[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);
#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];
	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 *));
#ifdef ICACHE_EMULATION
						/* Required for icache interpreter otherwise Armored Core won't boot on icache interpreter */
						psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_ISOLATED, NULL);
#endif
						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 *));
#ifdef ICACHE_EMULATION
						/* Dynarecs might take this opportunity to flush their code cache */
						psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
#endif
						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);
a327ad27	139	#ifndef RAM_FIXED
a4874585	140	if (psxM == NULL)
f23d3386	141	psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
a327ad27	142	#endif
87e5b45f	143	if (psxM == NULL) {
a327ad27	144	SysMessage(_("mapping main RAM failed"));
	145	return -1;
	146	}
ef79bbde P	147
ef79bbde P	148	psxP = &psxM[0x200000];
6d760c92	149	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
87e5b45f	150	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
ef79bbde P	151
ef79bbde P	152	if (psxMemRLUT == NULL \|\| psxMemWLUT == NULL \|\|
6d760c92	153	psxR == NULL \|\| psxP == NULL \|\| psxH == NULL) {
ef79bbde	154	SysMessage(_("Error allocating memory!"));
88901dd2	155	psxMemShutdown();
ef79bbde P	156	return -1;
	157	}
	158
	159	// MemR
	160	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	161
	162	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	163	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));
	164
	165	psxMemRLUT[0x1f00] = (u8 *)psxP;
	166	psxMemRLUT[0x1f80] = (u8 *)psxH;
	167
	168	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];
	169
	170	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	171	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	172
	173	// MemW
	174	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	175
	176	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	177	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	178
fa18abb2	179	// Don't allow writes to PIO Expansion region (psxP) to take effect.
	180	// NOTE: Not sure if this is needed to fix any games but seems wise,
	181	// seeing as some games do read from PIO as part of copy-protection
	182	// check. (See fix in psxMemReset() regarding psxP region reads).
	183	psxMemWLUT[0x1f00] = NULL;
ef79bbde P	184	psxMemWLUT[0x1f80] = (u8 *)psxH;
	185
	186	return 0;
	187	}
	188
	189	void psxMemReset() {
	190	FILE *f = NULL;
	191	char bios[1024];
	192
	193	memset(psxM, 0, 0x00200000);
23643ee7	194	memset(psxP, 0xff, 0x00010000);
ef79bbde P	195
	196	if (strcmp(Config.Bios, "HLE") != 0) {
	197	sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
	198	f = fopen(bios, "rb");
	199
	200	if (f == NULL) {
	201	SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
	202	memset(psxR, 0, 0x80000);
	203	Config.HLE = TRUE;
	204	} else {
	205	fread(psxR, 1, 0x80000, f);
	206	fclose(f);
	207	Config.HLE = FALSE;
	208	}
	209	} else Config.HLE = TRUE;
	210	}
	211
	212	void psxMemShutdown() {
88901dd2	213	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM); psxM = NULL;
	214	psxUnmap(psxH, 0x10000, MAP_TAG_OTHER); psxH = NULL;
	215	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER); psxR = NULL;
ef79bbde	216
88901dd2	217	free(psxMemRLUT); psxMemRLUT = NULL;
88901dd2	218	free(psxMemWLUT); psxMemWLUT = NULL;
ef79bbde P	219	}
	220
	221	static int writeok = 1;
	222
	223	u8 psxMemRead8(u32 mem) {
	224	char *p;
	225	u32 t;
	226
	227	t = mem >> 16;
9dd7d179	228	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	229	if ((mem & 0xffff) < 0x400)
ef79bbde P	230	return psxHu8(mem);
	231	else
	232	return psxHwRead8(mem);
	233	} else {
	234	p = (char *)(psxMemRLUT[t]);
	235	if (p != NULL) {
	236	if (Config.Debug)
	237	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R1);
	238	return (u8 )(p + (mem & 0xffff));
	239	} else {
	240	#ifdef PSXMEM_LOG
	241	PSXMEM_LOG("err lb %8.8lx\n", mem);
	242	#endif
943a507a	243	return 0xFF;
ef79bbde P	244	}
	245	}
	246	}
	247
	248	u16 psxMemRead16(u32 mem) {
	249	char *p;
	250	u32 t;
	251
	252	t = mem >> 16;
9dd7d179	253	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	254	if ((mem & 0xffff) < 0x400)
ef79bbde P	255	return psxHu16(mem);
	256	else
	257	return psxHwRead16(mem);
	258	} else {
	259	p = (char *)(psxMemRLUT[t]);
	260	if (p != NULL) {
	261	if (Config.Debug)
	262	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R2);
	263	return SWAPu16((u16 )(p + (mem & 0xffff)));
	264	} else {
	265	#ifdef PSXMEM_LOG
	266	PSXMEM_LOG("err lh %8.8lx\n", mem);
