X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fpsxmem.c;h=c09965dc15e50353d583e80e3ebbf3ae880d2bf8;hp=86da68ce693e86654ea425c86f2e5865e4efd703;hb=a3203cf4f2f21b0f2f74c5e494e3f5ba58225eae;hpb=ce0e7ac9c11993f9165615dec870c50e1c3b39bf

diff --git a/libpcsxcore/psxmem.c b/libpcsxcore/psxmem.c
index 86da68ce..c09965dc 100644
--- a/libpcsxcore/psxmem.c
+++ b/libpcsxcore/psxmem.c
@@ -43,26 +43,27 @@ void *psxMap(unsigned long addr, size_t size, int is_fixed,
 		enum psxMapTag tag)
 {
 	int flags = MAP_PRIVATE | MAP_ANONYMOUS;
-	int tried_to_align = 0;
+	int try_ = 0;
 	unsigned long mask;
 	void *req, *ret;
 
 retry:
 	if (psxMapHook != NULL) {
-		ret = psxMapHook(addr, size, is_fixed, tag);
-		goto out;
+		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;
 	}
 
-	/* 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;
-
-out:
 	if (addr != 0 && ret != (void *)addr) {
 		SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
 			addr, ret);
@@ -72,16 +73,15 @@ out:
 			return NULL;
 		}
 
-		if (ret != NULL && ((addr ^ (long)ret) & 0x00ffffff)
-		    && !tried_to_align)
+		if (((addr ^ (unsigned long)ret) & ~0xff000000l) && try_ < 2)
 		{
 			psxUnmap(ret, size, tag);
 
 			// try to use similarly aligned memory instead
 			// (recompiler needs this)
-			mask = (addr - 1) & ~addr & 0x07ffffff;
-			addr = (unsigned long)(ret + mask) & ~mask;
-			tried_to_align = 1;
+			mask = try_ ? 0xffff : 0xffffff;
+			addr = ((unsigned long)ret + mask) & ~mask;
+			try_++;
 			goto retry;
 		}
 	}
@@ -137,13 +137,8 @@ int psxMemInit() {
 
 	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
 #ifndef RAM_FIXED
-#ifdef __BLACKBERRY_QNX__
 	if (psxM == NULL)
 		psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
-#else
-	if (psxM == NULL)
-		psxM = psxMap(0x78000000, 0x00210000, 0, MAP_TAG_RAM);
-#endif
 #endif
 	if (psxM == NULL) {
 		SysMessage(_("mapping main RAM failed"));
@@ -181,7 +176,11 @@ int psxMemInit() {
 	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;
@@ -192,7 +191,7 @@ void psxMemReset() {
 	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);
@@ -241,7 +240,7 @@ u8 psxMemRead8(u32 mem) {
 #ifdef PSXMEM_LOG
 			PSXMEM_LOG("err lb %8.8lx\n", mem);
 #endif
-			return 0;
+			return 0xFF;
 		}
 	}
 }
@@ -266,7 +265,7 @@ u16 psxMemRead16(u32 mem) {
 #ifdef PSXMEM_LOG
 			PSXMEM_LOG("err lh %8.8lx\n", mem);
 #endif
-			return 0;
+			return 0xFFFF;
 		}
 	}
 }
@@ -291,7 +290,7 @@ u32 psxMemRead32(u32 mem) {
 #ifdef PSXMEM_LOG
 			if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
 #endif
-			return 0;
+			return 0xFFFFFFFF;
 		}
 	}
 }
@@ -312,7 +311,7 @@ void psxMemWrite8(u32 mem, u8 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 {
@@ -339,7 +338,7 @@ void psxMemWrite16(u32 mem, u16 value) {
 			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 {
@@ -367,12 +366,12 @@ void psxMemWrite32(u32 mem, u32 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
@@ -390,6 +389,10 @@ void psxMemWrite32(u32 mem, u32 value) {
 						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;
@@ -397,6 +400,10 @@ void psxMemWrite32(u32 mem, u32 value) {
 						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