1 |
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/* |
2 |
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* rom_patches.cpp - ROM patches |
3 |
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* |
4 |
< |
* Basilisk II (C) 1997-1999 Christian Bauer |
4 |
> |
* Basilisk II (C) 1997-2000 Christian Bauer |
5 |
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* |
6 |
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* This program is free software; you can redistribute it and/or modify |
7 |
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* it under the terms of the GNU General Public License as published by |
38 |
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#include "debug.h" |
39 |
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|
40 |
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|
41 |
– |
// Breakpoint (offset into ROM) |
42 |
– |
uint32 ROMBreakpoint = 0; // 0 = disabled, 0x2310 = CritError |
43 |
– |
|
41 |
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// Global variables |
42 |
< |
uint32 UniversalInfo; // ROM offset of UniversalInfo |
43 |
< |
uint32 PutScrapPatch; // Mac address of PutScrap() patch |
44 |
< |
|
45 |
< |
static uint32 sony_offset; // ROM offset of .Sony driver |
46 |
< |
static uint32 serd_offset; // ROM offset of SERD resource (serial drivers) |
47 |
< |
static uint32 microseconds_offset; // ROM offset of Microseconds() replacement routine |
48 |
< |
static uint32 memory_dispatch_offset; // ROM offset of MemoryDispatch() replacement routine |
42 |
> |
uint32 UniversalInfo; // ROM offset of UniversalInfo |
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 |
> |
|
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 |
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|
52 |
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// Prototypes |
53 |
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uint16 ROMVersion; |
54 |
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|
55 |
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|
56 |
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/* |
57 |
+ |
* Convenience functions for retrieving a particular 16-bit word from |
58 |
+ |
* a 32-bit word value. |
59 |
+ |
* |
60 |
+ |
* gb-- probably put those elsewhere... |
61 |
+ |
*/ |
62 |
+ |
|
63 |
+ |
#define HiWord(X) (((X) >> 16) & 0xffff) |
64 |
+ |
#define LoWord(X) ((X) & 0xffff) |
65 |
+ |
|
66 |
+ |
|
67 |
+ |
/* |
68 |
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* Search ROM for byte string, return ROM offset (or 0) |
69 |
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*/ |
70 |
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|
93 |
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|
94 |
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if (!cont) |
95 |
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rsrc_ptr = x; |
