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root/cebix/BasiliskII/src/rsrc_patches.cpp
Revision: 1.3
Committed: 2000-04-10T18:52:28Z (24 years, 1 month ago) by cebix
Branch: MAIN
CVS Tags: snapshot-13072000
Changes since 1.2: +1 -1 lines
Log Message:
- updated copyright info: 1999->2000

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * rsrc_patches.cpp - Resource patches
3     *
4 cebix 1.3 * Basilisk II (C) 1997-2000 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     #include "main.h"
26     #include "emul_op.h"
27     #include "audio.h"
28     #include "audio_defs.h"
29     #include "rsrc_patches.h"
30    
31 cebix 1.2 #if ENABLE_MON
32     #include "mon.h"
33     #endif
34    
35 cebix 1.1 #define DEBUG 0
36     #include "debug.h"
37    
38    
39     #if !EMULATED_68K
40     // Assembly functions
41     extern "C" void Scod060Patch1(void);
42     extern "C" void Scod060Patch2(void);
43     extern "C" void ThInitFPUPatch(void);
44     #endif
45    
46    
47     /*
48     * Search resource for byte string, return offset (or 0)
49     */
50    
51     static uint32 find_rsrc_data(const uint8 *rsrc, uint32 max, const uint8 *search, uint32 search_len, uint32 ofs = 0)
52     {
53     while (ofs < max - search_len) {
54     if (!memcmp(rsrc + ofs, search, search_len))
55     return ofs;
56     ofs++;
57     }
58     return 0;
59     }
60    
61    
62     /*
63     * Resource patches via vCheckLoad
64     */
65    
66     void CheckLoad(uint32 type, int16 id, uint8 *p, uint32 size)
67     {
68     uint16 *p16;
69     uint32 base;
70     D(bug("vCheckLoad %c%c%c%c (%08lx) ID %d, data %08lx, size %ld\n", (char)(type >> 24), (char)((type >> 16) & 0xff), (char )((type >> 8) & 0xff), (char )(type & 0xff), type, id, p, size));
71    
72     if (type == 'boot' && id == 3) {
73     D(bug(" boot 3 found\n"));
74    
75     // Set boot stack pointer (7.5, 7.6, 7.6.1, 8.0)
76     static const uint8 dat[] = {0x22, 0x00, 0xe4, 0x89, 0x90, 0x81, 0x22, 0x40};
77     base = find_rsrc_data(p, size, dat, sizeof(dat));
78     if (base) {
79     p16 = (uint16 *)(p + base + 6);
80     *p16 = htons(M68K_EMUL_OP_FIX_BOOTSTACK);
81     FlushCodeCache(p + base + 6, 2);
82     D(bug(" patch 1 applied\n"));
83     }
84    
85     #if !ROM_IS_WRITE_PROTECTED
86     // Set fake handle at 0x0000 to some safe place (so broken Mac programs won't write into Mac ROM) (7.5, 8.0)
87     static const uint8 dat2[] = {0x20, 0x78, 0x02, 0xae, 0xd1, 0xfc, 0x00, 0x01, 0x00, 0x00, 0x21, 0xc8, 0x00, 0x00};
88     base = find_rsrc_data(p, size, dat2, sizeof(dat2));
89     if (base) {
90     p16 = (uint16 *)(p + base);
91    
92     #if defined(AMIGA)
93     // Set 0x0000 to scratch memory area
94     extern uint32 ScratchMem;
95     *p16++ = htons(0x207c); // move.l #ScratchMem,a0
96     *p16++ = htons(ScratchMem >> 16);
97     *p16++ = htons(ScratchMem);
98     *p16++ = htons(M68K_NOP);
99     *p16 = htons(M68K_NOP);
100     #else
101     #error System specific handling for writable ROM is required here
102     #endif
103     FlushCodeCache(p + base, 14);
104     D(bug(" patch 2 applied\n"));
105     }
106    
107     } else if (type == 'boot' && id == 2) {
108     D(bug(" boot 2 found\n"));
109    
110     // Set fake handle at 0x0000 to some safe place (so broken Mac programs won't write into Mac ROM) (7.5, 8.0)
111     static const uint8 dat[] = {0x20, 0x78, 0x02, 0xae, 0xd1, 0xfc, 0x00, 0x01, 0x00, 0x00, 0x21, 0xc8, 0x00, 0x00};
112     base = find_rsrc_data(p, size, dat, sizeof(dat));
113     if (base) {
114     p16 = (uint16 *)(p + base);
115    
116     #if defined(AMIGA)
117     // Set 0x0000 to scratch memory area
118     extern uint32 ScratchMem;
119     *p16++ = htons(0x207c); // move.l #ScratchMem,a0
