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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.37 by gbeauche, 2004-05-15T17:26:28Z vs.
Revision 1.67 by gbeauche, 2006-01-21T17:18:53Z

#	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 42 \| Line 42
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 52 \| 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 84 \| Line 93 \| extern "C" void check_load_invoc(uint32
93		// PowerPC EmulOp to exit from emulation looop
94		const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP \| 1;
95
87	–	// Enable multicore (main/interrupts) cpu emulation?
88	–	#define MULTICORE_CPU (ASYNC_IRQ ? 1 : 0)
89	–
90	–	// Enable interrupt routine safety checks?
91	–	#define SAFE_INTERRUPT_PPC 1
92	–
96		// Enable Execute68k() safety checks?
97		#define SAFE_EXEC_68K 1
98
#	Line 102 \| Line 105 \| const uint32 POWERPC_EXEC_RETURN = POWER
105		// Interrupts in native mode?
106		#define INTERRUPTS_IN_NATIVE_MODE 1
107
105	–	// Enable native EMUL_OPs to be run without a mode switch
106	–	#define ENABLE_NATIVE_EMUL_OP 1
107	–
108		// Pointer to Kernel Data
109	<	static KernelData * const kernel_data = (KernelData *)KERNEL_DATA_BASE;
109	>	static KernelData * kernel_data;
110
111		// SIGSEGV handler
112	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
112	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
113	>
114	>	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
115	>	// Special trampolines for EmulOp and NativeOp
116	>	static uint8 *emul_op_trampoline;
117	>	static uint8 *native_op_trampoline;
118	>	#endif
119
120		// JIT Compiler enabled?
121		static inline bool enable_jit_p()
#	Line 133 \| Line 139 \| class sheepshaver_cpu
139		void init_decoder();
140		void execute_sheep(uint32 opcode);
141
136	–	// Filter out EMUL_OP routines that only call native code
137	–	bool filter_execute_emul_op(uint32 emul_op);
138	–
139	–	// "Native" EMUL_OP routines
140	–	void execute_emul_op_microseconds();
141	–	void execute_emul_op_idle_time_1();
142	–	void execute_emul_op_idle_time_2();
143	–
142		public:
143
144		// Constructor
#	Line 152 \| Line 150 \| public:
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		// Execute EMUL_OP routine
157		void execute_emul_op(uint32 emul_op);
158
#	Line 164 \| Line 165 \| public:
165		// Execute MacOS/PPC code
166		uint32 execute_macos_code(uint32 tvect, int nargs, uint32 const *args);
167
168	+	#if PPC_ENABLE_JIT
169		// Compile one instruction
170	<	virtual bool compile1(codegen_context_t & cg_context);
171	<
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);
175	–	void handle_interrupt();
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
181	–	// Memory allocator returning areas aligned on 16-byte boundaries
182	–	void *operator new(size_t size)
183	–	{
184	–	void *p;
185	–
186	–	#if defined(HAVE_POSIX_MEMALIGN)
187	–	if (posix_memalign(&p, 16, size) != 0)
188	–	throw std::bad_alloc();
189	–	#elif defined(HAVE_MEMALIGN)
190	–	p = memalign(16, size);
191	–	#elif defined(HAVE_VALLOC)
192	–	p = valloc(size); // page-aligned!
193	–	#else
194	–	/* XXX: handle padding ourselves */
195	–	p = malloc(size);
196	–	#endif
197	–
198	–	return p;
199	–	}
200	–
201	–	void operator delete(void *p)
202	–	{
203	–	#if defined(HAVE_MEMALIGN) \|\| defined(HAVE_VALLOC)
204	–	#if defined(__GLIBC__)
205	–	// this is known to work only with GNU libc
206	–	free(p);
207	–	#endif
208	–	#else
209	–	free(p);
210	–	#endif
211	–	}
212	–
182		sheepshaver_cpu::sheepshaver_cpu()
183		: powerpc_cpu(enable_jit_p())
184		{
#	Line 236 \| Line 205 \| void sheepshaver_cpu::init_decoder()
205		}
206		}
207
239	–	// Forward declaration for native opcode handler
240	–	static void NativeOp(int selector);
241	–
208		/* NativeOp instruction format:
209		+------------+-------------------------+--+-----------+------------+
