first part:
LOAD_PAGE:
          MOV FMDAT,@R0 ;write data to
          INC R0 ;point to next
          DJNZ R3,LOAD_PAGE ;do until count
          MOV FMCON,#EP ;else erase &


second_part:
LOAD_PAGE1:
          MOV FMDAT,#32H ;write data to FMDATA
          DJNZ R3,LOAD_PAGE ;do until count
          RET ;and return