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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.27 by gbeauche, 2004-02-15T17:17:36Z 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) 1997-2004 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 38 | Line 38
38		#include "name_registry.h"
39		#include "serial.h"
40		#include "ether.h"
41	+	#include "timer.h"
42
43		#include <stdio.h>
44	+	#include <stdlib.h>
45	+	#ifdef HAVE_MALLOC_H
46	+	#include <malloc.h>
47	+	#endif
48	+
49	+	#ifdef USE_SDL_VIDEO
50	+	#include <SDL_events.h>
51	+	#endif
52
53		#if ENABLE_MON
54		#include "mon.h"
#	Line 50 | Line 59
59		#include "debug.h"
60
61		// Emulation time statistics
62	<	#define EMUL_TIME_STATS 1
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;
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;
#	Line 78 | Line 89 | 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
85	–	// Enable multicore (main/interrupts) cpu emulation?
86	–	#define MULTICORE_CPU (ASYNC_IRQ ? 1 : 0)
87	–
97		// Enable Execute68k() safety checks?
98		#define SAFE_EXEC_68K 1
99
#	Line 98 | Line 107 | const uint32 POWERPC_EXEC_RETURN = POWER
107		#define INTERRUPTS_IN_NATIVE_MODE 1
108
109		// Pointer to Kernel Data
110	<	static KernelData * const kernel_data = (KernelData *)KERNEL_DATA_BASE;
110	>	static KernelData * kernel_data;
111
112		// SIGSEGV handler
113	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
113	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
114	>
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()
#	Line 136 | Line 151 | public:
151		uint32 get_xer() const          { return xer().get(); }
152		void set_xer(uint32 v)          { xer().set(v); }
153
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
#	Line 148 | Line 166 | public:
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 bool compile1(codegen_context_t & cg_context);
172	<
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);
159	–	void handle_interrupt();
160	–
161	–	// Lazy memory allocator (one item at a time)
162	–	void *operator new(size_t size)
163	–	{ return allocator_helper< sheepshaver_cpu, lazy_allocator >::allocate(); }
164	–	void operator delete(void *p)
165	–	{ allocator_helper< sheepshaver_cpu, lazy_allocator >::deallocate(p); }
166	–	// FIXME: really make surre array allocation fail at link time?
167	–	void *operator new[](size_t);
168	–	void operator delete[](void *p);
178
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
174	–	lazy_allocator< sheepshaver_cpu > allocator_helper< sheepshaver_cpu, lazy_allocator >::allocator;
175	–
183		sheepshaver_cpu::sheepshaver_cpu()
184		: powerpc_cpu(enable_jit_p())
185		{
#	Line 199 | Line 206 | void sheepshaver_cpu::init_decoder()
206		}
207		}
208
202	–	// Forward declaration for native opcode handler
203	–	static void NativeOp(int selector);
204	–
209		/*              NativeOp instruction format:
210	<	+------------+--------------------------+--+----------+------------+
211	<	|      6     |                          |FN|    OP    |      2     |
212	<	+------------+--------------------------+--+----------+------------+
213	<	0         5 |6                       19 20 21      25 26        31
210	>	+------------+-------------------------+--+-----------+------------+
211	>	|      6     |                         |FN|    OP     |      2     |
212	>	+------------+-------------------------+--+-----------+------------+
213	>	0         5 |6                      18 19 20      25 26        31
214		*/
215
216	<	typedef bit_field< 20, 20 > FN_field;
217	<	typedef bit_field< 21, 25 > NATIVE_OP_field;
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
#	Line 224 | Line 228 | void sheepshaver_cpu::execute_emul_op(ui
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() & CR_field<2>::mask();
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);
