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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.29 by gbeauche, 2004-02-20T17:20:15Z vs.
Revision 1.77 by asvitkine, 2012-06-16T02:16:40Z

#	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) 1997-2008 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 49 \| Line 58
58		#define DEBUG 0
59		#include "debug.h"
60
61	+	extern "C" {
62	+	#include "dis-asm.h"
63	+	}
64	+
65		// Emulation time statistics
66	<	#define EMUL_TIME_STATS 1
66	>	#ifndef EMUL_TIME_STATS
67	>	#define EMUL_TIME_STATS 0
68	>	#endif
69
70		#if EMUL_TIME_STATS
71		static clock_t emul_start_time;
72	<	static uint32 interrupt_count = 0;
72	>	static uint32 interrupt_count = 0, ppc_interrupt_count = 0;
73		static clock_t interrupt_time = 0;
74		static uint32 exec68k_count = 0;
75		static clock_t exec68k_time = 0;
#	Line 78 \| Line 93 \| extern uintptr SignalStackBase();
93
94		// From rsrc_patches.cpp
95		extern "C" void check_load_invoc(uint32 type, int16 id, uint32 h);
96	+	extern "C" void named_check_load_invoc(uint32 type, uint32 name, uint32 h);
97
98		// PowerPC EmulOp to exit from emulation looop
99		const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP \| 1;
100
85	–	// Enable multicore (main/interrupts) cpu emulation?
86	–	#define MULTICORE_CPU (ASYNC_IRQ ? 1 : 0)
87	–
101		// Enable Execute68k() safety checks?
102		#define SAFE_EXEC_68K 1
103
#	Line 98 \| Line 111 \| const uint32 POWERPC_EXEC_RETURN = POWER
111		#define INTERRUPTS_IN_NATIVE_MODE 1
112
113		// Pointer to Kernel Data
114	<	static KernelData * const kernel_data = (KernelData *)KERNEL_DATA_BASE;
114	>	static KernelData * kernel_data;
115
116		// SIGSEGV handler
117	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
117	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
118
119	<	// JIT Compiler enabled?
120	<	static inline bool enable_jit_p()
121	<	{
122	<	return PrefsFindBool("jit");
123	<	}
119	>	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
120	>	// Special trampolines for EmulOp and NativeOp
121	>	static uint8 *emul_op_trampoline;
122	>	static uint8 *native_op_trampoline;
123	>	#endif
124
125
126		/**
#	Line 136 \| Line 149 \| public:
149		uint32 get_xer() const { return xer().get(); }
150		void set_xer(uint32 v) { xer().set(v); }
151
152	+	// Execute NATIVE_OP routine
153	+	void execute_native_op(uint32 native_op);
154	+
155		// Execute EMUL_OP routine
156		void execute_emul_op(uint32 emul_op);
157
#	Line 148 \| Line 164 \| public:
164		// Execute MacOS/PPC code
165		uint32 execute_macos_code(uint32 tvect, int nargs, uint32 const *args);
166
167	+	#if PPC_ENABLE_JIT
168		// Compile one instruction
169	<	virtual bool compile1(codegen_context_t & cg_context);
170	<
169	>	virtual int compile1(codegen_context_t & cg_context);
170	>	#endif
171		// Resource manager thunk
172		void get_resource(uint32 old_get_resource);
173
174		// Handle MacOS interrupt
175		void interrupt(uint32 entry);
159	–	void handle_interrupt();
176
177		// Make sure the SIGSEGV handler can access CPU registers
178	<	friend sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
178	>	friend sigsegv_return_t sigsegv_handler(sigsegv_info_t *sip);
179		};
180
165	–	// Memory allocator returning areas aligned on 16-byte boundaries
166	–	void *operator new(size_t size)
167	–	{
168	–	void *p;
169	–
170	–	/* XXX: try different approaches */
171	–	if (posix_memalign(&p, 16, size) != 0)
172	–	throw std::bad_alloc();
173	–
174	–	return p;
175	–	}
176	–
177	–	void operator delete(void *p)
178	–	{
179	–	free(p);
180	–	}
181	–
181		sheepshaver_cpu::sheepshaver_cpu()
183	–	: powerpc_cpu(enable_jit_p())
182		{
183		init_decoder();
184	+
185	+	#if PPC_ENABLE_JIT
186	+	if (PrefsFindBool("jit"))
187	+	enable_jit();
188	+	#endif
189		}
190
191		void sheepshaver_cpu::init_decoder()
#	Line 190 \| Line 193 \| void sheepshaver_cpu::init_decoder()
193		static const instr_info_t sheep_ii_table[] = {
194		{ "sheep",
195		(execute_pmf)&sheepshaver_cpu::execute_sheep,
193	–	NULL,
196		PPC_I(SHEEP),
197		D_form, 6, 0, CFLOW_JUMP \| CFLOW_TRAP
198		}
