// TODO: Implement caches & cycle penalty.
#include "psxmem.h"
+#include "psxmem_map.h"
#include "r3000a.h"
#include "psxhw.h"
-#include <sys/mman.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)
memset(psxMemRLUT, 0, 0x10000 * sizeof(void *));
memset(psxMemWLUT, 0, 0x10000 * sizeof(void *));
- psxM = mmap(0, 0x00220000,
- PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ 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 = &psxM[0x210000];
-
- psxR = (s8 *)malloc(0x00080000);
+ psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
+ psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
if (psxMemRLUT == NULL || psxMemWLUT == NULL ||
- psxM == NULL || psxP == NULL || psxH == NULL) {
+ psxR == NULL || psxP == NULL || psxH == NULL) {
SysMessage(_("Error allocating memory!"));
+ psxMemShutdown();
return -1;
}
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] = NULL;
psxMemWLUT[0x1f80] = (u8 *)psxH;
return 0;
char bios[1024];
memset(psxM, 0, 0x00200000);
- memset(psxP, 0, 0x00010000);
+ memset(psxP, 0xff, 0x00010000);
if (strcmp(Config.Bios, "HLE") != 0) {
sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
}
void psxMemShutdown() {
- munmap(psxM, 0x00220000);
+ 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(psxR);
- 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);
#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);
#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);
#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);
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);
if (Config.Debug)
DebugCheckBP((mem & 0xffffff) | 0x80000000, W2);
*(u16 *)(p + (mem & 0xffff)) = SWAPu16(value);
-#ifdef PSXREC
- psxCpu->Clear((mem & (~1)), 1);
+#ifndef DRC_DISABLE
+ psxCpu->Clear((mem & (~3)), 1);
#endif
} else {
#ifdef PSXMEM_LOG
// 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);
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
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;
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
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;
notaz.gp2x.de / pcsx_rearmed.git / blobdiff