ViewVC Help

View File | Revision Log | Show Annotations | Revision Graph | Root Listing

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

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.2 by cebix, 2002-02-21T15:12:12Z vs.
Revision 1.71 by gbeauche, 2005-07-06T05:11:56Z

#	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) 1997-2005 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 93 | Line 102
102		#include "xpram.h"
103		#include "timer.h"
104		#include "adb.h"
96	–	#include "sony.h"
97	–	#include "disk.h"
98	–	#include "cdrom.h"
99	–	#include "scsi.h"
105		#include "video.h"
101	–	#include "audio.h"
102	–	#include "ether.h"
103	–	#include "serial.h"
104	–	#include "clip.h"
105	–	#include "extfs.h"
106		#include "sys.h"
107		#include "macos_util.h"
108		#include "rom_patches.h"
109		#include "user_strings.h"
110	+	#include "vm_alloc.h"
111	+	#include "sigsegv.h"
112	+	#include "sigregs.h"
113
114		#define DEBUG 0
115		#include "debug.h"
116
117
118	+	#ifdef HAVE_DIRENT_H
119	+	#include <dirent.h>
120	+	#endif
121	+
122	+	#ifdef USE_SDL
123	+	#include <SDL.h>
124	+	#endif
125	+
126	+	#ifndef USE_SDL_VIDEO
127		#include <X11/Xlib.h>
128	+	#endif
129
130		#ifdef ENABLE_GTK
131		#include <gtk/gtk.h>
#	Line 129 | Line 142
142		#endif
143
144
145	+	// Enable emulation of unaligned lmw/stmw?
146	+	#define EMULATE_UNALIGNED_LOADSTORE_MULTIPLE 1
147	+
148		// Enable Execute68k() safety checks?
149		#define SAFE_EXEC_68K 0
150
#	Line 143 | Line 159
159		const char ROM_FILE_NAME[] = "ROM";
160		const char ROM_FILE_NAME2[] = "Mac OS ROM";
161
162	<	const uint32 ROM_AREA_SIZE = 0x500000;          // Size of ROM area
163	<	const uint32 ROM_END = ROM_BASE + ROM_SIZE;     // End of ROM
164	<
165	<	const uint32 KERNEL_DATA_BASE = 0x68ffe000;     // Address of Kernel Data
166	<	const uint32 KERNEL_DATA2_BASE = 0x5fffe000;    // Alternate address of Kernel Data
151	<	const uint32 KERNEL_AREA_SIZE = 0x2000;         // Size of Kernel Data area
152	<
153	<	const uint32 SIG_STACK_SIZE = 0x10000;          // Size of signal stack
154	<
155	<
156	<	// 68k Emulator Data
157	<	struct EmulatorData {
158	<	uint32  v[0x400];
159	<	};
160	<
161	<
162	<	// Kernel Data
163	<	struct KernelData {
164	<	uint32  v[0x400];
165	<	EmulatorData ed;
166	<	};
167	<
168	<
169	<	#if !EMULATED_PPC
170	<	// Structure in which registers are saved in a signal handler;
171	<	// sigcontext->regs points to it
172	<	// (see arch/ppc/kernel/signal.c)
173	<	typedef struct {
174	<	uint32 u[4];
175	<	} __attribute((aligned(16))) vector128;
176	<	#include <linux/elf.h>
177	<
178	<	struct sigregs {
179	<	elf_gregset_t   gp_regs;                                // Identical to pt_regs
180	<	double                  fp_regs[ELF_NFPREG];    // f0..f31 and fpsrc
181	<	//more (uninteresting) stuff following here
182	<	};
162	>	#if REAL_ADDRESSING
163	>	const uintptr RAM_BASE = 0x20000000;            // Base address of RAM
164	>	#else
165	>	// FIXME: needs to be >= 0x04000000
166	>	const uintptr RAM_BASE = 0x10000000;            // Base address of RAM
167		#endif
168	+	const uint32 SIG_STACK_SIZE = 0x10000;          // Size of signal stack
169
170
171		// Global variables (exported)
172		#if !EMULATED_PPC
173	<	void *TOC;                              // Small data pointer (r13)
173	>	void *TOC = NULL;               // Pointer to Thread Local Storage (r2)
174	>	void *R13 = NULL;               // Pointer to .sdata section (r13 under Linux)
175		#endif
176		uint32 RAMBase;                 // Base address of Mac RAM
177		uint32 RAMSize;                 // Size of Mac RAM
178		uint32 KernelDataAddr;  // Address of Kernel Data
179		uint32 BootGlobsAddr;   // Address of BootGlobs structure at top of Mac RAM
180	+	uint32 DRCacheAddr;             // Address of DR Cache
181		uint32 PVR;                             // Theoretical PVR
182		int64 CPUClockSpeed;    // Processor clock speed (Hz)
183		int64 BusClockSpeed;    // Bus clock speed (Hz)
184	+	int64 TimebaseSpeed;    // Timebase clock speed (Hz)
185	+	uint8 *RAMBaseHost;             // Base address of Mac RAM (host address space)
186	+	uint8 *ROMBaseHost;             // Base address of Mac ROM (host address space)
187
188
189		// Global variables
190	<	static char *x_display_name = NULL;                     // X11 display name
190	>	#ifndef USE_SDL_VIDEO
191	>	char *x_display_name = NULL;                            // X11 display name
192		Display *x_display = NULL;                                      // X11 display handle
193	+	#ifdef X11_LOCK_TYPE
194	+	X11_LOCK_TYPE x_display_lock = X11_LOCK_INIT; // X11 display lock
195	+	#endif
196	+	#endif
197
198		static int zero_fd = 0;                                         // FD of /dev/zero
199		static bool lm_area_mapped = false;                     // Flag: Low Memory area mmap()ped
200		static int kernel_area = -1;                            // SHM ID of Kernel Data area
201		static bool rom_area_mapped = false;            // Flag: Mac ROM mmap()ped
202		static bool ram_area_mapped = false;            // Flag: Mac RAM mmap()ped
203	<	static void *mmap_RAMBase = NULL;                       // Base address of mmap()ed RAM area
203	>	static bool dr_cache_area_mapped = false;       // Flag: Mac DR Cache mmap()ped
204	>	static bool dr_emulator_area_mapped = false;// Flag: Mac DR Emulator mmap()ped
205		static KernelData *kernel_data;                         // Pointer to Kernel Data
206		static EmulatorData *emulator_data;
207
208		static uint8 last_xpram[XPRAM_SIZE];            // Buffer for monitoring XPRAM changes
209
210		static bool nvram_thread_active = false;        // Flag: NVRAM watchdog installed
211	+	static volatile bool nvram_thread_cancel;       // Flag: Cancel NVRAM thread
212		static pthread_t nvram_thread;                          // NVRAM watchdog
213		static bool tick_thread_active = false;         // Flag: MacOS thread installed
214	+	static volatile bool tick_thread_cancel;        // Flag: Cancel 60Hz thread
215		static pthread_t tick_thread;                           // 60Hz thread
216		static pthread_t emul_thread;                           // MacOS thread
217
218		static bool ready_for_signals = false;          // Handler installed, signals can be sent
219		static int64 num_segv = 0;                                      // Number of handled SEGV signals
220
223	–	#if !EMULATED_PPC
221		static struct sigaction sigusr2_action;         // Interrupt signal (of emulator thread)
222	+	#if EMULATED_PPC
223	+	static uintptr sig_stack = 0;                           // Stack for PowerPC interrupt routine
224	+	#else
225		static struct sigaction sigsegv_action;         // Data access exception signal (of emulator thread)
226		static struct sigaction sigill_action;          // Illegal instruction signal (of emulator thread)
227	<	static void *sig_stack = NULL;                          // Stack for signal handlers
228	<	static void *extra_stack = NULL;                        // Stack for SIGSEGV inside interrupt handler
227	>	static struct sigaltstack sig_stack;            // Stack for signal handlers
228	>	static struct sigaltstack extra_stack;          // Stack for SIGSEGV inside interrupt handler
229		static bool emul_thread_fatal = false;          // Flag: MacOS thread crashed, tick thread shall dump debug output
230		static sigregs sigsegv_regs;                            // Register dump when crashed
231	+	static const char *crash_reason = NULL;         // Reason of the crash (SIGSEGV, SIGBUS, SIGILL)
232		#endif
233
234	+	uint32  SheepMem::page_size;                            // Size of a native page
235	+	uintptr SheepMem::zero_page = 0;                        // Address of ro page filled in with zeros
236	+	uintptr SheepMem::base = 0x60000000;            // Address of SheepShaver data
237	+	uintptr SheepMem::proc;                                         // Bottom address of SheepShave procedures
238	+	uintptr SheepMem::data;                                         // Top of SheepShaver data (stack like storage)
239	+
240
241		// Prototypes
242	+	static bool kernel_data_init(void);
243	+	static void kernel_data_exit(void);
244		static void Quit(void);
245		static void *emul_func(void *arg);
246		static void *nvram_func(void *arg);
247		static void *tick_func(void *arg);
248	<	#if !EMULATED_PPC
249	<	static void sigusr2_handler(int sig, sigcontext_struct *sc);
250	<	static void sigsegv_handler(int sig, sigcontext_struct *sc);
251	<	static void sigill_handler(int sig, sigcontext_struct *sc);
248	>	#if EMULATED_PPC
249	>	extern void emul_ppc(uint32 start);
250	>	extern void init_emul_ppc(void);
251	>	extern void exit_emul_ppc(void);
252	>	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
253	>	#else
254	>	extern "C" void sigusr2_handler_init(int sig, siginfo_t *sip, void *scp);
255	>	extern "C" void sigusr2_handler(int sig, siginfo_t *sip, void *scp);
256	>	static void sigsegv_handler(int sig, siginfo_t *sip, void *scp);
