[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 <sys/mman.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)
{
	int flags = MAP_PRIVATE | MAP_ANONYMOUS;
	int tried_to_align = 0;
	unsigned long mask;
	void *req, *ret;

retry:
	if (psxMapHook != NULL) {
		ret = psxMapHook(addr, size, is_fixed, tag);
		goto out;
	}

	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;

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

		if (ret != NULL && ((addr ^ (long)ret) & 0x00ffffff)
		    && !tried_to_align)
		{
			psxUnmap(ret, size, tag);

			// try to use similarly aligned memory instead
			// (recompiler needs this)
			mask = (addr - 1) & ~addr & 0x07ffffff;
			addr = (unsigned long)(ret + mask) & ~mask;
			tried_to_align = 1;
			goto retry;
		}
	}

	return ret;
}

void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
{
	if (psxUnmapHook != NULL) {
		psxUnmapHook(ptr, size, tag);
		return;
	}

	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 *));

	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
#ifndef RAM_FIXED
	if (psxM == NULL)
		psxM = psxMap(0x78000000, 0x00210000, 0, MAP_TAG_RAM);
#endif
	if (psxM == NULL) {
		SysMessage(_("mapping main RAM failed"));
		return -1;
	}

	psxP = &psxM[0x200000];
	psxH = psxMap(0x1f800000, 0x10000, 1, MAP_TAG_OTHER);
	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);

	if (psxMemRLUT == NULL || psxMemWLUT == NULL || 
		psxR == NULL || psxP == NULL || psxH != (void *)0x1f800000) {
		SysMessage(_("Error allocating memory!"));
		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, 0, 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);
	psxUnmap(psxH, 0x1f800000, MAP_TAG_OTHER);
	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);

	free(psxMemRLUT);
	free(psxMemWLUT);
}

static int writeok = 1;

u8 psxMemRead8(u32 mem) {
	char *p;
	u32 t;

