/*
 *  rsrc_patches.cpp - Resource patches
 *
 *  SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "sysdeps.h"
#include "rsrc_patches.h"
#include "cpu_emulation.h"
#include "emul_op.h"
#include "xlowmem.h"
#include "macos_util.h"
#include "rom_patches.h"
#include "main.h"
#include "audio.h"

#define DEBUG 0
#include "debug.h"


// Sound input driver
static const uint8 sound_input_driver[] = {	// .AppleSoundInput driver header
	// Driver header
	0x4d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x24,			// Open() offset
	0x00, 0x28,			// Prime() offset
	0x00, 0x2c,			// Control() offset
	0x00, 0x38,			// Status() offset
	0x00, 0x5e,			// Close() offset
	0x10, 0x2e, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x53, 0x6f, 0x75, 0x6e, 0x64, 0x49, 0x6e, 0x70, 0x75, 0x74, 0x00,	// ".AppleSoundInput"

	// Open()
	M68K_EMUL_OP_SOUNDIN_OPEN >> 8, M68K_EMUL_OP_SOUNDIN_OPEN & 0xff,
	0x4e, 0x75,							//	rts

	// Prime()
	M68K_EMUL_OP_SOUNDIN_PRIME >> 8, M68K_EMUL_OP_SOUNDIN_PRIME & 0xff,
	0x60, 0x0e,							//	bra		IOReturn

	// Control()
	M68K_EMUL_OP_SOUNDIN_CONTROL >> 8, M68K_EMUL_OP_SOUNDIN_CONTROL & 0xff,
	0x0c, 0x68, 0x00, 0x01, 0x00, 0x1a,	//	cmp.w	#1,$1a(a0)
	0x66, 0x04,							//	bne		IOReturn
	0x4e, 0x75,							//	rts

	// Status()
	M68K_EMUL_OP_SOUNDIN_STATUS >> 8, M68K_EMUL_OP_SOUNDIN_STATUS & 0xff,

	// IOReturn
	0x32, 0x28, 0x00, 0x06,				//  move.w	6(a0),d1
	0x08, 0x01, 0x00, 0x09,				//  btst		#9,d1
	0x67, 0x0c,							//  beq		1
	0x4a, 0x40,							//  tst.w	d0
	0x6f, 0x02,							//  ble		2
	0x42, 0x40,							//  clr.w	d0
	0x31, 0x40, 0x00, 0x10,				//2 move.w	d0,$10(a0)
	0x4e, 0x75,							//  rts
	0x4a, 0x40,							//1 tst.w	d0
	0x6f, 0x04,							//  ble		3
	0x42, 0x40,							//  clr.w	d0
	0x4e, 0x75,							//  rts
	0x2f, 0x38, 0x08, 0xfc,				//3 move.l	$8fc,-(sp)
	0x4e, 0x75,							//  rts

	// Close()
	M68K_EMUL_OP_SOUNDIN_CLOSE >> 8, M68K_EMUL_OP_SOUNDIN_CLOSE & 0xff,
	0x4e, 0x75,							//	rts
};


/*
 *  Search resource for byte string, return offset (or 0)
 */

static uint32 find_rsrc_data(const uint8 *rsrc, uint32 max, const uint8 *search, uint32 search_len, uint32 ofs = 0)
{
	while (ofs < max - search_len) {
		if (!memcmp(rsrc + ofs, search, search_len))
			return ofs;
		ofs++;
	}
	return 0;
}


/*
 *  Resource patches via vCheckLoad
 */

void CheckLoad(uint32 type, int16 id, uint16 *p, uint32 size)
{
	uint16 *p16;
	uint32 base;
	D(bug("vCheckLoad %c%c%c%c (%08x) ID %d, data %p, size %d\n", type >> 24, (type >> 16) & 0xff, (type >> 8) & 0xff, type & 0xff, type, id, p, size));

