Write an MC68000 assembly language program that computes the average of fifteen

Question

Write an MC68000 assembly language program that computes the average of fifteen data bytes in memory (use EASY68k software)

The program should expect to find the data bytes stored at memory locations $600 thru $60E.

All values are positive and their sum may require more than 8 bits

The program should store the result as follows:

Integer part of average at Byte $760

Fractional part (the remainder after division) at Byte $761

Use ORG directives to set the location counter to the proper place,

Use DS.B directives to define names for the data bytes, and Specify the data address by name in the instructions.

Example:

ORG $600

DATA1 DS.B 1

DATA2 DS.B 1

ORG $800

MOVE.B DATA1, D0

Explanation / Answer

ANSWER::

DATA SEGMENT
NUM1 DB 5
NUM2 DB 9
NUM3 DB 7
AVG DB ?
ENDS
CODE SEGMENT
ASSUME DS:DATA CS:CODE
START:
MOV AX,DATA
MOV DS,AX

MOV AL,NUM1
ADD AL,NUM2  
ADD AL,NUM3

MOV AH,0

MOV DL,3
DIV DL

MOV AVG,AL

MOV AH,4CH
INT 21H
ENDS
END START

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