X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fpsxmem.c;h=7001744b54d9069eef194207f923d9ce7df0a3bc;hp=27663f1fd685bc4fbea50bc24756ad5d9bc19685;hb=650adfd2da779ba8855623362c2900583e22931e;hpb=8ad120c9c4dca424feac32098cb4af6a2c8f641f

diff --git a/libpcsxcore/psxmem.c b/libpcsxcore/psxmem.c
index 27663f1f..7001744b 100644
--- a/libpcsxcore/psxmem.c
+++ b/libpcsxcore/psxmem.c
@@ -42,22 +42,48 @@ 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;
+	unsigned long mask;
 	void *req, *ret;
 
-	if (psxMapHook != NULL)
-		return psxMapHook(addr, size, is_fixed, tag);
+retry:
+	if (psxMapHook != NULL) {
+		ret = psxMapHook(addr, size, is_fixed, tag);
+		goto out;
+	}
 
-	if (is_fixed)
-		flags |= MAP_FIXED;
+	/* 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 (req != NULL && ret != req)
-		SysMessage("psxMap: warning: wanted to map @%p, got %p\n",
-			req, ret);
+out:
+	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 (ret != NULL && ((addr ^ (long)ret) & 0x00ffffff)
+		    && !tried_to_align)
+		{
+			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;
+			goto retry;
+		}
+	}
 
 	return ret;
 }
@@ -69,7 +95,8 @@ void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
 		return;
 	}
 
-	munmap(ptr, size);
+	if (ptr)
+		munmap(ptr, size);
 }
 
 s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
@@ -109,8 +136,13 @@ int psxMemInit() {
 
 	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
 #ifndef RAM_FIXED
+#ifdef __BLACKBERRY_QNX__
 	if (psxM == NULL)
-		psxM = psxMap(0x70000000, 0x00210000, 0, MAP_TAG_RAM);
+		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"));
@@ -118,12 +150,13 @@ int psxMemInit() {
 	}
 
 	psxP = &psxM[0x200000];
-	psxH = psxMap(0x1f800000, 0x10000, 1, MAP_TAG_OTHER);
+	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 != (void *)0x1f800000) {
+	    psxR == NULL || psxP == NULL || psxH == NULL) {
 		SysMessage(_("Error allocating memory!"));
+		psxMemShutdown();
 		return -1;
 	}
 
@@ -177,12 +210,12 @@ void psxMemReset() {
 }
 
 void psxMemShutdown() {
-	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
-	psxUnmap(psxH, 0x1f800000, MAP_TAG_OTHER);
-	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
+	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);
-	free(psxMemWLUT);
+	free(psxMemRLUT); psxMemRLUT = NULL;
+	free(psxMemWLUT); psxMemWLUT = NULL;
 }
 
 static int writeok = 1;
@@ -192,8 +225,8 @@ u8 psxMemRead8(u32 mem) {
 	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);
@@ -217,8 +250,8 @@ u16 psxMemRead16(u32 mem) {
 	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);
@@ -242,8 +275,8 @@ u32 psxMemRead32(u32 mem) {
 	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);
@@ -267,8 +300,8 @@ void psxMemWrite8(u32 mem, u8 value) {
 	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);
@@ -294,8 +327,8 @@ void psxMemWrite16(u32 mem, u16 value) {
 	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);
@@ -322,8 +355,8 @@ void psxMemWrite32(u32 mem, u32 value) {
 
 //	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);
@@ -380,8 +413,8 @@ void *psxMemPointer(u32 mem) {
 	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;