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

Comparing SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp (file contents):
Revision 1.35 by gbeauche, 2004-04-22T22:54:47Z vs.
Revision 1.40 by gbeauche, 2004-05-20T11:47:27Z

#	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>
#	Line 86 | Line 87 | const uint32 POWERPC_EXEC_RETURN = POWER
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	+
93		// Enable Execute68k() safety checks?
94		#define SAFE_EXEC_68K 1
95
#	Line 98 | Line 102 | const uint32 POWERPC_EXEC_RETURN = POWER
102		// Interrupts in native mode?
103		#define INTERRUPTS_IN_NATIVE_MODE 1
104
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;
110
111		// SIGSEGV handler
112		static 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()
122		{
#	Line 126 | Line 139 | class sheepshaver_cpu
139		void init_decoder();
140		void execute_sheep(uint32 opcode);
141
142	+	// Filter out EMUL_OP routines that only call native code
143	+	bool filter_execute_emul_op(uint32 emul_op);
144	+
145	+	// "Native" EMUL_OP routines
146	+	void execute_emul_op_microseconds();
147	+	void execute_emul_op_idle_time_1();
148	+	void execute_emul_op_idle_time_2();
149	+
150	+	// CPU context to preserve on interrupt
151	+	class interrupt_context {
152	+	uint32 gpr[32];
153	+	uint32 pc;
154	+	uint32 lr;
155	+	uint32 ctr;
156	+	uint32 cr;
157	+	uint32 xer;
158	+	sheepshaver_cpu *cpu;
159	+	const char *where;
160	+	public:
161	+	interrupt_context(sheepshaver_cpu *_cpu, const char *_where);
162	+	~interrupt_context();
163	+	};
164	+
165		public:
166
167		// Constructor
#	Line 137 | Line 173 | public:
173		uint32 get_xer() const          { return xer().get(); }
174		void set_xer(uint32 v)          { xer().set(v); }
175
176	+	// Execute NATIVE_OP routine
177	+	void execute_native_op(uint32 native_op);
178	+
179		// Execute EMUL_OP routine
180		void execute_emul_op(uint32 emul_op);
181
#	Line 150 | Line 189 | public:
189		uint32 execute_macos_code(uint32 tvect, int nargs, uint32 const *args);
190
191		// Compile one instruction
192	<	virtual bool compile1(codegen_context_t & cg_context);
192	>	virtual int compile1(codegen_context_t & cg_context);
193
194		// Resource manager thunk
195		void get_resource(uint32 old_get_resource);
#	Line 221 | Line 260 | void sheepshaver_cpu::init_decoder()
260		}
261		}
262
224	–	// Forward declaration for native opcode handler
225	–	static void NativeOp(int selector);
226	–
263		/*              NativeOp instruction format:
264		+------------+-------------------------+--+-----------+------------+
265		|      6     |                         |FN|    OP     |      2     |
#	Line 235 | Line 271 | typedef bit_field< 19, 19 > FN_field;
271		typedef bit_field< 20, 25 > NATIVE_OP_field;
272		typedef bit_field< 26, 31 > EMUL_OP_field;
273
274	+	// "Native" EMUL_OP routines
275	+	#define GPR_A(REG) gpr(16 + (REG))
276	+	#define GPR_D(REG) gpr( 8 + (REG))
277	+
278	+	void sheepshaver_cpu::execute_emul_op_microseconds()
279	+	{