96 |
+ |
else |
97 |
+ |
rsrc_ptr = ReadMacInt32(ROMBaseMac + rsrc_ptr + 8); |
98 |
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|
99 |
|
for (;;) { |
100 |
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lp = ROMBaseMac + rsrc_ptr; |
153 |
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|
154 |
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|
155 |
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/* |
156 |
+ |
* Print ROM information to stream, |
157 |
+ |
*/ |
158 |
+ |
|
159 |
+ |
static void list_rom_resources(void) |
160 |
+ |
{ |
161 |
+ |
printf("ROM Resources:\n"); |
162 |
+ |
printf("Offset\t Type\tID\tSize\tName\n"); |
163 |
+ |
printf("------------------------------------------------\n"); |
164 |
+ |
|
165 |
+ |
uint32 lp = ROMBaseMac + ReadMacInt32(ROMBaseMac + 0x1a); |
166 |
+ |
uint32 rsrc_ptr = ReadMacInt32(lp); |
167 |
+ |
|
168 |
+ |
for (;;) { |
169 |
+ |
lp = ROMBaseMac + rsrc_ptr; |
170 |
+ |
uint32 data = ReadMacInt32(lp + 12); |
171 |
+ |
|
172 |
+ |
char name[32]; |
173 |
+ |
int name_len = ReadMacInt8(lp + 23), i; |
174 |
+ |
for (i=0; i<name_len; i++) |
175 |
+ |
name[i] = ReadMacInt8(lp + 24 + i); |
176 |
+ |
name[i] = 0; |
177 |
+ |
|
178 |
+ |
printf("%08x %c%c%c%c\t%d\t%d\t%s\n", data, ReadMacInt8(lp + 16), ReadMacInt8(lp + 17), ReadMacInt8(lp + 18), ReadMacInt8(lp + 19), ReadMacInt16(lp + 20), ReadMacInt32(ROMBaseMac + data - 8), name); |
179 |
+ |
|
180 |
+ |
rsrc_ptr = ReadMacInt32(lp + 8); |
181 |
+ |
if (!rsrc_ptr) |
182 |
+ |
break; |
183 |
+ |
} |
184 |
+ |
printf("\n"); |
185 |
+ |
} |
186 |
+ |
|
187 |
+ |
// Mapping of Model IDs to Model names |
188 |
+ |
struct mac_desc { |
189 |
+ |
char *name; |
190 |
+ |
int32 id; |
191 |
+ |
}; |
192 |
+ |
|
193 |
+ |
static mac_desc MacDesc[] = { |
194 |
+ |
{"Classic" , 1}, |
195 |
+ |
{"Mac XL" , 2}, |
196 |
+ |
{"Mac 512KE" , 3}, |
197 |
+ |
{"Mac Plus" , 4}, |
198 |
+ |
{"Mac SE" , 5}, |
199 |
+ |
{"Mac II" , 6}, |
200 |
+ |
{"Mac IIx" , 7}, |
201 |
+ |
{"Mac IIcx" , 8}, |
202 |
+ |
{"Mac SE/030" , 9}, |
203 |
+ |
{"Mac Portable" , 10}, |
204 |
+ |
{"Mac IIci" , 11}, |
205 |
+ |
{"Mac IIfx" , 13}, |
206 |
+ |
{"Mac Classic" , 17}, |
207 |
+ |
{"Mac IIsi" , 18}, |
208 |
+ |
{"Mac LC" , 19}, |
209 |
+ |
{"Quadra 900" , 20}, |
210 |
+ |
{"PowerBook 170" , 21}, |
211 |
+ |
{"Quadra 700" , 22}, |
212 |
+ |
{"Classic II" , 23}, |
213 |
+ |
{"PowerBook 100" , 24}, |
214 |
+ |
{"PowerBook 140" , 25}, |
215 |
+ |
{"Quadra 950" , 26}, |
216 |
+ |
{"Mac LCIII/Performa 450", 27}, |
217 |
+ |
{"PowerBook Duo 210" , 29}, |
218 |
+ |
{"Centris 650" , 30}, |
219 |
+ |
{"PowerBook Duo 230" , 32}, |
220 |
+ |
{"PowerBook 180" , 33}, |
221 |
+ |
{"PowerBook 160" , 34}, |
222 |
+ |
{"Quadra 800" , 35}, |
223 |
+ |
{"Quadra 650" , 36}, |
224 |
+ |
{"Mac LCII" , 37}, |
225 |
+ |
{"PowerBook Duo 250" , 38}, |
