faster conversion to little endian

i2pd

@@ -1 +1 @@
-Subproject commit 4448884a3ebf822ecca7b39f2fe9777a79ae1863
+Subproject commit abf0f5ac8780c9cb0088e4ccefcd0d0274e63965

src/hash.h

@@ -22,12 +22,12 @@ inline uint256 Hash(const T1 pbegin, const T1 pend)
     static unsigned char pblank[1];
     uint8_t hash1[64];
     i2p::crypto::GOSTR3411_2012_512 ((pbegin == pend ? pblank : (unsigned char*)&pbegin[0]), (pend - pbegin) * sizeof(pbegin[0]), hash1);	
-	uint8_t digest[32];
-    i2p::crypto::GOSTR3411_2012_256 (hash1, 64, digest);
+	uint32_t digest[8];
+    i2p::crypto::GOSTR3411_2012_256 (hash1, 64, (uint8_t *)digest);
 	// to little endian
 	uint256 hash2;	
-	for (int i = 0; i < 32; i++)
-		hash2.begin ()[i] = digest[31-i];		
+	for (int i = 0; i < 8; i++)
+		hash2.pn[i] = ByteReverse (digest[7-i]);
     return hash2;
 }
 

src/uint256.h

@@ -26,10 +26,9 @@ inline int Testuint256AdHoc(std::vector<std::string> vArg);
 template<unsigned int BITS>
 class base_uint
 {
-protected:
+public:
     enum { WIDTH=BITS/32 };
     uint32_t pn[WIDTH];
-public:
 
     bool operator!() const
     {

src/util.h

@@ -552,12 +552,13 @@ void RenameThread(const char* name);
 
 inline uint32_t ByteReverse(uint32_t value)
 {
-#if 0
-// #if defined(__x86_64__)
+#if defined(__x86_64__) || defined(__i386__)
 	__asm__
 	(
-		"bswap %%eax"
-		: "=a"(value) ::
+		"bswap %0"
+		: "=r"(value) 
+		: "0"(value)
+		:
 	);
 	return value;
 #else