210		\| 6 \| \|FN\| OP \| 2 \|
#	Line 250 \| Line 216 \| typedef bit_field< 19, 19 > FN_field;
216		typedef bit_field< 20, 25 > NATIVE_OP_field;
217		typedef bit_field< 26, 31 > EMUL_OP_field;
218
253	–	// "Native" EMUL_OP routines
254	–	#define GPR_A(REG) gpr(16 + (REG))
255	–	#define GPR_D(REG) gpr( 8 + (REG))
256	–
257	–	void sheepshaver_cpu::execute_emul_op_microseconds()
258	–	{
259	–	Microseconds(GPR_A(0), GPR_D(0));
260	–	}
261	–
262	–	void sheepshaver_cpu::execute_emul_op_idle_time_1()
263	–	{
264	–	// Sleep if no events pending
265	–	if (ReadMacInt32(0x14c) == 0)
266	–	Delay_usec(16667);
267	–	GPR_A(0) = ReadMacInt32(0x2b6);
268	–	}
269	–
270	–	void sheepshaver_cpu::execute_emul_op_idle_time_2()
271	–	{
272	–	// Sleep if no events pending
273	–	if (ReadMacInt32(0x14c) == 0)
274	–	Delay_usec(16667);
275	–	GPR_D(0) = (uint32)-2;
276	–	}
277	–
278	–	// Filter out EMUL_OP routines that only call native code
279	–	bool sheepshaver_cpu::filter_execute_emul_op(uint32 emul_op)
280	–	{
281	–	switch (emul_op) {
282	–	case OP_MICROSECONDS:
283	–	execute_emul_op_microseconds();
284	–	return true;
285	–	case OP_IDLE_TIME:
286	–	execute_emul_op_idle_time_1();
287	–	return true;
288	–	case OP_IDLE_TIME_2:
289	–	execute_emul_op_idle_time_2();
290	–	return true;
291	–	}
292	–	return false;
293	–	}
294	–
219		// Execute EMUL_OP routine
220		void sheepshaver_cpu::execute_emul_op(uint32 emul_op)
221		{
298	–	#if ENABLE_NATIVE_EMUL_OP
299	–	// First, filter out EMUL_OPs that can be executed without a mode switch
300	–	if (filter_execute_emul_op(emul_op))
301	–	return;
302	–	#endif
303	–
222		M68kRegisters r68;
223		WriteMacInt32(XLM_68K_R25, gpr(25));
224		WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
#	Line 309 \| Line 227 \| void sheepshaver_cpu::execute_emul_op(ui
227		for (int i = 0; i < 7; i++)
228		r68.a[i] = gpr(16 + i);
229		r68.a[7] = gpr(1);
230	<	uint32 saved_cr = get_cr() & CR_field<2>::mask();
230	>	uint32 saved_cr = get_cr() & 0xff9fffff; // mask_operand::compute(11, 8)
231		uint32 saved_xer = get_xer();
232		EmulOp(&r68, gpr(24), emul_op);
233		set_cr(saved_cr);
#	Line 338 \| Line 256 \| void sheepshaver_cpu::execute_sheep(uint
256		break;
257
258		case 2: // EXEC_NATIVE
259	<	NativeOp(NATIVE_OP_field::extract(opcode));
259	>	execute_native_op(NATIVE_OP_field::extract(opcode));
260		if (FN_field::test(opcode))
261		pc() = lr();
262		else
#	Line 353 \| Line 271 \| void sheepshaver_cpu::execute_sheep(uint
271		}
272
273		// Compile one instruction
356	–	bool sheepshaver_cpu::compile1(codegen_context_t & cg_context)
357	–	{
274		#if PPC_ENABLE_JIT
275	+	int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
276	+	{
277		const instr_info_t *ii = cg_context.instr_info;
278		if (ii->mnemo != PPC_I(SHEEP))
279	<	return false;
279	>	return COMPILE_FAILURE;
280
281	<	bool compiled = false;
281	>	int status = COMPILE_FAILURE;
282		powerpc_dyngen & dg = cg_context.codegen;
283		uint32 opcode = cg_context.opcode;
284
285		switch (opcode & 0x3f) {
286		case 0: // EMUL_RETURN
287		dg.gen_invoke(QuitEmulator);
288	<	compiled = true;
288	>	status = COMPILE_CODE_OK;
289		break;
290
291		case 1: // EXEC_RETURN
292		dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN);
293	<	compiled = true;
293	>	// Don't check for pending interrupts, we do know we have to
294	>	// get out of this block ASAP
295	>	dg.gen_exec_return();
296	>	status = COMPILE_EPILOGUE_OK;
297		break;
298
299		case 2: { // EXEC_NATIVE
300		uint32 selector = NATIVE_OP_field::extract(opcode);
301		switch (selector) {
302	+	#if !PPC_REENTRANT_JIT
303	+	// Filter out functions that may invoke Execute68k() or
304	+	// CallMacOS(), this would break reentrancy as they could
305	+	// invalidate the translation cache and even overwrite
306	+	// continuation code when we are done with them.
