[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)
{
	int flags = MAP_PRIVATE | MAP_ANONYMOUS;

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

static void psxUnmapDefault(void *ptr, size_t size, enum psxMapTag tag)
{
	munmap(ptr, size);
}

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