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root/cebix/SheepShaver/src/Unix/main_unix.cpp

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.14 by gbeauche, 2003-11-10T16:05:52Z vs.
Revision 1.96 by asvitkine, 2011-12-28T23:30:25Z

#	Line 1 | Line 1
1		/*
2		*  main_unix.cpp - Emulation core, Unix implementation
3		*
4	<	*  SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
4	>	*  SheepShaver (C) 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 27 | Line 27
27		*  is slightly different from the SysV ABI used by Linux:
28		*    - Stack frames are different (e.g. LR is stored in 8(r1) under
29		*      MacOS, but in 4(r1) under Linux)
30	<	*    - There is no TOC under Linux; r2 is free for the user
30	>	*    - There is a pointer to Thread Local Storage (TLS) under Linux with
31	>	*      recent enough glibc. This is r2 in 32-bit mode and r13 in
32	>	*      64-bit mode (PowerOpen/AIX ABI)
33		*    - r13 is used as a small data pointer under Linux (but appearently
34		*      it is not used this way? To be sure, we specify -msdata=none
35		*      in the Makefile)
36	<	*    - As there is no TOC, there are also no TVECTs under Linux;
37	<	*      function pointers point directly to the function code
36	>	*    - There are no TVECTs under Linux; function pointers point
37	>	*      directly to the function code
38		*  The Execute*() functions have to account for this. Additionally, we
39		*  cannot simply call MacOS functions by getting their TVECT and jumping
40		*  to it. Such calls are done via the call_macos*() functions in
#	Line 65 | Line 67
67		*  ExecutePPC (or any function that might cause a mode switch). The signal
68		*  stack is restored before exiting the SIGUSR2 handler.
69		*
70	+	*  Note that POSIX standard says you can't modify the alternate
71	+	*  signal stack while the process is executing on it. There is a
72	+	*  hackaround though: we install a trampoline SIGUSR2 handler that
73	+	*  sets up an alternate stack itself and calls the real handler.
74	+	*  Then, when we call sigaltstack() there, we no longer get an EPERM,
75	+	*  i.e. it now works.
76	+	*
77		*  TODO:
78		*    check if SIGSEGV handler works for all registers (including FP!)
79		*/
#	Line 80 | Line 89
89		#include <sys/mman.h>
90		#include <sys/ipc.h>
91		#include <sys/shm.h>
92	+	#include <sys/stat.h>
93		#include <signal.h>
94
95		#include "sysdeps.h"
#	Line 93 | Line 103
103		#include "xpram.h"
104		#include "timer.h"
105		#include "adb.h"
96	–	#include "sony.h"
97	–	#include "disk.h"
98	–	#include "cdrom.h"
99	–	#include "scsi.h"
106		#include "video.h"
101	–	#include "audio.h"
102	–	#include "ether.h"
103	–	#include "serial.h"
104	–	#include "clip.h"
105	–	#include "extfs.h"
107		#include "sys.h"
108		#include "macos_util.h"
109		#include "rom_patches.h"
110		#include "user_strings.h"
111		#include "vm_alloc.h"
112		#include "sigsegv.h"
113	+	#include "sigregs.h"
114	+	#include "rpc.h"
115
116		#define DEBUG 0
117		#include "debug.h"
118
119
120	+	#ifdef HAVE_DIRENT_H
121	+	#include <dirent.h>
122	+	#endif
123	+
124	+	#ifdef USE_SDL
125	+	#include <SDL.h>
126	+	#endif
127	+
128	+	#ifndef USE_SDL_VIDEO
129		#include <X11/Xlib.h>
130	+	#endif
131
132		#ifdef ENABLE_GTK
133		#include <gtk/gtk.h>
#	Line 123 | Line 136
136		#ifdef ENABLE_XF86_DGA
137		#include <X11/Xlib.h>
138		#include <X11/Xutil.h>
139	<	#include <X11/extensions/xf86dga.h>
139	>	#include <X11/extensions/Xxf86dga.h>
140		#endif
141
142		#ifdef ENABLE_MON
#	Line 131 | Line 144
144		#endif
145
146
147	+	// Enable emulation of unaligned lmw/stmw?
148	+	#define EMULATE_UNALIGNED_LOADSTORE_MULTIPLE 1
149	+
150		// Enable Execute68k() safety checks?
151		#define SAFE_EXEC_68K 0
152
#	Line 145 | Line 161
161		const char ROM_FILE_NAME[] = "ROM";
162		const char ROM_FILE_NAME2[] = "Mac OS ROM";
163
164	<	const uint32 RAM_BASE = 0x20000000;                     // Base address of RAM
165	<	const uint32 SIG_STACK_SIZE = 0x10000;          // Size of signal stack
166	<
167	<
168	<	#if !EMULATED_PPC
169	<	// Structure in which registers are saved in a signal handler;
170	<	// sigcontext->regs points to it
155	<	// (see arch/ppc/kernel/signal.c)
156	<	typedef struct {
157	<	uint32 u[4];
158	<	} __attribute((aligned(16))) vector128;
159	<	#include <linux/elf.h>
160	<
161	<	struct sigregs {
162	<	elf_gregset_t   gp_regs;                                // Identical to pt_regs
163	<	double                  fp_regs[ELF_NFPREG];    // f0..f31 and fpsrc
164	<	//more (uninteresting) stuff following here
165	<	};
164	>	#if !REAL_ADDRESSING
165	>	// FIXME: needs to be >= 0x04000000
166	>	const uintptr RAM_BASE = 0x10000000;            // Base address of RAM
167	>	#endif
168	>	const uintptr ROM_BASE = 0x40800000;            // Base address of ROM
169	>	#if REAL_ADDRESSING
170	>	const uint32 ROM_ALIGNMENT = 0x100000;          // ROM must be aligned to a 1MB boundary
171		#endif
172	+	const uint32 SIG_STACK_SIZE = 0x10000;          // Size of signal stack
173
174
175		// Global variables (exported)
176		#if !EMULATED_PPC
177	<	void *TOC;                              // Small data pointer (r13)
177	>	void *TOC = NULL;               // Pointer to Thread Local Storage (r2)
178	>	void *R13 = NULL;               // Pointer to .sdata section (r13 under Linux)
179		#endif
180		uint32 RAMBase;                 // Base address of Mac RAM
181		uint32 RAMSize;                 // Size of Mac RAM
182	<	uint32 SheepStack1Base; // SheepShaver first alternate stack base
176	<	uint32 SheepStack2Base; // SheepShaver second alternate stack base
177	<	uint32 SheepThunksBase; // SheepShaver thunks base
182	>	uint32 ROMBase;                 // Base address of Mac ROM
183		uint32 KernelDataAddr;  // Address of Kernel Data
184		uint32 BootGlobsAddr;   // Address of BootGlobs structure at top of Mac RAM
185	+	uint32 DRCacheAddr;             // Address of DR Cache
186		uint32 PVR;                             // Theoretical PVR
187		int64 CPUClockSpeed;    // Processor clock speed (Hz)
188		int64 BusClockSpeed;    // Bus clock speed (Hz)
189	+	int64 TimebaseSpeed;    // Timebase clock speed (Hz)
190	+	uint8 *RAMBaseHost;             // Base address of Mac RAM (host address space)
191	+	uint8 *ROMBaseHost;             // Base address of Mac ROM (host address space)
192
193
194		// Global variables
195	+	#ifndef USE_SDL_VIDEO
196		char *x_display_name = NULL;                            // X11 display name
197		Display *x_display = NULL;                                      // X11 display handle
198	+	#ifdef X11_LOCK_TYPE
199	+	X11_LOCK_TYPE x_display_lock = X11_LOCK_INIT; // X11 display lock
200	+	#endif
201	+	#endif
202
203		static int zero_fd = 0;                                         // FD of /dev/zero
190	–	static bool sheep_area_mapped = false;          // Flag: SheepShaver data area mmap()ed
204		static bool lm_area_mapped = false;                     // Flag: Low Memory area mmap()ped
205		static int kernel_area = -1;                            // SHM ID of Kernel Data area
206		static bool rom_area_mapped = false;            // Flag: Mac ROM mmap()ped
207		static bool ram_area_mapped = false;            // Flag: Mac RAM mmap()ped
208	+	static bool dr_cache_area_mapped = false;       // Flag: Mac DR Cache mmap()ped
209	+	static bool dr_emulator_area_mapped = false;// Flag: Mac DR Emulator mmap()ped
210		static KernelData *kernel_data;                         // Pointer to Kernel Data
211		static EmulatorData *emulator_data;
212
213		static uint8 last_xpram[XPRAM_SIZE];            // Buffer for monitoring XPRAM changes
214
215		static bool nvram_thread_active = false;        // Flag: NVRAM watchdog installed
216	+	static volatile bool nvram_thread_cancel;       // Flag: Cancel NVRAM thread
217		static pthread_t nvram_thread;                          // NVRAM watchdog
218		static bool tick_thread_active = false;         // Flag: MacOS thread installed
219	+	static volatile bool tick_thread_cancel;        // Flag: Cancel 60Hz thread
220		static pthread_t tick_thread;                           // 60Hz thread
221		static pthread_t emul_thread;                           // MacOS thread
222
#	Line 207 | Line 224 | static bool ready_for_signals = false;
224		static int64 num_segv = 0;                                      // Number of handled SEGV signals
225
226		static struct sigaction sigusr2_action;         // Interrupt signal (of emulator thread)
227	<	#if !EMULATED_PPC
227	>	#if EMULATED_PPC
228	>	static uintptr sig_stack = 0;                           // Stack for PowerPC interrupt routine
229	>	#else
