[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 "lightrec/mem.h"
#include "memmap.h"

#ifdef USE_LIBRETRO_VFS
#include <streams/file_stream_transforms.h>
#endif

#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif

static void * psxMapDefault(unsigned long addr, size_t size,
			    enum psxMapTag tag, int *can_retry_addr)
{
	void *ptr;
#if !P_HAVE_MMAP
	*can_retry_addr = 0;
	ptr = calloc(1, size);
	return ptr ? ptr : MAP_FAILED;
#else
	int flags = MAP_PRIVATE | MAP_ANONYMOUS;

	*can_retry_addr = 1;
	ptr = mmap((void *)(uintptr_t)addr, size,
		    PROT_READ | PROT_WRITE, flags, -1, 0);
#ifdef MADV_HUGEPAGE
	if (size >= 2*1024*1024) {
		if (ptr != MAP_FAILED && ((uintptr_t)ptr & (2*1024*1024 - 1))) {
			// try to manually realign assuming decreasing addr alloc
			munmap(ptr, size);
			addr = (uintptr_t)ptr & ~(2*1024*1024 - 1);
			ptr = mmap((void *)(uintptr_t)addr, size,
				PROT_READ | PROT_WRITE, flags, -1, 0);
		}
		if (ptr != MAP_FAILED)
			madvise(ptr, size, MADV_HUGEPAGE);
	}
#endif
	return ptr;
#endif
}

static void psxUnmapDefault(void *ptr, size_t size, enum psxMapTag tag)
{
#if !P_HAVE_MMAP
	free(ptr);
#else
	munmap(ptr, size);
#endif
}

void *(*psxMapHook)(unsigned long addr, size_t size,
		enum psxMapTag tag, int *can_retry_addr) = psxMapDefault;
void (*psxUnmapHook)(void *ptr, size_t size,
		     enum psxMapTag tag) = psxUnmapDefault;

void *psxMap(unsigned long addr, size_t size, int is_fixed,
		enum psxMapTag tag)
{
	int try_, can_retry_addr = 0;
	void *ret = MAP_FAILED;

	for (try_ = 0; try_ < 3; try_++)
	{
		if (ret != MAP_FAILED)
			psxUnmap(ret, size, tag);
		ret = psxMapHook(addr, size, tag, &can_retry_addr);
		if (ret == MAP_FAILED)
			return MAP_FAILED;

		if (addr != 0 && ret != (void *)(uintptr_t)addr) {
			SysMessage("psxMap: tried to map @%08lx, got %p\n",
				addr, ret);
			if (is_fixed) {
				psxUnmap(ret, size, tag);
				return MAP_FAILED;
			}

			if (can_retry_addr && ((addr ^ (uintptr_t)ret) & ~0xff000000l)) {
				unsigned long mask;

				// try to use similarly aligned memory instead
				// (recompiler prefers this)
				mask = try_ ? 0xffff : 0xffffff;
				addr = ((uintptr_t)ret + mask) & ~mask;
				continue;
			}
		}
		break;
	}

	return ret;
}

void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
{
	psxUnmapHook(ptr, size, tag);
}

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
*/

static int psxMemInitMap(void)
{
	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
	if (psxM == MAP_FAILED)
		psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
	if (psxM == MAP_FAILED) {
		SysMessage("mapping main RAM failed");
		psxM = NULL;
		return -1;
	}
	psxP = &psxM[0x200000];

	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
	if (psxH == MAP_FAILED) {
		SysMessage("Error allocating psxH");
		psxH = NULL;
		return -1;
	}

