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root/cebix/SheepShaver/src/rom_patches.cpp
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Comparing SheepShaver/src/rom_patches.cpp (file contents):
Revision 1.5 by gbeauche, 2003-05-21T18:57:17Z vs.
Revision 1.8 by gbeauche, 2003-09-28T21:27:33Z

# 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] = {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};
# 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 1030 | Line 1040 | static bool patch_68k_emul(void)
1040          *lp = htonl(POWERPC_ILLEGAL);
1041  
1042   #if EMULATED_PPC
1043 <        // Install EMUL_RETURN, EXEC_RETURN and EMUL_OP opcodes
1043 >        // Install EMUL_RETURN, EXEC_RETURN, EXEC_NATIVE and EMUL_OP opcodes
1044          lp = (uint32 *)(ROM_BASE + 0x380000 + (M68K_EMUL_RETURN << 3));
1045          *lp++ = htonl(POWERPC_EMUL_OP);
1046          *lp++ = htonl(0x4bf66e80);                                                      // b    0x366084
1047          *lp++ = htonl(POWERPC_EMUL_OP | 1);
1048          *lp++ = htonl(0x4bf66e78);                                                      // b    0x366084
1049 +        *lp++ = htonl(POWERPC_EMUL_OP | 2);
1050 +        *lp++ = htonl(0x4bf66e70);                                                      // b    0x366084
1051          for (int i=0; i<OP_MAX; i++) {
1052 <                *lp++ = htonl(POWERPC_EMUL_OP | (i + 2));
1053 <                *lp++ = htonl(0x4bf66e70 - i*8);                        // b    0x366084
1052 >                *lp++ = htonl(POWERPC_EMUL_OP | (i + 3));
1053 >                *lp++ = htonl(0x4bf66e68 - i*8);                                // b    0x366084
1054          }
1055   #else
1056          // Install EMUL_RETURN, EXEC_RETURN and EMUL_OP opcodes
# Line 1047 | Line 1059 | static bool patch_68k_emul(void)
1059          *lp++ = htonl(0x4bf705fc);                                                      // b    0x36f800
1060          *lp++ = htonl(0x80000000 + XLM_EXEC_RETURN_PROC);       // lwz  r0,XLM_EXEC_RETURN_PROC
1061          *lp++ = htonl(0x4bf705f4);                                                      // b    0x36f800
1062 +        *lp++ = htonl(0x00dead00);                                                      // Let SheepShaver crash, since
1063 +        *lp++ = htonl(0x00beef00);                                                      // no native opcode is available
1064          for (int i=0; i<OP_MAX; i++) {
1065                  *lp++ = htonl(0x38a00000 + i);                          // li   r5,OP_*
1066 <                *lp++ = htonl(0x4bf705f4 - i*8);                        // b    0x36f808
1066 >                *lp++ = htonl(0x4bf705ec - i*8);                        // b    0x36f808
1067          }
1068  
1069          // Extra routines for EMUL_RETURN/EXEC_RETURN/EMUL_OP
# Line 1065 | Line 1079 | static bool patch_68k_emul(void)
1079          // Extra routine for 68k emulator start
1080          lp = (uint32 *)(ROM_BASE + 0x36f900);
1081          *lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1082 + #if EMULATED_PPC
1083 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
1084 + #else
1085          *lp++ = htonl(0x80200000 + XLM_IRQ_NEST);       // lwz          r1,XLM_IRQ_NEST
1086          *lp++ = htonl(0x38210001);                                      // addi         r1,r1,1
1087          *lp++ = htonl(0x90200000 + XLM_IRQ_NEST);       // stw          r1,XLM_IRQ_NEST
1088 + #endif
1089          *lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz              r1,XLM_KERNEL_DATA
1090          *lp++ = htonl(0x90c10018);                                      // stw          r6,0x18(r1)
1091          *lp++ = htonl(0x7cc902a6);                                      // mfctr        r6
# Line 1095 | Line 1113 | static bool patch_68k_emul(void)
1113          // Extra routine for Mixed Mode
1114          lp = (uint32 *)(ROM_BASE + 0x36fa00);
1115          *lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1116 + #if EMULATED_PPC
1117 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
1118 + #else
1119          *lp++ = htonl(0x80200000 + XLM_IRQ_NEST);       // lwz          r1,XLM_IRQ_NEST
1120          *lp++ = htonl(0x38210001);                                      // addi         r1,r1,1
