[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

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