	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
	if (psxR == MAP_FAILED) {
		SysMessage("Error allocating psxR");
		psxR = NULL;
		return -1;
	}

	return 0;
}

static void psxMemFreeMap(void)
{
	if (psxM) psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
	if (psxH) psxUnmap(psxH, 0x10000, MAP_TAG_OTHER);
	if (psxR) psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
	psxM = psxH = psxR = NULL;
	psxP = NULL;
}

int psxMemInit(void)
{
	unsigned int i;
	int ret;

	if (LIGHTREC_CUSTOM_MAP)
		ret = lightrec_init_mmap();
	else
		ret = psxMemInitMap();
	if (ret) {
		if (LIGHTREC_CUSTOM_MAP)
			SysMessage("lightrec_init_mmap failed");
		psxMemShutdown();
		return -1;
	}

	if (DISABLE_MEM_LUTS)
		return 0;

	psxMemRLUT = (u8 **)malloc(0x10000 * sizeof(void *));
	psxMemWLUT = (u8 **)malloc(0x10000 * sizeof(void *));

	if (psxMemRLUT == NULL || psxMemWLUT == NULL) {
		SysMessage("Error allocating psxMem LUTs");
		psxMemShutdown();
		return -1;
	}

	memset(psxMemRLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
	memset(psxMemWLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));

// 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] = INVALID_PTR;
	psxMemWLUT[0x1f80] = (u8 *)psxH;

	return 0;
}

void psxMemReset() {
	FILE *f = NULL;
	char bios[1024];

	memset(psxM, 0, 0x00200000);
	memset(psxP, 0xff, 0x00010000);

	Config.HLE = TRUE;

	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);
		} else {
			if (fread(psxR, 1, 0x80000, f) == 0x80000) {
				Config.HLE = FALSE;
			} else {
				SysMessage(_("The selected BIOS:\"%s\" is of wrong size. Enabling HLE Bios!\n"), bios);
			}
			fclose(f);
		}
	}
	if (Config.HLE)
		memset(psxR, 0, 0x80000);
}

void psxMemShutdown() {
	if (LIGHTREC_CUSTOM_MAP)
		lightrec_free_mmap();
	else
		psxMemFreeMap();

	free(psxMemRLUT); psxMemRLUT = NULL;
	free(psxMemWLUT); psxMemWLUT = NULL;
}

int cache_isolated;

void psxMemOnIsolate(int enable)
{
	if (!DISABLE_MEM_LUTS) {
		if (enable) {
			memset(psxMemWLUT + 0x0000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
			memset(psxMemWLUT + 0x8000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
			//memset(psxMemWLUT + 0xa000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
		} else {
			int i;
			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 *));
		}
	}

	cache_isolated = enable;
	psxCpu->Notify(enable ? R3000ACPU_NOTIFY_CACHE_ISOLATED
			: R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
}

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 = psxm(mem, 0);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, R1);
			return *(u8 *)p;
		} 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 = psxm(mem, 0);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, R2);
			return SWAPu16(*(u16 *)p);
		} 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 = psxm(mem, 0);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, R4);
			return SWAPu32(*(u32 *)p);
		} else {
			if (mem == 0xfffe0130)
				return psxRegs.biuReg;
#ifdef PSXMEM_LOG
			PSXMEM_LOG("err lw %8.8lx\n", mem);
#endif
			return 0xFFFFFFFF;
		}
	}
}

void psxMemWrite8(u32 mem, u32 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 = psxm(mem, 1);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, W1);
			*(u8 *)p = 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, u32 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 = psxm(mem, 1);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, W2);
			*(u16 *)p = 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 = psxm(mem, 1);
		if (p != INVALID_PTR) {
			if (Config.Debug)
				DebugCheckBP((mem & 0xffffff) | 0x80000000, W4);
			*(u32 *)p = SWAPu32(value);
#ifndef DRC_DISABLE
			psxCpu->Clear(mem, 1);
#endif
		} else {
			if (mem == 0xfffe0130) {
				psxRegs.biuReg = value;
				return;
			}
#ifdef PSXMEM_LOG
			PSXMEM_LOG("err sw %8.8lx\n", mem);
#endif
		}
	}
}