226 |
+ |
{"Mac IIvi" , 44}, |
227 |
+ |
{"Mac IIvm/Performa 600", 45}, |
228 |
+ |
{"Mac IIvx" , 48}, |
229 |
+ |
{"Color Classic/Performa 250", 49}, |
230 |
+ |
{"PowerBook 165c" , 50}, |
231 |
+ |
{"Centris 610" , 52}, |
232 |
+ |
{"Quadra 610" , 53}, |
233 |
+ |
{"PowerBook 145" , 54}, |
234 |
+ |
{"Mac LC520" , 56}, |
235 |
+ |
{"Quadra/Centris 660AV" , 60}, |
236 |
+ |
{"Performa 46x" , 62}, |
237 |
+ |
{"PowerBook 180c" , 71}, |
238 |
+ |
{"PowerBook 520/520c/540/540c", 72}, |
239 |
+ |
{"PowerBook Duo 270c" , 77}, |
240 |
+ |
{"Quadra 840AV" , 78}, |
241 |
+ |
{"Performa 550" , 80}, |
242 |
+ |
{"PowerBook 165" , 84}, |
243 |
+ |
{"PowerBook 190" , 85}, |
244 |
+ |
{"Mac TV" , 88}, |
245 |
+ |
{"Mac LC475/Performa 47x", 89}, |
246 |
+ |
{"Mac LC575" , 92}, |
247 |
+ |
{"Quadra 605" , 94}, |
248 |
+ |
{"Quadra 630" , 98}, |
249 |
+ |
{"Mac LC580" , 99}, |
250 |
+ |
{"PowerBook Duo 280" , 102}, |
251 |
+ |
{"PowerBook Duo 280c" , 103}, |
252 |
+ |
{"PowerBook 150" , 115}, |
253 |
+ |
{"unknown", -1} |
254 |
+ |
}; |
255 |
+ |
|
256 |
+ |
static void print_universal_info(uint32 info) |
257 |
+ |
{ |
258 |
+ |
uint8 id = ReadMacInt8(info + 18); |
259 |
+ |
uint16 hwcfg = ReadMacInt16(info + 16); |
260 |
+ |
uint16 rom85 = ReadMacInt16(info + 20); |
261 |
+ |
|
262 |
+ |
// Find model name |
263 |
+ |
char *name = "unknown"; |
264 |
+ |
for (int i=0; MacDesc[i].id >= 0; i++) |
265 |
+ |
if (MacDesc[i].id == id + 6) { |
266 |
+ |
name = MacDesc[i].name; |
267 |
+ |
break; |
268 |
+ |
} |
269 |
+ |
|
270 |
+ |
printf("%08x %02x\t%04x\t%04x\t%s\n", info - ROMBaseMac, id, hwcfg, rom85, name); |
271 |
+ |
} |
272 |
+ |
|
273 |
+ |
static void list_universal_infos(void) |
274 |
+ |
{ |
275 |
+ |
uint32 ofs = 0x3000; |
276 |
+ |
for (int i=0; i<0x2000; i+=2, ofs+=2) |
277 |
+ |
if (ReadMacInt32(ROMBaseMac + ofs) == 0xdc000505) { |
278 |
+ |
ofs -= 16; |
279 |
+ |
uint32 q; |
280 |
+ |
for (q=ofs; q > 0 && ReadMacInt32(ROMBaseMac + q) != ofs - q; q-=4) ; |
281 |
+ |
if (q > 0) { |
282 |
+ |
printf("Universal Table at %08x:\n", q); |
283 |
+ |
printf("Offset\t ID\tHWCfg\tROM85\tModel\n"); |
284 |
+ |
printf("------------------------------------------------\n"); |
285 |
+ |
while ((ofs = ReadMacInt32(ROMBaseMac + q))) { |
286 |
+ |
print_universal_info(ROMBaseMac + ofs + q); |
287 |
+ |
q += 4; |
288 |
+ |
} |
289 |
+ |
} |
290 |
+ |
break; |
291 |
+ |
} |
292 |
+ |
printf("\n"); |
293 |
+ |
} |
294 |
+ |
|
295 |
+ |
static void print_rom_info(void) |
296 |
+ |
{ |
297 |
+ |
printf("\nROM Info:\n"); |
298 |
+ |
printf("Checksum : %08x\n", ReadMacInt32(ROMBaseMac)); |
299 |
+ |
printf("Version : %04x\n", ROMVersion); |
300 |
+ |
printf("Sub Version : %04x\n", ReadMacInt16(ROMBaseMac + 18)); |
301 |
+ |
printf("Resource Map: %08x\n", ReadMacInt32(ROMBaseMac + 26)); |
302 |
+ |
