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/* |
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* rsrc_patches.cpp - Resource patches |
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* |
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* Basilisk II (C) 1997-2002 Christian Bauer |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#include <string.h> |
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|
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#include "sysdeps.h" |
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#include "cpu_emulation.h" |
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#include "macos_util.h" |
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#include "main.h" |
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#include "emul_op.h" |
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#include "audio.h" |
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#include "audio_defs.h" |
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#include "rsrc_patches.h" |
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|
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#if ENABLE_MON |
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#include "mon.h" |
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#endif |
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|
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#define DEBUG 0 |
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#include "debug.h" |
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|
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|
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/* |
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* Search resource for byte string, return offset (or 0) |
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*/ |
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|
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static uint32 find_rsrc_data(const uint8 *rsrc, uint32 max, const uint8 *search, uint32 search_len, uint32 ofs = 0) |
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{ |
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while (ofs < max - search_len) { |
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if (!memcmp(rsrc + ofs, search, search_len)) |
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return ofs; |
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ofs++; |
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} |
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return 0; |
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} |
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|
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|
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/* |
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* Resource patches via vCheckLoad |
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*/ |
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|
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void CheckLoad(uint32 type, int16 id, uint8 *p, uint32 size) |
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{ |
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uint16 *p16; |
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uint32 base; |
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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)); |
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|
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if (type == FOURCC('b','o','o','t') && id == 3) { |
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D(bug(" boot 3 found\n")); |
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|
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// Set boot stack pointer (7.5, 7.6, 7.6.1, 8.0) |
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static const uint8 dat[] = {0x22, 0x00, 0xe4, 0x89, 0x90, 0x81, 0x22, 0x40}; |
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base = find_rsrc_data(p, size, dat, sizeof(dat)); |
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if (base) { |
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p16 = (uint16 *)(p + base + 6); |
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*p16 = htons(M68K_EMUL_OP_FIX_BOOTSTACK); |
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FlushCodeCache(p + base + 6, 2); |
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D(bug(" patch 1 applied\n")); |
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} |
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|
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#if !ROM_IS_WRITE_PROTECTED |
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// 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) |
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static const uint8 dat2[] = {0x20, 0x78, 0x02, 0xae, 0xd1, 0xfc, 0x00, 0x01, 0x00, 0x00, 0x21, 0xc8, 0x00, 0x00}; |
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base = find_rsrc_data(p, size, dat2, sizeof(dat2)); |
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if (base) { |
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p16 = (uint16 *)(p + base); |
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|
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#if defined(USE_SCRATCHMEM_SUBTERFUGE) |
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// Set 0x0000 to scratch memory area |
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extern uint8 *ScratchMem; |
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const uint32 ScratchMemBase = Host2MacAddr(ScratchMem); |
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*p16++ = htons(0x207c); // move.l #ScratchMem,a0 |
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*p16++ = htons(ScratchMemBase >> 16); |
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*p16++ = htons(ScratchMemBase); |
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*p16++ = htons(M68K_NOP); |
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*p16 = htons(M68K_NOP); |
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#else |
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#error System specific handling for writable ROM is required here |
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#endif |
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FlushCodeCache(p + base, 14); |
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D(bug(" patch 2 applied\n")); |
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} |
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|
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} else if (type == FOURCC('b','o','o','t') && id == 2) { |
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D(bug(" boot 2 found\n")); |
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|
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// 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) |
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static const uint8 dat[] = {0x20, 0x78, 0x02, 0xae, 0xd1, 0xfc, 0x00, 0x01, 0x00, 0x00, 0x21, 0xc8, 0x00, 0x00}; |
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base = find_rsrc_data(p, size, dat, sizeof(dat)); |
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if (base) { |
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p16 = (uint16 *)(p + base); |
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|
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#if defined(USE_SCRATCHMEM_SUBTERFUGE) |
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// Set 0x0000 to scratch memory area |
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extern uint8 *ScratchMem; |
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const uint32 ScratchMemBase = Host2MacAddr(ScratchMem); |
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*p16++ = htons(0x207c); // move.l #ScratchMem,a0 |
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*p16++ = htons(ScratchMemBase >> 16); |
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*p16++ = htons(ScratchMemBase); |
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*p16++ = htons(M68K_NOP); |
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*p16 = htons(M68K_NOP); |
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#else |
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#error System specific handling for writable ROM is required here |
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#endif |
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FlushCodeCache(p + base, 14); |
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D(bug(" patch 1 applied\n")); |
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} |
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#endif |
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|
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} else if (type == FOURCC('P','T','C','H') && id == 630) { |
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D(bug("PTCH 630 found\n")); |
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|
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// Don't replace Time Manager (Classic ROM, 6.0.3) |
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static const uint8 dat[] = {0x30, 0x3c, 0x00, 0x58, 0xa2, 0x47}; |
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base = find_rsrc_data(p, size, dat, sizeof(dat)); |
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if (base) { |
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p16 = (uint16 *)(p + base); |
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p16[2] = htons(M68K_NOP); |
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p16[7] = htons(M68K_NOP); |
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p16[12] = htons(M68K_NOP); |
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FlushCodeCache(p + base, 26); |
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D(bug(" patch 1 applied\n")); |
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} |
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|
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// Don't replace Time Manager (Classic ROM, 6.0.8) |
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static const uint8 dat2[] = {0x70, 0x58, 0xa2, 0x47}; |
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base = find_rsrc_data(p, size, dat2, sizeof(dat2)); |
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if (base) { |
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p16 = (uint16 *)(p + base); |
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p16[1] = htons(M68K_NOP); |
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p16[5] = htons(M68K_NOP); |
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p16[9] = htons(M68K_NOP); |
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FlushCodeCache(p + base, 20); |
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D(bug(" patch 1 applied\n")); |
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} |
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|
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} else if (type == FOURCC('p','t','c','h') && id == 26) { |
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D(bug(" ptch 26 found\n")); |
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|
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// Trap ABC4 is initialized with absolute ROM address (7.1, 7.5, 7.6, 7.6.1, 8.0) |
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static const uint8 dat[] = {0x40, 0x83, 0x36, 0x10}; |
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base = find_rsrc_data(p, size, dat, sizeof(dat)); |
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if (base) { |
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p16 = (uint16 *)(p + base); |
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*p16++ = htons((ROMBaseMac + 0x33610) >> 16); |
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*p16 = htons((ROMBaseMac + 0x33610) & 0xffff); |
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FlushCodeCache(p + base, 4); |
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D(bug(" patch 1 applied\n")); |
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} |
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|
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} else if (type == FOURCC('p','t','c','h') && id == 34) { |
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D(bug(" ptch 34 found\n")); |
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|
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// Don't wait for VIA (Classic ROM, 6.0.8) |
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static const uint8 dat[] = {0x22, 0x78, 0x01, 0xd4, 0x10, 0x11, 0x02, 0x00, 0x00, 0x30}; |
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base = find_rsrc_data(p, size, dat, sizeof(dat)); |
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if (base) { |
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p16 = (uint16 *)(p + base + 14); |
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*p16 = htons(M68K_NOP); |
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FlushCodeCache(p + base + 14, 2); |
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D(bug(" patch 1 applied\n")); |
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} |
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|
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// Don't replace ADBOp() (Classic ROM, 6.0.8) |
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static const uint8 dat2[] = {0x21, 0xc0, 0x05, 0xf0}; |
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base = find_rsrc_data(p, size, dat2, sizeof(dat2)); |
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if (base) { |
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p16 = (uint16 *)(p + base); |
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*p16++ = htons(M68K_NOP); |
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*p16 = htons(M68K_NOP); |
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FlushCodeCache(p + base, 4); |
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D(bug(" patch 2 applied\n")); |
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} |
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|
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} else if (type == FOURCC('g','p','c','h') && id == 750) { |
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D(bug(" gpch 750 found\n")); |
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|
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// Don't use PTEST instruction in BlockMove() (7.5, 7.6, 7.6.1, 8.0) |
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static const uint8 dat[] = {0x20, 0x5f, 0x22, 0x5f, 0x0c, 0x38, 0x00, 0x04, 0x01, 0x2f}; |
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base = find_rsrc_data(p, size, dat, sizeof(dat)); |
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if (base) { |
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p16 = (uint16 *)(p + base + 4); |
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*p16++ = htons(M68K_EMUL_OP_BLOCK_MOVE); |
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*p16++ = htons(0x7000); |
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*p16 = htons(M68K_RTS); |
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FlushCodeCache(p + base + 4, 6); |
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D(bug(" patch 1 applied\n")); |
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} |
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|
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} else if (type == FOURCC('l','p','c','h') && id == 24) { |
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D(bug(" lpch 24 found\n")); |
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|
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// Don't replace Time Manager (7.0.1, 7.1, 7.5, 7.6, 7.6.1, 8.0) |
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static const uint8 dat[] = {0x70, 0x59, 0xa2, 0x47}; |
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base = find_rsrc_data(p, size, dat, sizeof(dat)); |
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if (base) { |
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p16 = (uint16 *)(p + base + 2); |
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*p16++ = htons(M68K_NOP); |
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p16 += 3; |
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*p16++ = htons(M68K_NOP); |
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p16 += 7; |
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*p16 = htons(M68K_NOP); |
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FlushCodeCache(p + base + 2, 28); |
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D(bug(" patch 1 applied\n")); |
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} |
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|
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} else if (type == FOURCC('l','p','c','h') && id == 31) { |
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D(bug(" lpch 31 found\n")); |
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|
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// Don't write to VIA in vSoundDead() (7.0.1, 7.1, 7.5, 7.6, 7.6.1, 8.0) |
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static const uint8 dat[] = {0x20, 0x78, 0x01, 0xd4, 0x08, 0xd0, 0x00, 0x07, 0x4e, 0x75}; |
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base = find_rsrc_data(p, size, dat, sizeof(dat)); |
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if (base) { |
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p16 = (uint16 *)(p + base); |
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*p16 = htons(M68K_RTS); |
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FlushCodeCache(p + base, 2); |
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D(bug(" patch 1 applied\n")); |
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} |
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|
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// Don't replace SCSI manager (7.1, 7.5, 7.6.1, 8.0) |
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static const uint8 dat2[] = {0x0c, 0x6f, 0x00, 0x0e, 0x00, 0x04, 0x66, 0x0c}; |
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base = find_rsrc_data(p, size, dat2, sizeof(dat2)); |
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if (base) { |
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p16 = (uint16 *)(p + base); |
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*p16++ = htons(M68K_EMUL_OP_SCSI_DISPATCH); |
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*p16++ = htons(0x2e49); // move.l a1,a7 |
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*p16 = htons(M68K_JMP_A0); |
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FlushCodeCache(p + base, 6); |
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D(bug(" patch 2 applied\n")); |
| 247 |
} |
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|
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} else if (type == FOURCC('t','h','n','g') && id == -16563) { |
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D(bug(" thng -16563 found\n")); |
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|
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// Set audio component flags (7.5, 7.6, 7.6.1, 8.0) |
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*(uint32 *)(p + componentFlags) = htonl(audio_component_flags); |
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D(bug(" patch 1 applied\n")); |
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|
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} else if (type == FOURCC('s','i','f','t') && id == -16563) { |
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D(bug(" sift -16563 found\n")); |
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|
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// Replace audio component (7.5, 7.6, 7.6.1, 8.0) |
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p16 = (uint16 *)p; |
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*p16++ = htons(0x4e56); *p16++ = htons(0x0000); // link a6,#0 |
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*p16++ = htons(0x48e7); *p16++ = htons(0x8018); // movem.l d0/a3-a4,-(sp) |
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*p16++ = htons(0x266e); *p16++ = htons(0x000c); // movea.l 12(a6),a3 |
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*p16++ = htons(0x286e); *p16++ = htons(0x0008); // movea.l 8(a6),a4 |
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*p16++ = htons(M68K_EMUL_OP_AUDIO); |
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*p16++ = htons(0x2d40); *p16++ = htons(0x0010); // move.l d0,16(a6) |
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*p16++ = htons(0x4cdf); *p16++ = htons(0x1801); // movem.l (sp)+,d0/a3-a4 |
| 268 |
*p16++ = htons(0x4e5e); // unlk a6 |
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*p16++ = htons(0x4e74); *p16++ = htons(0x0008); // rtd #8 |
| 270 |
FlushCodeCache(p, 32); |
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D(bug(" patch 1 applied\n")); |
| 272 |
|
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} else if (type == FOURCC('i','n','s','t') && id == -19069) { |
| 274 |
D(bug(" inst -19069 found\n")); |
| 275 |
|
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// Don't replace Microseconds (QuickTime 2.0) |
| 277 |
static const uint8 dat[] = {0x30, 0x3c, 0xa1, 0x93, 0xa2, 0x47}; |
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base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 279 |
if (base) { |
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p16 = (uint16 *)(p + base + 4); |
| 281 |
*p16 = htons(M68K_NOP); |
| 282 |
FlushCodeCache(p + base + 4, 2); |
| 283 |
D(bug(" patch 1 applied\n")); |
| 284 |
} |
| 285 |
|
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} else if (type == FOURCC('D','R','V','R') && id == -20066) { |
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D(bug("DRVR -20066 found\n")); |
| 288 |
|
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// Don't access SCC in .Infra driver |
| 290 |
static const uint8 dat[] = {0x28, 0x78, 0x01, 0xd8, 0x48, 0xc7, 0x20, 0x0c, 0xd0, 0x87, 0x20, 0x40, 0x1c, 0x10}; |
| 291 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 292 |
if (base) { |
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p16 = (uint16 *)(p + base + 12); |
| 294 |
*p16 = htons(0x7a00); // moveq #0,d6 |
| 295 |
FlushCodeCache(p + base + 12, 2); |
| 296 |
D(bug(" patch 1 applied\n")); |
| 297 |
} |
| 298 |
|
| 299 |
} else if (type == FOURCC('l','t','l','k') && id == 0) { |
| 300 |
D(bug(" ltlk 0 found\n")); |
| 301 |
|
| 302 |
// Disable LocalTalk (7.0.1, 7.5, 7.6, 7.6.1, 8.0) |
| 303 |
p16 = (uint16 *)p; |
| 304 |
*p16++ = htons(M68K_JMP_A0); |
| 305 |
*p16++ = htons(0x7000); |
| 306 |
*p16 = htons(M68K_RTS); |
| 307 |
FlushCodeCache(p, 6); |
| 308 |
D(bug(" patch 1 applied\n")); |
| 309 |
} |
| 310 |
#if REAL_ADDRESSING && !defined(AMIGA) |
| 311 |
else if (type == FOURCC('D','R','V','R') && id == 41) { |
| 312 |
D(bug(" DRVR 41 found\n")); |
| 313 |
|
| 314 |
// gb-- [0x28E (ROM85)] contains 0x3fff that will be placed into a0 |
| 315 |
// Seems to be caused by the AppleShare extension from MacOS 8.1 (3.7.4) |
| 316 |
// .AFPTranslator (DRVR addr 0x2372) |
| 317 |
static const uint8 dat[] = {0x3a, 0x2e, 0x00, 0x0a, 0x55, 0x4f, 0x3e, 0xb8, 0x02, 0x8e, 0x30, 0x1f, 0x48, 0xc0, 0x24, 0x40, 0x20, 0x40}; |
| 318 |
base = find_rsrc_data(p, size, dat, sizeof(dat)); |
| 319 |
if (base) { |
| 320 |
p16 = (uint16 *)(p + base + 4); |
| 321 |
*p16++ = htons(0x3078); // movea.w ROM85,%a0 |
| 322 |
*p16++ = htons(0x028e); |
| 323 |
*p16++ = htons(0xd1fc); // adda.l #RAMBaseMac,%a0 |
| 324 |
*p16++ = htons((RAMBaseMac >> 16) & 0xffff); |
| 325 |
*p16++ = htons(RAMBaseMac & 0xffff); |
| 326 |
*p16++ = htons(0x2448); // movea.l %a0,%a2 |
| 327 |
*p16++ = htons(M68K_NOP); |
| 328 |
FlushCodeCache(p + base + 4, 14); |
| 329 |
D(bug(" patch 1 applied\n")); |
| 330 |
} |
| 331 |
} |
| 332 |
#endif |
| 333 |
} |
