+/*
+ * Copyright © 2016 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <ao.h>
+#include <ao_scheme.h>
+#include <ao_flash.h>
+
+extern uint8_t __flash__[];
+
+/* saved variables to rebuild the heap
+
+ ao_scheme_atoms
+ ao_scheme_frame_global
+ */
+
+int
+ao_scheme_os_save(void)
+{
+ int i;
+
+ for (i = 0; i < AO_SCHEME_POOL_TOTAL; i += 256) {
+ uint32_t *dst = (uint32_t *) (void *) &__flash__[i];
+ uint32_t *src = (uint32_t *) (void *) &ao_scheme_pool[i];
+
+ ao_flash_page(dst, src);
+ }
+ return 1;
+}
+
+int
+ao_scheme_os_restore_save(struct ao_scheme_os_save *save, int offset)
+{
+ memcpy(save, &__flash__[offset], sizeof (struct ao_scheme_os_save));
+ return 1;
+}
+
+int
+ao_scheme_os_restore(void)
+{
+ memcpy(ao_scheme_pool, __flash__, AO_SCHEME_POOL_TOTAL);
+ return 1;
+}