printf("Trap Tables : %08x\n\n", ReadMacInt32(ROMBaseMac + 34)); |
303 |
+ |
if (ROMVersion == ROM_VERSION_32) { |
304 |
+ |
list_rom_resources(); |
305 |
+ |
list_universal_infos(); |
306 |
+ |
} |
307 |
+ |
} |
308 |
+ |
|
309 |
+ |
|
310 |
+ |
/* |
311 |
|
* Driver stubs |
312 |
|
*/ |
313 |
|
|
705 |
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|
706 |
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void InstallDrivers(uint32 pb) |
707 |
|
{ |
708 |
< |
D(bug("InstallDrivers\n")); |
708 |
> |
D(bug("InstallDrivers, pb %08x\n", pb)); |
709 |
|
M68kRegisters r; |
710 |
|
|
711 |
|
// Install Microseconds() replacement routine |
713 |
|
r.d[0] = 0xa093; |
714 |
|
Execute68kTrap(0xa247, &r); // SetOSTrapAddress() |
715 |
|
|
716 |
< |
// Install MemoryDispatch() replacement routine |
717 |
< |
r.a[0] = ROMBaseMac + memory_dispatch_offset; |
718 |
< |
r.d[0] = 0xa05c; |
716 |
> |
// Install DebugUtil() replacement routine |
717 |
> |
r.a[0] = ROMBaseMac + debugutil_offset; |
718 |
> |
r.d[0] = 0xa08d; |
719 |
|
Execute68kTrap(0xa247, &r); // SetOSTrapAddress() |
720 |
|
|
721 |
|
// Install disk driver |
829 |
|
// Read version |
830 |
|
ROMVersion = ntohs(*(uint16 *)(ROMBaseHost + 8)); |
831 |
|
|
832 |
< |
#if REAL_ADDRESSING |
833 |
< |
// Real addressing mode requires a 32-bit clean ROM |
832 |
> |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
833 |
> |
// Real and direct addressing modes require a 32-bit clean ROM |
834 |
|
return ROMVersion == ROM_VERSION_32; |
835 |
|
#else |
836 |
|
// Virtual addressing mode works with 32-bit clean Mac II ROMs and Classic ROMs |
947 |
|
*wp++ = htons(M68K_RTS); |
948 |
|
microseconds_offset = (uint8 *)wp - ROMBaseHost; |
949 |
|
*wp++ = htons(M68K_EMUL_OP_MICROSECONDS); |
950 |
+ |
*wp++ = htons(M68K_RTS); |
951 |
+ |
|
952 |
+ |
// Replace DebugUtil |
953 |
+ |
debugutil_offset = (uint8 *)wp - ROMBaseHost; |
954 |
+ |
*wp++ = htons(M68K_EMUL_OP_DEBUGUTIL); |
955 |
|
*wp = htons(M68K_RTS); |
956 |
|
|
957 |
|
// Replace SCSIDispatch() |
1214 |
|
*wp = htons(M68K_RTS); |
1215 |
|
|
1216 |
|
// Fake CPU speed test (SetupTimeK) |
1217 |
+ |
// *** increased jl : MacsBug uses TimeDBRA for kbd repeat timing |
1218 |
|
wp = (uint16 *)(ROMBaseHost + 0x800); |
1219 |
|
*wp++ = htons(0x31fc); // move.w #xxx,TimeDBRA |
1220 |
< |
*wp++ = htons(100); |
1220 |
> |
*wp++ = htons(10000); |
1221 |
|
*wp++ = htons(0x0d00); |
1222 |
|
*wp++ = htons(0x31fc); // move.w #xxx,TimeSCCDBRA |
1223 |
< |
*wp++ = htons(100); |
1223 |
> |
*wp++ = htons(10000); |
1224 |
|
*wp++ = htons(0x0d02); |
1225 |
|
*wp++ = htons(0x31fc); // move.w #xxx,TimeSCSIDBRA |
1226 |
< |
*wp++ = htons(100); |
1226 |
> |
*wp++ = htons(10000); |
1227 |
|
*wp++ = htons(0x0b24); |
1228 |
|
*wp++ = htons(0x31fc); // move.w #xxx,TimeRAMDBRA |
1229 |
< |
*wp++ = htons(100); |
1229 |
> |
*wp++ = htons(10000); |
1230 |
|
*wp++ = htons(0x0cea); |