1121          *lp++ = htonl(0x90200000 + XLM_IRQ_NEST);       // stw          r1,XLM_IRQ_NEST
1122 + #endif
1123          *lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz              r1,XLM_KERNEL_DATA
1124          *lp++ = htonl(0x90c10018);                                      // stw          r6,0x18(r1)
1125          *lp++ = htonl(0x7cc902a6);                                      // mfctr        r6
# Line 1125 | Line 1147 | static bool patch_68k_emul(void)
1147          // Extra routine for Reset/FC1E opcode
1148          lp = (uint32 *)(ROM_BASE + 0x36fb00);
1149          *lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1150 + #if EMULATED_PPC
1151 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
1152 + #else
1153          *lp++ = htonl(0x80200000 + XLM_IRQ_NEST);       // lwz          r1,XLM_IRQ_NEST
1154          *lp++ = htonl(0x38210001);                                      // addi         r1,r1,1
1155          *lp++ = htonl(0x90200000 + XLM_IRQ_NEST);       // stw          r1,XLM_IRQ_NEST
1156 + #endif
1157          *lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz              r1,XLM_KERNEL_DATA
1158          *lp++ = htonl(0x90c10018);                                      // stw          r6,0x18(r1)
1159          *lp++ = htonl(0x7cc902a6);                                      // mfctr        r6
# Line 1155 | Line 1181 | static bool patch_68k_emul(void)
1181          // Extra routine for FE0A opcode (QuickDraw 3D needs this)
1182          lp = (uint32 *)(ROM_BASE + 0x36fc00);
1183          *lp++ = htonl(0x7c2903a6);                                      // mtctr        r1
1184 + #if EMULATED_PPC
1185 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_DISABLE_INTERRUPT);
1186 + #else
1187          *lp++ = htonl(0x80200000 + XLM_IRQ_NEST);       // lwz          r1,XLM_IRQ_NEST
1188          *lp++ = htonl(0x38210001);                                      // addi         r1,r1,1
1189          *lp++ = htonl(0x90200000 + XLM_IRQ_NEST);       // stw          r1,XLM_IRQ_NEST
1190 + #endif
1191          *lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz              r1,XLM_KERNEL_DATA
1192          *lp++ = htonl(0x90c10018);                                      // stw          r6,0x18(r1)
1193          *lp++ = htonl(0x7cc902a6);                                      // mfctr        r6
# Line 1292 | Line 1322 | static bool patch_nanokernel(void)
1322          *lp = htonl(POWERPC_BCTR);
1323  
1324          lp = (uint32 *)(ROM_BASE + 0x318000);
1325 + #if EMULATED_PPC
1326 +        *lp++ = POWERPC_NATIVE_OP(NATIVE_ENABLE_INTERRUPT);
1327 +        *lp = htonl(0x48000000 + ((xlp - 0x8004) & 0x03fffffc));        // b            ROM_BASE+0x312c2c
1328 + #else
1329          *lp++ = htonl(0x81400000 + XLM_IRQ_NEST);       // lwz  r10,XLM_IRQ_NEST
1330          *lp++ = htonl(0x394affff);                                      // subi r10,r10,1
1331          *lp++ = htonl(0x91400000 + XLM_IRQ_NEST);       // stw  r10,XLM_IRQ_NEST
1332          *lp = htonl(0x48000000 + ((xlp - 0x800c) & 0x03fffffc));        // b            ROM_BASE+0x312c2c
1333 + #endif
1334 +
1335   /*
1336          // Disable FE0A/FE06 opcodes
1337          lp = (uint32 *)(ROM_BASE + 0x3144ac);
# Line 2013 | Line 2049 | static bool patch_68k(void)
2049          wp = (uint16 *)(ROM_BASE + base);
2050          if (ROMType == ROMTYPE_ZANZIBAR)
2051                  *wp = htons(M68K_RTS);
2052 <        else
2052 >        else if (ntohs(wp[-4]) == 0x61ff)
2053 >                *wp = htons(M68K_RTS);
2054 >        else if (ntohs(wp[-2]) == 0x6700)
2055                  wp[-2] = htons(0x6000); // bra
2056  
2057          // Patch PowerOff()
# Line 2149 | Line 2187 | void InstallDrivers(void)
2187                  WriteMacInt16(dce + dCtlFlags, SonyDriverFlags);
2188          }
2189  
2190 + #if DISABLE_SCSI && 0
2191 +        // Fake SCSIGlobals
2192 +        static const uint8 fake_scsi_globals[32] = {0,};
2193 +        WriteMacInt32(0xc0c, (uint32)fake_scsi_globals);
2194 + #endif
2195 +
2196          // Open .Sony driver
2197          WriteMacInt8((uint32)pb + ioPermssn, 0);
2198          WriteMacInt32((uint32)pb + ioNamePtr, (uint32)"\005.Sony");

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