230		static struct sigaction sigsegv_action;         // Data access exception signal (of emulator thread)
231		static struct sigaction sigill_action;          // Illegal instruction signal (of emulator thread)
232	<	static void *sig_stack = NULL;                          // Stack for signal handlers
233	<	static void *extra_stack = NULL;                        // Stack for SIGSEGV inside interrupt handler
232	>	static stack_t sig_stack;                                       // Stack for signal handlers
233	>	static stack_t extra_stack;                                     // Stack for SIGSEGV inside interrupt handler
234		static bool emul_thread_fatal = false;          // Flag: MacOS thread crashed, tick thread shall dump debug output
235		static sigregs sigsegv_regs;                            // Register dump when crashed
236	+	static const char *crash_reason = NULL;         // Reason of the crash (SIGSEGV, SIGBUS, SIGILL)
237		#endif
238
239	+	static rpc_connection_t *gui_connection = NULL; // RPC connection to the GUI
240	+	static const char *gui_connection_path = NULL;  // GUI connection identifier
241	+
242	+	uint32  SheepMem::page_size;                            // Size of a native page
243	+	uintptr SheepMem::zero_page = 0;                        // Address of ro page filled in with zeros
244	+	uintptr SheepMem::base = 0x60000000;            // Address of SheepShaver data
245	+	uintptr SheepMem::proc;                                         // Bottom address of SheepShave procedures
246	+	uintptr SheepMem::data;                                         // Top of SheepShaver data (stack like storage)
247	+
248
249		// Prototypes
250	+	static bool kernel_data_init(void);
251	+	static void kernel_data_exit(void);
252		static void Quit(void);
253		static void *emul_func(void *arg);
254		static void *nvram_func(void *arg);
255		static void *tick_func(void *arg);
256		#if EMULATED_PPC
226	–	static void sigusr2_handler(int sig);
257		extern void emul_ppc(uint32 start);
258		extern void init_emul_ppc(void);
259		extern void exit_emul_ppc(void);
260	+	sigsegv_return_t sigsegv_handler(sigsegv_info_t *sip);
261		#else
262	<	static void sigusr2_handler(int sig, sigcontext_struct *sc);
263	<	static void sigsegv_handler(int sig, sigcontext_struct *sc);
264	<	static void sigill_handler(int sig, sigcontext_struct *sc);
262	>	extern "C" void sigusr2_handler_init(int sig, siginfo_t *sip, void *scp);
263	>	extern "C" void sigusr2_handler(int sig, siginfo_t *sip, void *scp);
264	>	static void sigsegv_handler(int sig, siginfo_t *sip, void *scp);
265	>	static void sigill_handler(int sig, siginfo_t *sip, void *scp);
266		#endif
267
268
269		// From asm_linux.S
270		#if !EMULATED_PPC
239	–	extern "C" void *get_toc(void);
271		extern "C" void *get_sp(void);
272	<	extern "C" void flush_icache_range(void *start, void *end);
272	>	extern "C" void *get_r2(void);
273	>	extern "C" void set_r2(void *);
274	>	extern "C" void *get_r13(void);
275	>	extern "C" void set_r13(void *);
276	>	extern "C" void flush_icache_range(uint32 start, uint32 end);
277		extern "C" void jump_to_rom(uint32 entry, uint32 context);
278		extern "C" void quit_emulator(void);
279		extern "C" void execute_68k(uint32 pc, M68kRegisters *r);
#	Line 252 | Line 287 | extern void paranoia_check(void);
287
288		#if EMULATED_PPC
289		/*
290	+	*  Return signal stack base
291	+	*/
292	+
293	+	uintptr SignalStackBase(void)
294	+	{
295	+	return sig_stack + SIG_STACK_SIZE;
296	+	}
297	+
298	+
299	+	/*
300		*  Atomic operations
301		*/
302
#	Line 292 | Line 337 | int atomic_or(int *var, int v)
337
338
339		/*
340	+	*  Memory management helpers
341	+	*/
342	+
343	+	static inline uint8 *vm_mac_acquire(uint32 size)
344	+	{
345	+	return (uint8 *)vm_acquire(size);
346	+	}
347	+
348	+	static inline int vm_mac_acquire_fixed(uint32 addr, uint32 size)
349	+	{
350	+	return vm_acquire_fixed(Mac2HostAddr(addr), size);
351	+	}
352	+
353	+	static inline int vm_mac_release(uint32 addr, uint32 size)
354	+	{
355	+	return vm_release(Mac2HostAddr(addr), size);
356	+	}
357	+
358	+
359	+	/*
360		*  Main program
361		*/
362
#	Line 304 | Line 369 | static void usage(const char *prg_name)
369		exit(0);
370		}
371
372	<	int main(int argc, char **argv)
372	>	static bool valid_vmdir(const char *path)
373		{
374	<	char str[256];
375	<	uint32 *boot_globs;
376	<	int16 i16;
377	<	int rom_fd;
374	>	const int suffix_len = sizeof(".sheepvm") - 1;
375	>	int len = strlen(path);
376	>	if (len && path[len - 1] == '/') // to support both ".sheepvm" and ".sheepvm/"
377	>	len--;
378	>	if (len > suffix_len && !strncmp(path + len - suffix_len, ".sheepvm", suffix_len)) {
379	>	struct stat d;
380	>	if (!stat(path, &d) && S_ISDIR(d.st_mode)) {
381	>	return true;
382	>	}
383	>	}
384	>	return false;
385	>	}
386	>
387	>	static void get_system_info(void)
388	>	{
389	>	#if !EMULATED_PPC
390		FILE *proc_file;
391	<	const char *rom_path;
391	>	#endif
392	>
393	>	PVR = 0x00040000;                       // Default: 604
394	>	CPUClockSpeed = 100000000;      // Default: 100MHz
395	>	BusClockSpeed = 100000000;      // Default: 100MHz
396	>	TimebaseSpeed =  25000000;      // Default:  25MHz
397	>
398	>	#if EMULATED_PPC
399	>	PVR = 0x000c0000;                       // Default: 7400 (with AltiVec)
400	>	#elif defined(__APPLE__) && defined(__MACH__)
401	>	proc_file = popen("ioreg -c IOPlatformDevice", "r");
402	>	if (proc_file) {
403	>	char line[256];
404	>	bool powerpc_node = false;
405	>	while (fgets(line, sizeof(line) - 1, proc_file)) {
406	>	// Read line
407	>	int len = strlen(line);
408	>	if (len == 0)
409	>	continue;
410	>	line[len - 1] = 0;
411	>
412	>	// Parse line
413	>	if (strstr(line, "o PowerPC,"))
414	>	powerpc_node = true;
415	>	else if (powerpc_node) {
416	>	uint32 value;
417	>	char head[256];
418	>	if (sscanf(line, "%[ |]\"cpu-version\" = <%x>", head, &value) == 2)
419	>	PVR = value;
420	>	else if (sscanf(line, "%[ |]\"clock-frequency\" = <%x>", head, &value) == 2)
421	>	CPUClockSpeed = value;
422	>	else if (sscanf(line, "%[ |]\"bus-frequency\" = <%x>", head, &value) == 2)
423	>	BusClockSpeed = value;
424	>	else if (sscanf(line, "%[ |]\"timebase-frequency\" = <%x>", head, &value) == 2)
425	>	TimebaseSpeed = value;
426	>	else if (strchr(line, '}'))
427	>	powerpc_node = false;
428	>	}
429	>	}
430	>	fclose(proc_file);
431	>	} else {
432	>	sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
433	>	WarningAlert(str);
434	>	}
435	>	#else
436	>	proc_file = fopen("/proc/cpuinfo", "r");
437	>	if (proc_file) {
438	>	// CPU specs from Linux kernel
439	>	// TODO: make it more generic with features (e.g. AltiVec) and
440	>	// cache information and friends for NameRegistry
441	>	static const struct {
442	>	uint32 pvr_mask;
443	>	uint32 pvr_value;
444	>	const char *cpu_name;
445	>	}
446	>	cpu_specs[] = {
447	>	{ 0xffff0000, 0x00010000, "601" },
448	>	{ 0xffff0000, 0x00030000, "603" },
449	>	{ 0xffff0000, 0x00060000, "603e" },
450	>	{ 0xffff0000, 0x00070000, "603ev" },
451	>	{ 0xffff0000, 0x00040000, "604" },
452	>	{ 0xfffff000, 0x00090000, "604e" },
453	>	{ 0xffff0000, 0x00090000, "604r" },
454	>	{ 0xffff0000, 0x000a0000, "604ev" },
455	>	{ 0xffffffff, 0x00084202, "740/750" },
456	>	{ 0xfffff000, 0x00083000, "745/755" },
457	>	{ 0xfffffff0, 0x00080100, "750CX" },
458	>	{ 0xfffffff0, 0x00082200, "750CX" },
459	>	{ 0xfffffff0, 0x00082210, "750CXe" },
460	>	{ 0xffffff00, 0x70000100, "750FX" },
461	>	{ 0xffffffff, 0x70000200, "750FX" },
462	>	{ 0xffff0000, 0x70000000, "750FX" },
463	>	{ 0xffff0000, 0x70020000, "750GX" },
464	>	{ 0xffff0000, 0x00080000, "740/750" },
465	>	{ 0xffffffff, 0x000c1101, "7400 (1.1)" },
466	>	{ 0xffff0000, 0x000c0000, "7400" },
467	>	{ 0xffff0000, 0x800c0000, "7410" },
468	>	{ 0xffffffff, 0x80000200, "7450" },
469	>	{ 0xffffffff, 0x80000201, "7450" },
470	>	{ 0xffff0000, 0x80000000, "7450" },
471	>	{ 0xffffff00, 0x80010100, "7455" },
472	>	{ 0xffffffff, 0x80010200, "7455" },
473	>	{ 0xffff0000, 0x80010000, "7455" },
474	>	{ 0xffff0000, 0x80020000, "7457" },
475	>	{ 0xffff0000, 0x80030000, "7447A" },
476	>	{ 0xffff0000, 0x80040000, "7448" },
477	>	{ 0x7fff0000, 0x00810000, "82xx" },
478	>	{ 0x7fff0000, 0x00820000, "8280" },
479	>	{ 0xffff0000, 0x00400000, "Power3 (630)" },
480	>	{ 0xffff0000, 0x00410000, "Power3 (630+)" },
481	>	{ 0xffff0000, 0x00360000, "I-star" },
482	>	{ 0xffff0000, 0x00370000, "S-star" },
483	>	{ 0xffff0000, 0x00350000, "Power4" },
484	>	{ 0xffff0000, 0x00390000, "PPC970" },
485	>	{ 0xffff0000, 0x003c0000, "PPC970FX" },
486	>	{ 0xffff0000, 0x00440000, "PPC970MP" },
487	>	{ 0xffff0000, 0x003a0000, "POWER5 (gr)" },
488	>	{ 0xffff0000, 0x003b0000, "POWER5+ (gs)" },
489	>	{ 0xffff0000, 0x003e0000, "POWER6" },
