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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.39 by gbeauche, 2004-05-20T11:05:30Z vs.
Revision 1.48 by gbeauche, 2004-06-26T15:26:18Z

#	Line 43 | Line 43
43		#include <stdio.h>
44		#include <stdlib.h>
45
46	+	#ifdef USE_SDL_VIDEO
47	+	#include <SDL_events.h>
48	+	#endif
49	+
50		#if ENABLE_MON
51		#include "mon.h"
52		#include "mon_disass.h"
#	Line 52 | Line 56
56		#include "debug.h"
57
58		// Emulation time statistics
59	<	#define EMUL_TIME_STATS 1
59	>	#ifndef EMUL_TIME_STATS
60	>	#define EMUL_TIME_STATS 0
61	>	#endif
62
63		#if EMUL_TIME_STATS
64		static clock_t emul_start_time;
65	<	static uint32 interrupt_count = 0;
65	>	static uint32 interrupt_count = 0, ppc_interrupt_count = 0;
66		static clock_t interrupt_time = 0;
67		static uint32 exec68k_count = 0;
68		static clock_t exec68k_time = 0;
#	Line 84 | Line 90 | extern "C" void check_load_invoc(uint32
90		// PowerPC EmulOp to exit from emulation looop
91		const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP | 1;
92
87	–	// Enable multicore (main/interrupts) cpu emulation?
88	–	#define MULTICORE_CPU (ASYNC_IRQ ? 1 : 0)
89	–
93		// Enable interrupt routine safety checks?
94		#define SAFE_INTERRUPT_PPC 1
95
#	Line 109 | Line 112 | const uint32 POWERPC_EXEC_RETURN = POWER
112		static KernelData * const kernel_data = (KernelData *)KERNEL_DATA_BASE;
113
114		// SIGSEGV handler
115	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
115	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
116
117		#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
118		// Special trampolines for EmulOp and NativeOp
#	Line 447 | Line 450 | int sheepshaver_cpu::compile1(codegen_co
450		status = COMPILE_CODE_OK;
451		break;
452		#endif
450	–	case NATIVE_DISABLE_INTERRUPT:
451	–	dg.gen_invoke(DisableInterrupt);
452	–	status = COMPILE_CODE_OK;
453	–	break;
454	–	case NATIVE_ENABLE_INTERRUPT:
455	–	dg.gen_invoke(EnableInterrupt);
456	–	status = COMPILE_CODE_OK;
457	–	break;
453		case NATIVE_BITBLT:
454		dg.gen_load_T0_GPR(3);
455		dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
#	Line 472 | Line 467 | int sheepshaver_cpu::compile1(codegen_co
467		break;
468		}
469		// Could we fully translate this NativeOp?
470	<	if (FN_field::test(opcode)) {
471	<	if (status != COMPILE_FAILURE) {
470	>	if (status == COMPILE_CODE_OK) {
471	>	if (!FN_field::test(opcode))
472	>	cg_context.done_compile = false;
473	>	else {
474		dg.gen_load_A0_LR();
475		dg.gen_set_PC_A0();
476	+	cg_context.done_compile = true;
477		}
480	–	cg_context.done_compile = true;
481	–	break;
482	–	}
483	–	else if (status != COMPILE_FAILURE) {
484	–	cg_context.done_compile = false;
478		break;
479		}
480		#if PPC_REENTRANT_JIT
481		// Try to execute NativeOp trampoline
482	<	dg.gen_set_PC_im(cg_context.pc + 4);
482	>	if (!FN_field::test(opcode))
483	>	dg.gen_set_PC_im(cg_context.pc + 4);
484	>	else {
485	>	dg.gen_load_A0_LR();
486	>	dg.gen_set_PC_A0();
487	>	}
488		dg.gen_mov_32_T0_im(selector);
489		dg.gen_jmp(native_op_trampoline);
490		cg_context.done_compile = true;
#	Line 494 | Line 492 | int sheepshaver_cpu::compile1(codegen_co
492		break;
493		#endif
494		// Invoke NativeOp handler
495	<	typedef void (*func_t)(dyngen_cpu_base, uint32);
496	<	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
497	<	dg.gen_invoke_CPU_im(func, selector);
498	<	cg_context.done_compile = false;
499	<	status = COMPILE_CODE_OK;
