[ViewVC] Diff of: cebix/SheepShaver/src/rom

Comparing SheepShaver/src/rom_patches.cpp (file contents):
Revision 1.1.1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.18 by gbeauche, 2003-12-04T17:26:35Z

#	Line 40 \| Line 40
40		#include "audio_defs.h"
41		#include "serial.h"
42		#include "macos_util.h"
43	+	#include "thunks.h"
44
45		#define DEBUG 0
46		#include "debug.h"
#	Line 58 \| Line 59
59
60
61		// Other ROM addresses
62	<	const uint32 CHECK_LOAD_PATCH_SPACE = 0x2f7f00;
63	<	const uint32 PUT_SCRAP_PATCH_SPACE = 0x2f7f80;
64	<	const uint32 GET_SCRAP_PATCH_SPACE = 0x2f7fc0;
65	<	const uint32 ADDR_MAP_PATCH_SPACE = 0x2f8000;
62	>	const uint32 CHECK_LOAD_PATCH_SPACE = 0x2fcf00;
63	>	const uint32 PUT_SCRAP_PATCH_SPACE = 0x2fcf80;
64	>	const uint32 GET_SCRAP_PATCH_SPACE = 0x2fcfc0;
65	>	const uint32 ADDR_MAP_PATCH_SPACE = 0x2fd000;
66
67		// Global variables
68		int ROMType; // ROM type
#	Line 74 \| Line 75 \| static bool patch_nanokernel(void);
75		static bool patch_68k(void);
76
77
78	+	// Decode LZSS data
79	+	static void decode_lzss(const uint8 src, uint8 dest, int size)
80	+	{
81	+	char dict[0x1000];
82	+	int run_mask = 0, dict_idx = 0xfee;
83	+	for (;;) {
84	+	if (run_mask < 0x100) {
85	+	// Start new run
86	+	if (--size < 0)
87	+	break;
88	+	run_mask = *src++ \| 0xff00;
89	+	}
90	+	bool bit = run_mask & 1;
91	+	run_mask >>= 1;
92	+	if (bit) {
93	+	// Verbatim copy
94	+	if (--size < 0)
95	+	break;
96	+	int c = *src++;
97	+	dict[dict_idx++] = c;
98	+	*dest++ = c;
99	+	dict_idx &= 0xfff;
100	+	} else {
101	+	// Copy from dictionary
102	+	if (--size < 0)
103	+	break;
104	+	int idx = *src++;
105	+	if (--size < 0)
106	+	break;
107	+	int cnt = *src++;
108	+	idx \|= (cnt << 4) & 0xf00;
109	+	cnt = (cnt & 0x0f) + 3;
110	+	while (cnt--) {
111	+	char c = dict[idx++];
112	+	dict[dict_idx++] = c;
113	+	*dest++ = c;
114	+	idx &= 0xfff;
115	+	dict_idx &= 0xfff;
116	+	}
117	+	}
118	+	}
119	+	}
120	+
121	+	// Decode parcels of ROM image (MacOS 9.X and even earlier)
122	+	void decode_parcels(const uint8 src, uint8 dest, int size)
123	+	{
124	+	uint32 parcel_offset = 0x14;
125	+	D(bug("Offset Type Name\n"));
126	+	while (parcel_offset != 0) {
127	+	const uint32 parcel_data = (uint32 )(src + parcel_offset);
128	+	uint32 next_offset = ntohl(parcel_data[0]);
129	+	uint32 parcel_type = ntohl(parcel_data[1]);
130	+	D(bug("%08x %c%c%c%c %s\n", parcel_offset,
131	+	(parcel_type >> 24) & 0xff, (parcel_type >> 16) & 0xff,
132	+	(parcel_type >> 8) & 0xff, parcel_type & 0xff, &parcel_data[6]));
133	+	if (parcel_type == FOURCC('r','o','m',' ')) {
134	+	uint32 lzss_offset = ntohl(parcel_data[2]);
135	+	uint32 lzss_size = ((uintptr)src + next_offset) - ((uintptr)parcel_data + lzss_offset);
136	+	decode_lzss((uint8 *)parcel_data + lzss_offset, dest, lzss_size);
137	+	}
138	+	parcel_offset = next_offset;
139	+	}
140	+	}
141	+
142	+
143	+	/*
144	+	* Decode ROM image, 4 MB plain images or NewWorld images
145	+	*/
146	+
147	+	bool DecodeROM(uint8 *data, uint32 size)
148	+	{
149	+	if (size == ROM_SIZE) {
150	+	// Plain ROM image
151	+	memcpy((void *)ROM_BASE, data, ROM_SIZE);
152	+	return true;
153	+	}
154	+	else if (strncmp((char *)data, "<CHRP-BOOT>", 11) == 0) {
155	+	// CHRP compressed ROM image
156	+	uint32 image_offset, image_size;
157	+	bool decode_info_ok = false;
158	+
159	+	char s = strstr((char )data, "constant lzss-offset");
160	+	if (s != NULL) {
161	+	// Probably a plain LZSS compressed ROM image
162	+	if (sscanf(s - 7, "%06x", &image_offset) == 1) {
163	+	s = strstr((char *)data, "constant lzss-size");
164	+	if (s != NULL && (sscanf(s - 7, "%06x", &image_size) == 1))
165	+	decode_info_ok = true;
166	+	}
167	+	}
168	+	else {
169	+	// Probably a MacOS 9.2.x ROM image
170	+	s = strstr((char *)data, "constant parcels-offset");
171	+	if (s != NULL) {
172	+	if (sscanf(s - 7, "%06x", &image_offset) == 1) {
173	+	s = strstr((char *)data, "constant parcels-size");
174	+	if (s != NULL && (sscanf(s - 7, "%06x", &image_size) == 1))
175	+	decode_info_ok = true;
176	+	}
177	+	}
178	+	}
179	+
180	+	// No valid information to decode the ROM found?
