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Program display the ascii characters on the screen using BIOS interrupt (INT 10H)

Posted By: Vilmos Fischer     Category: Assembly Language     Views: 8207

A Program display the ascii characters on the screen using BIOS interrupt(INT 10H).

Code for Program display the ascii characters on the screen using BIOS interrupt (INT 10H) in Assembly Language

.MODEL SMALL
.CODE
        ORG     100H
BEGIN:
        JMP SHORT MAIN
        CTR     DB      00
        COL     DB      24
        ROW     DB      04
        MODE    DB      ?

MAIN PROC NEAR
        CALL B10MODE
        CALL C10CLR

A20:
        CALL D10SET
        CALL E10DISP
        CMP CTR,0FFH
        JE A30
        INC CTR
        ADD COL,02
        CMP COL,56
        JNE A20
        INC ROW
        MOV COL,24
        JMP A20

A30:
        CALL F10READ
        CALL G10MODE
        MOV AX,4C00H
        INT 21H
MAIN ENDP

B10MODE PROC NEAR
        MOV AH,0FH
        INT 10H
        MOV MODE,AL
        MOV AH,00H
        MOV AL,03
        INT 10H
        RET
B10MODE ENDP

C10CLR PROC NEAR
        MOV AH,08H
        INT 10H
        MOV BH,AH
        MOV AX,0600H
        MOV CX,0000
        MOV DX,184FH
        INT 10H
        MOV AX,0610H
        MOV BH,16H
        MOV CX,0418H
        MOV DX,1336H
        INT 10H
        RET
C10CLR ENDP

D10SET PROC NEAR
        MOV AH,02H
        MOV BH,00
        MOV DH,ROW
        MOV DL,COL
        INT 10H
        RET
D10SET ENDP

E10DISP PROC NEAR
        MOV AH,0AH
        MOV AL,CTR
        MOV BH,00
        MOV CX,01
        INT 10H
        RET
E10DISP ENDP

F10READ PROC NEAR
        MOV AH,10H
        INT 16H
        RET
F10READ ENDP

G10MODE PROC NEAR
        MOV AH,00H
        MOV AL,MODE
        INT 10H
        RET
G10MODE ENDP

END BEGIN









OUTPUT
***********

     ? ? ? ? ? ? • ? ? ? ? ? ? ? ¤
   ? ? ? ? ¶ § ? ? ? ? ? ? ? ? ? ?
     ! " # $ % & ' ( ) * + , - . /
   0 1 2 3 4 5 6 7 8 9 : ; < = > ?
   @ A B C D E F G H I J K L M N O
   P Q R S T U V W X Y Z [ \ ] ^ _
   ` a b c d e f g h i j k l m n o
   p q r s t u v w x y z { | } ~ ¦
   Ç ü é â ä à å ç ê ë è ï î ì Ä Å
   É æ Æ ô ö ò û ù ÿ Ö Ü ¢ £ ¥ P ƒ
   á í ó ú ñ Ñ ª º ¿ ¬ ¬ ½ ¼ ¡ « »
   ¦ ¦ ¦ ¦ ¦ ¦ ¦ + + ¦ ¦ + + + + +
   + - - + - + ¦ ¦ + + - - ¦ - + -
   - - - + + + + + + + + ¦ _ ¦ ¦ ¯
   a ß G p S s µ t F T O d 8 f e n
   = ± = = ( ) ÷ ˜ ° • • v n ² ¦  
  
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Vilmos Fischer
Vilmos Fischer author of Program display the ascii characters on the screen using BIOS interrupt (INT 10H) is from Frankfurt, Germany.
 
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