495	>	if (!FN_field::test(opcode)) {
496	>	typedef void (*func_t)(dyngen_cpu_base, uint32);
497	>	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
498	>	dg.gen_invoke_CPU_im(func, selector);
499	>	cg_context.done_compile = false;
500	>	status = COMPILE_CODE_OK;
501	>	}
502	>	// Otherwise, let it generate a call to execute_sheep() which
503	>	// will cause necessary updates to the program counter
504		break;
505		}
506
#	Line 592 | Line 594 | sheepshaver_cpu::interrupt_context::~int
594		void sheepshaver_cpu::interrupt(uint32 entry)
595		{
596		#if EMUL_TIME_STATS
597	<	interrupt_count++;
597	>	ppc_interrupt_count++;
598		const clock_t interrupt_start = clock();
599		#endif
600
#	Line 603 | Line 605 | void sheepshaver_cpu::interrupt(uint32 e
605		depth++;
606		#endif
607
606	–	#if !MULTICORE_CPU
608		// Save program counters and branch registers
609		uint32 saved_pc = pc();
610		uint32 saved_lr = lr();
611		uint32 saved_ctr= ctr();
612		uint32 saved_sp = gpr(1);
612	–	#endif
613
614		// Initialize stack pointer to SheepShaver alternate stack base
615		gpr(1) = SignalStackBase() - 64;
#	Line 649 | Line 649 | void sheepshaver_cpu::interrupt(uint32 e
649		// Enter nanokernel
650		execute(entry);
651
652	–	#if !MULTICORE_CPU
652		// Restore program counters and branch registers
653		pc() = saved_pc;
654		lr() = saved_lr;
655		ctr()= saved_ctr;
656		gpr(1) = saved_sp;
658	–	#endif
657
658		#if EMUL_TIME_STATS
659		interrupt_time += (clock() - interrupt_start);
#	Line 857 | Line 855 | inline void sheepshaver_cpu::get_resourc
855		*              SheepShaver CPU engine interface
856		**/
857
858	<	static sheepshaver_cpu *main_cpu = NULL;                // CPU emulator to handle usual control flow
859	<	static sheepshaver_cpu *interrupt_cpu = NULL;   // CPU emulator to handle interrupts
862	<	static sheepshaver_cpu *current_cpu = NULL;             // Current CPU emulator context
858	>	// PowerPC CPU emulator
859	>	static sheepshaver_cpu *ppc_cpu = NULL;
860
861		void FlushCodeCache(uintptr start, uintptr end)
862		{
863		D(bug("FlushCodeCache(%08x, %08x)\n", start, end));
864	<	main_cpu->invalidate_cache_range(start, end);
868	<	#if MULTICORE_CPU
869	<	interrupt_cpu->invalidate_cache_range(start, end);
870	<	#endif
871	<	}
872	<
873	<	static inline void cpu_push(sheepshaver_cpu *new_cpu)
874	<	{
875	<	#if MULTICORE_CPU
876	<	current_cpu = new_cpu;
877	<	#endif
878	<	}
879	<
880	<	static inline void cpu_pop()
881	<	{
882	<	#if MULTICORE_CPU
883	<	current_cpu = main_cpu;
884	<	#endif
864	>	ppc_cpu->invalidate_cache_range(start, end);
865		}
866
867		// Dump PPC registers
868		static void dump_registers(void)
869		{
870	<	current_cpu->dump_registers();
870	>	ppc_cpu->dump_registers();
871		}
872
873		// Dump log
874		static void dump_log(void)
875		{
876	<	current_cpu->dump_log();
876	>	ppc_cpu->dump_log();
877		}
878
879		/*
880		*  Initialize CPU emulation
881		*/
882
883	<	static sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
883	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
884		{
885		#if ENABLE_VOSF
886		// Handle screen fault
#	Line 916 | Line 896 | static sigsegv_return_t sigsegv_handler(
896		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
897
898		// Get program counter of target CPU
899	<	sheepshaver_cpu * const cpu = current_cpu;
899	>	sheepshaver_cpu * const cpu = ppc_cpu;
900		const uint32 pc = cpu->pc();
901
902		// Fault in Mac ROM or RAM?