#	Line 205 \| Line 207 \| void sheepshaver_cpu::init_decoder()
207		}
208		}
209
208	–	// Forward declaration for native opcode handler
209	–	static void NativeOp(int selector);
210	–
210		/* NativeOp instruction format:
211	<	+------------+--------------------------+--+----------+------------+
212	<	\| 6 \| \|FN\| OP \| 2 \|
213	<	+------------+--------------------------+--+----------+------------+
214	<	0 5 \|6 19 20 21 25 26 31
211	>	+------------+-------------------------+--+-----------+------------+
212	>	\| 6 \| \|FN\| OP \| 2 \|
213	>	+------------+-------------------------+--+-----------+------------+
214	>	0 5 \|6 18 19 20 25 26 31
215		*/
216
217	<	typedef bit_field< 20, 20 > FN_field;
218	<	typedef bit_field< 21, 25 > NATIVE_OP_field;
217	>	typedef bit_field< 19, 19 > FN_field;
218	>	typedef bit_field< 20, 25 > NATIVE_OP_field;
219		typedef bit_field< 26, 31 > EMUL_OP_field;
220
221		// Execute EMUL_OP routine
#	Line 230 \| Line 229 \| void sheepshaver_cpu::execute_emul_op(ui
229		for (int i = 0; i < 7; i++)
230		r68.a[i] = gpr(16 + i);
231		r68.a[7] = gpr(1);
232	<	uint32 saved_cr = get_cr() & CR_field<2>::mask();
232	>	uint32 saved_cr = get_cr() & 0xff9fffff; // mask_operand::compute(11, 8)
233		uint32 saved_xer = get_xer();
234		EmulOp(&r68, gpr(24), emul_op);
235		set_cr(saved_cr);
#	Line 259 \| Line 258 \| void sheepshaver_cpu::execute_sheep(uint
258		break;
259
260		case 2: // EXEC_NATIVE
261	<	NativeOp(NATIVE_OP_field::extract(opcode));
261	>	execute_native_op(NATIVE_OP_field::extract(opcode));
262		if (FN_field::test(opcode))
263		pc() = lr();
264		else
#	Line 274 \| Line 273 \| void sheepshaver_cpu::execute_sheep(uint
273		}
274
275		// Compile one instruction
277	–	bool sheepshaver_cpu::compile1(codegen_context_t & cg_context)
278	–	{
276		#if PPC_ENABLE_JIT
277	+	int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
278	+	{
279		const instr_info_t *ii = cg_context.instr_info;
280		if (ii->mnemo != PPC_I(SHEEP))
281	<	return false;
281	>	return COMPILE_FAILURE;
282
283	<	bool compiled = false;
283	>	int status = COMPILE_FAILURE;
284		powerpc_dyngen & dg = cg_context.codegen;
285		uint32 opcode = cg_context.opcode;
286
287		switch (opcode & 0x3f) {
288		case 0: // EMUL_RETURN
289		dg.gen_invoke(QuitEmulator);
290	<	compiled = true;
290	>	status = COMPILE_CODE_OK;
291		break;
292
293		case 1: // EXEC_RETURN
294		dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN);
295	<	compiled = true;
295	>	// Don't check for pending interrupts, we do know we have to
296	>	// get out of this block ASAP
297	>	dg.gen_exec_return();
298	>	status = COMPILE_EPILOGUE_OK;
299		break;
300
301		case 2: { // EXEC_NATIVE
302		uint32 selector = NATIVE_OP_field::extract(opcode);
303		switch (selector) {
304	+	#if !PPC_REENTRANT_JIT
305	+	// Filter out functions that may invoke Execute68k() or
306	+	// CallMacOS(), this would break reentrancy as they could
307	+	// invalidate the translation cache and even overwrite
308	+	// continuation code when we are done with them.
309		case NATIVE_PATCH_NAME_REGISTRY:
310		dg.gen_invoke(DoPatchNameRegistry);
311	<	compiled = true;
311	>	status = COMPILE_CODE_OK;
312		break;
313		case NATIVE_VIDEO_INSTALL_ACCEL:
314		dg.gen_invoke(VideoInstallAccel);
315	<	compiled = true;
315	>	status = COMPILE_CODE_OK;
316		break;
317		case NATIVE_VIDEO_VBL:
318		dg.gen_invoke(VideoVBL);
319	<	compiled = true;
319	>	status = COMPILE_CODE_OK;
320		break;
321		case NATIVE_GET_RESOURCE:
322		case NATIVE_GET_1_RESOURCE:
#	Line 327 \| Line 334 \| bool sheepshaver_cpu::compile1(codegen_c
334		typedef void (*func_t)(dyngen_cpu_base, uint32);
335		func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::get_resource).ptr();
336		dg.gen_invoke_CPU_im(func, old_get_resource);
337	<	compiled = true;
337	>	status = COMPILE_CODE_OK;
338		break;
339		}
340	<	case NATIVE_DISABLE_INTERRUPT:
334	<	dg.gen_invoke(DisableInterrupt);
335	<	compiled = true;
336	<	break;
337	<	case NATIVE_ENABLE_INTERRUPT:
338	<	dg.gen_invoke(EnableInterrupt);
339	<	compiled = true;
340	<	break;
340	>	#endif
341		case NATIVE_CHECK_LOAD_INVOC:
342		dg.gen_load_T0_GPR(3);
