[pcsx_rearmed.git] / libpcsxcore / psxmem.c

/***************************************************************************
 *   Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team              *
 *                                                                         *
 *   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.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
 ***************************************************************************/

/*
* PSX memory functions.
*/

// TODO: Implement caches & cycle penalty.

#include "psxmem.h"
#include "psxmem_map.h"
#include "r3000a.h"
#include "psxhw.h"
//#include "debug.h"
#define DebugCheckBP(...)

#include "lightrec/mem.h"
#include "memmap.h"

#ifdef USE_LIBRETRO_VFS
#include <streams/file_stream_transforms.h>
#endif

#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif

static void * psxMapDefault(unsigned long addr, size_t size,
			    int is_fixed, enum psxMapTag tag)
{
#if !HAVE_MMAP
	void *ptr;

	ptr = malloc(size);
	return ptr ? ptr : MAP_FAILED;
#else
	int flags = MAP_PRIVATE | MAP_ANONYMOUS;

	return mmap((void *)(uintptr_t)addr, size,
		    PROT_READ | PROT_WRITE, flags, -1, 0);
#endif
}

static void psxUnmapDefault(void *ptr, size_t size, enum psxMapTag tag)
{
#if !HAVE_MMAP
	free(ptr);
#else
	munmap(ptr, size);
#endif
}

void *(*psxMapHook)(unsigned long addr, size_t size, int is_fixed,
		enum psxMapTag tag) = psxMapDefault;
void (*psxUnmapHook)(void *ptr, size_t size,
		     enum psxMapTag tag) = psxUnmapDefault;

void *psxMap(unsigned long addr, size_t size, int is_fixed,
		enum psxMapTag tag)
{
	int try_ = 0;
	unsigned long mask;
	void *ret;

retry:
	ret = psxMapHook(addr, size, 0, tag);
	if (ret == NULL)
		return MAP_FAILED;

	if (addr != 0 && ret != (void *)(uintptr_t)addr) {
		SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
			addr, ret);

		if (is_fixed) {
			psxUnmap(ret, size, tag);
			return MAP_FAILED;
		}

		if (((addr ^ (unsigned long)(uintptr_t)ret) & ~0xff000000l) && try_ < 2)
		{
			psxUnmap(ret, size, tag);

			// try to use similarly aligned memory instead
			// (recompiler needs this)
			mask = try_ ? 0xffff : 0xffffff;
			addr = ((uintptr_t)ret + mask) & ~mask;
			try_++;
			goto retry;
		}
	}

	return ret;
}

void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
{
	psxUnmapHook(ptr, size, tag);
}

s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
s8 *psxP = NULL; // Parallel Port (64K)
s8 *psxR = NULL; // BIOS ROM (512K)
s8 *psxH = NULL; // Scratch Pad (1K) & Hardware Registers (8K)

u8 **psxMemWLUT = NULL;
u8 **psxMemRLUT = NULL;

/*  Playstation Memory Map (from Playstation doc by Joshua Walker)
0x0000_0000-0x0000_ffff		Kernel (64K)
0x0001_0000-0x001f_ffff		User Memory (1.9 Meg)

0x1f00_0000-0x1f00_ffff		Parallel Port (64K)

0x1f80_0000-0x1f80_03ff		Scratch Pad (1024 bytes)

0x1f80_1000-0x1f80_2fff		Hardware Registers (8K)

0x1fc0_0000-0x1fc7_ffff		BIOS (512K)

0x8000_0000-0x801f_ffff		Kernel and User Memory Mirror (2 Meg) Cached
0x9fc0_0000-0x9fc7_ffff		BIOS Mirror (512K) Cached

0xa000_0000-0xa01f_ffff		Kernel and User Memory Mirror (2 Meg) Uncached
0xbfc0_0000-0xbfc7_ffff		BIOS Mirror (512K) Uncached
*/

static int psxMemInitMap(void)
{
	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
	if (psxM == MAP_FAILED)
		psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
	if (psxM == MAP_FAILED) {
		SysMessage(_("mapping main RAM failed"));
		psxM = NULL;
		return -1;
	}
	psxP = &psxM[0x200000];

	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
	if (psxH == MAP_FAILED) {
		SysMessage(_("Error allocating memory!"));
		psxMemShutdown();
		return -1;
	}

