add128.asm

8086 program clock,counter,20 bit adder

 org 100h
ARRAY SEGMENT
    ARRAY_1 DB 02h,04h,05h,06h,09h,0AAh,06h,09h,06h,01h,07h,08h,08h,02h,05h,92h
    ARRAY_2 DB 09h,0Ah,05h,0Bh,05h,04h,06h,04h,05h,03h,05h,00h,07h,08h,0Ch,0CBh
    ARRAY_3 DB 16 DUP(00H)                     
ARRAY ENDS

CODE SEGMENT
    ASSUME CS:CODE,DS:ARRAY
    MOV AX,ARRAY
    MOV DS,AX 
    mov DI,15
    MOV BX,15
    MOV SI,15
    ;lEA DI,ARRAY_1 
    ;ADD DI,000Fh
    ;LEA BX,ARRAY_2
    ;ADD BX,000Fh
    ;LEA SI,ARRAY_3
    ;ADD SI,000Fh
    MOV AH,00H
    RECACULATE: 
             
             MOV AL,ARRAY_1[DI]
             MOV DL,ARRAY_2[BX]
             ADD AL,AH   
             ADD AL,DL
             ADC AH,00h
             MOV ARRAY_3[SI],AL
             ;MOV AH,00H
             DEC BX
             DEC SI
             DEC DI
             CMP DI,0
             JA RECACULATE         
             
CODE ENDS
END