Add custom new to GBA build

src/nostalgia/core/gba/mem.cpp

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2016-2017 gtalent2@gmail.com
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "addresses.hpp"
+
+namespace nostalgia {
+namespace core {
+
+static uint8_t *_heapPtr = MEM_WRAM_END;
+
+void clearHeap() {
+	_heapPtr = MEM_WRAM_END;
+}
+
+}
+}
+
+using namespace nostalgia::core;
+
+void *operator new(size_t sz) {
+	return _heapPtr -= sz;
+}
+
+void operator delete(void *ptr) {
+}
+