343		dg.gen_load_T1_GPR(4);
344		dg.gen_se_16_32_T1();
345		dg.gen_load_T2_GPR(5);
346		dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc);
347	<	compiled = true;
347	>	status = COMPILE_CODE_OK;
348	>	break;
349	>	case NATIVE_NAMED_CHECK_LOAD_INVOC:
350	>	dg.gen_load_T0_GPR(3);
351	>	dg.gen_load_T1_GPR(4);
352	>	dg.gen_load_T2_GPR(5);
353	>	dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))named_check_load_invoc);
354	>	status = COMPILE_CODE_OK;
355	>	break;
356	>	case NATIVE_NQD_SYNC_HOOK:
357	>	dg.gen_load_T0_GPR(3);
358	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_sync_hook);
359	>	dg.gen_store_T0_GPR(3);
360	>	status = COMPILE_CODE_OK;
361	>	break;
362	>	case NATIVE_NQD_BITBLT_HOOK:
363	>	dg.gen_load_T0_GPR(3);
364	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_bitblt_hook);
365	>	dg.gen_store_T0_GPR(3);
366	>	status = COMPILE_CODE_OK;
367	>	break;
368	>	case NATIVE_NQD_FILLRECT_HOOK:
369	>	dg.gen_load_T0_GPR(3);
370	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_fillrect_hook);
371	>	dg.gen_store_T0_GPR(3);
372	>	status = COMPILE_CODE_OK;
373	>	break;
374	>	case NATIVE_NQD_UNKNOWN_HOOK:
375	>	dg.gen_load_T0_GPR(3);
376	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_unknown_hook);
377	>	dg.gen_store_T0_GPR(3);
378	>	status = COMPILE_CODE_OK;
379	>	break;
380	>	case NATIVE_NQD_BITBLT:
381	>	dg.gen_load_T0_GPR(3);
382	>	dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
383	>	status = COMPILE_CODE_OK;
384	>	break;
385	>	case NATIVE_NQD_INVRECT:
386	>	dg.gen_load_T0_GPR(3);
387	>	dg.gen_invoke_T0((void (*)(uint32))NQD_invrect);
388	>	status = COMPILE_CODE_OK;
389	>	break;
390	>	case NATIVE_NQD_FILLRECT:
391	>	dg.gen_load_T0_GPR(3);
392	>	dg.gen_invoke_T0((void (*)(uint32))NQD_fillrect);
393	>	status = COMPILE_CODE_OK;
394		break;
395		}
396	<	if (FN_field::test(opcode)) {
397	<	if (compiled) {
398	<	dg.gen_load_A0_LR();
399	<	dg.gen_set_PC_A0();
396	>	// Could we fully translate this NativeOp?
397	>	if (status == COMPILE_CODE_OK) {
398	>	if (!FN_field::test(opcode))
399	>	cg_context.done_compile = false;
400	>	else {
401	>	dg.gen_load_T0_LR_aligned();
402	>	dg.gen_set_PC_T0();
403	>	cg_context.done_compile = true;
404		}
405	<	cg_context.done_compile = true;
405	>	break;
406		}
407	<	else
407	>	#if PPC_REENTRANT_JIT
408	>	// Try to execute NativeOp trampoline
409	>	if (!FN_field::test(opcode))
410	>	dg.gen_set_PC_im(cg_context.pc + 4);
411	>	else {
412	>	dg.gen_load_T0_LR_aligned();
413	>	dg.gen_set_PC_T0();
414	>	}
415	>	dg.gen_mov_32_T0_im(selector);
416	>	dg.gen_jmp(native_op_trampoline);
417	>	cg_context.done_compile = true;
418	>	status = COMPILE_EPILOGUE_OK;
419	>	break;
420	>	#endif
421	>	// Invoke NativeOp handler
422	>	if (!FN_field::test(opcode)) {
423	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
424	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
425	>	dg.gen_invoke_CPU_im(func, selector);
426		cg_context.done_compile = false;
427	+	status = COMPILE_CODE_OK;
428	+	}
429	+	// Otherwise, let it generate a call to execute_sheep() which
430	+	// will cause necessary updates to the program counter
431		break;
432		}
433
434		default: { // EMUL_OP
435	+	uint32 emul_op = EMUL_OP_field::extract(opcode) - 3;
436	+	#if PPC_REENTRANT_JIT
437	+	// Try to execute EmulOp trampoline
438	+	dg.gen_set_PC_im(cg_context.pc + 4);
439	+	dg.gen_mov_32_T0_im(emul_op);
440	+	dg.gen_jmp(emul_op_trampoline);
441	+	cg_context.done_compile = true;
442	+	status = COMPILE_EPILOGUE_OK;
443	+	break;
444	+	#endif
445	+	// Invoke EmulOp handler
446		typedef void (*func_t)(dyngen_cpu_base, uint32);
447		func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
448	<	dg.gen_invoke_CPU_im(func, EMUL_OP_field::extract(opcode) - 3);
448	>	dg.gen_invoke_CPU_im(func, emul_op);
449		cg_context.done_compile = false;
450	<	compiled = true;
450	>	status = COMPILE_CODE_OK;
451		break;
452		}
453		}
454	<	return compiled;
372	<	#endif
373	<	return false;
454	>	return status;
455		}
456	+	#endif
457
458		// Handle MacOS interrupt
459		void sheepshaver_cpu::interrupt(uint32 entry)
460		{