	// Don't modify resources in ROM
	if ((uint32)p >= ROM_BASE && (uint32)p <= (ROM_BASE + ROM_SIZE))
		return;

	if (type == FOURCC('b','o','o','t') && id == 3) {
		D(bug("boot 3 found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0x2e49) {
				// Set boot stack pointer (7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1, 8.0, 8.1, 8.5, 8.6)
				p[0] = M68K_EMUL_OP_FIX_BOOTSTACK;
				D(bug(" patch 1 applied\n"));
			} else if (p[0] == 0x4267 && p[1] == 0x3f01 && p[2] == 0x3f2a && p[3] == 0x0006 && p[4] == 0x6100) {
				// Check when ntrb 17 is installed (for native Resource Manager patch) (7.5.3, 7.5.5)
				p[7] = M68K_EMUL_OP_NTRB_17_PATCH3;
				D(bug(" patch 2 applied\n"));
			} else if (p[0] == 0x3f2a && p[1] == 0x0006 && p[2] == 0x3f2a && p[3] == 0x0002 && p[4] == 0x6100) {
				// Check when ntrb 17 is installed (for native Resource Manager patch) (7.6, 7.6.1, 8.0, 8.1)
				p[7] = M68K_EMUL_OP_NTRB_17_PATCH;
				D(bug(" patch 3 applied\n"));
			} else if (p[0] == 0x3f2a && p[1] == 0x0006 && p[2] == 0x3f2a && p[3] == 0x0002 && p[4] == 0x61ff) {
				// Check when ntrb 17 is installed (for native Resource Manager patch) (8.5, 8.6)
				p[8] = M68K_EMUL_OP_NTRB_17_PATCH;
				D(bug(" patch 4 applied\n"));
			} else if (p[0] == 0x0c39 && p[1] == 0x0001 && p[2] == 0xf800 && p[3] == 0x0008 && p[4] == 0x6f00) {
				// Don't read from 0xf8000008 (8.5 with Zanzibar ROM, 8.6)
				p[0] = M68K_NOP;
				p[1] = M68K_NOP;
				p[2] = M68K_NOP;
				p[3] = M68K_NOP;
				p[4] = 0x6000;	// bra
				D(bug(" patch 5 applied\n"));
			} else if (p[0] == 0x2f3c && p[1] == 0x6b72 && p[2] == 0x6e6c && p[3] == 0x4267 && p[4] == 0xa9a0 && p[5] == 0x265f && p[6] == 0x200b && p[7] == 0x6700) {
				// Don't replace nanokernel ("krnl" resource) (8.6)
				p[0] = M68K_NOP;
				p[1] = M68K_NOP;
				p[2] = M68K_NOP;
				p[3] = M68K_NOP;
				p[4] = M68K_NOP;
				p[7] = 0x6000;	// bra
				D(bug(" patch 6 applied\n"));
			} else if (p[0] == 0xa8fe && p[1] == 0x3038 && p[2] == 0x017a && p[3] == 0x0c40 && p[4] == 0x8805 && p[5] == 0x6710) {
				// No SCSI (calls via 0x205c jump vector which is not initialized in NewWorld ROM 1.6) (8.6)
				if (ROMType == ROMTYPE_NEWWORLD) {
					p[5] = 0x6010;	// bra
					D(bug(" patch 7 applied\n"));
				}
			}
			p++;
		}

	} else if (type == FOURCC('g','n','l','d') && id == 0) {
		D(bug("gnld 0 found\n"));

		// Patch native Resource Manager after ntrbs are installed (7.5.2)
		static const uint8 dat[] = {0x4e, 0xba, 0x00, 0x9e, 0x3e, 0x00, 0x50, 0x4f, 0x67, 0x04};
		base = find_rsrc_data((uint8 *)p, size, dat, sizeof(dat));
		if (base) {
			p16 = (uint16 *)((uint32)p + base + 6);
			*p16 = htons(M68K_EMUL_OP_NTRB_17_PATCH2);
			D(bug(" patch 1 applied\n"));
		}

