JIT: Allow more blocks to be stored in the cache. Also, add margin to the IsFull check.

Common/Net/Resolve.cpp

@@ -71,6 +71,7 @@ void Shutdown()
 #endif
 }
 
+// NOTE: Due to the nature of getaddrinfo, this can block indefinitely. Not good.
 bool DNSResolve(const std::string &host, const std::string &service, addrinfo **res, std::string &error, DNSType type) {
 #if PPSSPP_PLATFORM(SWITCH)
 	// Force IPv4 lookups.

Core/MIPS/JitCommon/JitBlockCache.cpp

@@ -91,8 +91,8 @@ bool JitBlock::ContainsAddress(u32 em_address) const {
 }
 
 bool JitBlockCache::IsFull() const {
-	// -10 to safely leave space for some proxy blocks, which we don't check before we allocate (not ideal, but should work).
-	return num_blocks_ >= MAX_NUM_BLOCKS - 10;
+	// Subtract some amount to safely leave space for some proxy blocks, which we don't check before we allocate (not ideal, but should be enough).
+	return num_blocks_ >= MAX_NUM_BLOCKS - 512;
 }
 
 void JitBlockCache::Init() {
@@ -218,7 +218,6 @@ void JitBlockCache::ProxyBlock(u32 rootAddress, u32 startAddress, u32 size, cons
 void JitBlockCache::AddBlockMap(int block_num) {
 	const JitBlock &b = blocks_[block_num];
 	// Convert the logical address to a physical address for the block map
-	// Yeah, this'll work fine for PSP too I think.
 	u32 pAddr = b.originalAddress & 0x1FFFFFFF;
 	block_map_[std::make_pair(pAddr + 4 * b.originalSize, pAddr)] = block_num;
 }

Core/MIPS/JitCommon/JitBlockCache.h

@@ -227,7 +227,8 @@ private:
 	std::pair<u32, u32> blockMemRanges_[3];
 
 	enum {
-		MAX_NUM_BLOCKS = 65536*2
+		// Where does this number come from?
+		MAX_NUM_BLOCKS = 65536 * 4
 	};
 };