
111
112	<	// Kernel Data
113	<	struct KernelData {
76	<	uint32  v[0x400];
77	<	EmulatorData ed;
78	<	};
112	>	// SIGSEGV handler
113	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
114
115	<	// Pointer to Kernel Data
116	<	static KernelData * const kernel_data = (KernelData *)0x68ffe000;
115	>	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
116	>	// Special trampolines for EmulOp and NativeOp
117	>	static uint8 *emul_op_trampoline;
118	>	static uint8 *native_op_trampoline;
119	>	#endif
120	>
121	>	// JIT Compiler enabled?
122	>	static inline bool enable_jit_p()
123	>	{
124	>	return PrefsFindBool("jit");
125	>	}
126
127
128		/**
129		*              PowerPC emulator glue with special 'sheep' opcodes
130		**/
131
132	<	struct sheepshaver_exec_return { };
132	>	enum {
133	>	PPC_I(SHEEP) = PPC_I(MAX),
134	>	PPC_I(SHEEP_MAX)
135	>	};
136
137		class sheepshaver_cpu
138		: public powerpc_cpu
#	Line 95 | Line 142 | class sheepshaver_cpu
142
143		public:
144
145	<	sheepshaver_cpu()
146	<	: powerpc_cpu()
100	<	{ init_decoder(); }
101	<
102	<	// Stack pointer accessors
103	<	uint32 get_sp() const           { return gpr(1); }
104	<	void set_sp(uint32 v)           { gpr(1) = v; }
145	>	// Constructor
146	>	sheepshaver_cpu();
147
148	<	// Condition Register accessors
148	>	// CR & XER accessors
149		uint32 get_cr() const           { return cr().get(); }
150		void set_cr(uint32 v)           { cr().set(v); }
151	+	uint32 get_xer() const          { return xer().get(); }
152	+	void set_xer(uint32 v)          { xer().set(v); }
153
154	<	// Execution loop
155	<	void execute(uint32 pc);
154	>	// Execute NATIVE_OP routine
155	>	void execute_native_op(uint32 native_op);
156	>
157	>	// Execute EMUL_OP routine
158	>	void execute_emul_op(uint32 emul_op);
159
160		// Execute 68k routine
161		void execute_68k(uint32 entry, M68kRegisters *r);
162
163	+	// Execute ppc routine
164	+	void execute_ppc(uint32 entry);
165	+
166		// Execute MacOS/PPC code
167		uint32 execute_macos_code(uint32 tvect, int nargs, uint32 const *args);
168
169	+	#if PPC_ENABLE_JIT
170	+	// Compile one instruction
171	+	virtual int compile1(codegen_context_t & cg_context);
172	+	#endif
173		// Resource manager thunk
174		void get_resource(uint32 old_get_resource);
175
176		// Handle MacOS interrupt
177	<	void interrupt(uint32 entry, uint32 sp);
177	>	void interrupt(uint32 entry);
178
179	<	// Lazy memory allocator (one item at a time)
180	<	void *operator new(size_t size)
127	<	{ return allocator_helper< sheepshaver_cpu, lazy_allocator >::allocate(); }
128	<	void operator delete(void *p)
129	<	{ allocator_helper< sheepshaver_cpu, lazy_allocator >::deallocate(p); }
130	<	// FIXME: really make surre array allocation fail at link time?
131	<	void *operator new[](size_t);
132	<	void operator delete[](void *p);
179	>	// Make sure the SIGSEGV handler can access CPU registers
180	>	friend sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
181		};
182
183	<	lazy_allocator< sheepshaver_cpu > allocator_helper< sheepshaver_cpu, lazy_allocator >::allocator;
183	>	sheepshaver_cpu::sheepshaver_cpu()
184	>	: powerpc_cpu(enable_jit_p())
185	>	{
186	>	init_decoder();
187	>	}
188
189		void sheepshaver_cpu::init_decoder()
190		{
139	–	#ifndef PPC_NO_STATIC_II_INDEX_TABLE
140	–	static bool initialized = false;
141	–	if (initialized)
142	–	return;
143	–	initialized = true;
144	–	#endif
145	–
191		static const instr_info_t sheep_ii_table[] = {
192		{ "sheep",
193	<	(execute_fn)&sheepshaver_cpu::execute_sheep,
193	>	(execute_pmf)&sheepshaver_cpu::execute_sheep,
194		NULL,
195	<	D_form, 6, 0, CFLOW_TRAP
195	>	PPC_I(SHEEP),
196	>	D_form, 6, 0, CFLOW_JUMP | CFLOW_TRAP
197		}
198		};
199
#	Line 160 | Line 206 | void sheepshaver_cpu::init_decoder()
206		}
207		}
208
209	<	// Forward declaration for native opcode handler
210	<	static void NativeOp(int selector);
209	>	/*              NativeOp instruction format:
210	>	+------------+-------------------------+--+-----------+------------+
211	>	|      6     |                         |FN|    OP     |      2     |
212	>	+------------+-------------------------+--+-----------+------------+
213	>	0         5 |6                      18 19 20      25 26        31
214	>	*/
215	>
216	>	typedef bit_field< 19, 19 > FN_field;
217	>	typedef bit_field< 20, 25 > NATIVE_OP_field;
218	>	typedef bit_field< 26, 31 > EMUL_OP_field;
219	>
220	>	// Execute EMUL_OP routine
221	>	void sheepshaver_cpu::execute_emul_op(uint32 emul_op)
222	>	{
223	>	M68kRegisters r68;
224	>	WriteMacInt32(XLM_68K_R25, gpr(25));
225	>	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
226	>	for (int i = 0; i < 8; i++)
227	>	r68.d[i] = gpr(8 + i);
228	>	for (int i = 0; i < 7; i++)
229	>	r68.a[i] = gpr(16 + i);
230	>	r68.a[7] = gpr(1);
231	>	uint32 saved_cr = get_cr() & 0xff9fffff; // mask_operand::compute(11, 8)
232	>	uint32 saved_xer = get_xer();
233	>	EmulOp(&r68, gpr(24), emul_op);
234	>	set_cr(saved_cr);
235	>	set_xer(saved_xer);
236	>	for (int i = 0; i < 8; i++)
237	>	gpr(8 + i) = r68.d[i];
238	>	for (int i = 0; i < 7; i++)
239	>	gpr(16 + i) = r68.a[i];
240	>	gpr(1) = r68.a[7];
241	>	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
242	>	}
243
244		// Execute SheepShaver instruction
245		void sheepshaver_cpu::execute_sheep(uint32 opcode)
#	Line 173 | Line 251 | void sheepshaver_cpu::execute_sheep(uint
251		case 0:         // EMUL_RETURN
252		QuitEmulator();
253		break;
254	<
254	>