	} else if (type == FOURCC('p','t','c','h') && id == 420) {
		D(bug("ptch 420 found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0xa030 && p[1] == 0x5240 && p[2] == 0x303c && p[3] == 0x0100 && p[4] == 0xc06e && p[5] == 0xfef6) {
				// Disable VM (7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1)
				p[1] = M68K_NOP;
				p[2] = M68K_NOP;
				p[3] = M68K_NOP;
				p[4] = M68K_NOP;
				p[5] = M68K_NOP;
				p[6] = M68K_NOP;
				p[7] = M68K_NOP;
				p[8] = M68K_NOP;
				p[9] = M68K_NOP;
				p[10] = M68K_NOP;
				p[11] = M68K_NOP;
				D(bug(" patch 1 applied\n"));
				break;
			} else if (p[0] == 0xa030 && p[1] == 0x5240 && p[2] == 0x7000 && p[3] == 0x302e && p[4] == 0xfef6 && p[5] == 0x323c && p[6] == 0x0100) {
				// Disable VM (8.0, 8.1)
				p[8] = M68K_NOP;
				p[15] = M68K_NOP;
				D(bug(" patch 2 applied\n"));
				break;
			} else if (p[0] == 0xa030 && p[1] == 0x5240 && p[2] == 0x7000 && p[3] == 0x302e && p[4] == 0xfecc && p[5] == 0x323c && p[6] == 0x0100) {
				// Disable VM (8.5, 8.6)
				p[8] = M68K_NOP;
				p[15] = M68K_NOP;
				D(bug(" patch 3 applied\n"));
				break;
			}
			p++;
		}

	} else if (type == FOURCC('g','p','c','h') && id == 16) {
		D(bug("gpch 16 found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0x6700 && p[13] == 0x7013 && p[14] == 0xfe0a) {
				// Don't call FE0A in Shutdown Manager (7.6.1, 8.0, 8.1, 8.5)
				p[0] = 0x6000;
				D(bug(" patch 1 applied\n"));
				break;
			}
			p++;
		}

	} else if (type == FOURCC('g','p','c','h') && id == 650) {
		D(bug("gpch 650 found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0x6600 && p[1] == 0x001a && p[2] == 0x2278 && p[3] == 0x0134) {
				// We don't have SonyVars (7.5.2)
				p[0] = 0x6000;
				D(bug(" patch 1 applied\n"));
			} else if (p[0] == 0x6618 && p[1] == 0x2278 && p[2] == 0x0134) {
				// We don't have SonyVars (7.5.3)
				p[-6] = M68K_NOP;
				p[-3] = M68K_NOP;
				p[0] = 0x6018;
				D(bug(" patch 2 applied\n"));
			} else if (p[0] == 0x666e && p[1] == 0x2278 && p[2] == 0x0134) {
				// We don't have SonyVars (7.5.5)
				p[-6] = M68K_NOP;
				p[-3] = M68K_NOP;
				p[0] = 0x606e;
				D(bug(" patch 3 applied\n"));
			} else if (p[0] == 0x6400 && p[1] == 0x011c && p[2] == 0x2278 && p[3] == 0x0134) {
				// We don't have SonyVars (7.6.1, 8.0, 8.1, 8.5, 8.6)
				p[0] = 0x6000;
				D(bug(" patch 4 applied\n"));
			} else if (p[0] == 0x6400 && p[1] == 0x00e6 && p[2] == 0x2278 && p[3] == 0x0134) {
				// We don't have SonyVars (7.6)
				p[0] = 0x6000;
				D(bug(" patch 5 applied\n"));
			}
			p++;
		}