461		#if EMUL_TIME_STATS
462	<	interrupt_count++;
462	>	ppc_interrupt_count++;
463		const clock_t interrupt_start = clock();
464		#endif
465
384	–	#if !MULTICORE_CPU
466		// Save program counters and branch registers
467		uint32 saved_pc = pc();
468		uint32 saved_lr = lr();
469		uint32 saved_ctr= ctr();
470		uint32 saved_sp = gpr(1);
390	–	#endif
471
472		// Initialize stack pointer to SheepShaver alternate stack base
473		gpr(1) = SignalStackBase() - 64;
#	Line 427 \| Line 507 \| void sheepshaver_cpu::interrupt(uint32 e
507		// Enter nanokernel
508		execute(entry);
509
430	–	#if !MULTICORE_CPU
510		// Restore program counters and branch registers
511		pc() = saved_pc;
512		lr() = saved_lr;
513		ctr()= saved_ctr;
514		gpr(1) = saved_sp;
436	–	#endif
515
516		#if EMUL_TIME_STATS
517		interrupt_time += (clock() - interrupt_start);
#	Line 631 \| Line 709 \| inline void sheepshaver_cpu::get_resourc
709		* SheepShaver CPU engine interface
710		**/
711
712	<	static sheepshaver_cpu *main_cpu = NULL; // CPU emulator to handle usual control flow
713	<	static sheepshaver_cpu *interrupt_cpu = NULL; // CPU emulator to handle interrupts
636	<	static sheepshaver_cpu *current_cpu = NULL; // Current CPU emulator context
712	>	// PowerPC CPU emulator
713	>	static sheepshaver_cpu *ppc_cpu = NULL;
714
715		void FlushCodeCache(uintptr start, uintptr end)
716		{
717		D(bug("FlushCodeCache(%08x, %08x)\n", start, end));
718	<	main_cpu->invalidate_cache_range(start, end);
642	<	#if MULTICORE_CPU
643	<	interrupt_cpu->invalidate_cache_range(start, end);
644	<	#endif
718	>	ppc_cpu->invalidate_cache_range(start, end);
719		}
720
721	<	static inline void cpu_push(sheepshaver_cpu *new_cpu)
721	>	// Dump PPC registers
722	>	static void dump_registers(void)
723		{
724	<	#if MULTICORE_CPU
650	<	current_cpu = new_cpu;
651	<	#endif
724	>	ppc_cpu->dump_registers();
725		}
726
727	<	static inline void cpu_pop()
727	>	// Dump log
728	>	static void dump_log(void)
729		{
730	<	#if MULTICORE_CPU
657	<	current_cpu = main_cpu;
658	<	#endif
730	>	ppc_cpu->dump_log();
731		}
732
733	<	// Dump PPC registers
662	<	static void dump_registers(void)
733	>	static int read_mem(bfd_vma memaddr, bfd_byte myaddr, int length, struct disassemble_info info)
734		{
735	<	current_cpu->dump_registers();
735	>	Mac2Host_memcpy(myaddr, memaddr, length);
736	>	return 0;
737		}
738
739	<	// Dump log
668	<	static void dump_log(void)
739	>	static void dump_disassembly(const uint32 pc, const int prefix_count, const int suffix_count)
740		{
741	<	current_cpu->dump_log();
742	<	}
741	>	struct disassemble_info info;
742	>	INIT_DISASSEMBLE_INFO(info, stderr, fprintf);
743	>	info.read_memory_func = read_mem;
744
745	<	/*
746	<	* Initialize CPU emulation
747	<	*/
745	>	const int count = prefix_count + suffix_count + 1;
746	>	const uint32 base_addr = pc - prefix_count * 4;
747	>	for (int i = 0; i < count; i++) {
748	>	const bfd_vma addr = base_addr + i * 4;
749	>	fprintf(stderr, "%s0x%8llx: ", addr == pc ? " >" : " ", addr);
750	>	print_insn_ppc(addr, &info);
751	>	fprintf(stderr, "\n");
752	>	}
753	>	}
754
755	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
755	>	sigsegv_return_t sigsegv_handler(sigsegv_info_t *sip)
756		{
757		#if ENABLE_VOSF
758		// Handle screen fault
759	<	extern bool Screen_fault_handler(sigsegv_address_t, sigsegv_address_t);
760	<	if (Screen_fault_handler(fault_address, fault_instruction))
759	>	extern bool Screen_fault_handler(sigsegv_info_t *sip);
760	>	if (Screen_fault_handler(sip))
761		return SIGSEGV_RETURN_SUCCESS;
762		#endif
763
764	<	const uintptr addr = (uintptr)fault_address;
764	>	const uintptr addr = (uintptr)sigsegv_get_fault_address(sip);
765		#if HAVE_SIGSEGV_SKIP_INSTRUCTION
766		// Ignore writes to ROM
767	<	if ((addr - ROM_BASE) < ROM_SIZE)
767	>	if ((addr - (uintptr)ROMBaseHost) < ROM_SIZE)
768		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
769
770		// Get program counter of target CPU
771	<	sheepshaver_cpu * const cpu = current_cpu;
771	>	sheepshaver_cpu * const cpu = ppc_cpu;
772		const uint32 pc = cpu->pc();
773
774		// Fault in Mac ROM or RAM?