280	+	Microseconds(GPR_A(0), GPR_D(0));
281	+	}
282	+
283	+	void sheepshaver_cpu::execute_emul_op_idle_time_1()
284	+	{
285	+	// Sleep if no events pending
286	+	if (ReadMacInt32(0x14c) == 0)
287	+	Delay_usec(16667);
288	+	GPR_A(0) = ReadMacInt32(0x2b6);
289	+	}
290	+
291	+	void sheepshaver_cpu::execute_emul_op_idle_time_2()
292	+	{
293	+	// Sleep if no events pending
294	+	if (ReadMacInt32(0x14c) == 0)
295	+	Delay_usec(16667);
296	+	GPR_D(0) = (uint32)-2;
297	+	}
298	+
299	+	// Filter out EMUL_OP routines that only call native code
300	+	bool sheepshaver_cpu::filter_execute_emul_op(uint32 emul_op)
301	+	{
302	+	switch (emul_op) {
303	+	case OP_MICROSECONDS:
304	+	execute_emul_op_microseconds();
305	+	return true;
306	+	case OP_IDLE_TIME:
307	+	execute_emul_op_idle_time_1();
308	+	return true;
309	+	case OP_IDLE_TIME_2:
310	+	execute_emul_op_idle_time_2();
311	+	return true;
312	+	}
313	+	return false;
314	+	}
315	+
316		// Execute EMUL_OP routine
317		void sheepshaver_cpu::execute_emul_op(uint32 emul_op)
318		{
319	+	#if ENABLE_NATIVE_EMUL_OP
320	+	// First, filter out EMUL_OPs that can be executed without a mode switch
321	+	if (filter_execute_emul_op(emul_op))
322	+	return;
323	+	#endif
324	+
325		M68kRegisters r68;
326		WriteMacInt32(XLM_68K_R25, gpr(25));
327		WriteMacInt32(XLM_RUN_MODE, MODE_EMUL_OP);
#	Line 275 | Line 359 | void sheepshaver_cpu::execute_sheep(uint
359		break;
360
361		case 2:         // EXEC_NATIVE
362	<	NativeOp(NATIVE_OP_field::extract(opcode));
362	>	execute_native_op(NATIVE_OP_field::extract(opcode));
363		if (FN_field::test(opcode))
364		pc() = lr();
365		else
#	Line 290 | Line 374 | void sheepshaver_cpu::execute_sheep(uint
374		}
375
376		// Compile one instruction
377	<	bool sheepshaver_cpu::compile1(codegen_context_t & cg_context)
377	>	int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
378		{
379		#if PPC_ENABLE_JIT
380		const instr_info_t *ii = cg_context.instr_info;
381		if (ii->mnemo != PPC_I(SHEEP))
382	<	return false;
382	>	return COMPILE_FAILURE;
383
384	<	bool compiled = false;
384	>	int status = COMPILE_FAILURE;
385		powerpc_dyngen & dg = cg_context.codegen;
386		uint32 opcode = cg_context.opcode;
387
388		switch (opcode & 0x3f) {
389		case 0:         // EMUL_RETURN
390		dg.gen_invoke(QuitEmulator);
391	<	compiled = true;
391	>	status = COMPILE_CODE_OK;
392		break;
393
394		case 1:         // EXEC_RETURN
395		dg.gen_spcflags_set(SPCFLAG_CPU_EXEC_RETURN);
396	<	compiled = true;
396	>	// Don't check for pending interrupts, we do know we have to
397	>	// get out of this block ASAP
398	>	dg.gen_exec_return();
399	>	status = COMPILE_EPILOGUE_OK;
400		break;
401
402		case 2: {       // EXEC_NATIVE
403		uint32 selector = NATIVE_OP_field::extract(opcode);
404		switch (selector) {
405	+	#if !PPC_REENTRANT_JIT
406	+	// Filter out functions that may invoke Execute68k() or
407	+	// CallMacOS(), this would break reentrancy as they could
408	+	// invalidate the translation cache and even overwrite
409	+	// continuation code when we are done with them.
