| 1 |
/* |
| 2 |
* rsrc_patches.cpp - Resource patches |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-2008 Christian Bauer |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#include <string.h> |
| 22 |
|
| 23 |
#include "sysdeps.h" |
| 24 |
#include "cpu_emulation.h" |
| 25 |
#include "macos_util.h" |
| 26 |
#include "main.h" |
| 27 |
#include "prefs.h" |
| 28 |
#include "emul_op.h" |
| 29 |
#include "audio.h" |
| 30 |
#include "audio_defs.h" |
| 31 |
#include "rsrc_patches.h" |
| 32 |
|
| 33 |
#if ENABLE_MON |
| 34 |
#include "mon.h" |
| 35 |
#endif |
| 36 |
|
| 37 |
#define DEBUG 0 |
| 38 |
#include "debug.h" |
| 39 |
|
| 40 |
|
| 41 |
/* |
| 42 |
* Search resource for byte string, return offset (or 0) |
| 43 |
*/ |
| 44 |
|
| 45 |
static uint32 find_rsrc_data(const uint8 *rsrc, uint32 max, const uint8 *search, uint32 search_len, uint32 ofs = 0) |
| 46 |
{ |
| 47 |
while (ofs < max - search_len) { |
| 48 |
if (!memcmp(rsrc + ofs, search, search_len)) |
| 49 |
return ofs; |
| 50 |
ofs++; |
| 51 |
} |
| 52 |
return 0; |
| 53 |
} |
| 54 |
|
| 55 |
|
| 56 |
/* |
| 57 |
* Install SynchIdleTime() patch |
| 58 |
*/ |
| 59 |
|
| 60 |
static void patch_idle_time(uint8 *p, uint32 size, int n = 1) |
| 61 |
{ |
| 62 |
if (!PrefsFindBool("idlewait")) |
| 63 |
return; |
| 64 |
|
| 65 |
static const uint8 dat[] = {0x70, 0x03, 0xa0, 0x9f}; |
| 66 |
uint32 base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 67 |
if (base) { |
| 68 |
uint8 *pbase = p + base - 0x80; |
| 69 |
static const uint8 dat2[] = {0x20, 0x78, 0x02, 0xb6, 0x41, 0xe8, 0x00, 0x80}; |
| 70 |
base = find_rsrc_data(pbase, 0x80, dat2, sizeof(dat2)); |
| 71 |
if (base) { |
| 72 |
uint16 *p16 = (uint16 *)(pbase + base); |
| 73 |
*p16++ = htons(M68K_EMUL_OP_IDLE_TIME); |
| 74 |
*p16 = htons(M68K_NOP); |
| 75 |
FlushCodeCache(pbase + base, 4); |
| 76 |
D(bug(" patch %d applied\n", n)); |
| 77 |
} |
| 78 |
} |
| 79 |
} |
| 80 |
|
| 81 |
|
| 82 |
/* |
| 83 |
* Resource patches via vCheckLoad |
| 84 |
*/ |
| 85 |
|
| 86 |
void CheckLoad(uint32 type, int16 id, uint8 *p, uint32 size) |
| 87 |
{ |
| 88 |
uint16 *p16; |
| 89 |
uint32 base; |
| 90 |
D(bug("vCheckLoad %c%c%c%c (%08x) ID %d, data %p, size %d\n", (char)(type >> 24), (char)((type >> 16) & 0xff), (char )((type >> 8) & 0xff), (char )(type & 0xff), type, id, p, size)); |
| 91 |
|
| 92 |
if (type == FOURCC('b','o','o','t') && id == 3) { |
| 93 |
D(bug(" boot 3 found\n")); |
| 94 |
|
| 95 |
// Set boot stack pointer (7.5, 7.6, 7.6.1, 8.0) |
| 96 |
static const uint8 dat[] = {0x22, 0x00, 0xe4, 0x89, 0x90, 0x81, 0x22, 0x40}; |
| 97 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 98 |
if (base) { |
| 99 |
p16 = (uint16 *)(p + base + 6); |
| 100 |