257	>	static void sigill_handler(int sig, siginfo_t *sip, void *scp);
258		#endif
259
260
261		// From asm_linux.S
262	<	#if EMULATED_PPC
248	<	extern int atomic_add(int *var, int v);
249	<	extern int atomic_and(int *var, int v);
250	<	extern int atomic_or(int *var, int v);
251	<	#else
252	<	extern "C" void *get_toc(void);
262	>	#if !EMULATED_PPC
263		extern "C" void *get_sp(void);
264	<	extern "C" void flush_icache_range(void *start, void *end);
264	>	extern "C" void *get_r2(void);
265	>	extern "C" void set_r2(void *);
266	>	extern "C" void *get_r13(void);
267	>	extern "C" void set_r13(void *);
268	>	extern "C" void flush_icache_range(uint32 start, uint32 end);
269		extern "C" void jump_to_rom(uint32 entry, uint32 context);
270		extern "C" void quit_emulator(void);
271		extern "C" void execute_68k(uint32 pc, M68kRegisters *r);
#	Line 263 | Line 277 | extern void paranoia_check(void);
277		#endif
278
279
280	<	// Decode LZSS data
281	<	static void decode_lzss(const uint8 *src, uint8 *dest, int size)
280	>	#if EMULATED_PPC
281	>	/*
282	>	*  Return signal stack base
283	>	*/
284	>
285	>	uintptr SignalStackBase(void)
286		{
287	<	char dict[0x1000];
288	<	int run_mask = 0, dict_idx = 0xfee;
289	<	for (;;) {
290	<	if (run_mask < 0x100) {
291	<	// Start new run
292	<	if (--size < 0)
293	<	break;
294	<	run_mask = *src++ | 0xff00;
295	<	}
296	<	bool bit = run_mask & 1;
297	<	run_mask >>= 1;
298	<	if (bit) {
299	<	// Verbatim copy
300	<	if (--size < 0)
301	<	break;
302	<	int c = *src++;
303	<	dict[dict_idx++] = c;
304	<	*dest++ = c;
305	<	dict_idx &= 0xfff;
306	<	} else {
307	<	// Copy from dictionary
308	<	if (--size < 0)
309	<	break;
310	<	int idx = *src++;
311	<	if (--size < 0)
312	<	break;
313	<	int cnt = *src++;
314	<	idx |= (cnt << 4) & 0xf00;
315	<	cnt = (cnt & 0x0f) + 3;
316	<	while (cnt--) {
317	<	char c = dict[idx++];
318	<	dict[dict_idx++] = c;
319	<	*dest++ = c;
320	<	idx &= 0xfff;
321	<	dict_idx &= 0xfff;
322	<	}
323	<	}
324	<	}
287	>	return sig_stack + SIG_STACK_SIZE;
288	>	}
289	>
290	>
291	>	/*
292	>	*  Atomic operations
293	>	*/
294	>
295	>	#if HAVE_SPINLOCKS
296	>	static spinlock_t atomic_ops_lock = SPIN_LOCK_UNLOCKED;
297	>	#else
298	>	#define spin_lock(LOCK)
299	>	#define spin_unlock(LOCK)
300	>	#endif
301	>
302	>	int atomic_add(int *var, int v)
303	>	{
304	>	spin_lock(&atomic_ops_lock);
305	>	int ret = *var;
306	>	*var += v;
307	>	spin_unlock(&atomic_ops_lock);
308	>	return ret;
309	>	}
310	>
311	>	int atomic_and(int *var, int v)
312	>	{
313	>	spin_lock(&atomic_ops_lock);
314	>	int ret = *var;
315	>	*var &= v;
316	>	spin_unlock(&atomic_ops_lock);
317	>	return ret;
318	>	}
319	>
320	>	int atomic_or(int *var, int v)
321	>	{
322	>	spin_lock(&atomic_ops_lock);
323	>	int ret = *var;
324	>	*var |= v;
325	>	spin_unlock(&atomic_ops_lock);
326	>	return ret;
327	>	}
328	>	#endif
329	>
330	>
331	>	/*
332	>	*  Memory management helpers
333	>	*/
334	>
335	>	static inline int vm_mac_acquire(uint32 addr, uint32 size)
336	>	{
337	>	return vm_acquire_fixed(Mac2HostAddr(addr), size);
338	>	}
339	>
340	>	static inline int vm_mac_release(uint32 addr, uint32 size)
341	>	{
342	>	return vm_release(Mac2HostAddr(addr), size);
343		}
344
345
#	Line 323 | Line 359 | static void usage(const char *prg_name)
359		int main(int argc, char **argv)
360		{
361		char str[256];
326	–	uint32 *boot_globs;
327	–	int16 i16;
328	–	int drive, driver;
362		int rom_fd;
363		FILE *proc_file;
364		const char *rom_path;
#	Line 335 | Line 368 | int main(int argc, char **argv)
368
369		// Initialize variables
370		RAMBase = 0;
338	–	mmap_RAMBase = NULL;
371		tzset();
372
373		// Print some info
#	Line 343 | Line 375 | int main(int argc, char **argv)
375		printf(" %s\n", GetString(STR_ABOUT_TEXT2));
376
377		#if !EMULATED_PPC
378	+	#ifdef SYSTEM_CLOBBERS_R2
379		// Get TOC pointer
380	<	TOC = get_toc();
380	>	TOC = get_r2();
381	>	#endif
382	>	#ifdef SYSTEM_CLOBBERS_R13
383	>	// Get r13 register
384	>	R13 = get_r13();
385	>	#endif
386		#endif
387
388		#ifdef ENABLE_GTK
#	Line 360 | Line 398 | int main(int argc, char **argv)
398		for (int i=1; i<argc; i++) {
399		if (strcmp(argv[i], "--help") == 0) {
400		usage(argv[0]);
401	+	#ifndef USE_SDL_VIDEO
402		} else if (strcmp(argv[i], "--display") == 0) {
403		i++;
404		if (i < argc)
405		x_display_name = strdup(argv[i]);
406	+	#endif
407		} else if (argv[i][0] == '-') {
408		fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
409		usage(argv[0]);
410		}
411		}
412
413	+	#ifdef USE_SDL
414	+	// Initialize SDL system
415	+	int sdl_flags = 0;
416	+	#ifdef USE_SDL_VIDEO
417	+	sdl_flags |= SDL_INIT_VIDEO;
418	+	#endif
419	+	#ifdef USE_SDL_AUDIO
420	+	sdl_flags |= SDL_INIT_AUDIO;
421	+	#endif
422	+	assert(sdl_flags != 0);
423	+	if (SDL_Init(sdl_flags) == -1) {
424	+	char str[256];
425	+	sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError());
426	+	ErrorAlert(str);
427	+	goto quit;
428	+	}
429	+	atexit(SDL_Quit);
430	+	#endif
431	+
432	+	#ifndef USE_SDL_VIDEO
433		// Open display
434		x_display = XOpenDisplay(x_display_name);
435		if (x_display == NULL) {
#	Line 383 | Line 443 | int main(int argc, char **argv)
443		// Fork out, so we can return from fullscreen mode when things get ugly
444		XF86DGAForkApp(DefaultScreen(x_display));
445		#endif
446	+	#endif
447
448		#ifdef ENABLE_MON
449		// Initialize mon
450		mon_init();
451		#endif
452
453	+	#if !EMULATED_PPC
454	+	// Create and install stacks for signal handlers
455	+	sig_stack.ss_sp = malloc(SIG_STACK_SIZE);
456	+	D(bug("Signal stack at %p\n", sig_stack.ss_sp));
457	+	if (sig_stack.ss_sp == NULL) {
458	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
459	+	goto quit;
460	+	}
461	+	sig_stack.ss_flags = 0;
462	+	sig_stack.ss_size = SIG_STACK_SIZE;
463	+	if (sigaltstack(&sig_stack, NULL) < 0) {
464	+	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
465	+	ErrorAlert(str);
466	+	goto quit;
467	+	}
468	+	extra_stack.ss_sp = malloc(SIG_STACK_SIZE);
469	+	D(bug("Extra stack at %p\n", extra_stack.ss_sp));
470	+	if (extra_stack.ss_sp == NULL) {
471	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
472	+	goto quit;
473	+	}
474	+	extra_stack.ss_flags = 0;
475	+	extra_stack.ss_size = SIG_STACK_SIZE;
476	+	#endif
477	+
478	+	#if !EMULATED_PPC
479	+	// Install SIGSEGV and SIGBUS handlers
480	+	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
481	+	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
482	+	sigsegv_action.sa_sigaction = sigsegv_handler;
483	+	sigsegv_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
484	+	#ifdef HAVE_SIGNAL_SA_RESTORER
485	+	sigsegv_action.sa_restorer = NULL;
486	+	#endif
487	+	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
488	+	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
489	+	ErrorAlert(str);
490	+	goto quit;
491	+	}
492	+	if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
493	+	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
494	+	ErrorAlert(str);
495	+	goto quit;
496	+	}
497	+	#else
498	+	// Install SIGSEGV handler for CPU emulator
499	+	if (!sigsegv_install_handler(sigsegv_handler)) {
500	+	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
501	+	ErrorAlert(str);
502	+	goto quit;
503	+	}
504	+	#endif
505	+
506	+	// Initialize VM system
507	+	vm_init();
508	+
509		// Get system info
510		PVR = 0x00040000;                       // Default: 604
511		CPUClockSpeed = 100000000;      // Default: 100MHz
512		BusClockSpeed = 100000000;      // Default: 100MHz
513	<	#if !EMULATED_PPC
513	>	TimebaseSpeed =  25000000;      // Default:  25MHz
514	>	#if EMULATED_PPC
515	>	PVR = 0x000c0000;                       // Default: 7400 (with AltiVec)
516	>	#elif defined(__APPLE__) && defined(__MACH__)
517	>	proc_file = popen("ioreg -c IOPlatformDevice", "r");
518	>	if (proc_file) {
519	>	char line[256];
520	>	bool powerpc_node = false;
521	>	while (fgets(line, sizeof(line) - 1, proc_file)) {
522	>	// Read line
523	>	int len = strlen(line);
524	>	if (len == 0)
525	>	continue;
526	>	line[len - 1] = 0;
527	>
528	>	// Parse line
529	>	if (strstr(line, "o PowerPC,"))
530	>	powerpc_node = true;
531	>	else if (powerpc_node) {
532	>	uint32 value;
533	>	char head[256];
534	>	if (sscanf(line, "%[ |]\"cpu-version\" = <%x>", head, &value) == 2)
535	>	PVR = value;
536	>	else if (sscanf(line, "%[ |]\"clock-frequency\" = <%x>", head, &value) == 2)
537	>	CPUClockSpeed = value;
538	>	else if (sscanf(line, "%[ |]\"bus-frequency\" = <%x>", head, &value) == 2)
539	>	BusClockSpeed = value;
540	>	else if (sscanf(line, "%[ |]\"timebase-frequency\" = <%x>", head, &value) == 2)
541	>	TimebaseSpeed = value;
542	>	else if (strchr(line, '}'))
543	>	powerpc_node = false;
544	>	}
545	>	}
546	>	fclose(proc_file);
547	>	} else {
548	>	sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
549	>	WarningAlert(str);
550	>	}
551	>	#else
552		proc_file = fopen("/proc/cpuinfo", "r");
553		if (proc_file) {
554	+	// CPU specs from Linux kernel
555	+	// TODO: make it more generic with features (e.g. AltiVec) and
556	+	// cache information and friends for NameRegistry