	267	#endif
943a507a	268	return 0xFFFF;
ef79bbde P	269	}
	270	}
	271	}
	272
	273	u32 psxMemRead32(u32 mem) {
	274	char *p;
	275	u32 t;
	276
	277	t = mem >> 16;
9dd7d179	278	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	279	if ((mem & 0xffff) < 0x400)
ef79bbde P	280	return psxHu32(mem);
	281	else
	282	return psxHwRead32(mem);
	283	} else {
	284	p = (char *)(psxMemRLUT[t]);
	285	if (p != NULL) {
	286	if (Config.Debug)
	287	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R4);
	288	return SWAPu32((u32 )(p + (mem & 0xffff)));
	289	} else {
	290	#ifdef PSXMEM_LOG
	291	if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
	292	#endif
943a507a	293	return 0xFFFFFFFF;
ef79bbde P	294	}
	295	}
	296	}
	297
	298	void psxMemWrite8(u32 mem, u8 value) {
	299	char *p;
	300	u32 t;
	301
	302	t = mem >> 16;
9dd7d179	303	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	304	if ((mem & 0xffff) < 0x400)
ef79bbde P	305	psxHu8(mem) = value;
	306	else
	307	psxHwWrite8(mem, value);
	308	} else {
	309	p = (char *)(psxMemWLUT[t]);
	310	if (p != NULL) {
	311	if (Config.Debug)
	312	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W1);
	313	(u8 )(p + (mem & 0xffff)) = value;
41e82ad4	314	#ifndef DRC_DISABLE
ef79bbde P	315	psxCpu->Clear((mem & (~3)), 1);
	316	#endif
	317	} else {
	318	#ifdef PSXMEM_LOG
	319	PSXMEM_LOG("err sb %8.8lx\n", mem);
	320	#endif
	321	}
	322	}
	323	}
	324
	325	void psxMemWrite16(u32 mem, u16 value) {
	326	char *p;
	327	u32 t;
	328
	329	t = mem >> 16;
9dd7d179	330	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	331	if ((mem & 0xffff) < 0x400)
ef79bbde P	332	psxHu16ref(mem) = SWAPu16(value);
	333	else
	334	psxHwWrite16(mem, value);
	335	} else {
	336	p = (char *)(psxMemWLUT[t]);
	337	if (p != NULL) {
	338	if (Config.Debug)
	339	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W2);
	340	(u16 )(p + (mem & 0xffff)) = SWAPu16(value);
41e82ad4	341	#ifndef DRC_DISABLE
3e31e934	342	psxCpu->Clear((mem & (~3)), 1);
ef79bbde P	343	#endif
	344	} else {
	345	#ifdef PSXMEM_LOG
	346	PSXMEM_LOG("err sh %8.8lx\n", mem);
	347	#endif
	348	}
	349	}
	350	}
	351
	352	void psxMemWrite32(u32 mem, u32 value) {
	353	char *p;
	354	u32 t;
	355
	356	// if ((mem&0x1fffff) == 0x71E18 \|\| value == 0x48088800) SysPrintf("t2fix!!\n");
	357	t = mem >> 16;
9dd7d179	358	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	359	if ((mem & 0xffff) < 0x400)
ef79bbde P	360	psxHu32ref(mem) = SWAPu32(value);
	361	else
	362	psxHwWrite32(mem, value);
	363	} else {
	364	p = (char *)(psxMemWLUT[t]);
	365	if (p != NULL) {
	366	if (Config.Debug)
	367	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W4);
	368	(u32 )(p + (mem & 0xffff)) = SWAPu32(value);
41e82ad4	369	#ifndef DRC_DISABLE
ef79bbde P	370	psxCpu->Clear(mem, 1);
	371	#endif
	372	} else {
	373	if (mem != 0xfffe0130) {
41e82ad4	374	#ifndef DRC_DISABLE
ef79bbde P	375	if (!writeok)
	376	psxCpu->Clear(mem, 1);
	377	#endif
	378
	379	#ifdef PSXMEM_LOG
	380	if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); }
	381	#endif
	382	} else {
	383	int i;
	384
	385	switch (value) {
	386	case 0x800: case 0x804:
	387	if (writeok == 0) break;
	388	writeok = 0;
	389	memset(psxMemWLUT + 0x0000, 0, 0x80 * sizeof(void *));
	390	memset(psxMemWLUT + 0x8000, 0, 0x80 * sizeof(void *));
	391	memset(psxMemWLUT + 0xa000, 0, 0x80 * sizeof(void *));
7bbabe80	392	#ifdef ICACHE_EMULATION
	393	/* Required for icache interpreter otherwise Armored Core won't boot on icache interpreter */
	394	psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_ISOLATED, NULL);
	395	#endif
ef79bbde P	396	break;
	397	case 0x00: case 0x1e988:
	398	if (writeok == 1) break;
	399	writeok = 1;
	400	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
	401	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	402	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
7bbabe80	403	#ifdef ICACHE_EMULATION
	404	/* Dynarecs might take this opportunity to flush their code cache */
	405	psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
	406	#endif
ef79bbde P	407	break;
	408	default:
	409	#ifdef PSXMEM_LOG
	410	PSXMEM_LOG("unk %8.8lx = %x\n", mem, value);
	411	#endif
	412	break;
	413	}
	414	}
	415	}
	416	}
	417	}
	418
	419	void *psxMemPointer(u32 mem) {
	420	char *p;
	421	u32 t;
	422
	423	t = mem >> 16;
9dd7d179	424	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	425	if ((mem & 0xffff) < 0x400)
ef79bbde P	426	return (void *)&psxH[mem];
	427	else
	428	return NULL;
	429	} else {
	430	p = (char *)(psxMemWLUT[t]);
	431	if (p != NULL) {
	432	return (void *)(p + (mem & 0xffff));
	433	}
	434	return NULL;
	435	}
	436	}