[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"
#define DebugCheckBP(...)

#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)
{
	int flags = MAP_PRIVATE | MAP_ANONYMOUS;
	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 *));

	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
	if (psxM == NULL)
		psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
	if (psxM == NULL) {
		SysMessage(_("mapping main RAM failed"));
		return -1;
	}

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

	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 *));

	// Don't allow writes to PIO Expansion region (psxP) to take effect.
	// NOTE: Not sure if this is needed to fix any games but seems wise,
	//       seeing as some games do read from PIO as part of copy-protection
	//       check. (See fix in psxMemReset() regarding psxP region reads).
	psxMemWLUT[0x1f00] = NULL;
	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 0xFF;
		}
	}
}

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 0xFFFF;
		}
	}
}

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 0xFFFFFFFF;
		}
	}
}

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;
#ifndef DRC_DISABLE
			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);
#ifndef DRC_DISABLE
			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);
#ifndef DRC_DISABLE
			psxCpu->Clear(mem, 1);
#endif
		} else {
			if (mem != 0xfffe0130) {
#ifndef DRC_DISABLE
				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 *));
						/* Required for icache interpreter otherwise Armored Core won't boot on icache interpreter */
						psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_ISOLATED, NULL);
						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 *));
						/* Dynarecs might take this opportunity to flush their code cache */
						psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
						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"
7d7672a5	30	//#include "debug.h"
7d7672a5	31	#define DebugCheckBP(...)
ce0e7ac9	32
ce0e7ac9	33	#include "memmap.h"
ef79bbde P	34
	35	#ifndef MAP_ANONYMOUS
	36	#define MAP_ANONYMOUS MAP_ANON
	37	#endif
	38
87e5b45f	39	void (psxMapHook)(unsigned long addr, size_t size, int is_fixed,
	40	enum psxMapTag tag);
	41	void (psxUnmapHook)(void ptr, size_t size, enum psxMapTag tag);
	42
	43	void *psxMap(unsigned long addr, size_t size, int is_fixed,
	44	enum psxMapTag tag)
	45	{
	46	int flags = MAP_PRIVATE \| MAP_ANONYMOUS;
5644b26c	47	int try_ = 0;
b0dd9956	48	unsigned long mask;
87e5b45f	49	void req, ret;
87e5b45f	50
b0dd9956	51	retry:
b0dd9956	52	if (psxMapHook != NULL) {
85f23982	53	ret = psxMapHook(addr, size, 0, tag);
	54	if (ret == NULL)
	55	return NULL;
	56	}
	57	else {
	58	/* avoid MAP_FIXED, it overrides existing mappings.. */
	59	/* if (is_fixed)
	60	flags \|= MAP_FIXED; */
	61
	62	req = (void *)addr;
	63	ret = mmap(req, size, PROT_READ \| PROT_WRITE, flags, -1, 0);
	64	if (ret == MAP_FAILED)
	65	return NULL;
b0dd9956	66	}
87e5b45f	67
b0dd9956	68	if (addr != 0 && ret != (void *)addr) {
	69	SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
	70	addr, ret);
	71
0069615f	72	if (is_fixed) {
	73	psxUnmap(ret, size, tag);
	74	return NULL;
	75	}
	76
5644b26c	77	if (((addr ^ (unsigned long)ret) & ~0xff000000l) && try_ < 2)
b0dd9956	78	{
	79	psxUnmap(ret, size, tag);
	80