410		case NATIVE_PATCH_NAME_REGISTRY:
411		dg.gen_invoke(DoPatchNameRegistry);
412	<	compiled = true;
412	>	status = COMPILE_CODE_OK;
413		break;
414		case NATIVE_VIDEO_INSTALL_ACCEL:
415		dg.gen_invoke(VideoInstallAccel);
416	<	compiled = true;
416	>	status = COMPILE_CODE_OK;
417		break;
418		case NATIVE_VIDEO_VBL:
419		dg.gen_invoke(VideoVBL);
420	<	compiled = true;
420	>	status = COMPILE_CODE_OK;
421		break;
422		case NATIVE_GET_RESOURCE:
423		case NATIVE_GET_1_RESOURCE:
#	Line 343 | Line 435 | bool sheepshaver_cpu::compile1(codegen_c
435		typedef void (*func_t)(dyngen_cpu_base, uint32);
436		func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::get_resource).ptr();
437		dg.gen_invoke_CPU_im(func, old_get_resource);
438	<	compiled = true;
438	>	status = COMPILE_CODE_OK;
439		break;
440		}
349	–	case NATIVE_DISABLE_INTERRUPT:
350	–	dg.gen_invoke(DisableInterrupt);
351	–	compiled = true;
352	–	break;
353	–	case NATIVE_ENABLE_INTERRUPT:
354	–	dg.gen_invoke(EnableInterrupt);
355	–	compiled = true;
356	–	break;
441		case NATIVE_CHECK_LOAD_INVOC:
442		dg.gen_load_T0_GPR(3);
443		dg.gen_load_T1_GPR(4);
444		dg.gen_se_16_32_T1();
445		dg.gen_load_T2_GPR(5);
446		dg.gen_invoke_T0_T1_T2((void (*)(uint32, uint32, uint32))check_load_invoc);
447	<	compiled = true;
447	>	status = COMPILE_CODE_OK;
448	>	break;
449	>	#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;
458		case NATIVE_BITBLT:
459		dg.gen_load_T0_GPR(3);
460		dg.gen_invoke_T0((void (*)(uint32))NQD_bitblt);
461	<	compiled = true;
461	>	status = COMPILE_CODE_OK;
462		break;
463		case NATIVE_INVRECT:
464		dg.gen_load_T0_GPR(3);
465		dg.gen_invoke_T0((void (*)(uint32))NQD_invrect);
466	<	compiled = true;
466	>	status = COMPILE_CODE_OK;
467		break;
468		case NATIVE_FILLRECT:
469		dg.gen_load_T0_GPR(3);
470		dg.gen_invoke_T0((void (*)(uint32))NQD_fillrect);
471	<	compiled = true;
471	>	status = COMPILE_CODE_OK;
472		break;
473		}
474	+	// Could we fully translate this NativeOp?
475		if (FN_field::test(opcode)) {
476	<	if (compiled) {
476	>	if (status != COMPILE_FAILURE) {
477		dg.gen_load_A0_LR();
478		dg.gen_set_PC_A0();
479		}
480		cg_context.done_compile = true;
481	+	break;
482		}
483	<	else
483	>	else if (status != COMPILE_FAILURE) {
484		cg_context.done_compile = false;
485	+	break;
486	+	}
487	+	#if PPC_REENTRANT_JIT
488	+	// Try to execute NativeOp trampoline
489	+	dg.gen_set_PC_im(cg_context.pc + 4);
490	+	dg.gen_mov_32_T0_im(selector);
491	+	dg.gen_jmp(native_op_trampoline);
492	+	cg_context.done_compile = true;
493	+	status = COMPILE_EPILOGUE_OK;
494	+	break;
495	+	#endif
496	+	// Invoke NativeOp handler
497	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
498	+	func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
499	+	dg.gen_invoke_CPU_im(func, selector);
500	+	cg_context.done_compile = false;
501	+	status = COMPILE_CODE_OK;
502		break;
503		}
504
505		default: {      // EMUL_OP
506	+	uint32 emul_op = EMUL_OP_field::extract(opcode) - 3;
507	+	#if ENABLE_NATIVE_EMUL_OP
508	+	typedef void (*emul_op_func_t)(dyngen_cpu_base);
509	+	emul_op_func_t emul_op_func = 0;
510	+	switch (emul_op) {
511	+	case OP_MICROSECONDS:
512	+	emul_op_func = (emul_op_func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op_microseconds).ptr();
513	+	break;
514	+	case OP_IDLE_TIME:
515	+	emul_op_func = (emul_op_func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op_idle_time_1).ptr();
516	+	break;
517	+	case OP_IDLE_TIME_2:
518	+	emul_op_func = (emul_op_func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op_idle_time_2).ptr();
519	+	break;
520	+	}
521	+	if (emul_op_func) {
522	+	dg.gen_invoke_CPU(emul_op_func);
523	+	cg_context.done_compile = false;
524	+	status = COMPILE_CODE_OK;
525	+	break;
526	+	}
527	+	#endif
528	+	#if PPC_REENTRANT_JIT
529	+	// Try to execute EmulOp trampoline
530	+	dg.gen_set_PC_im(cg_context.pc + 4);
531	+	dg.gen_mov_32_T0_im(emul_op);
532	+	dg.gen_jmp(emul_op_trampoline);
533	+	cg_context.done_compile = true;
534	+	status = COMPILE_EPILOGUE_OK;