775	<	bool mac_fault = (pc >= ROM_BASE) && (pc < (ROM_BASE + ROM_AREA_SIZE)) \|\| (pc >= RAMBase) && (pc < (RAMBase + RAMSize));
775	>	bool mac_fault = (pc >= ROMBase) && (pc < (ROMBase + ROM_AREA_SIZE)) \|\| (pc >= RAMBase) && (pc < (RAMBase + RAMSize)) \|\| (pc >= DR_CACHE_BASE && pc < (DR_CACHE_BASE + DR_CACHE_SIZE));
776		if (mac_fault) {
777
778		// "VM settings" during MacOS 8 installation
779	<	if (pc == ROM_BASE + 0x488160 && cpu->gpr(20) == 0xf8000000)
779	>	if (pc == ROMBase + 0x488160 && cpu->gpr(20) == 0xf8000000)
780		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
781
782		// MacOS 8.5 installation
783	<	else if (pc == ROM_BASE + 0x488140 && cpu->gpr(16) == 0xf8000000)
783	>	else if (pc == ROMBase + 0x488140 && cpu->gpr(16) == 0xf8000000)
784		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
785
786		// MacOS 8 serial drivers on startup
787	<	else if (pc == ROM_BASE + 0x48e080 && (cpu->gpr(8) == 0xf3012002 \|\| cpu->gpr(8) == 0xf3012000))
787	>	else if (pc == ROMBase + 0x48e080 && (cpu->gpr(8) == 0xf3012002 \|\| cpu->gpr(8) == 0xf3012000))
788		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
789
790		// MacOS 8.1 serial drivers on startup
791	<	else if (pc == ROM_BASE + 0x48c5e0 && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
791	>	else if (pc == ROMBase + 0x48c5e0 && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
792	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
793	>	else if (pc == ROMBase + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
794	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
795	>
796	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
797	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(16) == 0xf3012002 \|\| cpu->gpr(16) == 0xf3012000))
798		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
799	<	else if (pc == ROM_BASE + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
799	>	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(20) == 0xf3012002 \|\| cpu->gpr(20) == 0xf3012000))
800	>	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
801	>
802	>	// Ignore writes to the zero page
803	>	else if ((uint32)(addr - SheepMem::ZeroPage()) < (uint32)SheepMem::PageSize())
804		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
805
806		// Ignore all other faults, if requested
#	Line 723 \| Line 811 \| static sigsegv_return_t sigsegv_handler(
811		#error "FIXME: You don't have the capability to skip instruction within signal handlers"
812		#endif
813
814	<	printf("SIGSEGV\n");
815	<	printf(" pc %p\n", fault_instruction);
816	<	printf(" ea %p\n", fault_address);
729	<	printf(" cpu %s\n", current_cpu == main_cpu ? "main" : "interrupts");
814	>	fprintf(stderr, "SIGSEGV\n");
815	>	fprintf(stderr, " pc %p\n", sigsegv_get_fault_instruction_address(sip));
816	>	fprintf(stderr, " ea %p\n", sigsegv_get_fault_address(sip));
817		dump_registers();
818	<	current_cpu->dump_log();
818	>	ppc_cpu->dump_log();
819	>	dump_disassembly(pc, 8, 8);
820	>
821		enter_mon();
822		QuitEmulator();
823
824		return SIGSEGV_RETURN_FAILURE;
825		}
826
827	+	/*
828	+	* Initialize CPU emulation
829	+	*/
830	+
831		void init_emul_ppc(void)
832		{
833	+	// Get pointer to KernelData in host address space
834	+	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
835	+
836		// Initialize main CPU emulator
837	<	main_cpu = new sheepshaver_cpu();
838	<	main_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
839	<	main_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
837	>	ppc_cpu = new sheepshaver_cpu();
838	>	ppc_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROMBase + 0x30d000));
839	>	ppc_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
840		WriteMacInt32(XLM_RUN_MODE, MODE_68K);
841
746	–	#if MULTICORE_CPU
747	–	// Initialize alternate CPU emulator to handle interrupts
748	–	interrupt_cpu = new sheepshaver_cpu();
749	–	#endif
750	–