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 = psxm(mem, 1);
		if (p != INVALID_PTR) {
			return (void *)p;
		}
		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
7a8d521f	33	#include "lightrec/mem.h"
ce0e7ac9	34	#include "memmap.h"
ef79bbde	35
7a8d521f	36	#ifdef USE_LIBRETRO_VFS
	37	#include <streams/file_stream_transforms.h>
	38	#endif
	39
ef79bbde P	40	#ifndef MAP_ANONYMOUS
	41	#define MAP_ANONYMOUS MAP_ANON
	42	#endif
	43
826ba56b	44	static void * psxMapDefault(unsigned long addr, size_t size,
4284a818	45	enum psxMapTag tag, int *can_retry_addr)
826ba56b	46	{
5e282df8	47	void *ptr;
d3f0cb2b	48	#if !P_HAVE_MMAP
4284a818	49	*can_retry_addr = 0;
d3f0cb2b	50	ptr = calloc(1, size);
5e282df8 PC	51	return ptr ? ptr : MAP_FAILED;
5e282df8 PC	52	#else
826ba56b PC	53	int flags = MAP_PRIVATE \| MAP_ANONYMOUS;
826ba56b PC	54
4284a818	55	*can_retry_addr = 1;
d3f0cb2b	56	ptr = mmap((void *)(uintptr_t)addr, size,
826ba56b	57	PROT_READ \| PROT_WRITE, flags, -1, 0);
d3f0cb2b	58	#ifdef MADV_HUGEPAGE
	59	if (size >= 210241024) {
	60	if (ptr != MAP_FAILED && ((uintptr_t)ptr & (210241024 - 1))) {
4284a818	61	// try to manually realign assuming decreasing addr alloc
d3f0cb2b	62	munmap(ptr, size);
	63	addr = (uintptr_t)ptr & ~(210241024 - 1);
	64	ptr = mmap((void *)(uintptr_t)addr, size,
	65	PROT_READ \| PROT_WRITE, flags, -1, 0);
	66	}
	67	if (ptr != MAP_FAILED)
	68	madvise(ptr, size, MADV_HUGEPAGE);
	69	}
	70	#endif
	71	return ptr;
5e282df8	72	#endif
826ba56b PC	73	}
	74
	75	static void psxUnmapDefault(void *ptr, size_t size, enum psxMapTag tag)
	76	{
9165d434	77	#if !P_HAVE_MMAP
5e282df8 PC	78	free(ptr);
5e282df8 PC	79	#else
826ba56b	80	munmap(ptr, size);
5e282df8	81	#endif
826ba56b PC	82	}
826ba56b PC	83
4284a818	84	void (psxMapHook)(unsigned long addr, size_t size,
4284a818	85	enum psxMapTag tag, int *can_retry_addr) = psxMapDefault;
826ba56b PC	86	void (psxUnmapHook)(void ptr, size_t size,
826ba56b PC	87	enum psxMapTag tag) = psxUnmapDefault;
87e5b45f	88
	89	void *psxMap(unsigned long addr, size_t size, int is_fixed,
	90	enum psxMapTag tag)
	91	{
4284a818	92	int try_, can_retry_addr = 0;
0b2c3926	93	void *ret = MAP_FAILED;
87e5b45f	94
4284a818	95	for (try_ = 0; try_ < 3; try_++)
4284a818	96	{
0b2c3926	97	if (ret != MAP_FAILED)
0b2c3926	98	psxUnmap(ret, size, tag);
4284a818	99	ret = psxMapHook(addr, size, tag, &can_retry_addr);
7e9c3060	100	if (ret == MAP_FAILED)
7a8d521f	101	return MAP_FAILED;
b0dd9956	102
4284a818	103	if (addr != 0 && ret != (void *)(uintptr_t)addr) {
5612f82e	104	SysMessage("psxMap: tried to map @%08lx, got %p\n",
4284a818	105	addr, ret);
	106	if (is_fixed) {
	107	psxUnmap(ret, size, tag);
	108	return MAP_FAILED;
	109	}
	110
	111	if (can_retry_addr && ((addr ^ (uintptr_t)ret) & ~0xff000000l)) {
	112	unsigned long mask;
	113
4284a818	114	// try to use similarly aligned memory instead
