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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.65 by gbeauche, 2005-07-03T22:02:01Z vs.
Revision 1.75 by gbeauche, 2008-01-01T09:47:39Z

#	Line 1 \| Line 1
1		/*
2		* sheepshaver_glue.cpp - Glue Kheperix CPU to SheepShaver CPU engine interface
3		*
4	<	* SheepShaver (C) 1997-2005 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 89 \| 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;
#	Line 117 \| Line 118 \| *static uint8 emul_op_trampoline;**
118		static uint8 *native_op_trampoline;
119		#endif
120
120	–	// JIT Compiler enabled?
121	–	static inline bool enable_jit_p()
122	–	{
123	–	return PrefsFindBool("jit");
124	–	}
125	–
121
122		/**
123		* PowerPC emulator glue with special 'sheep' opcodes
#	Line 176 \| Line 171 \| public:
171		void interrupt(uint32 entry);
172
173		// Make sure the SIGSEGV handler can access CPU registers
174	<	friend sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
180	<
181	<	// Memory allocator returning areas aligned on 16-byte boundaries
182	<	void *operator new(size_t size);
183	<	void operator delete(void *p);
174	>	friend sigsegv_return_t sigsegv_handler(sigsegv_info_t *sip);
175		};
176
186	–	// Memory allocator returning sheepshaver_cpu objects aligned on 16-byte boundaries
187	–	// FORMAT: [ alignment ] magic identifier, offset to malloc'ed data, sheepshaver_cpu data
188	–	void *sheepshaver_cpu::operator new(size_t size)
189	–	{
190	–	const int ALIGN = 16;
191	–
192	–	// Allocate enough space for sheepshaver_cpu data + signature + align pad
193	–	uint8 ptr = (uint8 )malloc(size + ALIGN * 2);
194	–	if (ptr == NULL)
195	–	throw std::bad_alloc();
196	–
197	–	// Align memory
198	–	int ofs = 0;
199	–	while ((((uintptr)ptr) % ALIGN) != 0)
200	–	ofs++, ptr++;
201	–
202	–	// Insert signature and offset
203	–	struct aligned_block_t {
204	–	uint32 pad[(ALIGN - 8) / 4];
205	–	uint32 signature;
206	–	uint32 offset;
207	–	uint8 data[sizeof(sheepshaver_cpu)];
208	–	};
209	–	aligned_block_t blk = (aligned_block_t )ptr;
210	–	blk->signature = FOURCC('S','C','P','U');
211	–	blk->offset = ofs + (&blk->data[0] - (uint8 *)blk);
212	–	assert((((uintptr)&blk->data) % ALIGN) == 0);
213	–	return &blk->data[0];
214	–	}
215	–
216	–	void sheepshaver_cpu::operator delete(void *p)
217	–	{
218	–	uint32 blk = (uint32 )p;
219	–	assert(blk[-2] == FOURCC('S','C','P','U'));
220	–	void ptr = (void )(((uintptr)p) - blk[-1]);
221	–	free(ptr);
222	–	}
223	–
177		sheepshaver_cpu::sheepshaver_cpu()
225	–	: powerpc_cpu(enable_jit_p())
178		{
179		init_decoder();
180	+
181	+	#if PPC_ENABLE_JIT
182	+	if (PrefsFindBool("jit"))
183	+	enable_jit();
184	+	#endif
185		}
186
187		void sheepshaver_cpu::init_decoder()
#	Line 232 \| Line 189 \| void sheepshaver_cpu::init_decoder()
189		static const instr_info_t sheep_ii_table[] = {
190		{ "sheep",
191		(execute_pmf)&sheepshaver_cpu::execute_sheep,
235	–	NULL,
192		PPC_I(SHEEP),
193		D_form, 6, 0, CFLOW_JUMP \| CFLOW_TRAP
194		}
#	Line 377 \| Line 333 \| int sheepshaver_cpu::compile1(codegen_co
333		status = COMPILE_CODE_OK;
334		break;
335		}
336	+	#endif
337		case NATIVE_CHECK_LOAD_INVOC:
338		dg.gen_load_T0_GPR(3);
339		dg.gen_load_T1_GPR(4);
#	Line 385 \| Line 342 \| int sheepshaver_cpu::compile1(codegen_co
342		dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc);
343		status = COMPILE_CODE_OK;
344		break;
345	<	#endif
346	<	case NATIVE_BITBLT:
345	>	case NATIVE_NAMED_CHECK_LOAD_INVOC:
346	>	dg.gen_load_T0_GPR(3);
347	>	dg.gen_load_T1_GPR(4);
348	>	dg.gen_load_T2_GPR(5);
349	>	dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))named_check_load_invoc);
350	>	status = COMPILE_CODE_OK;
351	>	break;
352	>	case NATIVE_NQD_SYNC_HOOK:
353	>	dg.gen_load_T0_GPR(3);
