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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.1 by gbeauche, 2003-09-07T14:25:01Z vs.
Revision 1.63 by gbeauche, 2005-06-30T09:09:59Z

#	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	+
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
98
#	Line 66 \| 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 {
71	<	uint32 v[0x400];
72	<	};
108	>	// Pointer to Kernel Data
109	>	static KernelData * kernel_data;
110
111	<	// Kernel Data
112	<	struct KernelData {
76	<	uint32 v[0x400];
77	<	EmulatorData ed;
78	<	};
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 95 \| Line 141 \| class sheepshaver_cpu
141
142		public:
143
144	<	sheepshaver_cpu()
145	<	: 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; }
144	>	// Constructor
145	>	sheepshaver_cpu();
146
147	<	// Condition Register accessors
147	>	// CR & XER accessors
148		uint32 get_cr() const { return cr().get(); }
149		void set_cr(uint32 v) { cr().set(v); }
150	+	uint32 get_xer() const { return xer().get(); }
151	+	void set_xer(uint32 v) { xer().set(v); }
152	+
153	+	// Execute NATIVE_OP routine
154	+	void execute_native_op(uint32 native_op);
155
156	<	// Execution loop
157	<	void execute(uint32 pc);
156	>	// Execute EMUL_OP routine
157	>	void execute_emul_op(uint32 emul_op);
158
159		// Execute 68k routine
160		void execute_68k(uint32 entry, M68kRegisters *r);
161
162	+	// Execute ppc routine
163	+	void execute_ppc(uint32 entry);
164	+
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, uint32 sp);
176	>	void interrupt(uint32 entry);
177	>
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(); }
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);
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	<	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;
144	<	#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 160 \| Line 247 \| void sheepshaver_cpu::init_decoder()
247		}
248		}
249
250	<	// Forward declaration for native opcode handler
251	<	static void NativeOp(int selector);
250	>	/* NativeOp instruction format:
251	>	+------------+-------------------------+--+-----------+------------+
252	>	\| 6 \| \|FN\| OP \| 2 \|
253	>	+------------+-------------------------+--+-----------+------------+
254	>	0 5 \|6 18 19 20 25 26 31
255	>	*/
256	>
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)
#	Line 173 \| 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((opcode >> 6) & 0x1f);
302	<	pc() = lr();
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;
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);
308	>	default: // EMUL_OP
309	>	execute_emul_op(EMUL_OP_field::extract(opcode) - 3);
310		pc() += 4;
311		break;
312		}
205	–	}
313		}
314
315	<	// Execution loop
316	<	void sheepshaver_cpu::execute(uint32 entry)
317	<	{
318	<	try {
319	<	pc() = entry;
320	<	powerpc_cpu::execute();
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	>	switch (opcode & 0x3f) {
328	>	case 0: // EMUL_RETURN
329	>	dg.gen_invoke(QuitEmulator);
330	>	status = COMPILE_CODE_OK;
331	>	break;
332	>
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		}
442	<	catch (sheepshaver_exec_return const &) {
443	<	// Nothing, simply return
442	>
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		}
218	–	catch (...) {
219	–	printf("ERROR: execute() received an unknown exception!\n");
220	–	QuitEmulator();
462		}
463	+	return status;
464		}
465	+	#endif
466
467		// Handle MacOS interrupt
468	<	void sheepshaver_cpu::interrupt(uint32 entry, uint32 sp)
468	>	void sheepshaver_cpu::interrupt(uint32 entry)
469		{
470	<	// Create stack frame
471	<	gpr(1) = sp - 64;
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	>	uint32 saved_sp = gpr(1);
480	>
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));
495		WriteMacInt32(gpr(6) + 0x14c, gpr(9));
#	Line 244 \| 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 256 \| 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
519	<	// Cleanup stack
520	<	gpr(1) += 64;