	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
	if (psxR == MAP_FAILED) {
		SysMessage(_("Error allocating memory!"));
		psxMemShutdown();
		return -1;
	}

	return 0;
}

static void psxMemFreeMap(void)
{
	if (psxM) psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
	if (psxH) psxUnmap(psxH, 0x10000, MAP_TAG_OTHER);
	if (psxR) psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
	psxM = psxH = psxR = NULL;
	psxP = NULL;
}

int psxMemInit(void)
{
	unsigned int i;
	int ret;

	if (LIGHTREC_CUSTOM_MAP)
		ret = lightrec_init_mmap();
	else
		ret = psxMemInitMap();
	if (ret) {
		SysMessage(_("Error allocating memory!"));
		psxMemShutdown();
		return -1;
	}

	psxMemRLUT = (u8 **)malloc(0x10000 * sizeof(void *));
	psxMemWLUT = (u8 **)malloc(0x10000 * sizeof(void *));

	if (psxMemRLUT == NULL || psxMemWLUT == NULL) {
		SysMessage(_("Error allocating memory!"));
		psxMemShutdown();
		return -1;
	}

	memset(psxMemRLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
	memset(psxMemWLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));

// MemR
	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];

	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));

	psxMemRLUT[0x1f00] = (u8 *)psxP;
	psxMemRLUT[0x1f80] = (u8 *)psxH;

	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];

	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));

// MemW
	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];

	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));

	// Don't allow writes to PIO Expansion region (psxP) to take effect.
	// NOTE: Not sure if this is needed to fix any games but seems wise,
	//       seeing as some games do read from PIO as part of copy-protection
	//       check. (See fix in psxMemReset() regarding psxP region reads).
	psxMemWLUT[0x1f00] = INVALID_PTR;
	psxMemWLUT[0x1f80] = (u8 *)psxH;

	return 0;
}

void psxMemReset() {
	FILE *f = NULL;
	char bios[1024];

	memset(psxM, 0, 0x00200000);
	memset(psxP, 0xff, 0x00010000);

	Config.HLE = TRUE;

	if (strcmp(Config.Bios, "HLE") != 0) {
		sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
		f = fopen(bios, "rb");

		if (f == NULL) {
			SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
			memset(psxR, 0, 0x80000);
		} else {
			if (fread(psxR, 1, 0x80000, f) == 0x80000) {
				Config.HLE = FALSE;
			} else {
				SysMessage(_("The selected BIOS:\"%s\" is of wrong size. Enabling HLE Bios!\n"), bios);
			}
			fclose(f);
		}
	}
}

void psxMemShutdown() {
	if (LIGHTREC_CUSTOM_MAP)
		lightrec_free_mmap();
	else
		psxMemFreeMap();

	free(psxMemRLUT); psxMemRLUT = NULL;
	free(psxMemWLUT); psxMemWLUT = NULL;
}

void psxMemOnIsolate(int enable)
{
	if (enable) {
		memset(psxMemWLUT + 0x0000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
		memset(psxMemWLUT + 0x8000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
		//memset(psxMemWLUT + 0xa000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
	} else {
		int i;
		for (i = 0; i < 0x80; i++)
			psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
		memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
		memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	}
	psxCpu->Notify(enable ? R3000ACPU_NOTIFY_CACHE_ISOLATED
			: R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
}

u8 psxMemRead8(u32 mem) {
	char *p;
	u32 t;

	t = mem >> 16;
	if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
		if ((mem & 0xffff) < 0x400)
			return psxHu8(mem);
		else
			return psxHwRead8(mem);
	} else {
		p = (char *)(psxMemRLUT[t]);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, R1);
			return *(u8 *)(p + (mem & 0xffff));
		} else {
#ifdef PSXMEM_LOG
			PSXMEM_LOG("err lb %8.8lx\n", mem);
#endif
			return 0xFF;
		}
	}
}

u16 psxMemRead16(u32 mem) {
	char *p;
	u32 t;

	t = mem >> 16;
	if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
		if ((mem & 0xffff) < 0x400)
			return psxHu16(mem);
		else
			return psxHwRead16(mem);
	} else {
		p = (char *)(psxMemRLUT[t]);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, R2);
			return SWAPu16(*(u16 *)(p + (mem & 0xffff)));
		} else {
#ifdef PSXMEM_LOG
			PSXMEM_LOG("err lh %8.8lx\n", mem);
#endif
			return 0xFFFF;
		}
	}
}