	81	// try to use similarly aligned memory instead
	82	// (recompiler needs this)
5644b26c	83	mask = try_ ? 0xffff : 0xffffff;
	84	addr = ((unsigned long)ret + mask) & ~mask;
	85	try_++;
b0dd9956	86	goto retry;
	87	}
	88	}
87e5b45f	89
	90	return ret;
	91	}
	92
	93	void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
	94	{
	95	if (psxUnmapHook != NULL) {
	96	psxUnmapHook(ptr, size, tag);
	97	return;
	98	}
	99
88901dd2	100	if (ptr)
88901dd2	101	munmap(ptr, size);
87e5b45f	102	}
87e5b45f	103
ef79bbde P	104	s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
	105	s8 *psxP = NULL; // Parallel Port (64K)
	106	s8 *psxR = NULL; // BIOS ROM (512K)
	107	s8 *psxH = NULL; // Scratch Pad (1K) & Hardware Registers (8K)
	108
	109	u8 **psxMemWLUT = NULL;
	110	u8 **psxMemRLUT = NULL;
	111
	112	/* Playstation Memory Map (from Playstation doc by Joshua Walker)
	113	0x0000_0000-0x0000_ffff Kernel (64K)
	114	0x0001_0000-0x001f_ffff User Memory (1.9 Meg)
	115
	116	0x1f00_0000-0x1f00_ffff Parallel Port (64K)
	117
	118	0x1f80_0000-0x1f80_03ff Scratch Pad (1024 bytes)
	119
	120	0x1f80_1000-0x1f80_2fff Hardware Registers (8K)
	121
	122	0x1fc0_0000-0x1fc7_ffff BIOS (512K)
	123
	124	0x8000_0000-0x801f_ffff Kernel and User Memory Mirror (2 Meg) Cached
	125	0x9fc0_0000-0x9fc7_ffff BIOS Mirror (512K) Cached
	126
	127	0xa000_0000-0xa01f_ffff Kernel and User Memory Mirror (2 Meg) Uncached
	128	0xbfc0_0000-0xbfc7_ffff BIOS Mirror (512K) Uncached
	129	*/
	130
	131	int psxMemInit() {
	132	int i;
	133
	134	psxMemRLUT = (u8 *)malloc(0x10000 sizeof(void *));
	135	psxMemWLUT = (u8 *)malloc(0x10000 sizeof(void *));
	136	memset(psxMemRLUT, 0, 0x10000 * sizeof(void *));
	137	memset(psxMemWLUT, 0, 0x10000 * sizeof(void *));
	138
87e5b45f	139	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
a4874585	140	if (psxM == NULL)
f23d3386	141	psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
87e5b45f	142	if (psxM == NULL) {
a327ad27	143	SysMessage(_("mapping main RAM failed"));
	144	return -1;
	145	}
ef79bbde P	146
ef79bbde P	147	psxP = &psxM[0x200000];
6d760c92	148	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
87e5b45f	149	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
ef79bbde P	150
ef79bbde P	151	if (psxMemRLUT == NULL \|\| psxMemWLUT == NULL \|\|
6d760c92	152	psxR == NULL \|\| psxP == NULL \|\| psxH == NULL) {
ef79bbde	153	SysMessage(_("Error allocating memory!"));
88901dd2	154	psxMemShutdown();
ef79bbde P	155	return -1;
	156	}
	157
	158	// MemR
	159	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	160
	161	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	162	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));
	163
	164	psxMemRLUT[0x1f00] = (u8 *)psxP;
	165	psxMemRLUT[0x1f80] = (u8 *)psxH;
	166
	167	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];
	168
	169	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	170	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	171
	172	// MemW
	173	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	174
	175	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	176	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	177
fa18abb2	178	// Don't allow writes to PIO Expansion region (psxP) to take effect.
	179	// NOTE: Not sure if this is needed to fix any games but seems wise,
	180	// seeing as some games do read from PIO as part of copy-protection
