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root/cebix/BasiliskII/src/rom_patches.cpp
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Comparing BasiliskII/src/rom_patches.cpp (file contents):
Revision 1.15 by cebix, 2000-07-22T16:07:17Z vs.
Revision 1.16 by jlachmann, 2000-08-20T14:08:40Z

# Line 44 | Line 44 | uint32 PutScrapPatch;          // Mac address of
44   uint32 ROMBreakpoint = 0;       // ROM offset of breakpoint (0 = disabled, 0x2310 = CritError)
45   bool PrintROMInfo = false;      // Flag: print ROM information in PatchROM()
46  
47 < static uint32 sony_offset;                              // ROM offset of .Sony driver
48 < static uint32 serd_offset;                              // ROM offset of SERD resource (serial drivers)
49 < static uint32 microseconds_offset;              // ROM offset of Microseconds() replacement routine
47 > static uint32 sony_offset;              // ROM offset of .Sony driver
48 > static uint32 serd_offset;              // ROM offset of SERD resource (serial drivers)
49 > static uint32 microseconds_offset;      // ROM offset of Microseconds() replacement routine
50 > static uint32 debugutil_offset;         // ROM offset of DebugUtil() replacement routine
51  
52   // Prototypes
53   uint16 ROMVersion;
# Line 701 | Line 702 | void InstallDrivers(uint32 pb)
702          r.d[0] = 0xa093;
703          Execute68kTrap(0xa247, &r);             // SetOSTrapAddress()
704  
705 +        // Install DebugUtil() replacement routine
706 +        r.a[0] = ROMBaseMac + debugutil_offset;
707 +        r.d[0] = 0xa08d;
708 +        Execute68kTrap(0xa247, &r);             // SetOSTrapAddress()
709 +
710          // Install disk driver
711          r.a[0] = ROMBaseMac + sony_offset + 0x100;
712          r.d[0] = (uint32)DiskRefNum;
# Line 930 | Line 936 | static bool patch_rom_classic(void)
936          *wp++ = htons(M68K_RTS);
937          microseconds_offset = (uint8 *)wp - ROMBaseHost;
938          *wp++ = htons(M68K_EMUL_OP_MICROSECONDS);
939 +        *wp++ = htons(M68K_RTS);
940 +
941 +        // Replace DebugUtil
942 +        debugutil_offset = (uint8 *)wp - ROMBaseHost;
943 +        *wp++ = htons(M68K_EMUL_OP_DEBUGUTIL);
944          *wp = htons(M68K_RTS);
945  
946          // Replace SCSIDispatch()
# Line 1192 | Line 1203 | static bool patch_rom_32(void)
1203          *wp = htons(M68K_RTS);
1204  
1205          // Fake CPU speed test (SetupTimeK)
1206 +        // *** increased jl : MacsBug uses TimeDBRA for kbd repeat timing
1207          wp = (uint16 *)(ROMBaseHost + 0x800);
1208          *wp++ = htons(0x31fc);                  // move.w       #xxx,TimeDBRA
1209 <        *wp++ = htons(100);
1209 >        *wp++ = htons(10000);
1210          *wp++ = htons(0x0d00);
1211          *wp++ = htons(0x31fc);                  // move.w       #xxx,TimeSCCDBRA
1212 <        *wp++ = htons(100);
1212 >        *wp++ = htons(10000);
1213          *wp++ = htons(0x0d02);
1214          *wp++ = htons(0x31fc);                  // move.w       #xxx,TimeSCSIDBRA
1215 <        *wp++ = htons(100);
1215 >        *wp++ = htons(10000);
1216          *wp++ = htons(0x0b24);
1217          *wp++ = htons(0x31fc);                  // move.w       #xxx,TimeRAMDBRA
1218 <        *wp++ = htons(100);
1218 >        *wp++ = htons(10000);
1219          *wp++ = htons(0x0cea);
1220          *wp = htons(M68K_RTS);
1221  
# Line 1215 | Line 1227 | static bool patch_rom_32(void)
1227   #endif
1228  
1229   #if !ROM_IS_WRITE_PROTECTED
1230 < #if defined(AMIGA) || defined(__NetBSD__)
1230 > #if defined(AMIGA)
1231          // Set fake handle at 0x0000 to scratch memory area (so broken Mac programs won't write into Mac ROM)
1232          extern uint32 ScratchMem;
1233          wp = (uint16 *)(ROMBaseHost + 0xccaa);
# Line 1526 | Line 1538 | static bool patch_rom_32(void)
1538          *wp++ = htons(M68K_RTS);
1539          microseconds_offset = (uint8 *)wp - ROMBaseHost;
1540          *wp++ = htons(M68K_EMUL_OP_MICROSECONDS);
1541 +        *wp++ = htons(M68K_RTS);
1542 +
1543 +        // Replace DebugUtil
1544 +        debugutil_offset = (uint8 *)wp - ROMBaseHost;
1545 +        *wp++ = htons(M68K_EMUL_OP_DEBUGUTIL);
1546          *wp = htons(M68K_RTS);
1547  
1548          // Replace SCSIDispatch()

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