	t = mem >> 16;
	if (t == 0x1f80) {
		if (mem < 0x1f801000)
			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) {
		if (mem < 0x1f801000)
			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) {
		if (mem < 0x1f801000)
			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) {
		if (mem < 0x1f801000)
			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) {
		if (mem < 0x1f801000)
			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) {
		if (mem < 0x1f801000)
			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) {
		if (mem < 0x1f801000)
			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"
ef79bbde P	31	#include <sys/mman.h>
	32
	33	#ifndef MAP_ANONYMOUS
	34	#define MAP_ANONYMOUS MAP_ANON
	35	#endif
	36
87e5b45f	37	void (psxMapHook)(unsigned long addr, size_t size, int is_fixed,
	38	enum psxMapTag tag);
	39	void (psxUnmapHook)(void ptr, size_t size, enum psxMapTag tag);
	40
	41	void *psxMap(unsigned long addr, size_t size, int is_fixed,
	42	enum psxMapTag tag)
	43	{
	44	int flags = MAP_PRIVATE \| MAP_ANONYMOUS;
b0dd9956	45	int tried_to_align = 0;
b0dd9956	46	unsigned long mask;
87e5b45f	47	void req, ret;
87e5b45f	48
b0dd9956	49	retry:
	50	if (psxMapHook != NULL) {
	51	ret = psxMapHook(addr, size, is_fixed, tag);
	52	goto out;
	53	}
87e5b45f	54
	55	if (is_fixed)
	56	flags \|= MAP_FIXED;
	57
	58	req = (void *)addr;
	59	ret = mmap(req, size, PROT_READ \| PROT_WRITE, flags, -1, 0);
	60	if (ret == MAP_FAILED)
	61	return NULL;
	62
b0dd9956	63	out:
	64	if (addr != 0 && ret != (void *)addr) {
	65	SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
	66	addr, ret);
	67
	68	if (ret != NULL && ((addr ^ (long)ret) & 0x00ffffff)
	69	&& !tried_to_align)
	70	{
	71	psxUnmap(ret, size, tag);
	72
	73	// try to use similarly aligned memory instead
	74	// (recompiler needs this)
	75	mask = (addr - 1) & ~addr & 0x07ffffff;
	76	addr = (unsigned long)(ret + mask) & ~mask;
	77	tried_to_align = 1;
	78	goto retry;
	79	}
	80	}
87e5b45f	81
	82	return ret;
	83	}
	84
	85	void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
	86	{
	87	if (psxUnmapHook != NULL) {
	88	psxUnmapHook(ptr, size, tag);
	89	return;
	90	}
	91
	92	munmap(ptr, size);
	93	}
	94
ef79bbde P	95	s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
	96	s8 *psxP = NULL; // Parallel Port (64K)
	97	s8 *psxR = NULL; // BIOS ROM (512K)
	98	s8 *psxH = NULL; // Scratch Pad (1K) & Hardware Registers (8K)
	99
	100	u8 **psxMemWLUT = NULL;
	101	u8 **psxMemRLUT = NULL;
	102
	103	/* Playstation Memory Map (from Playstation doc by Joshua Walker)
	104	0x0000_0000-0x0000_ffff Kernel (64K)
	105	0x0001_0000-0x001f_ffff User Memory (1.9 Meg)
	106
	107	0x1f00_0000-0x1f00_ffff Parallel Port (64K)
	108
	109	0x1f80_0000-0x1f80_03ff Scratch Pad (1024 bytes)
	110
	111	0x1f80_1000-0x1f80_2fff Hardware Registers (8K)
	112
	113	0x1fc0_0000-0x1fc7_ffff BIOS (512K)
	114
	115	0x8000_0000-0x801f_ffff Kernel and User Memory Mirror (2 Meg) Cached
	116	0x9fc0_0000-0x9fc7_ffff BIOS Mirror (512K) Cached
	117
	118	0xa000_0000-0xa01f_ffff Kernel and User Memory Mirror (2 Meg) Uncached
	119	0xbfc0_0000-0xbfc7_ffff BIOS Mirror (512K) Uncached
	120	*/
	121
	122	int psxMemInit() {
	123	int i;
	124
	125	psxMemRLUT = (u8 *)malloc(0x10000 sizeof(void *));
	126	psxMemWLUT = (u8 *)malloc(0x10000 sizeof(void *));
	127	memset(psxMemRLUT, 0, 0x10000 * sizeof(void *));
	128	memset(psxMemWLUT, 0, 0x10000 * sizeof(void *));
	129
87e5b45f	130	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
a327ad27	131	#ifndef RAM_FIXED
87e5b45f	132	if (psxM == NULL)
b0dd9956	133	psxM = psxMap(0x78000000, 0x00210000, 0, MAP_TAG_RAM);
a327ad27	134	#endif
87e5b45f	135	if (psxM == NULL) {
a327ad27	136	SysMessage(_("mapping main RAM failed"));
	137	return -1;
	138	}
ef79bbde P	139
ef79bbde P	140	psxP = &psxM[0x200000];
87e5b45f	141	psxH = psxMap(0x1f800000, 0x10000, 1, MAP_TAG_OTHER);
87e5b45f	142	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
ef79bbde P	143
ef79bbde P	144	if (psxMemRLUT == NULL \|\| psxMemWLUT == NULL \|\|
87e5b45f	145	psxR == NULL \|\| psxP == NULL \|\| psxH != (void *)0x1f800000) {
ef79bbde P	146	SysMessage(_("Error allocating memory!"));
	147	return -1;
	148	}
	149
	150	// MemR
	151	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	152
	153	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	154	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));
	155
	156	psxMemRLUT[0x1f00] = (u8 *)psxP;
	157	psxMemRLUT[0x1f80] = (u8 *)psxH;
	158
	159	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];
	160
	161	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	162	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	163
	164	// MemW
	165	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	166
	167	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	168	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	169
	170	psxMemWLUT[0x1f00] = (u8 *)psxP;
	171	psxMemWLUT[0x1f80] = (u8 *)psxH;
	172
	173	return 0;
	174	}
	175
	176	void psxMemReset() {
	177	FILE *f = NULL;
	178	char bios[1024];
	179
	180	memset(psxM, 0, 0x00200000);
	181	memset(psxP, 0, 0x00010000);
	182
	183	if (strcmp(Config.Bios, "HLE") != 0) {
	184	sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
	185	f = fopen(bios, "rb");
	186