307		case NATIVE_PATCH_NAME_REGISTRY:
308		dg.gen_invoke(DoPatchNameRegistry);
309	<	compiled = true;
309	>	status = COMPILE_CODE_OK;
310		break;
311		case NATIVE_VIDEO_INSTALL_ACCEL:
312		dg.gen_invoke(VideoInstallAccel);
313	<	compiled = true;
313	>	status = COMPILE_CODE_OK;
314		break;
315		case NATIVE_VIDEO_VBL:
316		dg.gen_invoke(VideoVBL);
317	<	compiled = true;
317	>	status = COMPILE_CODE_OK;
318		break;
319		case NATIVE_GET_RESOURCE:
320		case NATIVE_GET_1_RESOURCE:
#	Line 406 \| Line 332 \| bool sheepshaver_cpu::compile1(codegen_c
332		typedef void (*func_t)(dyngen_cpu_base, uint32);
333		func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::get_resource).ptr();
334		dg.gen_invoke_CPU_im(func, old_get_resource);
335	<	compiled = true;
335	>	status = COMPILE_CODE_OK;
336		break;
337		}
412	–	case NATIVE_DISABLE_INTERRUPT:
413	–	dg.gen_invoke(DisableInterrupt);
414	–	compiled = true;
415	–	break;
416	–	case NATIVE_ENABLE_INTERRUPT:
417	–	dg.gen_invoke(EnableInterrupt);
418	–	compiled = true;
419	–	break;
338		case NATIVE_CHECK_LOAD_INVOC:
339		dg.gen_load_T0_GPR(3);
340		dg.gen_load_T1_GPR(4);
341		dg.gen_se_16_32_T1();
342		dg.gen_load_T2_GPR(5);
343		dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc);
344	<	compiled = true;
344	>	status = COMPILE_CODE_OK;
345		break;
346	+	#endif
347		case NATIVE_BITBLT:
348		dg.gen_load_T0_GPR(3);
349		dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
350	<	compiled = true;
350	>	status = COMPILE_CODE_OK;
351		break;
352		case NATIVE_INVRECT:
353		dg.gen_load_T0_GPR(3);
354		dg.gen_invoke_T0((void (*)(uint32))NQD_invrect);
355	<	compiled = true;
355	>	status = COMPILE_CODE_OK;
356		break;
357		case NATIVE_FILLRECT:
358		dg.gen_load_T0_GPR(3);
359		dg.gen_invoke_T0((void (*)(uint32))NQD_fillrect);
360	<	compiled = true;
360	>	status = COMPILE_CODE_OK;
361		break;
362		}
363	<	if (FN_field::test(opcode)) {
364	<	if (compiled) {
363	>	// Could we fully translate this NativeOp?
364	>	if (status == COMPILE_CODE_OK) {
365	>	if (!FN_field::test(opcode))
366	>	cg_context.done_compile = false;
367	>	else {
368		dg.gen_load_A0_LR();
369		dg.gen_set_PC_A0();
370	+	cg_context.done_compile = true;
371		}
372	<	cg_context.done_compile = true;
372	>	break;
373		}
374	<	else
374	>	#if PPC_REENTRANT_JIT
375	>	// Try to execute NativeOp trampoline
376	>	if (!FN_field::test(opcode))
377	>	dg.gen_set_PC_im(cg_context.pc + 4);
378	>	else {
379	>	dg.gen_load_A0_LR();
380	>	dg.gen_set_PC_A0();
381	>	}
382	>	dg.gen_mov_32_T0_im(selector);
383	>	dg.gen_jmp(native_op_trampoline);
384	>	cg_context.done_compile = true;
385	>	status = COMPILE_EPILOGUE_OK;
386	>	break;
387	>	#endif
388	>	// Invoke NativeOp handler
389	>	if (!FN_field::test(opcode)) {
390	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
391	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
392	>	dg.gen_invoke_CPU_im(func, selector);
393		cg_context.done_compile = false;
394	+	status = COMPILE_CODE_OK;
395	+	}
396	+	// Otherwise, let it generate a call to execute_sheep() which
397	+	// will cause necessary updates to the program counter
398		break;
399		}
400
401		default: { // EMUL_OP
402		uint32 emul_op = EMUL_OP_field::extract(opcode) - 3;
403	<	#if ENABLE_NATIVE_EMUL_OP
404	<	typedef void (*emul_op_func_t)(dyngen_cpu_base);
405	<	emul_op_func_t emul_op_func = 0;
406	<	switch (emul_op) {
407	<	case OP_MICROSECONDS:
408	<	emul_op_func = (emul_op_func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op_microseconds).ptr();
409	<	break;
410	<	case OP_IDLE_TIME:
466	<	emul_op_func = (emul_op_func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op_idle_time_1).ptr();
467	<	break;
468	<	case OP_IDLE_TIME_2:
469	<	emul_op_func = (emul_op_func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op_idle_time_2).ptr();
470	<	break;
471	<	}
472	<	if (emul_op_func) {
473	<	dg.gen_invoke_CPU(emul_op_func);
474	<	cg_context.done_compile = false;
475	<	compiled = true;
476	<	break;
477	<	}
403	>	#if PPC_REENTRANT_JIT
404	>	// Try to execute EmulOp trampoline
405	>	dg.gen_set_PC_im(cg_context.pc + 4);
406	>	dg.gen_mov_32_T0_im(emul_op);
407	>	dg.gen_jmp(emul_op_trampoline);