903	<	bool mac_fault = (pc >= ROM_BASE) && (pc < (ROM_BASE + ROM_AREA_SIZE)) || (pc >= RAMBase) && (pc < (RAMBase + RAMSize));
903	>	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));
904		if (mac_fault) {
905
906		// "VM settings" during MacOS 8 installation
#	Line 940 | Line 920 | static sigsegv_return_t sigsegv_handler(
920		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
921		else if (pc == ROM_BASE + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
922		return SIGSEGV_RETURN_SKIP_INSTRUCTION;
923	+
924	+	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
925	+	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(16) == 0xf3012002 || cpu->gpr(16) == 0xf3012000))
926	+	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
927	+	else if ((pc - DR_CACHE_BASE) < DR_CACHE_SIZE && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
928	+	return SIGSEGV_RETURN_SKIP_INSTRUCTION;
929
930		// Ignore writes to the zero page
931		else if ((uint32)(addr - SheepMem::ZeroPage()) < (uint32)SheepMem::PageSize())
#	Line 956 | Line 942 | static sigsegv_return_t sigsegv_handler(
942		printf("SIGSEGV\n");
943		printf("  pc %p\n", fault_instruction);
944		printf("  ea %p\n", fault_address);
959	–	printf(" cpu %s\n", current_cpu == main_cpu ? "main" : "interrupts");
945		dump_registers();
946	<	current_cpu->dump_log();
946	>	ppc_cpu->dump_log();
947		enter_mon();
948		QuitEmulator();
949
#	Line 968 | Line 953 | static sigsegv_return_t sigsegv_handler(
953		void init_emul_ppc(void)
954		{
955		// Initialize main CPU emulator
956	<	main_cpu = new sheepshaver_cpu();
957	<	main_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
958	<	main_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
956	>	ppc_cpu = new sheepshaver_cpu();
957	>	ppc_cpu->set_register(powerpc_registers::GPR(3), any_register((uint32)ROM_BASE + 0x30d000));
958	>	ppc_cpu->set_register(powerpc_registers::GPR(4), any_register(KernelDataAddr + 0x1000));
959		WriteMacInt32(XLM_RUN_MODE, MODE_68K);
960
976	–	#if MULTICORE_CPU
977	–	// Initialize alternate CPU emulator to handle interrupts
978	–	interrupt_cpu = new sheepshaver_cpu();
979	–	#endif
980	–
981	–	// Install the handler for SIGSEGV
982	–	sigsegv_install_handler(sigsegv_handler);
983	–
961		#if ENABLE_MON
962		// Install "regs" command in cxmon
963		mon_add_command("regs", dump_registers, "regs                     Dump PowerPC registers\n");
#	Line 1006 | Line 983 | void exit_emul_ppc(void)
983		printf("Total emulation time : %.1f sec\n", double(emul_time) / double(CLOCKS_PER_SEC));
984		printf("Total interrupt count: %d (%2.1f Hz)\n", interrupt_count,
985		(double(interrupt_count) * CLOCKS_PER_SEC) / double(emul_time));