	187	if (f == NULL) {
	188	SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
	189	memset(psxR, 0, 0x80000);
	190	Config.HLE = TRUE;
	191	} else {
	192	fread(psxR, 1, 0x80000, f);
	193	fclose(f);
	194	Config.HLE = FALSE;
	195	}
	196	} else Config.HLE = TRUE;
	197	}
	198
	199	void psxMemShutdown() {
87e5b45f	200	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
	201	psxUnmap(psxH, 0x1f800000, MAP_TAG_OTHER);
	202	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
ef79bbde	203
ef79bbde P	204	free(psxMemRLUT);
	205	free(psxMemWLUT);
	206	}
	207
	208	static int writeok = 1;
	209
	210	u8 psxMemRead8(u32 mem) {
	211	char *p;
	212	u32 t;
	213
	214	t = mem >> 16;
	215	if (t == 0x1f80) {
	216	if (mem < 0x1f801000)
	217	return psxHu8(mem);
	218	else
	219	return psxHwRead8(mem);
	220	} else {
	221	p = (char *)(psxMemRLUT[t]);
	222	if (p != NULL) {
	223	if (Config.Debug)
	224	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R1);
	225	return (u8 )(p + (mem & 0xffff));
	226	} else {
	227	#ifdef PSXMEM_LOG
	228	PSXMEM_LOG("err lb %8.8lx\n", mem);
	229	#endif
	230	return 0;
	231	}
	232	}
	233	}
	234
	235	u16 psxMemRead16(u32 mem) {
	236	char *p;
	237	u32 t;
	238
	239	t = mem >> 16;
	240	if (t == 0x1f80) {
	241	if (mem < 0x1f801000)
	242	return psxHu16(mem);
	243	else
	244	return psxHwRead16(mem);
	245	} else {
	246	p = (char *)(psxMemRLUT[t]);
	247	if (p != NULL) {
	248	if (Config.Debug)
	249	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R2);
	250	return SWAPu16((u16 )(p + (mem & 0xffff)));
	251	} else {
	252	#ifdef PSXMEM_LOG
	253	PSXMEM_LOG("err lh %8.8lx\n", mem);
	254	#endif
	255	return 0;
	256	}
	257	}
	258	}
	259
	260	u32 psxMemRead32(u32 mem) {
	261	char *p;
	262	u32 t;
	263
	264	t = mem >> 16;
	265	if (t == 0x1f80) {
	266	if (mem < 0x1f801000)
	267	return psxHu32(mem);
268	else
269	return psxHwRead32(mem);
270	} else {
271	p = (char *)(psxMemRLUT[t]);
272	if (p != NULL) {
273	if (Config.Debug)
274	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R4);
275	return SWAPu32((u32 )(p + (mem & 0xffff)));
276	} else {
277	#ifdef PSXMEM_LOG
278	if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
279	#endif
280	return 0;
281	}
282	}
283	}
284
285	void psxMemWrite8(u32 mem, u8 value) {
286	char *p;
287	u32 t;
288
289	t = mem >> 16;
290	if (t == 0x1f80) {
291	if (mem < 0x1f801000)
292	psxHu8(mem) = value;
293	else
294	psxHwWrite8(mem, value);
295	} else {
296	p = (char *)(psxMemWLUT[t]);
297	if (p != NULL) {
298	if (Config.Debug)
299	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W1);
300	(u8 )(p + (mem & 0xffff)) = value;
301	#ifdef PSXREC
302	psxCpu->Clear((mem & (~3)), 1);
303	#endif
304	} else {
305	#ifdef PSXMEM_LOG
306	PSXMEM_LOG("err sb %8.8lx\n", mem);
307	#endif
308	}
309	}
310	}
311
312	void psxMemWrite16(u32 mem, u16 value) {
313	char *p;
314	u32 t;
315
316	t = mem >> 16;
317	if (t == 0x1f80) {
318	if (mem < 0x1f801000)
319	psxHu16ref(mem) = SWAPu16(value);
320	else
321	psxHwWrite16(mem, value);
322	} else {
323	p = (char *)(psxMemWLUT[t]);
324	if (p != NULL) {
325	if (Config.Debug)
326	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W2);
327	(u16 )(p + (mem & 0xffff)) = SWAPu16(value);
328	#ifdef PSXREC
3e31e934	329	psxCpu->Clear((mem & (~3)), 1);
ef79bbde P	330	#endif
	331	} else {
	332	#ifdef PSXMEM_LOG
	333	PSXMEM_LOG("err sh %8.8lx\n", mem);
	334	#endif
	335	}
	336	}
	337	}
	338
	339	void psxMemWrite32(u32 mem, u32 value) {
	340	char *p;
	341	u32 t;
	342
	343	// if ((mem&0x1fffff) == 0x71E18 \|\| value == 0x48088800) SysPrintf("t2fix!!\n");
	344	t = mem >> 16;
	345	if (t == 0x1f80) {
	346	if (mem < 0x1f801000)
	347	psxHu32ref(mem) = SWAPu32(value);
	348	else
	349	psxHwWrite32(mem, value);
	350	} else {
	351	p = (char *)(psxMemWLUT[t]);
	352	if (p != NULL) {
	353	if (Config.Debug)
	354	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W4);
	355	(u32 )(p + (mem & 0xffff)) = SWAPu32(value);
	356	#ifdef PSXREC
	357	psxCpu->Clear(mem, 1);
	358	#endif
	359	} else {
	360	if (mem != 0xfffe0130) {
	361	#ifdef PSXREC
	362	if (!writeok)
	363	psxCpu->Clear(mem, 1);
	364	#endif
	365
	366	#ifdef PSXMEM_LOG
	367	if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); }
	368	#endif
	369	} else {
	370	int i;
	371
	372	switch (value) {
	373	case 0x800: case 0x804:
	374	if (writeok == 0) break;
	375	writeok = 0;
	376	memset(psxMemWLUT + 0x0000, 0, 0x80 * sizeof(void *));
	377	memset(psxMemWLUT + 0x8000, 0, 0x80 * sizeof(void *));
	378	memset(psxMemWLUT + 0xa000, 0, 0x80 * sizeof(void *));
	379	break;
	380	case 0x00: case 0x1e988:
	381	if (writeok == 1) break;
	382	writeok = 1;
	383	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
	384	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	385	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	386	break;
	387	default:
	388	#ifdef PSXMEM_LOG
	389	PSXMEM_LOG("unk %8.8lx = %x\n", mem, value);
	390	#endif
	391	break;
	392	}
	393	}
394	}
395	}
396	}
397
398	void *psxMemPointer(u32 mem) {
399	char *p;
400	u32 t;
401
402	t = mem >> 16;
403	if (t == 0x1f80) {
404	if (mem < 0x1f801000)
405	return (void *)&psxH[mem];
406	else
407	return NULL;
408	} else {
409	p = (char *)(psxMemWLUT[t]);
410	if (p != NULL) {
411	return (void *)(p + (mem & 0xffff));
412	}
413	return NULL;
414	}
415	}