u32 psxMemRead32(u32 mem) {
	char *p;
	u32 t;

	t = mem >> 16;
	if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
		if ((mem & 0xffff) < 0x400)
			return psxHu32(mem);
		else
			return psxHwRead32(mem);
	} else {
		p = (char *)(psxMemRLUT[t]);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, R4);
			return SWAPu32(*(u32 *)(p + (mem & 0xffff)));
		} else {
			if (mem == 0xfffe0130)
				return psxRegs.biuReg;
#ifdef PSXMEM_LOG
			PSXMEM_LOG("err lw %8.8lx\n", mem);
#endif
			return 0xFFFFFFFF;
		}
	}
}

void psxMemWrite8(u32 mem, u8 value) {
	char *p;
	u32 t;

	t = mem >> 16;
	if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
		if ((mem & 0xffff) < 0x400)
			psxHu8(mem) = value;
		else
			psxHwWrite8(mem, value);
	} else {
		p = (char *)(psxMemWLUT[t]);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, W1);
			*(u8 *)(p + (mem & 0xffff)) = value;
#ifndef DRC_DISABLE
			psxCpu->Clear((mem & (~3)), 1);
#endif
		} else {
#ifdef PSXMEM_LOG
			PSXMEM_LOG("err sb %8.8lx\n", mem);
#endif
		}
	}
}

void psxMemWrite16(u32 mem, u16 value) {
	char *p;
	u32 t;

	t = mem >> 16;
	if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
		if ((mem & 0xffff) < 0x400)
			psxHu16ref(mem) = SWAPu16(value);
		else
			psxHwWrite16(mem, value);
	} else {
		p = (char *)(psxMemWLUT[t]);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, W2);
			*(u16 *)(p + (mem & 0xffff)) = SWAPu16(value);
#ifndef DRC_DISABLE
			psxCpu->Clear((mem & (~3)), 1);
#endif
		} else {
#ifdef PSXMEM_LOG
			PSXMEM_LOG("err sh %8.8lx\n", mem);
#endif
		}
	}
}

void psxMemWrite32(u32 mem, u32 value) {
	char *p;
	u32 t;

//	if ((mem&0x1fffff) == 0x71E18 || value == 0x48088800) SysPrintf("t2fix!!\n");
	t = mem >> 16;
	if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
		if ((mem & 0xffff) < 0x400)
			psxHu32ref(mem) = SWAPu32(value);
		else
			psxHwWrite32(mem, value);
	} else {
		p = (char *)(psxMemWLUT[t]);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, W4);
			*(u32 *)(p + (mem & 0xffff)) = SWAPu32(value);
#ifndef DRC_DISABLE
			psxCpu->Clear(mem, 1);
#endif
		} else {
			if (mem == 0xfffe0130) {
				psxRegs.biuReg = value;
				return;
			}
#ifdef PSXMEM_LOG
			PSXMEM_LOG("err sw %8.8lx\n", mem);
#endif
		}
	}
}

void *psxMemPointer(u32 mem) {
	char *p;
	u32 t;