181	+	if (!decode_info_ok)
182	+	return false;
183	+
184	+	// Check signature, this could be a parcels-based ROM image
185	+	uint32 rom_signature = ntohl((uint32 )(data + image_offset));
186	+	if (rom_signature == FOURCC('p','r','c','l')) {
187	+	D(bug("Offset of parcels data: %08x\n", image_offset));
188	+	D(bug("Size of parcels data: %08x\n", image_size));
189	+	decode_parcels(data + image_offset, (uint8 *)ROM_BASE, image_size);
190	+	}
191	+	else {
192	+	D(bug("Offset of compressed data: %08x\n", image_offset));
193	+	D(bug("Size of compressed data: %08x\n", image_size));
194	+	decode_lzss(data + image_offset, (uint8 *)ROM_BASE, image_size);
195	+	}
196	+	return true;
197	+	}
198	+	return false;
199	+	}
200	+
201	+
202		/*
203		* Search ROM for byte string, return ROM offset (or 0)
204		*/
#	Line 323 \| Line 448 \| static const uint8 cdrom_driver[] = { //
448		0x4e, 0x75 // rts
449		};
450
451	<	#ifdef __linux__
327	<	static uint32 serial_nothing_tvect[2] = {(uint32)SerialNothing, 0};
328	<	static uint32 serial_open_tvect[2] = {(uint32)SerialOpen, 0};
329	<	static uint32 serial_prime_in_tvect[2] = {(uint32)SerialPrimeIn, 0};
330	<	static uint32 serial_prime_out_tvect[2] = {(uint32)SerialPrimeOut, 0};
331	<	static uint32 serial_control_tvect[2] = {(uint32)SerialControl, 0};
332	<	static uint32 serial_status_tvect[2] = {(uint32)SerialStatus, 0};
333	<	static uint32 serial_close_tvect[2] = {(uint32)SerialClose, 0};
334	<	#endif
451	>	static uint32 long_ptr;
452
453	<	static const uint32 ain_driver[] = { // .AIn driver header
454	<	0x4d000000, 0x00000000,
455	<	0x00200040, 0x00600080,
456	<	0x00a0042e, 0x41496e00,
457	<	0x00000000, 0x00000000,
458	<	0xaafe0700, 0x00000000,
459	<	0x00000000, 0x00179822,
460	<	#ifdef __linux__
461	<	0x00010004, (uint32)serial_nothing_tvect,
462	<	#else
463	<	0x00010004, (uint32)SerialNothing,
464	<	#endif
465	<	0x00000000, 0x00000000,
466	<	0xaafe0700, 0x00000000,
467	<	0x00000000, 0x00179822,
468	<	#ifdef __linux__
469	<	0x00010004, (uint32)serial_prime_in_tvect,
470	<	#else
471	<	0x00010004, (uint32)SerialPrimeIn,
472	<	#endif
473	<	0x00000000, 0x00000000,
474	<	0xaafe0700, 0x00000000,
475	<	0x00000000, 0x00179822,
476	<	#ifdef __linux__
477	<	0x00010004, (uint32)serial_control_tvect,
478	<	#else
479	<	0x00010004, (uint32)SerialControl,
480	<	#endif
481	<	0x00000000, 0x00000000,
482	<	0xaafe0700, 0x00000000,
483	<	0x00000000, 0x00179822,
484	<	#ifdef __linux__
485	<	0x00010004, (uint32)serial_status_tvect,
486	<	#else
487	<	0x00010004, (uint32)SerialStatus,
488	<	#endif
489	<	0x00000000, 0x00000000,
490	<	0xaafe0700, 0x00000000,
491	<	0x00000000, 0x00179822,
492	<	#ifdef __linux__
376	<	0x00010004, (uint32)serial_nothing_tvect,
377	<	#else
378	<	0x00010004, (uint32)SerialNothing,
379	<	#endif
380	<	0x00000000, 0x00000000,
453	>	static void SetLongBase(uint32 addr)
454	>	{
455	>	long_ptr = addr;
456	>	}
457	>
458	>	static void Long(uint32 value)
459	>	{
460	>	WriteMacInt32(long_ptr, value);
461	>	long_ptr += 4;
462	>	}
463	>
464	>	static void gen_ain_driver(uintptr addr)
465	>	{
466	>	SetLongBase(addr);
467	>
468	>	// .AIn driver header
469	>	Long(0x4d000000); Long(0x00000000);
470	>	Long(0x00200040); Long(0x00600080);
471	>	Long(0x00a0042e); Long(0x41496e00);
472	>	Long(0x00000000); Long(0x00000000);
473	>	Long(0xaafe0700); Long(0x00000000);
474	>	Long(0x00000000); Long(0x00179822);
475	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_NOTHING));
476	>	Long(0x00000000); Long(0x00000000);
477	>	Long(0xaafe0700); Long(0x00000000);
478	>	Long(0x00000000); Long(0x00179822);
479	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_PRIME_IN));
480	>	Long(0x00000000); Long(0x00000000);
481	>	Long(0xaafe0700); Long(0x00000000);
482	>	Long(0x00000000); Long(0x00179822);
483	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_CONTROL));
484	>	Long(0x00000000); Long(0x00000000);
485	>	Long(0xaafe0700); Long(0x00000000);
486	>	Long(0x00000000); Long(0x00179822);
487	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_STATUS));
488	>	Long(0x00000000); Long(0x00000000);
489	>	Long(0xaafe0700); Long(0x00000000);
490	>	Long(0x00000000); Long(0x00179822);
491	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_NOTHING));
492	>	Long(0x00000000); Long(0x00000000);
493		};
494
495	<	static const uint32 aout_driver[] = { // .AOut driver header
496	<	0x4d000000, 0x00000000,
497	<	0x00200040, 0x00600080,
498	<	0x00a0052e, 0x414f7574,
499	<	0x00000000, 0x00000000,
500	<	0xaafe0700, 0x00000000,
501	<	0x00000000, 0x00179822,
502	<	#ifdef __linux__
503	<	0x00010004, (uint32)serial_open_tvect,
504	<	#else
505	<	0x00010004, (uint32)SerialOpen,
506	<	#endif
507	<	0x00000000, 0x00000000,
508	<	0xaafe0700, 0x00000000,
509	<	0x00000000, 0x00179822,
510	<	#ifdef __linux__
511	<	0x00010004, (uint32)serial_prime_out_tvect,
512	<	#else
513	<	0x00010004, (uint32)SerialPrimeOut,
514	<	#endif
515	<	0x00000000, 0x00000000,
516	<	0xaafe0700, 0x00000000,
517	<	0x00000000, 0x00179822,
518	<	#ifdef __linux__
519	<	0x00010004, (uint32)serial_control_tvect,
520	<	#else
521	<	0x00010004, (uint32)SerialControl,
522	<	#endif
523	<	0x00000000, 0x00000000,
412	<	0xaafe0700, 0x00000000,
413	<	0x00000000, 0x00179822,
414	<	#ifdef __linux__
415	<	0x00010004, (uint32)serial_status_tvect,
416	<	#else
417	<	0x00010004, (uint32)SerialStatus,
418	<	#endif
419	<	0x00000000, 0x00000000,
