#include "psxmem_map.h"
#include "r3000a.h"
#include "psxhw.h"
-#include "debug.h"
-#include <sys/mman.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
enum psxMapTag tag)
{
int flags = MAP_PRIVATE | MAP_ANONYMOUS;
+ int try_ = 0;
+ unsigned long mask;
void *req, *ret;
- if (psxMapHook != NULL)
- return psxMapHook(addr, size, is_fixed, tag);
+retry:
+ if (psxMapHook != NULL) {
+ ret = psxMapHook(addr, size, 0, tag);
+ if (ret == NULL)
+ return MAP_FAILED;
+ }
+ else {
+ /* avoid MAP_FIXED, it overrides existing mappings.. */
+ /* if (is_fixed)
+ flags |= MAP_FIXED; */
+
+ req = (void *)(uintptr_t)addr;
+ ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0);
+ if (ret == MAP_FAILED)
+ return ret;
+ }
- if (is_fixed)
- flags |= MAP_FIXED;
+ if (addr != 0 && ret != (void *)(uintptr_t)addr) {
+ SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
+ addr, ret);
- req = (void *)addr;
- ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0);
- if (ret == MAP_FAILED)
- return NULL;
+ if (is_fixed) {
+ psxUnmap(ret, size, tag);
+ return MAP_FAILED;
+ }
- if (ret != req)
- SysMessage("psxMap: warning: wanted to map @%p, got %p\n",
- req, ret);
+ if (((addr ^ (unsigned long)(uintptr_t)ret) & ~0xff000000l) && try_ < 2)
+ {
+ psxUnmap(ret, size, tag);
+
+ // try to use similarly aligned memory instead
+ // (recompiler needs this)
+ mask = try_ ? 0xffff : 0xffffff;
+ addr = ((uintptr_t)ret + mask) & ~mask;
+ try_++;
+ goto retry;
+ }
+ }
return ret;
}
return;
}
- munmap(ptr, size);
+ if (ptr)
+ munmap(ptr, size);
}
s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
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 *));
-
+static int psxMemInitMap(void)
+{
psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
-#ifndef RAM_FIXED
- if (psxM == NULL)
- psxM = psxMap(0x70000000, 0x00210000, 0, MAP_TAG_RAM);
-#endif
- if (psxM == NULL) {
+ 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, 1, MAP_TAG_OTHER);
+
+ psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
+ if (psxH == MAP_FAILED) {
+ SysMessage(_("Error allocating memory!"));
+ psxMemShutdown();
+ return -1;
+ }
+
psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
+ if (psxR == MAP_FAILED) {
+ SysMessage(_("Error allocating memory!"));
+ psxMemShutdown();
+ 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) {
+ SysMessage(_("Error allocating memory!"));
+ psxMemShutdown();
+ return -1;
+ }
+
+ psxMemRLUT = (u8 **)malloc(0x10000 * sizeof(void *));
+ psxMemWLUT = (u8 **)malloc(0x10000 * sizeof(void *));
- if (psxMemRLUT == NULL || psxMemWLUT == NULL ||
- psxR == NULL || psxP == NULL || psxH != (void *)0x1f800000) {
+ if (psxMemRLUT == NULL || psxMemWLUT == NULL) {
SysMessage(_("Error allocating memory!"));
+ psxMemShutdown();
return -1;
}
+ memset(psxMemRLUT, (uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
+ memset(psxMemWLUT, (uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
+
// MemR
for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
- psxMemWLUT[0x1f00] = (u8 *)psxP;
+ // 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;
char bios[1024];
memset(psxM, 0, 0x00200000);
- memset(psxP, 0, 0x00010000);
+ memset(psxP, 0xff, 0x00010000);
+
+ Config.HLE = TRUE;
if (strcmp(Config.Bios, "HLE") != 0) {
sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
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);