986	+	printf("Total ppc interrupt count: %d (%2.1f %%)\n", ppc_interrupt_count,
987	+	(double(ppc_interrupt_count) * 100.0) / double(interrupt_count));
988
989		#define PRINT_STATS(LABEL, VAR_PREFIX) do {                                                             \
990		printf("Total " LABEL " count : %d\n", VAR_PREFIX##_count);             \
#	Line 1022 | Line 1001 | void exit_emul_ppc(void)
1001		printf("\n");
1002		#endif
1003
1004	<	delete main_cpu;
1026	<	#if MULTICORE_CPU
1027	<	delete interrupt_cpu;
1028	<	#endif
1004	>	delete ppc_cpu;
1005		}
1006
1007		#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
#	Line 1060 | Line 1036 | void init_emul_op_trampolines(basic_dyng
1036
1037		void emul_ppc(uint32 entry)
1038		{
1063	–	current_cpu = main_cpu;
1039		#if 0
1040	<	current_cpu->start_log();
1040	>	ppc_cpu->start_log();
1041		#endif
1042		// start emulation loop and enable code translation or caching
1043	<	current_cpu->execute(entry);
1043	>	ppc_cpu->execute(entry);
1044		}
1045
1046		/*
1047		*  Handle PowerPC interrupt
1048		*/
1049
1075	–	#if ASYNC_IRQ
1076	–	void HandleInterrupt(void)
1077	–	{
1078	–	main_cpu->handle_interrupt();
1079	–	}
1080	–	#else
1050		void TriggerInterrupt(void)
1051		{
1052		#if 0
1053		WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
1054		#else
1055		// Trigger interrupt to main cpu only
1056	<	if (main_cpu)
1057	<	main_cpu->trigger_interrupt();
1056	>	if (ppc_cpu)
1057	>	ppc_cpu->trigger_interrupt();
1058		#endif
1059		}
1091	–	#endif
1060
1061		void sheepshaver_cpu::handle_interrupt(void)
1062		{
1063	+	#ifdef USE_SDL_VIDEO
1064	+	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
1065	+	SDL_PumpEvents();
1066	+	#endif
1067	+
1068		// Do nothing if interrupts are disabled
1069	<	if (*(int32 *)XLM_IRQ_NEST > 0)
1069	>	if (int32(ReadMacInt32(XLM_IRQ_NEST)) > 0)
1070		return;
1071
1072	<	// Do nothing if there is no interrupt pending
1073	<	if (InterruptFlags == 0)
1074	<	return;
1072	>	// Current interrupt nest level
1073	>	static int interrupt_depth = 0;
1074	>	++interrupt_depth;
1075	>	#if EMUL_TIME_STATS
1076	>	interrupt_count++;
1077	>	#endif
1078
1079		// Disable MacOS stack sniffer
1080		WriteMacInt32(0x110, 0);
#	Line 1107 | Line 1083 | void sheepshaver_cpu::handle_interrupt(v
1083		switch (ReadMacInt32(XLM_RUN_MODE)) {
1084		case MODE_68K:
1085		// 68k emulator active, trigger 68k interrupt level 1
1110	–	assert(current_cpu == main_cpu);
1086		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
1087		set_cr(get_cr() | tswap32(kernel_data->v[0x674 >> 2]));
1088		break;
#	Line 1115 | Line 1090 | void sheepshaver_cpu::handle_interrupt(v
1090		#if INTERRUPTS_IN_NATIVE_MODE
1091		case MODE_NATIVE:
1092		// 68k emulator inactive, in nanokernel?
