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root/cebix/SheepShaver/src/rom_patches.cpp

Comparing SheepShaver/src/rom_patches.cpp (file contents):
Revision 1.9 by gbeauche, 2003-09-29T20:30:19Z vs.
Revision 1.19 by gbeauche, 2003-12-05T12:37:14Z

#	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 131 | Line 132 | void decode_parcels(const uint8 *src, ui
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 = ((uint32)src + parcel_offset) - ((uint32)parcel_data + lzss_offset);
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;
#	Line 447 | Line 448 | static const uint8 cdrom_driver[] = {  //
448		0x4e, 0x75                                                      //  rts
449		};
450
451	<	#if EMULATED_PPC
451	<	#define SERIAL_TRAMPOLINES 1
452	<	static uint32 serial_nothing_tvect[2] = {POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_NOTHING), 0};
453	<	static uint32 serial_open_tvect[2] = {POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_OPEN), 0};
454	<	static uint32 serial_prime_in_tvect[2] = {POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_PRIME_IN), 0};
455	<	static uint32 serial_prime_out_tvect[2] = {POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_PRIME_OUT), 0};
456	<	static uint32 serial_control_tvect[2] = {POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_CONTROL), 0};
457	<	static uint32 serial_status_tvect[2] = {POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_STATUS), 0};
458	<	static uint32 serial_close_tvect[2] = {POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_CLOSE), 0};
459	<	#elif defined(__linux__)
460	<	#define SERIAL_TRAMPOLINES 1
461	<	static uint32 serial_nothing_tvect[2] = {(uint32)SerialNothing, 0};
462	<	static uint32 serial_open_tvect[2] = {(uint32)SerialOpen, 0};
463	<	static uint32 serial_prime_in_tvect[2] = {(uint32)SerialPrimeIn, 0};
464	<	static uint32 serial_prime_out_tvect[2] = {(uint32)SerialPrimeOut, 0};
465	<	static uint32 serial_control_tvect[2] = {(uint32)SerialControl, 0};
466	<	static uint32 serial_status_tvect[2] = {(uint32)SerialStatus, 0};
467	<	static uint32 serial_close_tvect[2] = {(uint32)SerialClose, 0};
468	<	#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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
510	<	0x00010004, (uint32)serial_nothing_tvect,
511	<	#else
512	<	0x00010004, (uint32)SerialNothing,
513	<	#endif
514	<	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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
519	<	0x00010004, (uint32)serial_control_tvect,
520	<	#else
521	<	0x00010004, (uint32)SerialControl,
522	<	#endif
523	<	0x00000000, 0x00000000,
546	<	0xaafe0700, 0x00000000,
547	<	0x00000000, 0x00179822,
548	<	#ifdef SERIAL_TRAMPOLINES
549	<	0x00010004, (uint32)serial_status_tvect,
550	<	#else
551	<	0x00010004, (uint32)SerialStatus,
552	<	#endif
553	<	0x00000000, 0x00000000,
554	<	0xaafe0700, 0x00000000,
555	<	0x00000000, 0x00179822,
556	<	#ifdef SERIAL_TRAMPOLINES
557	<	0x00010004, (uint32)serial_close_tvect,
558	<	#else
559	<	0x00010004, (uint32)SerialClose,
560	<	#endif
561	<	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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
550	<	0x00010004, (uint32)serial_control_tvect,
551	<	#else
552	<	0x00010004, (uint32)SerialControl,
553	<	#endif
554	<	0x00000000, 0x00000000,
593	<	0xaafe0700, 0x00000000,
594	<	0x00000000, 0x00179822,
595	<	#ifdef SERIAL_TRAMPOLINES
596	<	0x00010004, (uint32)serial_status_tvect,
597	<	#else
598	<	0x00010004, (uint32)SerialStatus,
599	<	#endif
600	<	0x00000000, 0x00000000,
601	<	0xaafe0700, 0x00000000,
602	<	0x00000000, 0x00179822,
603	<	#ifdef SERIAL_TRAMPOLINES
604	<	0x00010004, (uint32)serial_nothing_tvect,
605	<	#else
606	<	0x00010004, (uint32)SerialNothing,
607	<	#endif
608	<	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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
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 SERIAL_TRAMPOLINES
581	<	0x00010004, (uint32)serial_control_tvect,
582	<	#else
583	<	0x00010004, (uint32)SerialControl,
584	<	#endif
585	<	0x00000000, 0x00000000,
640	<	0xaafe0700, 0x00000000,
641	<	0x00000000, 0x00179822,
642	<	#ifdef SERIAL_TRAMPOLINES