120     *p16++ = htons(ScratchMem >> 16);
121     *p16++ = htons(ScratchMem);
122     *p16++ = htons(M68K_NOP);
123     *p16 = htons(M68K_NOP);
124     #else
125     #error System specific handling for writable ROM is required here
126     #endif
127     FlushCodeCache(p + base, 14);
128     D(bug(" patch 1 applied\n"));
129     }
130     #endif
131    
132     } else if (type == 'PTCH' && id == 630) {
133     D(bug("PTCH 630 found\n"));
134    
135     // Don't replace Time Manager (Classic ROM, 6.0.3)
136     static const uint8 dat[] = {0x30, 0x3c, 0x00, 0x58, 0xa2, 0x47};
137     base = find_rsrc_data(p, size, dat, sizeof(dat));
138     if (base) {
139     p16 = (uint16 *)(p + base);
140     p16[2] = htons(M68K_NOP);
141     p16[7] = htons(M68K_NOP);
142     p16[12] = htons(M68K_NOP);
143     FlushCodeCache(p + base, 26);
144     D(bug(" patch 1 applied\n"));
145     }
146    
147     // Don't replace Time Manager (Classic ROM, 6.0.8)
148     static const uint8 dat2[] = {0x70, 0x58, 0xa2, 0x47};
149     base = find_rsrc_data(p, size, dat2, sizeof(dat2));
150     if (base) {
151     p16 = (uint16 *)(p + base);
152     p16[1] = htons(M68K_NOP);
153     p16[5] = htons(M68K_NOP);
154     p16[9] = htons(M68K_NOP);
155     FlushCodeCache(p + base, 20);
156     D(bug(" patch 1 applied\n"));
157     }
158    
159     } else if (type == 'ptch' && id == 26) {
160     D(bug(" ptch 26 found\n"));
161    
162     // Trap ABC4 is initialized with absolute ROM address (7.5, 7.6, 7.6.1, 8.0)
163     static const uint8 dat[] = {0x40, 0x83, 0x36, 0x10};
164     base = find_rsrc_data(p, size, dat, sizeof(dat));
165     if (base) {
166     p16 = (uint16 *)(p + base);
167     *p16++ = htons((ROMBaseMac + 0x33610) >> 16);
168     *p16 = htons((ROMBaseMac + 0x33610) & 0xffff);
169     FlushCodeCache(p + base, 4);
170     D(bug(" patch 1 applied\n"));
171     }
172    
173     } else if (type == 'ptch' && id == 34) {
174     D(bug(" ptch 34 found\n"));
175    
176     // Don't wait for VIA (Classic ROM, 6.0.8)
177     static const uint8 dat[] = {0x22, 0x78, 0x01, 0xd4, 0x10, 0x11, 0x02, 0x00, 0x00, 0x30};
178     base = find_rsrc_data(p, size, dat, sizeof(dat));
179     if (base) {
180     p16 = (uint16 *)(p + base + 14);
181     *p16 = htons(M68K_NOP);
182     FlushCodeCache(p + base + 14, 2);
183     D(bug(" patch 1 applied\n"));
184     }
185    
186     // Don't replace ADBOp() (Classic ROM, 6.0.8)
187     static const uint8 dat2[] = {0x21, 0xc0, 0x05, 0xf0};
188     base = find_rsrc_data(p, size, dat2, sizeof(dat2));
189     if (base) {
190     p16 = (uint16 *)(p + base);
191     *p16++ = htons(M68K_NOP);
192     *p16 = htons(M68K_NOP);
193     FlushCodeCache(p + base, 4);
194     D(bug(" patch 2 applied\n"));
195     }
196    
197     #if !EMULATED_68K
198     } else if (CPUIs68060 && (type == 'gpch' && id == 669 || type == 'lpch' && id == 63)) {
199     D(bug(" gpch 669/lpch 63 found\n"));
200    
201     static uint16 ThPatchSpace[1024]; // Replacement routines are constructed here
202     uint16 *q = ThPatchSpace;
203     uint32 start;
204     int i;
205    
206     // Patch Thread Manager thread switcher for 68060 FPU (7.5, 8.0)
207     static const uint8 dat[] = {0x22, 0x6f, 0x00, 0x08, 0x20, 0x2f, 0x00, 0x04, 0x67, 0x18};
208     base = find_rsrc_data(p, size, dat, sizeof(dat));
209     if (base) { // Skip first routine (no FPU -> no FPU)
210    
211     base = find_rsrc_data(p, size - base - 2, dat, sizeof(dat), base + 2);
212     if (base) { // no FPU -> FPU
213    
214     p16 = (uint16 *)(p + base);
215     start = (uint32)q;
216     for (i=0; i<28; i++) *q++ = *p16++;
217     *q++ = htons(0x4a2f); // tst.b 2(sp) (null FPU state or "FPU state saved" flag set?)
