[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 "memmap.h"

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

#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif

#ifdef NDEBUG
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)
{
#ifdef LIGHTREC
#ifdef MAP_FIXED_NOREPLACE
	int flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE;
#else
	int flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED;
#endif
#else
	int flags = MAP_PRIVATE | MAP_ANONYMOUS;
#endif

	int try_ = 0;
	unsigned long mask;
	void *req, *ret;

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

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

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

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

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

			// try to use similarly aligned memory instead
			// (recompiler needs this)
			mask = try_ ? 0xffff : 0xffffff;
			addr = ((unsigned long)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
*/

int psxMemInit() {
	int i;

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

#ifdef LIGHTREC
	psxM = psxMap(0x30000000, 0x00210000, 1, MAP_TAG_RAM);
	if (psxM == NULL)
		psxM = psxMap(0x70000000, 0x00210000, 1, MAP_TAG_RAM);

#else
	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
#endif
#ifndef RAM_FIXED
	if (psxM == NULL)
		psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
#endif
	if (psxM == NULL) {
		SysMessage(_("mapping main RAM failed"));
		return -1;
	}

	psxP = &psxM[0x200000];
#ifdef LIGHTREC
	psxH = psxMap(0x4f800000, 0x10000, 0, MAP_TAG_OTHER);
	if (psxH == NULL)
		psxH = psxMap(0x8f800000, 0x10000, 0, MAP_TAG_OTHER);

	psxR = psxMap(0x4fc00000, 0x80000, 0, MAP_TAG_OTHER);
	if (psxR == NULL)
		psxR = psxMap(0x8fc00000, 0x80000, 0, MAP_TAG_OTHER);
#else
	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
#endif

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

// 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 *));

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

	return 0;
}

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

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

	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);
			Config.HLE = TRUE;
		} else {
			fread(psxR, 1, 0x80000, f);
			fclose(f);
			Config.HLE = FALSE;
		}
	} else Config.HLE = TRUE;
}

void psxMemShutdown() {
	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM); psxM = NULL;
	psxUnmap(psxH, 0x10000, MAP_TAG_OTHER); psxH = NULL;
	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER); psxR = NULL;

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

static int writeok = 1;

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 != NULL) {
			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 0;
		}
	}
}

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 != NULL) {
			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 0;
		}
	}
}

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 != NULL) {
			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 0;
		}
	}
}