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 277 \| 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
564	<	cr().set(0);
294	<	cr().set(2, 1); // Supervisor mode
564	>	cr().set(CR_SO_field<2>::mask()); // Supervisor mode
565		for (int i = 0; i < 8; i++) // d[0]..d[7]
566		gpr(8 + i) = r->d[i];
567		for (int i = 0; i < 7; i++) // a[0]..a[6]
#	Line 301 \| 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 334 \| 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 389 \| 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
679	+	// Execute ppc routine
680	+	inline void sheepshaver_cpu::execute_ppc(uint32 entry)
681	+	{
682	+	// Save branch registers
683	+	uint32 saved_lr = lr();
684	+
685	+	SheepVar32 trampoline = POWERPC_EXEC_RETURN;
686	+	WriteMacInt32(trampoline.addr(), POWERPC_EXEC_RETURN);
687	+	lr() = trampoline.addr();
688	+
689	+	execute(entry);
690	+
691	+	// Restore branch registers
692	+	lr() = saved_lr;
693	+	}
694	+
695		// Resource Manager thunk
696		inline void sheepshaver_cpu::get_resource(uint32 old_get_resource)
697		{
698	<	printf("ERROR: get_resource() unimplemented\n");
699	<	QuitEmulator();
698	>	uint32 type = gpr(3);
699	>	int16 id = gpr(4);
700	>
701	>	// Create stack frame
702	>	gpr(1) -= 56;
703	>
704	>	// Call old routine
705	>	execute_ppc(old_get_resource);
706	>
707	>	// Call CheckLoad()
708	>	uint32 handle = gpr(3);
709	>	check_load_invoc(type, id, handle);
710	>	gpr(3) = handle;
711	>
712	>	// Cleanup stack
713	>	gpr(1) += 56;
714		}
715
716
#	Line 404 \| 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
723	<	static sheepshaver_cpu *current_cpu = NULL; // Current CPU emulator context
721	>	// PowerPC CPU emulator
722	>	static sheepshaver_cpu *ppc_cpu = NULL;
723	>
724	>	void FlushCodeCache(uintptr start, uintptr end)
725	>	{
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 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)
746	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
747		{
435	–	const uintptr addr = (uintptr)sip->si_addr;
748		#if ENABLE_VOSF
749	<	// Handle screen fault.
750	<	extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
751	<	if (Screen_fault_handler((sigsegv_address_t)addr, SIGSEGV_INVALID_PC))
752	<	return;
749	>	// Handle screen fault
750	>	extern bool Screen_fault_handler(sigsegv_address_t, sigsegv_address_t);
751	>	if (Screen_fault_handler(fault_address, fault_instruction))
752	>	return SIGSEGV_RETURN_SUCCESS;
753		#endif
754	<	#if defined(__powerpc__)
755	<	if (addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) {
756	<	printf("IGNORE write access to ROM at %08x\n", addr);
757	<	(((ucontext_t *)scp)->uc_mcontext.regs)->nip += 4;
758	<	return;
759	<	}
760	<	if (addr >= 0xf3012000 && addr < 0xf3014000 && 0) {
761	<	printf("IGNORE write access to ROM at %08x\n", addr);
762	<	(((ucontext_t *)scp)->uc_mcontext.regs)->nip += 4;
763	<	return;
754	>
755	>	const uintptr addr = (uintptr)fault_address;
756	>	#if HAVE_SIGSEGV_SKIP_INSTRUCTION
757	>	// Ignore writes to ROM
758	>	if ((addr - (uintptr)ROMBaseHost) < ROM_SIZE)
759	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
760	>
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		}
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();
801		#else
802	<	printf("Main CPU context\n");
461	<	main_cpu->dump_registers();
462	<	printf("Interrupts CPU context\n");
463	<	interrupt_cpu->dump_registers();
802	>	#error "FIXME: You don't have the capability to skip instruction within signal handlers"
803		#endif
804	<	current_cpu->dump_log();
805	<	WriteMacInt32(XLM_IRQ_NEST, 1);
804	>
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	>	ppc_cpu->dump_log();
810		enter_mon();
811		QuitEmulator();
812	+
813	+	return SIGSEGV_RETURN_FAILURE;
814		}
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
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	–
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
916	<	// Atomic operations
917	<	extern int atomic_add(int *var, int v);
918	<	extern int atomic_and(int *var, int v);
919	<	extern int atomic_or(int *var, int v);
916	>	void TriggerInterrupt(void)