255		case 1:         // EXEC_RETURN
256	<	throw sheepshaver_exec_return();
256	>	spcflags().set(SPCFLAG_CPU_EXEC_RETURN);
257		break;
258
259		case 2:         // EXEC_NATIVE
260	<	NativeOp((opcode >> 6) & 0x1f);
261	<	pc() = lr();
260	>	execute_native_op(NATIVE_OP_field::extract(opcode));
261	>	if (FN_field::test(opcode))
262	>	pc() = lr();
263	>	else
264	>	pc() += 4;
265		break;
266
267	<	default: {      // EMUL_OP
268	<	M68kRegisters r68;
188	<	WriteMacInt32(XLM_68K_R25, gpr(25));
189	<	WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
190	<	for (int i = 0; i < 8; i++)
191	<	r68.d[i] = gpr(8 + i);
192	<	for (int i = 0; i < 7; i++)
193	<	r68.a[i] = gpr(16 + i);
194	<	r68.a[7] = gpr(1);
195	<	EmulOp(&r68, gpr(24), (opcode & 0x3f) - 3);
196	<	for (int i = 0; i < 8; i++)
197	<	gpr(8 + i) = r68.d[i];
198	<	for (int i = 0; i < 7; i++)
199	<	gpr(16 + i) = r68.a[i];
200	<	gpr(1) = r68.a[7];
201	<	WriteMacInt32(XLM_RUN_MODE, MODE_68K);
267	>	default:        // EMUL_OP
268	>	execute_emul_op(EMUL_OP_field::extract(opcode) - 3);
269		pc() += 4;
270		break;
271		}
205	–	}
272		}
273
274	<	// Execution loop
275	<	void sheepshaver_cpu::execute(uint32 entry)
276	<	{
277	<	try {
278	<	pc() = entry;
279	<	powerpc_cpu::execute();
274	>	// Compile one instruction
275	>	#if PPC_ENABLE_JIT
276	>	int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
277	>	{
278	>	const instr_info_t *ii = cg_context.instr_info;
279	>	if (ii->mnemo != PPC_I(SHEEP))
280	>	return COMPILE_FAILURE;
281	>
282	>	int status = COMPILE_FAILURE;
283	>	powerpc_dyngen & dg = cg_context.codegen;
284	>	uint32 opcode = cg_context.opcode;
285	>
286	>	switch (opcode & 0x3f) {
287	>	case 0:         // EMUL_RETURN
288	>	dg.gen_invoke(QuitEmulator);
289	>	status = COMPILE_CODE_OK;
290	>	break;
291	>
292	>	case 1:         // EXEC_RETURN
293	>	dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN);
294	>	// Don't check for pending interrupts, we do know we have to
295	>	// get out of this block ASAP
296	>	dg.gen_exec_return();
297	>	status = COMPILE_EPILOGUE_OK;
298	>	break;
299	>
300	>	case 2: {       // EXEC_NATIVE
301	>	uint32 selector = NATIVE_OP_field::extract(opcode);
302	>	switch (selector) {
303	>	#if !PPC_REENTRANT_JIT
304	>	// Filter out functions that may invoke Execute68k() or
305	>	// CallMacOS(), this would break reentrancy as they could
306	>	// invalidate the translation cache and even overwrite
307	>	// continuation code when we are done with them.
308	>	case NATIVE_PATCH_NAME_REGISTRY:
309	>	dg.gen_invoke(DoPatchNameRegistry);
310	>	status = COMPILE_CODE_OK;
311	>	break;
312	>	case NATIVE_VIDEO_INSTALL_ACCEL:
313	>	dg.gen_invoke(VideoInstallAccel);
314	>	status = COMPILE_CODE_OK;
315	>	break;
316	>	case NATIVE_VIDEO_VBL:
317	>	dg.gen_invoke(VideoVBL);
318	>	status = COMPILE_CODE_OK;
319	>	break;
320	>	case NATIVE_GET_RESOURCE:
321	>	case NATIVE_GET_1_RESOURCE:
322	>	case NATIVE_GET_IND_RESOURCE:
323	>	case NATIVE_GET_1_IND_RESOURCE:
324	>	case NATIVE_R_GET_RESOURCE: {
325	>	static const uint32 get_resource_ptr[] = {
326	>	XLM_GET_RESOURCE,
327	>	XLM_GET_1_RESOURCE,
328	>	XLM_GET_IND_RESOURCE,
329	>	XLM_GET_1_IND_RESOURCE,
330	>	XLM_R_GET_RESOURCE
331	>	};
332	>	uint32 old_get_resource = ReadMacInt32(get_resource_ptr[selector - NATIVE_GET_RESOURCE]);
333	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
334	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::get_resource).ptr();
335	>	dg.gen_invoke_CPU_im(func, old_get_resource);
336	>	status = COMPILE_CODE_OK;
337	>	break;
338	>	}
339	>	#endif
340	>	case NATIVE_CHECK_LOAD_INVOC:
341	>	dg.gen_load_T0_GPR(3);
342	>	dg.gen_load_T1_GPR(4);
343	>	dg.gen_se_16_32_T1();
344	>	dg.gen_load_T2_GPR(5);
345	>	dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc);
346	>	status = COMPILE_CODE_OK;
347	>	break;
348	>	case NATIVE_NAMED_CHECK_LOAD_INVOC:
349	>	dg.gen_load_T0_GPR(3);
350	>	dg.gen_load_T1_GPR(4);
351	>	dg.gen_load_T2_GPR(5);
352	>	dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))named_check_load_invoc);
353	>	status = COMPILE_CODE_OK;
354	>	break;
355	>	case NATIVE_NQD_SYNC_HOOK:
356	>	dg.gen_load_T0_GPR(3);
357	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_sync_hook);
358	>	dg.gen_store_T0_GPR(3);
359	>	status = COMPILE_CODE_OK;
360	>	break;
361	>	case NATIVE_NQD_BITBLT_HOOK:
362	>	dg.gen_load_T0_GPR(3);
363	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_bitblt_hook);
364	>	dg.gen_store_T0_GPR(3);
365	>	status = COMPILE_CODE_OK;
366	>	break;
367	>	case NATIVE_NQD_FILLRECT_HOOK:
368	>	dg.gen_load_T0_GPR(3);
369	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_fillrect_hook);
370	>	dg.gen_store_T0_GPR(3);
371	>	status = COMPILE_CODE_OK;
372	>	break;
373	>	case NATIVE_NQD_UNKNOWN_HOOK:
374	>	dg.gen_load_T0_GPR(3);
375	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_unknown_hook);
376	>	dg.gen_store_T0_GPR(3);
377	>	status = COMPILE_CODE_OK;
378	>	break;
379	>	case NATIVE_NQD_BITBLT:
380	>	dg.gen_load_T0_GPR(3);
381	>	dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
382	>	status = COMPILE_CODE_OK;
383	>	break;
384	>	case NATIVE_NQD_INVRECT:
385	>	dg.gen_load_T0_GPR(3);
386	>	dg.gen_invoke_T0((void (*)(uint32))NQD_invrect);
387	>	status = COMPILE_CODE_OK;
388	>	break;
389	>	case NATIVE_NQD_FILLRECT:
390	>	dg.gen_load_T0_GPR(3);
391	>	dg.gen_invoke_T0((void (*)(uint32))NQD_fillrect);
392	>	status = COMPILE_CODE_OK;
393	>	break;
394	>	}
395	>	// Could we fully translate this NativeOp?