	} else if (type == FOURCC('g','p','c','h') && id == 655) {
		D(bug("gpch 655 found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0x83a8 && p[1] == 0x0024 && p[2] == 0x4e71) {
				// Don't write to GC interrupt mask (7.6, 7.6.1, 8.0, 8.1 with Zanzibar ROM)
				p[0] = M68K_NOP;
				p[1] = M68K_NOP;
				D(bug(" patch 1 applied\n"));
			} else if (p[0] == 0x207c && p[1] == 0xf300 && p[2] == 0x0034) {
				// Don't read PowerMac ID (7.6, 7.6.1, 8.0, 8.1 with Zanzibar ROM)
				p[0] = 0x303c;		// move.w #id,d0
				p[1] = 0x3020;
				p[2] = M68K_RTS;
				D(bug(" patch 2 applied\n"));
			} else if (p[0] == 0x13fc && p[1] == 0x0081 && p[2] == 0xf130 && p[3] == 0xa030) {
				// Don't write to hardware (7.6, 7.6.1, 8.0, 8.1 with Zanzibar ROM)
				p[0] = M68K_NOP;
				p[1] = M68K_NOP;
				p[2] = M68K_NOP;
				p[3] = M68K_NOP;
				D(bug(" patch 3 applied\n"));
			} else if (p[0] == 0x4e56 && p[1] == 0x0000 && p[2] == 0x227c && p[3] == 0xf800 && p[4] == 0x0000) {
				// OpenFirmare? (7.6.1, 8.0, 8.1 with Zanzibar ROM)
				p[0] = M68K_RTS;
				D(bug(" patch 4 applied\n"));
			} else if (p[0] == 0x4e56 && p[1] == 0xfffc && p[2] == 0x48e7 && p[3] == 0x0300 && p[4] == 0x598f && p[5] == 0x2eb8 && p[6] == 0x01dc) {
				// Don't write to SCC (7.6.1, 8.0, 8.1 with Zanzibar ROM)
				p[0] = M68K_RTS;
				D(bug(" patch 5 applied\n"));
			} else if (p[0] == 0x4e56 && p[1] == 0x0000 && p[2] == 0x227c && p[3] == 0xf300 && p[4] == 0x0034) {
				// Don't write to GC (7.6.1, 8.0, 8.1 with Zanzibar ROM)
				p[0] = M68K_RTS;
				D(bug(" patch 6 applied\n"));
			} else if (p[0] == 0x40e7 && p[1] == 0x007c && p[2] == 0x0700 && p[3] == 0x48e7 && p[4] == 0x00c0 && p[5] == 0x2078 && p[6] == 0x0dd8 && p[7] == 0xd1e8 && p[8] == 0x0044 && p[9] == 0x8005 && p[11] == 0x93c8 && p[12] == 0x2149 && p[13] == 0x0024) {
				// Don't replace NVRAM routines (7.6, 7.6.1, 8.0, 8.1 with Zanzibar ROM)
				p[0] = M68K_RTS;
				D(bug(" patch 7 applied\n"));
			} else if (p[0] == 0x207c && p[1] == 0x50f1 && p[2] == 0xa101 && (p[3] == 0x08d0 || p[3] == 0x0890)) {
				// Don't write to 0x50f1a101 (8.1 with Zanzibar ROM)
				p[3] = M68K_NOP;
				p[4] = M68K_NOP;
				D(bug(" patch 8 applied\n"));
			}
			p++;
		}

	} else if (type == FOURCC('g','p','c','h') && id == 750) {
		D(bug("gpch 750 found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0xf301 && p[1] == 0x9100 && p[2] == 0x0c11 && p[3] == 0x0044) {
				// Don't read from 0xf3019100 (MACE ENET) (7.6, 7.6.1, 8.0, 8.1)
				p[2] = M68K_NOP;
				p[3] = M68K_NOP;
				p[4] = 0x6026;
				D(bug(" patch 1 applied\n"));
			} else if (p[0] == 0x41e8 && p[1] == 0x0374 && p[2] == 0xfc1e) {
				// Don't call FC1E opcode (7.6, 7.6.1, 8.0, 8.1, 8.5, 8.6)
				p[2] = M68K_NOP;
				D(bug(" patch 2 applied\n"));
			} else if (p[0] == 0x700a && p[1] == 0xfe0a) {
				// Don't call FE0A opcode (7.6, 7.6.1, 8.0, 8.1, 8.5, 8.6)
				p[1] = 0x7000;
				D(bug(" patch 3 applied\n"));
			}
			p++;
		}

	} else if (type == FOURCC('g','p','c','h') && id == 999) {
		D(bug("gpch 999 found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0xf301 && p[1] == 0x9100 && p[2] == 0x0c11 && p[3] == 0x0044) {
				// Don't read from 0xf3019100 (MACE ENET) (8.5, 8.6)
				p[2] = M68K_NOP;
				p[3] = M68K_NOP;
				p[4] = 0x6026;
				D(bug(" patch 1 applied\n"));
			}
			p++;
		}