	115	// (recompiler prefers this)
	116	mask = try_ ? 0xffff : 0xffffff;
	117	addr = ((uintptr_t)ret + mask) & ~mask;
	118	continue;
	119	}
b0dd9956	120	}
4284a818	121	break;
b0dd9956	122	}
87e5b45f	123
	124	return ret;
	125	}
	126
	127	void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
	128	{
826ba56b	129	psxUnmapHook(ptr, size, tag);
87e5b45f	130	}
87e5b45f	131
ef79bbde P	132	s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
	133	s8 *psxP = NULL; // Parallel Port (64K)
	134	s8 *psxR = NULL; // BIOS ROM (512K)
	135	s8 *psxH = NULL; // Scratch Pad (1K) & Hardware Registers (8K)
	136
	137	u8 **psxMemWLUT = NULL;
	138	u8 **psxMemRLUT = NULL;
	139
	140	/* Playstation Memory Map (from Playstation doc by Joshua Walker)
	141	0x0000_0000-0x0000_ffff Kernel (64K)
	142	0x0001_0000-0x001f_ffff User Memory (1.9 Meg)
	143
	144	0x1f00_0000-0x1f00_ffff Parallel Port (64K)
	145
	146	0x1f80_0000-0x1f80_03ff Scratch Pad (1024 bytes)
	147
	148	0x1f80_1000-0x1f80_2fff Hardware Registers (8K)
	149
	150	0x1fc0_0000-0x1fc7_ffff BIOS (512K)
	151
	152	0x8000_0000-0x801f_ffff Kernel and User Memory Mirror (2 Meg) Cached
	153	0x9fc0_0000-0x9fc7_ffff BIOS Mirror (512K) Cached
	154
	155	0xa000_0000-0xa01f_ffff Kernel and User Memory Mirror (2 Meg) Uncached
	156	0xbfc0_0000-0xbfc7_ffff BIOS Mirror (512K) Uncached
	157	*/
	158
7a8d521f	159	static int psxMemInitMap(void)
7a8d521f	160	{
87e5b45f	161	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
7a8d521f	162	if (psxM == MAP_FAILED)
f23d3386	163	psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
7a8d521f	164	if (psxM == MAP_FAILED) {
5dd884df	165	SysMessage("mapping main RAM failed");
7a8d521f	166	psxM = NULL;
a327ad27	167	return -1;
a327ad27	168	}
ef79bbde	169	psxP = &psxM[0x200000];
7a8d521f	170
6d760c92	171	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
7a8d521f	172	if (psxH == MAP_FAILED) {
5dd884df	173	SysMessage("Error allocating psxH");
5dd884df	174	psxH = NULL;
7a8d521f	175	return -1;
	176	}
	177
87e5b45f	178	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
7a8d521f	179	if (psxR == MAP_FAILED) {
5dd884df	180	SysMessage("Error allocating psxR");
5dd884df	181	psxR = NULL;
7a8d521f	182	return -1;
7a8d521f	183	}
ef79bbde	184
7a8d521f	185	return 0;
	186	}
	187
	188	static void psxMemFreeMap(void)
	189	{
	190	if (psxM) psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
	191	if (psxH) psxUnmap(psxH, 0x10000, MAP_TAG_OTHER);
	192	if (psxR) psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
	193	psxM = psxH = psxR = NULL;
	194	psxP = NULL;
	195	}
	196
	197	int psxMemInit(void)
	198	{
	199	unsigned int i;
	200	int ret;
	201
	202	if (LIGHTREC_CUSTOM_MAP)
	203	ret = lightrec_init_mmap();
	204	else
	205	ret = psxMemInitMap();
	206	if (ret) {
5dd884df	207	if (LIGHTREC_CUSTOM_MAP)
5dd884df	208	SysMessage("lightrec_init_mmap failed");
7a8d521f	209	psxMemShutdown();