#	Line 253 | Line 257 | void sheepshaver_cpu::execute_sheep(uint
257		break;
258
259		case 2:         // EXEC_NATIVE
260	<	NativeOp(NATIVE_OP_field::extract(opcode));
260	>	execute_native_op(NATIVE_OP_field::extract(opcode));
261		if (FN_field::test(opcode))
262		pc() = lr();
263		else
#	Line 268 | Line 272 | void sheepshaver_cpu::execute_sheep(uint
272		}
273
274		// Compile one instruction
271	–	bool sheepshaver_cpu::compile1(codegen_context_t & cg_context)
272	–	{
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 false;
280	>	return COMPILE_FAILURE;
281
282	<	bool compiled = false;
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	<	compiled = true;
289	>	status = COMPILE_CODE_OK;
290		break;
291
292		case 1:         // EXEC_RETURN
293		dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN);
294	<	compiled = true;
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	<	compiled = true;
310	>	status = COMPILE_CODE_OK;
311		break;
312		case NATIVE_VIDEO_INSTALL_ACCEL:
313		dg.gen_invoke(VideoInstallAccel);
314	<	compiled = true;
314	>	status = COMPILE_CODE_OK;
315		break;
316		case NATIVE_VIDEO_VBL:
317		dg.gen_invoke(VideoVBL);
318	<	compiled = true;
318	>	status = COMPILE_CODE_OK;
319		break;
320		case NATIVE_GET_RESOURCE:
321		case NATIVE_GET_1_RESOURCE:
#	Line 321 | Line 333 | bool sheepshaver_cpu::compile1(codegen_c
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	<	compiled = true;
336	>	status = COMPILE_CODE_OK;
337		break;
338		}
339	<	case NATIVE_DISABLE_INTERRUPT:
328	<	dg.gen_invoke(DisableInterrupt);
329	<	compiled = true;
330	<	break;
331	<	case NATIVE_ENABLE_INTERRUPT:
332	<	dg.gen_invoke(EnableInterrupt);
333	<	compiled = true;
334	<	break;
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	<	compiled = true;
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	<	if (FN_field::test(opcode)) {
396	<	if (compiled) {
397	<	dg.gen_load_A0_LR();
398	<	dg.gen_set_PC_A0();
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	<	cg_context.done_compile = true;
404	>	break;
405		}
406	<	else
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
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_field::extract(opcode) - 3);
447	>	dg.gen_invoke_CPU_im(func, emul_op);
448		cg_context.done_compile = false;
449	<	compiled = true;
449	>	status = COMPILE_CODE_OK;
450		break;
451		}
452		}
453	<	return compiled;
366	<	#endif
367	<	return false;
453	>	return status;
454		}
455	+	#endif
456
457		// Handle MacOS interrupt
458		void sheepshaver_cpu::interrupt(uint32 entry)
459		{
460		#if EMUL_TIME_STATS
461	<	interrupt_count++;
461	>	ppc_interrupt_count++;
462		const clock_t interrupt_start = clock();
463		#endif
464
378	–	#if !MULTICORE_CPU
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);
384	–	#endif
470
471		// Initialize stack pointer to SheepShaver alternate stack base
472		gpr(1) = SignalStackBase() - 64;
#	Line 421 | Line 506 | void sheepshaver_cpu::interrupt(uint32 e
506		// Enter nanokernel
507		execute(entry);
508
424	–	#if !MULTICORE_CPU
509		// Restore program counters and branch registers
510		pc() = saved_pc;
511		lr() = saved_lr;
512		ctr()= saved_ctr;
513		gpr(1) = saved_sp;
430	–	#endif
514
515		#if EMUL_TIME_STATS
516		interrupt_time += (clock() - interrupt_start);
#	Line 625 | 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
630	<	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	<	main_cpu->invalidate_cache_range(start, end);
636	<	#if MULTICORE_CPU
637	<	interrupt_cpu->invalidate_cache_range(start, end);
638	<	#endif
639	<	}
640	<
641	<	static inline void cpu_push(sheepshaver_cpu *new_cpu)
642	<	{
643	<	#if MULTICORE_CPU
644	<	current_cpu = new_cpu;
645	<	#endif
646	<	}
647	<
648	<	static inline void cpu_pop()
649	<	{
650	<	#if MULTICORE_CPU
651	<	current_cpu = main_cpu;
652	<	#endif
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 sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