	} else if (type == FOURCC('g','p','c','h') && id == 3000) {
		D(bug("gpch 3000 found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0xf301 && p[1] == 0x9100 && p[2] == 0x0c11 && p[3] == 0x0044) {
				// Don't read from 0xf3019100 (MACE ENET) (8.1 with NewWorld ROM)
				p[2] = M68K_NOP;
				p[3] = M68K_NOP;
				p[4] = 0x6026;
				D(bug(" patch 1 applied\n"));
			}
			p++;
		}

	} else if (type == FOURCC('l','t','l','k') && id == 0) {
		D(bug("ltlk 0 found\n"));
#if 1
		size >>= 1;
		while (size--) {
			if (p[0] == 0xc2fc && p[1] == 0x0fa0 && p[2] == 0x82c5) {
				// Prevent division by 0 in speed test (7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1, 8.0, 8.1)
				p[2] = 0x7200;
				WriteMacInt32(0x1d8, 0x2c00);
				WriteMacInt32(0x1dc, 0x2c00);
				D(bug(" patch 1 applied\n"));
			} else if (p[0] == 0x1418 && p[1] == 0x84c1) {
				// Prevent division by 0 (7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1, 8.0, 8.1)
				p[1] = 0x7400;
				D(bug(" patch 2 applied\n"));
			} else if (p[0] == 0x2678 && p[1] == 0x01dc && p[2] == 0x3018 && p[3] == 0x6708 && p[4] == 0x1680 && p[5] == 0xe058 && p[6] == 0x1680) {
				// Don't write to SCC (7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1, 8.0, 8.1)
				p[4] = M68K_NOP;
				p[6] = M68K_NOP;
				D(bug(" patch 3 applied\n"));
			} else if (p[0] == 0x2278 && p[1] == 0x01dc && p[2] == 0x12bc && p[3] == 0x0006 && p[4] == 0x4e71 && p[5] == 0x1292) {
				// Don't write to SCC (7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1, 8.0, 8.1)
				p[2] = M68K_NOP;
				p[3] = M68K_NOP;
				p[5] = M68K_NOP;
				D(bug(" patch 4 applied\n"));
			} else if (p[0] == 0x2278 && p[1] == 0x01dc && p[2] == 0x12bc && p[3] == 0x0003 && p[4] == 0x4e71 && p[5] == 0x1281) {
				// Don't write to SCC (7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1, 8.0, 8.1)
				p[2] = M68K_NOP;
				p[3] = M68K_NOP;
				p[5] = M68K_NOP;
				D(bug(" patch 5 applied\n"));
			} else if (p[0] == 0x0811 && p[1] == 0x0000 && p[2] == 0x51c8 && p[3] == 0xfffa) {
				// Don't test SCC (7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1, 8.0, 8.1)
				p[0] = M68K_NOP;
				p[1] = M68K_NOP;
				D(bug(" patch 6 applied\n"));
			} else if (p[0] == 0x4a2a && p[1] == 0x063e && p[2] == 0x66fa) {
				// Don't wait for SCC (7.5.2, 7.5.3, 7.5.5)
				p[2] = M68K_NOP;
				D(bug(" patch 7 applied\n"));
			} else if (p[0] == 0x4a2a && p[1] == 0x03a6 && p[2] == 0x66fa) {
				// Don't wait for SCC (7.6, 7.6.1, 8.0, 8.1)
				p[2] = M68K_NOP;
				D(bug(" patch 8 applied\n"));
			}
			p++;
		}
#else
		// Disable LocalTalk
		p[0] = M68K_JMP_A0;
		p[1] = 0x7000;		// moveq #0,d0
		p[2] = M68K_RTS;
		D(bug(" patch 1 applied\n"));
#endif