354	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_sync_hook);
355	>	dg.gen_store_T0_GPR(3);
356	>	status = COMPILE_CODE_OK;
357	>	break;
358	>	case NATIVE_NQD_BITBLT_HOOK:
359	>	dg.gen_load_T0_GPR(3);
360	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_bitblt_hook);
361	>	dg.gen_store_T0_GPR(3);
362	>	status = COMPILE_CODE_OK;
363	>	break;
364	>	case NATIVE_NQD_FILLRECT_HOOK:
365	>	dg.gen_load_T0_GPR(3);
366	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_fillrect_hook);
367	>	dg.gen_store_T0_GPR(3);
368	>	status = COMPILE_CODE_OK;
369	>	break;
370	>	case NATIVE_NQD_UNKNOWN_HOOK:
371	>	dg.gen_load_T0_GPR(3);
372	>	dg.gen_invoke_T0_ret_T0((uint32 (*)(uint32))NQD_unknown_hook);
373	>	dg.gen_store_T0_GPR(3);
374	>	status = COMPILE_CODE_OK;
375	>	break;
376	>	case NATIVE_NQD_BITBLT:
377		dg.gen_load_T0_GPR(3);
378		dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
379		status = COMPILE_CODE_OK;
380		break;
381	<	case NATIVE_INVRECT:
381	>	case NATIVE_NQD_INVRECT:
382		dg.gen_load_T0_GPR(3);
383		dg.gen_invoke_T0((void (*)(uint32))NQD_invrect);
384		status = COMPILE_CODE_OK;
385		break;
386	<	case NATIVE_FILLRECT:
386	>	case NATIVE_NQD_FILLRECT:
387		dg.gen_load_T0_GPR(3);
388		dg.gen_invoke_T0((void (*)(uint32))NQD_fillrect);
389		status = COMPILE_CODE_OK;
#	Line 407 \| Line 394 \| int sheepshaver_cpu::compile1(codegen_co
394		if (!FN_field::test(opcode))
395		cg_context.done_compile = false;
396		else {
397	<	dg.gen_load_A0_LR();
398	<	dg.gen_set_PC_A0();
397	>	dg.gen_load_T0_LR_aligned();
398	>	dg.gen_set_PC_T0();
399		cg_context.done_compile = true;
400		}
401		break;
#	Line 418 \| Line 405 \| int sheepshaver_cpu::compile1(codegen_co
405		if (!FN_field::test(opcode))
406		dg.gen_set_PC_im(cg_context.pc + 4);
407		else {
408	<	dg.gen_load_A0_LR();
409	<	dg.gen_set_PC_A0();
408	>	dg.gen_load_T0_LR_aligned();
409	>	dg.gen_set_PC_T0();
410		}
411		dg.gen_mov_32_T0_im(selector);
412		dg.gen_jmp(native_op_trampoline);
#	Line 743 \| Line 730 \| static void dump_log(void)
730		* Initialize CPU emulation
731		*/
732
733	<	sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
733	>	sigsegv_return_t sigsegv_handler(sigsegv_info_t *sip)
734		{
735		#if ENABLE_VOSF
736		// Handle screen fault
737	<	extern bool Screen_fault_handler(sigsegv_address_t, sigsegv_address_t);
738	<	if (Screen_fault_handler(fault_address, fault_instruction))
737	>	extern bool Screen_fault_handler(sigsegv_info_t *sip);
738	>	if (Screen_fault_handler(sip))
739		return SIGSEGV_RETURN_SUCCESS;
740		#endif
741
742	<	const uintptr addr = (uintptr)fault_address;
742	>	const uintptr addr = (uintptr)sigsegv_get_fault_address(sip);
743		#if HAVE_SIGSEGV_SKIP_INSTRUCTION
744		// Ignore writes to ROM
745		if ((addr - (uintptr)ROMBaseHost) < ROM_SIZE)
#	Line 803 \| Line 790 \| sigsegv_return_t sigsegv_handler(sigsegv
790		#endif
791
792		fprintf(stderr, "SIGSEGV\n");
793	<	fprintf(stderr, " pc %p\n", fault_instruction);
794	<	fprintf(stderr, " ea %p\n", fault_address);
793	>	fprintf(stderr, " pc %p\n", sigsegv_get_fault_instruction_address(sip));
794	>	fprintf(stderr, " ea %p\n", sigsegv_get_fault_address(sip));
795		dump_registers();
796		ppc_cpu->dump_log();
797		enter_mon();
#	Line 868 \| Line 855 \| void exit_emul_ppc(void)
855		#endif
856
857		delete ppc_cpu;
858	+	ppc_cpu = NULL;
859		}
860
861		#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
#	Line 1012 \| Line 1000 \| void HandleInterrupt(powerpc_registers *
1000		}
1001		}
1002
1015	–	static void get_resource(void);
1016	–	static void get_1_resource(void);
1017	–	static void get_ind_resource(void);
1018	–	static void get_1_ind_resource(void);
1019	–	static void r_get_resource(void);
1020	–
1003		// Execute NATIVE_OP routine