751	–	// Install the handler for SIGSEGV
752	–	sigsegv_install_handler(sigsegv_handler);
753	–
842		#if ENABLE_MON
843		// Install "regs" command in cxmon
844		mon_add_command("regs", dump_registers, "regs Dump PowerPC registers\n");
#	Line 776 \| Line 864 \| void exit_emul_ppc(void)
864		printf("Total emulation time : %.1f sec\n", double(emul_time) / double(CLOCKS_PER_SEC));
865		printf("Total interrupt count: %d (%2.1f Hz)\n", interrupt_count,
866		(double(interrupt_count) * CLOCKS_PER_SEC) / double(emul_time));
867	+	printf("Total ppc interrupt count: %d (%2.1f %%)\n", ppc_interrupt_count,
868	+	(double(ppc_interrupt_count) * 100.0) / double(interrupt_count));
869
870		#define PRINT_STATS(LABEL, VAR_PREFIX) do { \
871		printf("Total " LABEL " count : %d\n", VAR_PREFIX##_count); \
#	Line 792 \| Line 882 \| void exit_emul_ppc(void)
882		printf("\n");
883		#endif
884
885	<	delete main_cpu;
886	<	#if MULTICORE_CPU
797	<	delete interrupt_cpu;
798	<	#endif
885	>	delete ppc_cpu;
886	>	ppc_cpu = NULL;
887		}
888
889	+	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
890	+	// Initialize EmulOp trampolines
891	+	void init_emul_op_trampolines(basic_dyngen & dg)
892	+	{
893	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
894	+	func_t func;
895	+
896	+	// EmulOp
897	+	emul_op_trampoline = dg.gen_start();
898	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
899	+	dg.gen_invoke_CPU_T0(func);
900	+	dg.gen_exec_return();
901	+	dg.gen_end();
902	+
903	+	// NativeOp
904	+	native_op_trampoline = dg.gen_start();
905	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
906	+	dg.gen_invoke_CPU_T0(func);
907	+	dg.gen_exec_return();
908	+	dg.gen_end();
909	+
910	+	D(bug("EmulOp trampoline: %p\n", emul_op_trampoline));
911	+	D(bug("NativeOp trampoline: %p\n", native_op_trampoline));
912	+	}
913	+	#endif
914	+
915		/*
916		* Emulation loop
917		*/
918
919		void emul_ppc(uint32 entry)
920		{
807	–	current_cpu = main_cpu;
921		#if 0
922	<	current_cpu->start_log();
922	>	ppc_cpu->start_log();
923		#endif
924		// start emulation loop and enable code translation or caching
925	<	current_cpu->execute(entry);
925	>	ppc_cpu->execute(entry);
926		}
927
928		/*
929		* Handle PowerPC interrupt
930		*/
931
819	–	#if ASYNC_IRQ
820	–	void HandleInterrupt(void)
821	–	{
822	–	main_cpu->handle_interrupt();
823	–	}
824	–	#else
932		void TriggerInterrupt(void)
933		{
934	+	idle_resume();
935		#if 0
936		WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
937		#else
938		// Trigger interrupt to main cpu only
939	<	if (main_cpu)
940	<	main_cpu->trigger_interrupt();
939	>	if (ppc_cpu)
940	>	ppc_cpu->trigger_interrupt();
941		#endif
942		}
835	–	#endif
943
944	<	void sheepshaver_cpu::handle_interrupt(void)
944	>	void HandleInterrupt(powerpc_registers *r)
945		{
946	<	// Do nothing if interrupts are disabled
947	<	if ((int32 )XLM_IRQ_NEST > 0)
948	<	return;
946	>	#ifdef USE_SDL_VIDEO
947	>	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
948	>	SDL_PumpEvents();
949	>	#endif
950
951	<	// Do nothing if there is no interrupt pending
952	<	if (InterruptFlags == 0)
951	>	// Do nothing if interrupts are disabled
952	>	if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
953		return;
954
955	<	// Disable MacOS stack sniffer
956	<	WriteMacInt32(0x110, 0);
955	>	// Update interrupt count
956	>	#if EMUL_TIME_STATS
957	>	interrupt_count++;
958	>	#endif
959
960		// Interrupt action depends on current run mode
961		switch (ReadMacInt32(XLM_RUN_MODE)) {
962		case MODE_68K:
963		// 68k emulator active, trigger 68k interrupt level 1
854	–	assert(current_cpu == main_cpu);
964		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
965	<	set_cr(get_cr() \| tswap32(kernel_data->v[0x674 >> 2]));
965	>	r->cr.set(r->cr.get() \| tswap32(kernel_data->v[0x674 >> 2]));
966		break;
967
968		#if INTERRUPTS_IN_NATIVE_MODE
969		case MODE_NATIVE:
970		// 68k emulator inactive, in nanokernel?
