[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"

#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

boolean writeok = TRUE;

#ifndef NDEBUG
#include "debug.h"
#else
void DebugCheckBP(u32 address, enum breakpoint_types type) {}
#endif

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

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

retry:
	if (psxMapHook != NULL) {
		ret = psxMapHook(addr, size, 0, tag);
		if (ret == NULL)
			return MAP_FAILED;
	}
	else {
		/* avoid MAP_FIXED, it overrides existing mappings.. */
		/* if (is_fixed)
			flags |= MAP_FIXED; */

		req = (void *)(uintptr_t)addr;
		ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0);
		if (ret == MAP_FAILED)
			return ret;
	}

	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)
{
	if (psxUnmapHook != NULL) {
		psxUnmapHook(ptr, size, tag);
		return;
	}

	if (ptr)
		munmap(ptr, size);
}

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"));
		return -1;
	}

	psxP = &psxM[0x200000];
	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);

	if (psxR == MAP_FAILED || psxH == MAP_FAILED) {
		SysMessage(_("Error allocating memory!"));
		psxMemShutdown();
		return -1;
	}

	return 0;
}

static void psxMemFreeMap(void)
{
	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM); psxM = NULL;
	psxUnmap(psxH, 0x10000, MAP_TAG_OTHER); psxH = NULL;
	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER); psxR = 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, 0xff, 0x10000 * sizeof(void *));
	memset(psxMemWLUT, 0xff, 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;
}

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 {
#ifdef PSXMEM_LOG
			if (writeok) { 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) {
#ifndef DRC_DISABLE
				if (!writeok)
					psxCpu->Clear(mem, 1);
#endif

#ifdef PSXMEM_LOG
				if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); }
#endif
			} else {
				int i;

				switch (value) {
					case 0x800: case 0x804:
						if (writeok == 0) break;
						writeok = 0;
						memset(psxMemWLUT + 0x0000, 0xff, 0x80 * sizeof(void *));
						memset(psxMemWLUT + 0x8000, 0xff, 0x80 * sizeof(void *));
						memset(psxMemWLUT + 0xa000, 0xff, 0x80 * sizeof(void *));
						/* Required for icache interpreter otherwise Armored Core won't boot on icache interpreter */
						psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_ISOLATED, NULL);
						break;
					case 0x00: case 0x1e988:
						if (writeok == 1) break;
						writeok = 1;
						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 *));
						/* Dynarecs might take this opportunity to flush their code cache */
						psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
						break;
					default:
#ifdef PSXMEM_LOG
						PSXMEM_LOG("unk %8.8lx = %x\n", mem, value);
#endif
						break;
				}
			}
		}
	}
}