490	>	{ 0xffff0000, 0x00700000, "Cell Broadband Engine" },
491	>	{ 0x7fff0000, 0x00900000, "PA6T" },
492	>	{ 0, 0, 0 }
493	>	};
494	>
495	>	char line[256];
496	>	while(fgets(line, 255, proc_file)) {
497	>	// Read line
498	>	int len = strlen(line);
499	>	if (len == 0)
500	>	continue;
501	>	line[len-1] = 0;
502	>
503	>	// Parse line
504	>	int i;
505	>	float f;
506	>	char value[256];
507	>	if (sscanf(line, "cpu : %[^,]", value) == 1) {
508	>	// Search by name
509	>	const char *cpu_name = NULL;
510	>	for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
511	>	if (strcmp(cpu_specs[i].cpu_name, value) == 0) {
512	>	cpu_name = cpu_specs[i].cpu_name;
513	>	PVR = cpu_specs[i].pvr_value;
514	>	break;
515	>	}
516	>	}
517	>	if (cpu_name == NULL)
518	>	printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
519	>	else
520	>	printf("Found a PowerPC %s processor\n", cpu_name);
521	>	}
522	>	if (sscanf(line, "clock : %fMHz", &f) == 1)
523	>	CPUClockSpeed = BusClockSpeed = ((int64)f) * 1000000;
524	>	else if (sscanf(line, "clock : %dMHz", &i) == 1)
525	>	CPUClockSpeed = BusClockSpeed = i * 1000000;
526	>	}
527	>	fclose(proc_file);
528	>	} else {
529	>	sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
530	>	WarningAlert(str);
531	>	}
532	>
533	>	// Get actual bus frequency
534	>	proc_file = fopen("/proc/device-tree/clock-frequency", "r");
535	>	if (proc_file) {
536	>	union { uint8 b[4]; uint32 l; } value;
537	>	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
538	>	BusClockSpeed = value.l;
539	>	fclose(proc_file);
540	>	}
541	>
542	>	// Get actual timebase frequency
543	>	TimebaseSpeed = BusClockSpeed / 4;
544	>	DIR *cpus_dir;
545	>	if ((cpus_dir = opendir("/proc/device-tree/cpus")) != NULL) {
546	>	struct dirent *cpu_entry;
547	>	while ((cpu_entry = readdir(cpus_dir)) != NULL) {
548	>	if (strstr(cpu_entry->d_name, "PowerPC,") == cpu_entry->d_name) {
549	>	char timebase_freq_node[256];
550	>	sprintf(timebase_freq_node, "/proc/device-tree/cpus/%s/timebase-frequency", cpu_entry->d_name);
551	>	proc_file = fopen(timebase_freq_node, "r");
552	>	if (proc_file) {
553	>	union { uint8 b[4]; uint32 l; } value;
554	>	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
555	>	TimebaseSpeed = value.l;
556	>	fclose(proc_file);
557	>	}
558	>	}
559	>	}
560	>	closedir(cpus_dir);
561	>	}
562	>	#endif
563	>
564	>	// Remap any newer G4/G5 processor to plain G4 for compatibility
565	>	switch (PVR >> 16) {
566	>	case 0x8000:                            // 7450
567	>	case 0x8001:                            // 7455
568	>	case 0x8002:                            // 7457
569	>	case 0x8003:                            // 7447A
570	>	case 0x8004:                            // 7448
571	>	case 0x0039:                            //  970
572	>	case 0x003c:                            //  970FX
573	>	case 0x0044:                            //  970MP
574	>	PVR = 0x000c0000;               // 7400
575	>	break;
576	>	}
577	>	D(bug("PVR: %08x (assumed)\n", PVR));
578	>	}
579	>
580	>	static bool load_mac_rom(void)
581	>	{
582		uint32 rom_size, actual;
583		uint8 *rom_tmp;
584	<	time_t now, expire;
584	>	const char *rom_path = PrefsFindString("rom");
585	>	int rom_fd = open(rom_path && *rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
586	>	if (rom_fd < 0) {
587	>	rom_fd = open(ROM_FILE_NAME2, O_RDONLY);
588	>	if (rom_fd < 0) {
589	>	ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
590	>	return false;
591	>	}
592	>	}
593	>	printf("%s", GetString(STR_READING_ROM_FILE));
594	>	rom_size = lseek(rom_fd, 0, SEEK_END);
595	>	lseek(rom_fd, 0, SEEK_SET);
596	>	rom_tmp = new uint8[ROM_SIZE];
597	>	actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
598	>	close(rom_fd);
599	>
600	>	// Decode Mac ROM
601	>	if (!DecodeROM(rom_tmp, actual)) {
602	>	if (rom_size != 4*1024*1024) {
603	>	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
604	>	return false;
605	>	} else {
606	>	ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
607	>	return false;
608	>	}
609	>	}
610	>	delete[] rom_tmp;
611	>	return true;
612	>	}
613	>
614	>	static bool install_signal_handlers(void)
615	>	{
616	>	char str[256];
617	>	#if !EMULATED_PPC
618	>	// Create and install stacks for signal handlers
619	>	sig_stack.ss_sp = malloc(SIG_STACK_SIZE);
620	>	D(bug("Signal stack at %p\n", sig_stack.ss_sp));
621	>	if (sig_stack.ss_sp == NULL) {
622	>	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
623	>	return false;
624	>	}
625	>	sig_stack.ss_flags = 0;
626	>	sig_stack.ss_size = SIG_STACK_SIZE;
627	>	if (sigaltstack(&sig_stack, NULL) < 0) {
628	>	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
629	>	ErrorAlert(str);
630	>	return false;
631	>	}
632	>	extra_stack.ss_sp = malloc(SIG_STACK_SIZE);
633	>	D(bug("Extra stack at %p\n", extra_stack.ss_sp));
634	>	if (extra_stack.ss_sp == NULL) {
635	>	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
636	>	return false;
637	>	}
638	>	extra_stack.ss_flags = 0;
639	>	extra_stack.ss_size = SIG_STACK_SIZE;
640	>
641	>	// Install SIGSEGV and SIGBUS handlers
642	>	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
643	>	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
644	>	sigsegv_action.sa_sigaction = sigsegv_handler;
645	>	sigsegv_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
646	>	#ifdef HAVE_SIGNAL_SA_RESTORER
647	>	sigsegv_action.sa_restorer = NULL;
648	>	#endif
649	>	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
650	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
651	>	ErrorAlert(str);
652	>	return false;
653	>	}
654	>	if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
655	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGBUS", strerror(errno));
656	>	ErrorAlert(str);
657	>	return false;
658	>	}
659	>	#else
660	>	// Install SIGSEGV handler for CPU emulator
661	>	if (!sigsegv_install_handler(sigsegv_handler)) {
662	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
663	>	ErrorAlert(str);
664	>	return false;
665	>	}
666	>	#endif
667	>	return true;
668	>	}
669	>
670	>	int main(int argc, char **argv)
671	>	{
672	>	char str[256];
673	>	bool memory_mapped_from_zero, ram_rom_areas_contiguous;
674	>	const char *vmdir = NULL;
675	>
676	>	#ifdef USE_SDL_VIDEO
677	>	// Don't let SDL block the screensaver
678	>	setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", TRUE);
679	>
680	>	// Make SDL pass through command-clicks and option-clicks unaltered
681	>	setenv("SDL_HAS3BUTTONMOUSE", "1", TRUE);
682	>	#endif
683
684		// Initialize variables
685		RAMBase = 0;
#	Line 325 | Line 690 | int main(int argc, char **argv)
690		printf(" %s\n", GetString(STR_ABOUT_TEXT2));
691
692		#if !EMULATED_PPC
693	+	#ifdef SYSTEM_CLOBBERS_R2
694		// Get TOC pointer
695	<	TOC = get_toc();
695	>	TOC = get_r2();
696	>	#endif
697	>	#ifdef SYSTEM_CLOBBERS_R13
698	>	// Get r13 register
699	>	R13 = get_r13();
700		#endif
331	–
332	–	#ifdef ENABLE_GTK
333	–	// Init GTK
334	–	gtk_set_locale();
335	–	gtk_init(&argc, &argv);
701		#endif
337	–
338	–	// Read preferences
339	–	PrefsInit(argc, argv);
702
703		// Parse command line arguments
704		for (int i=1; i<argc; i++) {
705		if (strcmp(argv[i], "--help") == 0) {
706		usage(argv[0]);
707	+	#ifndef USE_SDL_VIDEO
708		} else if (strcmp(argv[i], "--display") == 0) {
709		i++;
710		if (i < argc)
711		x_display_name = strdup(argv[i]);
712	<	} else if (argv[i][0] == '-') {
712	>	#endif
713	>	} else if (strcmp(argv[i], "--gui-connection") == 0) {
714	>	argv[i++] = NULL;
715	>	if (i < argc) {
716	>	gui_connection_path = argv[i];
717	>	argv[i] = NULL;
718	>	}
719	>	} else if (valid_vmdir(argv[i])) {
720	>	vmdir = argv[i];
721	>	argv[i] = NULL;
722	>	printf("Using %s as vmdir.\n", vmdir);
723	>	if (chdir(vmdir)) {
724	>	printf("Failed to chdir to %s. Good bye.", vmdir);
725	>	exit(1);
726	>	}
727	>	break;
728	>	}
729	>	}
730	>
731	>	// Remove processed arguments
732	>	for (int i=1; i<argc; i++) {
733	>	int k;
734	>	for (k=i; k<argc; k++)
735	>	if (argv[k] != NULL)
736	>	break;
737	>	if (k > i) {
738	>	k -= i;
739	>	for (int j=i+k; j<argc; j++)
740	>	argv[j-k] = argv[j];
741	>	argc -= k;
742	>	}
743	>	}
744	>
745	>	// Connect to the external GUI
746	>	if (gui_connection_path) {
747	>	if ((gui_connection = rpc_init_client(gui_connection_path)) == NULL) {
748	>	fprintf(stderr, "Failed to initialize RPC client connection to the GUI\n");
749	>	return 1;
750	>	}
751	>	}
752	>
753	>	#ifdef ENABLE_GTK
754	>	if (!gui_connection) {
755	>	// Init GTK
756	>	gtk_set_locale();
757	>	gtk_init(&argc, &argv);
758	>	}
759	>	#endif
760	>
761	>	// Read preferences
762	>	PrefsInit(vmdir, argc, argv);
763	>
764	>	// Any command line arguments left?
