//The struct
typedef struct mem_block{
    mblock_t *prev;
    boolean used;
    size_t size;
    mblock_t *next;
} mblock_t;

//The file-local pointer(before its init)
mblock_t *eheap=NULL;


//Function that assigns the values
mblock_t *init_early_heap(address_t start, size_t size){
    if(eheap==NULL){
        if(size < sizeof(mblock_t)){
            PANIC("Available memory below EHEAP requirement");
        }
        eheap = (mblock_t*)HEAP_START_ADDRESS;
        eheap->prev = NULL;
        eheap->next = NULL;
        eheap->size = (size_t)(size - sizeof(mblock_t));
        eheap->used = false;
        print("\nCreated Early Heap at ");
        print_hex_long(eheap);
        print("\nSize in bytes: ");
        print(itos(eheap->size));NL;
    }
    return eheap;
}