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 != NULL) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, W1);
			*(u8 *)(p + (mem & 0xffff)) = value;
#ifdef PSXREC
			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 != NULL) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, W2);
			*(u16 *)(p + (mem & 0xffff)) = SWAPu16(value);
#ifdef PSXREC
			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 != NULL) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, W4);
			*(u32 *)(p + (mem & 0xffff)) = SWAPu32(value);
#ifdef PSXREC
			psxCpu->Clear(mem, 1);
#endif
		} else {
			if (mem != 0xfffe0130) {
#ifdef PSXREC
				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, 0, 0x80 * sizeof(void *));
						memset(psxMemWLUT + 0x8000, 0, 0x80 * sizeof(void *));
						memset(psxMemWLUT + 0xa000, 0, 0x80 * sizeof(void *));
						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 *));
						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 != NULL) {
			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
ce0e7ac9	32	#include "memmap.h"
ef79bbde	33
226a5691	34	#ifdef USE_LIBRETRO_VFS
	35	#include <streams/file_stream_transforms.h>
	36	#endif
	37
ef79bbde P	38	#ifndef MAP_ANONYMOUS
	39	#define MAP_ANONYMOUS MAP_ANON
	40	#endif
	41
11a43034	42	#ifdef NDEBUG
	43	void DebugCheckBP(u32 address, enum breakpoint_types type) {}
	44	#endif
	45
87e5b45f	46	void (psxMapHook)(unsigned long addr, size_t size, int is_fixed,
	47	enum psxMapTag tag);
	48	void (psxUnmapHook)(void ptr, size_t size, enum psxMapTag tag);
	49
	50	void *psxMap(unsigned long addr, size_t size, int is_fixed,
	51	enum psxMapTag tag)
	52	{
a62012a7	53	#ifdef LIGHTREC
f12a6e13 ZC	54	#ifdef MAP_FIXED_NOREPLACE
	55	int flags = MAP_PRIVATE \| MAP_ANONYMOUS \| MAP_FIXED_NOREPLACE;
	56	#else
38c19eff	57	int flags = MAP_PRIVATE \| MAP_ANONYMOUS \| MAP_FIXED;
f12a6e13	58	#endif
a62012a7 T	59	#else
	60	int flags = MAP_PRIVATE \| MAP_ANONYMOUS;
	61	#endif
	62
5644b26c	63	int try_ = 0;
b0dd9956	64	unsigned long mask;
87e5b45f	65	void req, ret;
87e5b45f	66
b0dd9956	67	retry:
b0dd9956	68	if (psxMapHook != NULL) {
85f23982	69	ret = psxMapHook(addr, size, 0, tag);
	70	if (ret == NULL)
	71	return NULL;
	72	}
	73	else {
	74	/* avoid MAP_FIXED, it overrides existing mappings.. */
	75	/* if (is_fixed)
	76	flags \|= MAP_FIXED; */
	77
	78	req = (void *)addr;
	79	ret = mmap(req, size, PROT_READ \| PROT_WRITE, flags, -1, 0);
	80	if (ret == MAP_FAILED)
	81	return NULL;
b0dd9956	82	}
87e5b45f	83
b0dd9956	84	if (addr != 0 && ret != (void *)addr) {
	85	SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
	86	addr, ret);
	87
0069615f	88	if (is_fixed) {
	89	psxUnmap(ret, size, tag);
	90	return NULL;
	91	}
	92
5644b26c	93	if (((addr ^ (unsigned long)ret) & ~0xff000000l) && try_ < 2)
b0dd9956	94	{
	95	psxUnmap(ret, size, tag);
	96
	97	// try to use similarly aligned memory instead
	98	// (recompiler needs this)
5644b26c	99	mask = try_ ? 0xffff : 0xffffff;
	100	addr = ((unsigned long)ret + mask) & ~mask;
	101	try_++;
b0dd9956	102	goto retry;
	103	}
	104	}
87e5b45f	105
	106	return ret;
	107	}
	108
	109	void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
	110	{
	111	if (psxUnmapHook != NULL) {
	112	psxUnmapHook(ptr, size, tag);
	113	return;
	114	}
	115
88901dd2	116	if (ptr)
88901dd2	117	munmap(ptr, size);
87e5b45f	118	}
87e5b45f	119
ef79bbde P	120	s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
	121	s8 *psxP = NULL; // Parallel Port (64K)
	122	s8 *psxR = NULL; // BIOS ROM (512K)
	123	s8 *psxH = NULL; // Scratch Pad (1K) & Hardware Registers (8K)
	124
	125	u8 **psxMemWLUT = NULL;
	126	u8 **psxMemRLUT = NULL;
	127
	128	/* Playstation Memory Map (from Playstation doc by Joshua Walker)
	129	0x0000_0000-0x0000_ffff Kernel (64K)
	130	0x0001_0000-0x001f_ffff User Memory (1.9 Meg)
	131
	132	0x1f00_0000-0x1f00_ffff Parallel Port (64K)
	133
	134	0x1f80_0000-0x1f80_03ff Scratch Pad (1024 bytes)
	135
	136	0x1f80_1000-0x1f80_2fff Hardware Registers (8K)
	137
	138	0x1fc0_0000-0x1fc7_ffff BIOS (512K)
	139
	140	0x8000_0000-0x801f_ffff Kernel and User Memory Mirror (2 Meg) Cached
	141	0x9fc0_0000-0x9fc7_ffff BIOS Mirror (512K) Cached
	142
	143	0xa000_0000-0xa01f_ffff Kernel and User Memory Mirror (2 Meg) Uncached
	144	0xbfc0_0000-0xbfc7_ffff BIOS Mirror (512K) Uncached
	145	*/
