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root/cebix/SheepShaver/src/rom_patches.cpp
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Comparing SheepShaver/src/rom_patches.cpp (file contents):
Revision 1.4 by gbeauche, 2003-05-17T08:42:34Z vs.
Revision 1.13 by gbeauche, 2003-10-05T23:49:19Z

# Line 447 | Line 447 | static const uint8 cdrom_driver[] = {  //
447          0x4e, 0x75                                                      //  rts
448   };
449  
450 < #ifdef __linux__
450 > #if EMULATED_PPC
451 > #define SERIAL_TRAMPOLINES 1
452 > static uint32 serial_nothing_tvect[2] = {tswap32(POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_NOTHING)), 0};
453 > static uint32 serial_open_tvect[2] = {tswap32(POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_OPEN)), 0};
454 > static uint32 serial_prime_in_tvect[2] = {tswap32(POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_PRIME_IN)), 0};
455 > static uint32 serial_prime_out_tvect[2] = {tswap32(POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_PRIME_OUT)), 0};
456 > static uint32 serial_control_tvect[2] = {tswap32(POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_CONTROL)), 0};
457 > static uint32 serial_status_tvect[2] = {tswap32(POWERPC_NATIVE_OP_FUNC(NATIVE_SERIAL_STATUS)), 0};
458 > static uint32 serial_close_tvect[2] = {tswap32(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};
# Line 464 | Line 474 | static const uint32 ain_driver[] = {   //
474          0x00000000, 0x00000000,
475          0xaafe0700, 0x00000000,
476          0x00000000, 0x00179822,
477 < #ifdef __linux__
477 > #ifdef SERIAL_TRAMPOLINES
478          0x00010004, (uint32)serial_nothing_tvect,
479   #else
480          0x00010004, (uint32)SerialNothing,
# Line 472 | Line 482 | static const uint32 ain_driver[] = {   //
482          0x00000000, 0x00000000,
483          0xaafe0700, 0x00000000,
484          0x00000000, 0x00179822,
485 < #ifdef __linux__
485 > #ifdef SERIAL_TRAMPOLINES
486          0x00010004, (uint32)serial_prime_in_tvect,
487   #else
488          0x00010004, (uint32)SerialPrimeIn,
# Line 480 | Line 490 | static const uint32 ain_driver[] = {   //
490          0x00000000, 0x00000000,
491          0xaafe0700, 0x00000000,
492          0x00000000, 0x00179822,
493 < #ifdef __linux__
493 > #ifdef SERIAL_TRAMPOLINES
494          0x00010004, (uint32)serial_control_tvect,
495   #else
496          0x00010004, (uint32)SerialControl,
# Line 488 | Line 498 | static const uint32 ain_driver[] = {   //
498          0x00000000, 0x00000000,
499          0xaafe0700, 0x00000000,
500          0x00000000, 0x00179822,
501 < #ifdef __linux__
501 > #ifdef SERIAL_TRAMPOLINES
502          0x00010004, (uint32)serial_status_tvect,
503   #else
504          0x00010004, (uint32)SerialStatus,
# Line 496 | Line 506 | static const uint32 ain_driver[] = {   //
506          0x00000000, 0x00000000,
507          0xaafe0700, 0x00000000,
508          0x00000000, 0x00179822,
509 < #ifdef __linux__
509 > #ifdef SERIAL_TRAMPOLINES
510          0x00010004, (uint32)serial_nothing_tvect,
511   #else
512          0x00010004, (uint32)SerialNothing,
# Line 511 | Line 521 | static const uint32 aout_driver[] = {  //
521          0x00000000, 0x00000000,
522          0xaafe0700, 0x00000000,
523          0x00000000, 0x00179822,
524 < #ifdef __linux__
524 > #ifdef SERIAL_TRAMPOLINES
525          0x00010004, (uint32)serial_open_tvect,
526   #else
527          0x00010004, (uint32)SerialOpen,
# Line 519 | Line 529 | static const uint32 aout_driver[] = {  //
529          0x00000000, 0x00000000,
530          0xaafe0700, 0x00000000,
531          0x00000000, 0x00179822,
532 < #ifdef __linux__
532 > #ifdef SERIAL_TRAMPOLINES
533          0x00010004, (uint32)serial_prime_out_tvect,
534   #else
535          0x00010004, (uint32)SerialPrimeOut,
# Line 527 | Line 537 | static const uint32 aout_driver[] = {  //
537          0x00000000, 0x00000000,
538          0xaafe0700, 0x00000000,
539          0x00000000, 0x00179822,
540 < #ifdef __linux__
540 > #ifdef SERIAL_TRAMPOLINES
541          0x00010004, (uint32)serial_control_tvect,
542   #else
543          0x00010004, (uint32)SerialControl,