557	+	static const struct {
558	+	uint32 pvr_mask;
559	+	uint32 pvr_value;
560	+	const char *cpu_name;
561	+	}
562	+	cpu_specs[] = {
563	+	{ 0xffff0000, 0x00010000, "601" },
564	+	{ 0xffff0000, 0x00030000, "603" },
565	+	{ 0xffff0000, 0x00060000, "603e" },
566	+	{ 0xffff0000, 0x00070000, "603ev" },
567	+	{ 0xffff0000, 0x00040000, "604" },
568	+	{ 0xfffff000, 0x00090000, "604e" },
569	+	{ 0xffff0000, 0x00090000, "604r" },
570	+	{ 0xffff0000, 0x000a0000, "604ev" },
571	+	{ 0xffffffff, 0x00084202, "740/750" },
572	+	{ 0xfffff000, 0x00083000, "745/755" },
573	+	{ 0xfffffff0, 0x00080100, "750CX" },
574	+	{ 0xfffffff0, 0x00082200, "750CX" },
575	+	{ 0xfffffff0, 0x00082210, "750CXe" },
576	+	{ 0xffffff00, 0x70000100, "750FX" },
577	+	{ 0xffffffff, 0x70000200, "750FX" },
578	+	{ 0xffff0000, 0x70000000, "750FX" },
579	+	{ 0xffff0000, 0x70020000, "750GX" },
580	+	{ 0xffff0000, 0x00080000, "740/750" },
581	+	{ 0xffffffff, 0x000c1101, "7400 (1.1)" },
582	+	{ 0xffff0000, 0x000c0000, "7400" },
583	+	{ 0xffff0000, 0x800c0000, "7410" },
584	+	{ 0xffffffff, 0x80000200, "7450" },
585	+	{ 0xffffffff, 0x80000201, "7450" },
586	+	{ 0xffff0000, 0x80000000, "7450" },
587	+	{ 0xffffff00, 0x80010100, "7455" },
588	+	{ 0xffffffff, 0x80010200, "7455" },
589	+	{ 0xffff0000, 0x80010000, "7455" },
590	+	{ 0xffff0000, 0x80020000, "7457" },
591	+	{ 0xffff0000, 0x80030000, "7447A" },
592	+	{ 0xffff0000, 0x80040000, "7448" },
593	+	{ 0x7fff0000, 0x00810000, "82xx" },
594	+	{ 0x7fff0000, 0x00820000, "8280" },
595	+	{ 0xffff0000, 0x00400000, "Power3 (630)" },
596	+	{ 0xffff0000, 0x00410000, "Power3 (630+)" },
597	+	{ 0xffff0000, 0x00360000, "I-star" },
598	+	{ 0xffff0000, 0x00370000, "S-star" },
599	+	{ 0xffff0000, 0x00350000, "Power4" },
600	+	{ 0xffff0000, 0x00390000, "PPC970" },
601	+	{ 0xffff0000, 0x003c0000, "PPC970FX" },
602	+	{ 0xffff0000, 0x003a0000, "POWER5" },
603	+	{ 0, 0, 0 }
604	+	};
605	+
606		char line[256];
607		while(fgets(line, 255, proc_file)) {
608		// Read line
#	Line 407 | Line 614 | int main(int argc, char **argv)
614		// Parse line
615		int i;
616		char value[256];
617	<	if (sscanf(line, "cpu : %s", value) == 1) {
618	<	if (strcmp(value, "601") == 0)
619	<	PVR = 0x00010000;
620	<	else if (strcmp(value, "603") == 0)
621	<	PVR = 0x00030000;
622	<	else if (strcmp(value, "604") == 0)
623	<	PVR = 0x00040000;
624	<	else if (strcmp(value, "603e") == 0)
625	<	PVR = 0x00060000;
626	<	else if (strcmp(value, "603ev") == 0)
627	<	PVR = 0x00070000;
421	<	else if (strcmp(value, "604e") == 0)
422	<	PVR = 0x00090000;
423	<	else if (strcmp(value, "604ev5") == 0)
424	<	PVR = 0x000a0000;
425	<	else if (strcmp(value, "750") == 0)
426	<	PVR = 0x00080000;
427	<	else if (strcmp(value, "821") == 0)
428	<	PVR = 0x00320000;
429	<	else if (strcmp(value, "860") == 0)
430	<	PVR = 0x00500000;
431	<	else
617	>	if (sscanf(line, "cpu : %[0-9A-Za-a]", value) == 1) {
618	>	// Search by name
619	>	const char *cpu_name = NULL;
620	>	for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
621	>	if (strcmp(cpu_specs[i].cpu_name, value) == 0) {
622	>	cpu_name = cpu_specs[i].cpu_name;
623	>	PVR = cpu_specs[i].pvr_value;
624	>	break;
625	>	}
626	>	}
627	>	if (cpu_name == NULL)
628		printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
629	+	else
630	+	printf("Found a PowerPC %s processor\n", cpu_name);
631		}
632		if (sscanf(line, "clock : %dMHz", &i) == 1)
633		CPUClockSpeed = BusClockSpeed = i * 1000000;
#	Line 439 | Line 637 | int main(int argc, char **argv)
637		sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
638		WarningAlert(str);
639		}
640	+
641	+	// Get actual bus frequency
642	+	proc_file = fopen("/proc/device-tree/clock-frequency", "r");
643	+	if (proc_file) {
644	+	union { uint8 b[4]; uint32 l; } value;
645	+	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
646	+	BusClockSpeed = value.l;
647	+	fclose(proc_file);
648	+	}
649	+
650	+	// Get actual timebase frequency
651	+	TimebaseSpeed = BusClockSpeed / 4;
652	+	DIR *cpus_dir;
653	+	if ((cpus_dir = opendir("/proc/device-tree/cpus")) != NULL) {
654	+	struct dirent *cpu_entry;
655	+	while ((cpu_entry = readdir(cpus_dir)) != NULL) {
656	+	if (strstr(cpu_entry->d_name, "PowerPC,") == cpu_entry->d_name) {
657	+	char timebase_freq_node[256];
658	+	sprintf(timebase_freq_node, "/proc/device-tree/cpus/%s/timebase-frequency", cpu_entry->d_name);
659	+	proc_file = fopen(timebase_freq_node, "r");
660	+	if (proc_file) {
661	+	union { uint8 b[4]; uint32 l; } value;
662	+	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
663	+	TimebaseSpeed = value.l;
664	+	fclose(proc_file);
665	+	}
666	+	}
667	+	}
668	+	closedir(cpus_dir);
669	+	}
670		#endif
671	+	// Remap any newer G4/G5 processor to plain G4 for compatibility
672	+	switch (PVR >> 16) {
673	+	case 0x8000:                            // 7450
674	+	case 0x8001:                            // 7455
675	+	case 0x8002:                            // 7457
676	+	case 0x8003:                            // 7447A
677	+	case 0x8004:                            // 7448
678	+	case 0x0039:                            //  970
679	+	case 0x003c:                            //  970FX
680	+	PVR = 0x000c0000;               // 7400
681	+	break;
682	+	}
683		D(bug("PVR: %08x (assumed)\n", PVR));
684
685		// Init system routines
#	Line 463 | Line 703 | int main(int argc, char **argv)
703		goto quit;
704		}
705
706	+	#ifndef PAGEZERO_HACK
707		// Create Low Memory area (0x0000..0x3000)
708	<	if (mmap((char *)0x0000, 0x3000, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, zero_fd, 0) == (void *)-1) {
708	>	if (vm_mac_acquire(0, 0x3000) < 0) {
709		sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
710		ErrorAlert(str);
711		goto quit;
712		}
713		lm_area_mapped = true;
714	+	#endif
715
716		// Create areas for Kernel Data
717	<	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
718	<	if (kernel_area == -1) {
719	<	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
717	>	if (!kernel_data_init())
718	>	goto quit;
719	>	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
720	>	emulator_data = &kernel_data->ed;
721	>	KernelDataAddr = KERNEL_DATA_BASE;
722	>	D(bug("Kernel Data at %p (%08x)\n", kernel_data, KERNEL_DATA_BASE));
723	>	D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed)));
724	>
725	>	// Create area for DR Cache
726	>	if (vm_mac_acquire(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
727	>	sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno));
728		ErrorAlert(str);
729		goto quit;
730		}
731	<	if (shmat(kernel_area, (void *)KERNEL_DATA_BASE, 0) < 0) {
732	<	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
731	>	dr_emulator_area_mapped = true;
732	>	if (vm_mac_acquire(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
733	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
734		ErrorAlert(str);
735		goto quit;
736		}
737	<	if (shmat(kernel_area, (void *)KERNEL_DATA2_BASE, 0) < 0) {
738	<	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
737	>	dr_cache_area_mapped = true;
738	>	#if !EMULATED_PPC
739	>	if (vm_protect((char *)DR_CACHE_BASE, DR_CACHE_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
740	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
741	>	ErrorAlert(str);
742	>	goto quit;
743	>	}
744	>	#endif
745	>	DRCacheAddr = DR_CACHE_BASE;
746	>	D(bug("DR Cache at %p\n", DRCacheAddr));
747	>
748	>	// Create area for SheepShaver data
749	>	if (!SheepMem::Init()) {
750	>	sprintf(str, GetString(STR_SHEEP_MEM_MMAP_ERR), strerror(errno));
751		ErrorAlert(str);
752		goto quit;
753		}
491	–	kernel_data = (KernelData *)0x68ffe000;
492	–	emulator_data = &kernel_data->ed;
493	–	KernelDataAddr = (uint32)kernel_data;
494	–	D(bug("Kernel Data at %p, Emulator Data at %p\n", kernel_data, emulator_data));
754
755		// Create area for Mac ROM
756	<	if (mmap((char *)ROM_BASE, ROM_AREA_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, zero_fd, 0) == (void *)-1) {
756	>	if (vm_mac_acquire(ROM_BASE, ROM_AREA_SIZE) < 0) {
757	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
758	>	ErrorAlert(str);
759	>	goto quit;
760	>	}
761	>	ROMBaseHost = Mac2HostAddr(ROM_BASE);
762	>	#if !EMULATED_PPC
763	>	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
764		sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
765		ErrorAlert(str);
766		goto quit;
767		}
768	+	#endif
769		rom_area_mapped = true;
770	<	D(bug("ROM area at %08x\n", ROM_BASE));
770	>	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROM_BASE));
771
772		// Create area for Mac RAM
773		RAMSize = PrefsFindInt32("ramsize");
#	Line 509 | Line 776 | int main(int argc, char **argv)
776		RAMSize = 8*1024*1024;
777		}
778
779	<	mmap_RAMBase = mmap((void *)0x20000000, RAMSize, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, zero_fd, 0);
513	<	if (mmap_RAMBase == (void *)-1) {
779	>	if (vm_mac_acquire(RAM_BASE, RAMSize) < 0) {
780		sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
781		ErrorAlert(str);
782		goto quit;
783		}