765	>	for (int i=1; i<argc; i++) {
766	>	if (argv[i][0] == '-') {
767		fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
768		usage(argv[0]);
769		}
770		}
771
772	+	#ifdef USE_SDL
773	+	// Initialize SDL system
774	+	int sdl_flags = 0;
775	+	#ifdef USE_SDL_VIDEO
776	+	sdl_flags |= SDL_INIT_VIDEO;
777	+	#endif
778	+	#ifdef USE_SDL_AUDIO
779	+	sdl_flags |= SDL_INIT_AUDIO;
780	+	#endif
781	+	assert(sdl_flags != 0);
782	+	if (SDL_Init(sdl_flags) == -1) {
783	+	char str[256];
784	+	sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError());
785	+	ErrorAlert(str);
786	+	goto quit;
787	+	}
788	+	atexit(SDL_Quit);
789	+
790	+	// Don't let SDL catch SIGINT and SIGTERM signals
791	+	signal(SIGINT, SIG_DFL);
792	+	signal(SIGTERM, SIG_DFL);
793	+	#endif
794	+
795	+	#ifndef USE_SDL_VIDEO
796		// Open display
797		x_display = XOpenDisplay(x_display_name);
798		if (x_display == NULL) {
#	Line 365 | Line 806 | int main(int argc, char **argv)
806		// Fork out, so we can return from fullscreen mode when things get ugly
807		XF86DGAForkApp(DefaultScreen(x_display));
808		#endif
809	+	#endif
810
811		#ifdef ENABLE_MON
812		// Initialize mon
813		mon_init();
814		#endif
815
816	<	// Get system info
817	<	PVR = 0x00040000;                       // Default: 604
818	<	CPUClockSpeed = 100000000;      // Default: 100MHz
377	<	BusClockSpeed = 100000000;      // Default: 100MHz
378	<	#if !EMULATED_PPC
379	<	proc_file = fopen("/proc/cpuinfo", "r");
380	<	if (proc_file) {
381	<	char line[256];
382	<	while(fgets(line, 255, proc_file)) {
383	<	// Read line
384	<	int len = strlen(line);
385	<	if (len == 0)
386	<	continue;
387	<	line[len-1] = 0;
816	>	// Install signal handlers
817	>	if (!install_signal_handlers())
818	>	goto quit;
819
820	<	// Parse line
821	<	int i;
822	<	char value[256];
823	<	if (sscanf(line, "cpu : %s", value) == 1) {
824	<	if (strcmp(value, "601") == 0)
394	<	PVR = 0x00010000;
395	<	else if (strcmp(value, "603") == 0)
396	<	PVR = 0x00030000;
397	<	else if (strcmp(value, "604") == 0)
398	<	PVR = 0x00040000;
399	<	else if (strcmp(value, "603e") == 0)
400	<	PVR = 0x00060000;
401	<	else if (strcmp(value, "603ev") == 0)
402	<	PVR = 0x00070000;
403	<	else if (strcmp(value, "604e") == 0)
404	<	PVR = 0x00090000;
405	<	else if (strcmp(value, "604ev5") == 0)
406	<	PVR = 0x000a0000;
407	<	else if (strcmp(value, "750") == 0)
408	<	PVR = 0x00080000;
409	<	else if (strcmp(value, "821") == 0)
410	<	PVR = 0x00320000;
411	<	else if (strcmp(value, "860") == 0)
412	<	PVR = 0x00500000;
413	<	else
414	<	printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
415	<	}
416	<	if (sscanf(line, "clock : %dMHz", &i) == 1)
417	<	CPUClockSpeed = BusClockSpeed = i * 1000000;
418	<	}
419	<	fclose(proc_file);
420	<	} else {
421	<	sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
422	<	WarningAlert(str);
423	<	}
424	<	#endif
425	<	D(bug("PVR: %08x (assumed)\n", PVR));
820	>	// Initialize VM system
821	>	vm_init();
822	>
823	>	// Get system info
824	>	get_system_info();
825
826		// Init system routines
827		SysInit();
#	Line 445 | Line 844 | int main(int argc, char **argv)
844		goto quit;
845		}
846
448	–	// Create Low Memory area (0x0000..0x3000)
449	–	if (vm_acquire_fixed((char *)0, 0x3000) < 0) {
450	–	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
451	–	ErrorAlert(str);
452	–	goto quit;
453	–	}
454	–	lm_area_mapped = true;
455	–
847		// Create areas for Kernel Data
848	<	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
849	<	if (kernel_area == -1) {
850	<	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
848	>	if (!kernel_data_init())
849	>	goto quit;
850	>	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
851	>	emulator_data = &kernel_data->ed;
852	>	KernelDataAddr = KERNEL_DATA_BASE;
853	>	D(bug("Kernel Data at %p (%08x)\n", kernel_data, KERNEL_DATA_BASE));
854	>	D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed)));
855	>
856	>	// Create area for DR Cache
857	>	if (vm_mac_acquire_fixed(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
858	>	sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno));
859		ErrorAlert(str);
860		goto quit;
861		}
862	<	if (shmat(kernel_area, (void *)KERNEL_DATA_BASE, 0) < 0) {
863	<	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
862	>	dr_emulator_area_mapped = true;
863	>	if (vm_mac_acquire_fixed(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
864	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
865		ErrorAlert(str);
866		goto quit;
867		}
868	<	if (shmat(kernel_area, (void *)KERNEL_DATA2_BASE, 0) < 0) {
869	<	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
868	>	dr_cache_area_mapped = true;
869	>	#if !EMULATED_PPC
870	>	if (vm_protect((char *)DR_CACHE_BASE, DR_CACHE_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
871	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
872		ErrorAlert(str);
873		goto quit;
874		}
875	<	kernel_data = (KernelData *)0x68ffe000;
876	<	emulator_data = &kernel_data->ed;
877	<	KernelDataAddr = (uint32)kernel_data;
476	<	D(bug("Kernel Data at %p, Emulator Data at %p\n", kernel_data, emulator_data));
875	>	#endif
876	>	DRCacheAddr = DR_CACHE_BASE;
877	>	D(bug("DR Cache at %p\n", DRCacheAddr));
878
879		// Create area for SheepShaver data
880	<	if (vm_acquire_fixed((char *)SHEEP_BASE, SHEEP_SIZE) < 0) {
880	>	if (!SheepMem::Init()) {
881		sprintf(str, GetString(STR_SHEEP_MEM_MMAP_ERR), strerror(errno));
882		ErrorAlert(str);
883		goto quit;
884		}
885	<	SheepStack1Base = SHEEP_BASE + 0x10000;
485	<	SheepStack2Base = SheepStack1Base + 0x10000;
486	<	SheepThunksBase = SheepStack2Base + 0x1000;
487	<	sheep_area_mapped = true;
488	<
489	<	// Create area for Mac ROM
490	<	if (vm_acquire_fixed((char *)ROM_BASE, ROM_AREA_SIZE) < 0) {
491	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
492	<	ErrorAlert(str);
493	<	goto quit;
494	<	}
495	<	#if !EMULATED_PPC || defined(__powerpc__)
496	<	if (vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
497	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
498	<	ErrorAlert(str);
499	<	goto quit;
500	<	}
501	<	#endif
502	<	rom_area_mapped = true;
503	<	D(bug("ROM area at %08x\n", ROM_BASE));
504	<
885	>
886		// Create area for Mac RAM
887		RAMSize = PrefsFindInt32("ramsize");
888		if (RAMSize < 8*1024*1024) {
889		WarningAlert(GetString(STR_SMALL_RAM_WARN));
890		RAMSize = 8*1024*1024;
891		}
892	<
893	<	if (vm_acquire_fixed((char *)RAM_BASE, RAMSize) < 0) {
894	<	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
895	<	ErrorAlert(str);
896	<	goto quit;
892	>	memory_mapped_from_zero = false;
893	>	ram_rom_areas_contiguous = false;
894	>	#if REAL_ADDRESSING && HAVE_LINKER_SCRIPT
895	>	if (vm_mac_acquire_fixed(0, RAMSize) == 0) {
896	>	D(bug("Could allocate RAM from 0x0000\n"));
897	>	RAMBase = 0;
898	>	RAMBaseHost = Mac2HostAddr(RAMBase);
899	>	memory_mapped_from_zero = true;
900	>	}
901	>	#endif
902	>	if (!memory_mapped_from_zero) {
903	>	#ifndef PAGEZERO_HACK
904	>	// Create Low Memory area (0x0000..0x3000)
905	>	if (vm_mac_acquire_fixed(0, 0x3000) < 0) {
906	>	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
907	>	ErrorAlert(str);
908	>	goto quit;
909	>	}
910	>	lm_area_mapped = true;
911	>	#endif
912	>	#if REAL_ADDRESSING
913	>	// Allocate RAM at any address. Since ROM must be higher than RAM, allocate the RAM
914	>	// and ROM areas contiguously, plus a little extra to allow for ROM address alignment.
915	>	RAMBaseHost = vm_mac_acquire(RAMSize + ROM_AREA_SIZE + ROM_ALIGNMENT);
916	>	if (RAMBaseHost == VM_MAP_FAILED) {
917	>	sprintf(str, GetString(STR_RAM_ROM_MMAP_ERR), strerror(errno));
918	>	ErrorAlert(str);
919	>	goto quit;
920	>	}
921	>	RAMBase = Host2MacAddr(RAMBaseHost);
922	>	ROMBase = (RAMBase + RAMSize + ROM_ALIGNMENT -1) & -ROM_ALIGNMENT;
923	>	ROMBaseHost = Mac2HostAddr(ROMBase);
924	>	ram_rom_areas_contiguous = true;
925	>	#else
926	>	if (vm_mac_acquire_fixed(RAM_BASE, RAMSize) < 0) {
927	>	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
928	>	ErrorAlert(str);
929	>	goto quit;
930	>	}
931	>	RAMBase = RAM_BASE;
932	>	RAMBaseHost = Mac2HostAddr(RAMBase);
933	>	#endif
934		}
935		#if !EMULATED_PPC
936	<	if (vm_protect((char *)RAM_BASE, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
936	>	if (vm_protect(RAMBaseHost, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
937		sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
938		ErrorAlert(str);
939		goto quit;
940		}
941		#endif
524	–	RAMBase = RAM_BASE;
942		ram_area_mapped = true;
943	<	D(bug("RAM area at %08x\n", RAMBase));
943	>	D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase));
944
945	<	if (RAMBase > ROM_BASE) {
946	<	ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
945	>	if (RAMBase > KernelDataAddr) {
946	>	ErrorAlert(GetString(STR_RAM_AREA_TOO_HIGH_ERR));
947		goto quit;
948		}
532	–
533	–	// Load Mac ROM
534	–	rom_path = PrefsFindString("rom");
535	–	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
536	–	if (rom_fd < 0) {
537	–	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME2, O_RDONLY);
538	–	if (rom_fd < 0) {
539	–	ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
540	–	goto quit;
541	–	}
542	–	}
543	–	printf(GetString(STR_READING_ROM_FILE));
544	–	rom_size = lseek(rom_fd, 0, SEEK_END);
545	–	lseek(rom_fd, 0, SEEK_SET);
546	–	rom_tmp = new uint8[ROM_SIZE];
547	–	actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
548	–	close(rom_fd);
949
950	<	// Decode Mac ROM
951	<	if (!DecodeROM(rom_tmp, actual)) {
952	<	if (rom_size != 4*1024*1024) {
953	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
954	<	goto quit;
555	<	} else {
556	<	ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
950	>	// Create area for Mac ROM
951	>	if (!ram_rom_areas_contiguous) {
952	>	if (vm_mac_acquire_fixed(ROM_BASE, ROM_AREA_SIZE) < 0) {
953	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
954	>	ErrorAlert(str);
955		goto quit;
956		}
957	+	ROMBase = ROM_BASE;
958	+	ROMBaseHost = Mac2HostAddr(ROMBase);
959		}
960	<	delete[] rom_tmp;
961	<
962	<	// Load NVRAM