	t = mem >> 16;
	if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
		if ((mem & 0xffff) < 0x400)
			return (void *)&psxH[mem];
		else
			return NULL;
	} else {
		p = (char *)(psxMemWLUT[t]);
		if (p != INVALID_PTR) {
			return (void *)(p + (mem & 0xffff));
		}
		return NULL;
	}
}
Commit	Line	Data
ef79bbde P	1	/***************************************************************************
	2	* Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
	3	* *
	4	* This program is free software; you can redistribute it and/or modify *
	5	* it under the terms of the GNU General Public License as published by *
	6	* the Free Software Foundation; either version 2 of the License, or *
	7	* (at your option) any later version. *
	8	* *
	9	* This program is distributed in the hope that it will be useful, *
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
	12	* GNU General Public License for more details. *
	13	* *
	14	* You should have received a copy of the GNU General Public License *
	15	* along with this program; if not, write to the *
	16	* Free Software Foundation, Inc., *
	17	* 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
	18	***************************************************************************/
	19
	20	/*
	21	* PSX memory functions.
	22	*/
	23
	24	// TODO: Implement caches & cycle penalty.
	25
	26	#include "psxmem.h"
87e5b45f	27	#include "psxmem_map.h"
ef79bbde P	28	#include "r3000a.h"
ef79bbde P	29	#include "psxhw.h"
7d7672a5	30	//#include "debug.h"
7d7672a5	31	#define DebugCheckBP(...)
ce0e7ac9	32
7a8d521f	33	#include "lightrec/mem.h"
ce0e7ac9	34	#include "memmap.h"
ef79bbde	35
7a8d521f	36	#ifdef USE_LIBRETRO_VFS
	37	#include <streams/file_stream_transforms.h>
	38	#endif
	39
ef79bbde P	40	#ifndef MAP_ANONYMOUS
	41	#define MAP_ANONYMOUS MAP_ANON
	42	#endif
	43
826ba56b PC	44	static void * psxMapDefault(unsigned long addr, size_t size,
	45	int is_fixed, enum psxMapTag tag)
	46	{
5e282df8 PC	47	#if !HAVE_MMAP
	48	void *ptr;
	49
	50	ptr = malloc(size);
	51	return ptr ? ptr : MAP_FAILED;
	52	#else
826ba56b PC	53	int flags = MAP_PRIVATE \| MAP_ANONYMOUS;
	54
	55	return mmap((void *)(uintptr_t)addr, size,
	56	PROT_READ \| PROT_WRITE, flags, -1, 0);
5e282df8	57	#endif
826ba56b PC	58	}
	59
	60	static void psxUnmapDefault(void *ptr, size_t size, enum psxMapTag tag)
	61	{
5e282df8 PC	62	#if !HAVE_MMAP
	63	free(ptr);
	64	#else
826ba56b	65	munmap(ptr, size);
5e282df8	66	#endif
826ba56b PC	67	}
826ba56b PC	68
87e5b45f	69	void (psxMapHook)(unsigned long addr, size_t size, int is_fixed,
826ba56b PC	70	enum psxMapTag tag) = psxMapDefault;
	71	void (psxUnmapHook)(void ptr, size_t size,
	72	enum psxMapTag tag) = psxUnmapDefault;
87e5b45f	73
	74	void *psxMap(unsigned long addr, size_t size, int is_fixed,
	75	enum psxMapTag tag)
	76	{
5644b26c	77	int try_ = 0;
b0dd9956	78	unsigned long mask;
826ba56b	79	void *ret;
87e5b45f	80
b0dd9956	81	retry:
826ba56b PC	82	ret = psxMapHook(addr, size, 0, tag);
	83	if (ret == NULL)
	84	return MAP_FAILED;
87e5b45f	85
77e1e479	86	if (addr != 0 && ret != (void *)(uintptr_t)addr) {
b0dd9956	87	SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
	88	addr, ret);
	89
0069615f	90	if (is_fixed) {
0069615f	91	psxUnmap(ret, size, tag);
7a8d521f	92	return MAP_FAILED;
0069615f	93	}
0069615f	94
77e1e479	95	if (((addr ^ (unsigned long)(uintptr_t)ret) & ~0xff000000l) && try_ < 2)
b0dd9956	96	{
	97	psxUnmap(ret, size, tag);
	98
	99	// try to use similarly aligned memory instead
	100	// (recompiler needs this)
5644b26c	101	mask = try_ ? 0xffff : 0xffffff;
77e1e479	102	addr = ((uintptr_t)ret + mask) & ~mask;
5644b26c	103	try_++;
