программа на прерывание как доделать???=(((

[Николай////////]

org 9000h
mov a, #88h
mov dptr, #8003h
movx @dptr, a
m100:
mov dptr, #8002h
movx a, @dptr
swap a
ANL a, #01h
JZ m11

mov dptr, #8001h
movx a, @dptr
ANL a, #01h
JZ m210
DEC a
movx @dptr, a
LJMP m27
m210:
INC a
movx @dptr,a

m27:
mov R1, #01h
mov R2, #01h
mov R3, #01h

m22:
mov A, R1
JZ m21
m24:
mov A, R2
JZ m23
m26:
mov A, R3
JZ m25
DEC R3
LJMP m26
m25:
DEC R2
mov R3, #01h
LJMP m24
m23:
DEC R1
mov R2, #01h
LJMP m22
m21:
LJMP m100

m11:
mov dptr, #8001h
movx a, @dptr
ANL a, #01h
JZ m10
DEC a
movx @dptr, a
LJMP m7
m10:
INC a
movx @dptr,a

m7:
mov R1, #01h
mov R2, #01h
mov R3, #01h

m2:
mov A, R1
JZ m1

m4:
mov A, R2
JZ m3

m6:
mov A, R3
JZ m5
DEC R3
LJMP m6

m5:
DEC R2
mov R3, #01h
LJMP m4

m3:
DEC R1
mov R2, #01h
LJMP m2

m1:
LJMP m100

END




как сдесь сделать прерывание???(((