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"
fc8145b7	30	#include "debug.h"
ce0e7ac9	31
479d58cf	32	#include "lightrec/mem.h"
ce0e7ac9	33	#include "memmap.h"
ef79bbde	34
226a5691	35	#ifdef USE_LIBRETRO_VFS
	36	#include <streams/file_stream_transforms.h>
	37	#endif
	38
ef79bbde P	39	#ifndef MAP_ANONYMOUS
	40	#define MAP_ANONYMOUS MAP_ANON
	41	#endif
	42
7a811716	43	boolean writeok = TRUE;
7a811716	44
9361a5aa EC	45	#ifndef NDEBUG
	46	#include "debug.h"
	47	#else
11a43034	48	void DebugCheckBP(u32 address, enum breakpoint_types type) {}
	49	#endif
	50
87e5b45f	51	void (psxMapHook)(unsigned long addr, size_t size, int is_fixed,
	52	enum psxMapTag tag);
	53	void (psxUnmapHook)(void ptr, size_t size, enum psxMapTag tag);
	54
	55	void *psxMap(unsigned long addr, size_t size, int is_fixed,
	56	enum psxMapTag tag)
	57	{
a62012a7	58	int flags = MAP_PRIVATE \| MAP_ANONYMOUS;
5644b26c	59	int try_ = 0;
b0dd9956	60	unsigned long mask;
87e5b45f	61	void req, ret;
87e5b45f	62
b0dd9956	63	retry:
b0dd9956	64	if (psxMapHook != NULL) {
85f23982	65	ret = psxMapHook(addr, size, 0, tag);
85f23982	66	if (ret == NULL)
b012a437	67	return MAP_FAILED;
85f23982	68	}
	69	else {
	70	/* avoid MAP_FIXED, it overrides existing mappings.. */
	71	/* if (is_fixed)
	72	flags \|= MAP_FIXED; */
	73
2d724e28	74	req = (void *)(uintptr_t)addr;
85f23982	75	ret = mmap(req, size, PROT_READ \| PROT_WRITE, flags, -1, 0);
85f23982	76	if (ret == MAP_FAILED)
b012a437	77	return ret;
b0dd9956	78	}
87e5b45f	79
2d724e28	80	if (addr != 0 && ret != (void *)(uintptr_t)addr) {
b0dd9956	81	SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
	82	addr, ret);
	83
0069615f	84	if (is_fixed) {
0069615f	85	psxUnmap(ret, size, tag);
b012a437	86	return MAP_FAILED;
0069615f	87	}
0069615f	88
2d724e28	89	if (((addr ^ (unsigned long)(uintptr_t)ret) & ~0xff000000l) && try_ < 2)
b0dd9956	90	{
	91	psxUnmap(ret, size, tag);
	92
	93	// try to use similarly aligned memory instead
	94	// (recompiler needs this)
5644b26c	95	mask = try_ ? 0xffff : 0xffffff;
2d724e28	96	addr = ((uintptr_t)ret + mask) & ~mask;
5644b26c	97	try_++;
b0dd9956	98	goto retry;
	99	}
	100	}
87e5b45f	101
	102	return ret;
	103	}
	104
	105	void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
	106	{
	107	if (psxUnmapHook != NULL) {
	108	psxUnmapHook(ptr, size, tag);
	109	return;
	110	}
	111
88901dd2	112	if (ptr)
88901dd2	113	munmap(ptr, size);
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
479d58cf PC	143	static int psxMemInitMap(void)
479d58cf PC	144	{
a62012a7	145	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
b012a437	146	if (psxM == MAP_FAILED)
f23d3386	147	psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
b012a437	148	if (psxM == MAP_FAILED) {
a327ad27	149	SysMessage(_("mapping main RAM failed"));
	150	return -1;
	151	}
ef79bbde P	152
ef79bbde P	153	psxP = &psxM[0x200000];
a62012a7 T	154	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
a62012a7 T	155	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
ef79bbde	156
b012a437	157	if (psxR == MAP_FAILED \|\| psxH == MAP_FAILED) {
ef79bbde	158	SysMessage(_("Error allocating memory!"));
88901dd2	159	psxMemShutdown();
ef79bbde P	160	return -1;
	161	}
	162
479d58cf PC	163	return 0;
	164	}
	165
	166	static void psxMemFreeMap(void)
	167	{
	168	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM); psxM = NULL;
	169	psxUnmap(psxH, 0x10000, MAP_TAG_OTHER); psxH = NULL;
	170	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER); psxR = NULL;
	171	}
	172
	173	int psxMemInit(void)
	174	{
	175	unsigned int i;
	176	int ret;
	177
640c8536	178	if (LIGHTREC_CUSTOM_MAP)
479d58cf PC	179	ret = lightrec_init_mmap();
	180	else
	181	ret = psxMemInitMap();
	182	if (ret) {
	183	SysMessage(_("Error allocating memory!"));
	184	psxMemShutdown();
	185	return -1;
	186	}
	187
b012a437 PC	188	psxMemRLUT = (u8 *)malloc(0x10000 sizeof(void *));
	189	psxMemWLUT = (u8 *)malloc(0x10000 sizeof(void *));
	190