1093	<	assert(current_cpu == main_cpu);
1119	<	if (gpr(1) != KernelDataAddr) {
1093	>	if (gpr(1) != KernelDataAddr && interrupt_depth == 1) {
1094		interrupt_context ctx(this, "PowerPC mode");
1095
1096		// Prepare for 68k interrupt level 1
#	Line 1127 | Line 1101 | void sheepshaver_cpu::handle_interrupt(v
1101
1102		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
1103		DisableInterrupt();
1130	–	cpu_push(interrupt_cpu);
1104		if (ROMType == ROMTYPE_NEWWORLD)
1105	<	current_cpu->interrupt(ROM_BASE + 0x312b1c);
1105	>	ppc_cpu->interrupt(ROM_BASE + 0x312b1c);
1106		else
1107	<	current_cpu->interrupt(ROM_BASE + 0x312a3c);
1135	<	cpu_pop();
1107	>	ppc_cpu->interrupt(ROM_BASE + 0x312a3c);
1108		}
1109		break;
1110		#endif
#	Line 1142 | Line 1114 | void sheepshaver_cpu::handle_interrupt(v
1114		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
1115		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1116		interrupt_context ctx(this, "68k mode");
1117	+	#if EMUL_TIME_STATS
1118	+	const clock_t interrupt_start = clock();
1119	+	#endif
1120		#if 1
1121		// Execute full 68k interrupt routine
1122		M68kRegisters r;
#	Line 1167 | Line 1142 | void sheepshaver_cpu::handle_interrupt(v
1142		}
1143		}
1144		#endif
1145	+	#if EMUL_TIME_STATS
1146	+	interrupt_time += (clock() - interrupt_start);
1147	+	#endif
1148		}
1149		break;
1150		#endif
1151		}
1152	+
1153	+	// We are done with this interrupt
1154	+	--interrupt_depth;
1155		}
1156
1157		static void get_resource(void);
#	Line 1283 | Line 1264 | void sheepshaver_cpu::execute_native_op(
1264		get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1265		break;
1266		}
1286	–	case NATIVE_DISABLE_INTERRUPT:
1287	–	DisableInterrupt();
1288	–	break;
1289	–	case NATIVE_ENABLE_INTERRUPT:
1290	–	EnableInterrupt();
1291	–	break;
1267		case NATIVE_MAKE_EXECUTABLE:
1268		MakeExecutable(0, (void *)gpr(4), gpr(5));
1269		break;
#	Line 1314 | Line 1289 | void sheepshaver_cpu::execute_native_op(
1289
1290		void Execute68k(uint32 pc, M68kRegisters *r)
1291		{
1292	<	current_cpu->execute_68k(pc, r);
1292	>	ppc_cpu->execute_68k(pc, r);
1293		}
1294
1295		/*
#	Line 1337 | Line 1312 | void Execute68kTrap(uint16 trap, M68kReg
1312
1313		uint32 call_macos(uint32 tvect)
1314		{
1315	<	return current_cpu->execute_macos_code(tvect, 0, NULL);
1315	>	return ppc_cpu->execute_macos_code(tvect, 0, NULL);
1316		}
1317
1318		uint32 call_macos1(uint32 tvect, uint32 arg1)
1319		{
1320		const uint32 args[] = { arg1 };
1321	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1321	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1322		}
1323
1324		uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2)
1325		{
1326		const uint32 args[] = { arg1, arg2 };
1327	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1327	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1328		}
1329
1330		uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3)
1331		{
1332		const uint32 args[] = { arg1, arg2, arg3 };
1333	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1333	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1334		}
1335
1336		uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4)
1337		{
1338		const uint32 args[] = { arg1, arg2, arg3, arg4 };
1339	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1339	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1340		}
1341
1342		uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5)
1343		{
1344		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5 };
1345	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1345	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1346		}
1347
1348		uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6)
1349		{
1350		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6 };
1351	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1351	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1352		}
1353
1354		uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7)
1355		{
1356		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1357	<	return current_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1357	>	return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1358		}
1359
1360		/*
#	Line 1388 | Line 1363 | uint32 call_macos7(uint32 tvect, uint32
1363
1364		void get_resource(void)
1365		{
1366	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1366	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1367		}
1368
1369		void get_1_resource(void)
1370		{
1371	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1371	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1372		}
1373
1374		void get_ind_resource(void)
1375		{
1376	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1376	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1377		}
1378
1379		void get_1_ind_resource(void)
1380		{
1381	<	current_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1381	>	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1382		}
1383
1384		void r_get_resource(void)
1385		{
1386	<	current_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1386	>	ppc_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1387		}

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