*p16 = htons(M68K_EMUL_OP_FIX_BOOTSTACK); |
| 101 |
FlushCodeCache(p + base + 6, 2); |
| 102 |
D(bug(" patch 1 applied\n")); |
| 103 |
} |
| 104 |
|
| 105 |
#if !ROM_IS_WRITE_PROTECTED |
| 106 |
// Set fake handle at 0x0000 to some safe place (so broken Mac programs won't write into Mac ROM) (7.1, 7.5, 8.0) |
| 107 |
static const uint8 dat2[] = {0x20, 0x78, 0x02, 0xae, 0xd1, 0xfc, 0x00, 0x01, 0x00, 0x00, 0x21, 0xc8, 0x00, 0x00}; |
| 108 |
base = find_rsrc_data(p, size, dat2, sizeof(dat2)); |
| 109 |
if (base) { |
| 110 |
p16 = (uint16 *)(p + base); |
| 111 |
|
| 112 |
#if defined(USE_SCRATCHMEM_SUBTERFUGE) |
| 113 |
// Set 0x0000 to scratch memory area |
| 114 |
extern uint8 *ScratchMem; |
| 115 |
const uint32 ScratchMemBase = Host2MacAddr(ScratchMem); |
| 116 |
*p16++ = htons(0x207c); // move.l #ScratchMem,a0 |
| 117 |
*p16++ = htons(ScratchMemBase >> 16); |
| 118 |
*p16++ = htons(ScratchMemBase); |
| 119 |
*p16++ = htons(M68K_NOP); |
| 120 |
*p16 = htons(M68K_NOP); |
| 121 |
#else |
| 122 |
#error System specific handling for writable ROM is required here |
| 123 |
#endif |
| 124 |
FlushCodeCache(p + base, 14); |
| 125 |
D(bug(" patch 2 applied\n")); |
| 126 |
} |
| 127 |
|
| 128 |
} else if (type == FOURCC('b','o','o','t') && id == 2) { |
| 129 |
D(bug(" boot 2 found\n")); |
| 130 |
|
| 131 |
// Set fake handle at 0x0000 to some safe place (so broken Mac programs won't write into Mac ROM) (7.1, 7.5, 8.0) |
| 132 |
static const uint8 dat[] = {0x20, 0x78, 0x02, 0xae, 0xd1, 0xfc, 0x00, 0x01, 0x00, 0x00, 0x21, 0xc8, 0x00, 0x00}; |
| 133 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 134 |
if (base) { |
| 135 |
p16 = (uint16 *)(p + base); |
| 136 |
|
| 137 |
#if defined(USE_SCRATCHMEM_SUBTERFUGE) |
| 138 |
// Set 0x0000 to scratch memory area |
| 139 |
extern uint8 *ScratchMem; |
| 140 |
const uint32 ScratchMemBase = Host2MacAddr(ScratchMem); |
| 141 |
*p16++ = htons(0x207c); // move.l #ScratchMem,a0 |
| 142 |
*p16++ = htons(ScratchMemBase >> 16); |
| 143 |
*p16++ = htons(ScratchMemBase); |
| 144 |
*p16++ = htons(M68K_NOP); |
| 145 |
*p16 = htons(M68K_NOP); |
| 146 |
#else |
| 147 |
#error System specific handling for writable ROM is required here |
| 148 |
#endif |
| 149 |
FlushCodeCache(p + base, 14); |
| 150 |
D(bug(" patch 1 applied\n")); |
| 151 |
} |
| 152 |
#endif |
| 153 |
|
| 154 |
} else if (type == FOURCC('P','T','C','H') && id == 630) { |
| 155 |
D(bug("PTCH 630 found\n")); |
| 156 |
|
| 157 |
// Don't replace Time Manager (Classic ROM, 6.0.3) |
| 158 |
static const uint8 dat[] = {0x30, 0x3c, 0x00, 0x58, 0xa2, 0x47}; |
| 159 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 160 |
if (base) { |
| 161 |
p16 = (uint16 *)(p + base); |
| 162 |
p16[2] = htons(M68K_NOP); |
