remove some UB

- savestates used to read a four bytes from a single byte value
- a few unassigned variables
- some other things
- also make the ROR macro an inline function

src/Savestate.cpp

@@ -261,6 +261,22 @@ void Savestate::Var64(u64* var)
     }
 }
 
+void Savestate::Bool32(bool* var)
+{
+    // for compability
+    if (Saving)
+    {
+        u32 val = *var;
+        Var32(&val);
+    }
+    else
+    {
+        u32 val;
+        Var32(&val);
+        *var = val != 0;
+    }
+}
+
 void Savestate::VarArray(void* data, u32 len)
 {
     if (Error) return;
@@ -273,4 +289,4 @@ void Savestate::VarArray(void* data, u32 len)
     {
         fread(data, len, 1, file);
     }
-}
+}