218     *q++ = htons(2);
219     *q++ = htons(0x6712); // beq
220     *q++ = htons(0x588f); // addq.l #2,sp (flag set, skip it)
221     *q++ = htons(0xf21f); // fmove.l (sp)+,fpcr (restore FPU registers)
222     *q++ = htons(0x9000);
223     *q++ = htons(0xf21f); // fmove.l (sp)+,fpsr
224     *q++ = htons(0x8800);
225     *q++ = htons(0xf21f); // fmove.l (sp)+,fpiar
226     *q++ = htons(0x8400);
227     *q++ = htons(0xf21f); // fmovem.x (sp)+,fp0-fp7
228     *q++ = htons(0xd0ff);
229     *q++ = htons(0xf35f); // frestore (sp)+
230     *q++ = htons(0x4e75); // rts
231    
232     p16 = (uint16 *)(p + base);
233     *p16++ = htons(M68K_JMP);
234     *p16++ = htons(start >> 16);
235     *p16 = htons(start & 0xffff);
236     FlushCodeCache(p + base, 6);
237     D(bug(" patch 1 applied\n"));
238    
239     static const uint8 dat2[] = {0x22, 0x6f, 0x00, 0x08, 0x20, 0x2f, 0x00, 0x04, 0x67, 0x28};
240     base = find_rsrc_data(p, size, dat2, sizeof(dat2));
241     if (base) { // FPU -> FPU
242    
243     p16 = (uint16 *)(p + base);
244     start = (uint32)q;
245     for (i=0; i<4; i++) *q++ = *p16++;
246     *q++ = htons(0x6736); // beq
247     *q++ = htons(0xf327); // fsave -(sp) (save FPU state frame)
248     *q++ = htons(0x4a2f); // tst.b 2(sp) (null FPU state?)
249     *q++ = htons(2);
250     *q++ = htons(0x6716); // beq
251     *q++ = htons(0xf227); // fmovem.x fp0-fp7,-(sp) (no, save FPU registers)
252     *q++ = htons(0xe0ff);
253     *q++ = htons(0xf227); // fmove.l fpiar,-(sp)
254     *q++ = htons(0xa400);
255     *q++ = htons(0xf227); // fmove.l fpsr,-(sp)
256     *q++ = htons(0xa800);
257     *q++ = htons(0xf227); // fmove.l fpcr,-(sp)
258     *q++ = htons(0xb000);
259     *q++ = htons(0x4879); // pea -1 (push "FPU state saved" flag)
260     *q++ = htons(0xffff);
261     *q++ = htons(0xffff);
262     p16 += 9;
263     for (i=0; i<23; i++) *q++ = *p16++;
264     *q++ = htons(0x4a2f); // tst.b 2(sp) (null FPU state or "FPU state saved" flag set?)