408	>	cg_context.done_compile = true;
409	>	status = COMPILE_EPILOGUE_OK;
410	>	break;
411		#endif
412	+	// Invoke EmulOp handler
413		typedef void (*func_t)(dyngen_cpu_base, uint32);
414		func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
415		dg.gen_invoke_CPU_im(func, emul_op);
416		cg_context.done_compile = false;
417	<	compiled = true;
417	>	status = COMPILE_CODE_OK;
418		break;
419		}
420		}
421	<	return compiled;
488	<	#endif
489	<	return false;
421	>	return status;
422		}
423	+	#endif
424
425		// Handle MacOS interrupt
426		void sheepshaver_cpu::interrupt(uint32 entry)
427		{
428		#if EMUL_TIME_STATS
429	<	interrupt_count++;
429	>	ppc_interrupt_count++;
430		const clock_t interrupt_start = clock();
431		#endif
432
500	–	#if SAFE_INTERRUPT_PPC
501	–	static int depth = 0;
502	–	if (depth != 0)
503	–	printf("FATAL: sheepshaver_cpu::interrupt() called more than once: %d\n", depth);
504	–	depth++;
505	–	#endif
506	–	#if SAFE_INTERRUPT_PPC >= 2
507	–	uint32 saved_regs[32];
508	–	memcpy(&saved_regs[0], &gpr(0), sizeof(saved_regs));
509	–	#endif
510	–
511	–	#if !MULTICORE_CPU
433		// Save program counters and branch registers
434		uint32 saved_pc = pc();
435		uint32 saved_lr = lr();
436		uint32 saved_ctr= ctr();
437		uint32 saved_sp = gpr(1);
517	–	#endif
438
439		// Initialize stack pointer to SheepShaver alternate stack base
440		gpr(1) = SignalStackBase() - 64;
#	Line 554 \| Line 474 \| void sheepshaver_cpu::interrupt(uint32 e
474		// Enter nanokernel
475		execute(entry);
476
557	–	#if !MULTICORE_CPU
477		// Restore program counters and branch registers
478		pc() = saved_pc;
479		lr() = saved_lr;
480		ctr()= saved_ctr;
481		gpr(1) = saved_sp;
563	–	#endif
482
483		#if EMUL_TIME_STATS
484		interrupt_time += (clock() - interrupt_start);
485		#endif
568	–
569	–	#if SAFE_INTERRUPT_PPC >= 2
570	–	if (memcmp(&saved_regs[0], &gpr(0), sizeof(saved_regs)) != 0)
571	–	printf("FATAL: dirty PowerPC registers\n");
572	–	#endif
573	–	#if SAFE_INTERRUPT_PPC
574	–	depth--;
575	–	#endif
486		}
487
488		// Execute 68k routine
#	Line 766 \| Line 676 \| inline void sheepshaver_cpu::get_resourc
676		* SheepShaver CPU engine interface
677		**/
678
679	<	static sheepshaver_cpu *main_cpu = NULL; // CPU emulator to handle usual control flow
680	<	static sheepshaver_cpu *interrupt_cpu = NULL; // CPU emulator to handle interrupts
771	<	static sheepshaver_cpu *current_cpu = NULL; // Current CPU emulator context
679	>	// PowerPC CPU emulator
680	>	static sheepshaver_cpu *ppc_cpu = NULL;
681
682		void FlushCodeCache(uintptr start, uintptr end)
683		{
684		D(bug("FlushCodeCache(%08x, %08x)\n", start, end));
685	<	main_cpu->invalidate_cache_range(start, end);
777	<	#if MULTICORE_CPU
778	<	interrupt_cpu->invalidate_cache_range(start, end);
779	<	#endif
780	<	}
781	<
782	<	static inline void cpu_push(sheepshaver_cpu *new_cpu)
783	<	{
784	<	#if MULTICORE_CPU
785	<	current_cpu = new_cpu;
786	<	#endif
787	<	}
788	<
789	<	static inline void cpu_pop()
790	<	{
791	<	#if MULTICORE_CPU
792	<	current_cpu = main_cpu;
793	<	#endif
685	>	ppc_cpu->invalidate_cache_range(start, end);
686		}
687
688		// Dump PPC registers
689		static void dump_registers(void)
690		{
691	<	current_cpu->dump_registers();
691	>	ppc_cpu->dump_registers();
692		}
693
694		// Dump log
695		static void dump_log(void)
696		{
697	<	current_cpu->dump_log();
697	>	ppc_cpu->dump_log();
698		}
699
700		/*
701		* Initialize CPU emulation
702		*/
703
704	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
704	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
705		{
706		#if ENABLE_VOSF
707		// Handle screen fault
#	Line 821 \| Line 713 \| static sigsegv_return_t sigsegv_handler(
713		const uintptr addr = (uintptr)fault_address;
714		#if HAVE_SIGSEGV_SKIP_INSTRUCTION
715		// Ignore writes to ROM
716	<	if ((addr - ROM_BASE) < ROM_SIZE)
716	>	if ((addr - (uintptr)ROMBaseHost) < ROM_SIZE)
717		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
718
719		// Get program counter of target CPU
720	<	sheepshaver_cpu * const cpu = current_cpu;
720	>	sheepshaver_cpu * const cpu = ppc_cpu;
721		const uint32 pc = cpu->pc();
722
723		// Fault in Mac ROM or RAM?