	210	return -1;
	211	}
	212
4bb8d7e1 PC	213	if (DISABLE_MEM_LUTS)
	214	return 0;
	215
7a8d521f	216	psxMemRLUT = (u8 *)malloc(0x10000 sizeof(void *));
	217	psxMemWLUT = (u8 *)malloc(0x10000 sizeof(void *));
	218
	219	if (psxMemRLUT == NULL \|\| psxMemWLUT == NULL) {
5dd884df	220	SysMessage("Error allocating psxMem LUTs");
88901dd2	221	psxMemShutdown();
ef79bbde P	222	return -1;
	223	}
	224
679d5ee3	225	memset(psxMemRLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
679d5ee3	226	memset(psxMemWLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
7a8d521f	227
ef79bbde P	228	// MemR
	229	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	230
	231	memcpy(psxMemRLUT + 0x8000, psxMemRLUT, 0x80 * sizeof(void *));
	232	memcpy(psxMemRLUT + 0xa000, psxMemRLUT, 0x80 * sizeof(void *));
	233
	234	psxMemRLUT[0x1f00] = (u8 *)psxP;
	235	psxMemRLUT[0x1f80] = (u8 *)psxH;
	236
	237	for (i = 0; i < 0x08; i++) psxMemRLUT[i + 0x1fc0] = (u8 *)&psxR[i << 16];
	238
	239	memcpy(psxMemRLUT + 0x9fc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	240	memcpy(psxMemRLUT + 0xbfc0, psxMemRLUT + 0x1fc0, 0x08 * sizeof(void *));
	241
	242	// MemW
	243	for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
	244
	245	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	246	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	247
fa18abb2	248	// Don't allow writes to PIO Expansion region (psxP) to take effect.
	249	// NOTE: Not sure if this is needed to fix any games but seems wise,
	250	// seeing as some games do read from PIO as part of copy-protection
	251	// check. (See fix in psxMemReset() regarding psxP region reads).
7a8d521f	252	psxMemWLUT[0x1f00] = INVALID_PTR;
ef79bbde P	253	psxMemWLUT[0x1f80] = (u8 *)psxH;
	254
	255	return 0;
	256	}
	257
	258	void psxMemReset() {
	259	FILE *f = NULL;
	260	char bios[1024];
	261
	262	memset(psxM, 0, 0x00200000);
23643ee7	263	memset(psxP, 0xff, 0x00010000);
ef79bbde	264
7a8d521f	265	Config.HLE = TRUE;
7a8d521f	266
ef79bbde P	267	if (strcmp(Config.Bios, "HLE") != 0) {
	268	sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
	269	f = fopen(bios, "rb");
	270
	271	if (f == NULL) {
	272	SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
ef79bbde	273	} else {
7a8d521f	274	if (fread(psxR, 1, 0x80000, f) == 0x80000) {
	275	Config.HLE = FALSE;
	276	} else {
	277	SysMessage(_("The selected BIOS:\"%s\" is of wrong size. Enabling HLE Bios!\n"), bios);
	278	}
ef79bbde	279	fclose(f);
ef79bbde	280	}
7a8d521f	281	}
60afad47	282	if (Config.HLE)
60afad47	283	memset(psxR, 0, 0x80000);
ef79bbde P	284	}
	285
	286	void psxMemShutdown() {
7a8d521f	287	if (LIGHTREC_CUSTOM_MAP)
	288	lightrec_free_mmap();
	289	else
	290	psxMemFreeMap();
ef79bbde	291
88901dd2	292	free(psxMemRLUT); psxMemRLUT = NULL;
88901dd2	293	free(psxMemWLUT); psxMemWLUT = NULL;
ef79bbde P	294	}
ef79bbde P	295