396	>	if (status == COMPILE_CODE_OK) {
397	>	if (!FN_field::test(opcode))
398	>	cg_context.done_compile = false;
399	>	else {
400	>	dg.gen_load_T0_LR_aligned();
401	>	dg.gen_set_PC_T0();
402	>	cg_context.done_compile = true;
403	>	}
404	>	break;
405	>	}
406	>	#if PPC_REENTRANT_JIT
407	>	// Try to execute NativeOp trampoline
408	>	if (!FN_field::test(opcode))
409	>	dg.gen_set_PC_im(cg_context.pc + 4);
410	>	else {
411	>	dg.gen_load_T0_LR_aligned();
412	>	dg.gen_set_PC_T0();
413	>	}
414	>	dg.gen_mov_32_T0_im(selector);
415	>	dg.gen_jmp(native_op_trampoline);
416	>	cg_context.done_compile = true;
417	>	status = COMPILE_EPILOGUE_OK;
418	>	break;
419	>	#endif
420	>	// Invoke NativeOp handler
421	>	if (!FN_field::test(opcode)) {
422	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
423	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
424	>	dg.gen_invoke_CPU_im(func, selector);
425	>	cg_context.done_compile = false;
426	>	status = COMPILE_CODE_OK;
427	>	}
428	>	// Otherwise, let it generate a call to execute_sheep() which
429	>	// will cause necessary updates to the program counter
430	>	break;
431		}
432	<	catch (sheepshaver_exec_return const &) {
433	<	// Nothing, simply return
432	>
433	>	default: {      // EMUL_OP
434	>	uint32 emul_op = EMUL_OP_field::extract(opcode) - 3;
435	>	#if PPC_REENTRANT_JIT
436	>	// Try to execute EmulOp trampoline
437	>	dg.gen_set_PC_im(cg_context.pc + 4);
438	>	dg.gen_mov_32_T0_im(emul_op);
439	>	dg.gen_jmp(emul_op_trampoline);
440	>	cg_context.done_compile = true;
441	>	status = COMPILE_EPILOGUE_OK;
442	>	break;
443	>	#endif
444	>	// Invoke EmulOp handler
445	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
446	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
447	>	dg.gen_invoke_CPU_im(func, emul_op);
448	>	cg_context.done_compile = false;
449	>	status = COMPILE_CODE_OK;
450	>	break;
451		}
218	–	catch (...) {
219	–	printf("ERROR: execute() received an unknown exception!\n");
220	–	QuitEmulator();
452		}
453	+	return status;
454		}
455	+	#endif
456
457		// Handle MacOS interrupt
458	<	void sheepshaver_cpu::interrupt(uint32 entry, uint32 sp)
458	>	void sheepshaver_cpu::interrupt(uint32 entry)
459		{
460	<	// Create stack frame
461	<	gpr(1) = sp - 64;
460	>	#if EMUL_TIME_STATS
461	>	ppc_interrupt_count++;
462	>	const clock_t interrupt_start = clock();
463	>	#endif
464	>
465	>	// Save program counters and branch registers
466	>	uint32 saved_pc = pc();
467	>	uint32 saved_lr = lr();
468	>	uint32 saved_ctr= ctr();
469	>	uint32 saved_sp = gpr(1);
470	>
471	>	// Initialize stack pointer to SheepShaver alternate stack base
472	>	gpr(1) = SignalStackBase() - 64;
473
474		// Build trampoline to return from interrupt
475	<	uint32 trampoline[] = { POWERPC_EMUL_OP | 1 };
475	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
476
477		// Prepare registers for nanokernel interrupt routine
478	<	kernel_data->v[0x004 >> 2] = gpr(1);
479	<	kernel_data->v[0x018 >> 2] = gpr(6);
478	>	kernel_data->v[0x004 >> 2] = htonl(gpr(1));
479	>	kernel_data->v[0x018 >> 2] = htonl(gpr(6));
480
481	<	gpr(6) = kernel_data->v[0x65c >> 2];
481	>	gpr(6) = ntohl(kernel_data->v[0x65c >> 2]);
482	>	assert(gpr(6) != 0);
483		WriteMacInt32(gpr(6) + 0x13c, gpr(7));
484		WriteMacInt32(gpr(6) + 0x144, gpr(8));
485		WriteMacInt32(gpr(6) + 0x14c, gpr(9));
#	Line 244 | Line 489 | void sheepshaver_cpu::interrupt(uint32 e
489		WriteMacInt32(gpr(6) + 0x16c, gpr(13));
490
491		gpr(1)  = KernelDataAddr;
492	<	gpr(7)  = kernel_data->v[0x660 >> 2];
492	>	gpr(7)  = ntohl(kernel_data->v[0x660 >> 2]);
493		gpr(8)  = 0;
494	<	gpr(10) = (uint32)trampoline;
495	<	gpr(12) = (uint32)trampoline;
496	<	gpr(13) = cr().get();
494	>	gpr(10) = trampoline.addr();
495	>	gpr(12) = trampoline.addr();
496	>	gpr(13) = get_cr();
497
498		// rlwimi. r7,r7,8,0,0
499		uint32 result = op_ppc_rlwimi::apply(gpr(7), 8, 0x80000000, gpr(7));
#	Line 256 | Line 501 | void sheepshaver_cpu::interrupt(uint32 e
501		gpr(7) = result;
502
503		gpr(11) = 0xf072; // MSR (SRR1)
504	<	cr().set((gpr(11) & 0x0fff0000) | (cr().get() & ~0x0fff0000));
504	>	cr().set((gpr(11) & 0x0fff0000) | (get_cr() & ~0x0fff0000));
505
506		// Enter nanokernel
507		execute(entry);
508
509	<	// Cleanup stack
510	<	gpr(1) += 64;
509	>	// Restore program counters and branch registers
510	>	pc() = saved_pc;
511	>	lr() = saved_lr;
512	>	ctr()= saved_ctr;
513	>	gpr(1) = saved_sp;
514	>
515	>	#if EMUL_TIME_STATS
516	>	interrupt_time += (clock() - interrupt_start);
517	>	#endif
518		}
519
520		// Execute 68k routine
521		void sheepshaver_cpu::execute_68k(uint32 entry, M68kRegisters *r)
522		{
523	+	#if EMUL_TIME_STATS
524	+	exec68k_count++;
525	+	const clock_t exec68k_start = clock();
526	+	#endif
527	+
528		#if SAFE_EXEC_68K
529		if (ReadMacInt32(XLM_RUN_MODE) != MODE_EMUL_OP)
530		printf("FATAL: Execute68k() not called from EMUL_OP mode\n");
#	Line 277 | Line 534 | void sheepshaver_cpu::execute_68k(uint32
534		uint32 saved_pc = pc();
535		uint32 saved_lr = lr();
536		uint32 saved_ctr= ctr();
537	+	uint32 saved_cr = get_cr();
538
539		// Create MacOS stack frame
540	+	// FIXME: make sure MacOS doesn't expect PPC registers to live on top
541		uint32 sp = gpr(1);
542	<	gpr(1) -= 56 + 19*4 + 18*8;
542	>	gpr(1) -= 56;
543		WriteMacInt32(gpr(1), sp);
544
545		// Save PowerPC registers
546	<	memcpy(Mac2HostAddr(gpr(1)+56), &gpr(13), sizeof(uint32)*(32-13));
546	>	uint32 saved_GPRs[19];
547	>	memcpy(&saved_GPRs[0], &gpr(13), sizeof(uint32)*(32-13));
548		#if SAVE_FP_EXEC_68K