724	<	bool mac_fault = (pc >= ROM_BASE) && (pc < (ROM_BASE + ROM_AREA_SIZE)) \|\| (pc >= RAMBase) && (pc < (RAMBase + RAMSize));
724	>	bool mac_fault = (pc >= ROM_BASE) && (pc < (ROM_BASE + ROM_AREA_SIZE)) \|\| (pc >= RAMBase) && (pc < (RAMBase + RAMSize)) \|\| (pc >= DR_CACHE_BASE && pc < (DR_CACHE_BASE + DR_CACHE_SIZE));
725		if (mac_fault) {
726
727		// "VM settings" during MacOS 8 installation
#	Line 849 \| Line 741 \| static sigsegv_return_t sigsegv_handler(
741		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
742		else if (pc == ROM_BASE + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
743		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
744	+
745	+	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
746	+	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(16) == 0xf3012002 \|\| cpu->gpr(16) == 0xf3012000))
747	+	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
748	+	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
749	+	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
750
751		// Ignore writes to the zero page
752		else if ((uint32)(addr - SheepMem::ZeroPage()) < (uint32)SheepMem::PageSize())
#	Line 862 \| Line 760 \| static sigsegv_return_t sigsegv_handler(
760		#error "FIXME: You don't have the capability to skip instruction within signal handlers"
761		#endif
762
763	<	printf("SIGSEGV\n");
764	<	printf(" pc %p\n", fault_instruction);
765	<	printf(" ea %p\n", fault_address);
868	<	printf(" cpu %s\n", current_cpu == main_cpu ? "main" : "interrupts");
763	>	fprintf(stderr, "SIGSEGV\n");
764	>	fprintf(stderr, " pc %p\n", fault_instruction);
765	>	fprintf(stderr, " ea %p\n", fault_address);
766		dump_registers();
767	<	current_cpu->dump_log();
767	>	ppc_cpu->dump_log();
768		enter_mon();
769		QuitEmulator();
770
#	Line 876 \| Line 773 \| static sigsegv_return_t sigsegv_handler(
773
774		void init_emul_ppc(void)
775		{
776	+	// Get pointer to KernelData in host address space
777	+	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
778	+
779		// Initialize main CPU emulator
780	<	main_cpu = new sheepshaver_cpu();
781	<	main_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
782	<	main_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
780	>	ppc_cpu = new sheepshaver_cpu();
781	>	ppc_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
782	>	ppc_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
783		WriteMacInt32(XLM_RUN_MODE, MODE_68K);
784
885	–	#if MULTICORE_CPU
886	–	// Initialize alternate CPU emulator to handle interrupts
887	–	interrupt_cpu = new sheepshaver_cpu();
888	–	#endif
889	–
890	–	// Install the handler for SIGSEGV
891	–	sigsegv_install_handler(sigsegv_handler);
892	–
785		#if ENABLE_MON
786		// Install "regs" command in cxmon
787		mon_add_command("regs", dump_registers, "regs Dump PowerPC registers\n");
#	Line 915 \| Line 807 \| void exit_emul_ppc(void)
807		printf("Total emulation time : %.1f sec\n", double(emul_time) / double(CLOCKS_PER_SEC));
808		printf("Total interrupt count: %d (%2.1f Hz)\n", interrupt_count,
809		(double(interrupt_count) * CLOCKS_PER_SEC) / double(emul_time));
810	+	printf("Total ppc interrupt count: %d (%2.1f %%)\n", ppc_interrupt_count,
811	+	(double(ppc_interrupt_count) * 100.0) / double(interrupt_count));
