added origin program

kernel/memory/mm.h

@@ -3,16 +3,23 @@
 
 #include <stdint.h>
 
+#define PAGE_PRESENT  0x1
+#define PAGE_WRITABLE 0x2
+#define PAGE_USER     0x4
+
 typedef struct __attribute__((packed)) {
     uint32_t addr;
 } mem_page_t;
 
 void init_pmm(void* mmap_base, uint32_t mmap_limit);
 void init_page_tables();
-void* init_kheap();
+
+void* p_alloc_frame();
 
 uint32_t total_free_memory();
 
 void* create_user_pd();
 
+void map_page(uint32_t vaddr, uint32_t paddr, uint32_t flags);
+
 #endif