917	>	{
918	>	#if 0
919	>	WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
920	>	#else
921	>	// Trigger interrupt to main cpu only
922	>	if (ppc_cpu)
923	>	ppc_cpu->trigger_interrupt();
924	>	#endif
925	>	}
926
927	<	void HandleInterrupt(void)
927	>	void HandleInterrupt(powerpc_registers *r)
928		{
929	<	// Do nothing if interrupts are disabled
930	<	if (ReadMacInt32(XLM_IRQ_NEST) > 0 \|\| InterruptFlags == 0)
931	<	return;
929	>	#ifdef USE_SDL_VIDEO
930	>	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
931	>	SDL_PumpEvents();
932	>	#endif
933
934	<	// Do nothing if CPU objects are not initialized yet
935	<	if (current_cpu == NULL)
934	>	// Do nothing if interrupts are disabled
935	>	if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
936		return;
937
938	<	// Disable MacOS stack sniffer
939	<	WriteMacInt32(0x110, 0);
938	>	// Update interrupt count
939	>	#if EMUL_TIME_STATS
940	>	interrupt_count++;
941	>	#endif
942
943		// Interrupt action depends on current run mode
944		switch (ReadMacInt32(XLM_RUN_MODE)) {
945		case MODE_68K:
946		// 68k emulator active, trigger 68k interrupt level 1
532	–	assert(current_cpu == main_cpu);
947		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
948	<	main_cpu->set_cr(main_cpu->get_cr() \| tswap32(kernel_data->v[0x674 >> 2]));
948	>	r->cr.set(r->cr.get() \| tswap32(kernel_data->v[0x674 >> 2]));
949		break;
950
951		#if INTERRUPTS_IN_NATIVE_MODE
952		case MODE_NATIVE:
953		// 68k emulator inactive, in nanokernel?
954	<	assert(current_cpu == main_cpu);
955	<	if (main_cpu->gpr(1) != KernelDataAddr) {
954	>	if (r->gpr[1] != KernelDataAddr) {
955	>
956		// Prepare for 68k interrupt level 1
957		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
958		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 546 \| Line 960 \| void HandleInterrupt(void)
960		\| tswap32(kernel_data->v[0x674 >> 2]));
961
962		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
963	<	atomic_add((int32 *)XLM_IRQ_NEST, htonl(1));
550	<	current_cpu = interrupt_cpu;
963	>	DisableInterrupt();
964		if (ROMType == ROMTYPE_NEWWORLD)
965	<	current_cpu->interrupt(ROM_BASE + 0x312b1c, main_cpu->get_sp());
965	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
966		else
967	<	current_cpu->interrupt(ROM_BASE + 0x312a3c, main_cpu->get_sp());
555	<	current_cpu = main_cpu;
967	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
968		}
969		break;
970		#endif
#	Line 561 \| Line 973 \| void HandleInterrupt(void)
973		case MODE_EMUL_OP:
974		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
975		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
976	+	#if EMUL_TIME_STATS
977	+	const clock_t interrupt_start = clock();
978	+	#endif
979		#if 1
980		// Execute full 68k interrupt routine
981		M68kRegisters r;
982		uint32 old_r25 = ReadMacInt32(XLM_68K_R25); // Save interrupt level
983		WriteMacInt32(XLM_68K_R25, 0x21); // Execute with interrupt level 1
984	<	static const uint16 proc[] = {
985	<	0x3f3c, 0x0000, // move.w #$0000,-(sp) (fake format word)
986	<	0x487a, 0x000a, // pea @1(pc) (return address)
987	<	0x40e7, // move sr,-(sp) (saved SR)
988	<	0x2078, 0x0064, // move.l $64,a0
989	<	0x4ed0, // jmp (a0)
990	<	M68K_RTS // @1
984	>	static const uint8 proc_template[] = {
985	>	0x3f, 0x3c, 0x00, 0x00, // move.w #$0000,-(sp) (fake format word)
986	>	0x48, 0x7a, 0x00, 0x0a, // pea @1(pc) (return address)
987	>	0x40, 0xe7, // move sr,-(sp) (saved SR)
988	>	0x20, 0x78, 0x00, 0x064, // move.l $64,a0
989	>	0x4e, 0xd0, // jmp (a0)
990	>	M68K_RTS >> 8, M68K_RTS & 0xff // @1
991		};
992	<	Execute68k((uint32)proc, &r);
992	>	BUILD_SHEEPSHAVER_PROCEDURE(proc);
993	>	Execute68k(proc, &r);
994		WriteMacInt32(XLM_68K_R25, old_r25); // Restore interrupt level
995		#else
996		// Only update cursor
#	Line 582 \| Line 998 \| void HandleInterrupt(void)
998		if (InterruptFlags & INTFLAG_VIA) {
999		ClearInterruptFlag(INTFLAG_VIA);
1000		ADBInterrupt();
1001	<	ExecutePPC(VideoVBL);
1001	>	ExecuteNative(NATIVE_VIDEO_VBL);
1002		}
1003		}
1004		#endif
1005	+	#if EMUL_TIME_STATS
