[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"

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