CODE SEGMENT
ASSUME CS:CODE,DS:CODE

ORG 1000H
MAIN:
    MOV AX,CS
    MOV DS,AX

    XOR SI,SI
    MOV CX,4
AVG:
    XOR AX,AX
    XOR BX,BX
ADDED:
    ADD AX,S[BX][SI]
    CMP BX,32
    JE STORE
    ADD BX,8
    JMP ADDED

STORE:
    MOV BX,5
    DIV BX
    MOV AV[SI],AX
    ADD SI,2

    LOOP AVG

    MOV AH,04CH
    INT 21H

ORG 1500H
S DW 67,45,98,33
    DW 70,56,87,44
    DW 82,72,89,40
    DW 80,67,95,50
    DW 78,76,92,60
ORG 1600H
AV DW 4 DUP(?)

CODE ENDS
END MAIN