420	<	0xaafe0700, 0x00000000,
421	<	0x00000000, 0x00179822,
422	<	#ifdef __linux__
423	<	0x00010004, (uint32)serial_close_tvect,
424	<	#else
425	<	0x00010004, (uint32)SerialClose,
426	<	#endif
427	<	0x00000000, 0x00000000,
495	>	static void gen_aout_driver(uintptr addr)
496	>	{
497	>	SetLongBase(addr);
498	>
499	>	// .AOut driver header
500	>	Long(0x4d000000); Long(0x00000000);
501	>	Long(0x00200040); Long(0x00600080);
502	>	Long(0x00a0052e); Long(0x414f7574);
503	>	Long(0x00000000); Long(0x00000000);
504	>	Long(0xaafe0700); Long(0x00000000);
505	>	Long(0x00000000); Long(0x00179822);
506	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_OPEN));
507	>	Long(0x00000000); Long(0x00000000);
508	>	Long(0xaafe0700); Long(0x00000000);
509	>	Long(0x00000000); Long(0x00179822);
510	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_PRIME_OUT));
511	>	Long(0x00000000); Long(0x00000000);
512	>	Long(0xaafe0700); Long(0x00000000);
513	>	Long(0x00000000); Long(0x00179822);
514	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_CONTROL));
515	>	Long(0x00000000); Long(0x00000000);
516	>	Long(0xaafe0700); Long(0x00000000);
517	>	Long(0x00000000); Long(0x00179822);
518	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_STATUS));
519	>	Long(0x00000000); Long(0x00000000);
520	>	Long(0xaafe0700); Long(0x00000000);
521	>	Long(0x00000000); Long(0x00179822);
522	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_CLOSE));
523	>	Long(0x00000000); Long(0x00000000);
524		};
525
526	<	static const uint32 bin_driver[] = { // .BIn driver header
527	<	0x4d000000, 0x00000000,
528	<	0x00200040, 0x00600080,
529	<	0x00a0042e, 0x42496e00,
530	<	0x00000000, 0x00000000,
531	<	0xaafe0700, 0x00000000,
532	<	0x00000000, 0x00179822,
533	<	#ifdef __linux__
534	<	0x00010004, (uint32)serial_nothing_tvect,
535	<	#else
536	<	0x00010004, (uint32)SerialNothing,
537	<	#endif
538	<	0x00000000, 0x00000000,
539	<	0xaafe0700, 0x00000000,
540	<	0x00000000, 0x00179822,
541	<	#ifdef __linux__
542	<	0x00010004, (uint32)serial_prime_in_tvect,
543	<	#else
544	<	0x00010004, (uint32)SerialPrimeIn,
545	<	#endif
546	<	0x00000000, 0x00000000,
547	<	0xaafe0700, 0x00000000,
548	<	0x00000000, 0x00179822,
549	<	#ifdef __linux__
550	<	0x00010004, (uint32)serial_control_tvect,
551	<	#else
552	<	0x00010004, (uint32)SerialControl,
553	<	#endif
554	<	0x00000000, 0x00000000,
459	<	0xaafe0700, 0x00000000,
460	<	0x00000000, 0x00179822,
461	<	#ifdef __linux__
462	<	0x00010004, (uint32)serial_status_tvect,
463	<	#else
464	<	0x00010004, (uint32)SerialStatus,
465	<	#endif
466	<	0x00000000, 0x00000000,
467	<	0xaafe0700, 0x00000000,
468	<	0x00000000, 0x00179822,
469	<	#ifdef __linux__
470	<	0x00010004, (uint32)serial_nothing_tvect,
471	<	#else
472	<	0x00010004, (uint32)SerialNothing,
473	<	#endif
474	<	0x00000000, 0x00000000,
526	>	static void gen_bin_driver(uintptr addr)
527	>	{
528	>	SetLongBase(addr);
529	>
530	>	// .BIn driver header
531	>	Long(0x4d000000); Long(0x00000000);
532	>	Long(0x00200040); Long(0x00600080);
533	>	Long(0x00a0042e); Long(0x42496e00);
534	>	Long(0x00000000); Long(0x00000000);
535	>	Long(0xaafe0700); Long(0x00000000);
536	>	Long(0x00000000); Long(0x00179822);
537	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_NOTHING));
538	>	Long(0x00000000); Long(0x00000000);
539	>	Long(0xaafe0700); Long(0x00000000);
540	>	Long(0x00000000); Long(0x00179822);
541	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_PRIME_IN));
542	>	Long(0x00000000); Long(0x00000000);
543	>	Long(0xaafe0700); Long(0x00000000);
544	>	Long(0x00000000); Long(0x00179822);
545	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_CONTROL));
546	>	Long(0x00000000); Long(0x00000000);
547	>	Long(0xaafe0700); Long(0x00000000);
548	>	Long(0x00000000); Long(0x00179822);
549	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_STATUS));
550	>	Long(0x00000000); Long(0x00000000);
551	>	Long(0xaafe0700); Long(0x00000000);
552	>	Long(0x00000000); Long(0x00179822);
553	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_NOTHING));
554	>	Long(0x00000000); Long(0x00000000);
555		};
556
557	<	static const uint32 bout_driver[] = { // .BOut driver header
558	<	0x4d000000, 0x00000000,
559	<	0x00200040, 0x00600080,
560	<	0x00a0052e, 0x424f7574,
561	<	0x00000000, 0x00000000,
562	<	0xaafe0700, 0x00000000,
563	<	0x00000000, 0x00179822,
564	<	#ifdef __linux__
565	<	0x00010004, (uint32)serial_open_tvect,
566	<	#else
567	<	0x00010004, (uint32)SerialOpen,
568	<	#endif
569	<	0x00000000, 0x00000000,
570	<	0xaafe0700, 0x00000000,
571	<	0x00000000, 0x00179822,
572	<	#ifdef __linux__
573	<	0x00010004, (uint32)serial_prime_out_tvect,
574	<	#else
575	<	0x00010004, (uint32)SerialPrimeOut,
576	<	#endif
577	<	0x00000000, 0x00000000,
578	<	0xaafe0700, 0x00000000,
579	<	0x00000000, 0x00179822,
580	<	#ifdef __linux__
581	<	0x00010004, (uint32)serial_control_tvect,
582	<	#else
583	<	0x00010004, (uint32)SerialControl,
584	<	#endif
585	<	0x00000000, 0x00000000,
506	<	0xaafe0700, 0x00000000,
507	<	0x00000000, 0x00179822,
508	<	#ifdef __linux__
509	<	0x00010004, (uint32)serial_status_tvect,
510	<	#else
511	<	0x00010004, (uint32)SerialStatus,
512	<	#endif
513	<	0x00000000, 0x00000000,
514	<	0xaafe0700, 0x00000000,
515	<	0x00000000, 0x00179822,
516	<	#ifdef __linux__
517	<	0x00010004, (uint32)serial_close_tvect,
518	<	#else
519	<	0x00010004, (uint32)SerialClose,