	181	// check. (See fix in psxMemReset() regarding psxP region reads).
	182	psxMemWLUT[0x1f00] = NULL;
ef79bbde P	183	psxMemWLUT[0x1f80] = (u8 *)psxH;
	184
	185	return 0;
	186	}
	187
	188	void psxMemReset() {
	189	FILE *f = NULL;
	190	char bios[1024];
	191
	192	memset(psxM, 0, 0x00200000);
23643ee7	193	memset(psxP, 0xff, 0x00010000);
ef79bbde P	194
	195	if (strcmp(Config.Bios, "HLE") != 0) {
	196	sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
	197	f = fopen(bios, "rb");
	198
	199	if (f == NULL) {
	200	SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
	201	memset(psxR, 0, 0x80000);
	202	Config.HLE = TRUE;
	203	} else {
	204	fread(psxR, 1, 0x80000, f);
	205	fclose(f);
	206	Config.HLE = FALSE;
	207	}
	208	} else Config.HLE = TRUE;
	209	}
	210
	211	void psxMemShutdown() {
88901dd2	212	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM); psxM = NULL;
	213	psxUnmap(psxH, 0x10000, MAP_TAG_OTHER); psxH = NULL;
	214	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER); psxR = NULL;
ef79bbde	215
88901dd2	216	free(psxMemRLUT); psxMemRLUT = NULL;
88901dd2	217	free(psxMemWLUT); psxMemWLUT = NULL;
ef79bbde P	218	}
	219
	220	static int writeok = 1;
	221
	222	u8 psxMemRead8(u32 mem) {
	223	char *p;
	224	u32 t;
	225
	226	t = mem >> 16;
9dd7d179	227	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	228	if ((mem & 0xffff) < 0x400)
ef79bbde P	229	return psxHu8(mem);
	230	else
	231	return psxHwRead8(mem);
	232	} else {
	233	p = (char *)(psxMemRLUT[t]);
	234	if (p != NULL) {
	235	if (Config.Debug)
	236	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R1);
	237	return (u8 )(p + (mem & 0xffff));
	238	} else {
	239	#ifdef PSXMEM_LOG
	240	PSXMEM_LOG("err lb %8.8lx\n", mem);
	241	#endif
943a507a	242	return 0xFF;
ef79bbde P	243	}
	244	}
	245	}
	246
	247	u16 psxMemRead16(u32 mem) {
	248	char *p;
	249	u32 t;
	250
	251	t = mem >> 16;
9dd7d179	252	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	253	if ((mem & 0xffff) < 0x400)
ef79bbde P	254	return psxHu16(mem);
	255	else
	256	return psxHwRead16(mem);
	257	} else {
	258	p = (char *)(psxMemRLUT[t]);
	259	if (p != NULL) {
	260	if (Config.Debug)
	261	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R2);
	262	return SWAPu16((u16 )(p + (mem & 0xffff)));
	263	} else {
	264	#ifdef PSXMEM_LOG
	265	PSXMEM_LOG("err lh %8.8lx\n", mem);
	266	#endif
943a507a	267	return 0xFFFF;
ef79bbde P	268	}
	269	}
	270	}
	271
	272	u32 psxMemRead32(u32 mem) {
	273	char *p;
	274	u32 t;
	275
	276	t = mem >> 16;
9dd7d179	277	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	278	if ((mem & 0xffff) < 0x400)
ef79bbde P	279	return psxHu32(mem);
	280	else
	281	return psxHwRead32(mem);
	282	} else {
	283	p = (char *)(psxMemRLUT[t]);
	284	if (p != NULL) {
	285	if (Config.Debug)
	286	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R4);
	287	return SWAPu32((u32 )(p + (mem & 0xffff)));
	288	} else {
	289	#ifdef PSXMEM_LOG
	290	if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
	291	#endif
943a507a	292	return 0xFFFFFFFF;
ef79bbde P	293	}
	294	}
	295	}
	296
	297	void psxMemWrite8(u32 mem, u8 value) {
	298	char *p;
	299	u32 t;
	300
	301	t = mem >> 16;
9dd7d179	302	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	303	if ((mem & 0xffff) < 0x400)
ef79bbde P	304	psxHu8(mem) = value;
	305	else
	306	psxHwWrite8(mem, value);
	307	} else {
	308	p = (char *)(psxMemWLUT[t]);
	309	if (p != NULL) {