784	<	RAMBase = (uint32)mmap_RAMBase;
784	>	RAMBaseHost = Mac2HostAddr(RAM_BASE);
785	>	#if !EMULATED_PPC
786	>	if (vm_protect(RAMBaseHost, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
787	>	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
788	>	ErrorAlert(str);
789	>	goto quit;
790	>	}
791	>	#endif
792	>	RAMBase = RAM_BASE;
793		ram_area_mapped = true;
794	<	D(bug("RAM area at %08x\n", RAMBase));
794	>	D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase));
795
796		if (RAMBase > ROM_BASE) {
797		ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
#	Line 540 | Line 814 | int main(int argc, char **argv)
814		rom_tmp = new uint8[ROM_SIZE];
815		actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
816		close(rom_fd);
817	<	if (actual == ROM_SIZE) {
818	<	// Plain ROM image
819	<	memcpy((void *)ROM_BASE, rom_tmp, ROM_SIZE);
820	<	delete[] rom_tmp;
547	<	} else {
548	<	if (strncmp((char *)rom_tmp, "<CHRP-BOOT>", 11) == 0) {
549	<	// CHRP compressed ROM image
550	<	D(bug("CHRP ROM image\n"));
551	<	uint32 lzss_offset, lzss_size;
552	<
553	<	char *s = strstr((char *)rom_tmp, "constant lzss-offset");
554	<	if (s == NULL) {
555	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
556	<	goto quit;
557	<	}
558	<	s -= 7;
559	<	if (sscanf(s, "%06x", &lzss_offset) != 1) {
560	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
561	<	goto quit;
562	<	}
563	<	s = strstr((char *)rom_tmp, "constant lzss-size");
564	<	if (s == NULL) {
565	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
566	<	goto quit;
567	<	}
568	<	s -= 7;
569	<	if (sscanf(s, "%06x", &lzss_size) != 1) {
570	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
571	<	goto quit;
572	<	}
573	<	D(bug("Offset of compressed data: %08x\n", lzss_offset));
574	<	D(bug("Size of compressed data: %08x\n", lzss_size));
575	<
576	<	D(bug("Uncompressing ROM...\n"));
577	<	decode_lzss(rom_tmp + lzss_offset, (uint8 *)ROM_BASE, lzss_size);
578	<	delete[] rom_tmp;
579	<	} else if (rom_size != 4*1024*1024) {
817	>
818	>	// Decode Mac ROM
819	>	if (!DecodeROM(rom_tmp, actual)) {
820	>	if (rom_size != 4*1024*1024) {
821		ErrorAlert(GetString(STR_ROM_SIZE_ERR));
822		goto quit;
823		} else {
#	Line 584 | Line 825 | int main(int argc, char **argv)
825		goto quit;
826		}
827		}
828	+	delete[] rom_tmp;
829
830	<	// Load NVRAM
831	<	XPRAMInit();
590	<
591	<	// Set boot volume
592	<	drive = PrefsFindInt32("bootdrive");
593	<	XPRAM[0x1378] = i16 >> 8;
594	<	XPRAM[0x1379] = i16 & 0xff;
595	<	driver = PrefsFindInt32("bootdriver");
596	<	XPRAM[0x137a] = i16 >> 8;
597	<	XPRAM[0x137b] = i16 & 0xff;
598	<
599	<	// Create BootGlobs at top of Mac memory
600	<	memset((void *)(RAMBase + RAMSize - 4096), 0, 4096);
601	<	BootGlobsAddr = RAMBase + RAMSize - 0x1c;
602	<	boot_globs = (uint32 *)BootGlobsAddr;
603	<	boot_globs[-5] = htonl(RAMBase + RAMSize);      // MemTop
604	<	boot_globs[0] = htonl(RAMBase);                         // First RAM bank
605	<	boot_globs[1] = htonl(RAMSize);
606	<	boot_globs[2] = htonl((uint32)-1);                      // End of bank table
607	<
608	<	// Init drivers
609	<	SonyInit();
610	<	DiskInit();
611	<	CDROMInit();
612	<	SCSIInit();
613	<
614	<	// Init external file system
615	<	ExtFSInit();
616	<
617	<	// Init audio
618	<	AudioInit();
619	<
620	<	// Init network
621	<	EtherInit();
622	<
623	<	// Init serial ports
624	<	SerialInit();
625	<
626	<	// Init Time Manager
627	<	TimerInit();
628	<
629	<	// Init clipboard
630	<	ClipInit();
631	<
632	<	// Init video
633	<	if (!VideoInit())
634	<	goto quit;
635	<
636	<	// Install ROM patches
637	<	if (!PatchROM()) {
638	<	ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
830	>	// Initialize everything
831	>	if (!InitAll())
832		goto quit;
833	<	}
833	>	D(bug("Initialization complete\n"));
834
835		// Clear caches (as we loaded and patched code) and write protect ROM
836		#if !EMULATED_PPC
837	<	MakeExecutable(0, (void *)ROM_BASE, ROM_AREA_SIZE);
645	<	#endif
646	<	mprotect((char *)ROM_BASE, ROM_AREA_SIZE, PROT_EXEC | PROT_READ);
647	<
648	<	// Initialize Kernel Data
649	<	memset(kernel_data, 0, sizeof(KernelData));
650	<	if (ROMType == ROMTYPE_NEWWORLD) {
651	<	static uint32 of_dev_tree[4] = {0, 0, 0, 0};
652	<	static uint8 vector_lookup_tbl[128];
653	<	static uint8 vector_mask_tbl[64];
654	<	memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
655	<	memset(vector_lookup_tbl, 0, 128);
656	<	memset(vector_mask_tbl, 0, 64);
657	<	kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
658	<	kernel_data->v[0xb84 >> 2] = htonl((uint32)of_dev_tree);        // OF device tree base
659	<	kernel_data->v[0xb90 >> 2] = htonl((uint32)vector_lookup_tbl);
660	<	kernel_data->v[0xb94 >> 2] = htonl((uint32)vector_mask_tbl);
661	<	kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE);                           // OpenPIC base
662	<	kernel_data->v[0xbb0 >> 2] = htonl(0);                                          // ADB base
663	<	kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
664	<	kernel_data->v[0xc24 >> 2] = htonl(RAMSize);
665	<	kernel_data->v[0xc30 >> 2] = htonl(RAMSize);
666	<	kernel_data->v[0xc34 >> 2] = htonl(RAMSize);
667	<	kernel_data->v[0xc38 >> 2] = htonl(0x00010020);
668	<	kernel_data->v[0xc3c >> 2] = htonl(0x00200001);
669	<	kernel_data->v[0xc40 >> 2] = htonl(0x00010000);
670	<	kernel_data->v[0xc50 >> 2] = htonl(RAMBase);
671	<	kernel_data->v[0xc54 >> 2] = htonl(RAMSize);
672	<	kernel_data->v[0xf60 >> 2] = htonl(PVR);
673	<	kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed);
674	<	kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed);
675	<	kernel_data->v[0xf6c >> 2] = htonl(CPUClockSpeed);
676	<	} else {
677	<	kernel_data->v[0xc80 >> 2] = htonl(RAMSize);
678	<	kernel_data->v[0xc84 >> 2] = htonl(RAMSize);
679	<	kernel_data->v[0xc90 >> 2] = htonl(RAMSize);
680	<	kernel_data->v[0xc94 >> 2] = htonl(RAMSize);
681	<	kernel_data->v[0xc98 >> 2] = htonl(0x00010020);
682	<	kernel_data->v[0xc9c >> 2] = htonl(0x00200001);
683	<	kernel_data->v[0xca0 >> 2] = htonl(0x00010000);
684	<	kernel_data->v[0xcb0 >> 2] = htonl(RAMBase);
685	<	kernel_data->v[0xcb4 >> 2] = htonl(RAMSize);
686	<	kernel_data->v[0xf80 >> 2] = htonl(PVR);
687	<	kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed);
688	<	kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed);
689	<	kernel_data->v[0xf8c >> 2] = htonl(CPUClockSpeed);
690	<	}
691	<
692	<	// Initialize extra low memory
693	<	D(bug("Initializing Low Memory...\n"));
694	<	memset(NULL, 0, 0x3000);
695	<	WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h'));                  // Signature to detect SheepShaver
696	<	WriteMacInt32(XLM_KERNEL_DATA, (uint32)kernel_data);                    // For trap replacement routines
697	<	WriteMacInt32(XLM_PVR, PVR);                                                                    // Theoretical PVR
698	<	WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed);                                    // For DriverServicesLib patch
699	<	WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN);                // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
700	<	#if !EMULATED_PPC
701	<	WriteMacInt32(XLM_TOC, (uint32)TOC);                                                    // TOC pointer of emulator
702	<	WriteMacInt32(XLM_ETHER_INIT, (uint32)InitStreamModule);                // DLPI ethernet driver functions
703	<	WriteMacInt32(XLM_ETHER_TERM, (uint32)TerminateStreamModule);
704	<	WriteMacInt32(XLM_ETHER_OPEN, (uint32)ether_open);
705	<	WriteMacInt32(XLM_ETHER_CLOSE, (uint32)ether_close);
706	<	WriteMacInt32(XLM_ETHER_WPUT, (uint32)ether_wput);
707	<	WriteMacInt32(XLM_ETHER_RSRV, (uint32)ether_rsrv);
708	<	WriteMacInt32(XLM_VIDEO_DOIO, (uint32)VideoDoDriverIO);
837	>	flush_icache_range(ROM_BASE, ROM_BASE + ROM_AREA_SIZE);
838		#endif
839	<	D(bug("Low Memory initialized\n"));
839	>	vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
840
841		// Start 60Hz thread
842	+	tick_thread_cancel = false;
843		tick_thread_active = (pthread_create(&tick_thread, NULL, tick_func, NULL) == 0);
844		D(bug("Tick thread installed (%ld)\n", tick_thread));
845
846		// Start NVRAM watchdog thread
847		memcpy(last_xpram, XPRAM, XPRAM_SIZE);
848	+	nvram_thread_cancel = false;
849		nvram_thread_active = (pthread_create(&nvram_thread, NULL, nvram_func, NULL) == 0);
850		D(bug("NVRAM thread installed (%ld)\n", nvram_thread));
851
852		#if !EMULATED_PPC
722	–	// Create and install stacks for signal handlers
723	–	sig_stack = malloc(SIG_STACK_SIZE);
724	–	D(bug("Signal stack at %p\n", sig_stack));
725	–	if (sig_stack == NULL) {
726	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
727	–	goto quit;
728	–	}
729	–	extra_stack = malloc(SIG_STACK_SIZE);
730	–	D(bug("Extra stack at %p\n", extra_stack));
731	–	if (extra_stack == NULL) {
732	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
733	–	goto quit;
734	–	}
735	–	struct sigaltstack new_stack;
736	–	new_stack.ss_sp = sig_stack;
737	–	new_stack.ss_flags = 0;
738	–	new_stack.ss_size = SIG_STACK_SIZE;