963	<	XPRAMInit();
964	<
965	<	// Set boot volume
966	<	i16 = PrefsFindInt32("bootdrive");
967	<	XPRAM[0x1378] = i16 >> 8;
968	<	XPRAM[0x1379] = i16 & 0xff;
569	<	i16 = PrefsFindInt32("bootdriver");
570	<	XPRAM[0x137a] = i16 >> 8;
571	<	XPRAM[0x137b] = i16 & 0xff;
572	<
573	<	// Create BootGlobs at top of Mac memory
574	<	memset((void *)(RAMBase + RAMSize - 4096), 0, 4096);
575	<	BootGlobsAddr = RAMBase + RAMSize - 0x1c;
576	<	boot_globs = (uint32 *)BootGlobsAddr;
577	<	boot_globs[-5] = htonl(RAMBase + RAMSize);      // MemTop
578	<	boot_globs[0] = htonl(RAMBase);                         // First RAM bank
579	<	boot_globs[1] = htonl(RAMSize);
580	<	boot_globs[2] = htonl((uint32)-1);                      // End of bank table
581	<
582	<	// Init drivers
583	<	SonyInit();
584	<	DiskInit();
585	<	CDROMInit();
586	<	SCSIInit();
587	<
588	<	// Init external file system
589	<	ExtFSInit();
590	<
591	<	// Init audio
592	<	AudioInit();
593	<
594	<	// Init network
595	<	EtherInit();
596	<
597	<	// Init serial ports
598	<	SerialInit();
599	<
600	<	// Init Time Manager
601	<	TimerInit();
960	>	#if !EMULATED_PPC
961	>	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
962	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
963	>	ErrorAlert(str);
964	>	goto quit;
965	>	}
966	>	#endif
967	>	rom_area_mapped = true;
968	>	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROMBase));
969
970	<	// Init clipboard
971	<	ClipInit();
970	>	if (RAMBase > ROMBase) {
971	>	ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
972	>	goto quit;
973	>	}
974
975	<	// Init video
976	<	if (!VideoInit())
975	>	// Load Mac ROM
976	>	if (!load_mac_rom())
977		goto quit;
978
979	<	// Install ROM patches
980	<	if (!PatchROM()) {
612	<	ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
979	>	// Initialize everything
980	>	if (!InitAll(vmdir))
981		goto quit;
982	<	}
982	>	D(bug("Initialization complete\n"));
983
984		// Clear caches (as we loaded and patched code) and write protect ROM
985		#if !EMULATED_PPC
986	<	MakeExecutable(0, (void *)ROM_BASE, ROM_AREA_SIZE);
986	>	flush_icache_range(ROMBase, ROMBase + ROM_AREA_SIZE);
987		#endif
988	<	vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
621	<
622	<	// Initialize Kernel Data
623	<	memset(kernel_data, 0, sizeof(KernelData));
624	<	if (ROMType == ROMTYPE_NEWWORLD) {
625	<	static uint32 of_dev_tree[4] = {0, 0, 0, 0};
626	<	static uint8 vector_lookup_tbl[128];
627	<	static uint8 vector_mask_tbl[64];
628	<	memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
629	<	memset(vector_lookup_tbl, 0, 128);
630	<	memset(vector_mask_tbl, 0, 64);
631	<	kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
632	<	kernel_data->v[0xb84 >> 2] = htonl((uint32)of_dev_tree);        // OF device tree base
633	<	kernel_data->v[0xb90 >> 2] = htonl((uint32)vector_lookup_tbl);
634	<	kernel_data->v[0xb94 >> 2] = htonl((uint32)vector_mask_tbl);
635	<	kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE);                           // OpenPIC base
636	<	kernel_data->v[0xbb0 >> 2] = htonl(0);                                          // ADB base
637	<	kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
638	<	kernel_data->v[0xc24 >> 2] = htonl(RAMSize);
639	<	kernel_data->v[0xc30 >> 2] = htonl(RAMSize);
640	<	kernel_data->v[0xc34 >> 2] = htonl(RAMSize);
641	<	kernel_data->v[0xc38 >> 2] = htonl(0x00010020);
642	<	kernel_data->v[0xc3c >> 2] = htonl(0x00200001);
643	<	kernel_data->v[0xc40 >> 2] = htonl(0x00010000);
644	<	kernel_data->v[0xc50 >> 2] = htonl(RAMBase);
645	<	kernel_data->v[0xc54 >> 2] = htonl(RAMSize);
646	<	kernel_data->v[0xf60 >> 2] = htonl(PVR);
647	<	kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed);
648	<	kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed);
649	<	kernel_data->v[0xf6c >> 2] = htonl(CPUClockSpeed);
650	<	} else {
651	<	kernel_data->v[0xc80 >> 2] = htonl(RAMSize);
652	<	kernel_data->v[0xc84 >> 2] = htonl(RAMSize);
653	<	kernel_data->v[0xc90 >> 2] = htonl(RAMSize);
654	<	kernel_data->v[0xc94 >> 2] = htonl(RAMSize);
655	<	kernel_data->v[0xc98 >> 2] = htonl(0x00010020);
656	<	kernel_data->v[0xc9c >> 2] = htonl(0x00200001);
657	<	kernel_data->v[0xca0 >> 2] = htonl(0x00010000);
658	<	kernel_data->v[0xcb0 >> 2] = htonl(RAMBase);
659	<	kernel_data->v[0xcb4 >> 2] = htonl(RAMSize);
660	<	kernel_data->v[0xf80 >> 2] = htonl(PVR);
661	<	kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed);
662	<	kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed);
663	<	kernel_data->v[0xf8c >> 2] = htonl(CPUClockSpeed);
664	<	}
665	<
666	<	// Initialize extra low memory
667	<	D(bug("Initializing Low Memory...\n"));
668	<	memset(NULL, 0, 0x3000);
669	<	WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h'));                  // Signature to detect SheepShaver
670	<	WriteMacInt32(XLM_KERNEL_DATA, (uint32)kernel_data);                    // For trap replacement routines
671	<	WriteMacInt32(XLM_PVR, PVR);                                                                    // Theoretical PVR
672	<	WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed);                                    // For DriverServicesLib patch
673	<	WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN);                // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
674	<	#if EMULATED_PPC
675	<	WriteMacInt32(XLM_ETHER_INIT, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_INIT));
676	<	WriteMacInt32(XLM_ETHER_TERM, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_TERM));
677	<	WriteMacInt32(XLM_ETHER_OPEN, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_OPEN));
678	<	WriteMacInt32(XLM_ETHER_CLOSE, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_CLOSE));
679	<	WriteMacInt32(XLM_ETHER_WPUT, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_WPUT));
680	<	WriteMacInt32(XLM_ETHER_RSRV, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_RSRV));
681	<	WriteMacInt32(XLM_VIDEO_DOIO, POWERPC_NATIVE_OP_FUNC(NATIVE_VIDEO_DO_DRIVER_IO));
682	<	#else
683	<	WriteMacInt32(XLM_TOC, (uint32)TOC);                                                    // TOC pointer of emulator
684	<	WriteMacInt32(XLM_ETHER_INIT, (uint32)InitStreamModule);                // DLPI ethernet driver functions
685	<	WriteMacInt32(XLM_ETHER_TERM, (uint32)TerminateStreamModule);
686	<	WriteMacInt32(XLM_ETHER_OPEN, (uint32)ether_open);
687	<	WriteMacInt32(XLM_ETHER_CLOSE, (uint32)ether_close);
688	<	WriteMacInt32(XLM_ETHER_WPUT, (uint32)ether_wput);
689	<	WriteMacInt32(XLM_ETHER_RSRV, (uint32)ether_rsrv);
690	<	WriteMacInt32(XLM_VIDEO_DOIO, (uint32)VideoDoDriverIO);
691	<	#endif
692	<	D(bug("Low Memory initialized\n"));
988	>	vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
989
990		// Start 60Hz thread
991	+	tick_thread_cancel = false;
992		tick_thread_active = (pthread_create(&tick_thread, NULL, tick_func, NULL) == 0);
993		D(bug("Tick thread installed (%ld)\n", tick_thread));
994
995		// Start NVRAM watchdog thread
996		memcpy(last_xpram, XPRAM, XPRAM_SIZE);
997	+	nvram_thread_cancel = false;
998		nvram_thread_active = (pthread_create(&nvram_thread, NULL, nvram_func, NULL) == 0);
999		D(bug("NVRAM thread installed (%ld)\n", nvram_thread));
1000
1001		#if !EMULATED_PPC
704	–	// Create and install stacks for signal handlers
705	–	sig_stack = malloc(SIG_STACK_SIZE);
706	–	D(bug("Signal stack at %p\n", sig_stack));
707	–	if (sig_stack == NULL) {
708	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
709	–	goto quit;
710	–	}
711	–	extra_stack = malloc(SIG_STACK_SIZE);
712	–	D(bug("Extra stack at %p\n", extra_stack));
713	–	if (extra_stack == NULL) {
714	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
715	–	goto quit;
716	–	}
717	–	struct sigaltstack new_stack;
718	–	new_stack.ss_sp = sig_stack;
719	–	new_stack.ss_flags = 0;
720	–	new_stack.ss_size = SIG_STACK_SIZE;
721	–	if (sigaltstack(&new_stack, NULL) < 0) {
722	–	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
723	–	ErrorAlert(str);
724	–	goto quit;
725	–	}
726	–	#endif
727	–
728	–	#if !EMULATED_PPC
729	–	// Install SIGSEGV handler
730	–	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
731	–	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
732	–	sigsegv_action.sa_handler = (__sighandler_t)sigsegv_handler;
733	–	sigsegv_action.sa_flags = SA_ONSTACK;
734	–	sigsegv_action.sa_restorer = NULL;
735	–	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
736	–	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
737	–	ErrorAlert(str);
738	–	goto quit;
739	–	}
740	–
1002		// Install SIGILL handler
1003		sigemptyset(&sigill_action.sa_mask);    // Block interrupts during ILL handling
1004		sigaddset(&sigill_action.sa_mask, SIGUSR2);
1005	<	sigill_action.sa_handler = (__sighandler_t)sigill_handler;
1006	<	sigill_action.sa_flags = SA_ONSTACK;
1005	>	sigill_action.sa_sigaction = sigill_handler;
1006	>	sigill_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
1007	>	#ifdef HAVE_SIGNAL_SA_RESTORER
1008		sigill_action.sa_restorer = NULL;
1009	+	#endif
1010		if (sigaction(SIGILL, &sigill_action, NULL) < 0) {
1011	<	sprintf(str, GetString(STR_SIGILL_INSTALL_ERR), strerror(errno));
1011	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGILL", strerror(errno));
1012		ErrorAlert(str);
1013		goto quit;
1014		}
1015		#endif
1016
1017	+	#if !EMULATED_PPC
1018		// Install interrupt signal handler
1019		sigemptyset(&sigusr2_action.sa_mask);
1020	<	sigusr2_action.sa_handler = (__sighandler_t)sigusr2_handler;
1021	<	sigusr2_action.sa_flags = 0;
1022	<	#if !EMULATED_PPC
759	<	sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART;
760	<	#endif
1020	>	sigusr2_action.sa_sigaction = sigusr2_handler_init;
1021	>	sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART | SA_SIGINFO;
1022	>	#ifdef HAVE_SIGNAL_SA_RESTORER
1023		sigusr2_action.sa_restorer = NULL;
1024	+	#endif
1025		if (sigaction(SIGUSR2, &sigusr2_action, NULL) < 0) {
1026	<	sprintf(str, GetString(STR_SIGUSR2_INSTALL_ERR), strerror(errno));
1026	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGUSR2", strerror(errno));