# Line 535 | Line 545 | static const uint32 aout_driver[] = {  //
545          0x00000000, 0x00000000,
546          0xaafe0700, 0x00000000,
547          0x00000000, 0x00179822,
548 < #ifdef __linux__
548 > #ifdef SERIAL_TRAMPOLINES
549          0x00010004, (uint32)serial_status_tvect,
550   #else
551          0x00010004, (uint32)SerialStatus,
# Line 543 | Line 553 | static const uint32 aout_driver[] = {  //
553          0x00000000, 0x00000000,
554          0xaafe0700, 0x00000000,
555          0x00000000, 0x00179822,
556 < #ifdef __linux__
556 > #ifdef SERIAL_TRAMPOLINES
557          0x00010004, (uint32)serial_close_tvect,
558   #else
559          0x00010004, (uint32)SerialClose,
# Line 558 | Line 568 | static const uint32 bin_driver[] = {   //
568          0x00000000, 0x00000000,
569          0xaafe0700, 0x00000000,
570          0x00000000, 0x00179822,
571 < #ifdef __linux__
571 > #ifdef SERIAL_TRAMPOLINES
572          0x00010004, (uint32)serial_nothing_tvect,
573   #else
574          0x00010004, (uint32)SerialNothing,
# Line 566 | Line 576 | static const uint32 bin_driver[] = {   //
576          0x00000000, 0x00000000,
577          0xaafe0700, 0x00000000,
578          0x00000000, 0x00179822,
579 < #ifdef __linux__
579 > #ifdef SERIAL_TRAMPOLINES
580          0x00010004, (uint32)serial_prime_in_tvect,
581   #else
582          0x00010004, (uint32)SerialPrimeIn,
# Line 574 | Line 584 | static const uint32 bin_driver[] = {   //
584          0x00000000, 0x00000000,
585          0xaafe0700, 0x00000000,
586          0x00000000, 0x00179822,
587 < #ifdef __linux__
587 > #ifdef SERIAL_TRAMPOLINES
588          0x00010004, (uint32)serial_control_tvect,
589   #else
590          0x00010004, (uint32)SerialControl,
# Line 582 | Line 592 | static const uint32 bin_driver[] = {   //
592          0x00000000, 0x00000000,
593          0xaafe0700, 0x00000000,
594          0x00000000, 0x00179822,
595 < #ifdef __linux__
595 > #ifdef SERIAL_TRAMPOLINES
596          0x00010004, (uint32)serial_status_tvect,
597   #else
598          0x00010004, (uint32)SerialStatus,
# Line 590 | Line 600 | static const uint32 bin_driver[] = {   //
600          0x00000000, 0x00000000,
601          0xaafe0700, 0x00000000,
602          0x00000000, 0x00179822,
603 < #ifdef __linux__
603 > #ifdef SERIAL_TRAMPOLINES
604          0x00010004, (uint32)serial_nothing_tvect,
605   #else
606          0x00010004, (uint32)SerialNothing,
# Line 605 | Line 615 | static const uint32 bout_driver[] = {  //
615          0x00000000, 0x00000000,
616          0xaafe0700, 0x00000000,
617          0x00000000, 0x00179822,
618 < #ifdef __linux__
618 > #ifdef SERIAL_TRAMPOLINES
619          0x00010004, (uint32)serial_open_tvect,
620   #else
621          0x00010004, (uint32)SerialOpen,
# Line 613 | Line 623 | static const uint32 bout_driver[] = {  //
623          0x00000000, 0x00000000,
624          0xaafe0700, 0x00000000,
625          0x00000000, 0x00179822,
626 < #ifdef __linux__
626 > #ifdef SERIAL_TRAMPOLINES
627          0x00010004, (uint32)serial_prime_out_tvect,
628   #else
629          0x00010004, (uint32)SerialPrimeOut,
# Line 621 | Line 631 | static const uint32 bout_driver[] = {  //
631          0x00000000, 0x00000000,
632          0xaafe0700, 0x00000000,
633          0x00000000, 0x00179822,
634 < #ifdef __linux__
634 > #ifdef SERIAL_TRAMPOLINES
635          0x00010004, (uint32)serial_control_tvect,
636   #else
637          0x00010004, (uint32)SerialControl,
# Line 629 | Line 639 | static const uint32 bout_driver[] = {  //
639          0x00000000, 0x00000000,
640          0xaafe0700, 0x00000000,
641          0x00000000, 0x00179822,
642 < #ifdef __linux__
642 > #ifdef SERIAL_TRAMPOLINES
643          0x00010004, (uint32)serial_status_tvect,
644   #else
645          0x00010004, (uint32)SerialStatus,
# Line 637 | Line 647 | static const uint32 bout_driver[] = {  //
647          0x00000000, 0x00000000,
648          0xaafe0700, 0x00000000,
649          0x00000000, 0x00179822,
650 < #ifdef __linux__
650 > #ifdef SERIAL_TRAMPOLINES
651          0x00010004, (uint32)serial_close_tvect,
652   #else
653          0x00010004, (uint32)SerialClose,