1006	+	interrupt_time += (clock() - interrupt_start);
1007	+	#endif
1008		}
1009		break;
1010		#endif
1011		}
1012		}
1013
595	–	/*
596	–	* 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	–
1014		static void get_resource(void);
1015		static void get_1_resource(void);
1016		static void get_ind_resource(void);
1017		static void get_1_ind_resource(void);
1018		static void r_get_resource(void);
1019
1020	<	#define GPR(REG) current_cpu->gpr(REG)
1021	<
637	<	static void NativeOp(int selector)
1020	>	// Execute NATIVE_OP routine
1021	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
1022		{
1023	+	#if EMUL_TIME_STATS
1024	+	native_exec_count++;
1025	+	const clock_t native_exec_start = clock();
1026	+	#endif
1027	+
1028		switch (selector) {
1029		case NATIVE_PATCH_NAME_REGISTRY:
1030		DoPatchNameRegistry();
#	Line 647 \| Line 1036 \| static void NativeOp(int selector)
1036		VideoVBL();
1037		break;
1038		case NATIVE_VIDEO_DO_DRIVER_IO:
1039	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void )GPR(3), (void )GPR(4),
651	<	(void *)GPR(5), GPR(6), GPR(7));
1039	>	gpr(3) = (int32)(int16)VideoDoDriverIO(gpr(3), gpr(4), gpr(5), gpr(6), gpr(7));
1040		break;
1041	<	case NATIVE_GET_RESOURCE:
1042	<	get_resource();
1041	>	case NATIVE_ETHER_IRQ:
1042	>	EtherIRQ();
1043		break;
1044	<	case NATIVE_GET_1_RESOURCE:
1045	<	get_1_resource();
1044	>	case NATIVE_ETHER_INIT:
1045	>	gpr(3) = InitStreamModule((void *)gpr(3));
1046		break;
1047	<	case NATIVE_GET_IND_RESOURCE:
1048	<	get_ind_resource();
1047	>	case NATIVE_ETHER_TERM:
1048	>	TerminateStreamModule();
1049		break;
1050	<	case NATIVE_GET_1_IND_RESOURCE:
1051	<	get_1_ind_resource();
1050	>	case NATIVE_ETHER_OPEN:
1051	>	gpr(3) = ether_open((queue_t )gpr(3), (void )gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1052	>	break;
1053	>	case NATIVE_ETHER_CLOSE:
1054	>	gpr(3) = ether_close((queue_t )gpr(3), gpr(4), (void )gpr(5));
1055	>	break;
1056	>	case NATIVE_ETHER_WPUT:
1057	>	gpr(3) = ether_wput((queue_t )gpr(3), (mblk_t )gpr(4));
1058	>	break;
1059	>	case NATIVE_ETHER_RSRV:
1060	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1061	>	break;
1062	>	case NATIVE_SYNC_HOOK:
1063	>	gpr(3) = NQD_sync_hook(gpr(3));
1064		break;
1065	<	case NATIVE_R_GET_RESOURCE:
1066	<	r_get_resource();
1065	>	case NATIVE_BITBLT_HOOK:
1066	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1067	>	break;
1068	>	case NATIVE_BITBLT:
1069	>	NQD_bitblt(gpr(3));
1070	>	break;
1071	>	case NATIVE_FILLRECT_HOOK:
1072	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1073	>	break;
1074	>	case NATIVE_INVRECT:
1075	>	NQD_invrect(gpr(3));
1076	>	break;
1077	>	case NATIVE_FILLRECT:
1078	>	NQD_fillrect(gpr(3));
1079		break;
1080		case NATIVE_SERIAL_NOTHING:
1081		case NATIVE_SERIAL_OPEN:
#	Line 682 \| Line 1094 \| static void NativeOp(int selector)
1094		SerialStatus,
1095		SerialClose
1096		};
1097	<	GPR(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](GPR(3), GPR(4));
1097	>	gpr(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](gpr(3), gpr(4));
1098		break;
1099		}
1100	+	case NATIVE_GET_RESOURCE:
1101	+	case NATIVE_GET_1_RESOURCE:
1102	+	case NATIVE_GET_IND_RESOURCE:
1103	+	case NATIVE_GET_1_IND_RESOURCE:
1104	+	case NATIVE_R_GET_RESOURCE: {
1105	+	typedef void (*GetResourceCallback)(void);
1106	+	static const GetResourceCallback get_resource_callbacks[] = {
1107	+	::get_resource,
1108	+	::get_1_resource,
1109	+	::get_ind_resource,
1110	+	::get_1_ind_resource,
1111	+	::r_get_resource
1112	+	};
1113	+	get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1114	+	break;
1115	+	}
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		default:
1123		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
1124		QuitEmulator();
1125		break;
1126		}
693	–	}
694	–
695	–	/*
696	–	* Execute native subroutine (LR must contain return address)
697	–	*/
1127
1128	<	void ExecuteNative(int selector)
1129	<	{
1130	<	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);
1128	>	#if EMUL_TIME_STATS
1129	>	native_exec_time += (clock() - native_exec_start);
1130	>	#endif