1027		ErrorAlert(str);
1028		goto quit;
1029		}
1030	+	#endif
1031
1032		// Get my thread ID and execute MacOS thread function
1033		emul_thread = pthread_self();
#	Line 789 | Line 1053 | static void Quit(void)
1053
1054		// Stop 60Hz thread
1055		if (tick_thread_active) {
1056	+	tick_thread_cancel = true;
1057		pthread_cancel(tick_thread);
1058		pthread_join(tick_thread, NULL);
1059		}
1060
1061		// Stop NVRAM watchdog thread
1062		if (nvram_thread_active) {
1063	+	nvram_thread_cancel = true;
1064		pthread_cancel(nvram_thread);
1065		pthread_join(nvram_thread, NULL);
1066		}
1067
1068		#if !EMULATED_PPC
1069	<	// Uninstall SIGSEGV handler
1069	>	// Uninstall SIGSEGV and SIGBUS handlers
1070		sigemptyset(&sigsegv_action.sa_mask);
1071		sigsegv_action.sa_handler = SIG_DFL;
1072		sigsegv_action.sa_flags = 0;
1073		sigaction(SIGSEGV, &sigsegv_action, NULL);
1074	+	sigaction(SIGBUS, &sigsegv_action, NULL);
1075
1076		// Uninstall SIGILL handler
1077		sigemptyset(&sigill_action.sa_mask);
1078		sigill_action.sa_handler = SIG_DFL;
1079		sigill_action.sa_flags = 0;
1080		sigaction(SIGILL, &sigill_action, NULL);
814	–	#endif
815	–
816	–	// Save NVRAM
817	–	XPRAMExit();
818	–
819	–	// Exit clipboard
820	–	ClipExit();
821	–
822	–	// Exit Time Manager
823	–	TimerExit();
824	–
825	–	// Exit serial
826	–	SerialExit();
827	–
828	–	// Exit network
829	–	EtherExit();
1081
1082	<	// Exit audio
1083	<	AudioExit();
1084	<
1085	<	// Exit video
1086	<	VideoExit();
1082	>	// Delete stacks for signal handlers
1083	>	if (sig_stack.ss_sp)
1084	>	free(sig_stack.ss_sp);
1085	>	if (extra_stack.ss_sp)
1086	>	free(extra_stack.ss_sp);
1087	>	#endif
1088
1089	<	// Exit external file system
1090	<	ExtFSExit();
1089	>	// Deinitialize everything
1090	>	ExitAll();
1091
1092	<	// Exit drivers
1093	<	SCSIExit();
842	<	CDROMExit();
843	<	DiskExit();
844	<	SonyExit();
1092	>	// Delete SheepShaver globals
1093	>	SheepMem::Exit();
1094
1095		// Delete RAM area
1096		if (ram_area_mapped)
1097	<	vm_release((char *)RAM_BASE, RAMSize);
1097	>	vm_mac_release(RAMBase, RAMSize);
1098
1099		// Delete ROM area
1100		if (rom_area_mapped)
1101	<	vm_release((char *)ROM_BASE, ROM_AREA_SIZE);
1101	>	vm_mac_release(ROMBase, ROM_AREA_SIZE);
1102	>
1103	>	// Delete DR cache areas
1104	>	if (dr_emulator_area_mapped)
1105	>	vm_mac_release(DR_EMULATOR_BASE, DR_EMULATOR_SIZE);
1106	>	if (dr_cache_area_mapped)
1107	>	vm_mac_release(DR_CACHE_BASE, DR_CACHE_SIZE);
1108
1109		// Delete Kernel Data area
1110	<	if (kernel_area >= 0) {
856	<	shmdt((void *)KERNEL_DATA_BASE);
857	<	shmdt((void *)KERNEL_DATA2_BASE);
858	<	shmctl(kernel_area, IPC_RMID, NULL);
859	<	}
1110	>	kernel_data_exit();
1111
1112		// Delete Low Memory area
1113		if (lm_area_mapped)
1114	<	munmap((char *)0x0000, 0x3000);
1114	>	vm_mac_release(0, 0x3000);
1115
1116		// Close /dev/zero
1117		if (zero_fd > 0)
#	Line 878 | Line 1129 | static void Quit(void)
1129		#endif
1130
1131		// Close X11 server connection
1132	+	#ifndef USE_SDL_VIDEO
1133		if (x_display)
1134		XCloseDisplay(x_display);
1135	+	#endif
1136	+
1137	+	// Notify GUI we are about to leave
1138	+	if (gui_connection) {
1139	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_EXIT, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
1140	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID);
1141	+	}
1142
1143		exit(0);
1144		}
1145
1146
1147		/*
1148	+	*  Initialize Kernel Data segments
1149	+	*/
1150	+
1151	+	static bool kernel_data_init(void)
1152	+	{
1153	+	char str[256];
1154	+	uint32 kernel_area_size = (KERNEL_AREA_SIZE + SHMLBA - 1) & -SHMLBA;
1155	+
1156	+	kernel_area = shmget(IPC_PRIVATE, kernel_area_size, 0600);
1157	+	if (kernel_area == -1) {
1158	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
1159	+	ErrorAlert(str);
1160	+	return false;
1161	+	}
1162	+	void *kernel_addr = Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA);
1163	+	if (shmat(kernel_area, kernel_addr, 0) != kernel_addr) {
1164	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
1165	+	ErrorAlert(str);
1166	+	return false;
1167	+	}
1168	+	kernel_addr = Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA);
1169	+	if (shmat(kernel_area, kernel_addr, 0) != kernel_addr) {
1170	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
1171	+	ErrorAlert(str);
1172	+	return false;
1173	+	}
1174	+	return true;
1175	+	}
1176	+
1177	+
1178	+	/*
1179	+	*  Deallocate Kernel Data segments
1180	+	*/
1181	+
1182	+	static void kernel_data_exit(void)
1183	+	{
1184	+	if (kernel_area >= 0) {
1185	+	shmdt(Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA));
1186	+	shmdt(Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA));
1187	+	shmctl(kernel_area, IPC_RMID, NULL);
1188	+	}
1189	+	}
1190	+
1191	+
1192	+	/*
1193		*  Jump into Mac ROM, start 680x0 emulator
1194		*/
1195
#	Line 913 | Line 1217 | static void *emul_func(void *arg)
1217		// Jump to ROM boot routine
1218		D(bug("Jumping to ROM\n"));
1219		#if EMULATED_PPC
1220	<	jump_to_rom(ROM_BASE + 0x310000);
1220	>	jump_to_rom(ROMBase + 0x310000);
1221		#else
1222	<	jump_to_rom(ROM_BASE + 0x310000, (uint32)emulator_data);
1222	>	jump_to_rom(ROMBase + 0x310000, (uint32)emulator_data);
1223		#endif
1224		D(bug("Returned from ROM\n"));
1225
#	Line 954 | Line 1258 | void Execute68kTrap(uint16 trap, M68kReg
1258		uint16 proc[2] = {trap, M68K_RTS};
1259		Execute68k((uint32)proc, r);
1260		}
957	–
958	–
959	–	/*
960	–	*  Execute PPC code from EMUL_OP routine (real mode switch)
961	–	*/
962	–
963	–	void ExecutePPC(void (*func)())
964	–	{
965	–	uint32 tvect[2] = {(uint32)func, 0};    // Fake TVECT
966	–	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
967	–	M68kRegisters r;
968	–	Execute68k((uint32)&desc, &r);
969	–	}
1261		#endif
1262
1263
#	Line 985 | Line 1276 | void QuitEmulator(void)
1276
1277
1278		/*
988	–	*  Pause/resume emulator
989	–	*/
990	–
991	–	void PauseEmulator(void)
992	–	{
993	–	pthread_kill(emul_thread, SIGSTOP);
994	–	}
995	–
996	–	void ResumeEmulator(void)
997	–	{
998	–	pthread_kill(emul_thread, SIGCONT);
999	–	}
1000	–
1001	–
1002	–	/*
1279		*  Dump 68k registers
1280		*/
1281
#	Line 1027 | Line 1303 | void Dump68kRegs(M68kRegisters *r)
1303		*  Make code executable
1304		*/
1305
1306	<	void MakeExecutable(int dummy, void *start, uint32 length)
1306	>	void MakeExecutable(int dummy, uint32 start, uint32 length)
1307		{
1308	<	if (((uintptr)start >= ROM_BASE) && ((uintptr)start < (ROM_BASE + ROM_SIZE)))
1308	>	if ((start >= ROMBase) && (start < (ROMBase + ROM_SIZE)))
1309		return;
1310		#if EMULATED_PPC
1311	<	FlushCodeCache((uintptr)start, (uintptr)start + length);
1311	>	FlushCodeCache(start, start + length);
1312		#else
1313	<	flush_icache_range(start, (void *)((uintptr)start + length));
1313	>	flush_icache_range(start, start + length);
1314		#endif
1315		}
1316
1317
1318		/*
1319	<	*  Patch things after system startup (gets called by disk driver accRun routine)
1319	>	*  NVRAM watchdog thread (saves NVRAM every minute)
1320		*/
1321
1322	<	void PatchAfterStartup(void)
1322	>	static void nvram_watchdog(void)
1323		{
1324	<	#if EMULATED_PPC
1325	<	ExecuteNative(NATIVE_VIDEO_INSTALL_ACCEL);
1326	<	#else
1327	<	ExecutePPC(VideoInstallAccel);
1052	<	#endif
1053	<	InstallExtFS();
1324	>	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1325	>	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1326	>	SaveXPRAM();
1327	>	}
1328		}
1329
1056	–
1057	–	/*
1058	–	*  NVRAM watchdog thread (saves NVRAM every minute)
1059	–	*/
1060	–
1330		static void *nvram_func(void *arg)
1331		{
1332	<	struct timespec req = {60, 0};  // 1 minute
1333	<
1334	<	for (;;) {
1335	<	pthread_testcancel();
1067	<	nanosleep(&req, NULL);
1068	<	pthread_testcancel();
1069	<	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1070	<	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1071	<	SaveXPRAM();
1072	<	}
1332	>	while (!nvram_thread_cancel) {
1333	>	for (int i=0; i<60 && !nvram_thread_cancel; i++)
1334	>	Delay_usec(999999);             // Only wait 1 second so we quit promptly when nvram_thread_cancel becomes true
1335	>	nvram_watchdog();
1336		}
1337		return NULL;
1338		}
#	Line 1082 | Line 1345 | static void *nvram_func(void *arg)
1345		static void *tick_func(void *arg)
1346		{
1347		int tick_counter = 0;
1348	<	struct timespec req = {0, 16625000};
1348	>	uint64 start = GetTicks_usec();
1349	>	int64 ticks = 0;
1350	>	uint64 next = GetTicks_usec();
1351
1352	<	for (;;) {
1352	>	while (!tick_thread_cancel) {
1353
1354		// Wait
1355	<	nanosleep(&req, NULL);
1355	>	next += 16625;
1356	>	int64 delay = next - GetTicks_usec();
1357	>	if (delay > 0)
1358	>	Delay_usec(delay);
1359	>	else if (delay < -16625)
1360	>	next = GetTicks_usec();
1361	>	ticks++;
1362
1363		#if !EMULATED_PPC
1364		// Did we crash?
1365		if (emul_thread_fatal) {
1366
1367		// Yes, dump registers
1368	<	pt_regs *r = (pt_regs *)&sigsegv_regs;
1368	>	sigregs *r = &sigsegv_regs;
1369		char str[256];
1370	<	sprintf(str, "SIGSEGV\n"
1370	>	if (crash_reason == NULL)
1371	>	crash_reason = "SIGSEGV";
1372	>	sprintf(str, "%s\n"
1373		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1374		"  xer %08lx     cr %08lx  \n"
1375		"   r0 %08lx     r1 %08lx     r2 %08lx     r3 %08lx\n"
#	Line 1107 | Line 1380 | static void *tick_func(void *arg)
1380		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
1381		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
1382		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
1383	+	crash_reason,
1384		r->nip, r->link, r->ctr, r->msr,
1385		r->xer, r->ccr,
1386		r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
#	Line 1142 | Line 1416 | static void *tick_func(void *arg)
1416		TriggerInterrupt();
1417		}
1418		}
1419	+
1420	+	uint64 end = GetTicks_usec();
1421	+	D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1422		return NULL;
1423		}
1424
#	Line 1191 | Line 1468 | struct B2_mutex {
1468		pthread_mutexattr_init(&attr);
1469		// Initialize the mutex for priority inheritance --
1470		// required for accurate timing.