520	<	#endif
521	<	0x00000000, 0x00000000,
557	>	static void gen_bout_driver(uintptr addr)
558	>	{
559	>	SetLongBase(addr);
560	>
561	>	// .BOut driver header
562	>	Long(0x4d000000); Long(0x00000000);
563	>	Long(0x00200040); Long(0x00600080);
564	>	Long(0x00a0052e); Long(0x424f7574);
565	>	Long(0x00000000); Long(0x00000000);
566	>	Long(0xaafe0700); Long(0x00000000);
567	>	Long(0x00000000); Long(0x00179822);
568	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_OPEN));
569	>	Long(0x00000000); Long(0x00000000);
570	>	Long(0xaafe0700); Long(0x00000000);
571	>	Long(0x00000000); Long(0x00179822);
572	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_PRIME_OUT));
573	>	Long(0x00000000); Long(0x00000000);
574	>	Long(0xaafe0700); Long(0x00000000);
575	>	Long(0x00000000); Long(0x00179822);
576	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_CONTROL));
577	>	Long(0x00000000); Long(0x00000000);
578	>	Long(0xaafe0700); Long(0x00000000);
579	>	Long(0x00000000); Long(0x00179822);
580	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_STATUS));
581	>	Long(0x00000000); Long(0x00000000);
582	>	Long(0xaafe0700); Long(0x00000000);
583	>	Long(0x00000000); Long(0x00179822);
584	>	Long(0x00010004); Long(NativeTVECT(NATIVE_SERIAL_CLOSE));
585	>	Long(0x00000000); Long(0x00000000);
586		};
587
588		static const uint8 adbop_patch[] = { // Call ADBOp() completion procedure
#	Line 545 \| Line 609 \| static const uint8 adbop_patch[] = { //
609
610
611		/*
612	+	* Copy PowerPC code to ROM image and reverse bytes if necessary
613	+	*/
614	+
615	+	static inline void memcpy_powerpc_code(void dst, const void src, size_t len)
616	+	{
617	+	#ifdef WORDS_BIGENDIAN
618	+	(void)memcpy(dst, src, len);
619	+	#else
620	+	uint32 d = (uint32 )dst;
621	+	uint32 s = (uint32 )src;
622	+	for (int i = 0; i < len/4; i++)
623	+	d[i] = htonl(s[i]);
624	+	#endif
625	+	}
626	+
627	+
628	+	/*
629		* Install ROM patches (RAMBase and KernelDataAddr must be set)
630		*/
631
#	Line 567 \| Line 648 \| bool PatchROM(void)
648		ROMType = ROMTYPE_ZANZIBAR;
649		else if (!memcmp((void *)(ROM_BASE + 0x30d064), "Boot Gazelle", 12))
650		ROMType = ROMTYPE_GAZELLE;
651	+	else if (!memcmp((void *)(ROM_BASE + 0x30d064), "Boot Gossamer", 13))
652	+	ROMType = ROMTYPE_GOSSAMER;
653		else if (!memcmp((void *)(ROM_BASE + 0x30d064), "NewWorld", 8))
654		ROMType = ROMTYPE_NEWWORLD;
655		else
656		return false;
657
658	+	// Check that other ROM addresses point to really free regions
659	+	if (ntohl((uint32 )(ROM_BASE + CHECK_LOAD_PATCH_SPACE)) != 0x6b636b63)
660	+	return false;
661	+	if (ntohl((uint32 )(ROM_BASE + PUT_SCRAP_PATCH_SPACE)) != 0x6b636b63)
662	+	return false;
663	+	if (ntohl((uint32 )(ROM_BASE + GET_SCRAP_PATCH_SPACE)) != 0x6b636b63)
664	+	return false;
665	+	if (ntohl((uint32 )(ROM_BASE + ADDR_MAP_PATCH_SPACE)) != 0x6b636b63)
666	+	return false;
667	+
668		// Apply patches
669		if (!patch_nanokernel_boot()) return false;
670		if (!patch_68k_emul()) return false;
#	Line 616 \| Line 709 \| static bool patch_nanokernel_boot(void)
709		lp[0xfd8 >> 2] = htonl(ROM_BASE + 0x2a); // 68k reset vector
710
711		// Skip SR/BAT/SDR init
712	<	if (ROMType == ROMTYPE_GAZELLE \|\| ROMType == ROMTYPE_NEWWORLD) {
712	>	if (ROMType == ROMTYPE_GAZELLE \|\| ROMType == ROMTYPE_GOSSAMER \|\| ROMType == ROMTYPE_NEWWORLD) {
713		lp = (uint32 *)(ROM_BASE + 0x310000);
714		*lp++ = htonl(POWERPC_NOP);
715		*lp = htonl(0x38000000);
716		}
717	<	static const uint32 sr_init_loc[] = {0x3101b0, 0x3101b0, 0x3101b0, 0x3101ec, 0x310200};
717	>	static const uint32 sr_init_loc[] = {0x3101b0, 0x3101b0, 0x3101b0, 0x3101ec, 0x3101fc, 0x310200};
718		lp = (uint32 *)(ROM_BASE + 0x310008);
719		*lp = htonl(0x48000000 \| (sr_init_loc[ROMType] - 8) & 0xffff); // b ROM_BASE+0x3101b0
720		lp = (uint32 *)(ROM_BASE + sr_init_loc[ROMType]);
#	Line 631 \| Line 724 \| static bool patch_nanokernel_boot(void)
724		*lp = htonl(0x3de00010); // lis r15,0x0010 (size of kernel memory)
725
726		// Don't read PVR
727	<	static const uint32 pvr_loc[] = {0x3103b0, 0x3103b4, 0x3103b4, 0x310400, 0x310438};
727	>	static const uint32 pvr_loc[] = {0x3103b0, 0x3103b4, 0x3103b4, 0x310400, 0x310430, 0x310438};
728		lp = (uint32 *)(ROM_BASE + pvr_loc[ROMType]);
729		*lp = htonl(0x81800000 + XLM_PVR); // lwz r12,(theoretical PVR)
730
#	Line 779 \| Line 872 \| static bool patch_nanokernel_boot(void)
872		*lp = htonl(POWERPC_NOP);
873
874		// Don't read PVR
875	<	static const uint32 pvr_ofs[] = {0x138, 0x138, 0x138, 0x140, 0x148};
875	>	static const uint32 pvr_ofs[] = {0x138, 0x138, 0x138, 0x140, 0x148, 0x148};
876		lp = (uint32 *)(ROM_BASE + loc + pvr_ofs[ROMType]);
877		*lp = htonl(0x82e00000 + XLM_PVR); // lwz r23,(theoretical PVR)
878		lp = (uint32 *)(ROM_BASE + loc + 0x170);
879	<	if (ntohl(*lp) == 0x7eff42a6) // NewWorld ROM
879	>	if (ntohl(*lp) == 0x7eff42a6) // NewWorld or Gossamer ROM
880		*lp = htonl(0x82e00000 + XLM_PVR); // lwz r23,(theoretical PVR)
881		lp = (uint32 *)(ROM_BASE + 0x313134);
882		if (ntohl(*lp) == 0x7e5f42a6)
#	Line 791 \| Line 884 \| static bool patch_nanokernel_boot(void)
884		lp = (uint32 *)(ROM_BASE + 0x3131f4);
885		if (ntohl(*lp) == 0x7e5f42a6) // NewWorld ROM
886		*lp = htonl(0x82400000 + XLM_PVR); // lwz r18,(theoretical PVR)
887	+	lp = (uint32 *)(ROM_BASE + 0x314600);
888	+	if (ntohl(*lp) == 0x7d3f42a6)