	146
	147	int psxMemInit() {
	148	int i;
	149
	150	psxMemRLUT = (u8 *)malloc(0x10000 sizeof(void *));
	151	psxMemWLUT = (u8 *)malloc(0x10000 sizeof(void *));
	152	memset(psxMemRLUT, 0, 0x10000 * sizeof(void *));
	153	memset(psxMemWLUT, 0, 0x10000 * sizeof(void *));
	154
a62012a7	155	#ifdef LIGHTREC
38c19eff	156	psxM = psxMap(0x30000000, 0x00210000, 1, MAP_TAG_RAM);
f12a6e13 ZC	157	if (psxM == NULL)
	158	psxM = psxMap(0x70000000, 0x00210000, 1, MAP_TAG_RAM);
	159
a62012a7 T	160	#else
	161	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
	162	#endif
a327ad27	163	#ifndef RAM_FIXED
a4874585	164	if (psxM == NULL)
f23d3386	165	psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
a327ad27	166	#endif
87e5b45f	167	if (psxM == NULL) {
a327ad27	168	SysMessage(_("mapping main RAM failed"));
	169	return -1;
	170	}
ef79bbde P	171
ef79bbde P	172	psxP = &psxM[0x200000];
a62012a7	173	#ifdef LIGHTREC
38c19eff	174	psxH = psxMap(0x4f800000, 0x10000, 0, MAP_TAG_OTHER);
f12a6e13 ZC	175	if (psxH == NULL)
	176	psxH = psxMap(0x8f800000, 0x10000, 0, MAP_TAG_OTHER);
	177
38c19eff	178	psxR = psxMap(0x4fc00000, 0x80000, 0, MAP_TAG_OTHER);
f12a6e13 ZC	179	if (psxR == NULL)
f12a6e13 ZC	180	psxR = psxMap(0x8fc00000, 0x80000, 0, MAP_TAG_OTHER);
a62012a7 T	181	#else
	182	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
	183	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
	184	#endif
ef79bbde P	185
ef79bbde P	186	if (psxMemRLUT == NULL \|\| psxMemWLUT == NULL \|\|
6d760c92	187	psxR == NULL \|\| psxP == NULL \|\| psxH == NULL) {
ef79bbde	188	SysMessage(_("Error allocating memory!"));
88901dd2	189	psxMemShutdown();
ef79bbde P	190	return -1;
	191	}
	192
	193	// MemR
	194	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	195
	196	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	197	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));
	198
	199	psxMemRLUT[0x1f00] = (u8 *)psxP;
	200	psxMemRLUT[0x1f80] = (u8 *)psxH;
	201
	202	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];
	203
	204	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	205	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	206
	207	// MemW
	208	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	209
	210	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	211	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	212
	213	psxMemWLUT[0x1f00] = (u8 *)psxP;
	214	psxMemWLUT[0x1f80] = (u8 *)psxH;
	215
	216	return 0;
	217	}
	218
	219	void psxMemReset() {
	220	FILE *f = NULL;
	221	char bios[1024];
	222
	223	memset(psxM, 0, 0x00200000);
23643ee7	224	memset(psxP, 0xff, 0x00010000);
ef79bbde P	225
	226	if (strcmp(Config.Bios, "HLE") != 0) {
	227	sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
226a5691	228	f = fopen(bios, "rb");
ef79bbde P	229
	230	if (f == NULL) {
	231	SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
	232	memset(psxR, 0, 0x80000);
	233	Config.HLE = TRUE;
	234	} else {
	235	fread(psxR, 1, 0x80000, f);
	236	fclose(f);
	237	Config.HLE = FALSE;
	238	}
	239	} else Config.HLE = TRUE;
	240	}
	241
	242	void psxMemShutdown() {
88901dd2	243	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM); psxM = NULL;
	244	psxUnmap(psxH, 0x10000, MAP_TAG_OTHER); psxH = NULL;
	245	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER); psxR = NULL;
ef79bbde	246
88901dd2	247	free(psxMemRLUT); psxMemRLUT = NULL;
88901dd2	248	free(psxMemWLUT); psxMemWLUT = NULL;
ef79bbde P	249	}
	250
	251	static int writeok = 1;
	252
	253	u8 psxMemRead8(u32 mem) {
	254	char *p;
	255	u32 t;
	256
	257	t = mem >> 16;
9dd7d179	258	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	259	if ((mem & 0xffff) < 0x400)
ef79bbde P	260	return psxHu8(mem);
	261	else
	262	return psxHwRead8(mem);
	263	} else {
	264	p = (char *)(psxMemRLUT[t]);
	265	if (p != NULL) {
	266	if (Config.Debug)
	267	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R1);
	268	return (u8 )(p + (mem & 0xffff));
	269	} else {
	270	#ifdef PSXMEM_LOG
	271	PSXMEM_LOG("err lb %8.8lx\n", mem);
	272	#endif
	273	return 0;
	274	}
	275	}
	276	}
	277
	278	u16 psxMemRead16(u32 mem) {
	279	char *p;
	280	u32 t;
	281
	282	t = mem >> 16;
9dd7d179	283	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	284	if ((mem & 0xffff) < 0x400)
ef79bbde P	285	return psxHu16(mem);
	286	else
	287	return psxHwRead16(mem);