+ 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);
- Config.HLE = FALSE;
}
- } else Config.HLE = TRUE;
+ }
}
void psxMemShutdown() {
- psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
- psxUnmap(psxH, 0x1f800000, MAP_TAG_OTHER);
- psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
+ if (LIGHTREC_CUSTOM_MAP)
+ lightrec_free_mmap();
+ else
+ psxMemFreeMap();
- free(psxMemRLUT);
- free(psxMemWLUT);
+ free(psxMemRLUT); psxMemRLUT = NULL;
+ free(psxMemWLUT); psxMemWLUT = NULL;
}
static int writeok = 1;
u32 t;
t = mem >> 16;
- if (t == 0x1f80) {
- if (mem < 0x1f801000)
+ 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 (p != INVALID_PTR) {
if (Config.Debug)
DebugCheckBP((mem & 0xffffff) | 0x80000000, R1);
return *(u8 *)(p + (mem & 0xffff));
#ifdef PSXMEM_LOG
PSXMEM_LOG("err lb %8.8lx\n", mem);
#endif
- return 0;
+ return 0xFF;
}
}
}
u32 t;
t = mem >> 16;
- if (t == 0x1f80) {
- if (mem < 0x1f801000)
+ 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 (p != INVALID_PTR) {
if (Config.Debug)
DebugCheckBP((mem & 0xffffff) | 0x80000000, R2);
return SWAPu16(*(u16 *)(p + (mem & 0xffff)));
#ifdef PSXMEM_LOG
PSXMEM_LOG("err lh %8.8lx\n", mem);
#endif
- return 0;
+ return 0xFFFF;
}
}
}
u32 t;
t = mem >> 16;
- if (t == 0x1f80) {
- if (mem < 0x1f801000)
+ 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 (p != INVALID_PTR) {
if (Config.Debug)
DebugCheckBP((mem & 0xffffff) | 0x80000000, R4);
return SWAPu32(*(u32 *)(p + (mem & 0xffff)));
#ifdef PSXMEM_LOG
if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
#endif
- return 0;
+ return 0xFFFFFFFF;
}
}
}
u32 t;
t = mem >> 16;
- if (t == 0x1f80) {
- if (mem < 0x1f801000)
+ 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 (p != INVALID_PTR) {
if (Config.Debug)
DebugCheckBP((mem & 0xffffff) | 0x80000000, W1);
*(u8 *)(p + (mem & 0xffff)) = value;
-#ifdef PSXREC
+#ifndef DRC_DISABLE
psxCpu->Clear((mem & (~3)), 1);
#endif
} else {
u32 t;
t = mem >> 16;
- if (t == 0x1f80) {
- if (mem < 0x1f801000)
+ 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 (p != INVALID_PTR) {
if (Config.Debug)
DebugCheckBP((mem & 0xffffff) | 0x80000000, W2);
*(u16 *)(p + (mem & 0xffff)) = SWAPu16(value);
-#ifdef PSXREC
+#ifndef DRC_DISABLE
psxCpu->Clear((mem & (~3)), 1);
#endif
} else {
// if ((mem&0x1fffff) == 0x71E18 || value == 0x48088800) SysPrintf("t2fix!!\n");
t = mem >> 16;
- if (t == 0x1f80) {
- if (mem < 0x1f801000)
+ 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 (p != INVALID_PTR) {
if (Config.Debug)
DebugCheckBP((mem & 0xffffff) | 0x80000000, W4);
*(u32 *)(p + (mem & 0xffff)) = SWAPu32(value);
-#ifdef PSXREC
+#ifndef DRC_DISABLE
psxCpu->Clear(mem, 1);
#endif
} else {
if (mem != 0xfffe0130) {
-#ifdef PSXREC
+#ifndef DRC_DISABLE
if (!writeok)
psxCpu->Clear(mem, 1);
#endif
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 *));
+ memset(psxMemWLUT + 0x0000, (uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
+ memset(psxMemWLUT + 0x8000, (uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
+ memset(psxMemWLUT + 0xa000, (uintptr_t)INVALID_PTR, 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;
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
u32 t;
t = mem >> 16;
- if (t == 0x1f80) {
- if (mem < 0x1f801000)
+ 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) {
+ if (p != INVALID_PTR) {
return (void *)(p + (mem & 0xffff));
}
return NULL;
notaz.gp2x.de / pcsx_rearmed.git / blobdiff