889	+	*lp = htonl(0x81200000 + XLM_PVR); // lzw r9,(theoritical PVR)
890
891		// Don't read SDR1
892	<	static const uint32 sdr1_ofs[] = {0x174, 0x174, 0x174, 0x17c, 0x19c};
892	>	static const uint32 sdr1_ofs[] = {0x174, 0x174, 0x174, 0x17c, 0x19c, 0x19c};
893		lp = (uint32 *)(ROM_BASE + loc + sdr1_ofs[ROMType]);
894		*lp++ = htonl(0x3d00dead); // lis r8,0xdead (pointer to page table)
895		*lp++ = htonl(0x3ec0001f); // lis r22,0x001f (size of page table)
896		*lp = htonl(POWERPC_NOP);
897
898		// Don't clear page table
899	<	static const uint32 pgtb_ofs[] = {0x198, 0x198, 0x198, 0x1a0, 0x1c4};
899	>	static const uint32 pgtb_ofs[] = {0x198, 0x198, 0x198, 0x1a0, 0x1c0, 0x1c4};
900		lp = (uint32 *)(ROM_BASE + loc + pgtb_ofs[ROMType]);
901		*lp = htonl(POWERPC_NOP);
902
903		// Don't invalidate TLB
904	<	static const uint32 tlb_ofs[] = {0x1a0, 0x1a0, 0x1a0, 0x1a8, 0x1cc};
904	>	static const uint32 tlb_ofs[] = {0x1a0, 0x1a0, 0x1a0, 0x1a8, 0x1c8, 0x1cc};
905		lp = (uint32 *)(ROM_BASE + loc + tlb_ofs[ROMType]);
906		*lp = htonl(POWERPC_NOP);
907
908		// Don't create RAM descriptor table
909	<	static const uint32 desc_ofs[] = {0x350, 0x350, 0x350, 0x358, 0x37c};
909	>	static const uint32 desc_ofs[] = {0x350, 0x350, 0x350, 0x358, 0x378, 0x37c};
910		lp = (uint32 *)(ROM_BASE + loc + desc_ofs[ROMType]);
911		*lp = htonl(POWERPC_NOP);
912
913		// Don't load SRs and BATs
914	<	static const uint32 sr_ofs[] = {0x3d8, 0x3d8, 0x3d8, 0x3e0, 0x404};
914	>	static const uint32 sr_ofs[] = {0x3d8, 0x3d8, 0x3d8, 0x3e0, 0x400, 0x404};
915		lp = (uint32 *)(ROM_BASE + loc + sr_ofs[ROMType]);
916		*lp = htonl(POWERPC_NOP);
917
918		// Don't mess with SRs
919	<	static const uint32 sr2_ofs[] = {0x312118, 0x312118, 0x312118, 0x312118, 0x3121b4};
919	>	static const uint32 sr2_ofs[] = {0x312118, 0x312118, 0x312118, 0x312118, 0x312118, 0x3121b4};
920		lp = (uint32 *)(ROM_BASE + sr2_ofs[ROMType]);
921		*lp = htonl(POWERPC_BLR);
922
923		// Don't check performance monitor
924	<	static const uint32 pm_ofs[] = {0x313148, 0x313148, 0x313148, 0x313148, 0x313218};
924	>	static const uint32 pm_ofs[] = {0x313148, 0x313148, 0x313148, 0x313148, 0x313158, 0x313218};
925		lp = (uint32 *)(ROM_BASE + pm_ofs[ROMType]);
926		while (ntohl(*lp) != 0x7e58eba6) lp++;
927		*lp++ = htonl(POWERPC_NOP);
#	Line 861 \| Line 957 \| static bool patch_nanokernel_boot(void)
957		*lp++ = htonl(POWERPC_NOP);
958
959		// Jump to 68k emulator
960	<	static const uint32 jump68k_ofs[] = {0x40c, 0x40c, 0x40c, 0x414, 0x438};
960	>	static const uint32 jump68k_ofs[] = {0x40c, 0x40c, 0x40c, 0x414, 0x434, 0x438};
961		lp = (uint32 *)(ROM_BASE + loc + jump68k_ofs[ROMType]);
962		*lp++ = htonl(0x80610634); // lwz r3,0x0634(r1) (pointer to Emulator Data)
963		*lp++ = htonl(0x8081119c); // lwz r4,0x119c(r1) (pointer to opcode table)
#	Line 882 \| Line 978 \| static bool patch_68k_emul(void)
978		uint32 base;
979
980		// Overwrite twi instructions
981	<	static const uint32 twi_loc[] = {0x36e680, 0x36e6c0, 0x36e6c0, 0x36e6c0, 0x36e740};
981	>	static const uint32 twi_loc[] = {0x36e680, 0x36e6c0, 0x36e6c0, 0x36e6c0, 0x36e740, 0x36e740};
982		base = twi_loc[ROMType];
983		lp = (uint32 *)(ROM_BASE + base);
984		*lp++ = htonl(0x48000000 + 0x36f900 - base); // b 0x36f900 (Emulator start)
#	Line 903 \| Line 999 \| static bool patch_68k_emul(void)
999		*lp = htonl(POWERPC_ILLEGAL);
1000
1001		#if EMULATED_PPC
1002	<	// Install EMUL_RETURN, EXEC_RETURN and EMUL_OP opcodes
1002	>	// Install EMUL_RETURN, EXEC_RETURN, EXEC_NATIVE and EMUL_OP opcodes
1003		lp = (uint32 *)(ROM_BASE + 0x380000 + (M68K_EMUL_RETURN << 3));
1004		*lp++ = htonl(POWERPC_EMUL_OP);
1005		*lp++ = htonl(0x4bf66e80); // b 0x366084
1006		*lp++ = htonl(POWERPC_EMUL_OP \| 1);
1007		*lp++ = htonl(0x4bf66e78); // b 0x366084
1008	+	*lp++ = htonl(POWERPC_EMUL_OP \| 2);
1009	+	*lp++ = htonl(0x4bf66e70); // b 0x366084
1010		for (int i=0; i<OP_MAX; i++) {
1011	<	*lp++ = htonl(POWERPC_EMUL_OP \| (i + 2));
1012	<	lp++ = htonl(0x4bf66e70 - i8); // b 0x366084
1011	>	*lp++ = htonl(POWERPC_EMUL_OP \| (i + 3));
1012	>	lp++ = htonl(0x4bf66e68 - i8); // b 0x366084
1013		}
1014		#else
1015		// Install EMUL_RETURN, EXEC_RETURN and EMUL_OP opcodes
#	Line 920 \| Line 1018 \| static bool patch_68k_emul(void)
1018		*lp++ = htonl(0x4bf705fc); // b 0x36f800
1019		*lp++ = htonl(0x80000000 + XLM_EXEC_RETURN_PROC); // lwz r0,XLM_EXEC_RETURN_PROC
1020		*lp++ = htonl(0x4bf705f4); // b 0x36f800
1021	+	*lp++ = htonl(0x00dead00); // Let SheepShaver crash, since
1022	+	*lp++ = htonl(0x00beef00); // no native opcode is available
1023		for (int i=0; i<OP_MAX; i++) {
1024		lp++ = htonl(0x38a00000 + i); // li r5,OP_
1025	<	lp++ = htonl(0x4bf705f4 - i8); // b 0x36f808
1025	>	lp++ = htonl(0x4bf705ec - i8); // b 0x36f808
1026		}
1027
1028		// Extra routines for EMUL_RETURN/EXEC_RETURN/EMUL_OP
#	Line 938 \| Line 1038 \| static bool patch_68k_emul(void)
1038		// Extra routine for 68k emulator start
1039		lp = (uint32 *)(ROM_BASE + 0x36f900);
1040		*lp++ = htonl(0x7c2903a6); // mtctr r1
1041	+	#if EMULATED_PPC
1042	+	*lp++ = htonl(NativeOpcode(NATIVE_DISABLE_INTERRUPT));
1043	+	#else
1044		*lp++ = htonl(0x80200000 + XLM_IRQ_NEST); // lwz r1,XLM_IRQ_NEST
1045		*lp++ = htonl(0x38210001); // addi r1,r1,1
1046		*lp++ = htonl(0x90200000 + XLM_IRQ_NEST); // stw r1,XLM_IRQ_NEST
1047	+	#endif
1048		*lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz r1,XLM_KERNEL_DATA
