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rawSun

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Some common DOS functions & interrupts used in 8086



INT
10H



Functions (Content of AH)

Description

00

Set the video mode* as
specified by the content of AL.

02

Set cursor position

BH <- page number(usually 0)

DH <- row number

DL <- column number

03

Return cursor positions

DH <- current row number

DL <- current column number

09

Display the character and attribute

AL <-character to display

BL <-Attribute**

BH <-page number(0)

CX <-counter value (no of times to
repeat the character)

13H

Display character string

AL<- 00(advance cursor) or 01(do
not advance cursor)

BH<- page number(00h)

BL<- Attribute

BP<- Effective address of the
string to be displayed

CX<- Length of the string

DH<- Row in which the string is to
be displayed

DL<- Column in which the string is
to be displayed







*Video
mode



Mode

ROW*COLUMN

COLOR MODE

No. OF COLORS

00

25*40

COLOR

16

01

25*40

COLOR

16

02

25*80

COLOR

16

03(default)

25*80

COLOR

16

07

25*80

MONOCHROME

--





**Attribute


7

6

5

4

3

2

1

0

BL

R

G

B

I

R

G

B

BACKGROUND

FOREGROUND


BL & I
are usually zero.







Black foreground and
blue background the attribute should be 10h.

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tihor

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Thank you for sending this. I was in need of it coz i do not have this notes. Jaach ma pani confuse bhako thiyen.

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rawSun

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MY PLEASURE.....

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Thanks

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