736	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
737		{
738		#if ENABLE_VOSF
739		// Handle screen fault
#	Line 680 | Line 745 | static sigsegv_return_t sigsegv_handler(
745		const uintptr addr = (uintptr)fault_address;
746		#if HAVE_SIGSEGV_SKIP_INSTRUCTION
747		// Ignore writes to ROM
748	<	if ((addr - ROM_BASE) < ROM_SIZE)
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 = current_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));
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
#	Line 708 | Line 773 | static sigsegv_return_t sigsegv_handler(
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"))
#	Line 717 | Line 792 | static sigsegv_return_t sigsegv_handler(
792		#error "FIXME: You don't have the capability to skip instruction within signal handlers"
793		#endif
794
795	<	printf("SIGSEGV\n");
796	<	printf("  pc %p\n", fault_instruction);
797	<	printf("  ea %p\n", fault_address);
723	<	printf(" cpu %s\n", current_cpu == main_cpu ? "main" : "interrupts");
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	<	current_cpu->dump_log();
799	>	ppc_cpu->dump_log();
800		enter_mon();
801		QuitEmulator();
802
#	Line 731 | Line 805 | static sigsegv_return_t sigsegv_handler(
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));
814	<	main_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
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
740	–	#if MULTICORE_CPU
741	–	// Initialize alternate CPU emulator to handle interrupts
742	–	interrupt_cpu = new sheepshaver_cpu();
743	–	#endif
744	–
745	–	// Install the handler for SIGSEGV
746	–	sigsegv_install_handler(sigsegv_handler);
747	–
817		#if ENABLE_MON
818		// Install "regs" command in cxmon
819		mon_add_command("regs", dump_registers, "regs                     Dump PowerPC registers\n");
#	Line 770 | Line 839 | void exit_emul_ppc(void)
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);             \
#	Line 786 | Line 857 | void exit_emul_ppc(void)
857		printf("\n");
858		#endif
859
860	<	delete main_cpu;
861	<	#if MULTICORE_CPU
791	<	delete interrupt_cpu;
792	<	#endif
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		{
801	–	current_cpu = main_cpu;
896		#if 0
897	<	current_cpu->start_log();
897	>	ppc_cpu->start_log();
898		#endif
899		// start emulation loop and enable code translation or caching
900	<	current_cpu->execute(entry);
900	>	ppc_cpu->execute(entry);
901		}
902
903		/*
904		*  Handle PowerPC interrupt
905		*/
906
813	–	#if ASYNC_IRQ
814	–	void HandleInterrupt(void)
815	–	{
816	–	main_cpu->handle_interrupt();
817	–	}
818	–	#else
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 (main_cpu)
915	<	main_cpu->trigger_interrupt();
914	>	if (ppc_cpu)
915	>	ppc_cpu->trigger_interrupt();
916		#endif
917		}
829	–	#endif
918
919	<	void sheepshaver_cpu::handle_interrupt(void)
919	>	void HandleInterrupt(powerpc_registers *r)
920		{
921	<	// Do nothing if interrupts are disabled
922	<	if (*(int32 *)XLM_IRQ_NEST > 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 there is no interrupt pending
927	<	if (InterruptFlags == 0)
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
848	–	assert(current_cpu == main_cpu);
939		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
940	<	set_cr(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 (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 863 | Line 953 | void sheepshaver_cpu::handle_interrupt(v
953
954		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
955		DisableInterrupt();
866	–	cpu_push(interrupt_cpu);
956		if (ROMType == ROMTYPE_NEWWORLD)
957	<	current_cpu->interrupt(ROM_BASE + 0x312b1c);
957	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
958		else
959	<	current_cpu->interrupt(ROM_BASE + 0x312a3c);
871	<	cpu_pop();
959	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
960		}
961		break;
962		#endif
