[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;
	void *req, *ret;

	if (psxMapHook != NULL)
		return psxMapHook(addr, size, is_fixed, tag);

	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 (req != NULL && ret != req)
		SysMessage("psxMap: warning: wanted to map @%p, got %p\n",
			req, ret);

	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(0x70000000, 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;
	45	void req, ret;
	46
	47	if (psxMapHook != NULL)
	48	return psxMapHook(addr, size, is_fixed, tag);
	49
	50	if (is_fixed)
	51	flags \|= MAP_FIXED;
	52
	53	req = (void *)addr;
	54	ret = mmap(req, size, PROT_READ \| PROT_WRITE, flags, -1, 0);
	55	if (ret == MAP_FAILED)
	56	return NULL;
	57
8ad120c9	58	if (req != NULL && ret != req)
87e5b45f	59	SysMessage("psxMap: warning: wanted to map @%p, got %p\n",
	60	req, ret);
	61
	62	return ret;
	63	}
	64
	65	void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
	66	{
	67	if (psxUnmapHook != NULL) {
	68	psxUnmapHook(ptr, size, tag);
	69	return;
	70	}
	71
	72	munmap(ptr, size);
	73	}
	74
ef79bbde P	75	s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
	76	s8 *psxP = NULL; // Parallel Port (64K)
	77	s8 *psxR = NULL; // BIOS ROM (512K)
	78	s8 *psxH = NULL; // Scratch Pad (1K) & Hardware Registers (8K)
	79
	80	u8 **psxMemWLUT = NULL;
	81	u8 **psxMemRLUT = NULL;
	82
	83	/* Playstation Memory Map (from Playstation doc by Joshua Walker)
	84	0x0000_0000-0x0000_ffff Kernel (64K)
	85	0x0001_0000-0x001f_ffff User Memory (1.9 Meg)
	86
	87	0x1f00_0000-0x1f00_ffff Parallel Port (64K)
	88
	89	0x1f80_0000-0x1f80_03ff Scratch Pad (1024 bytes)
	90
	91	0x1f80_1000-0x1f80_2fff Hardware Registers (8K)
	92
	93	0x1fc0_0000-0x1fc7_ffff BIOS (512K)
	94
	95	0x8000_0000-0x801f_ffff Kernel and User Memory Mirror (2 Meg) Cached
	96	0x9fc0_0000-0x9fc7_ffff BIOS Mirror (512K) Cached
	97
	98	0xa000_0000-0xa01f_ffff Kernel and User Memory Mirror (2 Meg) Uncached
	99	0xbfc0_0000-0xbfc7_ffff BIOS Mirror (512K) Uncached
	100	*/
	101
	102	int psxMemInit() {
	103	int i;
	104
	105	psxMemRLUT = (u8 *)malloc(0x10000 sizeof(void *));
	106	psxMemWLUT = (u8 *)malloc(0x10000 sizeof(void *));
	107	memset(psxMemRLUT, 0, 0x10000 * sizeof(void *));
	108	memset(psxMemWLUT, 0, 0x10000 * sizeof(void *));
	109
87e5b45f	110	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
a327ad27	111	#ifndef RAM_FIXED
87e5b45f	112	if (psxM == NULL)
87e5b45f	113	psxM = psxMap(0x70000000, 0x00210000, 0, MAP_TAG_RAM);
a327ad27	114	#endif
87e5b45f	115	if (psxM == NULL) {
a327ad27	116	SysMessage(_("mapping main RAM failed"));
	117	return -1;
	118	}
ef79bbde P	119
ef79bbde P	120	psxP = &psxM[0x200000];
87e5b45f	121	psxH = psxMap(0x1f800000, 0x10000, 1, MAP_TAG_OTHER);
87e5b45f	122	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
ef79bbde P	123
ef79bbde P	124	if (psxMemRLUT == NULL \|\| psxMemWLUT == NULL \|\|
87e5b45f	125	psxR == NULL \|\| psxP == NULL \|\| psxH != (void *)0x1f800000) {
ef79bbde P	126	SysMessage(_("Error allocating memory!"));
	127	return -1;
	128	}
	129
	130	// MemR
	131	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	132