1231 |
|
*wp = htons(M68K_RTS); |
1232 |
|
|
1233 |
|
#if REAL_ADDRESSING |
1234 |
|
// Move system zone to start of Mac RAM |
1235 |
< |
lp = (uint32 *)(ROMBaseHost + 0x50a); |
1236 |
< |
*lp++ = htonl(RAMBaseMac); |
1237 |
< |
*lp = htonl(RAMBaseMac + 0x1800); |
1235 |
> |
wp = (uint16 *)(ROMBaseHost + 0x50a); |
1236 |
> |
*wp++ = htons(HiWord(RAMBaseMac + 0x2000)); |
1237 |
> |
*wp++ = htons(LoWord(RAMBaseMac + 0x2000)); |
1238 |
> |
*wp++ = htons(HiWord(RAMBaseMac + 0x3800)); |
1239 |
> |
*wp = htons(LoWord(RAMBaseMac + 0x3800)); |
1240 |
|
#endif |
1241 |
|
|
1242 |
|
#if !ROM_IS_WRITE_PROTECTED |
1243 |
< |
#if defined(AMIGA) |
1243 |
> |
#if defined(AMIGA) || defined(USE_SCRATCHMEM_SUBTERFUGE) |
1244 |
|
// Set fake handle at 0x0000 to scratch memory area (so broken Mac programs won't write into Mac ROM) |
1245 |
< |
extern uint32 ScratchMem; |
1245 |
> |
extern uint8 *ScratchMem; |
1246 |
> |
const uint32 ScratchMemBase = Host2MacAddr(ScratchMem); |
1247 |
|
wp = (uint16 *)(ROMBaseHost + 0xccaa); |
1248 |
|
*wp++ = htons(0x203c); // move.l #ScratchMem,d0 |
1249 |
< |
*wp++ = htons(ScratchMem >> 16); |
1250 |
< |
*wp = htons(ScratchMem); |
1249 |
> |
*wp++ = htons(ScratchMemBase >> 16); |
1250 |
> |
*wp = htons(ScratchMemBase); |
1251 |
|
#else |
1252 |
|
#error System specific handling for writable ROM is required here |
1253 |
|
#endif |
1259 |
|
*wp++ = htons(M68K_NOP); |
1260 |
|
*wp = htons(M68K_NOP); |
1261 |
|
#endif |
1262 |
< |
|
1262 |
> |
|
1263 |
> |
#if REAL_ADDRESSING && !defined(AMIGA) |
1264 |
> |
// gb-- Temporary hack to get rid of crashes in Speedometer |
1265 |
> |
wp = (uint16 *)(ROMBaseHost + 0xdba2); |
1266 |
> |
if (ntohs(*wp) == 0x662c) // bne.b #$2c |
1267 |
> |
*wp = htons(0x602c); // bra.b #$2c |
1268 |
> |
#endif |
1269 |
> |
|
1270 |
|
// Don't write to VIA in InitTimeMgr |
1271 |
|
wp = (uint16 *)(ROMBaseHost + 0xb0e2); |
1272 |
|
*wp++ = htons(0x4cdf); // movem.l (sp)+,d0-d5/a0-a4 |
1488 |
|
static const uint8 memdisp_dat[] = {0x30, 0x3c, 0xa8, 0x9f, 0xa7, 0x46, 0x30, 0x3c, 0xa0, 0x5c, 0xa2, 0x47}; |
1489 |
|
base = find_rom_data(0x4f100, 0x4f180, memdisp_dat, sizeof(memdisp_dat)); |
1490 |
|
D(bug("memdisp %08lx\n", base)); |
1491 |
< |
if (base) { // ROM15/32 |
1491 |
> |
if (base) { // ROM15/22/23/26/27/32 |
1492 |
|
wp = (uint16 *)(ROMBaseHost + base + 10); |
1493 |
|
*wp = htons(M68K_NOP); |
1494 |
|
} |
1495 |
|
|
1496 |
|
// Patch .EDisk driver (don't scan for EDisks in the area ROMBase..0xe00000) |
1497 |
< |
uint32 edisk_offset = find_rom_resource('DRVR', 51); |
1497 |
> |
uint32 edisk_offset = find_rom_resource(FOURCC('D','R','V','R'), 51); |
1498 |
|
if (edisk_offset) { |
1499 |
|
static const uint8 edisk_dat[] = {0xd5, 0xfc, 0x00, 0x01, 0x00, 0x00, 0xb5, 0xfc, 0x00, 0xe0, 0x00, 0x00}; |
1500 |
|
base = find_rom_data(edisk_offset, edisk_offset + 0x10000, edisk_dat, sizeof(edisk_dat)); |