549	<	memcpy(Mac2HostAddr(gpr(1)+56+19*4), &fpr(14), sizeof(double)*(32-14));
549	>	double saved_FPRs[18];
550	>	memcpy(&saved_FPRs[0], &fpr(14), sizeof(double)*(32-14));
551		#endif
552
553		// Setup registers for 68k emulator
554	<	cr().set(0);
294	<	cr().set(2, 1);                                                         // Supervisor mode
554	>	cr().set(CR_SO_field<2>::mask());                       // Supervisor mode
555		for (int i = 0; i < 8; i++)                                     // d[0]..d[7]
556		gpr(8 + i) = r->d[i];
557		for (int i = 0; i < 7; i++)                                     // a[0]..a[6]
#	Line 301 | Line 561 | void sheepshaver_cpu::execute_68k(uint32
561		gpr(25) = ReadMacInt32(XLM_68K_R25);            // MSB of SR
562		gpr(26) = 0;
563		gpr(28) = 0;                                                            // VBR
564	<	gpr(29) = kernel_data->ed.v[0x74 >> 2];         // Pointer to opcode table
565	<	gpr(30) = kernel_data->ed.v[0x78 >> 2];         // Address of emulator
564	>	gpr(29) = ntohl(kernel_data->ed.v[0x74 >> 2]);          // Pointer to opcode table
565	>	gpr(30) = ntohl(kernel_data->ed.v[0x78 >> 2]);          // Address of emulator
566		gpr(31) = KernelDataAddr + 0x1000;
567
568		// Push return address (points to EXEC_RETURN opcode) on stack
#	Line 334 | Line 594 | void sheepshaver_cpu::execute_68k(uint32
594		r->a[i] = gpr(16 + i);
595
596		// Restore PowerPC registers
597	<	memcpy(&gpr(13), Mac2HostAddr(gpr(1)+56), sizeof(uint32)*(32-13));
597	>	memcpy(&gpr(13), &saved_GPRs[0], sizeof(uint32)*(32-13));
598		#if SAVE_FP_EXEC_68K
599	<	memcpy(&fpr(14), Mac2HostAddr(gpr(1)+56+19*4), sizeof(double)*(32-14));
599	>	memcpy(&fpr(14), &saved_FPRs[0], sizeof(double)*(32-14));
600		#endif
601
602		// Cleanup stack
603	<	gpr(1) += 56 + 19*4 + 18*8;
603	>	gpr(1) += 56;
604
605		// Restore program counters and branch registers
606		pc() = saved_pc;
607		lr() = saved_lr;
608		ctr()= saved_ctr;
609	+	set_cr(saved_cr);
610	+
611	+	#if EMUL_TIME_STATS
612	+	exec68k_time += (clock() - exec68k_start);
613	+	#endif
614		}
615
616		// Call MacOS PPC code
617		uint32 sheepshaver_cpu::execute_macos_code(uint32 tvect, int nargs, uint32 const *args)
618		{
619	+	#if EMUL_TIME_STATS
620	+	macos_exec_count++;
621	+	const clock_t macos_exec_start = clock();
622	+	#endif
623	+
624		// Save program counters and branch registers
625		uint32 saved_pc = pc();
626		uint32 saved_lr = lr();
627		uint32 saved_ctr= ctr();
628
629		// Build trampoline with EXEC_RETURN
630	<	uint32 trampoline[] = { POWERPC_EMUL_OP | 1 };
631	<	lr() = (uint32)trampoline;
630	>	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
631	>	lr() = trampoline.addr();
632
633		gpr(1) -= 64;                                                           // Create stack frame
634		uint32 proc = ReadMacInt32(tvect);                      // Get routine address
#	Line 389 | Line 659 | uint32 sheepshaver_cpu::execute_macos_co
659		lr() = saved_lr;
660		ctr()= saved_ctr;
661
662	+	#if EMUL_TIME_STATS
663	+	macos_exec_time += (clock() - macos_exec_start);
664	+	#endif
665	+
666		return retval;
667		}
668
669	+	// Execute ppc routine
670	+	inline void sheepshaver_cpu::execute_ppc(uint32 entry)
671	+	{
672	+	// Save branch registers
673	+	uint32 saved_lr = lr();
674	+
675	+	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
676	+	WriteMacInt32(trampoline.addr(), POWERPC_EXEC_RETURN);
677	+	lr() = trampoline.addr();
678	+
679	+	execute(entry);
680	+
681	+	// Restore branch registers
682	+	lr() = saved_lr;
683	+	}
684	+
685		// Resource Manager thunk
686		inline void sheepshaver_cpu::get_resource(uint32 old_get_resource)
687		{
688	<	printf("ERROR: get_resource() unimplemented\n");
689	<	QuitEmulator();
688	>	uint32 type = gpr(3);
689	>	int16 id = gpr(4);
690	>
691	>	// Create stack frame
692	>	gpr(1) -= 56;
693	>
694	>	// Call old routine
695	>	execute_ppc(old_get_resource);
696	>
697	>	// Call CheckLoad()
698	>	uint32 handle = gpr(3);
699	>	check_load_invoc(type, id, handle);
700	>	gpr(3) = handle;
701	>
702	>	// Cleanup stack
703	>	gpr(1) += 56;
704		}
705
706
#	Line 404 | Line 708 | inline void sheepshaver_cpu::get_resourc
708		*              SheepShaver CPU engine interface
709		**/
710
711	<	static sheepshaver_cpu *main_cpu = NULL;                // CPU emulator to handle usual control flow
712	<	static sheepshaver_cpu *interrupt_cpu = NULL;   // CPU emulator to handle interrupts
713	<	static sheepshaver_cpu *current_cpu = NULL;             // Current CPU emulator context
711	>	// PowerPC CPU emulator
712	>	static sheepshaver_cpu *ppc_cpu = NULL;
713	>
714	>	void FlushCodeCache(uintptr start, uintptr end)
715	>	{
716	>	D(bug("FlushCodeCache(%08x, %08x)\n", start, end));
717	>	ppc_cpu->invalidate_cache_range(start, end);
718	>	}
719
720		// Dump PPC registers
721		static void dump_registers(void)
722		{
723	<	current_cpu->dump_registers();
723	>	ppc_cpu->dump_registers();
724		}
725
726		// Dump log
727		static void dump_log(void)
728		{
729	<	current_cpu->dump_log();
729	>	ppc_cpu->dump_log();
730		}
731
732		/*
733		*  Initialize CPU emulation
734		*/
735
736	<	static struct sigaction sigsegv_action;
428	<
429	<	#if defined(__powerpc__)
430	<	#include <sys/ucontext.h>
431	<	#endif
432	<
433	<	static void sigsegv_handler(int sig, siginfo_t *sip, void *scp)
736	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
737		{
435	–	const uintptr addr = (uintptr)sip->si_addr;
738		#if ENABLE_VOSF
739	<	// Handle screen fault.
