#include <stdlib.h>
+#include <stdint.h>
-struct task *task_head = NULL;
+#include "interface.h"
+#include "mem.h"
+
+uint8_t mem[MEMSIZE] = {0};
+
+uint8_t *mem_top = &mem[MEMSIZE-1];
+uint8_t *mem_bottom = &mem[0];
+uint8_t *mem_task = &mem[0];
+uint8_t *mem_sds = &mem[MEMSIZE-1];
+
+uint16_t mem_free(void)
+{
+ return mem_sds-mem_task;
+}
+
+void mem_reset(void)
+{
+ mem_top = &mem[MEMSIZE-1];
+ mem_bottom = &mem[0];
+ mem_task = &mem[0];
+ mem_sds = &mem[MEMSIZE-1];
+}