# Line 669 | Line 679 | static const uint8 adbop_patch[] = {   //
679  
680  
681   /*
682 + *  Copy PowerPC code to ROM image and reverse bytes if necessary
683 + */
684 +
685 + static inline void memcpy_powerpc_code(void *dst, const void *src, size_t len)
686 + {
687 + #ifdef WORDS_BIGENDIAN
688 +        (void)memcpy(dst, src, len);
689 + #else
690 +        uint32 *d = (uint32 *)dst;
691 +        uint32 *s = (uint32 *)src;
692 +        for (int i = 0; i < len/4; i++)
693 +                d[i] = htonl(s[i]);
694 + #endif
695 + }
696 +
697 +
698 + /*
699   *  Install ROM patches (RAMBase and KernelDataAddr must be set)
700   */
701  
# Line 691 | Line 718 | bool PatchROM(void)
718                  ROMType = ROMTYPE_ZANZIBAR;
719          else if (!memcmp((void *)(ROM_BASE + 0x30d064), "Boot Gazelle", 12))
720                  ROMType = ROMTYPE_GAZELLE;
721 +        else if (!memcmp((void *)(ROM_BASE + 0x30d064), "Boot Gossamer", 13))
722 +                ROMType = ROMTYPE_GOSSAMER;
723          else if (!memcmp((void *)(ROM_BASE + 0x30d064), "NewWorld", 8))
724                  ROMType = ROMTYPE_NEWWORLD;
725          else
# Line 740 | Line 769 | static bool patch_nanokernel_boot(void)
769          lp[0xfd8 >> 2] = htonl(ROM_BASE + 0x2a);                // 68k reset vector
770  
771          // Skip SR/BAT/SDR init
772 <        if (ROMType == ROMTYPE_GAZELLE || ROMType == ROMTYPE_NEWWORLD) {
772 >        if (ROMType == ROMTYPE_GAZELLE || ROMType == ROMTYPE_GOSSAMER || ROMType == ROMTYPE_NEWWORLD) {
773                  lp = (uint32 *)(ROM_BASE + 0x310000);
774                  *lp++ = htonl(POWERPC_NOP);
775                  *lp = htonl(0x38000000);
776          }
777 <        static const uint32 sr_init_loc[] = {0x3101b0, 0x3101b0, 0x3101b0, 0x3101ec, 0x310200};
777 >        static const uint32 sr_init_loc[] = {0x3101b0, 0x3101b0, 0x3101b0, 0x3101ec, 0x3101fc, 0x310200};
778          lp = (uint32 *)(ROM_BASE + 0x310008);
779          *lp = htonl(0x48000000 | (sr_init_loc[ROMType] - 8) & 0xffff);  // b            ROM_BASE+0x3101b0
780          lp = (uint32 *)(ROM_BASE + sr_init_loc[ROMType]);
# Line 755 | Line 784 | static bool patch_nanokernel_boot(void)
784          *lp = htonl(0x3de00010);                // lis  r15,0x0010      (size of kernel memory)
785  
786          // Don't read PVR
787 <        static const uint32 pvr_loc[] = {0x3103b0, 0x3103b4, 0x3103b4, 0x310400, 0x310438};
787 >        static const uint32 pvr_loc[] = {0x3103b0, 0x3103b4, 0x3103b4, 0x310400, 0x310430, 0x310438};
788          lp = (uint32 *)(ROM_BASE + pvr_loc[ROMType]);
789          *lp = htonl(0x81800000 + XLM_PVR);      // lwz  r12,(theoretical PVR)
790  
# Line 903 | Line 932 | static bool patch_nanokernel_boot(void)
932          *lp = htonl(POWERPC_NOP);
933  
934          // Don't read PVR
935 <        static const uint32 pvr_ofs[] = {0x138, 0x138, 0x138, 0x140, 0x148};
935 >        static const uint32 pvr_ofs[] = {0x138, 0x138, 0x138, 0x140, 0x148, 0x148};
936          lp = (uint32 *)(ROM_BASE + loc + pvr_ofs[ROMType]);
937          *lp = htonl(0x82e00000 + XLM_PVR);              // lwz  r23,(theoretical PVR)
938          lp = (uint32 *)(ROM_BASE + loc + 0x170);
939 <        if (ntohl(*lp) == 0x7eff42a6)   // NewWorld ROM
939 >        if (ntohl(*lp) == 0x7eff42a6)   // NewWorld or Gossamer ROM
940                  *lp = htonl(0x82e00000 + XLM_PVR);      // lwz  r23,(theoretical PVR)
941          lp = (uint32 *)(ROM_BASE + 0x313134);
942          if (ntohl(*lp) == 0x7e5f42a6)
# Line 920 | Line 949 | static bool patch_nanokernel_boot(void)
949                  *lp = htonl(0x81200000 + XLM_PVR);      // lzw  r9,(theoritical PVR)
950  
951          // Don't read SDR1
952 <        static const uint32 sdr1_ofs[] = {0x174, 0x174, 0x174, 0x17c, 0x19c};
952 >        static const uint32 sdr1_ofs[] = {0x174, 0x174, 0x174, 0x17c, 0x19c, 0x19c};
953          lp = (uint32 *)(ROM_BASE + loc + sdr1_ofs[ROMType]);
954          *lp++ = htonl(0x3d00dead);              // lis  r8,0xdead               (pointer to page table)
955          *lp++ = htonl(0x3ec0001f);              // lis  r22,0x001f      (size of page table)
956          *lp = htonl(POWERPC_NOP);