812
813		#define PRINT_STATS(LABEL, VAR_PREFIX) do { \
814		printf("Total " LABEL " count : %d\n", VAR_PREFIX##_count); \
#	Line 931 \| Line 825 \| void exit_emul_ppc(void)
825		printf("\n");
826		#endif
827
828	<	delete main_cpu;
829	<	#if MULTICORE_CPU
936	<	delete interrupt_cpu;
937	<	#endif
828	>	delete ppc_cpu;
829	>	ppc_cpu = NULL;
830		}
831
832	+	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
833	+	// Initialize EmulOp trampolines
834	+	void init_emul_op_trampolines(basic_dyngen & dg)
835	+	{
836	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
837	+	func_t func;
838	+
839	+	// EmulOp
840	+	emul_op_trampoline = dg.gen_start();
841	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
842	+	dg.gen_invoke_CPU_T0(func);
843	+	dg.gen_exec_return();
844	+	dg.gen_end();
845	+
846	+	// NativeOp
847	+	native_op_trampoline = dg.gen_start();
848	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
849	+	dg.gen_invoke_CPU_T0(func);
850	+	dg.gen_exec_return();
851	+	dg.gen_end();
852	+
853	+	D(bug("EmulOp trampoline: %p\n", emul_op_trampoline));
854	+	D(bug("NativeOp trampoline: %p\n", native_op_trampoline));
855	+	}
856	+	#endif
857	+
858		/*
859		* Emulation loop
860		*/
861
862		void emul_ppc(uint32 entry)
863		{
946	–	current_cpu = main_cpu;
864		#if 0
865	<	current_cpu->start_log();
865	>	ppc_cpu->start_log();
866		#endif
867		// start emulation loop and enable code translation or caching
868	<	current_cpu->execute(entry);
868	>	ppc_cpu->execute(entry);
869		}
870
871		/*
872		* Handle PowerPC interrupt
873		*/
874
958	–	#if ASYNC_IRQ
959	–	void HandleInterrupt(void)
960	–	{
961	–	main_cpu->handle_interrupt();
962	–	}
963	–	#else
875		void TriggerInterrupt(void)
876		{
877	+	idle_resume();
878		#if 0
879		WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
880		#else
881		// Trigger interrupt to main cpu only
882	<	if (main_cpu)
883	<	main_cpu->trigger_interrupt();
882	>	if (ppc_cpu)
883	>	ppc_cpu->trigger_interrupt();
884		#endif
885		}
974	–	#endif
886
887	<	void sheepshaver_cpu::handle_interrupt(void)
887	>	void HandleInterrupt(powerpc_registers *r)
888		{
889	<	// Do nothing if interrupts are disabled
890	<	if ((int32 )XLM_IRQ_NEST > 0)
891	<	return;
889	>	#ifdef USE_SDL_VIDEO
890	>	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
891	>	SDL_PumpEvents();
892	>	#endif
893
894	<	// Do nothing if there is no interrupt pending
895	<	if (InterruptFlags == 0)
894	>	// Do nothing if interrupts are disabled
895	>	if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
896		return;
897
898	<	// Disable MacOS stack sniffer
899	<	WriteMacInt32(0x110, 0);
898	>	// Update interrupt count
899	>	#if EMUL_TIME_STATS
900	>	interrupt_count++;
901	>	#endif
902
903		// Interrupt action depends on current run mode
904		switch (ReadMacInt32(XLM_RUN_MODE)) {
905		case MODE_68K:
906		// 68k emulator active, trigger 68k interrupt level 1
993	–	assert(current_cpu == main_cpu);
907		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
908	<	set_cr(get_cr() \| tswap32(kernel_data->v[0x674 >> 2]));
908	>	r->cr.set(r->cr.get() \| tswap32(kernel_data->v[0x674 >> 2]));
909		break;
910
911		#if INTERRUPTS_IN_NATIVE_MODE
912		case MODE_NATIVE:
913		// 68k emulator inactive, in nanokernel?