1049		*lp++ = htonl(0x90c10018); // stw r6,0x18(r1)
1050		*lp++ = htonl(0x7cc902a6); // mfctr r6
#	Line 968 \| Line 1072 \| static bool patch_68k_emul(void)
1072		// Extra routine for Mixed Mode
1073		lp = (uint32 *)(ROM_BASE + 0x36fa00);
1074		*lp++ = htonl(0x7c2903a6); // mtctr r1
1075	+	#if EMULATED_PPC
1076	+	*lp++ = htonl(NativeOpcode(NATIVE_DISABLE_INTERRUPT));
1077	+	#else
1078		*lp++ = htonl(0x80200000 + XLM_IRQ_NEST); // lwz r1,XLM_IRQ_NEST
1079		*lp++ = htonl(0x38210001); // addi r1,r1,1
1080		*lp++ = htonl(0x90200000 + XLM_IRQ_NEST); // stw r1,XLM_IRQ_NEST
1081	+	#endif
1082		*lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz r1,XLM_KERNEL_DATA
1083		*lp++ = htonl(0x90c10018); // stw r6,0x18(r1)
1084		*lp++ = htonl(0x7cc902a6); // mfctr r6
#	Line 996 \| Line 1104 \| static bool patch_68k_emul(void)
1104		*lp = htonl(0x4e800020); // blr
1105
1106		// Extra routine for Reset/FC1E opcode
1107	<	lp = (uint32 *)(ROM_BASE + 0x36fc00);
1107	>	lp = (uint32 *)(ROM_BASE + 0x36fb00);
1108		*lp++ = htonl(0x7c2903a6); // mtctr r1
1109	+	#if EMULATED_PPC
1110	+	*lp++ = htonl(NativeOpcode(NATIVE_DISABLE_INTERRUPT));
1111	+	#else
1112		*lp++ = htonl(0x80200000 + XLM_IRQ_NEST); // lwz r1,XLM_IRQ_NEST
1113		*lp++ = htonl(0x38210001); // addi r1,r1,1
1114		*lp++ = htonl(0x90200000 + XLM_IRQ_NEST); // stw r1,XLM_IRQ_NEST
1115	+	#endif
1116		*lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz r1,XLM_KERNEL_DATA
1117		*lp++ = htonl(0x90c10018); // stw r6,0x18(r1)
1118		*lp++ = htonl(0x7cc902a6); // mfctr r6
#	Line 1017 \| Line 1129 \| static bool patch_68k_emul(void)
1129		*lp++ = htonl(0x80e10660); // lwz r7,$0660(r1)
1130		*lp++ = htonl(0x7d8802a6); // mflr r12
1131		*lp++ = htonl(0x50e74001); // rlwimi. r7,r7,8,$80000000
1132	<	*lp++ = htonl(0x814105f4); // lwz r10,0x05f8(r1)
1132	>	*lp++ = htonl(0x814105f8); // lwz r10,0x05f8(r1)
1133		*lp++ = htonl(0x7d4803a6); // mtlr r10
1134		*lp++ = htonl(0x7d8a6378); // mr r10,r12
1135		*lp++ = htonl(0x3d600002); // lis r11,0x0002
#	Line 1028 \| Line 1140 \| static bool patch_68k_emul(void)
1140		// Extra routine for FE0A opcode (QuickDraw 3D needs this)
1141		lp = (uint32 *)(ROM_BASE + 0x36fc00);
1142		*lp++ = htonl(0x7c2903a6); // mtctr r1
1143	+	#if EMULATED_PPC
1144	+	*lp++ = htonl(NativeOpcode(NATIVE_DISABLE_INTERRUPT));
1145	+	#else
1146		*lp++ = htonl(0x80200000 + XLM_IRQ_NEST); // lwz r1,XLM_IRQ_NEST
1147		*lp++ = htonl(0x38210001); // addi r1,r1,1
1148		*lp++ = htonl(0x90200000 + XLM_IRQ_NEST); // stw r1,XLM_IRQ_NEST
1149	+	#endif
1150		*lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz r1,XLM_KERNEL_DATA
1151		*lp++ = htonl(0x90c10018); // stw r6,0x18(r1)
1152		*lp++ = htonl(0x7cc902a6); // mfctr r6
#	Line 1047 \| Line 1163 \| static bool patch_68k_emul(void)
1163		*lp++ = htonl(0x80e10660); // lwz r7,$0660(r1)
1164		*lp++ = htonl(0x7d8802a6); // mflr r12
1165		*lp++ = htonl(0x50e74001); // rlwimi. r7,r7,8,$80000000
1166	<	*lp++ = htonl(0x814105f4); // lwz r10,0x05fc(r1)
1166	>	*lp++ = htonl(0x814105fc); // lwz r10,0x05fc(r1)
1167		*lp++ = htonl(0x7d4803a6); // mtlr r10
1168		*lp++ = htonl(0x7d8a6378); // mr r10,r12
1169		*lp++ = htonl(0x3d600002); // lis r11,0x0002
#	Line 1165 \| Line 1281 \| static bool patch_nanokernel(void)
1281		*lp = htonl(POWERPC_BCTR);
1282
1283		lp = (uint32 *)(ROM_BASE + 0x318000);
1284	+	#if EMULATED_PPC
1285	+	*lp++ = htonl(NativeOpcode(NATIVE_ENABLE_INTERRUPT));
1286	+	*lp = htonl(0x48000000 + ((xlp - 0x8004) & 0x03fffffc)); // b ROM_BASE+0x312c2c
1287	+	#else
1288		*lp++ = htonl(0x81400000 + XLM_IRQ_NEST); // lwz r10,XLM_IRQ_NEST
1289		*lp++ = htonl(0x394affff); // subi r10,r10,1
1290		*lp++ = htonl(0x91400000 + XLM_IRQ_NEST); // stw r10,XLM_IRQ_NEST
1291		*lp = htonl(0x48000000 + ((xlp - 0x800c) & 0x03fffffc)); // b ROM_BASE+0x312c2c
1292	+	#endif
1293	+
1294		/*
1295		// Disable FE0A/FE06 opcodes
1296		lp = (uint32 *)(ROM_BASE + 0x3144ac);
#	Line 1214 \| Line 1336 \| static bool patch_68k(void)
1336		// Patch UniversalInfo
1337		if (ROMType == ROMTYPE_NEWWORLD) {
1338		static const uint8 univ_info_dat[] = {0x3f, 0xff, 0x04, 0x00};
1339	<	if ((base = find_rom_data(0x14000, 0x16000, univ_info_dat, sizeof(univ_info_dat))) == 0) return false;
1339	>	if ((base = find_rom_data(0x14000, 0x18000, univ_info_dat, sizeof(univ_info_dat))) == 0) return false;
1340		D(bug("universal_info %08lx\n", base));
1341		lp = (uint32 *)(ROM_BASE + base - 0x14);
1342		lp[0x00 >> 2] = htonl(ADDR_MAP_PATCH_SPACE - (base - 0x14));
#	Line 1238 \| Line 1360 \| static bool patch_68k(void)
1360		lp[0x28 >> 2] = htonl(0x00000861);
1361		lp[0x58 >> 2] = htonl(0x30200000);
1362		lp[0x60 >> 2] = htonl(0x0000003d);
1363	+	} else if (ROMType == ROMTYPE_GOSSAMER) {
1364	+	base = 0x12d20;
1365	+	lp = (uint32 *)(ROM_BASE + base - 0x14);
1366	+	lp[0x00 >> 2] = htonl(ADDR_MAP_PATCH_SPACE - (base - 0x14));
1367	+	lp[0x10 >> 2] = htonl(0xcc003d11); // Make it like the PowerMac 9500 UniversalInfo
1368	+	lp[0x14 >> 2] = htonl(0x3fff0401);
1369	+	lp[0x18 >> 2] = htonl(0x0300001c);
1370	+	lp[0x1c >> 2] = htonl(0x000108c4);
1371	+	lp[0x24 >> 2] = htonl(0xc301bf26);
1372	+	lp[0x28 >> 2] = htonl(0x00000861);
1373	+	lp[0x58 >> 2] = htonl(0x30410000);
1374	+	lp[0x60 >> 2] = htonl(0x0000003d);
1375		}
1376
1377		// Construct AddrMap for NewWorld ROM
1378	<	if (ROMType == ROMTYPE_NEWWORLD \|\| ROMType == ROMTYPE_ZANZIBAR) {