	133	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	134	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));
	135
	136	psxMemRLUT[0x1f00] = (u8 *)psxP;
	137	psxMemRLUT[0x1f80] = (u8 *)psxH;
	138
	139	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];
	140
	141	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	142	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	143
	144	// MemW
	145	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	146
	147	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	148	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	149
	150	psxMemWLUT[0x1f00] = (u8 *)psxP;
	151	psxMemWLUT[0x1f80] = (u8 *)psxH;
	152
	153	return 0;
	154	}
	155
	156	void psxMemReset() {
	157	FILE *f = NULL;
	158	char bios[1024];
	159
	160	memset(psxM, 0, 0x00200000);
	161	memset(psxP, 0, 0x00010000);
	162
	163	if (strcmp(Config.Bios, "HLE") != 0) {
	164	sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
	165	f = fopen(bios, "rb");
	166
	167	if (f == NULL) {
	168	SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
	169	memset(psxR, 0, 0x80000);
	170	Config.HLE = TRUE;
	171	} else {
	172	fread(psxR, 1, 0x80000, f);
	173	fclose(f);
	174	Config.HLE = FALSE;
	175	}
	176	} else Config.HLE = TRUE;
	177	}
	178
	179	void psxMemShutdown() {
87e5b45f	180	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
	181	psxUnmap(psxH, 0x1f800000, MAP_TAG_OTHER);
	182	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
ef79bbde	183
ef79bbde P	184	free(psxMemRLUT);
	185	free(psxMemWLUT);
	186	}
	187
	188	static int writeok = 1;
	189
	190	u8 psxMemRead8(u32 mem) {
	191	char *p;
	192	u32 t;
	193
	194	t = mem >> 16;
	195	if (t == 0x1f80) {
	196	if (mem < 0x1f801000)
	197	return psxHu8(mem);
	198	else
	199	return psxHwRead8(mem);
	200	} else {
	201	p = (char *)(psxMemRLUT[t]);
	202	if (p != NULL) {
	203	if (Config.Debug)
	204	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R1);
	205	return (u8 )(p + (mem & 0xffff));
	206	} else {
	207	#ifdef PSXMEM_LOG
	208	PSXMEM_LOG("err lb %8.8lx\n", mem);
	209	#endif
	210	return 0;
	211	}
	212	}
	213	}
	214
	215	u16 psxMemRead16(u32 mem) {
	216	char *p;
	217	u32 t;
	218
	219	t = mem >> 16;
	220	if (t == 0x1f80) {
	221	if (mem < 0x1f801000)
	222	return psxHu16(mem);
	223	else
	224	return psxHwRead16(mem);
	225	} else {
	226	p = (char *)(psxMemRLUT[t]);
	227	if (p != NULL) {
	228	if (Config.Debug)
	229	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R2);
	230	return SWAPu16((u16 )(p + (mem & 0xffff)));
	231	} else {
	232	#ifdef PSXMEM_LOG
	233	PSXMEM_LOG("err lh %8.8lx\n", mem);
	234	#endif
	235	return 0;
	236	}
	237	}
	238	}
	239
	240	u32 psxMemRead32(u32 mem) {
	241	char *p;
	242	u32 t;
	243
	244	t = mem >> 16;
	245	if (t == 0x1f80) {
	246	if (mem < 0x1f801000)
	247	return psxHu32(mem);
248	else
249	return psxHwRead32(mem);
250	} else {
251	p = (char *)(psxMemRLUT[t]);
252	if (p != NULL) {
253	if (Config.Debug)
254	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R4);
255	return SWAPu32((u32 )(p + (mem & 0xffff)));
256	} else {
257	#ifdef PSXMEM_LOG
258	if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
