[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)
{
	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"
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	{
	45	int flags = MAP_PRIVATE \| MAP_ANONYMOUS;
5644b26c	46	int try_ = 0;
b0dd9956	47	unsigned long mask;
87e5b45f	48	void req, ret;
87e5b45f	49
b0dd9956	50	retry:
b0dd9956	51	if (psxMapHook != NULL) {
85f23982	52	ret = psxMapHook(addr, size, 0, tag);
	53	if (ret == NULL)
	54	return NULL;
	55	}
	56	else {
	57	/* avoid MAP_FIXED, it overrides existing mappings.. */
	58	/* if (is_fixed)
	59	flags \|= MAP_FIXED; */
	60
	61	req = (void *)addr;
	62	ret = mmap(req, size, PROT_READ \| PROT_WRITE, flags, -1, 0);
	63	if (ret == MAP_FAILED)
	64	return NULL;
b0dd9956	65	}
87e5b45f	66
b0dd9956	67	if (addr != 0 && ret != (void *)addr) {
	68	SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
	69	addr, ret);
	70
0069615f	71	if (is_fixed) {
	72	psxUnmap(ret, size, tag);
	73	return NULL;
	74	}
	75
5644b26c	76	if (((addr ^ (unsigned long)ret) & ~0xff000000l) && try_ < 2)
b0dd9956	77	{
	78	psxUnmap(ret, size, tag);
	79
	80	// try to use similarly aligned memory instead
	81	// (recompiler needs this)
5644b26c	82	mask = try_ ? 0xffff : 0xffffff;
	83	addr = ((unsigned long)ret + mask) & ~mask;
	84	try_++;
b0dd9956	85	goto retry;
	86	}
	87	}
87e5b45f	88
	89	return ret;
	90	}
	91
	92	void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
	93	{
	94	if (psxUnmapHook != NULL) {
	95	psxUnmapHook(ptr, size, tag);
	96	return;
	97	}
	98
88901dd2	99	if (ptr)
88901dd2	100	munmap(ptr, size);
87e5b45f	101	}
87e5b45f	102
ef79bbde P	103	s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
	104	s8 *psxP = NULL; // Parallel Port (64K)
	105	s8 *psxR = NULL; // BIOS ROM (512K)
	106	s8 *psxH = NULL; // Scratch Pad (1K) & Hardware Registers (8K)
	107
	108	u8 **psxMemWLUT = NULL;
	109	u8 **psxMemRLUT = NULL;
	110
	111	/* Playstation Memory Map (from Playstation doc by Joshua Walker)
	112	0x0000_0000-0x0000_ffff Kernel (64K)
	113	0x0001_0000-0x001f_ffff User Memory (1.9 Meg)
	114
	115	0x1f00_0000-0x1f00_ffff Parallel Port (64K)
	116
	117	0x1f80_0000-0x1f80_03ff Scratch Pad (1024 bytes)
	118
	119	0x1f80_1000-0x1f80_2fff Hardware Registers (8K)
	120
	121	0x1fc0_0000-0x1fc7_ffff BIOS (512K)
	122
	123	0x8000_0000-0x801f_ffff Kernel and User Memory Mirror (2 Meg) Cached
	124	0x9fc0_0000-0x9fc7_ffff BIOS Mirror (512K) Cached
	125
	126	0xa000_0000-0xa01f_ffff Kernel and User Memory Mirror (2 Meg) Uncached
	127	0xbfc0_0000-0xbfc7_ffff BIOS Mirror (512K) Uncached
	128	*/
	129
	130	int psxMemInit() {
	131	int i;
	132
	133	psxMemRLUT = (u8 *)malloc(0x10000 sizeof(void *));
	134	psxMemWLUT = (u8 *)malloc(0x10000 sizeof(void *));
	135	memset(psxMemRLUT, 0, 0x10000 * sizeof(void *));
	136	memset(psxMemWLUT, 0, 0x10000 * sizeof(void *));
	137
87e5b45f	138	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
a4874585	139	if (psxM == NULL)
f23d3386	140	psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
87e5b45f	141	if (psxM == NULL) {
a327ad27	142	SysMessage(_("mapping main RAM failed"));
	143	return -1;
	144	}
ef79bbde P	145
ef79bbde P	146	psxP = &psxM[0x200000];
6d760c92	147	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
87e5b45f	148	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
ef79bbde P	149
ef79bbde P	150	if (psxMemRLUT == NULL \|\| psxMemWLUT == NULL \|\|
6d760c92	151	psxR == NULL \|\| psxP == NULL \|\| psxH == NULL) {
ef79bbde	152	SysMessage(_("Error allocating memory!"));
88901dd2	153	psxMemShutdown();
ef79bbde P	154	return -1;
	155	}
	156
	157	// MemR
	158	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	159
	160	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	161	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));
	162
	163	psxMemRLUT[0x1f00] = (u8 *)psxP;
	164	psxMemRLUT[0x1f80] = (u8 *)psxH;
	165
	166	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];
	167
	168	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	169	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	170
	171	// MemW
	172	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	173
	174	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	175	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	176
fa18abb2	177	// Don't allow writes to PIO Expansion region (psxP) to take effect.
