INTERRUPT TABLE

Interrupt no:0x33 Functio :MOUSE

t no:0X33,function

MOUSE

input

output

service no

purpose

ax

1

show mouse pointer

ax

2

hide mouse pointer

ax

0

intialize mouse pointer

ax

0

ax

7

x cordinate restriction

cx

x1 cordinate

dx

y1 cordinate

ax

8

y cordinate restriction

cx

x2 cordinate

dx

y2 cordinate

ax

3

get mouse position

bx

Button

cx

X position

dx

Y position

ax

4

set mouse position

cx

x cordinate

dx

y cordinate

ax

5

Get button press information

bx

b=0 left

b=1 right

b=2 cent

ax

button status

bx

button press counter

cx

x cordinate

dx

y cordinate

ax

9

bx

host spot from left

cx

hot spot from rigjt

es:ds

segment:offset of pointer

ax

0XA

set text pointer type

bx

pointer type

0-soft type

cx

1-hardware type

dx

starting line number

ending line number

Interrupt No:0X10

ah

2

Positioning Cursor

dh

row no

dl

col no

bh

page no

ah

6

Clear screen/Scroll screen

al

0 to clear

n line to scroll

ch

st row

cl

st col

dh

end row

dl

end col

bh

col

ah

6

Scroll window 1 line up

al

1

bh

color

ch

st row

cl

st col

dh

end row

dl

end row

ah

8

Read a char from screen

bh

page

ah

ah

9

Write a char on screen

bh

page

ah

ah

0

set video mode

al

0x13

switch to 320 by 200 and 256 color graphics mode

0x12

Switch to 640 by 480 and 16 color mode

0x11

Switch to 640 by 480 and 2 color mode

0x3

Switch to 25 by 80 and 16 color text mode

0x2

switch to 80 by 25 and color text mode

0x1

switch to 40 by 25 and 16 color text mode

ah

3

Get cursor position

bh

page number

ch

starting line for cursor

cl

ending line for cursor

dh

row position

dl

col position

ah

5

set to active page

bh

page number

Interrupt No: 0x21

ah

1

Echo input character on screen

al

data

ah

2

Character output

dl

character

ah

5

Printer output

dl

character

ah

9

display string

ds:dx

string

ah

0XE

select disk

dl

drive no

ah

0XF

open file

ds:dx

file control

ah

0X10

close file

ds:dx

file control

ah

0X11

find first file

ds:dx

file control

ah

0X12

find next file

ds:dx

file control

ah

0X13

delete file

ds:dx

file control

ah

0X16

create file

ds:dx

file control

ah

0X17

renaming file

ds:dx

special file control

ah

0X19

get current disk

al

drive number

ah

0x23

get file size

ds:dx

file control

ah

0X25

set interrupt

al

interrupt no

ds:dx

new function

ah

0X35

get interrupt vector

al

interrupt no

es:bx

ah

0X39

create directory

ds:dx

directory name

ah

0x3A

delete directory

ds:dx

directory name

0X3B

set current directory

directory name

Interrupt No.: 0X16 Function :Key Board

ah

0

get the scan code

ah

al

get ascii code