	} else if (type == FOURCC('n','s','r','d') && id == 1) {
		D(bug("nsrd 1 found\n"));
		if (p[(0x378 + 0x570) >> 1] == 0x7c08 && p[(0x37a + 0x570) >> 1] == 0x02a6) {
			// Don't overwrite our serial drivers (8.0, 8.1)
			p[(0x378 + 0x570) >> 1] = 0x4e80;		// blr
			p[(0x37a + 0x570) >> 1] = 0x0020;
			D(bug(" patch 1 applied\n"));
		} else if (p[(0x378 + 0x6c0) >> 1] == 0x7c08 && p[(0x37a + 0x6c0) >> 1] == 0x02a6) {
			// Don't overwrite our serial drivers (8.5, 8.6)
			p[(0x378 + 0x6c0) >> 1] = 0x4e80;		// blr
			p[(0x37a + 0x6c0) >> 1] = 0x0020;
			D(bug(" patch 2 applied\n"));
		}

	} else if (type == FOURCC('c','i','t','t') && id == 45) {
		D(bug("citt 45 found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0x203c && p[1] == 0x0100 && p[2] == 0x0000 && p[3] == 0xc0ae && p[4] == 0xfffc) {
				// Don't replace SCSI Manager (8.1, 8.5, 8.6)
				p[5] = (p[5] & 0xff) | 0x6000;		// beq
				D(bug(" patch 1 applied\n"));
				break;
			}
			p++;
		}

	} else if (type == FOURCC('t','h','n','g')) {
		// Collect info about used audio sifters
		uint32 c_type = 0[(uint32 *)p];
		uint32 sub_type = 1[(uint32 *)p];
		if (c_type == FOURCC('s','d','e','v') && sub_type == FOURCC('s','i','n','g')) {
			1[(uint32 *)p] = FOURCC('a','w','g','c');
			D(bug("thng %d, type %c%c%c%c (%08x), sub type %c%c%c%c (%08x), data %p\n", id, c_type >> 24, (c_type >> 16) & 0xff, (c_type >> 8) & 0xff, c_type & 0xff, c_type, sub_type >> 24, (sub_type >> 16) & 0xff, (sub_type >> 8) & 0xff, sub_type & 0xff, sub_type, p));
			AddSifter(*(uint32 *)(((uint32)p)+20), p[12]);
			if (p[28])								// componentPFCount
				AddSifter(*(uint32 *)(((uint32)p)+62), p[33]);
		}

	} else if (type == FOURCC('s','i','f','t') || type == FOURCC('n','i','f','t')) {
		// Patch audio sifters
		if (FindSifter(type, id)) {
			D(bug("sifter found\n"));
			p[0] = 0x4e56; p[1] = 0x0000;	// link a6,#0
			p[2] = 0x48e7; p[3] = 0x8018;	// movem.l d0/a3-a4,-(a7)
			p[4] = 0x266e; p[5] = 0x000c;	// movea.l $c(a6),a3
			p[6] = 0x286e; p[7] = 0x0008;	// movea.l $8(a6),a4
			p[8] = M68K_EMUL_OP_AUDIO_DISPATCH;
			p[9] = 0x2d40; p[10] = 0x0010;	// move.l d0,$10(a6)
			p[11] = 0x4cdf; p[12] = 0x1801;	// movem.l (a7)+,d0/a3-a4
			p[13] = 0x4e5e;					// unlk a6
			p[14] = 0x4e74; p[15] = 0x0008;	// rtd #8
			D(bug(" patch applied\n"));
		}

	} else if (type == FOURCC('D','R','V','R') && (id == -16501 || id == -16500)) {
		D(bug("DRVR -16501/-16500 found\n"));
		// Install sound input driver
		memcpy(p, sound_input_driver, sizeof(sound_input_driver));
		D(bug(" patch 1 applied\n"));

	} else if (type == FOURCC('I','N','I','T') && id == 1 && size == (2416 >> 1)) {
		D(bug("INIT 1 (size 2416) found\n"));
		size >>= 1;
		while (size--) {
			if (p[0] == 0x247c && p[1] == 0xf301 && p[2] == 0x9000) {
				// Prevent "MacOS Licensing Extension" from accessing hardware (7.6)
				p[22] = 0x6028;
				D(bug(" patch 1 applied\n"));
				break;
			}
			p++;
		}
	}
}