971	<	assert(current_cpu == main_cpu);
972	<	if (gpr(1) != KernelDataAddr) {
971	>	if (r->gpr[1] != KernelDataAddr) {
972	>
973		// Prepare for 68k interrupt level 1
974		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
975		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 869 \| Line 978 \| void sheepshaver_cpu::handle_interrupt(v
978
979		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
980		DisableInterrupt();
872	–	cpu_push(interrupt_cpu);
981		if (ROMType == ROMTYPE_NEWWORLD)
982	<	current_cpu->interrupt(ROM_BASE + 0x312b1c);
982	>	ppc_cpu->interrupt(ROMBase + 0x312b1c);
983		else
984	<	current_cpu->interrupt(ROM_BASE + 0x312a3c);
877	<	cpu_pop();
984	>	ppc_cpu->interrupt(ROMBase + 0x312a3c);
985		}
986		break;
987		#endif
#	Line 883 \| Line 990 \| void sheepshaver_cpu::handle_interrupt(v
990		case MODE_EMUL_OP:
991		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
992		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
993	+	#if EMUL_TIME_STATS
994	+	const clock_t interrupt_start = clock();
995	+	#endif
996		#if 1
997		// Execute full 68k interrupt routine
998		M68kRegisters r;
999		uint32 old_r25 = ReadMacInt32(XLM_68K_R25); // Save interrupt level
1000		WriteMacInt32(XLM_68K_R25, 0x21); // Execute with interrupt level 1
1001	<	static const uint8 proc[] = {
1001	>	static const uint8 proc_template[] = {
1002		0x3f, 0x3c, 0x00, 0x00, // move.w #$0000,-(sp) (fake format word)
1003		0x48, 0x7a, 0x00, 0x0a, // pea @1(pc) (return address)
1004		0x40, 0xe7, // move sr,-(sp) (saved SR)
#	Line 896 \| Line 1006 \| void sheepshaver_cpu::handle_interrupt(v
1006		0x4e, 0xd0, // jmp (a0)
1007		M68K_RTS >> 8, M68K_RTS & 0xff // @1
1008		};
1009	<	Execute68k((uint32)proc, &r);
1009	>	BUILD_SHEEPSHAVER_PROCEDURE(proc);
1010	>	Execute68k(proc, &r);
1011		WriteMacInt32(XLM_68K_R25, old_r25); // Restore interrupt level
1012		#else
1013		// Only update cursor
#	Line 908 \| Line 1019 \| void sheepshaver_cpu::handle_interrupt(v
1019		}
1020		}
1021		#endif
1022	+	#if EMUL_TIME_STATS
1023	+	interrupt_time += (clock() - interrupt_start);
1024	+	#endif
1025		}
1026		break;
1027		#endif
1028		}
1029		}
1030
1031	<	static void get_resource(void);
1032	<	static void get_1_resource(void);
919	<	static void get_ind_resource(void);
920	<	static void get_1_ind_resource(void);
921	<	static void r_get_resource(void);
922	<
923	<	#define GPR(REG) current_cpu->gpr(REG)
924	<
925	<	static void NativeOp(int selector)
1031	>	// Execute NATIVE_OP routine
1032	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
1033		{
1034		#if EMUL_TIME_STATS
1035		native_exec_count++;
#	Line 940 \| Line 1047 \| static void NativeOp(int selector)
1047		VideoVBL();
1048		break;
1049		case NATIVE_VIDEO_DO_DRIVER_IO:
1050	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void )GPR(3), (void )GPR(4),
1051	<	(void *)GPR(5), GPR(6), GPR(7));
1050	>	gpr(3) = (int32)(int16)VideoDoDriverIO(gpr(3), gpr(4), gpr(5), gpr(6), gpr(7));
1051	>	break;
1052	>	case NATIVE_ETHER_AO_GET_HWADDR:
1053	>	AO_get_ethernet_address(gpr(3));
1054	>	break;
1055	>	case NATIVE_ETHER_AO_ADD_MULTI:
1056	>	AO_enable_multicast(gpr(3));
1057	>	break;
1058	>	case NATIVE_ETHER_AO_DEL_MULTI:
1059	>	AO_disable_multicast(gpr(3));
1060	>	break;
1061	>	case NATIVE_ETHER_AO_SEND_PACKET:
1062	>	AO_transmit_packet(gpr(3));
1063		break;
946	–	#ifdef WORDS_BIGENDIAN
1064		case NATIVE_ETHER_IRQ:
1065		EtherIRQ();
1066		break;
1067		case NATIVE_ETHER_INIT:
1068	<	GPR(3) = InitStreamModule((void *)GPR(3));
1068	>	gpr(3) = InitStreamModule((void *)gpr(3));
1069		break;
1070		case NATIVE_ETHER_TERM:
1071		TerminateStreamModule();
1072		break;
1073		case NATIVE_ETHER_OPEN:
1074	<	GPR(3) = ether_open((queue_t )GPR(3), (void )GPR(4), GPR(5), GPR(6), (void*)GPR(7));
1074	>	gpr(3) = ether_open((queue_t )gpr(3), (void )gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1075		break;
1076		case NATIVE_ETHER_CLOSE:
1077	<	GPR(3) = ether_close((queue_t )GPR(3), GPR(4), (void )GPR(5));
1077	>	gpr(3) = ether_close((queue_t )gpr(3), gpr(4), (void )gpr(5));
1078		break;
1079		case NATIVE_ETHER_WPUT:
1080	<	GPR(3) = ether_wput((queue_t )GPR(3), (mblk_t )GPR(4));
1080	>	gpr(3) = ether_wput((queue_t )gpr(3), (mblk_t )gpr(4));
1081		break;
1082		case NATIVE_ETHER_RSRV:
1083	<	GPR(3) = ether_rsrv((queue_t *)GPR(3));
1083	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1084		break;
1085	<	#else
1086	<	case NATIVE_ETHER_INIT:
1087	<	// FIXME: needs more complicated thunks
1088	<	GPR(3) = false;
1085	>	case NATIVE_NQD_SYNC_HOOK:
1086	>	gpr(3) = NQD_sync_hook(gpr(3));
1087	>	break;
1088	>	case NATIVE_NQD_UNKNOWN_HOOK:
1089	>	gpr(3) = NQD_unknown_hook(gpr(3));
1090	>	break;
1091	>	case NATIVE_NQD_BITBLT_HOOK:
1092	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1093	>	break;
1094	>	case NATIVE_NQD_BITBLT:
1095	>	NQD_bitblt(gpr(3));
1096	>	break;
1097	>	case NATIVE_NQD_FILLRECT_HOOK:
1098	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1099	>	break;
1100	>	case NATIVE_NQD_INVRECT:
1101	>	NQD_invrect(gpr(3));
1102	>	break;
1103	>	case NATIVE_NQD_FILLRECT:
1104	>	NQD_fillrect(gpr(3));
1105		break;
973	–	#endif
1106		case NATIVE_SERIAL_NOTHING:
1107		case NATIVE_SERIAL_OPEN:
1108		case NATIVE_SERIAL_PRIME_IN:
#	Line 988 \| Line 1120 \| static void NativeOp(int selector)
1120		SerialStatus,
1121		SerialClose
1122		};
1123	<	GPR(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](GPR(3), GPR(4));
1123	>	gpr(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](gpr(3), gpr(4));
1124		break;
1125		}
1126		case NATIVE_GET_RESOURCE:
1127	+	get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1128	+	break;
1129		case NATIVE_GET_1_RESOURCE:
1130	+	get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1131	+	break;
1132		case NATIVE_GET_IND_RESOURCE:
1133	<	case NATIVE_GET_1_IND_RESOURCE:
998	<	case NATIVE_R_GET_RESOURCE: {
999	<	typedef void (*GetResourceCallback)(void);
1000	<	static const GetResourceCallback get_resource_callbacks[] = {
1001	<	get_resource,
1002	<	get_1_resource,
1003	<	get_ind_resource,
1004	<	get_1_ind_resource,
1005	<	r_get_resource
1006	<	};
1007	<	get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1133	>	get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1134		break;
1135	<	}
1136	<	case NATIVE_DISABLE_INTERRUPT:
1011	<	DisableInterrupt();
1135	>	case NATIVE_GET_1_IND_RESOURCE:
1136	>	get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1137		break;
1138	<	case NATIVE_ENABLE_INTERRUPT:
1139	<	EnableInterrupt();
1138	>	case NATIVE_R_GET_RESOURCE:
1139	>	get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1140		break;
1141		case NATIVE_MAKE_EXECUTABLE:
1142	<	MakeExecutable(0, (void *)GPR(4), GPR(5));
1142	>	MakeExecutable(0, gpr(4), gpr(5));
1143		break;
1144		case NATIVE_CHECK_LOAD_INVOC:
1145	<	check_load_invoc(GPR(3), GPR(4), GPR(5));
1145	>	check_load_invoc(gpr(3), gpr(4), gpr(5));
1146	>	break;
1147	>	case NATIVE_NAMED_CHECK_LOAD_INVOC:
1148	>	named_check_load_invoc(gpr(3), gpr(4), gpr(5));
1149		break;
1150		default:
1151		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
#	Line 1038 \| Line 1166 \| static void NativeOp(int selector)
1166
1167		void Execute68k(uint32 pc, M68kRegisters *r)
1168		{
1169	<	current_cpu->execute_68k(pc, r);
1169	>	ppc_cpu->execute_68k(pc, r);
1170		}
1171
1172		/*
#	Line 1061 \| Line 1189 \| void Execute68kTrap(uint16 trap, M68kReg
1189
1190		uint32 call_macos(uint32 tvect)
1191		{
1192	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1192	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1193		}
1194
1195		uint32 call_macos1(uint32 tvect, uint32 arg1)
1196		{
1197		const uint32 args[] = { arg1 };
1198	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1198	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1199		}
1200
1201		uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1202		{
1203		const uint32 args[] = { arg1, arg2 };
1204	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1204	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1205		}
1206
1207		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1208		{
1209		const uint32 args[] = { arg1, arg2, arg3 };
1210	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1210	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1211		}
1212
1213		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1214		{
1215		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1216	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1216	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1217		}
1218
1219		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1220		{
1221		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1222	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1222	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1223		}
1224
1225		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1226		{
1227		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1228	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1228	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1229		}
1230
1231		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1232		{
1233		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1234	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1107	<	}
1108	<
1109	<	/*
1110	<	* Resource Manager thunks
1111	<	*/
1112	<
1113	<	void get_resource(void)
1114	<	{
1115	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1116	<	}
1117	<
1118	<	void get_1_resource(void)
1119	<	{
1120	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1121	<	}
1122	<
1123	<	void get_ind_resource(void)
1124	<	{
1125	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1126	<	}
1127	<
1128	<	void get_1_ind_resource(void)
1129	<	{
1130	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1131	<	}
1132	<
1133	<	void r_get_resource(void)
1134	<	{
1135	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1234	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1235		}

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+Removed lines
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Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents): Revision 1.29 by gbeauche, 2004-02-20T17:20:15Z vs. Revision 1.77 by asvitkine, 2012-06-16T02:16:40Z

Diff Legend

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.29 by gbeauche, 2004-02-20T17:20:15Z vs.
Revision 1.77 by asvitkine, 2012-06-16T02:16:40Z