1507 |
|
} |
1508 |
|
|
1509 |
|
// Replace .Sony driver |
1510 |
< |
sony_offset = find_rom_resource('DRVR', 4); |
1510 |
> |
sony_offset = find_rom_resource(FOURCC('D','R','V','R'), 4); |
1511 |
|
D(bug("sony %08lx\n", sony_offset)); |
1512 |
|
memcpy(ROMBaseHost + sony_offset, sony_driver, sizeof(sony_driver)); |
1513 |
|
|
1526 |
|
memcpy(ROMBaseHost + sony_offset + 0xa00, CDROMIcon, sizeof(CDROMIcon)); |
1527 |
|
|
1528 |
|
// Install SERD patch and serial drivers |
1529 |
< |
serd_offset = find_rom_resource('SERD', 0); |
1529 |
> |
serd_offset = find_rom_resource(FOURCC('S','E','R','D'), 0); |
1530 |
|
D(bug("serd %08lx\n", serd_offset)); |
1531 |
|
wp = (uint16 *)(ROMBaseHost + serd_offset + 12); |
1532 |
|
*wp++ = htons(M68K_EMUL_OP_SERD); |
1559 |
|
*wp++ = htons(M68K_RTS); |
1560 |
|
microseconds_offset = (uint8 *)wp - ROMBaseHost; |
1561 |
|
*wp++ = htons(M68K_EMUL_OP_MICROSECONDS); |
1562 |
+ |
*wp++ = htons(M68K_RTS); |
1563 |
+ |
|
1564 |
+ |
// Replace DebugUtil |
1565 |
+ |
debugutil_offset = (uint8 *)wp - ROMBaseHost; |
1566 |
+ |
*wp++ = htons(M68K_EMUL_OP_DEBUGUTIL); |
1567 |
|
*wp = htons(M68K_RTS); |
1568 |
|
|
1569 |
|
// Replace SCSIDispatch() |
1599 |
|
*wp++ = htons(base >> 16); |
1600 |
|
*wp = htons(base & 0xffff); |
1601 |
|
|
1414 |
– |
// Install MemoryDispatch() replacement routine (activated in PatchAfterStartup()) |
1415 |
– |
memory_dispatch_offset = sony_offset + 0xc20; |
1416 |
– |
wp = (uint16 *)(ROMBaseHost + memory_dispatch_offset); |
1417 |
– |
*wp++ = htons(M68K_EMUL_OP_MEMORY_DISPATCH); |
1418 |
– |
*wp = htons(M68K_RTS); |
1419 |
– |
|
1602 |
|
#if EMULATED_68K |
1603 |
|
// Replace BlockMove() |
1604 |
|
wp = (uint16 *)(ROMBaseHost + find_rom_trap(0xa02e)); // BlockMove() |
1607 |
|
*wp = htons(M68K_RTS); |
1608 |
|
#endif |
1609 |
|
|
1610 |
+ |
// Look for double PACK 4 resources |
1611 |
+ |
if ((base = find_rom_resource(FOURCC('P','A','C','K'), 4)) == 0) return false; |
1612 |
+ |
if ((base = find_rom_resource(FOURCC('P','A','C','K'), 4, true)) == 0 && FPUType == 0) |
1613 |
+ |
printf("WARNING: This ROM seems to require an FPU\n"); |
1614 |
+ |
|
1615 |
|
// Patch VIA interrupt handler |
1616 |
|
wp = (uint16 *)(ROMBaseHost + 0x9bc4); // Level 1 handler |
1617 |
|
*wp++ = htons(0x7002); // moveq #2,d0 (always 60Hz interrupt) |
1629 |
|
|
1630 |
|
bool PatchROM(void) |
1631 |
|
{ |
1632 |
< |
// Print ROM info |
1633 |
< |
D(bug("ROM Info:\n")); |
1634 |
< |
D(bug("Checksum: %08lx\n", ReadMacInt32(ROMBaseMac))); |
1448 |
< |
D(bug("Version: %04x\n", ROMVersion)); |
1449 |
< |
D(bug("Sub Version: %04x\n", ReadMacInt16(ROMBaseMac + 18))); |
1632 |
> |
// Print some information about the ROM |
1633 |
> |
if (PrintROMInfo) |
1634 |
> |
print_rom_info(); |
1635 |
|
|
1636 |
|
// Patch ROM depending on version |
1637 |
|
switch (ROMVersion) { |