	191	if (psxMemRLUT == NULL \|\| psxMemWLUT == NULL) {
	192	SysMessage(_("Error allocating memory!"));
	193	psxMemShutdown();
	194	return -1;
	195	}
	196
	197	memset(psxMemRLUT, 0xff, 0x10000 * sizeof(void *));
	198	memset(psxMemWLUT, 0xff, 0x10000 * sizeof(void *));
	199
ef79bbde P	200	// MemR
	201	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	202
	203	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	204	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));
	205
	206	psxMemRLUT[0x1f00] = (u8 *)psxP;
	207	psxMemRLUT[0x1f80] = (u8 *)psxH;
	208
	209	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];
	210
	211	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	212	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	213
	214	// MemW
	215	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	216
	217	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	218	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	219
6e4e5efb	220	// Don't allow writes to PIO Expansion region (psxP) to take effect.
	221	// NOTE: Not sure if this is needed to fix any games but seems wise,
	222	// seeing as some games do read from PIO as part of copy-protection
	223	// check. (See fix in psxMemReset() regarding psxP region reads).
b012a437	224	psxMemWLUT[0x1f00] = INVALID_PTR;
ef79bbde P	225	psxMemWLUT[0x1f80] = (u8 *)psxH;
	226
	227	return 0;
	228	}
	229
	230	void psxMemReset() {
	231	FILE *f = NULL;
	232	char bios[1024];
	233
	234	memset(psxM, 0, 0x00200000);
23643ee7	235	memset(psxP, 0xff, 0x00010000);
ef79bbde	236
9361a5aa EC	237	Config.HLE = TRUE;
9361a5aa EC	238
ef79bbde P	239	if (strcmp(Config.Bios, "HLE") != 0) {
ef79bbde P	240	sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
226a5691	241	f = fopen(bios, "rb");
ef79bbde P	242
	243	if (f == NULL) {
	244	SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
	245	memset(psxR, 0, 0x80000);
ef79bbde	246	} else {
9361a5aa EC	247	if (fread(psxR, 1, 0x80000, f) == 0x80000) {
	248	Config.HLE = FALSE;
	249	} else {
	250	SysMessage(_("The selected BIOS:\"%s\" is of wrong size. Enabling HLE Bios!\n"), bios);
	251	}
ef79bbde	252	fclose(f);
ef79bbde	253	}
9361a5aa	254	}
ef79bbde P	255	}
	256
	257	void psxMemShutdown() {
640c8536	258	if (LIGHTREC_CUSTOM_MAP)
479d58cf PC	259	lightrec_free_mmap();
	260	else
	261	psxMemFreeMap();
ef79bbde	262
88901dd2	263	free(psxMemRLUT); psxMemRLUT = NULL;
88901dd2	264	free(psxMemWLUT); psxMemWLUT = NULL;
ef79bbde P	265	}
ef79bbde P	266
ef79bbde P	267	u8 psxMemRead8(u32 mem) {
	268	char *p;
	269	u32 t;
	270
	271	t = mem >> 16;
9dd7d179	272	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	273	if ((mem & 0xffff) < 0x400)
ef79bbde P	274	return psxHu8(mem);
	275	else
	276	return psxHwRead8(mem);
	277	} else {
	278	p = (char *)(psxMemRLUT[t]);
b012a437	279	if (p != INVALID_PTR) {
ef79bbde P	280	if (Config.Debug)
	281	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R1);
	282	return (u8 )(p + (mem & 0xffff));
	283	} else {
	284	#ifdef PSXMEM_LOG
	285	PSXMEM_LOG("err lb %8.8lx\n", mem);
	286	#endif
e86be808	287	return 0xFF;
ef79bbde P	288	}
	289	}
	290	}
	291
	292	u16 psxMemRead16(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 psxHu16(mem);
	300	else
	301	return psxHwRead16(mem);
	302	} else {
	303	p = (char *)(psxMemRLUT[t]);
b012a437	304	if (p != INVALID_PTR) {
ef79bbde P	305	if (Config.Debug)
	306	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R2);
	307	return SWAPu16((u16 )(p + (mem & 0xffff)));
	308	} else {
	309	#ifdef PSXMEM_LOG
	310	PSXMEM_LOG("err lh %8.8lx\n", mem);
	311	#endif
e86be808	312	return 0xFFFF;
ef79bbde P	313	}
	314	}
	315	}
	316
	317	u32 psxMemRead32(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 psxHu32(mem);
	325	else
	326	return psxHwRead32(mem);
	327	} else {
	328	p = (char *)(psxMemRLUT[t]);
b012a437	329	if (p != INVALID_PTR) {
ef79bbde P	330	if (Config.Debug)
	331	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R4);
	332	return SWAPu32((u32 )(p + (mem & 0xffff)));