265     *q++ = htons(2);
266     *q++ = htons(0x6712); // beq
267     *q++ = htons(0x588f); // addq.l #2,sp (flag set, skip it)
268     *q++ = htons(0xf21f); // fmove.l (sp)+,fpcr (restore FPU registers)
269     *q++ = htons(0x9000);
270     *q++ = htons(0xf21f); // fmove.l (sp)+,fpsr
271     *q++ = htons(0x8800);
272     *q++ = htons(0xf21f); // fmove.l (sp)+,fpiar
273     *q++ = htons(0x8400);
274     *q++ = htons(0xf21f); // fmovem.x (sp)+,fp0-fp7
275     *q++ = htons(0xd0ff);
276     *q++ = htons(0xf35f); // frestore (sp)+
277     *q++ = htons(0x4e75); // rts
278    
279     p16 = (uint16 *)(p + base);
280     *p16++ = htons(M68K_JMP);
281     *p16++ = htons(start >> 16);
282     *p16 = htons(start & 0xffff);
283     FlushCodeCache(p + base, 6);
284     D(bug(" patch 2 applied\n"));
285    
286     base = find_rsrc_data(p, size - base - 2, dat2, sizeof(dat2), base + 2);
287     if (base) { // FPU -> no FPU
288    
289     p16 = (uint16 *)(p + base);
290     start = (uint32)q;
291     for (i=0; i<4; i++) *q++ = *p16++;
292     *q++ = htons(0x6736); // beq
293     *q++ = htons(0xf327); // fsave -(sp) (save FPU state frame)
294     *q++ = htons(0x4a2f); // tst.b 2(sp) (null FPU state?)
295     *q++ = htons(2);
296     *q++ = htons(0x6716); // beq
297     *q++ = htons(0xf227); // fmovem.x fp0-fp7,-(sp) (no, save FPU registers)
298     *q++ = htons(0xe0ff);
299     *q++ = htons(0xf227); // fmove.l fpiar,-(sp)
300     *q++ = htons(0xa400);
301     *q++ = htons(0xf227); // fmove.l fpsr,-(sp)
302     *q++ = htons(0xa800);
303     *q++ = htons(0xf227); // fmove.l fpcr,-(sp)
304     *q++ = htons(0xb000);
305     *q++ = htons(0x4879); // pea -1 (push "FPU state saved" flag)
306     *q++ = htons(0xffff);
307     *q++ = htons(0xffff);
308     p16 += 9;
309     for (i=0; i<24; i++) *q++ = *p16++;
310    
311     p16 = (uint16 *)(p + base);
312     *p16++ = htons(M68K_JMP);
313     *p16++ = htons(start >> 16);
314     *p16 = htons(start & 0xffff);
315     FlushCodeCache(p + base, 6);
316     D(bug(" patch 3 applied\n"));
317     }
318     }
319     }
320     }
321    
322     // Patch Thread Manager thread switcher for 68060 FPU (additional routines under 8.0 for Mixed Mode Manager)
323     static const uint8 dat3[] = {0x22, 0x6f, 0x00, 0x08, 0x20, 0x2f, 0x00, 0x04, 0x67, 0x40};
324     base = find_rsrc_data(p, size, dat3, sizeof(dat3));
325     if (base) { // Skip first routine (no FPU -> no FPU)
326    
327     base = find_rsrc_data(p, size - base - 2, dat3, sizeof(dat3), base + 2);
328     if (base) { // no FPU -> FPU
329    
330     p16 = (uint16 *)(p + base);
331     start = (uint32)q;
332     for (i=0; i<48; i++) *q++ = *p16++;
333     *q++ = htons(0x4a2f); // tst.b 2(sp) (null FPU state or "FPU state saved" flag set?)
334     *q++ = htons(2);
335     *q++ = htons(0x6712); // beq
336     *q++ = htons(0x588f); // addq.l #2,sp (flag set, skip it)
337     *q++ = htons(0xf21f); // fmove.l (sp)+,fpcr (restore FPU registers)
338     *q++ = htons(0x9000);
339     *q++ = htons(0xf21f); // fmove.l (sp)+,fpsr
340     *q++ = htons(0x8800);
341     *q++ = htons(0xf21f); // fmove.l (sp)+,fpiar
342     *q++ = htons(0x8400);
343     *q++ = htons(0xf21f); // fmovem.x (sp)+,fp0-fp7
344     *q++ = htons(0xd0ff);
345     p16 += 7;
346     for (i=0; i<20; i++) *q++ = *p16++;
347    
348     p16 = (uint16 *)(p + base);
349     *p16++ = htons(M68K_JMP);
350     *p16++ = htons(start >> 16);
351     *p16 = htons(start & 0xffff);
352     FlushCodeCache(p + base, 6);
353     D(bug(" patch 4 applied\n"));
354    
355     static const uint8 dat4[] = {0x22, 0x6f, 0x00, 0x08, 0x20, 0x2f, 0x00, 0x04, 0x67, 0x50};
356     base = find_rsrc_data(p, size, dat4, sizeof(dat4));
357     if (base) { // FPU -> FPU
358    
359     p16 = (uint16 *)(p + base);
360     start = (uint32)q;
361     for (i=0; i<4; i++) *q++ = *p16++;
362     *q++ = htons(0x675e); // beq
363     p16++;
364     for (i=0; i<21; i++) *q++ = *p16++;
365     *q++ = htons(0x4a2f); // tst.b 2(sp) (null FPU state?)