643	<	0x00010004, (uint32)serial_status_tvect,
644	<	#else
645	<	0x00010004, (uint32)SerialStatus,
646	<	#endif
647	<	0x00000000, 0x00000000,
648	<	0xaafe0700, 0x00000000,
649	<	0x00000000, 0x00179822,
650	<	#ifdef SERIAL_TRAMPOLINES
651	<	0x00010004, (uint32)serial_close_tvect,
652	<	#else
653	<	0x00010004, (uint32)SerialClose,
654	<	#endif
655	<	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 718 | 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 767 | 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 782 | 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 930 | 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 947 | Line 889 | static bool patch_nanokernel_boot(void)
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 1015 | 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 1036 | 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 1097 | Line 1039 | static bool patch_68k_emul(void)
1039		lp = (uint32 *)(ROM_BASE + 0x36f900);
1040		*lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1041		#if EMULATED_PPC
1042	<	*lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
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
#	Line 1131 | Line 1073 | static bool patch_68k_emul(void)
1073		lp = (uint32 *)(ROM_BASE + 0x36fa00);
1074		*lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1075		#if EMULATED_PPC
1076	<	*lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
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
#	Line 1165 | Line 1107 | static bool patch_68k_emul(void)
1107		lp = (uint32 *)(ROM_BASE + 0x36fb00);
1108		*lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1109		#if EMULATED_PPC
1110	<	*lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
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
#	Line 1199 | Line 1141 | static bool patch_68k_emul(void)
1141		lp = (uint32 *)(ROM_BASE + 0x36fc00);
1142		*lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1143		#if EMULATED_PPC
1144	<	*lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
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
#	Line 1340 | Line 1282 | static bool patch_nanokernel(void)
1282
1283		lp = (uint32 *)(ROM_BASE + 0x318000);
1284		#if EMULATED_PPC
1285	<	*lp++ = POWERPC_NATIVE_OP(NATIVE_ENABLE_INTERRUPT);
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
#	Line 1418 | 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 1547 | 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 1561 | 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 1739 | 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 1746 | 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 1819 | 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 1841 | 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 1876 | Line 1839 | static bool patch_68k(void)
1839		*lp = htonl(0x38600000);                // li   r3,0
1840		}
1841
1842	+	// FIXME: Fake reading from [HpChk]+4 (the callchain reports some function from DriverServicesLib)
1843	+	if (1) {
1844	+	uint32 hpchk_offset = find_rom_resource(FOURCC('n','l','i','b'), 10);
1845	+	static const uint8 hpchk_dat[] = {0x80, 0x80, 0x03, 0x16, 0x94, 0x21, 0xff, 0xb0, 0x83, 0xc4, 0x00, 0x04};
1846	+	if ((base = find_rom_data(hpchk_offset, hpchk_offset + 0x3000, hpchk_dat, sizeof(hpchk_dat))) == 0) return false;
1847	+	D(bug("hpchk %08lx\n", base));
1848	+	lp = (uint32 *)(ROM_BASE + base);
1849	+	*lp = htonl(0x80800000 + XLM_ZERO_PAGE);                // lwz  r4,(zero page)
1850	+	}
1851	+
1852		// Patch Name Registry
1853		static const uint8 name_reg_dat[] = {0x70, 0xff, 0xab, 0xeb};
1854		if ((base = find_rom_data(0x300, 0x380, name_reg_dat, sizeof(name_reg_dat))) == 0) return false;
#	Line 1927 | Line 1900 | static bool patch_68k(void)
1900		D(bug("scsi_var2 %08lx\n", base));
1901		wp = (uint16 *)(ROM_BASE + base);
1902		*wp++ = htons(0x7000);  // moveq #0,d0
1903	<	*wp = htons(M68K_RTS);  // bra
1903	>	*wp = htons(M68K_RTS);
1904	>	}
1905	>	}
1906	>	else if (ROMType == ROMTYPE_GOSSAMER) {
1907	>	static const uint8 scsi_var_dat[] = {0x70, 0x01, 0xa0, 0x89, 0x4a, 0x6e, 0xfe, 0xac, 0x4f, 0xef, 0x00, 0x10, 0x66, 0x00};
1908	>	if ((base = find_rom_data(0x1d700, 0x1d800, scsi_var_dat, sizeof(scsi_var_dat))) != 0) {