535	+	break;
536	+	#endif
537	+	// Invoke EmulOp handler
538		typedef void (*func_t)(dyngen_cpu_base, uint32);
539		func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
540	<	dg.gen_invoke_CPU_im(func, EMUL_OP_field::extract(opcode) - 3);
540	>	dg.gen_invoke_CPU_im(func, emul_op);
541		cg_context.done_compile = false;
542	<	compiled = true;
542	>	status = COMPILE_CODE_OK;
543		break;
544		}
545		}
546	<	return compiled;
546	>	return status;
547	>	#endif
548	>	return COMPILE_FAILURE;
549	>	}
550	>
551	>	// CPU context to preserve on interrupt
552	>	sheepshaver_cpu::interrupt_context::interrupt_context(sheepshaver_cpu *_cpu, const char *_where)
553	>	{
554	>	#if SAFE_INTERRUPT_PPC >= 2
555	>	cpu = _cpu;
556	>	where = _where;
557	>
558	>	// Save interrupt context
559	>	memcpy(&gpr[0], &cpu->gpr(0), sizeof(gpr));
560	>	pc = cpu->pc();
561	>	lr = cpu->lr();
562	>	ctr = cpu->ctr();
563	>	cr = cpu->get_cr();
564	>	xer = cpu->get_xer();
565	>	#endif
566	>	}
567	>
568	>	sheepshaver_cpu::interrupt_context::~interrupt_context()
569	>	{
570	>	#if SAFE_INTERRUPT_PPC >= 2
571	>	// Check whether CPU context was preserved by interrupt
572	>	if (memcmp(&gpr[0], &cpu->gpr(0), sizeof(gpr)) != 0) {
573	>	printf("FATAL: %s: interrupt clobbers registers\n", where);
574	>	for (int i = 0; i < 32; i++)
575	>	if (gpr[i] != cpu->gpr(i))
576	>	printf(" r%d: %08x -> %08x\n", i, gpr[i], cpu->gpr(i));
577	>	}
578	>	if (pc != cpu->pc())
579	>	printf("FATAL: %s: interrupt clobbers PC\n", where);
580	>	if (lr != cpu->lr())
581	>	printf("FATAL: %s: interrupt clobbers LR\n", where);
582	>	if (ctr != cpu->ctr())
583	>	printf("FATAL: %s: interrupt clobbers CTR\n", where);
584	>	if (cr != cpu->get_cr())
585	>	printf("FATAL: %s: interrupt clobbers CR\n", where);
586	>	if (xer != cpu->get_xer())
587	>	printf("FATAL: %s: interrupt clobbers XER\n", where);
588		#endif
404	–	return false;
589		}
590
591		// Handle MacOS interrupt
#	Line 412 | Line 596 | void sheepshaver_cpu::interrupt(uint32 e
596		const clock_t interrupt_start = clock();
597		#endif
598
599	+	#if SAFE_INTERRUPT_PPC
600	+	static int depth = 0;
601	+	if (depth != 0)
602	+	printf("FATAL: sheepshaver_cpu::interrupt() called more than once: %d\n", depth);
603	+	depth++;
604	+	#endif
605	+
606		#if !MULTICORE_CPU
607		// Save program counters and branch registers
608		uint32 saved_pc = pc();
#	Line 469 | Line 660 | void sheepshaver_cpu::interrupt(uint32 e
660		#if EMUL_TIME_STATS
661		interrupt_time += (clock() - interrupt_start);
662		#endif
663	+
664	+	#if SAFE_INTERRUPT_PPC
665	+	depth--;
666	+	#endif
667		}
668
669		// Execute 68k routine
#	Line 833 | Line 1028 | void exit_emul_ppc(void)
1028		#endif
1029		}
1030
1031	+	#if PPC_ENABLE_JIT && PPC_REENTRANT_JIT
1032	+	// Initialize EmulOp trampolines
1033	+	void init_emul_op_trampolines(basic_dyngen & dg)
1034	+	{
1035	+	typedef void (*func_t)(dyngen_cpu_base, uint32);
1036	+	func_t func;
1037	+
1038	+	// EmulOp
1039	+	emul_op_trampoline = dg.gen_start();
1040	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_emul_op).ptr();
1041	+	dg.gen_invoke_CPU_T0(func);
1042	+	dg.gen_exec_return();
1043	+	dg.gen_end();
1044	+
1045	+	// NativeOp
1046	+	native_op_trampoline = dg.gen_start();
1047	+	func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
1048	+	dg.gen_invoke_CPU_T0(func);
1049	+	dg.gen_exec_return();
1050	+	dg.gen_end();
1051	+
1052	+	D(bug("EmulOp trampoline:   %p\n", emul_op_trampoline));
1053	+	D(bug("NativeOp trampoline: %p\n", native_op_trampoline));
1054	+	}
1055	+	#endif
1056	+
1057		/*
1058		*  Emulation loop
1059		*/
#	Line 879 | Line 1100 | void sheepshaver_cpu::handle_interrupt(v
1100		if (InterruptFlags == 0)
1101		return;
1102
1103	+	// Current interrupt nest level
1104	+	static int interrupt_depth = 0;
1105	+	++interrupt_depth;
1106	+
1107		// Disable MacOS stack sniffer
1108		WriteMacInt32(0x110, 0);
1109
#	Line 895 | Line 1120 | void sheepshaver_cpu::handle_interrupt(v
1120		case MODE_NATIVE:
1121		// 68k emulator inactive, in nanokernel?
