Fix address_range start_length() constructor

Fixes an underflow when constructing start_length(0, 0).

Utilities/address_range.h

@@ -60,21 +60,26 @@ namespace utils
 			return (start1 >= start2 && end1 <= end2);
 		}
 
-		address_range(u32 _start, u32 _end) : start(_start), end(_end) {}
+		constexpr address_range(u32 _start, u32 _end) : start(_start), end(_end) {}
 
 	public:
 		// Constructors
-		address_range() = default;
+		constexpr address_range() = default;
-		address_range(const address_range &other) : start(other.start), end(other.end) {}
+		constexpr address_range(const address_range &other) : start(other.start), end(other.end) {}
 
-		static inline address_range start_length(u32 _start, u32 _length)
+		static constexpr address_range start_length(u32 _start, u32 _length)
 		{
-			return address_range(_start, _start + (_length - 1));
+			if (!_length)
+			{
+				return {};
+			}
+
+			return {_start, _start + (_length - 1)};
 		}
 
-		static inline address_range start_end(u32 _start, u32 _end)
+		static constexpr address_range start_end(u32 _start, u32 _end)
 		{
-			return address_range(_start, _end);
+			return {_start, _end};
 		}
 
 		// Length