	310	if (Config.Debug)
	311	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W1);
	312	(u8 )(p + (mem & 0xffff)) = value;
41e82ad4	313	#ifndef DRC_DISABLE
ef79bbde P	314	psxCpu->Clear((mem & (~3)), 1);
	315	#endif
	316	} else {
	317	#ifdef PSXMEM_LOG
	318	PSXMEM_LOG("err sb %8.8lx\n", mem);
	319	#endif
	320	}
	321	}
	322	}
	323
	324	void psxMemWrite16(u32 mem, u16 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	psxHu16ref(mem) = SWAPu16(value);
	332	else
	333	psxHwWrite16(mem, value);
	334	} else {
	335	p = (char *)(psxMemWLUT[t]);
	336	if (p != NULL) {
	337	if (Config.Debug)
	338	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W2);
	339	(u16 )(p + (mem & 0xffff)) = SWAPu16(value);
41e82ad4	340	#ifndef DRC_DISABLE
3e31e934	341	psxCpu->Clear((mem & (~3)), 1);
ef79bbde P	342	#endif
	343	} else {
	344	#ifdef PSXMEM_LOG
	345	PSXMEM_LOG("err sh %8.8lx\n", mem);
	346	#endif
	347	}
	348	}
	349	}
	350
	351	void psxMemWrite32(u32 mem, u32 value) {
	352	char *p;
	353	u32 t;
	354
	355	// if ((mem&0x1fffff) == 0x71E18 \|\| value == 0x48088800) SysPrintf("t2fix!!\n");
	356	t = mem >> 16;
9dd7d179	357	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	358	if ((mem & 0xffff) < 0x400)
ef79bbde P	359	psxHu32ref(mem) = SWAPu32(value);
	360	else
	361	psxHwWrite32(mem, value);
	362	} else {
	363	p = (char *)(psxMemWLUT[t]);
	364	if (p != NULL) {
	365	if (Config.Debug)
	366	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W4);
	367	(u32 )(p + (mem & 0xffff)) = SWAPu32(value);
41e82ad4	368	#ifndef DRC_DISABLE
ef79bbde P	369	psxCpu->Clear(mem, 1);
	370	#endif
	371	} else {
	372	if (mem != 0xfffe0130) {
41e82ad4	373	#ifndef DRC_DISABLE
ef79bbde P	374	if (!writeok)
	375	psxCpu->Clear(mem, 1);
	376	#endif
	377
	378	#ifdef PSXMEM_LOG
	379	if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); }
	380	#endif
	381	} else {
	382	int i;
	383
	384	switch (value) {
	385	case 0x800: case 0x804:
	386	if (writeok == 0) break;
	387	writeok = 0;
	388	memset(psxMemWLUT + 0x0000, 0, 0x80 * sizeof(void *));
	389	memset(psxMemWLUT + 0x8000, 0, 0x80 * sizeof(void *));
	390	memset(psxMemWLUT + 0xa000, 0, 0x80 * sizeof(void *));
7bbabe80	391	/* Required for icache interpreter otherwise Armored Core won't boot on icache interpreter */
7bbabe80	392	psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_ISOLATED, NULL);
ef79bbde P	393	break;
	394	case 0x00: case 0x1e988:
	395	if (writeok == 1) break;
	396	writeok = 1;
	397	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
	398	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	399	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
7bbabe80	400	/* Dynarecs might take this opportunity to flush their code cache */
7bbabe80	401	psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
ef79bbde P	402	break;
	403	default:
	404	#ifdef PSXMEM_LOG
	405	PSXMEM_LOG("unk %8.8lx = %x\n", mem, value);
	406	#endif
	407	break;
	408	}
	409	}
	410	}
	411	}
	412	}
	413
	414	void *psxMemPointer(u32 mem) {
	415	char *p;
	416	u32 t;
	417
	418	t = mem >> 16;
9dd7d179	419	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	420	if ((mem & 0xffff) < 0x400)
ef79bbde P	421	return (void *)&psxH[mem];
	422	else
	423	return NULL;
	424	} else {
	425	p = (char *)(psxMemWLUT[t]);
	426	if (p != NULL) {
	427	return (void *)(p + (mem & 0xffff));
	428	}
	429	return NULL;
	430	}
	431	}