366     *q++ = htons(2);
367     *q++ = htons(0x6716); // beq
368     *q++ = htons(0xf227); // fmovem.x fp0-fp7,-(sp) (no, save FPU registers)
369     *q++ = htons(0xe0ff);
370     *q++ = htons(0xf227); // fmove.l fpiar,-(sp)
371     *q++ = htons(0xa400);
372     *q++ = htons(0xf227); // fmove.l fpsr,-(sp)
373     *q++ = htons(0xa800);
374     *q++ = htons(0xf227); // fmove.l fpcr,-(sp)
375     *q++ = htons(0xb000);
376     *q++ = htons(0x4879); // pea -1 (push "FPU state saved" flag)
377     *q++ = htons(0xffff);
378     *q++ = htons(0xffff);
379     p16 += 7;
380     for (i=0; i<23; i++) *q++ = *p16++;
381     *q++ = htons(0x4a2f); // tst.b 2(sp) (null FPU state or "FPU state saved" flag set?)
382     *q++ = htons(2);
383     *q++ = htons(0x6712); // beq
384     *q++ = htons(0x588f); // addq.l #2,sp (flag set, skip it)
385     *q++ = htons(0xf21f); // fmove.l (sp)+,fpcr (restore FPU registers)
386     *q++ = htons(0x9000);
387     *q++ = htons(0xf21f); // fmove.l (sp)+,fpsr
388     *q++ = htons(0x8800);
389     *q++ = htons(0xf21f); // fmove.l (sp)+,fpiar
390     *q++ = htons(0x8400);
391     *q++ = htons(0xf21f); // fmovem.x (sp)+,fp0-fp7
392     *q++ = htons(0xd0ff);
393     p16 += 7;
394     for (i=0; i<20; i++) *q++ = *p16++;
395    
396     p16 = (uint16 *)(p + base);
397     *p16++ = htons(M68K_JMP);
398     *p16++ = htons(start >> 16);
399     *p16 = htons(start & 0xffff);
400     FlushCodeCache(p + base, 6);
401     D(bug(" patch 5 applied\n"));
402    
403     base = find_rsrc_data(p, size - base - 2, dat4, sizeof(dat4), base + 2);
404     if (base) { // FPU -> no FPU
405    
406     p16 = (uint16 *)(p + base);
407     start = (uint32)q;
408     for (i=0; i<4; i++) *q++ = *p16++;
409     *q++ = htons(0x675e); // beq
410     p16++;
411     for (i=0; i<21; i++) *q++ = *p16++;
412     *q++ = htons(0x4a2f); // tst.b 2(sp) (null FPU state?)
413     *q++ = htons(2);
414     *q++ = htons(0x6716); // beq
415     *q++ = htons(0xf227); // fmovem.x fp0-fp7,-(sp) (no, save FPU registers)
416     *q++ = htons(0xe0ff);
417     *q++ = htons(0xf227); // fmove.l fpiar,-(sp)
418     *q++ = htons(0xa400);
419     *q++ = htons(0xf227); // fmove.l fpsr,-(sp)
420     *q++ = htons(0xa800);
421     *q++ = htons(0xf227); // fmove.l fpcr,-(sp)
422     *q++ = htons(0xb000);
423     *q++ = htons(0x4879); // pea -1 (push "FPU state saved" flag)
424     *q++ = htons(0xffff);
425     *q++ = htons(0xffff);
426     p16 += 7;
427     for (i=0; i<42; i++) *q++ = *p16++;
428    
429     p16 = (uint16 *)(p + base);
430     *p16++ = htons(M68K_JMP);
431     *p16++ = htons(start >> 16);
432     *p16 = htons(start & 0xffff);
433     FlushCodeCache(p + base, 6);
434     D(bug(" patch 6 applied\n"));
435     }
436     }
437     }
438     }
439    
440     FlushCodeCache(ThPatchSpace, 1024);
441    
442     // Patch Thread Manager FPU init for 68060 FPU (7.5, 8.0)
443     static const uint8 dat5[] = {0x4a, 0x28, 0x00, 0xa4, 0x67, 0x0a, 0x4a, 0x2c, 0x00, 0x40};
444     base = find_rsrc_data(p, size, dat5, sizeof(dat5));
445     if (base) {
446     p16 = (uint16 *)(p + base + 6);
