Move solution and projects to src

src/ARMeilleure/CodeGen/X86/CodeGenCommon.cs

@@ -0,0 +1,19 @@
+using ARMeilleure.IntermediateRepresentation;
+
+namespace ARMeilleure.CodeGen.X86
+{
+    static class CodeGenCommon
+    {
+        public static bool IsLongConst(Operand op)
+        {
+            long value = op.Type == OperandType.I32 ? op.AsInt32() : op.AsInt64();
+
+            return !ConstFitsOnS32(value);
+        }
+
+        private static bool ConstFitsOnS32(long value)
+        {
+            return value == (int)value;
+        }
+    }
+}