1004		void sheepshaver_cpu::execute_native_op(uint32 selector)
1005		{
#	Line 1072 \| Line 1054 \| void sheepshaver_cpu::execute_native_op(
1054		case NATIVE_ETHER_RSRV:
1055		gpr(3) = ether_rsrv((queue_t *)gpr(3));
1056		break;
1057	<	case NATIVE_SYNC_HOOK:
1057	>	case NATIVE_NQD_SYNC_HOOK:
1058		gpr(3) = NQD_sync_hook(gpr(3));
1059		break;
1060	<	case NATIVE_BITBLT_HOOK:
1060	>	case NATIVE_NQD_UNKNOWN_HOOK:
1061	>	gpr(3) = NQD_unknown_hook(gpr(3));
1062	>	break;
1063	>	case NATIVE_NQD_BITBLT_HOOK:
1064		gpr(3) = NQD_bitblt_hook(gpr(3));
1065		break;
1066	<	case NATIVE_BITBLT:
1066	>	case NATIVE_NQD_BITBLT:
1067		NQD_bitblt(gpr(3));
1068		break;
1069	<	case NATIVE_FILLRECT_HOOK:
1069	>	case NATIVE_NQD_FILLRECT_HOOK:
1070		gpr(3) = NQD_fillrect_hook(gpr(3));
1071		break;
1072	<	case NATIVE_INVRECT:
1072	>	case NATIVE_NQD_INVRECT:
1073		NQD_invrect(gpr(3));
1074		break;
1075	<	case NATIVE_FILLRECT:
1075	>	case NATIVE_NQD_FILLRECT:
1076		NQD_fillrect(gpr(3));
1077		break;
1078		case NATIVE_SERIAL_NOTHING:
#	Line 1111 \| Line 1096 \| void sheepshaver_cpu::execute_native_op(
1096		break;
1097		}
1098		case NATIVE_GET_RESOURCE:
1099	+	get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1100	+	break;
1101		case NATIVE_GET_1_RESOURCE:
1102	+	get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1103	+	break;
1104		case NATIVE_GET_IND_RESOURCE:
1105	+	get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1106	+	break;
1107		case NATIVE_GET_1_IND_RESOURCE:
1108	<	case NATIVE_R_GET_RESOURCE: {
1109	<	typedef void (*GetResourceCallback)(void);
1110	<	static const GetResourceCallback get_resource_callbacks[] = {
1111	<	::get_resource,
1121	<	::get_1_resource,
1122	<	::get_ind_resource,
1123	<	::get_1_ind_resource,
1124	<	::r_get_resource
1125	<	};
1126	<	get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1108	>	get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1109	>	break;
1110	>	case NATIVE_R_GET_RESOURCE:
1111	>	get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1112		break;
1128	–	}
1113		case NATIVE_MAKE_EXECUTABLE:
1114		MakeExecutable(0, gpr(4), gpr(5));
1115		break;
1116		case NATIVE_CHECK_LOAD_INVOC:
1117		check_load_invoc(gpr(3), gpr(4), gpr(5));
1118		break;
1119	+	case NATIVE_NAMED_CHECK_LOAD_INVOC:
1120	+	named_check_load_invoc(gpr(3), gpr(4), gpr(5));
1121	+	break;
1122		default:
1123		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);
1124		QuitEmulator();
#	Line 1218 \| Line 1205 \| uint32 call_macos7(uint32 tvect, uint32
1205		const uint32 args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
1206		return ppc_cpu->execute_macos_code(tvect, sizeof(args)/sizeof(args[0]), args);
1207		}
1221	–
1222	–	/*
1223	–	* Resource Manager thunks
1224	–	*/
1225	–
1226	–	void get_resource(void)
1227	–	{
1228	–	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_RESOURCE));
1229	–	}
1230	–
1231	–	void get_1_resource(void)
1232	–	{
1233	–	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_RESOURCE));
1234	–	}
1235	–
1236	–	void get_ind_resource(void)
1237	–	{
1238	–	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_IND_RESOURCE));
1239	–	}
1240	–
1241	–	void get_1_ind_resource(void)
1242	–	{
1243	–	ppc_cpu->get_resource(ReadMacInt32(XLM_GET_1_IND_RESOURCE));
1244	–	}
1245	–
1246	–	void r_get_resource(void)
1247	–	{
1248	–	ppc_cpu->get_resource(ReadMacInt32(XLM_R_GET_RESOURCE));
1249	–	}

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Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents): Revision 1.65 by gbeauche, 2005-07-03T22:02:01Z vs. Revision 1.75 by gbeauche, 2008-01-01T09:47:39Z

Diff Legend

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.65 by gbeauche, 2005-07-03T22:02:01Z vs.
Revision 1.75 by gbeauche, 2008-01-01T09:47:39Z