| 163 |
p16[7] = htons(M68K_NOP); |
| 164 |
p16[12] = htons(M68K_NOP); |
| 165 |
FlushCodeCache(p + base, 26); |
| 166 |
D(bug(" patch 1 applied\n")); |
| 167 |
} |
| 168 |
|
| 169 |
// Don't replace Time Manager (Classic ROM, 6.0.8) |
| 170 |
static const uint8 dat2[] = {0x70, 0x58, 0xa2, 0x47}; |
| 171 |
base = find_rsrc_data(p, size, dat2, sizeof(dat2)); |
| 172 |
if (base) { |
| 173 |
p16 = (uint16 *)(p + base); |
| 174 |
p16[1] = htons(M68K_NOP); |
| 175 |
p16[5] = htons(M68K_NOP); |
| 176 |
p16[9] = htons(M68K_NOP); |
| 177 |
FlushCodeCache(p + base, 20); |
| 178 |
D(bug(" patch 1 applied\n")); |
| 179 |
} |
| 180 |
|
| 181 |
} else if (type == FOURCC('p','t','c','h') && id == 26) { |
| 182 |
D(bug(" ptch 26 found\n")); |
| 183 |
|
| 184 |
// Trap ABC4 is initialized with absolute ROM address (7.1, 7.5, 7.6, 7.6.1, 8.0) |
| 185 |
static const uint8 dat[] = {0x40, 0x83, 0x36, 0x10}; |
| 186 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 187 |
if (base) { |
| 188 |
p16 = (uint16 *)(p + base); |
| 189 |
*p16++ = htons((ROMBaseMac + 0x33610) >> 16); |
| 190 |
*p16 = htons((ROMBaseMac + 0x33610) & 0xffff); |
| 191 |
FlushCodeCache(p + base, 4); |
| 192 |
D(bug(" patch 1 applied\n")); |
| 193 |
} |
| 194 |
|
| 195 |
} else if (type == FOURCC('p','t','c','h') && id == 34) { |
| 196 |
D(bug(" ptch 34 found\n")); |
| 197 |
|
| 198 |
// Don't wait for VIA (Classic ROM, 6.0.8) |
| 199 |
static const uint8 dat[] = {0x22, 0x78, 0x01, 0xd4, 0x10, 0x11, 0x02, 0x00, 0x00, 0x30}; |
| 200 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 201 |
if (base) { |
| 202 |
p16 = (uint16 *)(p + base + 14); |
| 203 |
*p16 = htons(M68K_NOP); |
| 204 |
FlushCodeCache(p + base + 14, 2); |
| 205 |
D(bug(" patch 1 applied\n")); |
| 206 |
} |
| 207 |
|
| 208 |
// Don't replace ADBOp() (Classic ROM, 6.0.8) |
| 209 |
static const uint8 dat2[] = {0x21, 0xc0, 0x05, 0xf0}; |
| 210 |
base = find_rsrc_data(p, size, dat2, sizeof(dat2)); |
| 211 |
if (base) { |
| 212 |
p16 = (uint16 *)(p + base); |
| 213 |
*p16++ = htons(M68K_NOP); |
| 214 |
*p16 = htons(M68K_NOP); |
| 215 |
FlushCodeCache(p + base, 4); |
| 216 |
D(bug(" patch 2 applied\n")); |
| 217 |
} |
| 218 |
|
| 219 |
} else if (type == FOURCC('g','p','c','h') && id == 750) { |
| 220 |
D(bug(" gpch 750 found\n")); |
| 221 |
|
| 222 |
// Don't use PTEST instruction in BlockMove() (7.5, 7.6, 7.6.1, 8.0) |
| 223 |
static const uint8 dat[] = {0x20, 0x5f, 0x22, 0x5f, 0x0c, 0x38, 0x00, 0x04, 0x01, 0x2f}; |
| 224 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 225 |
if (base) { |
| 226 |
p16 = (uint16 *)(p + base + 4); |
| 227 |
*p16++ = htons(M68K_EMUL_OP_BLOCK_MOVE); |
| 228 |
*p16++ = htons(0x7000); |
| 229 |
*p16 = htons(M68K_RTS); |