739	–	if (sigaltstack(&new_stack, NULL) < 0) {
740	–	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
741	–	ErrorAlert(str);
742	–	goto quit;
743	–	}
744	–	#endif
745	–
746	–	#if !EMULATED_PPC
747	–	// Install SIGSEGV handler
748	–	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
749	–	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
750	–	sigsegv_action.sa_handler = (__sighandler_t)sigsegv_handler;
751	–	sigsegv_action.sa_flags = SA_ONSTACK;
752	–	sigsegv_action.sa_restorer = NULL;
753	–	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
754	–	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
755	–	ErrorAlert(str);
756	–	goto quit;
757	–	}
758	–
853		// Install SIGILL handler
854		sigemptyset(&sigill_action.sa_mask);    // Block interrupts during ILL handling
855		sigaddset(&sigill_action.sa_mask, SIGUSR2);
856	<	sigill_action.sa_handler = (__sighandler_t)sigill_handler;
857	<	sigill_action.sa_flags = SA_ONSTACK;
856	>	sigill_action.sa_sigaction = sigill_handler;
857	>	sigill_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
858	>	#ifdef HAVE_SIGNAL_SA_RESTORER
859		sigill_action.sa_restorer = NULL;
860	+	#endif
861		if (sigaction(SIGILL, &sigill_action, NULL) < 0) {
862		sprintf(str, GetString(STR_SIGILL_INSTALL_ERR), strerror(errno));
863		ErrorAlert(str);
864		goto quit;
865		}
866	+	#endif
867
868	+	#if !EMULATED_PPC
869		// Install interrupt signal handler
870		sigemptyset(&sigusr2_action.sa_mask);
871	<	sigusr2_action.sa_handler = (__sighandler_t)sigusr2_handler;
872	<	sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART;
871	>	sigusr2_action.sa_sigaction = sigusr2_handler_init;
872	>	sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART | SA_SIGINFO;
873	>	#ifdef HAVE_SIGNAL_SA_RESTORER
874		sigusr2_action.sa_restorer = NULL;
875	+	#endif
876		if (sigaction(SIGUSR2, &sigusr2_action, NULL) < 0) {
877		sprintf(str, GetString(STR_SIGUSR2_INSTALL_ERR), strerror(errno));
878		ErrorAlert(str);
#	Line 797 | Line 897 | quit:
897
898		static void Quit(void)
899		{
900	+	#if EMULATED_PPC
901	+	// Exit PowerPC emulation
902	+	exit_emul_ppc();
903	+	#endif
904	+
905		// Stop 60Hz thread
906		if (tick_thread_active) {
907	+	tick_thread_cancel = true;
908		pthread_cancel(tick_thread);
909		pthread_join(tick_thread, NULL);
910		}
911
912		// Stop NVRAM watchdog thread
913		if (nvram_thread_active) {
914	+	nvram_thread_cancel = true;
915		pthread_cancel(nvram_thread);
916		pthread_join(nvram_thread, NULL);
917		}
918
919		#if !EMULATED_PPC
920	<	// Uninstall SIGSEGV handler
920	>	// Uninstall SIGSEGV and SIGBUS handlers
921		sigemptyset(&sigsegv_action.sa_mask);
922		sigsegv_action.sa_handler = SIG_DFL;
923		sigsegv_action.sa_flags = 0;
924		sigaction(SIGSEGV, &sigsegv_action, NULL);
925	+	sigaction(SIGBUS, &sigsegv_action, NULL);
926
927		// Uninstall SIGILL handler
928		sigemptyset(&sigill_action.sa_mask);
929		sigill_action.sa_handler = SIG_DFL;
930		sigill_action.sa_flags = 0;
931		sigaction(SIGILL, &sigill_action, NULL);
824	–	#endif
825	–
826	–	// Save NVRAM
827	–	XPRAMExit();
828	–
829	–	// Exit clipboard
830	–	ClipExit();
831	–
832	–	// Exit Time Manager
833	–	TimerExit();
932
933	<	// Exit serial
934	<	SerialExit();
935	<
936	<	// Exit network
937	<	EtherExit();
938	<
841	<	// Exit audio
842	<	AudioExit();
843	<
844	<	// Exit video
845	<	VideoExit();
933	>	// Delete stacks for signal handlers
934	>	if (sig_stack.ss_sp)
935	>	free(sig_stack.ss_sp);
936	>	if (extra_stack.ss_sp)
937	>	free(extra_stack.ss_sp);
938	>	#endif
939
940	<	// Exit external file system
941	<	ExtFSExit();
940	>	// Deinitialize everything
941	>	ExitAll();
942
943	<	// Exit drivers
944	<	SCSIExit();
852	<	CDROMExit();
853	<	DiskExit();
854	<	SonyExit();
943	>	// Delete SheepShaver globals
944	>	SheepMem::Exit();
945
946		// Delete RAM area
947		if (ram_area_mapped)
948	<	munmap(mmap_RAMBase, RAMSize);
948	>	vm_mac_release(RAM_BASE, RAMSize);
949
950		// Delete ROM area
951		if (rom_area_mapped)
952	<	munmap((char *)ROM_BASE, ROM_AREA_SIZE);
952	>	vm_mac_release(ROM_BASE, ROM_AREA_SIZE);
953	>
954	>	// Delete DR cache areas
955	>	if (dr_emulator_area_mapped)
956	>	vm_mac_release(DR_EMULATOR_BASE, DR_EMULATOR_SIZE);
957	>	if (dr_cache_area_mapped)
958	>	vm_mac_release(DR_CACHE_BASE, DR_CACHE_SIZE);
959
960		// Delete Kernel Data area
961	<	if (kernel_area >= 0) {
866	<	shmdt((void *)KERNEL_DATA_BASE);
867	<	shmdt((void *)KERNEL_DATA2_BASE);
868	<	shmctl(kernel_area, IPC_RMID, NULL);
869	<	}
961	>	kernel_data_exit();
962
963		// Delete Low Memory area
964		if (lm_area_mapped)
965	<	munmap((char *)0x0000, 0x3000);
965	>	vm_mac_release(0, 0x3000);
966
967		// Close /dev/zero
968		if (zero_fd > 0)
#	Line 888 | Line 980 | static void Quit(void)
980		#endif
981
982		// Close X11 server connection
983	+	#ifndef USE_SDL_VIDEO
984		if (x_display)
985		XCloseDisplay(x_display);
986	+	#endif
987
988		exit(0);
989		}
990
991
992		/*
993	+	*  Initialize Kernel Data segments
994	+	*/
995	+
996	+	#if defined(__CYGWIN__)
997	+	#define WIN32_LEAN_AND_MEAN
998	+	#include <windows.h>
999	+
1000	+	static HANDLE kernel_handle;                            // Shared memory handle for Kernel Data
1001	+	static DWORD allocation_granule;                        // Minimum size of allocateable are (64K)
1002	+	static DWORD kernel_area_size;                          // Size of Kernel Data area
1003	+	#endif
1004	+
1005	+	static bool kernel_data_init(void)
1006	+	{
1007	+	char str[256];
1008	+	#ifdef _WIN32
1009	+	SYSTEM_INFO si;
1010	+	GetSystemInfo(&si);
1011	+	allocation_granule = si.dwAllocationGranularity;
1012	+	kernel_area_size = (KERNEL_AREA_SIZE + allocation_granule - 1) & -allocation_granule;
1013	+
1014	+	char rcs[10];
1015	+	LPVOID kernel_addr;
1016	+	kernel_handle = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, kernel_area_size, NULL);
1017	+	if (kernel_handle == NULL) {
1018	+	sprintf(rcs, "%d", GetLastError());
1019	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), rcs);
1020	+	ErrorAlert(str);
1021	+	return false;
1022	+	}
1023	+	kernel_addr = (LPVOID)Mac2HostAddr(KERNEL_DATA_BASE & -allocation_granule);
1024	+	if (MapViewOfFileEx(kernel_handle, FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, kernel_area_size, kernel_addr) != kernel_addr) {
1025	+	sprintf(rcs, "%d", GetLastError());
1026	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), rcs);
1027	+	ErrorAlert(str);
1028	+	return false;
1029	+	}
1030	+	kernel_addr = (LPVOID)Mac2HostAddr(KERNEL_DATA2_BASE & -allocation_granule);
1031	+	if (MapViewOfFileEx(kernel_handle, FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, kernel_area_size, kernel_addr) != kernel_addr) {
1032	+	sprintf(rcs, "%d", GetLastError());
1033	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), rcs);
1034	+	ErrorAlert(str);
1035	+	return false;
1036	+	}
1037	+	#else
1038	+	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
1039	+	if (kernel_area == -1) {
1040	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
1041	+	ErrorAlert(str);
1042	+	return false;
1043	+	}
1044	+	if (shmat(kernel_area, Mac2HostAddr(KERNEL_DATA_BASE), 0) < 0) {
1045	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
1046	+	ErrorAlert(str);
1047	+	return false;
1048	+	}
1049	+	if (shmat(kernel_area, Mac2HostAddr(KERNEL_DATA2_BASE), 0) < 0) {
1050	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
1051	+	ErrorAlert(str);
1052	+	return false;
1053	+	}
1054	+	#endif
1055	+	return true;
1056	+	}
1057	+
1058	+
1059	+	/*
1060	+	*  Deallocate Kernel Data segments
1061	+	*/
1062	+
1063	+	static void kernel_data_exit(void)
1064	+	{
1065	+	#ifdef _WIN32
1066	+	if (kernel_handle) {
1067	+	UnmapViewOfFile(Mac2HostAddr(KERNEL_DATA_BASE & -allocation_granule));
1068	+	UnmapViewOfFile(Mac2HostAddr(KERNEL_DATA2_BASE & -allocation_granule));
1069	+	CloseHandle(kernel_handle);
1070	+	}
1071	+	#else
1072	+	if (kernel_area >= 0) {
1073	+	shmdt(Mac2HostAddr(KERNEL_DATA_BASE));
1074	+	shmdt(Mac2HostAddr(KERNEL_DATA2_BASE));
1075	+	shmctl(kernel_area, IPC_RMID, NULL);
1076	+	}
1077	+	#endif
1078	+	}
1079	+
1080	+
1081	+	/*
1082		*  Jump into Mac ROM, start 680x0 emulator
1083		*/
1084
1085		#if EMULATED_PPC
903	–	extern void emul_ppc(uint32 start);
904	–	extern void init_emul_ppc(void);
1086		void jump_to_rom(uint32 entry)
1087		{
1088		init_emul_ppc();
#	Line 970 | Line 1151 | void Execute68kTrap(uint16 trap, M68kReg
1151
1152
1153		/*
973	–	*  Execute PPC code from EMUL_OP routine (real mode switch)
974	–	*/
975	–
976	–	void ExecutePPC(void (*func)())
977	–	{
978	–	uint32 tvect[2] = {(uint32)func, 0};    // Fake TVECT
979	–	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
980	–	M68kRegisters r;
981	–	Execute68k((uint32)&desc, &r);
982	–	}
983	–
984	–
985	–	/*
1154		*  Quit emulator (cause return from jump_to_rom)
1155		*/
1156
#	Line 997 | Line 1165 | void QuitEmulator(void)
1165
1166
1167		/*
1000	–	*  Pause/resume emulator
1001	–	*/
1002	–
1003	–	void PauseEmulator(void)
1004	–	{
