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