| 230 |
FlushCodeCache(p + base + 4, 6); |
| 231 |
D(bug(" patch 1 applied\n")); |
| 232 |
} |
| 233 |
|
| 234 |
// Patch SynchIdleTime() |
| 235 |
patch_idle_time(p, size, 2); |
| 236 |
|
| 237 |
} else if (type == FOURCC('l','p','c','h') && id == 24) { |
| 238 |
D(bug(" lpch 24 found\n")); |
| 239 |
|
| 240 |
// Don't replace Time Manager (7.0.1, 7.1, 7.5, 7.6, 7.6.1, 8.0) |
| 241 |
static const uint8 dat[] = {0x70, 0x59, 0xa2, 0x47}; |
| 242 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 243 |
if (base) { |
| 244 |
p16 = (uint16 *)(p + base + 2); |
| 245 |
*p16++ = htons(M68K_NOP); |
| 246 |
p16 += 3; |
| 247 |
*p16++ = htons(M68K_NOP); |
| 248 |
p16 += 7; |
| 249 |
*p16 = htons(M68K_NOP); |
| 250 |
FlushCodeCache(p + base + 2, 28); |
| 251 |
D(bug(" patch 1 applied\n")); |
| 252 |
} |
| 253 |
|
| 254 |
} else if (type == FOURCC('l','p','c','h') && id == 31) { |
| 255 |
D(bug(" lpch 31 found\n")); |
| 256 |
|
| 257 |
// Don't write to VIA in vSoundDead() (7.0.1, 7.1, 7.5, 7.6, 7.6.1, 8.0) |
| 258 |
static const uint8 dat[] = {0x20, 0x78, 0x01, 0xd4, 0x08, 0xd0, 0x00, 0x07, 0x4e, 0x75}; |
| 259 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 260 |
if (base) { |
| 261 |
p16 = (uint16 *)(p + base); |
| 262 |
*p16 = htons(M68K_RTS); |
| 263 |
FlushCodeCache(p + base, 2); |
| 264 |
D(bug(" patch 1 applied\n")); |
| 265 |
} |
| 266 |
|
| 267 |
// Don't replace SCSI manager (7.1, 7.5, 7.6.1, 8.0) |
| 268 |
static const uint8 dat2[] = {0x0c, 0x6f, 0x00, 0x0e, 0x00, 0x04, 0x66, 0x0c}; |
| 269 |
base = find_rsrc_data(p, size, dat2, sizeof(dat2)); |
| 270 |
if (base) { |
| 271 |
p16 = (uint16 *)(p + base); |
| 272 |
*p16++ = htons(M68K_EMUL_OP_SCSI_DISPATCH); |
| 273 |
*p16++ = htons(0x2e49); // move.l a1,a7 |
| 274 |
*p16 = htons(M68K_JMP_A0); |
| 275 |
FlushCodeCache(p + base, 6); |
| 276 |
D(bug(" patch 2 applied\n")); |
| 277 |
} |
| 278 |
|
| 279 |
// Patch SynchIdleTime() |
| 280 |
patch_idle_time(p, size, 3); |
| 281 |
|
| 282 |
} else if (type == FOURCC('t','h','n','g') && id == -16563) { |
| 283 |
D(bug(" thng -16563 found\n")); |
| 284 |
|
| 285 |
// Set audio component flags (7.5, 7.6, 7.6.1, 8.0) |
| 286 |
*(uint32 *)(p + componentFlags) = htonl(audio_component_flags); |
| 287 |
D(bug(" patch 1 applied\n")); |
| 288 |
|
| 289 |
} else if (type == FOURCC('s','i','f','t') && id == -16563) { |
| 290 |
D(bug(" sift -16563 found\n")); |
| 291 |
|
| 292 |
// Replace audio component (7.5, 7.6, 7.6.1, 8.0) |
| 293 |
p16 = (uint16 *)p; |
| 294 |
*p16++ = htons(0x4e56); *p16++ = htons(0x0000); // link a6,#0 |
| 295 |
*p16++ = htons(0x48e7); *p16++ = htons(0x8018); // movem.l d0/a3-a4,-(sp) |
| 296 |
*p16++ = htons(0x266e); *p16++ = htons(0x000c); // movea.l 12(a6),a3 |