1005	–	pthread_kill(emul_thread, SIGSTOP);
1006	–	}
1007	–
1008	–	void ResumeEmulator(void)
1009	–	{
1010	–	pthread_kill(emul_thread, SIGCONT);
1011	–	}
1012	–
1013	–
1014	–	/*
1168		*  Dump 68k registers
1169		*/
1170
#	Line 1039 | Line 1192 | void Dump68kRegs(M68kRegisters *r)
1192		*  Make code executable
1193		*/
1194
1195	<	void MakeExecutable(int dummy, void *start, uint32 length)
1195	>	void MakeExecutable(int dummy, uint32 start, uint32 length)
1196		{
1197	<	#if !EMULATED_PPC
1045	<	if (((uint32)start >= ROM_BASE) && ((uint32)start < (ROM_BASE + ROM_SIZE)))
1197	>	if ((start >= ROM_BASE) && (start < (ROM_BASE + ROM_SIZE)))
1198		return;
1199	<	flush_icache_range(start, (void *)((uint32)start + length));
1199	>	#if EMULATED_PPC
1200	>	FlushCodeCache(start, start + length);
1201	>	#else
1202	>	flush_icache_range(start, start + length);
1203		#endif
1204		}
1205
1206
1207		/*
1208	<	*  Patch things after system startup (gets called by disk driver accRun routine)
1208	>	*  NVRAM watchdog thread (saves NVRAM every minute)
1209		*/
1210
1211	<	void PatchAfterStartup(void)
1211	>	static void nvram_watchdog(void)
1212		{
1213	<	ExecutePPC(VideoInstallAccel);
1214	<	InstallExtFS();
1213	>	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1214	>	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1215	>	SaveXPRAM();
1216	>	}
1217		}
1218
1062	–
1063	–	/*
1064	–	*  NVRAM watchdog thread (saves NVRAM every minute)
1065	–	*/
1066	–
1219		static void *nvram_func(void *arg)
1220		{
1221	<	struct timespec req = {60, 0};  // 1 minute
1222	<
1223	<	for (;;) {
1224	<	pthread_testcancel();
1073	<	nanosleep(&req, NULL);
1074	<	pthread_testcancel();
1075	<	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1076	<	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1077	<	SaveXPRAM();
1078	<	}
1221	>	while (!nvram_thread_cancel) {
1222	>	for (int i=0; i<60 && !nvram_thread_cancel; i++)
1223	>	Delay_usec(999999);             // Only wait 1 second so we quit promptly when nvram_thread_cancel becomes true
1224	>	nvram_watchdog();
1225		}
1226		return NULL;
1227		}
#	Line 1088 | Line 1234 | static void *nvram_func(void *arg)
1234		static void *tick_func(void *arg)
1235		{
1236		int tick_counter = 0;
1237	<	struct timespec req = {0, 16625000};
1237	>	uint64 start = GetTicks_usec();
1238	>	int64 ticks = 0;
1239	>	uint64 next = GetTicks_usec();
1240
1241	<	for (;;) {
1241	>	while (!tick_thread_cancel) {
1242
1243		// Wait
1244	<	nanosleep(&req, NULL);
1244	>	next += 16625;
1245	>	int64 delay = next - GetTicks_usec();
1246	>	if (delay > 0)
1247	>	Delay_usec(delay);
1248	>	else if (delay < -16625)
1249	>	next = GetTicks_usec();
1250	>	ticks++;
1251
1252		#if !EMULATED_PPC
1253		// Did we crash?
1254		if (emul_thread_fatal) {
1255
1256		// Yes, dump registers
1257	<	pt_regs *r = (pt_regs *)&sigsegv_regs;
1257	>	sigregs *r = &sigsegv_regs;
1258		char str[256];
1259	<	sprintf(str, "SIGSEGV\n"
1259	>	if (crash_reason == NULL)
1260	>	crash_reason = "SIGSEGV";
1261	>	sprintf(str, "%s\n"
1262		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1263		"  xer %08lx     cr %08lx  \n"
1264		"   r0 %08lx     r1 %08lx     r2 %08lx     r3 %08lx\n"
#	Line 1113 | Line 1269 | static void *tick_func(void *arg)
1269		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
1270		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
1271		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
1272	+	crash_reason,
1273		r->nip, r->link, r->ctr, r->msr,
1274		r->xer, r->ccr,
1275		r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
#	Line 1148 | Line 1305 | static void *tick_func(void *arg)
1305		TriggerInterrupt();
1306		}
1307		}
1308	+
1309	+	uint64 end = GetTicks_usec();
1310	+	D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1311		return NULL;
1312		}
1313
#	Line 1158 | Line 1318 | static void *tick_func(void *arg)
1318
1319		void Set_pthread_attr(pthread_attr_t *attr, int priority)
1320		{
1321	<	// nothing to do
1321	>	#ifdef HAVE_PTHREADS
1322	>	pthread_attr_init(attr);
1323	>	#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING)
1324	>	// Some of these only work for superuser
1325	>	if (geteuid() == 0) {
1326	>	pthread_attr_setinheritsched(attr, PTHREAD_EXPLICIT_SCHED);
1327	>	pthread_attr_setschedpolicy(attr, SCHED_FIFO);
1328	>	struct sched_param fifo_param;
1329	>	fifo_param.sched_priority = ((sched_get_priority_min(SCHED_FIFO) +
1330	>	sched_get_priority_max(SCHED_FIFO)) / 2 +
1331	>	priority);
1332	>	pthread_attr_setschedparam(attr, &fifo_param);
1333	>	}
1334	>	if (pthread_attr_setscope(attr, PTHREAD_SCOPE_SYSTEM) != 0) {
1335	>	#ifdef PTHREAD_SCOPE_BOUND_NP
1336	>	// If system scope is not available (eg. we're not running
1337	>	// with CAP_SCHED_MGT capability on an SGI box), try bound
1338	>	// scope.  It exposes pthread scheduling to the kernel,
1339	>	// without setting realtime priority.
1340	>	pthread_attr_setscope(attr, PTHREAD_SCOPE_BOUND_NP);
1341	>	#endif
1342	>	}
1343	>	#endif
1344	>	#endif
1345		}
1346
1347
#	Line 1166 | Line 1349 | void Set_pthread_attr(pthread_attr_t *at
1349		*  Mutexes
1350		*/
1351
1352	+	#ifdef HAVE_PTHREADS
1353	+
1354	+	struct B2_mutex {
1355	+	B2_mutex() {
1356	+	pthread_mutexattr_t attr;
1357	+	pthread_mutexattr_init(&attr);
1358	+	// Initialize the mutex for priority inheritance --
1359	+	// required for accurate timing.
1360	+	#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__)
1361	+	pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
1362	+	#endif
1363	+	#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
1364	+	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL);
1365	+	#endif
1366	+	#ifdef HAVE_PTHREAD_MUTEXATTR_SETPSHARED
1367	+	pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_PRIVATE);
1368	+	#endif
1369	+	pthread_mutex_init(&m, &attr);
1370	+	pthread_mutexattr_destroy(&attr);
1371	+	}
1372	+	~B2_mutex() {
1373	+	pthread_mutex_trylock(&m); // Make sure it's locked before
1374	+	pthread_mutex_unlock(&m);  // unlocking it.
1375	+	pthread_mutex_destroy(&m);
1376	+	}
1377	+	pthread_mutex_t m;
1378	+	};
1379	+
1380	+	B2_mutex *B2_create_mutex(void)
1381	+	{
1382	+	return new B2_mutex;
1383	+	}
1384	+
1385	+	void B2_lock_mutex(B2_mutex *mutex)
1386	+	{
1387	+	pthread_mutex_lock(&mutex->m);
1388	+	}
1389	+
1390	+	void B2_unlock_mutex(B2_mutex *mutex)
1391	+	{
1392	+	pthread_mutex_unlock(&mutex->m);
1393	+	}
1394	+
1395	+	void B2_delete_mutex(B2_mutex *mutex)
1396	+	{
1397	+	delete mutex;
1398	+	}
1399	+
1400	+	#else
1401	+
1402		struct B2_mutex {
1403		int dummy;
1404		};
#	Line 1188 | Line 1421 | void B2_delete_mutex(B2_mutex *mutex)
1421		delete mutex;
1422		}
1423
1424	+	#endif
1425	+
1426
1427		/*
1428		*  Trigger signal USR2 from another thread
1429		*/
1430
1431	+	#if !EMULATED_PPC
1432		void TriggerInterrupt(void)
1433		{
1434	<	#if EMULATED_PPC
1435	<	WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
1200	<	#else
1201	<	#if 0
1202	<	WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
1203	<	#else
1204	<	if (ready_for_signals)
1434	>	if (ready_for_signals) {
1435	>	idle_resume();
1436		pthread_kill(emul_thread, SIGUSR2);
1437	<	#endif
1207	<	#endif
1437	>	}
1438		}
1439	+	#endif
1440
1441
1442		/*
#	Line 1231 | Line 1462 | void ClearInterruptFlag(uint32 flag)
1462
1463		void DisableInterrupt(void)
1464		{
1465	+	#if EMULATED_PPC
1466	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) + 1);
1467	+	#else
1468		atomic_add((int *)XLM_IRQ_NEST, 1);
1469	+	#endif
1470		}
1471
1472
#	Line 1241 | Line 1476 | void DisableInterrupt(void)
1476
1477		void EnableInterrupt(void)
1478		{
1479	+	#if EMULATED_PPC
1480	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) - 1);
1481	+	#else
1482		atomic_add((int *)XLM_IRQ_NEST, -1);
1483	+	#endif
1484		}
1485
1486
1248	–	#if !EMULATED_PPC
1487		/*
1488		*  USR2 handler
1489		*/
1490
1491	<	static void sigusr2_handler(int sig, sigcontext_struct *sc)
1491	>	#if !EMULATED_PPC
1492	>	void sigusr2_handler(int sig, siginfo_t *sip, void *scp)
1493		{
1494	<	pt_regs *r = sc->regs;
1494	>	machine_regs *r = MACHINE_REGISTERS(scp);
1495	>
1496	>	#ifdef SYSTEM_CLOBBERS_R2
1497	>	// Restore pointer to Thread Local Storage
1498	>	set_r2(TOC);
1499	>	#endif
1500	>	#ifdef SYSTEM_CLOBBERS_R13
1501	>	// Restore pointer to .sdata section
1502	>	set_r13(R13);
1503	>	#endif
1504	>
1505	>	#ifdef USE_SDL_VIDEO
1506	>	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
1507	>	SDL_PumpEvents();
1508	>	#endif
1509
1510		// Do nothing if interrupts are disabled
1511		if (*(int32 *)XLM_IRQ_NEST > 0)
#	Line 1266 | Line 1519 | static void sigusr2_handler(int sig, sig
1519		case MODE_68K:
1520		// 68k emulator active, trigger 68k interrupt level 1
1521		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1522	<	r->ccr |= ntohl(kernel_data->v[0x674 >> 2]);
1522	>	r->cr() |= ntohl(kernel_data->v[0x674 >> 2]);
1523		break;
1524
1525		#if INTERRUPTS_IN_NATIVE_MODE
1526		case MODE_NATIVE:
1527		// 68k emulator inactive, in nanokernel?