447     *p16++ = htons(M68K_JSR);
448     *p16++ = htons((uint32)ThInitFPUPatch >> 16);
449     *p16++ = htons((uint32)ThInitFPUPatch & 0xffff);
450     *p16++ = htons(M68K_NOP);
451     *p16 = htons(M68K_NOP);
452     FlushCodeCache(p + base + 6, 10);
453     D(bug(" patch 7 applied\n"));
454     }
455     #endif
456    
457     } else if (type == 'gpch' && id == 750) {
458     D(bug(" gpch 750 found\n"));
459    
460     // Don't use PTEST instruction in BlockMove() (7.5, 7.6, 7.6.1, 8.0)
461     static const uint8 dat[] = {0xa0, 0x8d, 0x0c, 0x81, 0x00, 0x00, 0x0c, 0x00, 0x65, 0x06, 0x4e, 0x71, 0xf4, 0xf8};
462     base = find_rsrc_data(p, size, dat, sizeof(dat));
463     if (base) {
464     p16 = (uint16 *)(p + base + 8);
465     *p16 = htons(M68K_NOP);
466     FlushCodeCache(p + base + 8, 2);
467     D(bug(" patch 1 applied\n"));
468     }
469    
470     } else if (type == 'lpch' && id == 24) {
471     D(bug(" lpch 24 found\n"));
472    
473     // Don't replace Time Manager (7.0.1, 7.1, 7.5, 7.6, 7.6.1, 8.0)
474     static const uint8 dat[] = {0x70, 0x59, 0xa2, 0x47};
475     base = find_rsrc_data(p, size, dat, sizeof(dat));
476     if (base) {
477     p16 = (uint16 *)(p + base + 2);
478     *p16++ = htons(M68K_NOP);
479     p16 += 3;
480     *p16++ = htons(M68K_NOP);
481     p16 += 7;
482     *p16 = htons(M68K_NOP);
483     FlushCodeCache(p + base + 2, 28);
484     D(bug(" patch 1 applied\n"));
485     }
486    
487     } else if (type == 'lpch' && id == 31) {
488     D(bug(" lpch 31 found\n"));
489    
490     // Don't write to VIA in vSoundDead() (7.0.1, 7.1, 7.5, 7.6, 7.6.1, 8.0)
491     static const uint8 dat[] = {0x20, 0x78, 0x01, 0xd4, 0x08, 0xd0, 0x00, 0x07, 0x4e, 0x75};
492     base = find_rsrc_data(p, size, dat, sizeof(dat));
493     if (base) {
494     p16 = (uint16 *)(p + base);
495     *p16 = htons(M68K_RTS);
496     FlushCodeCache(p + base, 2);
497     D(bug(" patch 1 applied\n"));
498     }
499    
500     // Don't replace SCSI manager (7.1, 7.5, 7.6.1, 8.0)
501     static const uint8 dat2[] = {0x0c, 0x6f, 0x00, 0x0e, 0x00, 0x04, 0x66, 0x0c};
502     base = find_rsrc_data(p, size, dat2, sizeof(dat2));
503     if (base) {
504     p16 = (uint16 *)(p + base);
505     *p16++ = htons(M68K_EMUL_OP_SCSI_DISPATCH);
506     *p16++ = htons(0x2e49); // move.l a1,a7
507     *p16 = htons(M68K_JMP_A0);
508     FlushCodeCache(p + base, 6);
509     D(bug(" patch 2 applied\n"));
510     }
511    
512     #if !EMULATED_68K
513     } else if (CPUIs68060 && type == 'scod' && (id == -16463 || id == -16464)) {
514     D(bug(" scod -16463/-16464 found\n"));
515    
516     // Correct 68060 FP frame handling in Process Manager task switches (7.1, 7.5, 8.0)
517     static const uint8 dat[] = {0xf3, 0x27, 0x4a, 0x17};
518     base = find_rsrc_data(p, size, dat, sizeof(dat));
519     if (base) {
520     p16 = (uint16 *)(p + base);
521     *p16++ = htons(M68K_JMP);
522     *p16++ = htons((uint32)Scod060Patch1 >> 16);
523     *p16 = htons((uint32)Scod060Patch1 & 0xffff);
524     FlushCodeCache(p + base, 6);