740	<	extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
741	<	if (Screen_fault_handler((sigsegv_address_t)addr, SIGSEGV_INVALID_PC))
742	<	return;
739	>	// Handle screen fault
740	>	extern bool Screen_fault_handler(sigsegv_address_t, sigsegv_address_t);
741	>	if (Screen_fault_handler(fault_address, fault_instruction))
742	>	return SIGSEGV_RETURN_SUCCESS;
743		#endif
744	<	#if defined(__powerpc__)
745	<	if (addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) {
746	<	printf("IGNORE write access to ROM at %08x\n", addr);
747	<	(((ucontext_t *)scp)->uc_mcontext.regs)->nip += 4;
748	<	return;
749	<	}
750	<	if (addr >= 0xf3012000 && addr < 0xf3014000 && 0) {
751	<	printf("IGNORE write access to ROM at %08x\n", addr);
752	<	(((ucontext_t *)scp)->uc_mcontext.regs)->nip += 4;
753	<	return;
744	>
745	>	const uintptr addr = (uintptr)fault_address;
746	>	#if HAVE_SIGSEGV_SKIP_INSTRUCTION
747	>	// Ignore writes to ROM
748	>	if ((addr - (uintptr)ROMBaseHost) < ROM_SIZE)
749	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
750	>
751	>	// Get program counter of target CPU
752	>	sheepshaver_cpu * const cpu = ppc_cpu;
753	>	const uint32 pc = cpu->pc();
754	>
755	>	// Fault in Mac ROM or RAM?
756	>	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));
757	>	if (mac_fault) {
758	>
759	>	// "VM settings" during MacOS 8 installation
760	>	if (pc == ROM_BASE + 0x488160 && cpu->gpr(20) == 0xf8000000)
761	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
762	>
763	>	// MacOS 8.5 installation
764	>	else if (pc == ROM_BASE + 0x488140 && cpu->gpr(16) == 0xf8000000)
765	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
766	>
767	>	// MacOS 8 serial drivers on startup
768	>	else if (pc == ROM_BASE + 0x48e080 && (cpu->gpr(8) == 0xf3012002 || cpu->gpr(8) == 0xf3012000))
769	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
770	>
771	>	// MacOS 8.1 serial drivers on startup
772	>	else if (pc == ROM_BASE + 0x48c5e0 && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
773	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
774	>	else if (pc == ROM_BASE + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
775	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
776	>
777	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
778	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(16) == 0xf3012002 || cpu->gpr(16) == 0xf3012000))
779	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
780	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
781	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
782	>
783	>	// Ignore writes to the zero page
784	>	else if ((uint32)(addr - SheepMem::ZeroPage()) < (uint32)SheepMem::PageSize())
785	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
786	>
787	>	// Ignore all other faults, if requested
788	>	if (PrefsFindBool("ignoresegv"))
789	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
790		}
453	–	#endif
454	–	printf("Caught SIGSEGV at address %p\n", sip->si_addr);
455	–	printf("Native PC: %08x\n", (((ucontext_t *)scp)->uc_mcontext.regs)->nip);
456	–	printf("Current CPU: %s\n", current_cpu == main_cpu ? "main" : "interrupts");
457	–	#if 1
458	–	dump_registers();
791		#else
792	<	printf("Main CPU context\n");
461	<	main_cpu->dump_registers();
462	<	printf("Interrupts CPU context\n");
463	<	interrupt_cpu->dump_registers();
792	>	#error "FIXME: You don't have the capability to skip instruction within signal handlers"
793		#endif
794	<	current_cpu->dump_log();
795	<	WriteMacInt32(XLM_IRQ_NEST, 1);
794	>
795	>	fprintf(stderr, "SIGSEGV\n");
796	>	fprintf(stderr, "  pc %p\n", fault_instruction);
797	>	fprintf(stderr, "  ea %p\n", fault_address);
798	>	dump_registers();
799	>	ppc_cpu->dump_log();
800		enter_mon();
801		QuitEmulator();
802	+
803	+	return SIGSEGV_RETURN_FAILURE;
804		}
805
806		void init_emul_ppc(void)
807		{
808	+	// Get pointer to KernelData in host address space
809	+	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
810	+
811		// Initialize main CPU emulator
812	<	main_cpu = new sheepshaver_cpu();
813	<	main_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
812	>	ppc_cpu = new sheepshaver_cpu();
813	>	ppc_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
814	>	ppc_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
815		WriteMacInt32(XLM_RUN_MODE, MODE_68K);
816
478	–	// Initialize alternate CPU emulator to handle interrupts
479	–	interrupt_cpu = new sheepshaver_cpu();
480	–
481	–	// Install SIGSEGV handler
482	–	sigemptyset(&sigsegv_action.sa_mask);
483	–	sigsegv_action.sa_sigaction = sigsegv_handler;
484	–	sigsegv_action.sa_flags = SA_SIGINFO;
485	–	sigsegv_action.sa_restorer = NULL;
486	–	sigaction(SIGSEGV, &sigsegv_action, NULL);