1528	<	if (r->gpr[1] != KernelDataAddr) {
1528	>	if (r->gpr(1) != KernelDataAddr) {
1529	>
1530	>	// Set extra stack for SIGSEGV handler
1531	>	sigaltstack(&extra_stack, NULL);
1532	>
1533		// Prepare for 68k interrupt level 1
1534		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1535		WriteMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc, ReadMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc) | ntohl(kernel_data->v[0x674 >> 2]));
1536
1537		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
1538	<	atomic_add((int32 *)XLM_IRQ_NEST, 1);
1538	>	DisableInterrupt();
1539		if (ROMType == ROMTYPE_NEWWORLD)
1540		ppc_interrupt(ROM_BASE + 0x312b1c, KernelDataAddr);
1541		else
1542		ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
1543	+
1544	+	// Reset normal stack
1545	+	sigaltstack(&sig_stack, NULL);
1546		}
1547		break;
1548		#endif
#	Line 1293 | Line 1553 | static void sigusr2_handler(int sig, sig
1553		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1554
1555		// Set extra stack for SIGSEGV handler
1556	<	struct sigaltstack new_stack;
1297	<	new_stack.ss_sp = extra_stack;
1298	<	new_stack.ss_flags = 0;
1299	<	new_stack.ss_size = SIG_STACK_SIZE;
1300	<	sigaltstack(&new_stack, NULL);
1556	>	sigaltstack(&extra_stack, NULL);
1557		#if 1
1558		// Execute full 68k interrupt routine
1559		M68kRegisters r;
#	Line 1319 | Line 1575 | static void sigusr2_handler(int sig, sig
1575		if (InterruptFlags & INTFLAG_VIA) {
1576		ClearInterruptFlag(INTFLAG_VIA);
1577		ADBInterrupt();
1578	<	ExecutePPC(VideoVBL);
1578	>	ExecuteNative(NATIVE_VIDEO_VBL);
1579		}
1580		}
1581		#endif
1582	<	// Reset normal signal stack
1583	<	new_stack.ss_sp = sig_stack;
1328	<	new_stack.ss_flags = 0;
1329	<	new_stack.ss_size = SIG_STACK_SIZE;
1330	<	sigaltstack(&new_stack, NULL);
1582	>	// Reset normal stack
1583	>	sigaltstack(&sig_stack, NULL);
1584		}
1585		break;
1586		#endif
1334	–
1587		}
1588		}
1589	+	#endif
1590
1591
1592		/*
1593		*  SIGSEGV handler
1594		*/
1595
1596	<	static void sigsegv_handler(int sig, sigcontext_struct *sc)
1596	>	#if !EMULATED_PPC
1597	>	static void sigsegv_handler(int sig, siginfo_t *sip, void *scp)
1598		{
1599	<	pt_regs *r = sc->regs;
1599	>	machine_regs *r = MACHINE_REGISTERS(scp);
1600	>
1601	>	// Get effective address
1602	>	uint32 addr = r->dar();
1603	>
1604	>	#ifdef SYSTEM_CLOBBERS_R2
1605	>	// Restore pointer to Thread Local Storage
1606	>	set_r2(TOC);
1607	>	#endif
1608	>	#ifdef SYSTEM_CLOBBERS_R13
1609	>	// Restore pointer to .sdata section
1610	>	set_r13(R13);
1611	>	#endif
1612	>
1613	>	#if ENABLE_VOSF
1614	>	// Handle screen fault.
1615	>	extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
1616	>	if (Screen_fault_handler((sigsegv_address_t)addr, (sigsegv_address_t)r->pc()))
1617	>	return;
1618	>	#endif
1619	>
1620		num_segv++;
1621
1622	<	// Fault in Mac ROM or RAM?
1623	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
1622	>	// Fault in Mac ROM or RAM or DR Cache?
1623	>	bool mac_fault = (r->pc() >= ROM_BASE) && (r->pc() < (ROM_BASE + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize)) || (r->pc() >= DR_CACHE_BASE && r->pc() < (DR_CACHE_BASE + DR_CACHE_SIZE));
1624		if (mac_fault) {
1625
1352	–	// Get opcode and divide into fields
1353	–	uint32 opcode = *((uint32 *)r->nip);
1354	–	uint32 primop = opcode >> 26;
1355	–	uint32 exop = (opcode >> 1) & 0x3ff;
1356	–	uint32 ra = (opcode >> 16) & 0x1f;
1357	–	uint32 rb = (opcode >> 11) & 0x1f;
1358	–	uint32 rd = (opcode >> 21) & 0x1f;
1359	–	int32 imm = (int16)(opcode & 0xffff);
1360	–
1626		// "VM settings" during MacOS 8 installation
1627	<	if (r->nip == ROM_BASE + 0x488160 && r->gpr[20] == 0xf8000000) {
1628	<	r->nip += 4;
1629	<	r->gpr[8] = 0;
1627	>	if (r->pc() == ROM_BASE + 0x488160 && r->gpr(20) == 0xf8000000) {
1628	>	r->pc() += 4;
1629	>	r->gpr(8) = 0;
1630		return;
1631
1632		// MacOS 8.5 installation
1633	<	} else if (r->nip == ROM_BASE + 0x488140 && r->gpr[16] == 0xf8000000) {
1634	<	r->nip += 4;
1635	<	r->gpr[8] = 0;
1633	>	} else if (r->pc() == ROM_BASE + 0x488140 && r->gpr(16) == 0xf8000000) {
1634	>	r->pc() += 4;
1635	>	r->gpr(8) = 0;
1636		return;
1637
1638		// MacOS 8 serial drivers on startup
1639	<	} else if (r->nip == ROM_BASE + 0x48e080 && (r->gpr[8] == 0xf3012002 || r->gpr[8] == 0xf3012000)) {
1640	<	r->nip += 4;
1641	<	r->gpr[8] = 0;
1639	>	} else if (r->pc() == ROM_BASE + 0x48e080 && (r->gpr(8) == 0xf3012002 || r->gpr(8) == 0xf3012000)) {
1640	>	r->pc() += 4;
1641	>	r->gpr(8) = 0;
1642		return;
1643
1644		// MacOS 8.1 serial drivers on startup
1645	<	} else if (r->nip == ROM_BASE + 0x48c5e0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
1646	<	r->nip += 4;
1645	>	} else if (r->pc() == ROM_BASE + 0x48c5e0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1646	>	r->pc() += 4;
1647		return;
1648	<	} else if (r->nip == ROM_BASE + 0x4a10a0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
1649	<	r->nip += 4;
1648	>	} else if (r->pc() == ROM_BASE + 0x4a10a0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1649	>	r->pc() += 4;
1650	>	return;
1651	>
1652	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
1653	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(16) == 0xf3012002 || r->gpr(16) == 0xf3012000)) {
1654	>	r->pc() += 4;
1655	>	return;
1656	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1657	>	r->pc() += 4;
1658		return;
1659		}
1660
1661	+	// Get opcode and divide into fields
1662	+	uint32 opcode = *((uint32 *)r->pc());
1663	+	uint32 primop = opcode >> 26;
1664	+	uint32 exop = (opcode >> 1) & 0x3ff;
1665	+	uint32 ra = (opcode >> 16) & 0x1f;
1666	+	uint32 rb = (opcode >> 11) & 0x1f;
1667	+	uint32 rd = (opcode >> 21) & 0x1f;
1668	+	int32 imm = (int16)(opcode & 0xffff);
1669	+
1670		// Analyze opcode
1671		enum {
1672		TYPE_UNKNOWN,
#	Line 1466 | Line 1748 | static void sigsegv_handler(int sig, sig
1748		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_NORM; break;
1749		case 45:        // sthu
1750		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_U; break;
1751	<	}
1752	<
1753	<	// Calculate effective address
1754	<	uint32 addr = 0;
1755	<	switch (addr_mode) {
1756	<	case MODE_X:
1757	<	case MODE_UX:
1758	<	if (ra == 0)
1759	<	addr = r->gpr[rb];
1760	<	else
1761	<	addr = r->gpr[ra] + r->gpr[rb];
1762	<	break;
1481	<	case MODE_NORM:
1482	<	case MODE_U:
1483	<	if (ra == 0)
1484	<	addr = (int32)(int16)imm;
1485	<	else
1486	<	addr = r->gpr[ra] + (int32)(int16)imm;
1751	>	#if EMULATE_UNALIGNED_LOADSTORE_MULTIPLE
1752	>	case 46:        // lmw
1753	>	if ((addr % 4) != 0) {
1754	>	uint32 ea = addr;
1755	>	D(bug("WARNING: unaligned lmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1756	>	for (int i = rd; i <= 31; i++) {
1757	>	r->gpr(i) = ReadMacInt32(ea);
1758	>	ea += 4;
1759	>	}
1760	>	r->pc() += 4;
1761	>	goto rti;
1762	>	}
1763		break;
1764	<	default:
1764	>	case 47:        // stmw
1765	>	if ((addr % 4) != 0) {
1766	>	uint32 ea = addr;
1767	>	D(bug("WARNING: unaligned stmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1768	>	for (int i = rd; i <= 31; i++) {
1769	>	WriteMacInt32(ea, r->gpr(i));
1770	>	ea += 4;
1771	>	}
1772	>	r->pc() += 4;
1773	>	goto rti;
1774	>	}
1775		break;
1776	+	#endif
1777		}
1778	<
1779	<	// Ignore ROM writes
1780	<	if (transfer_type == TYPE_STORE && addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) {
1781	<	//                      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));
1778	>
1779	>	// Ignore ROM writes (including to the zero page, which is read-only)
1780	>	if (transfer_type == TYPE_STORE &&
1781	>	((addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) ||
1782	>	(addr >= SheepMem::ZeroPage() && addr < SheepMem::ZeroPage() + SheepMem::PageSize()))) {
1783	>	//                      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()));
1784		if (addr_mode == MODE_U || addr_mode == MODE_UX)
1785	<	r->gpr[ra] = addr;
1786	<	r->nip += 4;
1785	>	r->gpr(ra) = addr;
1786	>	r->pc() += 4;
1787		goto rti;
1788		}
1789
1790		// Ignore illegal memory accesses?