	178	// NOTE: Not sure if this is needed to fix any games but seems wise,
	179	// seeing as some games do read from PIO as part of copy-protection
	180	// check. (See fix in psxMemReset() regarding psxP region reads).
	181	psxMemWLUT[0x1f00] = NULL;
ef79bbde P	182	psxMemWLUT[0x1f80] = (u8 *)psxH;
	183
	184	return 0;
	185	}
	186
	187	void psxMemReset() {
	188	FILE *f = NULL;
	189	char bios[1024];
	190
	191	memset(psxM, 0, 0x00200000);
23643ee7	192	memset(psxP, 0xff, 0x00010000);
ef79bbde P	193
	194	if (strcmp(Config.Bios, "HLE") != 0) {
	195	sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
	196	f = fopen(bios, "rb");
	197
	198	if (f == NULL) {
	199	SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
	200	memset(psxR, 0, 0x80000);
	201	Config.HLE = TRUE;
	202	} else {
	203	fread(psxR, 1, 0x80000, f);
	204	fclose(f);
	205	Config.HLE = FALSE;
	206	}
	207	} else Config.HLE = TRUE;
	208	}
	209
	210	void psxMemShutdown() {
88901dd2	211	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM); psxM = NULL;
	212	psxUnmap(psxH, 0x10000, MAP_TAG_OTHER); psxH = NULL;
	213	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER); psxR = NULL;
ef79bbde	214
88901dd2	215	free(psxMemRLUT); psxMemRLUT = NULL;
88901dd2	216	free(psxMemWLUT); psxMemWLUT = NULL;
ef79bbde P	217	}
	218
	219	static int writeok = 1;
	220
	221	u8 psxMemRead8(u32 mem) {
	222	char *p;
	223	u32 t;
	224
	225	t = mem >> 16;
9dd7d179	226	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	227	if ((mem & 0xffff) < 0x400)
ef79bbde P	228	return psxHu8(mem);
	229	else
	230	return psxHwRead8(mem);
	231	} else {
	232	p = (char *)(psxMemRLUT[t]);
	233	if (p != NULL) {
	234	if (Config.Debug)
	235	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R1);
	236	return (u8 )(p + (mem & 0xffff));
	237	} else {
	238	#ifdef PSXMEM_LOG
	239	PSXMEM_LOG("err lb %8.8lx\n", mem);
	240	#endif
943a507a	241	return 0xFF;
ef79bbde P	242	}
	243	}
	244	}
	245
	246	u16 psxMemRead16(u32 mem) {
	247	char *p;
	248	u32 t;
	249
	250	t = mem >> 16;
9dd7d179	251	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	252	if ((mem & 0xffff) < 0x400)
ef79bbde P	253	return psxHu16(mem);
	254	else
	255	return psxHwRead16(mem);
	256	} else {
	257	p = (char *)(psxMemRLUT[t]);
	258	if (p != NULL) {
	259	if (Config.Debug)
	260	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R2);
	261	return SWAPu16((u16 )(p + (mem & 0xffff)));
	262	} else {
	263	#ifdef PSXMEM_LOG
	264	PSXMEM_LOG("err lh %8.8lx\n", mem);
	265	#endif
943a507a	266	return 0xFFFF;
ef79bbde P	267	}
	268	}
	269	}
	270
	271	u32 psxMemRead32(u32 mem) {
	272	char *p;
	273	u32 t;
	274
	275	t = mem >> 16;
9dd7d179	276	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	277	if ((mem & 0xffff) < 0x400)
ef79bbde P	278	return psxHu32(mem);
	279	else
	280	return psxHwRead32(mem);
	281	} else {
	282	p = (char *)(psxMemRLUT[t]);
	283	if (p != NULL) {
	284	if (Config.Debug)
	285	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R4);
	286	return SWAPu32((u32 )(p + (mem & 0xffff)));
	287	} else {
	288	#ifdef PSXMEM_LOG
	289	if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
	290	#endif
943a507a	291	return 0xFFFFFFFF;
ef79bbde P	292	}
	293	}
	294	}
	295
	296	void psxMemWrite8(u32 mem, u8 value) {
	297	char *p;
	298	u32 t;
	299
	300	t = mem >> 16;
9dd7d179	301	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	302	if ((mem & 0xffff) < 0x400)
ef79bbde P	303	psxHu8(mem) = value;
	304	else
	305	psxHwWrite8(mem, value);
	306	} else {
	307	p = (char *)(psxMemWLUT[t]);