4bb8d7e1 PC	296	int cache_isolated;
4bb8d7e1 PC	297
679d5ee3	298	void psxMemOnIsolate(int enable)
679d5ee3	299	{
4bb8d7e1 PC	300	if (!DISABLE_MEM_LUTS) {
	301	if (enable) {
	302	memset(psxMemWLUT + 0x0000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
	303	memset(psxMemWLUT + 0x8000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
	304	//memset(psxMemWLUT + 0xa000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
	305	} else {
	306	int i;
	307	for (i = 0; i < 0x80; i++)
	308	psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
	309	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
	310	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
	311	}
679d5ee3	312	}
4bb8d7e1 PC	313
4bb8d7e1 PC	314	cache_isolated = enable;
679d5ee3	315	psxCpu->Notify(enable ? R3000ACPU_NOTIFY_CACHE_ISOLATED
	316	: R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
	317	}
ef79bbde P	318
	319	u8 psxMemRead8(u32 mem) {
	320	char *p;
	321	u32 t;
	322
	323	t = mem >> 16;
9dd7d179	324	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	325	if ((mem & 0xffff) < 0x400)
ef79bbde P	326	return psxHu8(mem);
	327	else
	328	return psxHwRead8(mem);
	329	} else {
4bb8d7e1	330	p = psxm(mem, 0);
7a8d521f	331	if (p != INVALID_PTR) {
ef79bbde P	332	if (Config.Debug)
ef79bbde P	333	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R1);
4bb8d7e1	334	return (u8 )p;
ef79bbde P	335	} else {
	336	#ifdef PSXMEM_LOG
	337	PSXMEM_LOG("err lb %8.8lx\n", mem);
	338	#endif
943a507a	339	return 0xFF;
ef79bbde P	340	}
	341	}
	342	}
	343
	344	u16 psxMemRead16(u32 mem) {
	345	char *p;
	346	u32 t;
	347
	348	t = mem >> 16;
9dd7d179	349	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	350	if ((mem & 0xffff) < 0x400)
ef79bbde P	351	return psxHu16(mem);
	352	else
	353	return psxHwRead16(mem);
	354	} else {
4bb8d7e1	355	p = psxm(mem, 0);
7a8d521f	356	if (p != INVALID_PTR) {
ef79bbde P	357	if (Config.Debug)
ef79bbde P	358	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R2);
4bb8d7e1	359	return SWAPu16((u16 )p);
ef79bbde P	360	} else {
	361	#ifdef PSXMEM_LOG
	362	PSXMEM_LOG("err lh %8.8lx\n", mem);
	363	#endif
943a507a	364	return 0xFFFF;
ef79bbde P	365	}
	366	}
	367	}
	368
	369	u32 psxMemRead32(u32 mem) {
	370	char *p;
	371	u32 t;
	372
	373	t = mem >> 16;
9dd7d179	374	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	375	if ((mem & 0xffff) < 0x400)
ef79bbde P	376	return psxHu32(mem);
	377	else
	378	return psxHwRead32(mem);
	379	} else {
4bb8d7e1	380	p = psxm(mem, 0);
7a8d521f	381	if (p != INVALID_PTR) {
ef79bbde P	382	if (Config.Debug)
ef79bbde P	383	DebugCheckBP((mem & 0xffffff) \| 0x80000000, R4);
4bb8d7e1	384	return SWAPu32((u32 )p);
ef79bbde	385	} else {
679d5ee3	386	if (mem == 0xfffe0130)
679d5ee3	387	return psxRegs.biuReg;
ef79bbde	388	#ifdef PSXMEM_LOG
679d5ee3	389	PSXMEM_LOG("err lw %8.8lx\n", mem);
ef79bbde	390	#endif