	288	} else {
	289	p = (char *)(psxMemRLUT[t]);
	290	if (p != NULL) {
	291	if (Config.Debug)
	292	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R2);
	293	return SWAPu16((u16 )(p + (mem & 0xffff)));
	294	} else {
	295	#ifdef PSXMEM_LOG
	296	PSXMEM_LOG("err lh %8.8lx\n", mem);
	297	#endif
	298	return 0;
	299	}
	300	}
	301	}
	302
	303	u32 psxMemRead32(u32 mem) {
	304	char *p;
	305	u32 t;
	306
	307	t = mem >> 16;
9dd7d179	308	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	309	if ((mem & 0xffff) < 0x400)
ef79bbde P	310	return psxHu32(mem);
	311	else
	312	return psxHwRead32(mem);
	313	} else {
	314	p = (char *)(psxMemRLUT[t]);
	315	if (p != NULL) {
	316	if (Config.Debug)
	317	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R4);
	318	return SWAPu32((u32 )(p + (mem & 0xffff)));
	319	} else {
	320	#ifdef PSXMEM_LOG
	321	if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
	322	#endif
	323	return 0;
	324	}
	325	}
	326	}
	327
	328	void psxMemWrite8(u32 mem, u8 value) {
	329	char *p;
	330	u32 t;
	331
	332	t = mem >> 16;
9dd7d179	333	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	334	if ((mem & 0xffff) < 0x400)
ef79bbde P	335	psxHu8(mem) = value;
	336	else
	337	psxHwWrite8(mem, value);
	338	} else {
	339	p = (char *)(psxMemWLUT[t]);
	340	if (p != NULL) {
	341	if (Config.Debug)
	342	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W1);
	343	(u8 )(p + (mem & 0xffff)) = value;
	344	#ifdef PSXREC
	345	psxCpu->Clear((mem & (~3)), 1);
	346	#endif
	347	} else {
	348	#ifdef PSXMEM_LOG
	349	PSXMEM_LOG("err sb %8.8lx\n", mem);
	350	#endif
	351	}
	352	}
	353	}
	354
	355	void psxMemWrite16(u32 mem, u16 value) {
	356	char *p;
	357	u32 t;
	358
	359	t = mem >> 16;
9dd7d179	360	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	361	if ((mem & 0xffff) < 0x400)
ef79bbde P	362	psxHu16ref(mem) = SWAPu16(value);
	363	else
	364	psxHwWrite16(mem, value);
	365	} else {
	366	p = (char *)(psxMemWLUT[t]);
	367	if (p != NULL) {
	368	if (Config.Debug)
	369	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W2);
	370	(u16 )(p + (mem & 0xffff)) = SWAPu16(value);
	371	#ifdef PSXREC
3e31e934	372	psxCpu->Clear((mem & (~3)), 1);
ef79bbde P	373	#endif
	374	} else {
	375	#ifdef PSXMEM_LOG
	376	PSXMEM_LOG("err sh %8.8lx\n", mem);
	377	#endif
	378	}
	379	}
	380	}
	381
	382	void psxMemWrite32(u32 mem, u32 value) {
	383	char *p;
	384	u32 t;
	385
	386	// if ((mem&0x1fffff) == 0x71E18 \|\| value == 0x48088800) SysPrintf("t2fix!!\n");
	387	t = mem >> 16;
9dd7d179	388	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	389	if ((mem & 0xffff) < 0x400)
ef79bbde P	390	psxHu32ref(mem) = SWAPu32(value);
	391	else
	392	psxHwWrite32(mem, value);
	393	} else {
	394	p = (char *)(psxMemWLUT[t]);
	395	if (p != NULL) {
	396	if (Config.Debug)
	397	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W4);
	398	(u32 )(p + (mem & 0xffff)) = SWAPu32(value);
	399	#ifdef PSXREC
	400	psxCpu->Clear(mem, 1);
	401	#endif
	402	} else {
	403	if (mem != 0xfffe0130) {
	404	#ifdef PSXREC
	405	if (!writeok)
	406	psxCpu->Clear(mem, 1);
	407	#endif
	408
	409	#ifdef PSXMEM_LOG
	410	if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); }
	411	#endif
	412	} else {
	413	int i;
	414
	415	switch (value) {
	416	case 0x800: case 0x804:
	417	if (writeok == 0) break;
	418	writeok = 0;
	419	memset(psxMemWLUT + 0x0000, 0, 0x80 * sizeof(void *));
	420	memset(psxMemWLUT + 0x8000, 0, 0x80 * sizeof(void *));
	421	memset(psxMemWLUT + 0xa000, 0, 0x80 * sizeof(void *));
	422	break;
	423	case 0x00: case 0x1e988:
	424	if (writeok == 1) break;
	425	writeok = 1;
	426	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
	427	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	428	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	429	break;
	430	default:
	431	#ifdef PSXMEM_LOG
	432	PSXMEM_LOG("unk %8.8lx = %x\n", mem, value);
	433	#endif
	434	break;
	435	}
	436	}
	437	}
	438	}
	439	}
	440
	441	void *psxMemPointer(u32 mem) {
	442	char *p;
	443	u32 t;
	444
	445	t = mem >> 16;
9dd7d179	446	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	447	if ((mem & 0xffff) < 0x400)
ef79bbde P	448	return (void *)&psxH[mem];
	449	else
	450	return NULL;
	451	} else {
	452	p = (char *)(psxMemWLUT[t]);
	453	if (p != NULL) {
	454	return (void *)(p + (mem & 0xffff));
	455	}
	456	return NULL;
	457	}
	458	}