1122		assert(current_cpu == main_cpu);
1123	<	if (gpr(1) != KernelDataAddr) {
1123	>	if (gpr(1) != KernelDataAddr && interrupt_depth == 1) {
1124	>	interrupt_context ctx(this, "PowerPC mode");
1125	>
1126		// Prepare for 68k interrupt level 1
1127		WriteMacInt16(tswap32(kernel_data->v[0x67c >> 2]), 1);
1128		WriteMacInt32(tswap32(kernel_data->v[0x658 >> 2]) + 0xdc,
#	Line 918 | Line 1145 | void sheepshaver_cpu::handle_interrupt(v
1145		case MODE_EMUL_OP:
1146		// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
1147		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1148	+	interrupt_context ctx(this, "68k mode");
1149		#if 1
1150		// Execute full 68k interrupt routine
1151		M68kRegisters r;
#	Line 947 | Line 1175 | void sheepshaver_cpu::handle_interrupt(v
1175		break;
1176		#endif
1177		}
1178	+
1179	+	// We are done with this interrupt
1180	+	--interrupt_depth;
1181		}
1182
1183		static void get_resource(void);
#	Line 955 | Line 1186 | static void get_ind_resource(void);
1186		static void get_1_ind_resource(void);
1187		static void r_get_resource(void);
1188
1189	<	#define GPR(REG) current_cpu->gpr(REG)
1190	<
960	<	static void NativeOp(int selector)
1189	>	// Execute NATIVE_OP routine
1190	>	void sheepshaver_cpu::execute_native_op(uint32 selector)
1191		{
1192		#if EMUL_TIME_STATS
1193		native_exec_count++;
#	Line 975 | Line 1205 | static void NativeOp(int selector)
1205		VideoVBL();
1206		break;
1207		case NATIVE_VIDEO_DO_DRIVER_IO:
1208	<	GPR(3) = (int32)(int16)VideoDoDriverIO((void *)GPR(3), (void *)GPR(4),
1209	<	(void *)GPR(5), GPR(6), GPR(7));
1208	>	gpr(3) = (int32)(int16)VideoDoDriverIO((void *)gpr(3), (void *)gpr(4),
1209	>	(void *)gpr(5), gpr(6), gpr(7));
1210		break;
1211		#ifdef WORDS_BIGENDIAN
1212		case NATIVE_ETHER_IRQ:
1213		EtherIRQ();
1214		break;
1215		case NATIVE_ETHER_INIT:
1216	<	GPR(3) = InitStreamModule((void *)GPR(3));
1216	>	gpr(3) = InitStreamModule((void *)gpr(3));
1217		break;
1218		case NATIVE_ETHER_TERM:
1219		TerminateStreamModule();
1220		break;
1221		case NATIVE_ETHER_OPEN:
1222	<	GPR(3) = ether_open((queue_t *)GPR(3), (void *)GPR(4), GPR(5), GPR(6), (void*)GPR(7));
1222	>	gpr(3) = ether_open((queue_t *)gpr(3), (void *)gpr(4), gpr(5), gpr(6), (void*)gpr(7));
1223		break;
1224		case NATIVE_ETHER_CLOSE:
1225	<	GPR(3) = ether_close((queue_t *)GPR(3), GPR(4), (void *)GPR(5));
1225	>	gpr(3) = ether_close((queue_t *)gpr(3), gpr(4), (void *)gpr(5));
1226		break;
1227		case NATIVE_ETHER_WPUT:
1228	<	GPR(3) = ether_wput((queue_t *)GPR(3), (mblk_t *)GPR(4));