| 297 |
*p16++ = htons(0x286e); *p16++ = htons(0x0008); // movea.l 8(a6),a4 |
| 298 |
*p16++ = htons(M68K_EMUL_OP_AUDIO); |
| 299 |
*p16++ = htons(0x2d40); *p16++ = htons(0x0010); // move.l d0,16(a6) |
| 300 |
*p16++ = htons(0x4cdf); *p16++ = htons(0x1801); // movem.l (sp)+,d0/a3-a4 |
| 301 |
*p16++ = htons(0x4e5e); // unlk a6 |
| 302 |
*p16++ = htons(0x4e74); *p16++ = htons(0x0008); // rtd #8 |
| 303 |
FlushCodeCache(p, 32); |
| 304 |
D(bug(" patch 1 applied\n")); |
| 305 |
|
| 306 |
} else if (type == FOURCC('i','n','s','t') && id == -19069) { |
| 307 |
D(bug(" inst -19069 found\n")); |
| 308 |
|
| 309 |
// Don't replace Microseconds (QuickTime 2.0) |
| 310 |
static const uint8 dat[] = {0x30, 0x3c, 0xa1, 0x93, 0xa2, 0x47}; |
| 311 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 312 |
if (base) { |
| 313 |
p16 = (uint16 *)(p + base + 4); |
| 314 |
*p16 = htons(M68K_NOP); |
| 315 |
FlushCodeCache(p + base + 4, 2); |
| 316 |
D(bug(" patch 1 applied\n")); |
| 317 |
} |
| 318 |
|
| 319 |
} else if (type == FOURCC('D','R','V','R') && id == -20066) { |
| 320 |
D(bug("DRVR -20066 found\n")); |
| 321 |
|
| 322 |
// Don't access SCC in .Infra driver |
| 323 |
static const uint8 dat[] = {0x28, 0x78, 0x01, 0xd8, 0x48, 0xc7, 0x20, 0x0c, 0xd0, 0x87, 0x20, 0x40, 0x1c, 0x10}; |
| 324 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 325 |
if (base) { |
| 326 |
p16 = (uint16 *)(p + base + 12); |
| 327 |
*p16 = htons(0x7a00); // moveq #0,d6 |
| 328 |
FlushCodeCache(p + base + 12, 2); |
| 329 |
D(bug(" patch 1 applied\n")); |
| 330 |
} |
| 331 |
|
| 332 |
} else if (type == FOURCC('l','t','l','k') && id == 0) { |
| 333 |
D(bug(" ltlk 0 found\n")); |
| 334 |
|
| 335 |
// Disable LocalTalk (7.0.1, 7.5, 7.6, 7.6.1, 8.0) |
| 336 |
p16 = (uint16 *)p; |
| 337 |
*p16++ = htons(M68K_JMP_A0); |
| 338 |
*p16++ = htons(0x7000); |
| 339 |
*p16 = htons(M68K_RTS); |
| 340 |
FlushCodeCache(p, 6); |
| 341 |
D(bug(" patch 1 applied\n")); |
| 342 |
|
| 343 |
} else if (type == FOURCC('D','R','V','R') && id == 41) { |
| 344 |
D(bug(" DRVR 41 found\n")); |
| 345 |
|
| 346 |
// Don't access ROM85 as it it was a pointer to a ROM version number (8.0, 8.1) |
| 347 |
static const uint8 dat[] = {0x3a, 0x2e, 0x00, 0x0a, 0x55, 0x4f, 0x3e, 0xb8, 0x02, 0x8e, 0x30, 0x1f, 0x48, 0xc0, 0x24, 0x40, 0x20, 0x40}; |
| 348 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 349 |
if (base) { |
| 350 |
p16 = (uint16 *)(p + base + 4); |
| 351 |
*p16++ = htons(0x303c); // move.l #ROM85,%d0 |
| 352 |
*p16++ = htons(0x028e); |
| 353 |
*p16++ = htons(M68K_NOP); |
| 354 |
*p16++ = htons(M68K_NOP); |
| 355 |
FlushCodeCache(p + base + 4, 8); |
| 356 |
D(bug(" patch 1 applied\n")); |
| 357 |
} |
| 358 |
} |
| 359 |
} |
