typedef struct {
	qword	base;
	qword	limit;
	dword	attributes;
} __attribute__((packed)) memmap_entry;


typedef struct {
	dword	base;
	dword	length;		//in pages
	dword	flags;
	dword	link;
} __attribute__ ((packed)) pageblock;		//16 byte pageblock entry - 512 entries = 1 page


void	mm_init();
void	mm_init_pageblockpage(pageblock *pbp);
void   *mm_palloc(dword numpages);
int	mm_pfree(void *ptr);
dword	mm_freeentries();
pageblock *mm_new_pageblock_page();
pageblock *mm_lastpageblockentry();
pageblock *mm_nextpageblockentry();
dword mm_freemem();


#define MM_PB_FLAGMASK 0x03	//00000011
#define MM_PB_NP 0x00		//00000000
#define MM_PB_AVAIL 0x01	//00000001
#define MM_PB_USED 0x02		//00000010