914	<	assert(current_cpu == main_cpu);
915	<	if (gpr(1) != KernelDataAddr) {
914	>	if (r->gpr[1] != KernelDataAddr) {
915	>
916		// Prepare for 68k interrupt level 1
917		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
918		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 1008 \| Line 921 \| void sheepshaver_cpu::handle_interrupt(v
921
922		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
923		DisableInterrupt();
1011	–	cpu_push(interrupt_cpu);
924		if (ROMType == ROMTYPE_NEWWORLD)
925	<	current_cpu->interrupt(ROM_BASE + 0x312b1c);
925	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
926		else
927	<	current_cpu->interrupt(ROM_BASE + 0x312a3c);
1016	<	cpu_pop();
927	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
928		}
929		break;
930		#endif
#	Line 1022 \| Line 933 \| void sheepshaver_cpu::handle_interrupt(v
933		case MODE_EMUL_OP:
934		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
935		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
936	+	#if EMUL_TIME_STATS
937	+	const clock_t interrupt_start = clock();
938	+	#endif
939		#if 1
940		// Execute full 68k interrupt routine
941		M68kRegisters r;
942		uint32 old_r25 = ReadMacInt32(XLM_68K_R25); // Save interrupt level
943		WriteMacInt32(XLM_68K_R25, 0x21); // Execute with interrupt level 1
944	<	static const uint8 proc[] = {
944	>	static const uint8 proc_template[] = {
945		0x3f, 0x3c, 0x00, 0x00, // move.w #$0000,-(sp) (fake format word)
946		0x48, 0x7a, 0x00, 0x0a, // pea @1(pc) (return address)
947		0x40, 0xe7, // move sr,-(sp) (saved SR)
#	Line 1035 \| Line 949 \| void sheepshaver_cpu::handle_interrupt(v
949		0x4e, 0xd0, // jmp (a0)
950		M68K_RTS >> 8, M68K_RTS & 0xff // @1
951		};
952	<	Execute68k((uint32)proc, &r);
952	>	BUILD_SHEEPSHAVER_PROCEDURE(proc);
953	>	Execute68k(proc, &r);
954		WriteMacInt32(XLM_68K_R25, old_r25); // Restore interrupt level
955		#else
956		// Only update cursor
#	Line 1047 \| Line 962 \| void sheepshaver_cpu::handle_interrupt(v
962		}
963		}
964		#endif
965	+	#if EMUL_TIME_STATS
966	+	interrupt_time += (clock() - interrupt_start);
967	+	#endif
968		}
969		break;
970		#endif
#	Line 1059 \| Line 977 \| static void get_ind_resource(void);
977		static void get_1_ind_resource(void);
978		static void r_get_resource(void);
979
980	<	#define GPR(REG) current_cpu->gpr(REG)
981	<
1064	<	static void NativeOp(int selector)
980	>	// Execute NATIVE_OP routine
981	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
982		{
983		#if EMUL_TIME_STATS
984		native_exec_count++;
#	Line 1079 \| Line 996 \| static void NativeOp(int selector)
996		VideoVBL();
997		break;
998		case NATIVE_VIDEO_DO_DRIVER_IO:
999	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void )GPR(3), (void )GPR(4),
1000	<	(void *)GPR(5), GPR(6), GPR(7));
999	>	gpr(3) = (int32)(int16)VideoDoDriverIO(gpr(3), gpr(4), gpr(5), gpr(6), gpr(7));
1000	>	break;
1001	>	case NATIVE_ETHER_AO_GET_HWADDR:
1002	>	AO_get_ethernet_address(gpr(3));
1003	>	break;
1004	>	case NATIVE_ETHER_AO_ADD_MULTI:
1005	>	AO_enable_multicast(gpr(3));
1006	>	break;
1007	>	case NATIVE_ETHER_AO_DEL_MULTI:
1008	>	AO_disable_multicast(gpr(3));
1009	>	break;
1010	>	case NATIVE_ETHER_AO_SEND_PACKET:
1011	>	AO_transmit_packet(gpr(3));
1012		break;
1085	–	#ifdef WORDS_BIGENDIAN
1013		case NATIVE_ETHER_IRQ:
1014		EtherIRQ();
1015		break;
1016		case NATIVE_ETHER_INIT:
1017	<	GPR(3) = InitStreamModule((void *)GPR(3));
1017	>	gpr(3) = InitStreamModule((void *)gpr(3));
1018		break;
1019		case NATIVE_ETHER_TERM:
1020		TerminateStreamModule();
1021		break;
1022		case NATIVE_ETHER_OPEN:
1023	<	GPR(3) = ether_open((queue_t )GPR(3), (void )GPR(4), GPR(5), GPR(6), (void*)GPR(7));
1023	>	gpr(3) = ether_open((queue_t )gpr(3), (void )gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1024		break;
1025		case NATIVE_ETHER_CLOSE:
1026	<	GPR(3) = ether_close((queue_t )GPR(3), GPR(4), (void )GPR(5));
1026	>	gpr(3) = ether_close((queue_t )gpr(3), gpr(4), (void )gpr(5));
1027		break;
1028		case NATIVE_ETHER_WPUT:
1029	<	GPR(3) = ether_wput((queue_t )GPR(3), (mblk_t )GPR(4));
1029	>	gpr(3) = ether_wput((queue_t )gpr(3), (mblk_t )gpr(4));
1030		break;
1031		case NATIVE_ETHER_RSRV:
1032	<	GPR(3) = ether_rsrv((queue_t *)GPR(3));
1106	<	break;
1107	<	#else
1108	<	case NATIVE_ETHER_INIT:
1109	<	// FIXME: needs more complicated thunks
1110	<	GPR(3) = false;
1032	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1033		break;
1112	–	#endif
1034		case NATIVE_SYNC_HOOK:
1035	<	GPR(3) = NQD_sync_hook(GPR(3));
1035	>	gpr(3) = NQD_sync_hook(gpr(3));
1036		break;
1037		case NATIVE_BITBLT_HOOK:
1038	<	GPR(3) = NQD_bitblt_hook(GPR(3));
1038	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1039		break;
1040		case NATIVE_BITBLT:
1041	<	NQD_bitblt(GPR(3));
1041	>	NQD_bitblt(gpr(3));
1042		break;
1043		case NATIVE_FILLRECT_HOOK:
1044	<	GPR(3) = NQD_fillrect_hook(GPR(3));
1044	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1045		break;
1046		case NATIVE_INVRECT:
1047	<	NQD_invrect(GPR(3));
1047	>	NQD_invrect(gpr(3));
1048		break;
1049		case NATIVE_FILLRECT:
1050	<	NQD_fillrect(GPR(3));
1050	>	NQD_fillrect(gpr(3));
1051		break;
1052		case NATIVE_SERIAL_NOTHING:
1053		case NATIVE_SERIAL_OPEN:
#	Line 1145 \| Line 1066 \| static void NativeOp(int selector)
1066		SerialStatus,
1067		SerialClose
1068		};
1069	<	GPR(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](GPR(3), GPR(4));
1069	>	gpr(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](gpr(3), gpr(4));
1070		break;
1071		}
1072		case NATIVE_GET_RESOURCE:
#	Line 1155 \| Line 1076 \| static void NativeOp(int selector)
1076		case NATIVE_R_GET_RESOURCE: {
1077		typedef void (*GetResourceCallback)(void);
1078		static const GetResourceCallback get_resource_callbacks[] = {
1079	<	get_resource,
1080	<	get_1_resource,
1081	<	get_ind_resource,
1082	<	get_1_ind_resource,
1083	<	r_get_resource
1079	>	::get_resource,
1080	>	::get_1_resource,
1081	>	::get_ind_resource,
1082	>	::get_1_ind_resource,
1083	>	::r_get_resource
1084		};
1085		get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1086		break;
1087		}
1167	–	case NATIVE_DISABLE_INTERRUPT:
1168	–	DisableInterrupt();
1169	–	break;
1170	–	case NATIVE_ENABLE_INTERRUPT:
1171	–	EnableInterrupt();
1172	–	break;
1088		case NATIVE_MAKE_EXECUTABLE:
1089	<	MakeExecutable(0, (void *)GPR(4), GPR(5));
1089	>	MakeExecutable(0, gpr(4), gpr(5));
1090		break;
1091		case NATIVE_CHECK_LOAD_INVOC:
1092	<	check_load_invoc(GPR(3), GPR(4), GPR(5));
1092	>	check_load_invoc(gpr(3), gpr(4), gpr(5));
1093		break;
1094		default:
1095		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
#	Line 1195 \| Line 1110 \| static void NativeOp(int selector)
1110
1111		void Execute68k(uint32 pc, M68kRegisters *r)
1112		{
1113	<	current_cpu->execute_68k(pc, r);
1113	>	ppc_cpu->execute_68k(pc, r);
1114		}
1115
1116		/*
#	Line 1218 \| Line 1133 \| void Execute68kTrap(uint16 trap, M68kReg
1133
1134		uint32 call_macos(uint32 tvect)
1135		{
1136	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1136	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1137		}
1138
1139		uint32 call_macos1(uint32 tvect, uint32 arg1)
1140		{
1141		const uint32 args[] = { arg1 };
1142	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1142	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1143		}
1144
1145		uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1146		{
1147		const uint32 args[] = { arg1, arg2 };
1148	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1148	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1149		}
1150
1151		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1152		{
1153		const uint32 args[] = { arg1, arg2, arg3 };
1154	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1154	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1155		}
1156
1157		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1158		{
1159		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1160	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1160	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1161		}
1162
1163		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1164		{
1165		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1166	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1166	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1167		}
1168
1169		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1170		{
1171		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1172	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1172	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1173		}
1174
1175		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1176		{
1177		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1178	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1178	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1179		}
1180
1181		/*
#	Line 1269 \| Line 1184 \| uint32 call_macos7(uint32 tvect, uint32
1184
1185		void get_resource(void)
1186		{
1187	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1187	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1188		}
1189
1190		void get_1_resource(void)
1191		{
1192	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1192	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1193		}
1194
1195		void get_ind_resource(void)
1196		{
1197	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1197	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1198		}
1199
1200		void get_1_ind_resource(void)
1201		{
1202	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1202	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1203		}
1204
1205		void r_get_resource(void)
1206		{
1207	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1207	>	ppc_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1208		}

Diff Legend

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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents): Revision 1.37 by gbeauche, 2004-05-15T17:26:28Z vs. Revision 1.67 by gbeauche, 2006-01-21T17:18:53Z

Diff Legend

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.37 by gbeauche, 2004-05-15T17:26:28Z vs.
Revision 1.67 by gbeauche, 2006-01-21T17:18:53Z