diff --git a/Utilities/Log.cpp b/Utilities/Log.cpp
index a6b3319940..44ed7dedf7 100644
--- a/Utilities/Log.cpp
+++ b/Utilities/Log.cpp
@@ -237,16 +237,15 @@ LogChannel &LogManager::getChannel(LogType type)
 }
 
 void log_message(Log::LogType type, Log::LogSeverity sev, const char* text)
+{
+	log_message(type, sev, std::string(text));
+}
+
+void log_message(Log::LogType type, Log::LogSeverity sev, std::string text)
 {
 	//another msvc bug makes this not work, uncomment this and delete everything else in this function when it's fixed
 	//Log::LogManager::getInstance().log({logType, severity, text})
 
-	Log::LogMessage msg{ type, sev, text };
-	Log::LogManager::getInstance().log(msg);
-}
-
-void log_message(Log::LogType type, Log::LogSeverity sev, const std::string& text)
-{
-	Log::LogMessage msg{ type, sev, text };
+	Log::LogMessage msg{ type, sev, std::move(text) };
 	Log::LogManager::getInstance().log(msg);
 }
diff --git a/Utilities/Log.h b/Utilities/Log.h
index 2eaf876f27..d1710f05cf 100644
--- a/Utilities/Log.h
+++ b/Utilities/Log.h
@@ -127,7 +127,7 @@ static struct { inline operator Log::LogType() { return Log::LogType::ARMv7; } }
 static struct { inline operator Log::LogType() { return Log::LogType::TTY; } } TTY;
 
 void log_message(Log::LogType type, Log::LogSeverity sev, const char* text);
-void log_message(Log::LogType type, Log::LogSeverity sev, const std::string& text);
+void log_message(Log::LogType type, Log::LogSeverity sev, std::string text);
 
 template<typename... Targs> 
 __noinline void log_message(Log::LogType type, Log::LogSeverity sev, const char* fmt, Targs... args)
diff --git a/Utilities/StrFmt.cpp b/Utilities/StrFmt.cpp
index dcd7214430..4c8c43cdf2 100644
--- a/Utilities/StrFmt.cpp
+++ b/Utilities/StrFmt.cpp
@@ -11,7 +11,7 @@ std::string u128::to_xyzw() const
 	return fmt::Format("x: %g y: %g z: %g w: %g", _f[3], _f[2], _f[1], _f[0]);
 }
 
-std::string fmt::detail::to_hex(u64 value, size_t count)
+std::string fmt::to_hex(u64 value, size_t count)
 {
 	assert(count - 1 < 16);
 	count = std::max<u64>(count, 16 - cntlz64(value) / 4);
@@ -26,6 +26,50 @@ std::string fmt::detail::to_hex(u64 value, size_t count)
 	return std::string(res, count);
 }
 
+std::string fmt::to_udec(u64 value)
+{
+	char res[20] = {};
+	size_t first = sizeof(res);
+
+	if (!value)
+	{
+		res[--first] = '0';
+	}
+
+	for (; value; value /= 10)
+	{
+		res[--first] = '0' + (value % 10);
+	}
+
+	return std::string(&res[first], sizeof(res) - first);
+}
+
+std::string fmt::to_sdec(s64 svalue)
+{
+	const bool sign = svalue < 0;
+	u64 value = sign ? -svalue : svalue;
+
+	char res[20] = {};
+	size_t first = sizeof(res);
+
+	if (!value)
+	{
+		res[--first] = '0';
+	}
+
+	for (; value; value /= 10)
+	{
+		res[--first] = '0' + (value % 10);
+	}
+
+	if (sign)
+	{
+		res[--first] = '-';
+	}
+
+	return std::string(&res[first], sizeof(res) - first);
+}
+
 size_t fmt::detail::get_fmt_start(const char* fmt, size_t len)
 {
 	for (size_t i = 0; i < len; i++)
diff --git a/Utilities/StrFmt.h b/Utilities/StrFmt.h
index 8e19d8c5df..36a1ee4abb 100644
--- a/Utilities/StrFmt.h
+++ b/Utilities/StrFmt.h
@@ -173,10 +173,12 @@ namespace fmt
 		return src;
 	}
 
+	std::string to_hex(u64 value, size_t count = 1);
+	std::string to_udec(u64 value);
+	std::string to_sdec(s64 value);
+
 	namespace detail
 	{
-		std::string to_hex(u64 value, size_t count = 1);
-
 		size_t get_fmt_start(const char* fmt, size_t len);
 		size_t get_fmt_len(const char* fmt, size_t len);
 		size_t get_fmt_precision(const char* fmt, size_t len);
@@ -198,7 +200,7 @@ namespace fmt
 				}
 				else if (fmt[len - 1] == 'd')
 				{
-					return std::to_string((u32)arg);
+					return to_udec(arg);
 				}
 				else
 				{
@@ -220,7 +222,7 @@ namespace fmt
 				}
 				else if (fmt[len - 1] == 'd')
 				{
-					return std::to_string((u32)arg);
+					return to_udec(arg);
 				}
 				else
 				{
@@ -242,7 +244,7 @@ namespace fmt
 				}
 				else if (fmt[len - 1] == 'd')
 				{
-					return std::to_string(arg);
+					return to_udec(arg);
 				}
 				else
 				{
@@ -264,7 +266,7 @@ namespace fmt
 				}
 				else if (fmt[len - 1] == 'd')
 				{
-					return std::to_string(arg);
+					return to_udec(arg);
 				}
 				else
 				{
@@ -286,7 +288,7 @@ namespace fmt
 				}
 				else if (fmt[len - 1] == 'd')
 				{
-					return std::to_string((s32)arg);
+					return to_sdec(arg);
 				}
 				else
 				{
@@ -308,7 +310,7 @@ namespace fmt
 				}
 				else if (fmt[len - 1] == 'd')
 				{
-					return std::to_string((s32)arg);
+					return to_sdec(arg);
 				}
 				else
 				{
@@ -330,7 +332,7 @@ namespace fmt
 				}
 				else if (fmt[len - 1] == 'd')
 				{
-					return std::to_string(arg);
+					return to_sdec(arg);
 				}
 				else
 				{
@@ -352,7 +354,7 @@ namespace fmt
 				}
 				else if (fmt[len - 1] == 'd')
 				{
-					return std::to_string(arg);
+					return to_sdec(arg);
 				}
 				else
 				{
@@ -625,8 +627,8 @@ namespace fmt
 	vm::psv::ref (fmt::unveil) (vm_ref.h)
 	
 	Supported formatting:
-	%d - decimal; only basic std::to_string() functionality
-	%x - hexadecimal; %.8x - hexadecimal with the precision (from .2 to .16)
+	%d - decimal; to_sdec() and to_udec()
+	%x - hexadecimal; to_hex(), %08x - hexadecimal with minimal length (from 02 to 016)
 	%s - string; generates "true" or "false" for bool
 	%f - floating point; only basic std::to_string() functionality