957  
958          // Don't clear page table
959 <        static const uint32 pgtb_ofs[] = {0x198, 0x198, 0x198, 0x1a0, 0x1c4};
959 >        static const uint32 pgtb_ofs[] = {0x198, 0x198, 0x198, 0x1a0, 0x1c0, 0x1c4};
960          lp = (uint32 *)(ROM_BASE + loc + pgtb_ofs[ROMType]);
961          *lp = htonl(POWERPC_NOP);
962  
963          // Don't invalidate TLB
964 <        static const uint32 tlb_ofs[] = {0x1a0, 0x1a0, 0x1a0, 0x1a8, 0x1cc};
964 >        static const uint32 tlb_ofs[] = {0x1a0, 0x1a0, 0x1a0, 0x1a8, 0x1c8, 0x1cc};
965          lp = (uint32 *)(ROM_BASE + loc + tlb_ofs[ROMType]);
966          *lp = htonl(POWERPC_NOP);
967  
968          // Don't create RAM descriptor table
969 <        static const uint32 desc_ofs[] = {0x350, 0x350, 0x350, 0x358, 0x37c};
969 >        static const uint32 desc_ofs[] = {0x350, 0x350, 0x350, 0x358, 0x378, 0x37c};
970          lp = (uint32 *)(ROM_BASE + loc + desc_ofs[ROMType]);
971          *lp = htonl(POWERPC_NOP);
972  
973          // Don't load SRs and BATs
974 <        static const uint32 sr_ofs[] = {0x3d8, 0x3d8, 0x3d8, 0x3e0, 0x404};
974 >        static const uint32 sr_ofs[] = {0x3d8, 0x3d8, 0x3d8, 0x3e0, 0x400, 0x404};
975          lp = (uint32 *)(ROM_BASE + loc + sr_ofs[ROMType]);
976          *lp = htonl(POWERPC_NOP);
977  
978          // Don't mess with SRs
979 <        static const uint32 sr2_ofs[] = {0x312118, 0x312118, 0x312118, 0x312118, 0x3121b4};
979 >        static const uint32 sr2_ofs[] = {0x312118, 0x312118, 0x312118, 0x312118, 0x312118, 0x3121b4};
980          lp = (uint32 *)(ROM_BASE + sr2_ofs[ROMType]);
981          *lp = htonl(POWERPC_BLR);
982  
983          // Don't check performance monitor
984 <        static const uint32 pm_ofs[] = {0x313148, 0x313148, 0x313148, 0x313148, 0x313218};
984 >        static const uint32 pm_ofs[] = {0x313148, 0x313148, 0x313148, 0x313148, 0x313158, 0x313218};
985          lp = (uint32 *)(ROM_BASE + pm_ofs[ROMType]);
986          while (ntohl(*lp) != 0x7e58eba6) lp++;
987          *lp++ = htonl(POWERPC_NOP);
# Line 988 | Line 1017 | static bool patch_nanokernel_boot(void)
1017          *lp++ = htonl(POWERPC_NOP);
1018  
1019          // Jump to 68k emulator
1020 <        static const uint32 jump68k_ofs[] = {0x40c, 0x40c, 0x40c, 0x414, 0x438};
1020 >        static const uint32 jump68k_ofs[] = {0x40c, 0x40c, 0x40c, 0x414, 0x434, 0x438};
1021          lp = (uint32 *)(ROM_BASE + loc + jump68k_ofs[ROMType]);
1022          *lp++ = htonl(0x80610634);              // lwz  r3,0x0634(r1)   (pointer to Emulator Data)
1023          *lp++ = htonl(0x8081119c);              // lwz  r4,0x119c(r1)   (pointer to opcode table)
# Line 1009 | Line 1038 | static bool patch_68k_emul(void)
1038          uint32 base;
1039  
1040          // Overwrite twi instructions
1041 <        static const uint32 twi_loc[] = {0x36e680, 0x36e6c0, 0x36e6c0, 0x36e6c0, 0x36e740};
1041 >        static const uint32 twi_loc[] = {0x36e680, 0x36e6c0, 0x36e6c0, 0x36e6c0, 0x36e740, 0x36e740};
1042          base = twi_loc[ROMType];
1043          lp = (uint32 *)(ROM_BASE + base);
1044          *lp++ = htonl(0x48000000 + 0x36f900 - base);            // b 0x36f900 (Emulator start)
# Line 1030 | Line 1059 | static bool patch_68k_emul(void)
1059          *lp = htonl(POWERPC_ILLEGAL);
1060  
1061   #if EMULATED_PPC
1062 <        // Install EMUL_RETURN, EXEC_RETURN and EMUL_OP opcodes
1062 >        // Install EMUL_RETURN, EXEC_RETURN, EXEC_NATIVE and EMUL_OP opcodes
1063          lp = (uint32 *)(ROM_BASE + 0x380000 + (M68K_EMUL_RETURN << 3));
1064          *lp++ = htonl(POWERPC_EMUL_OP);
1065          *lp++ = htonl(0x4bf66e80);                                                      // b    0x366084
1066          *lp++ = htonl(POWERPC_EMUL_OP | 1);
1067          *lp++ = htonl(0x4bf66e78);                                                      // b    0x366084
1068 +        *lp++ = htonl(POWERPC_EMUL_OP | 2);
1069 +        *lp++ = htonl(0x4bf66e70);                                                      // b    0x366084
1070          for (int i=0; i<OP_MAX; i++) {
1071 <                *lp++ = htonl(POWERPC_EMUL_OP | (i + 2));