1471	<	#ifdef HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL
1471	>	#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__)
1472		pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
1473		#endif
1474		#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
#	Line 1262 | Line 1539 | void B2_delete_mutex(B2_mutex *mutex)
1539		*  Trigger signal USR2 from another thread
1540		*/
1541
1542	<	#if !EMULATED_PPC || ASYNC_IRQ
1542	>	#if !EMULATED_PPC
1543		void TriggerInterrupt(void)
1544		{
1545	<	if (ready_for_signals)
1545	>	if (ready_for_signals) {
1546	>	idle_resume();
1547		pthread_kill(emul_thread, SIGUSR2);
1548	+	}
1549		}
1550		#endif
1551
#	Line 1294 | Line 1573 | void ClearInterruptFlag(uint32 flag)
1573
1574		void DisableInterrupt(void)
1575		{
1576	+	#if EMULATED_PPC
1577	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) + 1);
1578	+	#else
1579		atomic_add((int *)XLM_IRQ_NEST, 1);
1580	+	#endif
1581		}
1582
1583
#	Line 1304 | Line 1587 | void DisableInterrupt(void)
1587
1588		void EnableInterrupt(void)
1589		{
1590	+	#if EMULATED_PPC
1591	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) - 1);
1592	+	#else
1593		atomic_add((int *)XLM_IRQ_NEST, -1);
1594	+	#endif
1595		}
1596
1597
#	Line 1312 | Line 1599 | void EnableInterrupt(void)
1599		*  USR2 handler
1600		*/
1601
1602	<	#if EMULATED_PPC
1603	<	static void sigusr2_handler(int sig)
1602	>	#if !EMULATED_PPC
1603	>	void sigusr2_handler(int sig, siginfo_t *sip, void *scp)
1604		{
1605	<	#if ASYNC_IRQ
1606	<	extern void HandleInterrupt(void);
1607	<	HandleInterrupt();
1605	>	machine_regs *r = MACHINE_REGISTERS(scp);
1606	>
1607	>	#ifdef SYSTEM_CLOBBERS_R2
1608	>	// Restore pointer to Thread Local Storage
1609	>	set_r2(TOC);
1610	>	#endif
1611	>	#ifdef SYSTEM_CLOBBERS_R13
1612	>	// Restore pointer to .sdata section
1613	>	set_r13(R13);
1614	>	#endif
1615	>
1616	>	#ifdef USE_SDL_VIDEO
1617	>	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
1618	>	SDL_PumpEvents();
1619		#endif
1322	–	}
1323	–	#else
1324	–	static void sigusr2_handler(int sig, sigcontext_struct *sc)
1325	–	{
1326	–	pt_regs *r = sc->regs;
1620
1621		// Do nothing if interrupts are disabled
1622		if (*(int32 *)XLM_IRQ_NEST > 0)
#	Line 1337 | Line 1630 | static void sigusr2_handler(int sig, sig
1630		case MODE_68K:
1631		// 68k emulator active, trigger 68k interrupt level 1
1632		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1633	<	r->ccr |= ntohl(kernel_data->v[0x674 >> 2]);
1633	>	r->cr() |= ntohl(kernel_data->v[0x674 >> 2]);
1634		break;
1635
1636		#if INTERRUPTS_IN_NATIVE_MODE
1637		case MODE_NATIVE:
1638		// 68k emulator inactive, in nanokernel?
1639	<	if (r->gpr[1] != KernelDataAddr) {
1639	>	if (r->gpr(1) != KernelDataAddr) {
1640	>
1641	>	// Set extra stack for SIGSEGV handler
1642	>	sigaltstack(&extra_stack, NULL);
1643	>
1644		// Prepare for 68k interrupt level 1
1645		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1646		WriteMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc, ReadMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc) | ntohl(kernel_data->v[0x674 >> 2]));
1647
1648		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
1649	<	atomic_add((int32 *)XLM_IRQ_NEST, 1);
1649	>	DisableInterrupt();
1650		if (ROMType == ROMTYPE_NEWWORLD)
1651	<	ppc_interrupt(ROM_BASE + 0x312b1c, KernelDataAddr);
1651	>	ppc_interrupt(ROMBase + 0x312b1c, KernelDataAddr);
1652		else
1653	<	ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
1653	>	ppc_interrupt(ROMBase + 0x312a3c, KernelDataAddr);
1654	>
1655	>	// Reset normal stack
1656	>	sigaltstack(&sig_stack, NULL);
1657		}
1658		break;
1659		#endif
#	Line 1364 | Line 1664 | static void sigusr2_handler(int sig, sig
1664		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1665
1666		// Set extra stack for SIGSEGV handler
1667	<	struct sigaltstack new_stack;
1368	<	new_stack.ss_sp = extra_stack;
1369	<	new_stack.ss_flags = 0;
1370	<	new_stack.ss_size = SIG_STACK_SIZE;
1371	<	sigaltstack(&new_stack, NULL);
1667	>	sigaltstack(&extra_stack, NULL);
1668		#if 1
1669		// Execute full 68k interrupt routine
1670		M68kRegisters r;
#	Line 1390 | Line 1686 | static void sigusr2_handler(int sig, sig
1686		if (InterruptFlags & INTFLAG_VIA) {
1687		ClearInterruptFlag(INTFLAG_VIA);
1688		ADBInterrupt();
1689	<	ExecutePPC(VideoVBL);
1689	>	ExecuteNative(NATIVE_VIDEO_VBL);
1690		}
1691		}
1692		#endif
1693	<	// Reset normal signal stack
1694	<	new_stack.ss_sp = sig_stack;
1399	<	new_stack.ss_flags = 0;
1400	<	new_stack.ss_size = SIG_STACK_SIZE;
1401	<	sigaltstack(&new_stack, NULL);
1693	>	// Reset normal stack
1694	>	sigaltstack(&sig_stack, NULL);
1695		}
1696		break;
1697		#endif
#	Line 1412 | Line 1705 | static void sigusr2_handler(int sig, sig
1705		*/
1706
1707		#if !EMULATED_PPC
1708	<	static void sigsegv_handler(int sig, sigcontext_struct *sc)
1708	>	static void sigsegv_handler(int sig, siginfo_t *sip, void *scp)
1709		{
1710	<	pt_regs *r = sc->regs;
1710	>	machine_regs *r = MACHINE_REGISTERS(scp);
1711
1712		// Get effective address
1713	<	uint32 addr = r->dar;
1713	>	uint32 addr = r->dar();
1714
1715	+	#ifdef SYSTEM_CLOBBERS_R2
1716	+	// Restore pointer to Thread Local Storage
1717	+	set_r2(TOC);
1718	+	#endif
1719	+	#ifdef SYSTEM_CLOBBERS_R13
1720	+	// Restore pointer to .sdata section
1721	+	set_r13(R13);
1722	+	#endif
1723	+
1724		#if ENABLE_VOSF
1725	<	// Handle screen fault.
1726	<	extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
1727	<	if (Screen_fault_handler((sigsegv_address_t)addr, (sigsegv_address_t)r->nip))
1725	>	// Handle screen fault
1726	>	#if SIGSEGV_CHECK_VERSION(1,0,0)
1727	>	sigsegv_info_t si;
1728	>	si.addr = (sigsegv_address_t)addr;
1729	>	si.pc = (sigsegv_address_t)r->pc();
1730	>	#endif
1731	>	extern bool Screen_fault_handler(sigsegv_info_t *sip);
1732	>	if (Screen_fault_handler(&si))
1733		return;
1734		#endif
1735
1736		num_segv++;
1737
1738	<	// Fault in Mac ROM or RAM?
1739	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
1738	>	// Fault in Mac ROM or RAM or DR Cache?
1739	>	bool mac_fault = (r->pc() >= ROMBase) && (r->pc() < (ROMBase + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize)) || (r->pc() >= DR_CACHE_BASE && r->pc() < (DR_CACHE_BASE + DR_CACHE_SIZE));
1740		if (mac_fault) {
1741
1742		// "VM settings" during MacOS 8 installation
1743	<	if (r->nip == ROM_BASE + 0x488160 && r->gpr[20] == 0xf8000000) {
1744	<	r->nip += 4;
1745	<	r->gpr[8] = 0;
1743	>	if (r->pc() == ROMBase + 0x488160 && r->gpr(20) == 0xf8000000) {
1744	>	r->pc() += 4;
1745	>	r->gpr(8) = 0;
1746		return;
1747
1748		// MacOS 8.5 installation
1749	<	} else if (r->nip == ROM_BASE + 0x488140 && r->gpr[16] == 0xf8000000) {
1750	<	r->nip += 4;
1751	<	r->gpr[8] = 0;
1749	>	} else if (r->pc() == ROMBase + 0x488140 && r->gpr(16) == 0xf8000000) {
1750	>	r->pc() += 4;
1751	>	r->gpr(8) = 0;
1752		return;
1753
1754		// MacOS 8 serial drivers on startup
1755	<	} else if (r->nip == ROM_BASE + 0x48e080 && (r->gpr[8] == 0xf3012002 || r->gpr[8] == 0xf3012000)) {
1756	<	r->nip += 4;
1757	<	r->gpr[8] = 0;
1755	>	} else if (r->pc() == ROMBase + 0x48e080 && (r->gpr(8) == 0xf3012002 || r->gpr(8) == 0xf3012000)) {
1756	>	r->pc() += 4;
1757	>	r->gpr(8) = 0;
1758		return;
1759
1760		// MacOS 8.1 serial drivers on startup
1761	<	} else if (r->nip == ROM_BASE + 0x48c5e0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
1762	<	r->nip += 4;
1761	>	} else if (r->pc() == ROMBase + 0x48c5e0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1762	>	r->pc() += 4;
1763		return;
1764	<	} else if (r->nip == ROM_BASE + 0x4a10a0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
1765	<	r->nip += 4;
1764	>	} else if (r->pc() == ROMBase + 0x4a10a0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1765	>	r->pc() += 4;
1766	>	return;
1767	>
1768	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
1769	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(16) == 0xf3012002 || r->gpr(16) == 0xf3012000)) {
1770	>	r->pc() += 4;
1771	>	return;
1772	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1773	>	r->pc() += 4;
1774		return;
1775		}
1776
1777		// Get opcode and divide into fields
1778	<	uint32 opcode = *((uint32 *)r->nip);
1778	>	uint32 opcode = *((uint32 *)r->pc());
1779		uint32 primop = opcode >> 26;
1780		uint32 exop = (opcode >> 1) & 0x3ff;
1781		uint32 ra = (opcode >> 16) & 0x1f;
#	Line 1549 | Line 1864 | static void sigsegv_handler(int sig, sig
1864		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_NORM; break;
1865		case 45:        // sthu
1866		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_U; break;
1867	+	#if EMULATE_UNALIGNED_LOADSTORE_MULTIPLE
1868	+	case 46:        // lmw
1869	+	if ((addr % 4) != 0) {
1870	+	uint32 ea = addr;
1871	+	D(bug("WARNING: unaligned lmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1872	+	for (int i = rd; i <= 31; i++) {
1873	+	r->gpr(i) = ReadMacInt32(ea);
1874	+	ea += 4;
1875	+	}
1876	+	r->pc() += 4;
1877	+	goto rti;
1878	+	}
1879	+	break;
1880	+	case 47:        // stmw
1881	+	if ((addr % 4) != 0) {
1882	+	uint32 ea = addr;
1883	+	D(bug("WARNING: unaligned stmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1884	+	for (int i = rd; i <= 31; i++) {
1885	+	WriteMacInt32(ea, r->gpr(i));
1886	+	ea += 4;
1887	+	}
1888	+	r->pc() += 4;
1889	+	goto rti;
1890	+	}
1891	+	break;
1892	+	#endif
1893		}
1894
1895	<	// Ignore ROM writes
1896	<	if (transfer_type == TYPE_STORE && addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) {
1897	<	//                      D(bug("WARNING: %s write access to ROM at %08lx, pc %08lx\n", transfer_size == SIZE_BYTE ? "Byte" : transfer_size == SIZE_HALFWORD ? "Halfword" : "Word", addr, r->nip));
1895	>	// Ignore ROM writes (including to the zero page, which is read-only)
1896	>	if (transfer_type == TYPE_STORE &&
1897	>	((addr >= ROMBase && addr < ROMBase + ROM_SIZE) ||
1898	>	(addr >= SheepMem::ZeroPage() && addr < SheepMem::ZeroPage() + SheepMem::PageSize()))) {
1899	>	//                      D(bug("WARNING: %s write access to ROM at %08lx, pc %08lx\n", transfer_size == SIZE_BYTE ? "Byte" : transfer_size == SIZE_HALFWORD ? "Halfword" : "Word", addr, r->pc()));
1900		if (addr_mode == MODE_U || addr_mode == MODE_UX)
1901	<	r->gpr[ra] = addr;
1902	<	r->nip += 4;
1901	>	r->gpr(ra) = addr;
1902	>	r->pc() += 4;
1903		goto rti;
1904		}
1905
1906		// Ignore illegal memory accesses?
