BIOS /DOS CALL, KEYBOARD, CONTROL, DISPLAY FILE MANIPULATION USING 8086

BIOS/DOS CALLS – DISPLAY CONTROL

AIM:

      To display a message on the CRT screen of a microcomputer using DOS calls.

ALGORITHM:

1.      Initialize the data segment and the message to be displayed.

2.      Set function value for display.

3.      Point to the message and run the interrupt to display the message in the CRT.

PROGRAM:

ASSUME CS: CODE, DS: DATA

DATA SEGMENT

MSG DB 0DH, 0AH, “GOOD MORNING” , ODH, OAH, “$”

DATA ENDS

CODE SEGMENT

START:    MOV AX, DATA

                  MOV DS, AX

                  MOV AH, 09H

                  MOV DX, OFFSET MSG

                  INT 21H

                  MOV AH, 4CH

                  INT 21H

CODE ENDS

END START

RESULT:

Thus the  message is displayed on the CRT screen of a microcomputer using DOS calls