b0dd9956	104	goto retry;
	105	}
	106	}
87e5b45f	107
	108	return ret;
	109	}
	110
	111	void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
	112	{
826ba56b	113	psxUnmapHook(ptr, size, tag);
87e5b45f	114	}
87e5b45f	115
ef79bbde P	116	s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
	117	s8 *psxP = NULL; // Parallel Port (64K)
	118	s8 *psxR = NULL; // BIOS ROM (512K)
	119	s8 *psxH = NULL; // Scratch Pad (1K) & Hardware Registers (8K)
	120
	121	u8 **psxMemWLUT = NULL;
	122	u8 **psxMemRLUT = NULL;
	123
	124	/* Playstation Memory Map (from Playstation doc by Joshua Walker)
	125	0x0000_0000-0x0000_ffff Kernel (64K)
	126	0x0001_0000-0x001f_ffff User Memory (1.9 Meg)
	127
	128	0x1f00_0000-0x1f00_ffff Parallel Port (64K)
	129
	130	0x1f80_0000-0x1f80_03ff Scratch Pad (1024 bytes)
	131
	132	0x1f80_1000-0x1f80_2fff Hardware Registers (8K)
	133
	134	0x1fc0_0000-0x1fc7_ffff BIOS (512K)
	135
	136	0x8000_0000-0x801f_ffff Kernel and User Memory Mirror (2 Meg) Cached
	137	0x9fc0_0000-0x9fc7_ffff BIOS Mirror (512K) Cached
	138
	139	0xa000_0000-0xa01f_ffff Kernel and User Memory Mirror (2 Meg) Uncached
	140	0xbfc0_0000-0xbfc7_ffff BIOS Mirror (512K) Uncached
	141	*/
	142
7a8d521f	143	static int psxMemInitMap(void)
7a8d521f	144	{
87e5b45f	145	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
7a8d521f	146	if (psxM == MAP_FAILED)
f23d3386	147	psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
7a8d521f	148	if (psxM == MAP_FAILED) {
a327ad27	149	SysMessage(_("mapping main RAM failed"));
7a8d521f	150	psxM = NULL;
a327ad27	151	return -1;
a327ad27	152	}
ef79bbde	153	psxP = &psxM[0x200000];
7a8d521f	154
6d760c92	155	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
7a8d521f	156	if (psxH == MAP_FAILED) {
	157	SysMessage(_("Error allocating memory!"));
	158	psxMemShutdown();
	159	return -1;
	160	}
	161
87e5b45f	162	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
7a8d521f	163	if (psxR == MAP_FAILED) {
	164	SysMessage(_("Error allocating memory!"));
	165	psxMemShutdown();
	166	return -1;
	167	}
ef79bbde	168
7a8d521f	169	return 0;
	170	}
	171
	172	static void psxMemFreeMap(void)
	173	{
	174	if (psxM) psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
	175	if (psxH) psxUnmap(psxH, 0x10000, MAP_TAG_OTHER);
	176	if (psxR) psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
	177	psxM = psxH = psxR = NULL;
	178	psxP = NULL;
	179	}
	180
	181	int psxMemInit(void)
	182	{
	183	unsigned int i;
	184	int ret;
	185
	186	if (LIGHTREC_CUSTOM_MAP)
	187	ret = lightrec_init_mmap();
	188	else
	189	ret = psxMemInitMap();
	190	if (ret) {
	191	SysMessage(_("Error allocating memory!"));
	192	psxMemShutdown();
	193	return -1;
	194	}
	195
	196	psxMemRLUT = (u8 *)malloc(0x10000 sizeof(void *));
	197	psxMemWLUT = (u8 *)malloc(0x10000 sizeof(void *));
	198
	199	if (psxMemRLUT == NULL \|\| psxMemWLUT == NULL) {
ef79bbde	200	SysMessage(_("Error allocating memory!"));
88901dd2	201	psxMemShutdown();
ef79bbde P	202	return -1;
	203	}
	204
679d5ee3	205	memset(psxMemRLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
679d5ee3	206	memset(psxMemWLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
7a8d521f	207
ef79bbde P	208	// MemR
	209	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	210
	211	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	212	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));
	213
	214	psxMemRLUT[0x1f00] = (u8 *)psxP;
	215	psxMemRLUT[0x1f80] = (u8 *)psxH;
	216
	217	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];
	218
	219	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	220	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	221