1072 <                *lp++ = htonl(0x4bf66e70 - i*8);                        // b    0x366084
1071 >                *lp++ = htonl(POWERPC_EMUL_OP | (i + 3));
1072 >                *lp++ = htonl(0x4bf66e68 - i*8);                                // b    0x366084
1073          }
1074   #else
1075          // Install EMUL_RETURN, EXEC_RETURN and EMUL_OP opcodes
# Line 1047 | Line 1078 | static bool patch_68k_emul(void)
1078          *lp++ = htonl(0x4bf705fc);                                                      // b    0x36f800
1079          *lp++ = htonl(0x80000000 + XLM_EXEC_RETURN_PROC);       // lwz  r0,XLM_EXEC_RETURN_PROC
1080          *lp++ = htonl(0x4bf705f4);                                                      // b    0x36f800
1081 +        *lp++ = htonl(0x00dead00);                                                      // Let SheepShaver crash, since
1082 +        *lp++ = htonl(0x00beef00);                                                      // no native opcode is available
1083          for (int i=0; i<OP_MAX; i++) {
1084                  *lp++ = htonl(0x38a00000 + i);                          // li   r5,OP_*
1085 <                *lp++ = htonl(0x4bf705f4 - i*8);                        // b    0x36f808
1085 >                *lp++ = htonl(0x4bf705ec - i*8);                        // b    0x36f808
1086          }
1087  
1088          // Extra routines for EMUL_RETURN/EXEC_RETURN/EMUL_OP
# Line 1065 | Line 1098 | static bool patch_68k_emul(void)
1098          // Extra routine for 68k emulator start
1099          lp = (uint32 *)(ROM_BASE + 0x36f900);
1100          *lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1101 + #if EMULATED_PPC
1102 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
1103 + #else
1104          *lp++ = htonl(0x80200000 + XLM_IRQ_NEST);       // lwz          r1,XLM_IRQ_NEST
1105          *lp++ = htonl(0x38210001);                                      // addi         r1,r1,1
1106          *lp++ = htonl(0x90200000 + XLM_IRQ_NEST);       // stw          r1,XLM_IRQ_NEST
1107 + #endif
1108          *lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz              r1,XLM_KERNEL_DATA
1109          *lp++ = htonl(0x90c10018);                                      // stw          r6,0x18(r1)
1110          *lp++ = htonl(0x7cc902a6);                                      // mfctr        r6
# Line 1095 | Line 1132 | static bool patch_68k_emul(void)
1132          // Extra routine for Mixed Mode
1133          lp = (uint32 *)(ROM_BASE + 0x36fa00);
1134          *lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1135 + #if EMULATED_PPC
1136 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
1137 + #else
1138          *lp++ = htonl(0x80200000 + XLM_IRQ_NEST);       // lwz          r1,XLM_IRQ_NEST
1139          *lp++ = htonl(0x38210001);                                      // addi         r1,r1,1
1140          *lp++ = htonl(0x90200000 + XLM_IRQ_NEST);       // stw          r1,XLM_IRQ_NEST
1141 + #endif
1142          *lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz              r1,XLM_KERNEL_DATA
1143          *lp++ = htonl(0x90c10018);                                      // stw          r6,0x18(r1)
1144          *lp++ = htonl(0x7cc902a6);                                      // mfctr        r6
# Line 1125 | Line 1166 | static bool patch_68k_emul(void)
1166          // Extra routine for Reset/FC1E opcode
1167          lp = (uint32 *)(ROM_BASE + 0x36fb00);
1168          *lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1169 + #if EMULATED_PPC
1170 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
1171 + #else
1172          *lp++ = htonl(0x80200000 + XLM_IRQ_NEST);       // lwz          r1,XLM_IRQ_NEST
1173          *lp++ = htonl(0x38210001);                                      // addi         r1,r1,1
1174          *lp++ = htonl(0x90200000 + XLM_IRQ_NEST);       // stw          r1,XLM_IRQ_NEST
1175 + #endif
1176          *lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz              r1,XLM_KERNEL_DATA
1177          *lp++ = htonl(0x90c10018);                                      // stw          r6,0x18(r1)
1178          *lp++ = htonl(0x7cc902a6);                                      // mfctr        r6
