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root/cebix/BasiliskII/src/rsrc_patches.cpp
Revision: 1.16
Committed: 2008-01-01T09:40:31Z (16 years, 10 months ago) by gbeauche
Branch: MAIN
CVS Tags: HEAD
Changes since 1.15: +1 -1 lines
Log Message:
Happy New Year!

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * rsrc_patches.cpp - Resource patches
3     *
4 gbeauche 1.16 * Basilisk II (C) 1997-2008 Christian Bauer
5 cebix 1.1 *
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 cebix 1.5 #include "macos_util.h"
26 cebix 1.1 #include "main.h"
27 gbeauche 1.15 #include "prefs.h"
28 cebix 1.1 #include "emul_op.h"
29     #include "audio.h"
30     #include "audio_defs.h"
31     #include "rsrc_patches.h"
32    
33 cebix 1.2 #if ENABLE_MON
34     #include "mon.h"
35     #endif
36    
37 cebix 1.1 #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 gbeauche 1.15 * 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 cebix 1.1 * 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 cebix 1.10 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 gbeauche 1.6
92 cebix 1.5 if (type == FOURCC('b','o','o','t') && id == 3) {
93 cebix 1.1 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 cebix 1.10 // 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 cebix 1.1 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 cebix 1.9 #if defined(USE_SCRATCHMEM_SUBTERFUGE)
113 cebix 1.1 // Set 0x0000 to scratch memory area
114 gbeauche 1.6 extern uint8 *ScratchMem;
115     const uint32 ScratchMemBase = Host2MacAddr(ScratchMem);
116 cebix 1.1 *p16++ = htons(0x207c); // move.l #ScratchMem,a0
117 gbeauche 1.6 *p16++ = htons(ScratchMemBase >> 16);
118     *p16++ = htons(ScratchMemBase);
119 cebix 1.1 *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 cebix 1.5 } else if (type == FOURCC('b','o','o','t') && id == 2) {
129 cebix 1.1 D(bug(" boot 2 found\n"));
130    
131 cebix 1.10 // 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 cebix 1.1 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 cebix 1.10 #if defined(USE_SCRATCHMEM_SUBTERFUGE)
138 cebix 1.1 // Set 0x0000 to scratch memory area
139 gbeauche 1.6 extern uint8 *ScratchMem;
140     const uint32 ScratchMemBase = Host2MacAddr(ScratchMem);
141 cebix 1.1 *p16++ = htons(0x207c); // move.l #ScratchMem,a0
142 gbeauche 1.6 *p16++ = htons(ScratchMemBase >> 16);
143     *p16++ = htons(ScratchMemBase);
144 cebix 1.1 *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 cebix 1.5 } else if (type == FOURCC('P','T','C','H') && id == 630) {
155 cebix 1.1 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 cebix 1.5 } else if (type == FOURCC('p','t','c','h') && id == 26) {
182 cebix 1.1 D(bug(" ptch 26 found\n"));
183    
184 cebix 1.10 // Trap ABC4 is initialized with absolute ROM address (7.1, 7.5, 7.6, 7.6.1, 8.0)
185 cebix 1.1 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 cebix 1.5 } else if (type == FOURCC('p','t','c','h') && id == 34) {
196 cebix 1.1 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 cebix 1.5 } else if (type == FOURCC('g','p','c','h') && id == 750) {
220 cebix 1.1 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 cebix 1.7 static const uint8 dat[] = {0x20, 0x5f, 0x22, 0x5f, 0x0c, 0x38, 0x00, 0x04, 0x01, 0x2f};
224 cebix 1.1 base = find_rsrc_data(p, size, dat, sizeof(dat));
225     if (base) {
226 cebix 1.7 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 cebix 1.1 D(bug(" patch 1 applied\n"));
232     }
233    
234 gbeauche 1.15 // Patch SynchIdleTime()
235     patch_idle_time(p, size, 2);
236    
237 cebix 1.5 } else if (type == FOURCC('l','p','c','h') && id == 24) {
238 cebix 1.1 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 cebix 1.5 } else if (type == FOURCC('l','p','c','h') && id == 31) {
255 cebix 1.1 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 gbeauche 1.15 // Patch SynchIdleTime()
280     patch_idle_time(p, size, 3);
281    
282 cebix 1.5 } else if (type == FOURCC('t','h','n','g') && id == -16563) {
283 cebix 1.1 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 cebix 1.5 } else if (type == FOURCC('s','i','f','t') && id == -16563) {
290 cebix 1.1 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 cebix 1.5 } else if (type == FOURCC('i','n','s','t') && id == -19069) {
307 cebix 1.1 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 cebix 1.5 } else if (type == FOURCC('D','R','V','R') && id == -20066) {
320 cebix 1.1 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 cebix 1.5 } else if (type == FOURCC('l','t','l','k') && id == 0) {
333 cebix 1.1 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 gbeauche 1.14
343     } else if (type == FOURCC('D','R','V','R') && id == 41) {
344 gbeauche 1.6 D(bug(" DRVR 41 found\n"));
345    
346 gbeauche 1.14 // Don't access ROM85 as it it was a pointer to a ROM version number (8.0, 8.1)
347 gbeauche 1.6 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 gbeauche 1.14 *p16++ = htons(0x303c); // move.l #ROM85,%d0
352 gbeauche 1.6 *p16++ = htons(0x028e);
353     *p16++ = htons(M68K_NOP);
354 gbeauche 1.14 *p16++ = htons(M68K_NOP);
355     FlushCodeCache(p + base + 4, 8);
356 gbeauche 1.6 D(bug(" patch 1 applied\n"));
357     }
358     }
359 cebix 1.1 }