#	Line 877 | Line 965 | void sheepshaver_cpu::handle_interrupt(v
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 uint8 proc[] = {
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)
#	Line 890 | Line 981 | void sheepshaver_cpu::handle_interrupt(v
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 902 | Line 994 | void sheepshaver_cpu::handle_interrupt(v
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	<	static void get_resource(void);
1007	<	static void get_1_resource(void);
913	<	static void get_ind_resource(void);
914	<	static void get_1_ind_resource(void);
915	<	static void r_get_resource(void);
916	<
917	<	#define GPR(REG) current_cpu->gpr(REG)
918	<
919	<	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++;
#	Line 934 | 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),
1026	<	(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_ETHER_AO_GET_HWADDR:
1028	>	AO_get_ethernet_address(gpr(3));
1029	>	break;
1030	>	case NATIVE_ETHER_AO_ADD_MULTI:
1031	>	AO_enable_multicast(gpr(3));
1032	>	break;
1033	>	case NATIVE_ETHER_AO_DEL_MULTI:
1034	>	AO_disable_multicast(gpr(3));
1035	>	break;
1036	>	case NATIVE_ETHER_AO_SEND_PACKET:
1037	>	AO_transmit_packet(gpr(3));
1038		break;
940	–	#ifdef WORDS_BIGENDIAN
1039		case NATIVE_ETHER_IRQ:
1040		EtherIRQ();
1041		break;
1042		case NATIVE_ETHER_INIT:
1043	<	GPR(3) = InitStreamModule((void *)GPR(3));
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));
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));
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));
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));
1058	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1059		break;
1060	<	#else
1061	<	case NATIVE_ETHER_INIT:
1062	<	// FIXME: needs more complicated thunks
1063	<	GPR(3) = false;
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;
967	–	#endif
1081		case NATIVE_SERIAL_NOTHING:
1082		case NATIVE_SERIAL_OPEN:
1083		case NATIVE_SERIAL_PRIME_IN:
#	Line 982 | 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	<	case NATIVE_GET_1_IND_RESOURCE:
992	<	case NATIVE_R_GET_RESOURCE: {
993	<	typedef void (*GetResourceCallback)(void);
994	<	static const GetResourceCallback get_resource_callbacks[] = {
995	<	get_resource,
996	<	get_1_resource,
997	<	get_ind_resource,
998	<	get_1_ind_resource,
999	<	r_get_resource
1000	<	};
1001	<	get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1108	>	get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1109		break;
1110	<	}
1111	<	case NATIVE_DISABLE_INTERRUPT:
1005	<	DisableInterrupt();
1110	>	case NATIVE_GET_1_IND_RESOURCE:
1111	>	get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1112		break;
1113	<	case NATIVE_ENABLE_INTERRUPT:
1114	<	EnableInterrupt();
1113	>	case NATIVE_R_GET_RESOURCE:
1114	>	get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1115		break;
1116		case NATIVE_MAKE_EXECUTABLE:
1117	<	MakeExecutable(0, (void *)GPR(4), GPR(5));
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));
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);
#	Line 1032 | Line 1141 | static void NativeOp(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 1055 | 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);
1101	<	}
1102	<
1103	<	/*
1104	<	*  Resource Manager thunks
1105	<	*/
1106	<
1107	<	void get_resource(void)
1108	<	{
1109	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1110	<	}
1111	<
1112	<	void get_1_resource(void)
1113	<	{
1114	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1115	<	}
1116	<
1117	<	void get_ind_resource(void)
1118	<	{
1119	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1120	<	}
1121	<
1122	<	void get_1_ind_resource(void)
1123	<	{
1124	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1125	<	}
1126	<
1127	<	void r_get_resource(void)
1128	<	{
1129	<	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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