/*
 *  Native Resource Manager patches
 */

#ifdef __BEOS__
static
#else
extern "C"
#endif
void check_load_invoc(uint32 type, int16 id, uint16 **h)
{
	if (h == NULL)
		return;
	uint16 *p = *h;
	if (p == NULL)
		return;
	uint32 size = ((uint32 *)p)[-2] & 0xffffff;

	CheckLoad(type, id, p, size);
}

#ifdef __BEOS__
static asm void **get_resource(register uint32 type, register int16 id)
{
	// Create stack frame
	mflr	r0
	stw		r0,8(r1)
	stwu	r1,-(56+12)(r1)

	// Save type/ID
	stw		r3,56(r1)
	stw		r4,56+4(r1)

	// Call old routine
	lwz		r0,XLM_GET_RESOURCE
	lwz		r2,XLM_RES_LIB_TOC
	mtctr	r0
	bctrl
	lwz		r2,XLM_TOC		// Get TOC
	stw		r3,56+8(r1)		// Save handle

	// Call CheckLoad
	lwz		r3,56(r1)
	lwz		r4,56+4(r1)
	lwz		r5,56+8(r1)
	bl		check_load_invoc
	lwz		r3,56+8(r1)		// Restore handle

	// Return to caller
	lwz		r0,56+12+8(r1)
	mtlr	r0
	addi	r1,r1,56+12
	blr
}

static asm void **get_1_resource(register uint32 type, register int16 id)
{
	// Create stack frame
	mflr	r0
	stw		r0,8(r1)
	stwu	r1,-(56+12)(r1)

	// Save type/ID
	stw		r3,56(r1)
	stw		r4,56+4(r1)

	// Call old routine
	lwz		r0,XLM_GET_1_RESOURCE
	lwz		r2,XLM_RES_LIB_TOC
	mtctr	r0
	bctrl
	lwz		r2,XLM_TOC		// Get TOC
	stw		r3,56+8(r1)		// Save handle

	// Call CheckLoad
	lwz		r3,56(r1)
	lwz		r4,56+4(r1)
	lwz		r5,56+8(r1)
	bl		check_load_invoc
	lwz		r3,56+8(r1)		// Restore handle

	// Return to caller
	lwz		r0,56+12+8(r1)
	mtlr	r0
	addi	r1,r1,56+12
	blr
}

static asm void **get_ind_resource(register uint32 type, register int16 index)
{
	// Create stack frame
	mflr	r0
	stw		r0,8(r1)
	stwu	r1,-(56+12)(r1)

	// Save type/index
	stw		r3,56(r1)
	stw		r4,56+4(r1)

	// Call old routine
	lwz		r0,XLM_GET_IND_RESOURCE
	lwz		r2,XLM_RES_LIB_TOC
	mtctr	r0
	bctrl
	lwz		r2,XLM_TOC		// Get TOC
	stw		r3,56+8(r1)		// Save handle

	// Call CheckLoad
	lwz		r3,56(r1)
	lwz		r4,56+4(r1)
	lwz		r5,56+8(r1)
	bl		check_load_invoc
	lwz		r3,56+8(r1)		// Restore handle

	// Return to caller
	lwz		r0,56+12+8(r1)
	mtlr	r0
	addi	r1,r1,56+12
	blr
}

static asm void **get_1_ind_resource(register uint32 type, register int16 index)
{
	// Create stack frame
	mflr	r0
	stw		r0,8(r1)
	stwu	r1,-(56+12)(r1)

	// Save type/index
	stw		r3,56(r1)
	stw		r4,56+4(r1)

	// Call old routine
	lwz		r0,XLM_GET_1_IND_RESOURCE
	lwz		r2,XLM_RES_LIB_TOC
	mtctr	r0
	bctrl
	lwz		r2,XLM_TOC		// Get TOC
	stw		r3,56+8(r1)		// Save handle

	// Call CheckLoad
	lwz		r3,56(r1)
	lwz		r4,56+4(r1)
	lwz		r5,56+8(r1)
	bl		check_load_invoc
	lwz		r3,56+8(r1)		// Restore handle

	// Return to caller
	lwz		r0,56+12+8(r1)
	mtlr	r0
	addi	r1,r1,56+12
	blr
}

static asm void **r_get_resource(register uint32 type, register int16 id)
{
	// Create stack frame
	mflr	r0
	stw		r0,8(r1)
	stwu	r1,-(56+12)(r1)