1907		if (PrefsFindBool("ignoresegv")) {
1908		if (addr_mode == MODE_U || addr_mode == MODE_UX)
1909	<	r->gpr[ra] = addr;
1909	>	r->gpr(ra) = addr;
1910		if (transfer_type == TYPE_LOAD)
1911	<	r->gpr[rd] = 0;
1912	<	r->nip += 4;
1911	>	r->gpr(rd) = 0;
1912	>	r->pc() += 4;
1913		goto rti;
1914		}
1915
#	Line 1574 | Line 1917 | static void sigsegv_handler(int sig, sig
1917		if (!PrefsFindBool("nogui")) {
1918		char str[256];
1919		if (transfer_type == TYPE_LOAD || transfer_type == TYPE_STORE)
1920	<	sprintf(str, GetString(STR_MEM_ACCESS_ERR), transfer_size == SIZE_BYTE ? "byte" : transfer_size == SIZE_HALFWORD ? "halfword" : "word", transfer_type == TYPE_LOAD ? GetString(STR_MEM_ACCESS_READ) : GetString(STR_MEM_ACCESS_WRITE), addr, r->nip, r->gpr[24], r->gpr[1]);
1920	>	sprintf(str, GetString(STR_MEM_ACCESS_ERR), transfer_size == SIZE_BYTE ? "byte" : transfer_size == SIZE_HALFWORD ? "halfword" : "word", transfer_type == TYPE_LOAD ? GetString(STR_MEM_ACCESS_READ) : GetString(STR_MEM_ACCESS_WRITE), addr, r->pc(), r->gpr(24), r->gpr(1));
1921		else
1922	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
1922	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
1923		ErrorAlert(str);
1924		QuitEmulator();
1925		return;
#	Line 1584 | Line 1927 | static void sigsegv_handler(int sig, sig
1927		}
1928
1929		// For all other errors, jump into debugger (sort of...)
1930	+	crash_reason = (sig == SIGBUS) ? "SIGBUS" : "SIGSEGV";
1931		if (!ready_for_signals) {
1932	<	printf("SIGSEGV\n");
1933	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
1932	>	printf("%s\n");
1933	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
1934		printf(
1935		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1936		"  xer %08lx     cr %08lx  \n"
#	Line 1598 | Line 1942 | static void sigsegv_handler(int sig, sig
1942		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
1943		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
1944		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
1945	<	r->nip, r->link, r->ctr, r->msr,
1946	<	r->xer, r->ccr,
1947	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
1948	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
1949	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
1950	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
1951	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
1952	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
1953	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
1954	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
1945	>	crash_reason,
1946	>	r->pc(), r->lr(), r->ctr(), r->msr(),
1947	>	r->xer(), r->cr(),
1948	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
1949	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
1950	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
1951	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
1952	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
1953	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
1954	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
1955	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
1956		exit(1);
1957		QuitEmulator();
1958		return;
1959		} else {
1960		// We crashed. Save registers, tell tick thread and loop forever
1961	<	sigsegv_regs = *(sigregs *)r;
1961	>	build_sigregs(&sigsegv_regs, r);
1962		emul_thread_fatal = true;
1963		for (;;) ;
1964		}
#	Line 1625 | Line 1970 | rti:;
1970		*  SIGILL handler
1971		*/
1972
1973	<	static void sigill_handler(int sig, sigcontext_struct *sc)
1973	>	static void sigill_handler(int sig, siginfo_t *sip, void *scp)
1974		{
1975	<	pt_regs *r = sc->regs;
1975	>	machine_regs *r = MACHINE_REGISTERS(scp);
1976		char str[256];
1977
1978	+	#ifdef SYSTEM_CLOBBERS_R2
1979	+	// Restore pointer to Thread Local Storage
1980	+	set_r2(TOC);
1981	+	#endif
1982	+	#ifdef SYSTEM_CLOBBERS_R13
1983	+	// Restore pointer to .sdata section
1984	+	set_r13(R13);
1985	+	#endif
1986	+
1987		// Fault in Mac ROM or RAM?
1988	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
1988	>	bool mac_fault = (r->pc() >= ROMBase) && (r->pc() < (ROMBase + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
1989		if (mac_fault) {
1990
1991		// Get opcode and divide into fields
1992	<	uint32 opcode = *((uint32 *)r->nip);
1992	>	uint32 opcode = *((uint32 *)r->pc());
1993		uint32 primop = opcode >> 26;
1994		uint32 exop = (opcode >> 1) & 0x3ff;
1995		uint32 ra = (opcode >> 16) & 0x1f;
#	Line 1646 | Line 2000 | static void sigill_handler(int sig, sigc
2000		switch (primop) {
2001		case 9:         // POWER instructions
2002		case 22:
2003	<	power_inst:             sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->nip, r->gpr[1], opcode);
2003	>	power_inst:             sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->pc(), r->gpr(1), opcode);
2004		ErrorAlert(str);
2005		QuitEmulator();
2006		return;
#	Line 1654 | Line 2008 | power_inst:            sprintf(str, GetString(STR_
2008		case 31:
2009		switch (exop) {
2010		case 83:        // mfmsr
2011	<	r->gpr[rd] = 0xf072;
2012	<	r->nip += 4;
2011	>	r->gpr(rd) = 0xf072;
2012	>	r->pc() += 4;
2013		goto rti;
2014
2015		case 210:       // mtsr
2016		case 242:       // mtsrin
2017		case 306:       // tlbie
2018	<	r->nip += 4;
2018	>	r->pc() += 4;
2019		goto rti;
2020
2021		case 339: {     // mfspr
#	Line 1677 | Line 2031 | power_inst:            sprintf(str, GetString(STR_
2031		case 957:       // PMC3
2032		case 958:       // PMC4
2033		case 959:       // SDA
2034	<	r->nip += 4;
2034	>	r->pc() += 4;
2035		goto rti;
2036		case 25:        // SDR1
2037	<	r->gpr[rd] = 0xdead001f;
2038	<	r->nip += 4;
2037	>	r->gpr(rd) = 0xdead001f;
2038	>	r->pc() += 4;
2039		goto rti;
2040		case 287:       // PVR
2041	<	r->gpr[rd] = PVR;
2042	<	r->nip += 4;
2041	>	r->gpr(rd) = PVR;
2042	>	r->pc() += 4;
2043		goto rti;
2044		}
2045		break;
#	Line 1721 | Line 2075 | power_inst:            sprintf(str, GetString(STR_
2075		case 957:       // PMC3
2076		case 958:       // PMC4
2077		case 959:       // SDA
2078	<	r->nip += 4;
2078	>	r->pc() += 4;
2079		goto rti;
2080		}
2081		break;
#	Line 1740 | Line 2094 | power_inst:            sprintf(str, GetString(STR_
2094
2095		// In GUI mode, show error alert
2096		if (!PrefsFindBool("nogui")) {
2097	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
2097	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
2098		ErrorAlert(str);
2099		QuitEmulator();
2100		return;
#	Line 1748 | Line 2102 | power_inst:            sprintf(str, GetString(STR_
2102		}
2103
2104		// For all other errors, jump into debugger (sort of...)
2105	+	crash_reason = "SIGILL";
2106		if (!ready_for_signals) {
2107	<	printf("SIGILL\n");
2108	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
2107	>	printf("%s\n");
2108	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
2109		printf(
2110		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
2111		"  xer %08lx     cr %08lx  \n"
#	Line 1762 | Line 2117 | power_inst:            sprintf(str, GetString(STR_
2117		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
2118		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
2119		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
2120	<	r->nip, r->link, r->ctr, r->msr,
2121	<	r->xer, r->ccr,
2122	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
2123	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
2124	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
2125	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
2126	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
2127	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
2128	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
2129	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
2120	>	crash_reason,
2121	>	r->pc(), r->lr(), r->ctr(), r->msr(),
2122	>	r->xer(), r->cr(),
2123	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
2124	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
2125	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
2126	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
2127	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
2128	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
2129	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
2130	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
2131		exit(1);
2132		QuitEmulator();
2133		return;
2134		} else {
2135		// We crashed. Save registers, tell tick thread and loop forever
2136	<	sigsegv_regs = *(sigregs *)r;
2136	>	build_sigregs(&sigsegv_regs, r);
2137		emul_thread_fatal = true;
2138		for (;;) ;
2139		}
#	Line 1787 | Line 2143 | rti:;
2143
2144
2145		/*
2146	+	*  Helpers to share 32-bit addressable data with MacOS
2147	+	*/
2148	+
2149	+	bool SheepMem::Init(void)
2150	+	{
2151	+	// Size of a native page
2152	+	page_size = getpagesize();
2153	+
2154	+	// Allocate SheepShaver globals
2155	+	proc = base;
2156	+	if (vm_mac_acquire_fixed(base, size) < 0)
2157	+	return false;
2158	+
2159	+	// Allocate page with all bits set to 0, right in the middle
2160	+	// This is also used to catch undesired overlaps between proc and data areas
2161	+	zero_page = proc + (size / 2);
2162	+	Mac_memset(zero_page, 0, page_size);
2163	+	if (vm_protect(Mac2HostAddr(zero_page), page_size, VM_PAGE_READ) < 0)
2164	+	return false;
2165	+
2166	+	#if EMULATED_PPC
2167	+	// Allocate alternate stack for PowerPC interrupt routine
2168	+	sig_stack = base + size;
2169	+	if (vm_mac_acquire_fixed(sig_stack, SIG_STACK_SIZE) < 0)
2170	+	return false;
2171	+	#endif
2172	+
2173	+	data = base + size;
2174	+	return true;
2175	+	}
2176	+
2177	+	void SheepMem::Exit(void)
2178	+	{
2179	+	if (data) {
2180	+	// Delete SheepShaver globals
2181	+	vm_mac_release(base, size);
2182	+
2183	+	#if EMULATED_PPC
2184	+	// Delete alternate stack for PowerPC interrupt routine
2185	+	vm_mac_release(sig_stack, SIG_STACK_SIZE);
2186	+	#endif
2187	+	}
2188	+	}
2189	+
2190	+
2191	+	/*
2192		*  Display alert
2193		*/
2194
#	Line 1835 | Line 2237 | void display_alert(int title_id, int pre
2237
2238		void ErrorAlert(const char *text)
2239		{
2240	<	#ifdef ENABLE_GTK
2240	>	if (gui_connection) {
2241	>	if (rpc_method_invoke(gui_connection, RPC_METHOD_ERROR_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2242	>	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2243	>	return;
2244	>	}
2245	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2246		if (PrefsFindBool("nogui") || x_display == NULL) {
2247		printf(GetString(STR_SHELL_ERROR_PREFIX), text);
2248		return;
#	Line 1854 | Line 2261 | void ErrorAlert(const char *text)
2261
2262		void WarningAlert(const char *text)
2263		{
2264	<	#ifdef ENABLE_GTK
2264	>	if (gui_connection) {
2265	>	if (rpc_method_invoke(gui_connection, RPC_METHOD_WARNING_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2266	>	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2267	>	return;
2268	>	}
2269	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2270		if (PrefsFindBool("nogui") || x_display == NULL) {
2271		printf(GetString(STR_SHELL_WARNING_PREFIX), text);
2272		return;

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