	308	if (p != NULL) {
	309	if (Config.Debug)
	310	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W1);
	311	(u8 )(p + (mem & 0xffff)) = value;
41e82ad4	312	#ifndef DRC_DISABLE
ef79bbde P	313	psxCpu->Clear((mem & (~3)), 1);
	314	#endif
	315	} else {
	316	#ifdef PSXMEM_LOG
	317	PSXMEM_LOG("err sb %8.8lx\n", mem);
	318	#endif
	319	}
	320	}
	321	}
	322
	323	void psxMemWrite16(u32 mem, u16 value) {
	324	char *p;
	325	u32 t;
	326
	327	t = mem >> 16;
9dd7d179	328	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	329	if ((mem & 0xffff) < 0x400)
ef79bbde P	330	psxHu16ref(mem) = SWAPu16(value);
	331	else
	332	psxHwWrite16(mem, value);
	333	} else {
	334	p = (char *)(psxMemWLUT[t]);
	335	if (p != NULL) {
	336	if (Config.Debug)
	337	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W2);
	338	(u16 )(p + (mem & 0xffff)) = SWAPu16(value);
41e82ad4	339	#ifndef DRC_DISABLE
3e31e934	340	psxCpu->Clear((mem & (~3)), 1);
ef79bbde P	341	#endif
	342	} else {
	343	#ifdef PSXMEM_LOG
	344	PSXMEM_LOG("err sh %8.8lx\n", mem);
	345	#endif
	346	}
	347	}
	348	}
	349
	350	void psxMemWrite32(u32 mem, u32 value) {
	351	char *p;
	352	u32 t;
	353
	354	// if ((mem&0x1fffff) == 0x71E18 \|\| value == 0x48088800) SysPrintf("t2fix!!\n");
	355	t = mem >> 16;
9dd7d179	356	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	357	if ((mem & 0xffff) < 0x400)
ef79bbde P	358	psxHu32ref(mem) = SWAPu32(value);
	359	else
	360	psxHwWrite32(mem, value);
	361	} else {
	362	p = (char *)(psxMemWLUT[t]);
	363	if (p != NULL) {
	364	if (Config.Debug)
	365	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W4);
	366	(u32 )(p + (mem & 0xffff)) = SWAPu32(value);
41e82ad4	367	#ifndef DRC_DISABLE
ef79bbde P	368	psxCpu->Clear(mem, 1);
	369	#endif
	370	} else {
	371	if (mem != 0xfffe0130) {
41e82ad4	372	#ifndef DRC_DISABLE
ef79bbde P	373	if (!writeok)
	374	psxCpu->Clear(mem, 1);
	375	#endif
	376
	377	#ifdef PSXMEM_LOG
	378	if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); }
	379	#endif
	380	} else {
	381	int i;
	382
	383	switch (value) {
	384	case 0x800: case 0x804:
	385	if (writeok == 0) break;
	386	writeok = 0;
	387	memset(psxMemWLUT + 0x0000, 0, 0x80 * sizeof(void *));
	388	memset(psxMemWLUT + 0x8000, 0, 0x80 * sizeof(void *));
	389	memset(psxMemWLUT + 0xa000, 0, 0x80 * sizeof(void *));
7bbabe80	390	/* Required for icache interpreter otherwise Armored Core won't boot on icache interpreter */
7bbabe80	391	psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_ISOLATED, NULL);
ef79bbde P	392	break;
	393	case 0x00: case 0x1e988:
	394	if (writeok == 1) break;
	395	writeok = 1;
	396	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
	397	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	398	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
7bbabe80	399	/* Dynarecs might take this opportunity to flush their code cache */
7bbabe80	400	psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
ef79bbde P	401	break;
	402	default:
	403	#ifdef PSXMEM_LOG
	404	PSXMEM_LOG("unk %8.8lx = %x\n", mem, value);
	405	#endif
	406	break;
	407	}
	408	}
	409	}
	410	}
	411	}
	412
	413	void *psxMemPointer(u32 mem) {
	414	char *p;
	415	u32 t;
	416
	417	t = mem >> 16;
9dd7d179	418	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	419	if ((mem & 0xffff) < 0x400)
ef79bbde P	420	return (void *)&psxH[mem];
	421	else
	422	return NULL;
	423	} else {
	424	p = (char *)(psxMemWLUT[t]);
	425	if (p != NULL) {
	426	return (void *)(p + (mem & 0xffff));
	427	}
	428	return NULL;
	429	}
	430	}