1791		if (PrefsFindBool("ignoresegv")) {
1792		if (addr_mode == MODE_U || addr_mode == MODE_UX)
1793	<	r->gpr[ra] = addr;
1793	>	r->gpr(ra) = addr;
1794		if (transfer_type == TYPE_LOAD)
1795	<	r->gpr[rd] = 0;
1796	<	r->nip += 4;
1795	>	r->gpr(rd) = 0;
1796	>	r->pc() += 4;
1797		goto rti;
1798		}
1799
#	Line 1512 | Line 1801 | static void sigsegv_handler(int sig, sig
1801		if (!PrefsFindBool("nogui")) {
1802		char str[256];
1803		if (transfer_type == TYPE_LOAD || transfer_type == TYPE_STORE)
1804	<	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]);
1804	>	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));
1805		else
1806	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
1806	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
1807		ErrorAlert(str);
1808		QuitEmulator();
1809		return;
#	Line 1522 | Line 1811 | static void sigsegv_handler(int sig, sig
1811		}
1812
1813		// For all other errors, jump into debugger (sort of...)
1814	+	crash_reason = (sig == SIGBUS) ? "SIGBUS" : "SIGSEGV";
1815		if (!ready_for_signals) {
1816	<	printf("SIGSEGV\n");
1817	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
1816	>	printf("%s\n");
1817	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
1818		printf(
1819		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1820		"  xer %08lx     cr %08lx  \n"
#	Line 1536 | Line 1826 | static void sigsegv_handler(int sig, sig
1826		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
1827		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
1828		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
1829	<	r->nip, r->link, r->ctr, r->msr,
1830	<	r->xer, r->ccr,
1831	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
1832	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
1833	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
1834	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
1835	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
1836	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
1837	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
1838	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
1829	>	crash_reason,
1830	>	r->pc(), r->lr(), r->ctr(), r->msr(),
1831	>	r->xer(), r->cr(),
1832	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
1833	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
1834	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
1835	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
1836	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
1837	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
1838	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
1839	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
1840		exit(1);
1841		QuitEmulator();
1842		return;
1843		} else {
1844		// We crashed. Save registers, tell tick thread and loop forever
1845	<	sigsegv_regs = *(sigregs *)r;
1845	>	build_sigregs(&sigsegv_regs, r);
1846		emul_thread_fatal = true;
1847		for (;;) ;
1848		}
#	Line 1563 | Line 1854 | rti:;
1854		*  SIGILL handler
1855		*/
1856
1857	<	static void sigill_handler(int sig, sigcontext_struct *sc)
1857	>	static void sigill_handler(int sig, siginfo_t *sip, void *scp)
1858		{
1859	<	pt_regs *r = sc->regs;
1859	>	machine_regs *r = MACHINE_REGISTERS(scp);
1860		char str[256];
1861
1862	+	#ifdef SYSTEM_CLOBBERS_R2
1863	+	// Restore pointer to Thread Local Storage
1864	+	set_r2(TOC);
1865	+	#endif
1866	+	#ifdef SYSTEM_CLOBBERS_R13
1867	+	// Restore pointer to .sdata section
1868	+	set_r13(R13);
1869	+	#endif
1870	+
1871		// Fault in Mac ROM or RAM?
1872	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
1872	>	bool mac_fault = (r->pc() >= ROM_BASE) && (r->pc() < (ROM_BASE + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
1873		if (mac_fault) {
1874
1875		// Get opcode and divide into fields
1876	<	uint32 opcode = *((uint32 *)r->nip);
1876	>	uint32 opcode = *((uint32 *)r->pc());
1877		uint32 primop = opcode >> 26;
1878		uint32 exop = (opcode >> 1) & 0x3ff;
1879		uint32 ra = (opcode >> 16) & 0x1f;
#	Line 1584 | Line 1884 | static void sigill_handler(int sig, sigc
1884		switch (primop) {
1885		case 9:         // POWER instructions
1886		case 22:
1887	<	power_inst:             sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->nip, r->gpr[1], opcode);
1887	>	power_inst:             sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->pc(), r->gpr(1), opcode);
1888		ErrorAlert(str);
1889		QuitEmulator();
1890		return;
#	Line 1592 | Line 1892 | power_inst:            sprintf(str, GetString(STR_
1892		case 31:
1893		switch (exop) {
1894		case 83:        // mfmsr
1895	<	r->gpr[rd] = 0xf072;
1896	<	r->nip += 4;
1895	>	r->gpr(rd) = 0xf072;
1896	>	r->pc() += 4;
1897		goto rti;
1898
1899		case 210:       // mtsr
1900		case 242:       // mtsrin
1901		case 306:       // tlbie
1902	<	r->nip += 4;
1902	>	r->pc() += 4;
1903		goto rti;
1904
1905		case 339: {     // mfspr
#	Line 1615 | Line 1915 | power_inst:            sprintf(str, GetString(STR_
1915		case 957:       // PMC3
1916		case 958:       // PMC4
1917		case 959:       // SDA
1918	<	r->nip += 4;
1918	>	r->pc() += 4;
1919		goto rti;
1920		case 25:        // SDR1
1921	<	r->gpr[rd] = 0xdead001f;
1922	<	r->nip += 4;
1921	>	r->gpr(rd) = 0xdead001f;
1922	>	r->pc() += 4;
1923		goto rti;
1924		case 287:       // PVR
1925	<	r->gpr[rd] = PVR;
1926	<	r->nip += 4;
1925	>	r->gpr(rd) = PVR;
1926	>	r->pc() += 4;
1927		goto rti;
1928		}
1929		break;
#	Line 1659 | Line 1959 | power_inst:            sprintf(str, GetString(STR_
1959		case 957:       // PMC3
1960		case 958:       // PMC4
1961		case 959:       // SDA
1962	<	r->nip += 4;
1962	>	r->pc() += 4;
1963		goto rti;
1964		}
1965		break;
#	Line 1678 | Line 1978 | power_inst:            sprintf(str, GetString(STR_
1978
1979		// In GUI mode, show error alert
1980		if (!PrefsFindBool("nogui")) {
1981	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
1981	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
1982		ErrorAlert(str);
1983		QuitEmulator();
1984		return;
#	Line 1686 | Line 1986 | power_inst:            sprintf(str, GetString(STR_
1986		}
1987
1988		// For all other errors, jump into debugger (sort of...)
1989	+	crash_reason = "SIGILL";
1990		if (!ready_for_signals) {
1991	<	printf("SIGILL\n");
1992	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
1991	>	printf("%s\n");
1992	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
1993		printf(
1994		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1995		"  xer %08lx     cr %08lx  \n"
#	Line 1700 | Line 2001 | power_inst:            sprintf(str, GetString(STR_
2001		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
2002		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
2003		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
2004	<	r->nip, r->link, r->ctr, r->msr,
2005	<	r->xer, r->ccr,
2006	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
2007	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
2008	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
2009	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
2010	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
2011	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
2012	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
2013	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
2004	>	crash_reason,
2005	>	r->pc(), r->lr(), r->ctr(), r->msr(),
2006	>	r->xer(), r->cr(),
2007	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
2008	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
2009	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
2010	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
2011	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
2012	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
2013	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
2014	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
2015		exit(1);
2016		QuitEmulator();
2017		return;
2018		} else {
2019		// We crashed. Save registers, tell tick thread and loop forever
2020	<	sigsegv_regs = *(sigregs *)r;
2020	>	build_sigregs(&sigsegv_regs, r);
2021		emul_thread_fatal = true;
2022		for (;;) ;
2023		}
#	Line 1725 | Line 2027 | rti:;
2027
2028
2029		/*
2030	+	*  Helpers to share 32-bit addressable data with MacOS
2031	+	*/
2032	+
2033	+	bool SheepMem::Init(void)
2034	+	{
2035	+	// Size of a native page
2036	+	page_size = getpagesize();
2037	+
2038	+	// Allocate SheepShaver globals
2039	+	proc = base;
2040	+	if (vm_mac_acquire(base, size) < 0)
2041	+	return false;
2042	+
2043	+	// Allocate page with all bits set to 0, right in the middle
2044	+	// This is also used to catch undesired overlaps between proc and data areas
2045	+	zero_page = proc + (size / 2);
2046	+	Mac_memset(zero_page, 0, page_size);
2047	+	if (vm_protect(Mac2HostAddr(zero_page), page_size, VM_PAGE_READ) < 0)
2048	+	return false;
2049	+
2050	+	#if EMULATED_PPC
2051	+	// Allocate alternate stack for PowerPC interrupt routine
2052	+	sig_stack = base + size;
2053	+	if (vm_mac_acquire(sig_stack, SIG_STACK_SIZE) < 0)
2054	+	return false;
2055	+	#endif
2056	+
2057	+	data = base + size;
2058	+	return true;
2059	+	}
2060	+
2061	+	void SheepMem::Exit(void)
2062	+	{
2063	+	if (data) {
2064	+	// Delete SheepShaver globals
2065	+	vm_mac_release(base, size);
2066	+
2067	+	#if EMULATED_PPC
2068	+	// Delete alternate stack for PowerPC interrupt routine
2069	+	vm_mac_release(sig_stack, SIG_STACK_SIZE);
2070	+	#endif
2071	+	}
2072	+	}
2073	+
2074	+
2075	+	/*
2076		*  Display alert
2077		*/
2078
#	Line 1773 | Line 2121 | void display_alert(int title_id, int pre
2121
2122		void ErrorAlert(const char *text)
2123		{
2124	<	#ifdef ENABLE_GTK
2124	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2125		if (PrefsFindBool("nogui") || x_display == NULL) {
2126		printf(GetString(STR_SHELL_ERROR_PREFIX), text);
2127		return;
#	Line 1792 | Line 2140 | void ErrorAlert(const char *text)
2140
2141		void WarningAlert(const char *text)
2142		{
2143	<	#ifdef ENABLE_GTK
2143	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2144		if (PrefsFindBool("nogui") || x_display == NULL) {
2145		printf(GetString(STR_SHELL_WARNING_PREFIX), text);
2146		return;

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines