malloc

#include "../orix/src/include/orix.h"
#include "../orix/src/include/macro.h"
; set the header
 
MALLOC(200) ; Call malloc macro, 
; at this step it returns  
; oom NULL in AY 
; the adress of the free memory AY
 

free

#include "../orix/src/include/orix.h"
#include "../orix/src/include/macro.h"
; set the header
 
lda #<address_low
ldy #>address_low
FREE()