259	#endif
260	return 0;
261	}
262	}
263	}
264
265	void psxMemWrite8(u32 mem, u8 value) {
266	char *p;
267	u32 t;
268
269	t = mem >> 16;
270	if (t == 0x1f80) {
271	if (mem < 0x1f801000)
272	psxHu8(mem) = value;
273	else
274	psxHwWrite8(mem, value);
275	} else {
276	p = (char *)(psxMemWLUT[t]);
277	if (p != NULL) {
278	if (Config.Debug)
279	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W1);
280	(u8 )(p + (mem & 0xffff)) = value;
281	#ifdef PSXREC
282	psxCpu->Clear((mem & (~3)), 1);
283	#endif
284	} else {
285	#ifdef PSXMEM_LOG
286	PSXMEM_LOG("err sb %8.8lx\n", mem);
287	#endif
288	}
289	}
290	}
291
292	void psxMemWrite16(u32 mem, u16 value) {
293	char *p;
294	u32 t;
295
296	t = mem >> 16;
297	if (t == 0x1f80) {
298	if (mem < 0x1f801000)
299	psxHu16ref(mem) = SWAPu16(value);
300	else
301	psxHwWrite16(mem, value);
302	} else {
303	p = (char *)(psxMemWLUT[t]);
304	if (p != NULL) {
305	if (Config.Debug)
306	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W2);
307	(u16 )(p + (mem & 0xffff)) = SWAPu16(value);
308	#ifdef PSXREC
3e31e934	309	psxCpu->Clear((mem & (~3)), 1);
ef79bbde P	310	#endif
	311	} else {
	312	#ifdef PSXMEM_LOG
	313	PSXMEM_LOG("err sh %8.8lx\n", mem);
	314	#endif
	315	}
	316	}
	317	}
	318
	319	void psxMemWrite32(u32 mem, u32 value) {
	320	char *p;
	321	u32 t;
	322
	323	// if ((mem&0x1fffff) == 0x71E18 \|\| value == 0x48088800) SysPrintf("t2fix!!\n");
	324	t = mem >> 16;
	325	if (t == 0x1f80) {
	326	if (mem < 0x1f801000)
	327	psxHu32ref(mem) = SWAPu32(value);
	328	else
	329	psxHwWrite32(mem, value);
	330	} else {
	331	p = (char *)(psxMemWLUT[t]);
	332	if (p != NULL) {
	333	if (Config.Debug)
	334	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W4);
	335	(u32 )(p + (mem & 0xffff)) = SWAPu32(value);
	336	#ifdef PSXREC
	337	psxCpu->Clear(mem, 1);
	338	#endif
	339	} else {
	340	if (mem != 0xfffe0130) {
	341	#ifdef PSXREC
	342	if (!writeok)
	343	psxCpu->Clear(mem, 1);
	344	#endif
	345
	346	#ifdef PSXMEM_LOG
	347	if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); }
	348	#endif
	349	} else {
	350	int i;
	351
	352	switch (value) {
	353	case 0x800: case 0x804:
	354	if (writeok == 0) break;
	355	writeok = 0;
	356	memset(psxMemWLUT + 0x0000, 0, 0x80 * sizeof(void *));
	357	memset(psxMemWLUT + 0x8000, 0, 0x80 * sizeof(void *));
	358	memset(psxMemWLUT + 0xa000, 0, 0x80 * sizeof(void *));
	359	break;
	360	case 0x00: case 0x1e988:
	361	if (writeok == 1) break;
	362	writeok = 1;
	363	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
	364	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	365	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	366	break;
	367	default:
	368	#ifdef PSXMEM_LOG
	369	PSXMEM_LOG("unk %8.8lx = %x\n", mem, value);
	370	#endif
	371	break;
	372	}
	373	}
374	}
375	}
376	}
377
378	void *psxMemPointer(u32 mem) {
379	char *p;
380	u32 t;
381
382	t = mem >> 16;
383	if (t == 0x1f80) {
384	if (mem < 0x1f801000)
385	return (void *)&psxH[mem];
386	else
387	return NULL;
388	} else {
389	p = (char *)(psxMemWLUT[t]);
390	if (p != NULL) {
391	return (void *)(p + (mem & 0xffff));
392	}
393	return NULL;
394	}
395	}