	222	// MemW
	223	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	224
	225	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	226	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	227
fa18abb2	228	// Don't allow writes to PIO Expansion region (psxP) to take effect.
	229	// NOTE: Not sure if this is needed to fix any games but seems wise,
	230	// seeing as some games do read from PIO as part of copy-protection
	231	// check. (See fix in psxMemReset() regarding psxP region reads).
7a8d521f	232	psxMemWLUT[0x1f00] = INVALID_PTR;
ef79bbde P	233	psxMemWLUT[0x1f80] = (u8 *)psxH;
	234
	235	return 0;
	236	}
	237
	238	void psxMemReset() {
	239	FILE *f = NULL;
	240	char bios[1024];
	241
	242	memset(psxM, 0, 0x00200000);
23643ee7	243	memset(psxP, 0xff, 0x00010000);
ef79bbde	244
7a8d521f	245	Config.HLE = TRUE;
7a8d521f	246
ef79bbde P	247	if (strcmp(Config.Bios, "HLE") != 0) {
	248	sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
	249	f = fopen(bios, "rb");
	250
	251	if (f == NULL) {
	252	SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
	253	memset(psxR, 0, 0x80000);
ef79bbde	254	} else {
7a8d521f	255	if (fread(psxR, 1, 0x80000, f) == 0x80000) {
	256	Config.HLE = FALSE;
	257	} else {
	258	SysMessage(_("The selected BIOS:\"%s\" is of wrong size. Enabling HLE Bios!\n"), bios);
	259	}
ef79bbde	260	fclose(f);
ef79bbde	261	}
7a8d521f	262	}
ef79bbde P	263	}
	264
	265	void psxMemShutdown() {
7a8d521f	266	if (LIGHTREC_CUSTOM_MAP)
	267	lightrec_free_mmap();
	268	else
	269	psxMemFreeMap();
ef79bbde	270
88901dd2	271	free(psxMemRLUT); psxMemRLUT = NULL;
88901dd2	272	free(psxMemWLUT); psxMemWLUT = NULL;
ef79bbde P	273	}
ef79bbde P	274
679d5ee3	275	void psxMemOnIsolate(int enable)
	276	{
	277	if (enable) {
	278	memset(psxMemWLUT + 0x0000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
	279	memset(psxMemWLUT + 0x8000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
	280	//memset(psxMemWLUT + 0xa000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
	281	} else {
	282	int i;
	283	for (i = 0; i < 0x80; i++)
	284	psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
	285	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	286	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	287	}
	288	psxCpu->Notify(enable ? R3000ACPU_NOTIFY_CACHE_ISOLATED
	289	: R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
	290	}
ef79bbde P	291
	292	u8 psxMemRead8(u32 mem) {
	293	char *p;
	294	u32 t;
	295
	296	t = mem >> 16;
9dd7d179	297	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	298	if ((mem & 0xffff) < 0x400)
ef79bbde P	299	return psxHu8(mem);
	300	else
	301	return psxHwRead8(mem);
	302	} else {
	303	p = (char *)(psxMemRLUT[t]);
7a8d521f	304	if (p != INVALID_PTR) {
ef79bbde P	305	if (Config.Debug)
	306	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R1);
	307	return (u8 )(p + (mem & 0xffff));
	308	} else {
	309	#ifdef PSXMEM_LOG
	310	PSXMEM_LOG("err lb %8.8lx\n", mem);
	311	#endif
943a507a	312	return 0xFF;
ef79bbde P	313	}
	314	}
	315	}
	316
	317	u16 psxMemRead16(u32 mem) {
	318	char *p;
	319	u32 t;
	320
	321	t = mem >> 16;
9dd7d179	322	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	323	if ((mem & 0xffff) < 0x400)
ef79bbde P	324	return psxHu16(mem);
	325	else
	326	return psxHwRead16(mem);
	327	} else {
	328	p = (char *)(psxMemRLUT[t]);
7a8d521f	329	if (p != INVALID_PTR) {
ef79bbde P	330	if (Config.Debug)
	331	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R2);
	332	return SWAPu16((u16 )(p + (mem & 0xffff)));
	333	} else {
	334	#ifdef PSXMEM_LOG
	335	PSXMEM_LOG("err lh %8.8lx\n", mem);