# Line 1155 | Line 1200 | static bool patch_68k_emul(void)
1200          // Extra routine for FE0A opcode (QuickDraw 3D needs this)
1201          lp = (uint32 *)(ROM_BASE + 0x36fc00);
1202          *lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1203 + #if EMULATED_PPC
1204 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
1205 + #else
1206          *lp++ = htonl(0x80200000 + XLM_IRQ_NEST);       // lwz          r1,XLM_IRQ_NEST
1207          *lp++ = htonl(0x38210001);                                      // addi         r1,r1,1
1208          *lp++ = htonl(0x90200000 + XLM_IRQ_NEST);       // stw          r1,XLM_IRQ_NEST
1209 + #endif
1210          *lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz              r1,XLM_KERNEL_DATA
1211          *lp++ = htonl(0x90c10018);                                      // stw          r6,0x18(r1)
1212          *lp++ = htonl(0x7cc902a6);                                      // mfctr        r6
# Line 1292 | Line 1341 | static bool patch_nanokernel(void)
1341          *lp = htonl(POWERPC_BCTR);
1342  
1343          lp = (uint32 *)(ROM_BASE + 0x318000);
1344 + #if EMULATED_PPC
1345 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_ENABLE_INTERRUPT);
1346 +        *lp = htonl(0x48000000 + ((xlp - 0x8004) & 0x03fffffc));        // b            ROM_BASE+0x312c2c
1347 + #else
1348          *lp++ = htonl(0x81400000 + XLM_IRQ_NEST);       // lwz  r10,XLM_IRQ_NEST
1349          *lp++ = htonl(0x394affff);                                      // subi r10,r10,1
1350          *lp++ = htonl(0x91400000 + XLM_IRQ_NEST);       // stw  r10,XLM_IRQ_NEST
1351          *lp = htonl(0x48000000 + ((xlp - 0x800c) & 0x03fffffc));        // b            ROM_BASE+0x312c2c
1352 + #endif
1353 +
1354   /*
1355          // Disable FE0A/FE06 opcodes
1356          lp = (uint32 *)(ROM_BASE + 0x3144ac);
# Line 1365 | Line 1420 | static bool patch_68k(void)
1420                  lp[0x28 >> 2] = htonl(0x00000861);
1421                  lp[0x58 >> 2] = htonl(0x30200000);
1422                  lp[0x60 >> 2] = htonl(0x0000003d);
1423 +        } else if (ROMType == ROMTYPE_GOSSAMER) {
1424 +                base = 0x12d20;
1425 +                lp = (uint32 *)(ROM_BASE + base - 0x14);
1426 +                lp[0x00 >> 2] = htonl(ADDR_MAP_PATCH_SPACE - (base - 0x14));
1427 +                lp[0x10 >> 2] = htonl(0xcc003d11);              // Make it like the PowerMac 9500 UniversalInfo
1428 +                lp[0x14 >> 2] = htonl(0x3fff0401);
1429 +                lp[0x18 >> 2] = htonl(0x0300001c);
1430 +                lp[0x1c >> 2] = htonl(0x000108c4);
1431 +                lp[0x24 >> 2] = htonl(0xc301bf26);
1432 +                lp[0x28 >> 2] = htonl(0x00000861);
1433 +                lp[0x58 >> 2] = htonl(0x30410000);
1434 +                lp[0x60 >> 2] = htonl(0x0000003d);
1435          }
1436  
1437          // Construct AddrMap for NewWorld ROM
1438 <        if (ROMType == ROMTYPE_NEWWORLD || ROMType == ROMTYPE_ZANZIBAR) {
1438 >        if (ROMType == ROMTYPE_NEWWORLD || ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_GOSSAMER) {
1439                  lp = (uint32 *)(ROM_BASE + ADDR_MAP_PATCH_SPACE);
1440                  memset(lp - 10, 0, 0x128);
1441                  lp[-10] = htonl(0x0300001c);
# Line 1494 | Line 1561 | static bool patch_68k(void)
1561                  *wp++ = htons(M68K_EMUL_OP_XPRAM2);
1562                  *wp = htons(0x4ed3);                    // jmp  (a3)
1563  
1564 <                static const uint32 nvram3_loc[] = {0x582f0, 0xa0a0, 0x7e50, 0xa1d0, 0};
1565 <                wp = (uint16 *)(ROM_BASE + nvram3_loc[ROMType]);
1564 >                static const uint8 nvram3_dat[] = {0x4e, 0xd3, 0x06, 0x41, 0x13, 0x00};
1565 >                if ((base = find_rom_data(0x7000, 0xb000, nvram3_dat, sizeof(nvram3_dat))) == 0) return false;
1566 >                D(bug("nvram3 %08lx\n", base));
1567 >                wp = (uint16 *)(ROM_BASE + base + 2);
1568 >                *wp++ = htons(M68K_EMUL_OP_XPRAM3);
1569 >                *wp = htons(0x4ed3);                    // jmp  (a3)
1570 >