1378	>	if (ROMType == ROMTYPE_NEWWORLD \|\| ROMType == ROMTYPE_ZANZIBAR \|\| ROMType == ROMTYPE_GOSSAMER) {
1379		lp = (uint32 *)(ROM_BASE + ADDR_MAP_PATCH_SPACE);
1380		memset(lp - 10, 0, 0x128);
1381		lp[-10] = htonl(0x0300001c);
#	Line 1367 \| Line 1501 \| static bool patch_68k(void)
1501		*wp++ = htons(M68K_EMUL_OP_XPRAM2);
1502		*wp = htons(0x4ed3); // jmp (a3)
1503
1504	<	static const uint32 nvram3_loc[] = {0x582f0, 0xa0a0, 0x7e50, 0xa1d0, 0};
1505	<	wp = (uint16 *)(ROM_BASE + nvram3_loc[ROMType]);
1504	>	static const uint8 nvram3_dat[] = {0x4e, 0xd3, 0x06, 0x41, 0x13, 0x00};
1505	>	if ((base = find_rom_data(0x7000, 0xb000, nvram3_dat, sizeof(nvram3_dat))) == 0) return false;
1506	>	D(bug("nvram3 %08lx\n", base));
1507	>	wp = (uint16 *)(ROM_BASE + base + 2);
1508	>	*wp++ = htons(M68K_EMUL_OP_XPRAM3);
1509	>	*wp = htons(0x4ed3); // jmp (a3)
1510	>
1511	>	static const uint32 nvram4_loc[] = {0x582f0, 0xa0a0, 0x7e50, 0xa1d0, 0x538d0, 0};
1512	>	wp = (uint16 *)(ROM_BASE + nvram4_loc[ROMType]);
1513		*wp++ = htons(0x202f); // move.l 4(sp),d0
1514		*wp++ = htons(0x0004);
1515		*wp++ = htons(M68K_EMUL_OP_NVRAM1);
#	Line 1381 \| Line 1522 \| static bool patch_68k(void)
1522		*wp = htons(0x0004);
1523		}
1524
1525	<	static const uint32 nvram4_loc[] = {0x58460, 0xa0f0, 0x7f40, 0xa220, 0};
1526	<	wp = (uint16 *)(ROM_BASE + nvram4_loc[ROMType]);
1525	>	static const uint32 nvram5_loc[] = {0x58460, 0xa0f0, 0x7f40, 0xa220, 0x53a20, 0};
1526	>	wp = (uint16 *)(ROM_BASE + nvram5_loc[ROMType]);
1527		if (ROMType == ROMTYPE_ZANZIBAR \|\| ROMType == ROMTYPE_GAZELLE) {
1528		*wp++ = htons(0x202f); // move.l 4(sp),d0
1529		*wp++ = htons(0x0004);
#	Line 1559 \| Line 1700 \| static bool patch_68k(void)
1700		if ((base = find_rom_data(0x13000, 0x20000, gc_mask2_dat, sizeof(gc_mask2_dat))) == 0) return false;
1701		D(bug("gc_mask2 %08lx\n", base));
1702		wp = (uint16 *)(ROM_BASE + base);
1703	+	if (ROMType == ROMTYPE_GOSSAMER)
1704	+	*wp++ = htons(M68K_NOP);
1705		for (int i=0; i<5; i++) {
1706		*wp++ = htons(M68K_NOP);
1707		*wp++ = htons(M68K_NOP);
#	Line 1566 \| Line 1709 \| static bool patch_68k(void)
1709		*wp++ = htons(M68K_NOP);
1710		wp += 2;
1711		}
1712	<	if (ROMType == ROMTYPE_ZANZIBAR) {
1712	>	if (ROMType == ROMTYPE_ZANZIBAR \|\| ROMType == ROMTYPE_GOSSAMER) {
1713		for (int i=0; i<6; i++) {
1714		*wp++ = htons(M68K_NOP);
1715		*wp++ = htons(M68K_NOP);
#	Line 1592 \| Line 1735 \| static bool patch_68k(void)
1735
1736		// Patch GetCPUSpeed (via 0x27a) (some ROMs have two of them)
1737		static const uint8 cpu_speed_dat[] = {0x20, 0x30, 0x81, 0xf2, 0x5f, 0xff, 0xef, 0xd8, 0x00, 0x04, 0x4c, 0x7c};
1738	<	if ((base = find_rom_data(0x6000, 0x9000, cpu_speed_dat, sizeof(cpu_speed_dat))) == 0) return false;
1738	>	if ((base = find_rom_data(0x6000, 0xa000, cpu_speed_dat, sizeof(cpu_speed_dat))) == 0) return false;
1739		D(bug("cpu_speed %08lx\n", base));
1740		wp = (uint16 *)(ROM_BASE + base);
1741		*wp++ = htons(0x203c); // move.l #(MHz<<16)\|MHz,d0
1742		*wp++ = htons(CPUClockSpeed / 1000000);
1743		*wp++ = htons(CPUClockSpeed / 1000000);
1744		*wp = htons(M68K_RTS);
1745	<	if ((base = find_rom_data(base, 0x9000, cpu_speed_dat, sizeof(cpu_speed_dat))) != 0) {
1745	>	if ((base = find_rom_data(base, 0xa000, cpu_speed_dat, sizeof(cpu_speed_dat))) != 0) {
1746		D(bug("cpu_speed2 %08lx\n", base));
1747		wp = (uint16 *)(ROM_BASE + base);
1748		*wp++ = htons(0x203c); // move.l #(MHz<<16)\|MHz,d0
#	Line 1639 \| Line 1782 \| static bool patch_68k(void)
1782		*wp = htons(M68K_RTS);
1783
1784		// Don't install Time Manager task for 60Hz interrupt (Enable60HzInts, via 0x2b8)
1785	<	if (ROMType == ROMTYPE_NEWWORLD) {
1785	>	if (ROMType == ROMTYPE_NEWWORLD \|\| ROMType == ROMTYPE_GOSSAMER) {
1786		static const uint8 tm_task_dat[] = {0x30, 0x3c, 0x4e, 0x2b, 0xa9, 0xc9};
1787	<	if ((base = find_rom_data(0x2e0, 0x320, tm_task_dat, sizeof(tm_task_dat))) == 0) return false;
1787	>	if ((base = find_rom_data(0x2a0, 0x320, tm_task_dat, sizeof(tm_task_dat))) == 0) return false;
1788		D(bug("tm_task %08lx\n", base));
1789		wp = (uint16 *)(ROM_BASE + base + 28);
1790		*wp++ = htons(M68K_NOP);
#	Line 1661 \| Line 1804 \| static bool patch_68k(void)
1804		}
1805
1806		// Don't read PVR from 0x5fffef80 in DriverServicesLib (via 0x316)
1807	<	if (ROMType != ROMTYPE_NEWWORLD) {
1807	>	if (ROMType != ROMTYPE_NEWWORLD && ROMType != ROMTYPE_GOSSAMER) {
1808		uint32 dsl_offset = find_rom_resource(FOURCC('n','l','i','b'), -16401);
1809		if (ROMType == ROMTYPE_ZANZIBAR) {
1810		static const uint8 dsl_pvr_dat[] = {0x40, 0x82, 0x00, 0x40, 0x38, 0x60, 0xef, 0x80, 0x3c, 0x63, 0x60, 0x00, 0x80, 0x83, 0x00, 0x00, 0x54, 0x84, 0x84, 0x3e};
#	Line 1747 \| Line 1890 \| static bool patch_68k(void)
1890		D(bug("scsi_var2 %08lx\n", base));
1891		wp = (uint16 *)(ROM_BASE + base);
1892		*wp++ = htons(0x7000); // moveq #0,d0
1893	<	*wp = htons(M68K_RTS); // bra
1893	>	*wp = htons(M68K_RTS);
1894	>	}
1895	>	}
1896	>	else if (ROMType == ROMTYPE_GOSSAMER) {
1897	>	static const uint8 scsi_var_dat[] = {0x70, 0x01, 0xa0, 0x89, 0x4a, 0x6e, 0xfe, 0xac, 0x4f, 0xef, 0x00, 0x10, 0x66, 0x00};
1898	>	if ((base = find_rom_data(0x1d700, 0x1d800, scsi_var_dat, sizeof(scsi_var_dat))) != 0) {
1899	>	D(bug("scsi_var %08lx\n", base));
1900	>	wp = (uint16 *)(ROM_BASE + base + 12);
1901	>	*wp = htons(0x6000); // bra
1902	>	}