	// Save type/ID
	stw		r3,56(r1)
	stw		r4,56+4(r1)

	// Call old routine
	lwz		r0,XLM_R_GET_RESOURCE
	lwz		r2,XLM_RES_LIB_TOC
	mtctr	r0
	bctrl
	lwz		r2,XLM_TOC		// Get TOC
	stw		r3,56+8(r1)		// Save handle

	// Call CheckLoad
	lwz		r3,56(r1)
	lwz		r4,56+4(r1)
	lwz		r5,56+8(r1)
	bl		check_load_invoc
	lwz		r3,56+8(r1)		// Restore handle

	// Return to caller
	lwz		r0,56+12+8(r1)
	mtlr	r0
	addi	r1,r1,56+12
	blr
}
#else
// Routines in asm_linux.S
extern "C" void get_resource(void);
extern "C" void get_1_resource(void);
extern "C" void get_ind_resource(void);
extern "C" void get_1_ind_resource(void);
extern "C" void r_get_resource(void);
#endif

void PatchNativeResourceManager(void)
{
	D(bug("PatchNativeResourceManager\n"));

	// Patch native GetResource()
	uint32 **upp = *(uint32 ***)0x1480;
	if (((uint32)upp & 0xffc00000) == ROM_BASE)
		return;
	uint32 *tvec = upp[5];
	D(bug(" GetResource() entry %08x, TOC %08x\n", tvec[0], tvec[1]));
	*(uint32 *)XLM_RES_LIB_TOC = tvec[1];
	*(uint32 *)XLM_GET_RESOURCE = tvec[0];
#ifdef __BEOS__
	uint32 *tvec2 = (uint32 *)get_resource;
	tvec[0] = tvec2[0];
	tvec[1] = tvec2[1];
#else
	tvec[0] = (uint32)get_resource;
#endif

	// Patch native Get1Resource()
	upp = *(uint32 ***)0xe7c;
	tvec = upp[5];
	D(bug(" Get1Resource() entry %08x, TOC %08x\n", tvec[0], tvec[1]));
	*(uint32 *)XLM_GET_1_RESOURCE = tvec[0];
#ifdef __BEOS__
	tvec2 = (uint32 *)get_1_resource;
	tvec[0] = tvec2[0];
	tvec[1] = tvec2[1];
#else
	tvec[0] = (uint32)get_1_resource;
#endif

	// Patch native GetIndResource()
	upp = *(uint32 ***)0x1474;
	tvec = upp[5];
	D(bug(" GetIndResource() entry %08x, TOC %08x\n", tvec[0], tvec[1]));
	*(uint32 *)XLM_GET_IND_RESOURCE = tvec[0];
#ifdef __BEOS__
	tvec2 = (uint32 *)get_ind_resource;
	tvec[0] = tvec2[0];
	tvec[1] = tvec2[1];
#else
	tvec[0] = (uint32)get_ind_resource;
#endif

	// Patch native Get1IndResource()
	upp = *(uint32 ***)0xe38;
	tvec = upp[5];
	D(bug(" Get1IndResource() entry %08x, TOC %08x\n", tvec[0], tvec[1]));
	*(uint32 *)XLM_GET_1_IND_RESOURCE = tvec[0];
#ifdef __BEOS__
	tvec2 = (uint32 *)get_1_ind_resource;
	tvec[0] = tvec2[0];
	tvec[1] = tvec2[1];
#else
	tvec[0] = (uint32)get_1_ind_resource;
#endif

	// Patch native RGetResource()
	upp = *(uint32 ***)0xe30;
	tvec = upp[5];
	D(bug(" RGetResource() entry %08x, TOC %08x\n", tvec[0], tvec[1]));
	*(uint32 *)XLM_R_GET_RESOURCE = tvec[0];
#ifdef __BEOS__
	tvec2 = (uint32 *)r_get_resource;
	tvec[0] = tvec2[0];
	tvec[1] = tvec2[1];
#else
	tvec[0] = (uint32)r_get_resource;
#endif
}