1228	>	gpr(3) = ether_wput((queue_t *)gpr(3), (mblk_t *)gpr(4));
1229		break;
1230		case NATIVE_ETHER_RSRV:
1231	<	GPR(3) = ether_rsrv((queue_t *)GPR(3));
1231	>	gpr(3) = ether_rsrv((queue_t *)gpr(3));
1232		break;
1233		#else
1234		case NATIVE_ETHER_INIT:
1235		// FIXME: needs more complicated thunks
1236	<	GPR(3) = false;
1236	>	gpr(3) = false;
1237		break;
1238		#endif
1239		case NATIVE_SYNC_HOOK:
1240	<	GPR(3) = NQD_sync_hook(GPR(3));
1240	>	gpr(3) = NQD_sync_hook(gpr(3));
1241		break;
1242		case NATIVE_BITBLT_HOOK:
1243	<	GPR(3) = NQD_bitblt_hook(GPR(3));
1243	>	gpr(3) = NQD_bitblt_hook(gpr(3));
1244		break;
1245		case NATIVE_BITBLT:
1246	<	NQD_bitblt(GPR(3));
1246	>	NQD_bitblt(gpr(3));
1247		break;
1248		case NATIVE_FILLRECT_HOOK:
1249	<	GPR(3) = NQD_fillrect_hook(GPR(3));
1249	>	gpr(3) = NQD_fillrect_hook(gpr(3));
1250		break;
1251		case NATIVE_INVRECT:
1252	<	NQD_invrect(GPR(3));
1252	>	NQD_invrect(gpr(3));
1253		break;
1254		case NATIVE_FILLRECT:
1255	<	NQD_fillrect(GPR(3));
1255	>	NQD_fillrect(gpr(3));
1256		break;
1257		case NATIVE_SERIAL_NOTHING:
1258		case NATIVE_SERIAL_OPEN:
#	Line 1041 | Line 1271 | static void NativeOp(int selector)
1271		SerialStatus,
1272		SerialClose
1273		};
1274	<	GPR(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](GPR(3), GPR(4));
1274	>	gpr(3) = serial_callbacks[selector - NATIVE_SERIAL_NOTHING](gpr(3), gpr(4));
1275		break;
1276		}
1277		case NATIVE_GET_RESOURCE:
#	Line 1051 | Line 1281 | static void NativeOp(int selector)
1281		case NATIVE_R_GET_RESOURCE: {
1282		typedef void (*GetResourceCallback)(void);
1283		static const GetResourceCallback get_resource_callbacks[] = {
1284	<	get_resource,
1285	<	get_1_resource,
1286	<	get_ind_resource,
1287	<	get_1_ind_resource,
1288	<	r_get_resource
1284	>	::get_resource,
1285	>	::get_1_resource,
1286	>	::get_ind_resource,
1287	>	::get_1_ind_resource,
1288	>	::r_get_resource
1289		};
1290		get_resource_callbacks[selector - NATIVE_GET_RESOURCE]();
1291		break;
#	Line 1067 | Line 1297 | static void NativeOp(int selector)
1297		EnableInterrupt();
1298		break;
1299		case NATIVE_MAKE_EXECUTABLE:
1300	<	MakeExecutable(0, (void *)GPR(4), GPR(5));
1300	>	MakeExecutable(0, (void *)gpr(4), gpr(5));
1301		break;
1302		case NATIVE_CHECK_LOAD_INVOC:
1303	<	check_load_invoc(GPR(3), GPR(4), GPR(5));
1303	>	check_load_invoc(gpr(3), gpr(4), gpr(5));
1304		break;
1305		default:
1306		printf("FATAL: NATIVE_OP called with bogus selector %d\n", selector);

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