525     D(bug(" patch 1 applied\n"));
526     }
527    
528     // Even a null FP frame is 3 longwords on the 68060 (7.1, 7.5, 8.0)
529     static const uint8 dat2[] = {0xf3, 0x5f, 0x4e, 0x75};
530     base = find_rsrc_data(p, size, dat2, sizeof(dat2));
531     if (base) {
532     p16 = (uint16 *)(p + base - 2);
533     *p16++ = htons(M68K_JMP);
534     *p16++ = htons((uint32)Scod060Patch2 >> 16);
535     *p16 = htons((uint32)Scod060Patch2 & 0xffff);
536     FlushCodeCache(p + base - 2, 6);
537     D(bug(" patch 2 applied\n"));
538     }
539     #endif
540    
541     } else if (type == 'thng' && id == -16563) {
542     D(bug(" thng -16563 found\n"));
543    
544     // Set audio component flags (7.5, 7.6, 7.6.1, 8.0)
545     *(uint32 *)(p + componentFlags) = htonl(audio_component_flags);
546     D(bug(" patch 1 applied\n"));
547    
548     } else if (type == 'sift' && id == -16563) {
549     D(bug(" sift -16563 found\n"));
550    
551     // Replace audio component (7.5, 7.6, 7.6.1, 8.0)
552     p16 = (uint16 *)p;
553     *p16++ = htons(0x4e56); *p16++ = htons(0x0000); // link a6,#0
554     *p16++ = htons(0x48e7); *p16++ = htons(0x8018); // movem.l d0/a3-a4,-(sp)
555     *p16++ = htons(0x266e); *p16++ = htons(0x000c); // movea.l 12(a6),a3
556     *p16++ = htons(0x286e); *p16++ = htons(0x0008); // movea.l 8(a6),a4
557     *p16++ = htons(M68K_EMUL_OP_AUDIO);
558     *p16++ = htons(0x2d40); *p16++ = htons(0x0010); // move.l d0,16(a6)
559     *p16++ = htons(0x4cdf); *p16++ = htons(0x1801); // movem.l (sp)+,d0/a3-a4
560     *p16++ = htons(0x4e5e); // unlk a6
561     *p16++ = htons(0x4e74); *p16++ = htons(0x0008); // rtd #8
562     FlushCodeCache(p, 32);
563     D(bug(" patch 1 applied\n"));
564    
565     } else if (type == 'inst' && id == -19069) {
566     D(bug(" inst -19069 found\n"));
567    
568     // Don't replace Microseconds (QuickTime 2.0)
569     static const uint8 dat[] = {0x30, 0x3c, 0xa1, 0x93, 0xa2, 0x47};
570     base = find_rsrc_data(p, size, dat, sizeof(dat));
571     if (base) {
572     p16 = (uint16 *)(p + base + 4);
573     *p16 = htons(M68K_NOP);
574     FlushCodeCache(p + base + 4, 2);
575     D(bug(" patch 1 applied\n"));
576     }
577    
578     } else if (type == 'DRVR' && id == -20066) {
579     D(bug("DRVR -20066 found\n"));
580    
581     // Don't access SCC in .Infra driver
582     static const uint8 dat[] = {0x28, 0x78, 0x01, 0xd8, 0x48, 0xc7, 0x20, 0x0c, 0xd0, 0x87, 0x20, 0x40, 0x1c, 0x10};
583     base = find_rsrc_data(p, size, dat, sizeof(dat));
584     if (base) {
585     p16 = (uint16 *)(p + base + 12);
586     *p16 = htons(0x7a00); // moveq #0,d6
587     FlushCodeCache(p + base + 12, 2);
588     D(bug(" patch 1 applied\n"));
589     }
590    
591     } else if (type == 'ltlk' && id == 0) {
592     D(bug(" ltlk 0 found\n"));
593    
594     // Disable LocalTalk (7.0.1, 7.5, 7.6, 7.6.1, 8.0)
595     p16 = (uint16 *)p;
596     *p16++ = htons(M68K_JMP_A0);
597     *p16++ = htons(0x7000);
598     *p16 = htons(M68K_RTS);
599     FlushCodeCache(p, 6);
600     D(bug(" patch 1 applied\n"));
601     }
602     }