1131		}
1132
1133		/*
#	Line 714 \| Line 1138 \| void ExecuteNative(int selector)
1138
1139		void Execute68k(uint32 pc, M68kRegisters *r)
1140		{
1141	<	current_cpu->execute_68k(pc, r);
1141	>	ppc_cpu->execute_68k(pc, r);
1142		}
1143
1144		/*
#	Line 724 \| Line 1148 \| void Execute68k(uint32 pc, M68kRegisters
1148
1149		void Execute68kTrap(uint16 trap, M68kRegisters *r)
1150		{
1151	<	uint16 proc[2] = {trap, M68K_RTS};
1152	<	Execute68k((uint32)proc, r);
1151	>	SheepVar proc_var(4);
1152	>	uint32 proc = proc_var.addr();
1153	>	WriteMacInt16(proc, trap);
1154	>	WriteMacInt16(proc + 2, M68K_RTS);
1155	>	Execute68k(proc, r);
1156		}
1157
1158		/*
#	Line 734 \| Line 1161 \| void Execute68kTrap(uint16 trap, M68kReg
1161
1162		uint32 call_macos(uint32 tvect)
1163		{
1164	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1164	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1165		}
1166
1167		uint32 call_macos1(uint32 tvect, uint32 arg1)
1168		{
1169		const uint32 args[] = { arg1 };
1170	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1170	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1171		}
1172
1173		uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1174		{
1175		const uint32 args[] = { arg1, arg2 };
1176	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1176	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1177		}
1178
1179		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1180		{
1181		const uint32 args[] = { arg1, arg2, arg3 };
1182	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1182	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1183		}
1184
1185		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1186		{
1187		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1188	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1188	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1189		}
1190
1191		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1192		{
1193		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1194	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1194	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1195		}
1196
1197		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1198		{
1199		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1200	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1200	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1201		}
1202
1203		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1204		{
1205		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1206	<	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;
1206	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1207		}
1208
1209		/*
1210		* Resource Manager thunks
1211		*/
1212
811	–	extern "C" void check_load_invoc(uint32 type, int16 id, uint16 **h);
812	–
1213		void get_resource(void)
1214		{
1215	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1215	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1216		}
1217
1218		void get_1_resource(void)
1219		{
1220	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1220	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1221		}
1222
1223		void get_ind_resource(void)
1224		{
1225	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1225	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1226		}
1227
1228		void get_1_ind_resource(void)
1229		{
1230	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1230	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1231		}
1232
1233		void r_get_resource(void)
1234		{
1235	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1235	>	ppc_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1236		}

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+Removed lines
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Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents): Revision 1.1 by gbeauche, 2003-09-07T14:25:01Z vs. Revision 1.63 by gbeauche, 2005-06-30T09:09:59Z

Diff Legend

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.1 by gbeauche, 2003-09-07T14:25:01Z vs.
Revision 1.63 by gbeauche, 2005-06-30T09:09:59Z