| 43 |
|
uint32 PutScrapPatch; // Mac address of PutScrap() patch |
| 44 |
|
uint32 ROMBreakpoint = 0; // ROM offset of breakpoint (0 = disabled, 0x2310 = CritError) |
| 45 |
|
bool PrintROMInfo = false; // Flag: print ROM information in PatchROM() |
| 46 |
+ |
bool PatchHWBases = true; // Flag: patch hardware base addresses |
| 47 |
|
|
| 48 |
|
static uint32 sony_offset; // ROM offset of .Sony driver |
| 49 |
|
static uint32 serd_offset; // ROM offset of SERD resource (serial drivers) |
| 53 |
|
// Prototypes |
| 54 |
|
uint16 ROMVersion; |
| 55 |
|
|
| 55 |
– |
|
| 56 |
|
/* |
| 57 |
< |
* Convenience functions for retrieving a particular 16-bit word from |
| 58 |
< |
* a 32-bit word value. |
| 59 |
< |
* |
| 60 |
< |
* gb-- probably put those elsewhere... |
| 57 |
> |
* Macros used to extract one of the 16-bit words from a 32-bit word value |
| 58 |
|
*/ |
| 59 |
|
|
| 60 |
|
#define HiWord(X) (((X) >> 16) & 0xffff) |
| 1029 |
|
bp = ROMBaseHost + UniversalInfo + 18; // productKind |
| 1030 |
|
*bp = PrefsFindInt32("modelid"); |
| 1031 |
|
|
| 1032 |
+ |
#if !ROM_IS_WRITE_PROTECTED |
| 1033 |
+ |
#if defined(USE_SCRATCHMEM_SUBTERFUGE) |
| 1034 |
+ |
// Set hardware base addresses to scratch memory area |
| 1035 |
+ |
if (PatchHWBases) { |
| 1036 |
+ |
extern uint8 *ScratchMem; |
| 1037 |
+ |
const uint32 ScratchMemBase = Host2MacAddr(ScratchMem); |
| 1038 |
+ |
|
| 1039 |
+ |
D(bug("LMGlob\tOfs/4\tBase\n")); |
| 1040 |
+ |
base = ROMBaseMac + UniversalInfo + ReadMacInt32(ROMBaseMac + UniversalInfo); // decoderInfoPtr |
| 1041 |
+ |
wp = (uint16 *)(ROMBaseHost + 0x94a); |
| 1042 |
+ |
while (*wp != 0xffff) { |
| 1043 |
+ |
int16 ofs = ntohs(*wp++); // offset in decoderInfo (/4) |
| 1044 |
+ |
int16 lmg = ntohs(*wp++); // address of LowMem global |
| 1045 |
+ |
D(bug("0x%04x\t%d\t0x%08x\n", lmg, ofs, ReadMacInt32(base + ofs*4))); |
| 1046 |
+ |
|
| 1047 |
+ |
// Fake address only if this is not the ASC base |
| 1048 |
+ |
if (lmg != 0xcc0) |
| 1049 |
+ |
WriteMacInt32(base + ofs*4, ScratchMemBase); |
| 1050 |
+ |
} |
| 1051 |
+ |
} |
| 1052 |
+ |
#else |
| 1053 |
+ |
#error System specific handling for writable ROM is required here |
| 1054 |
+ |
#endif |
| 1055 |
+ |
#endif |
| 1056 |
+ |
|
| 1057 |
|
// Make FPU optional |
| 1058 |
|
if (FPUType == 0) { |
| 1059 |
|
bp = ROMBaseHost + UniversalInfo + 22; // defaultRSRCs |