487	–
817		#if ENABLE_MON
818		// Install "regs" command in cxmon
819		mon_add_command("regs", dump_registers, "regs                     Dump PowerPC registers\n");
820		mon_add_command("log", dump_log, "log                      Dump PowerPC emulation log\n");
821		#endif
822	+
823	+	#if EMUL_TIME_STATS
824	+	emul_start_time = clock();
825	+	#endif
826	+	}
827	+
828	+	/*
829	+	*  Deinitialize emulation
830	+	*/
831	+
832	+	void exit_emul_ppc(void)
833	+	{
834	+	#if EMUL_TIME_STATS
835	+	clock_t emul_end_time = clock();
836	+
837	+	printf("### Statistics for SheepShaver emulation parts\n");
838	+	const clock_t emul_time = emul_end_time - emul_start_time;
839	+	printf("Total emulation time : %.1f sec\n", double(emul_time) / double(CLOCKS_PER_SEC));
840	+	printf("Total interrupt count: %d (%2.1f Hz)\n", interrupt_count,
841	+	(double(interrupt_count) * CLOCKS_PER_SEC) / double(emul_time));
842	+	printf("Total ppc interrupt count: %d (%2.1f %%)\n", ppc_interrupt_count,
843	+	(double(ppc_interrupt_count) * 100.0) / double(interrupt_count));
844	+
845	+	#define PRINT_STATS(LABEL, VAR_PREFIX) do {                                                             \
846	+	printf("Total " LABEL " count : %d\n", VAR_PREFIX##_count);             \
847	+	printf("Total " LABEL " time  : %.1f sec (%.1f%%)\n",                   \
848	+	double(VAR_PREFIX##_time) / double(CLOCKS_PER_SEC),          \
849	+	100.0 * double(VAR_PREFIX##_time) / double(emul_time));      \
850	+	} while (0)
851	+
852	+	PRINT_STATS("Execute68k[Trap] execution", exec68k);
853	+	PRINT_STATS("NativeOp execution", native_exec);
854	+	PRINT_STATS("MacOS routine execution", macos_exec);
855	+
856	+	#undef PRINT_STATS
857	+	printf("\n");
858	+	#endif
859	+
860	+	delete ppc_cpu;
861	+	ppc_cpu = NULL;
862		}
863
864	+	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
865	+	// Initialize EmulOp trampolines
866	+	void init_emul_op_trampolines(basic_dyngen & dg)
867	+	{
868	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
869	+	func_t func;
870	+
871	+	// EmulOp
872	+	emul_op_trampoline = dg.gen_start();
873	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
874	+	dg.gen_invoke_CPU_T0(func);
875	+	dg.gen_exec_return();
876	+	dg.gen_end();
877	+
878	+	// NativeOp
879	+	native_op_trampoline = dg.gen_start();
880	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
881	+	dg.gen_invoke_CPU_T0(func);
882	+	dg.gen_exec_return();
883	+	dg.gen_end();
884	+
885	+	D(bug("EmulOp trampoline:   %p\n", emul_op_trampoline));
886	+	D(bug("NativeOp trampoline: %p\n", native_op_trampoline));
887	+	}
888	+	#endif
889	+
890		/*
891		*  Emulation loop
892		*/
893
894		void emul_ppc(uint32 entry)
895		{
896	<	current_cpu = main_cpu;
897	<	current_cpu->start_log();
898	<	current_cpu->execute(entry);
896	>	#if 0
897	>	ppc_cpu->start_log();
898	>	#endif
899	>	// start emulation loop and enable code translation or caching
900	>	ppc_cpu->execute(entry);
901		}
902
903		/*
904		*  Handle PowerPC interrupt
905		*/
906
907	<	// Atomic operations
908	<	extern int atomic_add(int *var, int v);
909	<	extern int atomic_and(int *var, int v);
910	<	extern int atomic_or(int *var, int v);
907	>	void TriggerInterrupt(void)
908	>	{
909	>	idle_resume();
910	>	#if 0
911	>	WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
912	>	#else
913	>	// Trigger interrupt to main cpu only
914	>	if (ppc_cpu)
915	>	ppc_cpu->trigger_interrupt();
916	>	#endif
917	>	}
918
919	<	void HandleInterrupt(void)
919	>	void HandleInterrupt(powerpc_registers *r)
920		{
921	<	// Do nothing if interrupts are disabled
922	<	if (ReadMacInt32(XLM_IRQ_NEST) > 0 || InterruptFlags == 0)
923	<	return;
921	>	#ifdef USE_SDL_VIDEO
922	>	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
923	>	SDL_PumpEvents();
924	>	#endif
925
926	<	// Do nothing if CPU objects are not initialized yet
927	<	if (current_cpu == NULL)
926	>	// Do nothing if interrupts are disabled
927	>	if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
928		return;
929
930	<	// Disable MacOS stack sniffer
931	<	WriteMacInt32(0x110, 0);
930	>	// Update interrupt count
931	>	#if EMUL_TIME_STATS
932	>	interrupt_count++;
933	>	#endif
934
935		// Interrupt action depends on current run mode
936		switch (ReadMacInt32(XLM_RUN_MODE)) {
937		case MODE_68K:
938		// 68k emulator active, trigger 68k interrupt level 1
532	–	assert(current_cpu == main_cpu);
939		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
940	<	main_cpu->set_cr(main_cpu->get_cr() | tswap32(kernel_data->v[0x674 >> 2]));
940	>	r->cr.set(r->cr.get() | tswap32(kernel_data->v[0x674 >> 2]));
941		break;
942
943		#if INTERRUPTS_IN_NATIVE_MODE
944		case MODE_NATIVE:
945		// 68k emulator inactive, in nanokernel?