943a507a	391	return 0xFFFFFFFF;
ef79bbde P	392	}
	393	}
	394	}
	395
20bfbac0	396	void psxMemWrite8(u32 mem, u32 value) {
ef79bbde P	397	char *p;
	398	u32 t;
	399
	400	t = mem >> 16;
9dd7d179	401	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	402	if ((mem & 0xffff) < 0x400)
ef79bbde P	403	psxHu8(mem) = value;
	404	else
	405	psxHwWrite8(mem, value);
	406	} else {
4bb8d7e1	407	p = psxm(mem, 1);
7a8d521f	408	if (p != INVALID_PTR) {
ef79bbde P	409	if (Config.Debug)
ef79bbde P	410	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W1);
4bb8d7e1	411	(u8 )p = value;
41e82ad4	412	#ifndef DRC_DISABLE
ef79bbde P	413	psxCpu->Clear((mem & (~3)), 1);
	414	#endif
	415	} else {
	416	#ifdef PSXMEM_LOG
	417	PSXMEM_LOG("err sb %8.8lx\n", mem);
	418	#endif
	419	}
	420	}
	421	}
	422
20bfbac0	423	void psxMemWrite16(u32 mem, u32 value) {
ef79bbde P	424	char *p;
	425	u32 t;
	426
	427	t = mem >> 16;
9dd7d179	428	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	429	if ((mem & 0xffff) < 0x400)
ef79bbde P	430	psxHu16ref(mem) = SWAPu16(value);
	431	else
	432	psxHwWrite16(mem, value);
	433	} else {
4bb8d7e1	434	p = psxm(mem, 1);
7a8d521f	435	if (p != INVALID_PTR) {
ef79bbde P	436	if (Config.Debug)
ef79bbde P	437	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W2);
4bb8d7e1	438	(u16 )p = SWAPu16(value);
41e82ad4	439	#ifndef DRC_DISABLE
3e31e934	440	psxCpu->Clear((mem & (~3)), 1);
ef79bbde P	441	#endif
	442	} else {
	443	#ifdef PSXMEM_LOG
	444	PSXMEM_LOG("err sh %8.8lx\n", mem);
	445	#endif
	446	}
	447	}
	448	}
	449
	450	void psxMemWrite32(u32 mem, u32 value) {
	451	char *p;
	452	u32 t;
	453
	454	// if ((mem&0x1fffff) == 0x71E18 \|\| value == 0x48088800) SysPrintf("t2fix!!\n");
	455	t = mem >> 16;
9dd7d179	456	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	457	if ((mem & 0xffff) < 0x400)
ef79bbde P	458	psxHu32ref(mem) = SWAPu32(value);
	459	else
	460	psxHwWrite32(mem, value);
	461	} else {
4bb8d7e1	462	p = psxm(mem, 1);
7a8d521f	463	if (p != INVALID_PTR) {
ef79bbde P	464	if (Config.Debug)
ef79bbde P	465	DebugCheckBP((mem & 0xffffff) \| 0x80000000, W4);
4bb8d7e1	466	(u32 )p = SWAPu32(value);
41e82ad4	467	#ifndef DRC_DISABLE
ef79bbde P	468	psxCpu->Clear(mem, 1);
	469	#endif
	470	} else {
679d5ee3	471	if (mem == 0xfffe0130) {
	472	psxRegs.biuReg = value;
	473	return;
	474	}
ef79bbde	475	#ifdef PSXMEM_LOG
679d5ee3	476	PSXMEM_LOG("err sw %8.8lx\n", mem);
ef79bbde	477	#endif
ef79bbde P	478	}
	479	}
	480	}
	481
	482	void *psxMemPointer(u32 mem) {
	483	char *p;
	484	u32 t;
	485
	486	t = mem >> 16;
9dd7d179	487	if (t == 0x1f80 \|\| t == 0x9f80 \|\| t == 0xbf80) {
9dd7d179	488	if ((mem & 0xffff) < 0x400)
ef79bbde P	489	return (void *)&psxH[mem];
	490	else
	491	return NULL;
	492	} else {
4bb8d7e1	493	p = psxm(mem, 1);
7a8d521f	494	if (p != INVALID_PTR) {
4bb8d7e1	495	return (void *)p;
ef79bbde P	496	}
	497	return NULL;
	498	}
	499	}