1909	>	D(bug("scsi_var %08lx\n", base));
1910	>	wp = (uint16 *)(ROM_BASE + base + 12);
1911	>	*wp = htons(0x6000);    // bra
1912	>	}
1913	>
1914	>	static const uint8 scsi_var2_dat[] = {0x4e, 0x56, 0xfc, 0x5a, 0x48, 0xe7, 0x1f, 0x38};
1915	>	if ((base = find_rom_data(0x1d900, 0x1da00, scsi_var2_dat, sizeof(scsi_var2_dat))) != 0) {
1916	>	D(bug("scsi_var2 %08lx\n", base));
1917	>	wp = (uint16 *)(ROM_BASE + base);
1918	>	*wp++ = htons(0x7000);  // moveq #0,d0
1919	>	*wp = htons(M68K_RTS);
1920		}
1921		}
1922		#endif
#	Line 1983 | Line 1972 | static bool patch_68k(void)
1972		memcpy((void *)(ROM_BASE + sony_offset + 0x200), cdrom_driver, sizeof(cdrom_driver));
1973
1974		// Install serial drivers
1975	<	memcpy_powerpc_code((void *)(ROM_BASE + sony_offset + 0x300), ain_driver, sizeof(ain_driver));
1976	<	memcpy_powerpc_code((void *)(ROM_BASE + sony_offset + 0x400), aout_driver, sizeof(aout_driver));
1977	<	memcpy_powerpc_code((void *)(ROM_BASE + sony_offset + 0x500), bin_driver, sizeof(bin_driver));
1978	<	memcpy_powerpc_code((void *)(ROM_BASE + sony_offset + 0x600), bout_driver, sizeof(bout_driver));
1975	>	gen_ain_driver( ROM_BASE + sony_offset + 0x300);
1976	>	gen_aout_driver(ROM_BASE + sony_offset + 0x400);
1977	>	gen_bin_driver( ROM_BASE + sony_offset + 0x500);
1978	>	gen_bout_driver(ROM_BASE + sony_offset + 0x600);
1979
1980		// Copy icons to ROM
1981		SonyDiskIconAddr = ROM_BASE + sony_offset + 0x800;
#	Line 2007 | Line 1996 | static bool patch_68k(void)
1996		*wp = htons(M68K_RTS);
1997
1998		// Don't install serial drivers from ROM
1999	<	if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_NEWWORLD) {
1999	>	if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_NEWWORLD || ROMType == ROMTYPE_GOSSAMER) {
2000		wp = (uint16 *)(ROM_BASE + find_rom_resource(FOURCC('S','E','R','D'), 0));
2001		*wp = htons(M68K_RTS);
2002		} else {
#	Line 2188 | Line 2177 | void InstallDrivers(void)
2177		{
2178		D(bug("Installing drivers...\n"));
2179		M68kRegisters r;
2180	<	uint8 pb[SIZEOF_IOParam];
2180	>	SheepArray<SIZEOF_IOParam> pb_var;
2181	>	const uintptr pb = pb_var.addr();
2182
2183		// Install floppy driver
2184	<	if (ROMType == ROMTYPE_NEWWORLD) {
2184	>	if (ROMType == ROMTYPE_NEWWORLD || ROMType == ROMTYPE_GOSSAMER) {
2185
2186	<	// Force installation of floppy driver with NewWorld ROMs
2186	>	// Force installation of floppy driver with NewWorld and Gossamer ROMs
2187		r.a[0] = ROM_BASE + sony_offset;
2188		r.d[0] = (uint32)SonyRefNum;
2189		Execute68kTrap(0xa43d, &r);             // DrvrInstallRsrvMem()
#	Line 2206 | Line 2196 | void InstallDrivers(void)
2196
2197		#if DISABLE_SCSI && 0
2198		// Fake SCSIGlobals
2199	<	static const uint8 fake_scsi_globals[32] = {0,};
2210	<	WriteMacInt32(0xc0c, (uint32)fake_scsi_globals);
2199	>	WriteMacInt32(0xc0c, SheepMem::ZeroPage());
2200		#endif
2201
2202		// Open .Sony driver
2203	<	WriteMacInt8((uint32)pb + ioPermssn, 0);
2204	<	WriteMacInt32((uint32)pb + ioNamePtr, (uint32)"\005.Sony");
2205	<	r.a[0] = (uint32)pb;
2203	>	SheepString sony_str("\005.Sony");
2204	>	WriteMacInt8(pb + ioPermssn, 0);
2205	>	WriteMacInt32(pb + ioNamePtr, sony_str.addr());
2206	>	r.a[0] = pb;
2207		Execute68kTrap(0xa000, &r);             // Open()
2208
2209		// Install disk driver
#	Line 2227 | Line 2217 | void InstallDrivers(void)
2217		WriteMacInt16(dce + dCtlFlags, DiskDriverFlags);
2218
2219		// Open disk driver
2220	<	WriteMacInt32((uint32)pb + ioNamePtr, (uint32)"\005.Disk");
2221	<	r.a[0] = (uint32)pb;
2220	>	SheepString disk_str("\005.Disk");
2221	>	WriteMacInt32(pb + ioNamePtr, disk_str.addr());
2222	>	r.a[0] = pb;
2223		Execute68kTrap(0xa000, &r);             // Open()
2224
2225		// Install CD-ROM driver unless nocdrom option given
#	Line 2245 | Line 2236 | void InstallDrivers(void)
2236		WriteMacInt16(dce + dCtlFlags, CDROMDriverFlags);
2237
2238		// Open CD-ROM driver
2239	<	WriteMacInt32((uint32)pb + ioNamePtr, (uint32)"\010.AppleCD");
2240	<	r.a[0] = (uint32)pb;
2239	>	SheepString apple_cd("\010.AppleCD");
2240	>	WriteMacInt32(pb + ioNamePtr, apple_cd.addr());
2241	>	r.a[0] = pb;
2242		Execute68kTrap(0xa000, &r);             // Open()
2243		}
2244

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