1571 >                static const uint32 nvram4_loc[] = {0x582f0, 0xa0a0, 0x7e50, 0xa1d0, 0x538d0, 0};
1572 >                wp = (uint16 *)(ROM_BASE + nvram4_loc[ROMType]);
1573                  *wp++ = htons(0x202f);                  // move.l       4(sp),d0
1574                  *wp++ = htons(0x0004);
1575                  *wp++ = htons(M68K_EMUL_OP_NVRAM1);
# Line 1508 | Line 1582 | static bool patch_68k(void)
1582                          *wp = htons(0x0004);
1583                  }
1584  
1585 <                static const uint32 nvram4_loc[] = {0x58460, 0xa0f0, 0x7f40, 0xa220, 0};
1586 <                wp = (uint16 *)(ROM_BASE + nvram4_loc[ROMType]);
1585 >                static const uint32 nvram5_loc[] = {0x58460, 0xa0f0, 0x7f40, 0xa220, 0x53a20, 0};
1586 >                wp = (uint16 *)(ROM_BASE + nvram5_loc[ROMType]);
1587                  if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_GAZELLE) {
1588                          *wp++ = htons(0x202f);                  // move.l       4(sp),d0
1589                          *wp++ = htons(0x0004);
# Line 1686 | Line 1760 | static bool patch_68k(void)
1760                  if ((base = find_rom_data(0x13000, 0x20000, gc_mask2_dat, sizeof(gc_mask2_dat))) == 0) return false;
1761                  D(bug("gc_mask2 %08lx\n", base));
1762                  wp = (uint16 *)(ROM_BASE + base);
1763 +                if (ROMType == ROMTYPE_GOSSAMER)
1764 +                        *wp++ = htons(M68K_NOP);
1765                  for (int i=0; i<5; i++) {
1766                          *wp++ = htons(M68K_NOP);
1767                          *wp++ = htons(M68K_NOP);
# Line 1693 | Line 1769 | static bool patch_68k(void)
1769                          *wp++ = htons(M68K_NOP);
1770                          wp += 2;
1771                  }
1772 <                if (ROMType == ROMTYPE_ZANZIBAR) {
1772 >                if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_GOSSAMER) {
1773                          for (int i=0; i<6; i++) {
1774                                  *wp++ = htons(M68K_NOP);
1775                                  *wp++ = htons(M68K_NOP);
# Line 1766 | Line 1842 | static bool patch_68k(void)
1842          *wp = htons(M68K_RTS);
1843  
1844          // Don't install Time Manager task for 60Hz interrupt (Enable60HzInts, via 0x2b8)
1845 <        if (ROMType == ROMTYPE_NEWWORLD) {
1845 >        if (ROMType == ROMTYPE_NEWWORLD || ROMType == ROMTYPE_GOSSAMER) {
1846                  static const uint8 tm_task_dat[] = {0x30, 0x3c, 0x4e, 0x2b, 0xa9, 0xc9};
1847 <                if ((base = find_rom_data(0x2e0, 0x320, tm_task_dat, sizeof(tm_task_dat))) == 0) return false;
1847 >                if ((base = find_rom_data(0x2a0, 0x320, tm_task_dat, sizeof(tm_task_dat))) == 0) return false;
1848                  D(bug("tm_task %08lx\n", base));
1849                  wp = (uint16 *)(ROM_BASE + base + 28);
1850                  *wp++ = htons(M68K_NOP);
# Line 1788 | Line 1864 | static bool patch_68k(void)
1864          }
1865  
1866          // Don't read PVR from 0x5fffef80 in DriverServicesLib (via 0x316)
1867 <        if (ROMType != ROMTYPE_NEWWORLD) {
1867 >        if (ROMType != ROMTYPE_NEWWORLD && ROMType != ROMTYPE_GOSSAMER) {
1868                  uint32 dsl_offset = find_rom_resource(FOURCC('n','l','i','b'), -16401);
1869                  if (ROMType == ROMTYPE_ZANZIBAR) {
1870                          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 1874 | Line 1950 | static bool patch_68k(void)
1950                          D(bug("scsi_var2 %08lx\n", base));
1951                          wp = (uint16 *)(ROM_BASE + base);
1952                          *wp++ = htons(0x7000);  // moveq #0,d0
1953 <                        *wp = htons(M68K_RTS);  // bra
1953 >                        *wp = htons(M68K_RTS);
1954 >                }
1955 >        }
1956 >        else if (ROMType == ROMTYPE_GOSSAMER) {
1957 >                static const uint8 scsi_var_dat[] = {0x70, 0x01, 0xa0, 0x89, 0x4a, 0x6e, 0xfe, 0xac, 0x4f, 0xef, 0x00, 0x10, 0x66, 0x00};
1958 >                if ((base = find_rom_data(0x1d700, 0x1d800, scsi_var_dat, sizeof(scsi_var_dat))) != 0) {
