.MODEL SMALL
.STACK 100H
.DATA

    SUM DW 0
    TEMP DB 0
    INPUT DW ?
    OUTPUT DW ?
    COUNT DB 0
    YEAR DW ?
    MONTH DB ?
    DAY DB ?
    FNAME  DB 'C:\read_start.txt',0
    FNAME1 DB 'C:\read_end.txt',0
    FNAME2 DB 'C:\date.txt',0
    FNAME3 DB 'C:\time_spent.txt',0
    HANDLE DW ?
    MSG1 DB 'DAFFODIL INTERNATIONAL UNIVERSITY.'
    MSG2 DB 10,13,'Enter Starting Time: $'
    MSG3 DB 10,13,'ENter Ending Time: $'
    MSG4 DB 10,13,'The Starting Time: $'
    MSG5 DB 10,13,'The Ending Time: $'
    TEXT_SIZE = $ - OFFSET MSG
    BUFFER DB TEXT_SIZE DUP('$')
    ;COUNT DB TEXT_SIZE

.CODE
MAIN PROC
    MOV AX,@DATA
    MOV DS,AX


    ;create file
    MOV AH,3CH
    MOV DX,OFFSET(FNAME)
    INT 21H

    MOV AH,3CH
    MOV DX,OFFSET(FNAME1)
    INT 21H

    MOV AH,3CH
    MOV DX,OFFSET(FNAME2)
    INT 21H

    MOV AH,3CH
    MOV DX,OFFSET(FNAME3)
    INT 21H


    ;input data
    ;open file
    MOV AH,3DH
    MOV DX,OFFSET(FNAME)
    MOV AL,1
    INT 21H
    MOV HANDLE,AX


    ;insert file
    ;MOV AH,40H
    ;MOV BX,HANDLE
    ;MOV CX,TEXT_SIZE
    ;INT 21H



    ;close file
    ;MOV AH,3EH
    ;MOV DX,HANDLE
    ;INT 21H


    ;show
    ;open file

    ;MOV AH,3DH
    ;MOV DX,OFFSET(FNAME)
    ;MOV AL,0
    ;INT 21H
    ;MOV HANDLE,AX

     ;read file
    MOV AH,3FH
    MOV BX,HANDLE
    MOV DX,OFFSET(BUFFER)
    MOV CX,TEXT_SIZE
    INT 21H

    MOV DX,OFFSET MSG1
    MOV AH,09h
    INT 21H

    MOV DX,OFFSET MSG2
    MOV AH,09h
    INT 21H


    MOV AH,1H
    INT 21H


    MOV BL,AL
    INT 21H

    MOV BH,AL
    INT 21H

    MOV CL,AL
    INT 21H

    MOV CH,AL


    MOV DX,OFFSET MSG4
    MOV AH,09h
    INT 21H
    MOV AH,2


    MOV DL,BL
    INT 21H

    MOV DL,BH
    INT 21H

    MOV DL,CL
    INT 21H

    MOV DL,CH
    INT 21H

    MOV DX,OFFSET MSG3
    MOV AH,09h
    INT 21H


    MOV AH,1H
    INT 21H


    MOV BL,AL
    INT 21H

    MOV BH,AL
    INT 21H

    MOV CL,AL
    INT 21H

    MOV CH,AL


    MOV DX,OFFSET MSG5
    MOV AH,09h
    INT 21H
    MOV AH,2


    MOV DL,BL
    INT 21H

    MOV DL,BH
    INT 21H

    MOV DL,CL
    INT 21H

    MOV DL,CH
    INT 21H


    MOV AH,4CH
    INT 21H

    ;display

   ; MOV SI,OFFSET(BUFFER)
   ; L1:
   ; MOV AH,2
   ; MOV DL,[SI]
   ; INT 21H
   ; INC SI
   ; DEC COUNT
   ; JNZ L1


    ;close file
    ;MOV AH,3EH
    ;MOV DX,HANDLE
    ;INT 21H


    ;MOV AH,4CH
    ;INT 21H
    MAIN ENDP
END MAIN