Start adding memory stuff

include/helpers.hpp

@@ -17,8 +17,7 @@ using s16 = std::int16_t;
 using s32 = std::int32_t;
 using s64 = std::int64_t;
 
-class Helpers {
-public:
+namespace Helpers {
     [[noreturn]] static void panic(const char* fmt, ...) {
         std::va_list args;
         va_start(args, fmt);
@@ -133,6 +132,19 @@ public:
     }
 };
 
+// UDLs for memory size values
+constexpr size_t operator""_KB(unsigned long long int x) {
+    return 1024ULL * x;
+}
+
+constexpr size_t operator""_MB(unsigned long long int x) {
+    return 1024_KB * x;
+}
+
+constexpr size_t operator""_GB(unsigned long long int x) {
+    return 1024_MB * x;
+}
+
 // useful macros
 // likely/unlikely
 #ifdef __GNUC__