946	<	assert(current_cpu == main_cpu);
947	<	if (main_cpu->gpr(1) != KernelDataAddr) {
946	>	if (r->gpr[1] != KernelDataAddr) {
947	>
948		// Prepare for 68k interrupt level 1
949		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
950		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 546 | Line 952 | void HandleInterrupt(void)
952		| tswap32(kernel_data->v[0x674 >> 2]));
953
954		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
955	<	atomic_add((int32 *)XLM_IRQ_NEST, htonl(1));
550	<	current_cpu = interrupt_cpu;
955	>	DisableInterrupt();
956		if (ROMType == ROMTYPE_NEWWORLD)
957	<	current_cpu->interrupt(ROM_BASE + 0x312b1c, main_cpu->get_sp());
957	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
958		else
959	<	current_cpu->interrupt(ROM_BASE + 0x312a3c, main_cpu->get_sp());
555	<	current_cpu = main_cpu;
959	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
960		}
961		break;
962		#endif
#	Line 561 | Line 965 | void HandleInterrupt(void)
965		case MODE_EMUL_OP:
966		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
967		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
968	+	#if EMUL_TIME_STATS
969	+	const clock_t interrupt_start = clock();
970	+	#endif
971		#if 1
972		// Execute full 68k interrupt routine
973		M68kRegisters r;
974		uint32 old_r25 = ReadMacInt32(XLM_68K_R25);     // Save interrupt level
975		WriteMacInt32(XLM_68K_R25, 0x21);                       // Execute with interrupt level 1
976	<	static const uint16 proc[] = {
977	<	0x3f3c, 0x0000,         // move.w       #$0000,-(sp)    (fake format word)
978	<	0x487a, 0x000a,         // pea          @1(pc)                  (return address)
979	<	0x40e7,                         // move         sr,-(sp)                (saved SR)
980	<	0x2078, 0x0064,         // move.l       $64,a0
981	<	0x4ed0,                         // jmp          (a0)
982	<	M68K_RTS                        // @1
976	>	static const uint8 proc_template[] = {
977	>	0x3f, 0x3c, 0x00, 0x00,                 // move.w       #$0000,-(sp)    (fake format word)
978	>	0x48, 0x7a, 0x00, 0x0a,                 // pea          @1(pc)                  (return address)
979	>	0x40, 0xe7,                                             // move         sr,-(sp)                (saved SR)
980	>	0x20, 0x78, 0x00, 0x064,                // move.l       $64,a0
981	>	0x4e, 0xd0,                                             // jmp          (a0)
982	>	M68K_RTS >> 8, M68K_RTS & 0xff  // @1
983		};
984	<	Execute68k((uint32)proc, &r);
984	>	BUILD_SHEEPSHAVER_PROCEDURE(proc);
985	>	Execute68k(proc, &r);
986		WriteMacInt32(XLM_68K_R25, old_r25);            // Restore interrupt level
987		#else
988		// Only update cursor
#	Line 582 | Line 990 | void HandleInterrupt(void)
990		if (InterruptFlags & INTFLAG_VIA) {
991		ClearInterruptFlag(INTFLAG_VIA);
992		ADBInterrupt();
993	<	ExecutePPC(VideoVBL);
993	>	ExecuteNative(NATIVE_VIDEO_VBL);
994		}
995		}
996		#endif
997	+	#if EMUL_TIME_STATS
998	+	interrupt_time += (clock() - interrupt_start);
999	+	#endif
1000		}
1001		break;
1002		#endif
1003		}
1004		}
1005
1006	<	/*
1007	<	*  Execute NATIVE_OP opcode (called by PowerPC emulator)
597	<	*/
598	<
599	<	#define POWERPC_NATIVE_OP(selector) \
600	<	{ tswap32(POWERPC_EMUL_OP | 2 | (((uint32)selector) << 6)) }
601	<
602	<	// FIXME: Make sure 32-bit relocations are used
603	<	const uint32 NativeOpTable[NATIVE_OP_MAX] = {
604	<	POWERPC_NATIVE_OP(NATIVE_PATCH_NAME_REGISTRY),
605	<	POWERPC_NATIVE_OP(NATIVE_VIDEO_INSTALL_ACCEL),
606	<	POWERPC_NATIVE_OP(NATIVE_VIDEO_VBL),
607	<	POWERPC_NATIVE_OP(NATIVE_VIDEO_DO_DRIVER_IO),
608	<	POWERPC_NATIVE_OP(NATIVE_ETHER_IRQ),
609	<	POWERPC_NATIVE_OP(NATIVE_ETHER_INIT),
610	<	POWERPC_NATIVE_OP(NATIVE_ETHER_TERM),
611	<	POWERPC_NATIVE_OP(NATIVE_ETHER_OPEN),
612	<	POWERPC_NATIVE_OP(NATIVE_ETHER_CLOSE),
613	<	POWERPC_NATIVE_OP(NATIVE_ETHER_WPUT),
614	<	POWERPC_NATIVE_OP(NATIVE_ETHER_RSRV),
615	<	POWERPC_NATIVE_OP(NATIVE_SERIAL_NOTHING),
616	<	POWERPC_NATIVE_OP(NATIVE_SERIAL_OPEN),
617	<	POWERPC_NATIVE_OP(NATIVE_SERIAL_PRIME_IN),
618	<	POWERPC_NATIVE_OP(NATIVE_SERIAL_PRIME_OUT),
619	<	POWERPC_NATIVE_OP(NATIVE_SERIAL_CONTROL),
620	<	POWERPC_NATIVE_OP(NATIVE_SERIAL_STATUS),
621	<	POWERPC_NATIVE_OP(NATIVE_SERIAL_CLOSE),
622	<	POWERPC_NATIVE_OP(NATIVE_GET_RESOURCE),
623	<	POWERPC_NATIVE_OP(NATIVE_GET_1_RESOURCE),
624	<	POWERPC_NATIVE_OP(NATIVE_GET_IND_RESOURCE),
625	<	POWERPC_NATIVE_OP(NATIVE_GET_1_IND_RESOURCE),
626	<	POWERPC_NATIVE_OP(NATIVE_R_GET_RESOURCE),
627	<	};
628	<
629	<	static void get_resource(void);
630	<	static void get_1_resource(void);
631	<	static void get_ind_resource(void);
632	<	static void get_1_ind_resource(void);
633	<	static void r_get_resource(void);
634	<
635	<	#define GPR(REG) current_cpu->gpr(REG)
636	<
637	<	static void NativeOp(int selector)
1006	>	// Execute NATIVE_OP routine
1007	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
1008		{
1009	+	#if EMUL_TIME_STATS
1010	+	native_exec_count++;
1011	+	const clock_t native_exec_start = clock();
1012	+	#endif
1013	+
1014		switch (selector) {
1015		case NATIVE_PATCH_NAME_REGISTRY:
1016		DoPatchNameRegistry();
#	Line 647 | Line 1022 | static void NativeOp(int selector)
1022		VideoVBL();
1023		break;
1024		case NATIVE_VIDEO_DO_DRIVER_IO:
1025	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void *)GPR(3), (void *)GPR(4),
651	<	(void *)GPR(5), GPR(6), GPR(7));
1025	>	gpr(3) = (int32)(int16)VideoDoDriverIO(gpr(3), gpr(4), gpr(5), gpr(6), gpr(7));
1026		break;
1027	<	case NATIVE_GET_RESOURCE:
1028	<	get_resource();
1027	>	case NATIVE_ETHER_AO_GET_HWADDR:
1028	>	AO_get_ethernet_address(gpr(3));
1029		break;
1030	<	case NATIVE_GET_1_RESOURCE:
1031	<	get_1_resource();
1030	>	case NATIVE_ETHER_AO_ADD_MULTI:
1031	>	AO_enable_multicast(gpr(3));
1032		break;
1033	<	case NATIVE_GET_IND_RESOURCE:
1034	<	get_ind_resource();
1033	>	case NATIVE_ETHER_AO_DEL_MULTI:
1034	>	AO_disable_multicast(gpr(3));
1035		break;
1036	<	case NATIVE_GET_1_IND_RESOURCE:
1037	<	get_1_ind_resource();
1036	>	case NATIVE_ETHER_AO_SEND_PACKET:
1037	>	AO_transmit_packet(gpr(3));
1038		break;
1039	<	case NATIVE_R_GET_RESOURCE:
1040	<	r_get_resource();
1039	>	case NATIVE_ETHER_IRQ:
1040	>	EtherIRQ();
1041	>	break;
1042	>	case NATIVE_ETHER_INIT:
1043	>	gpr(3) = InitStreamModule((void *)gpr(3));
1044	>	break;
1045	>	case NATIVE_ETHER_TERM:
1046	>	TerminateStreamModule();
1047	>	break;
1048	>	case NATIVE_ETHER_OPEN:
1049	>	gpr(3) = ether_open((queue_t *)gpr(3), (void *)gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1050	>	break;
1051	>	case NATIVE_ETHER_CLOSE:
1052	>	gpr(3) = ether_close((queue_t *)gpr(3), gpr(4), (void *)gpr(5));
1053	>	break;
1054	>	case NATIVE_ETHER_WPUT:
1055	>	gpr(3) = ether_wput((queue_t *)gpr(3), (mblk_t *)gpr(4));
1056	>	break;
1057	>	case NATIVE_ETHER_RSRV:
1058	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1059	>	break;
1060	>	case NATIVE_NQD_SYNC_HOOK:
1061	>	gpr(3) = NQD_sync_hook(gpr(3));
1062	>	break;
1063	>	case NATIVE_NQD_UNKNOWN_HOOK:
1064	>	gpr(3) = NQD_unknown_hook(gpr(3));
1065	>	break;
1066	>	case NATIVE_NQD_BITBLT_HOOK:
1067	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1068	>	break;
1069	>	case NATIVE_NQD_BITBLT:
1070	>	NQD_bitblt(gpr(3));
1071	>	break;
1072	>	case NATIVE_NQD_FILLRECT_HOOK:
1073	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1074	>	break;
1075	>	case NATIVE_NQD_INVRECT:
1076	>	NQD_invrect(gpr(3));
1077	>	break;
1078	>	case NATIVE_NQD_FILLRECT:
1079	>	NQD_fillrect(gpr(3));
1080		break;
1081		case NATIVE_SERIAL_NOTHING:
1082		case NATIVE_SERIAL_OPEN:
#	Line 682 | 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	+	get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1103	+	break;
1104	+	case NATIVE_GET_1_RESOURCE:
1105	+	get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1106	+	break;
1107	+	case NATIVE_GET_IND_RESOURCE:
1108	+	get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1109	+	break;
1110	+	case NATIVE_GET_1_IND_RESOURCE:
1111	+	get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1112	+	break;
1113	+	case NATIVE_R_GET_RESOURCE:
1114	+	get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1115	+	break;
1116	+	case NATIVE_MAKE_EXECUTABLE:
1117	+	MakeExecutable(0, gpr(4), gpr(5));
1118	+	break;
1119	+	case NATIVE_CHECK_LOAD_INVOC:
1120	+	check_load_invoc(gpr(3), gpr(4), gpr(5));
1121	+	break;
1122	+	case NATIVE_NAMED_CHECK_LOAD_INVOC:
1123	+	named_check_load_invoc(gpr(3), gpr(4), gpr(5));
1124	+	break;
1125		default:
1126		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
1127		QuitEmulator();
1128		break;
1129		}
693	–	}
1130
1131	<	/*
1132	<	*  Execute native subroutine (LR must contain return address)
1133	<	*/
698	<
699	<	void ExecuteNative(int selector)
700	<	{
701	<	uint32 tvect[2];
702	<	tvect[0] = tswap32(POWERPC_NATIVE_OP_FUNC(selector));
703	<	tvect[1] = 0; // Fake TVECT
704	<	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
705	<	M68kRegisters r;
706	<	Execute68k((uint32)&desc, &r);
1131	>	#if EMUL_TIME_STATS
1132	>	native_exec_time += (clock() - native_exec_start);
1133	>	#endif
1134		}
1135
1136		/*
#	Line 714 | Line 1141 | void ExecuteNative(int selector)
1141
1142		void Execute68k(uint32 pc, M68kRegisters *r)
1143		{
1144	<	current_cpu->execute_68k(pc, r);
1144	>	ppc_cpu->execute_68k(pc, r);
1145		}
1146
1147		/*
#	Line 724 | Line 1151 | void Execute68k(uint32 pc, M68kRegisters
1151
1152		void Execute68kTrap(uint16 trap, M68kRegisters *r)
1153		{
1154	<	uint16 proc[2] = {trap, M68K_RTS};
1155	<	Execute68k((uint32)proc, r);
1154	>	SheepVar proc_var(4);
1155	>	uint32 proc = proc_var.addr();
1156	>	WriteMacInt16(proc, trap);
1157	>	WriteMacInt16(proc + 2, M68K_RTS);
1158	>	Execute68k(proc, r);
1159		}
1160
1161		/*
#	Line 734 | Line 1164 | void Execute68kTrap(uint16 trap, M68kReg
1164
1165		uint32 call_macos(uint32 tvect)
1166		{
1167	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1167	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1168		}
1169
1170		uint32 call_macos1(uint32 tvect, uint32 arg1)
1171		{
1172		const uint32 args[] = { arg1 };
1173	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1173	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1174		}
1175
1176		uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1177		{
1178		const uint32 args[] = { arg1, arg2 };
1179	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1179	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1180		}
1181
1182		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1183		{
1184		const uint32 args[] = { arg1, arg2, arg3 };
1185	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1185	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1186		}
1187
1188		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1189		{
1190		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1191	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1191	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1192		}
1193
1194		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1195		{
1196		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1197	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1197	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1198		}
1199
1200		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1201		{
1202		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1203	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1203	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1204		}
1205
1206		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1207		{
1208		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1209	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
780	<	}
781	<
782	<	/*
783	<	*  Atomic operations
784	<	*/
785	<
786	<	int atomic_add(int *var, int v)
787	<	{
788	<	int ret = *var;
789	<	*var += v;
790	<	return ret;
791	<	}
792	<
793	<	int atomic_and(int *var, int v)
794	<	{
795	<	int ret = *var;
796	<	*var &= v;
797	<	return ret;
798	<	}
799	<
800	<	int atomic_or(int *var, int v)
801	<	{
802	<	int ret = *var;
803	<	*var |= v;
804	<	return ret;
805	<	}
806	<
807	<	/*
808	<	*  Resource Manager thunks
809	<	*/
810	<
811	<	extern "C" void check_load_invoc(uint32 type, int16 id, uint16 **h);
812	<
813	<	void get_resource(void)
814	<	{
815	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
816	<	}
817	<
818	<	void get_1_resource(void)
819	<	{
820	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
821	<	}
822	<
823	<	void get_ind_resource(void)
824	<	{
825	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
826	<	}
827	<
828	<	void get_1_ind_resource(void)
829	<	{
830	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
831	<	}
832	<
833	<	void r_get_resource(void)
834	<	{
835	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1209	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1210		}

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