1959 >                        D(bug("scsi_var %08lx\n", base));
1960 >                        wp = (uint16 *)(ROM_BASE + base + 12);
1961 >                        *wp = htons(0x6000);    // bra
1962 >                }
1963 >
1964 >                static const uint8 scsi_var2_dat[] = {0x4e, 0x56, 0xfc, 0x5a, 0x48, 0xe7, 0x1f, 0x38};
1965 >                if ((base = find_rom_data(0x1d900, 0x1da00, scsi_var2_dat, sizeof(scsi_var2_dat))) != 0) {
1966 >                        D(bug("scsi_var2 %08lx\n", base));
1967 >                        wp = (uint16 *)(ROM_BASE + base);
1968 >                        *wp++ = htons(0x7000);  // moveq #0,d0
1969 >                        *wp = htons(M68K_RTS);
1970                  }
1971          }
1972   #endif
# Line 1930 | Line 2022 | static bool patch_68k(void)
2022          memcpy((void *)(ROM_BASE + sony_offset + 0x200), cdrom_driver, sizeof(cdrom_driver));
2023  
2024          // Install serial drivers
2025 <        memcpy((void *)(ROM_BASE + sony_offset + 0x300), ain_driver, sizeof(ain_driver));
2026 <        memcpy((void *)(ROM_BASE + sony_offset + 0x400), aout_driver, sizeof(aout_driver));
2027 <        memcpy((void *)(ROM_BASE + sony_offset + 0x500), bin_driver, sizeof(bin_driver));
2028 <        memcpy((void *)(ROM_BASE + sony_offset + 0x600), bout_driver, sizeof(bout_driver));
2025 >        memcpy_powerpc_code((void *)(ROM_BASE + sony_offset + 0x300), ain_driver, sizeof(ain_driver));
2026 >        memcpy_powerpc_code((void *)(ROM_BASE + sony_offset + 0x400), aout_driver, sizeof(aout_driver));
2027 >        memcpy_powerpc_code((void *)(ROM_BASE + sony_offset + 0x500), bin_driver, sizeof(bin_driver));
2028 >        memcpy_powerpc_code((void *)(ROM_BASE + sony_offset + 0x600), bout_driver, sizeof(bout_driver));
2029  
2030          // Copy icons to ROM
2031          SonyDiskIconAddr = ROM_BASE + sony_offset + 0x800;
# Line 1954 | Line 2046 | static bool patch_68k(void)
2046          *wp = htons(M68K_RTS);
2047  
2048          // Don't install serial drivers from ROM
2049 <        if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_NEWWORLD) {
2049 >        if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_NEWWORLD || ROMType == ROMTYPE_GOSSAMER) {
2050                  wp = (uint16 *)(ROM_BASE + find_rom_resource(FOURCC('S','E','R','D'), 0));
2051                  *wp = htons(M68K_RTS);
2052          } else {
# Line 2013 | Line 2105 | static bool patch_68k(void)
2105          wp = (uint16 *)(ROM_BASE + base);
2106          if (ROMType == ROMTYPE_ZANZIBAR)
2107                  *wp = htons(M68K_RTS);
2108 <        else
2108 >        else if (ntohs(wp[-4]) == 0x61ff)
2109 >                *wp = htons(M68K_RTS);
2110 >        else if (ntohs(wp[-2]) == 0x6700)
2111                  wp[-2] = htons(0x6000); // bra
2112  
2113          // Patch PowerOff()
# Line 2135 | Line 2229 | void InstallDrivers(void)
2229          M68kRegisters r;
2230          uint8 pb[SIZEOF_IOParam];
2231  
2232 +        // Install floppy driver
2233 +        if (ROMType == ROMTYPE_NEWWORLD) {
2234 +
2235 +                // Force installation of floppy driver with NewWorld ROMs
2236 +                r.a[0] = ROM_BASE + sony_offset;
2237 +                r.d[0] = (uint32)SonyRefNum;
2238 +                Execute68kTrap(0xa43d, &r);             // DrvrInstallRsrvMem()
2239 +                r.a[0] = ReadMacInt32(ReadMacInt32(0x11c) + ~SonyRefNum * 4);   // Get driver handle from Unit Table
2240 +                Execute68kTrap(0xa029, &r);             // HLock()
2241 +                uint32 dce = ReadMacInt32(r.a[0]);
2242 +                WriteMacInt32(dce + dCtlDriver, ROM_BASE + sony_offset);
2243 +                WriteMacInt16(dce + dCtlFlags, SonyDriverFlags);
2244 +        }
2245 +
2246 + #if DISABLE_SCSI && 0
2247 +        // Fake SCSIGlobals
2248 +        static const uint8 fake_scsi_globals[32] = {0,};
2249 +        WriteMacInt32(0xc0c, (uint32)fake_scsi_globals);
2250 + #endif
2251 +
2252          // Open .Sony driver
2253          WriteMacInt8((uint32)pb + ioPermssn, 0);
2254          WriteMacInt32((uint32)pb + ioNamePtr, (uint32)"\005.Sony");

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