	336	#endif
943a507a	337	return 0xFFFF;
ef79bbde P	338	}
	339	}
	340	}
	341
	342	u32 psxMemRead32(u32 mem) {
	343	char *p;
	344	u32 t;
	345
	346	t = mem >> 16;
9dd7d179	347	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	348	if ((mem & 0xffff) < 0x400)
ef79bbde P	349	return psxHu32(mem);
	350	else
	351	return psxHwRead32(mem);
	352	} else {
	353	p = (char *)(psxMemRLUT[t]);
7a8d521f	354	if (p != INVALID_PTR) {
ef79bbde P	355	if (Config.Debug)
	356	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R4);
	357	return SWAPu32((u32 )(p + (mem & 0xffff)));
	358	} else {
679d5ee3	359	if (mem == 0xfffe0130)
679d5ee3	360	return psxRegs.biuReg;
ef79bbde	361	#ifdef PSXMEM_LOG
679d5ee3	362	PSXMEM_LOG("err lw %8.8lx\n", mem);
ef79bbde	363	#endif
943a507a	364	return 0xFFFFFFFF;
ef79bbde P	365	}
	366	}
	367	}
	368
	369	void psxMemWrite8(u32 mem, u8 value) {
	370	char *p;
	371	u32 t;
	372
	373	t = mem >> 16;
9dd7d179	374	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	375	if ((mem & 0xffff) < 0x400)
ef79bbde P	376	psxHu8(mem) = value;
	377	else
	378	psxHwWrite8(mem, value);
	379	} else {
	380	p = (char *)(psxMemWLUT[t]);
7a8d521f	381	if (p != INVALID_PTR) {
ef79bbde P	382	if (Config.Debug)
	383	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W1);
	384	(u8 )(p + (mem & 0xffff)) = value;
41e82ad4	385	#ifndef DRC_DISABLE
ef79bbde P	386	psxCpu->Clear((mem & (~3)), 1);
	387	#endif
	388	} else {
	389	#ifdef PSXMEM_LOG
	390	PSXMEM_LOG("err sb %8.8lx\n", mem);
	391	#endif
	392	}
	393	}
	394	}
	395
	396	void psxMemWrite16(u32 mem, u16 value) {
	397	char *p;
	398	u32 t;
	399
	400	t = mem >> 16;
9dd7d179	401	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	402	if ((mem & 0xffff) < 0x400)
ef79bbde P	403	psxHu16ref(mem) = SWAPu16(value);
	404	else
	405	psxHwWrite16(mem, value);
	406	} else {
	407	p = (char *)(psxMemWLUT[t]);
7a8d521f	408	if (p != INVALID_PTR) {
ef79bbde P	409	if (Config.Debug)
	410	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W2);
	411	(u16 )(p + (mem & 0xffff)) = SWAPu16(value);
41e82ad4	412	#ifndef DRC_DISABLE
3e31e934	413	psxCpu->Clear((mem & (~3)), 1);
ef79bbde P	414	#endif
	415	} else {
	416	#ifdef PSXMEM_LOG
	417	PSXMEM_LOG("err sh %8.8lx\n", mem);
	418	#endif
	419	}
	420	}
	421	}
	422
	423	void psxMemWrite32(u32 mem, u32 value) {
	424	char *p;
	425	u32 t;
	426
	427	// if ((mem&0x1fffff) == 0x71E18 \|\| value == 0x48088800) SysPrintf("t2fix!!\n");
	428	t = mem >> 16;
9dd7d179	429	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	430	if ((mem & 0xffff) < 0x400)
ef79bbde P	431	psxHu32ref(mem) = SWAPu32(value);
	432	else
	433	psxHwWrite32(mem, value);
	434	} else {
	435	p = (char *)(psxMemWLUT[t]);
7a8d521f	436	if (p != INVALID_PTR) {
ef79bbde P	437	if (Config.Debug)
	438	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W4);
	439	(u32 )(p + (mem & 0xffff)) = SWAPu32(value);
41e82ad4	440	#ifndef DRC_DISABLE
ef79bbde P	441	psxCpu->Clear(mem, 1);
	442	#endif
	443	} else {
679d5ee3	444	if (mem == 0xfffe0130) {
	445	psxRegs.biuReg = value;
	446	return;
	447	}
ef79bbde	448	#ifdef PSXMEM_LOG
679d5ee3	449	PSXMEM_LOG("err sw %8.8lx\n", mem);
ef79bbde	450	#endif
ef79bbde P	451	}
	452	}
	453	}
	454
	455	void *psxMemPointer(u32 mem) {
	456	char *p;
	457	u32 t;
	458
	459	t = mem >> 16;
9dd7d179	460	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	461	if ((mem & 0xffff) < 0x400)
ef79bbde P	462	return (void *)&psxH[mem];
	463	else
	464	return NULL;
	465	} else {
	466	p = (char *)(psxMemWLUT[t]);
7a8d521f	467	if (p != INVALID_PTR) {
ef79bbde P	468	return (void *)(p + (mem & 0xffff));
	469	}
	470	return NULL;
	471	}
	472	}