1903	>
1904	>	static const uint8 scsi_var2_dat[] = {0x4e, 0x56, 0xfc, 0x5a, 0x48, 0xe7, 0x1f, 0x38};
1905	>	if ((base = find_rom_data(0x1d900, 0x1da00, scsi_var2_dat, sizeof(scsi_var2_dat))) != 0) {
1906	>	D(bug("scsi_var2 %08lx\n", base));
1907	>	wp = (uint16 *)(ROM_BASE + base);
1908	>	*wp++ = htons(0x7000); // moveq #0,d0
1909	>	*wp = htons(M68K_RTS);
1910		}
1911		}
1912		#endif
#	Line 1803 \| Line 1962 \| static bool patch_68k(void)
1962		memcpy((void *)(ROM_BASE + sony_offset + 0x200), cdrom_driver, sizeof(cdrom_driver));
1963
1964		// Install serial drivers
1965	<	memcpy((void *)(ROM_BASE + sony_offset + 0x300), ain_driver, sizeof(ain_driver));
1966	<	memcpy((void *)(ROM_BASE + sony_offset + 0x400), aout_driver, sizeof(aout_driver));
1967	<	memcpy((void *)(ROM_BASE + sony_offset + 0x500), bin_driver, sizeof(bin_driver));
1968	<	memcpy((void *)(ROM_BASE + sony_offset + 0x600), bout_driver, sizeof(bout_driver));
1965	>	gen_ain_driver( ROM_BASE + sony_offset + 0x300);
1966	>	gen_aout_driver(ROM_BASE + sony_offset + 0x400);
1967	>	gen_bin_driver( ROM_BASE + sony_offset + 0x500);
1968	>	gen_bout_driver(ROM_BASE + sony_offset + 0x600);
1969
1970		// Copy icons to ROM
1971		SonyDiskIconAddr = ROM_BASE + sony_offset + 0x800;
#	Line 1827 \| Line 1986 \| static bool patch_68k(void)
1986		*wp = htons(M68K_RTS);
1987
1988		// Don't install serial drivers from ROM
1989	<	if (ROMType == ROMTYPE_ZANZIBAR \|\| ROMType == ROMTYPE_NEWWORLD) {
1989	>	if (ROMType == ROMTYPE_ZANZIBAR \|\| ROMType == ROMTYPE_NEWWORLD \|\| ROMType == ROMTYPE_GOSSAMER) {
1990		wp = (uint16 *)(ROM_BASE + find_rom_resource(FOURCC('S','E','R','D'), 0));
1991		*wp = htons(M68K_RTS);
1992		} else {
#	Line 1886 \| Line 2045 \| static bool patch_68k(void)
2045		wp = (uint16 *)(ROM_BASE + base);
2046		if (ROMType == ROMTYPE_ZANZIBAR)
2047		*wp = htons(M68K_RTS);
2048	<	else
2048	>	else if (ntohs(wp[-4]) == 0x61ff)
2049	>	*wp = htons(M68K_RTS);
2050	>	else if (ntohs(wp[-2]) == 0x6700)
2051		wp[-2] = htons(0x6000); // bra
2052
2053		// Patch PowerOff()
#	Line 1916 \| Line 2077 \| static bool patch_68k(void)
2077
2078		if (ROMType == ROMTYPE_NEWWORLD) {
2079		static const uint8 via_int3_dat[] = {0x48, 0xe7, 0xf0, 0xf0, 0x76, 0x01, 0x60, 0x26};
2080	<	if ((base = find_rom_data(0x15000, 0x18000, via_int3_dat, sizeof(via_int3_dat))) == 0) return false;
2080	>	if ((base = find_rom_data(0x15000, 0x19000, via_int3_dat, sizeof(via_int3_dat))) == 0) return false;
2081		D(bug("via_int3 %08lx\n", base));
2082		wp = (uint16 *)(ROM_BASE + base); // CHRP level 1 handler
2083		*wp++ = htons(M68K_JMP);
#	Line 2006 \| Line 2167 \| void InstallDrivers(void)
2167		{
2168		D(bug("Installing drivers...\n"));
2169		M68kRegisters r;
2170	<	uint8 pb[SIZEOF_IOParam];
2170	>	SheepArray<SIZEOF_IOParam> pb_var;
2171	>	const uintptr pb = pb_var.addr();
2172	>
2173	>	// Install floppy driver
2174	>	if (ROMType == ROMTYPE_NEWWORLD \|\| ROMType == ROMTYPE_GOSSAMER) {
2175	>
2176	>	// Force installation of floppy driver with NewWorld and Gossamer ROMs
2177	>	r.a[0] = ROM_BASE + sony_offset;
2178	>	r.d[0] = (uint32)SonyRefNum;
2179	>	Execute68kTrap(0xa43d, &r); // DrvrInstallRsrvMem()
2180	>	r.a[0] = ReadMacInt32(ReadMacInt32(0x11c) + ~SonyRefNum * 4); // Get driver handle from Unit Table
2181	>	Execute68kTrap(0xa029, &r); // HLock()
2182	>	uint32 dce = ReadMacInt32(r.a[0]);
2183	>	WriteMacInt32(dce + dCtlDriver, ROM_BASE + sony_offset);
2184	>	WriteMacInt16(dce + dCtlFlags, SonyDriverFlags);
2185	>	}
2186	>
2187	>	#if DISABLE_SCSI && 0
2188	>	// Fake SCSIGlobals
2189	>	static const uint8 fake_scsi_globals[32] = {0,};
2190	>	WriteMacInt32(0xc0c, (uint32)fake_scsi_globals);
2191	>	#endif
2192
2193		// Open .Sony driver
2194	<	WriteMacInt8((uint32)pb + ioPermssn, 0);
2195	<	WriteMacInt32((uint32)pb + ioNamePtr, (uint32)"\005.Sony");
2196	<	r.a[0] = (uint32)pb;
2194	>	SheepString sony_str("\005.Sony");
2195	>	WriteMacInt8(pb + ioPermssn, 0);
2196	>	WriteMacInt32(pb + ioNamePtr, sony_str.addr());
2197	>	r.a[0] = pb;
2198		Execute68kTrap(0xa000, &r); // Open()
2199
2200		// Install disk driver
#	Line 2025 \| Line 2208 \| void InstallDrivers(void)
2208		WriteMacInt16(dce + dCtlFlags, DiskDriverFlags);
2209
2210		// Open disk driver
2211	<	WriteMacInt32((uint32)pb + ioNamePtr, (uint32)"\005.Disk");
2212	<	r.a[0] = (uint32)pb;
2211	>	SheepString disk_str("\005.Disk");
2212	>	WriteMacInt32(pb + ioNamePtr, disk_str.addr());
2213	>	r.a[0] = pb;
2214		Execute68kTrap(0xa000, &r); // Open()
2215
2216		// Install CD-ROM driver unless nocdrom option given
#	Line 2043 \| Line 2227 \| void InstallDrivers(void)
2227		WriteMacInt16(dce + dCtlFlags, CDROMDriverFlags);
2228
2229		// Open CD-ROM driver
2230	<	WriteMacInt32((uint32)pb + ioNamePtr, (uint32)"\010.AppleCD");
2231	<	r.a[0] = (uint32)pb;
2230	>	SheepString apple_cd("\010.AppleCD");
2231	>	WriteMacInt32(pb + ioNamePtr, apple_cd.addr());
2232	>	r.a[0] = pb;
2233		Execute68kTrap(0xa000, &r); // Open()
2234		}
2235

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Comparing SheepShaver/src/rom_patches.cpp (file contents): Revision 1.1.1.1 by cebix, 2002-02-04T16:58:13Z vs. Revision 1.18 by gbeauche, 2003-12-04T17:26:35Z

Diff Legend

Comparing SheepShaver/src/rom_patches.cpp (file contents):
Revision 1.1.1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.18 by gbeauche, 2003-12-04T17:26:35Z