	333	} else {
	334	#ifdef PSXMEM_LOG
	335	if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
	336	#endif
e86be808	337	return 0xFFFFFFFF;
ef79bbde P	338	}
	339	}
	340	}
	341
	342	void psxMemWrite8(u32 mem, u8 value) {
	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	psxHu8(mem) = value;
	350	else
	351	psxHwWrite8(mem, value);
	352	} else {
	353	p = (char *)(psxMemWLUT[t]);
b012a437	354	if (p != INVALID_PTR) {
ef79bbde P	355	if (Config.Debug)
	356	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W1);
	357	(u8 )(p + (mem & 0xffff)) = value;
630b122b	358	#ifndef DRC_DISABLE
ef79bbde P	359	psxCpu->Clear((mem & (~3)), 1);
	360	#endif
	361	} else {
	362	#ifdef PSXMEM_LOG
	363	PSXMEM_LOG("err sb %8.8lx\n", mem);
	364	#endif
	365	}
	366	}
	367	}
	368
	369	void psxMemWrite16(u32 mem, u16 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	psxHu16ref(mem) = SWAPu16(value);
	377	else
	378	psxHwWrite16(mem, value);
	379	} else {
	380	p = (char *)(psxMemWLUT[t]);
b012a437	381	if (p != INVALID_PTR) {
ef79bbde P	382	if (Config.Debug)
	383	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W2);
	384	(u16 )(p + (mem & 0xffff)) = SWAPu16(value);
630b122b	385	#ifndef DRC_DISABLE
3e31e934	386	psxCpu->Clear((mem & (~3)), 1);
ef79bbde P	387	#endif
	388	} else {
	389	#ifdef PSXMEM_LOG
	390	PSXMEM_LOG("err sh %8.8lx\n", mem);
	391	#endif
	392	}
	393	}
	394	}
	395
	396	void psxMemWrite32(u32 mem, u32 value) {
	397	char *p;
	398	u32 t;
630b122b	399
ef79bbde P	400	// if ((mem&0x1fffff) == 0x71E18 \|\| value == 0x48088800) SysPrintf("t2fix!!\n");
ef79bbde P	401	t = mem >> 16;
9dd7d179	402	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
630b122b	403	if ((mem & 0xffff) < 0x400)
ef79bbde P	404	psxHu32ref(mem) = SWAPu32(value);
	405	else
	406	psxHwWrite32(mem, value);
	407	} else {
	408	p = (char *)(psxMemWLUT[t]);
b012a437	409	if (p != INVALID_PTR) {
ef79bbde P	410	if (Config.Debug)
	411	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W4);
	412	(u32 )(p + (mem & 0xffff)) = SWAPu32(value);
630b122b	413	#ifndef DRC_DISABLE
ef79bbde P	414	psxCpu->Clear(mem, 1);
	415	#endif
	416	} else {
	417	if (mem != 0xfffe0130) {
630b122b	418	#ifndef DRC_DISABLE
ef79bbde P	419	if (!writeok)
	420	psxCpu->Clear(mem, 1);
	421	#endif
	422
	423	#ifdef PSXMEM_LOG
	424	if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); }
	425	#endif
	426	} else {
	427	int i;
	428
	429	switch (value) {
	430	case 0x800: case 0x804:
630b122b	431	if (writeok == 0) break;
630b122b	432	writeok = 0;
b012a437 PC	433	memset(psxMemWLUT + 0x0000, 0xff, 0x80 * sizeof(void *));
	434	memset(psxMemWLUT + 0x8000, 0xff, 0x80 * sizeof(void *));
	435	memset(psxMemWLUT + 0xa000, 0xff, 0x80 * sizeof(void *));
630b122b	436	/* Required for icache interpreter otherwise Armored Core won't boot on icache interpreter */
7a811716	437	psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_ISOLATED, NULL);
ef79bbde P	438	break;
ef79bbde P	439	case 0x00: case 0x1e988:
630b122b	440	if (writeok == 1) break;
630b122b	441	writeok = 1;
ef79bbde P	442	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
	443	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	444	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
7a811716	445	/* Dynarecs might take this opportunity to flush their code cache */
7a811716	446	psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
ef79bbde P	447	break;
	448	default:
	449	#ifdef PSXMEM_LOG
	450	PSXMEM_LOG("unk %8.8lx = %x\n", mem, value);
	451	#endif
	452	break;
	453	}
	454	}
	455	}
	456	}
	457	}
	458
	459	void *psxMemPointer(u32 mem) {
	460	char *p;
	461	u32 t;
	462
	463	t = mem >> 16;
9dd7d179	464	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	465	if ((mem & 0xffff) < 0x400)
ef79bbde P	466	return (void *)&psxH[mem];
	467	else
	468	return NULL;
	469	} else {
	470	p = (char *)(psxMemWLUT[t]);
b012a437	471	if (p != INVALID_PTR) {
ef79bbde P	472	return (void *)(p + (mem & 0xffff));
	473	}
	474	return NULL;
	475	}
	476	}