mp&mc lab manual

Department of Electronics and Communications Engineering

Experiment No: 1

ADDITION OF TWO 16-BIT NUMBERS

AIM :To write an assembly language program to ADD two 16-BIT numbers

using 8086 microprocessor

Apparatus Required :

1. 8086 Micro processor kit.2. Key Board.3. Adapter.

PROCEDURE:

1. Connect the power supply of +5v to the Kit.

2. Reset the Microprocessor Kit.

3. To Enter the program, the syntax is

RESET

A STARTING ADDRESS

4. Then Enter all the instructions of the program.

5. To give the input data, the syntax is

RESET

S STARTING ADDRESS

Then enter the input data and use comma(,)to enter the next data.

6. To execute the program, syntax is

RESET

GO STARTING ADDRESS

7. To see the output which is present in output location the syntax is

RESET

S STARTING ADDRESS

Bheema Institute of Science and Technology 1


PROGRAM:MOV SI,@INPUT ADDRESS

MOV CL, 00H

MOV AL, [SI]

INC SI

MOV AH, [SI]

INC SI

MOV BL, [SI]

INC SI

MOV BH, [SI]

ADD AX, BX

JNC LABEL (OFFSET ADDRESS)

INC CL

LABEL: MOV SI,@OUTPUT ADDRESS

MOV [SI], AL

INC SI

MOV [SI], AH

INC SI

MOV [SI], CL

INT 03

RESULT: WITHOUT CARRY WITH CARRY

AH AL AH AL

BH BL BH BL------------------------------------------ ------------------------------------ AH AL CL=0 AH AL CL=1


12 34

556

68

70

A4

AB

AB

CD

CD

57 9A


Experiment No: 2

SUBSTRACTION OF TWO 16-BIT NUMBERS

AIM :To write an assembly language program to SUBSTRACT two 16-BIT

numbers using 8086 microprocessor



PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



MOV CL, 00H

MOV AL, [SI]

INC SI

MOV AH, [SI]

INC SI

MOV BL, [SI]

INC SI

MOV BH, [SI]

SUB AX, BX


INC CL

LABEL: MOV SI,@OUTPUT ADDRESS

MOV [SI], AL

INC SI

MOV [SI], AH

INC SI

MOV [SI], CL

INT 03

RESULT: WITHOUT BORROW WITH BORROW

AH AL AH AL

BH BL BH BL------------------------------------------ ------------------------------- AH AL CL=0 AH AL CL=1

Bheema Institute of Science and Technology

56 78

534

22

12

66

34

56

12

78

DD 9A


Experiment No: 3

MULTIPLICATION OF TWO 16-BIT NUMBERS

AIM :To write an assembly language program to MULTIPLY two 16-BIT numbers

using 8086 microprocessor



PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS




MOV AL, [SI]

INC SI

MOV AH, [SI]

INC SI

MOV BL, [SI]

INC SI

MOV BH, [SI]

MUL BX

MOV SI,@OUTPUT ADDRESS

MOV [SI], AL

INC SI

MOV [SI], AH

INC SI

MOV [SI], DL

INC SI

MOV [SI], DH

INT 03

RESULT:

AH AL

BH BL ------------------------------------------------------------------------- DH DL AH AL


12 34

54B

05

4C

5A A3 70


Experiment No: 4

DIVISION OF 32-BIT NUMBER BY 16-BIT NUMBER

AIM :To write an assembly language program to DIVIDE a 32-BIT number by

16-bit number using 8086 microprocessor



PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS




MOV AL, [SI]

INC SI

MOV AH, [SI]

INC SI

MOV DL, [SI]

INC SI

MOV DH, [SI]

INC SI

MOV BL, [SI]

INC SI

MOV BH, [SI]

DIV BX


MOV [SI], AL

INC SI

MOV [SI], AH

INC SI

MOV [SI], DL

INC SI

MOV [SI], DH

INT 03

RESULT:

DH DL AH AL

BH BL ------------------------------------------------------------------------------

DH DL AH AL

02 014B

04

4C

F5 AA 9C

4C

4C



Experiment No: 5

SUM OF N NUMBERS

AIM :To write an assembly language program to perform the addition of N




PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS


PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX

XOR DX, DX

MOV SI,@INPUT ADDRESS

MOV CL, [SI]

BACK: INC SI

MOV AL, [SI]

ADD BX, AX


INC DL

LABEL: LOOP BACK (OFFSET ADDRESS)


MOV [SI], BL

INC SI

MOV [SI], BH

INC SI

MOV [SI], DL

INT 03

RESULT: CL

AL

AL

AL

--------------------------------------------

BH BL DL


03

AA

BB

CC

02 31 00


Experiment No: 6

SUM OF SQUARES OF N NUMBERS

AIM :To write an assembly language program to perform the addition of squares of N




PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX

XOR DX, DX


MOV CL, [SI]

BACK: INC SI

MOV AL, [SI]

MUL AL

ADD BX, AX


INC DL



MOV [SI], BL

INC SI

MOV [SI], BH

INC SI

MOV [SI], DL

INT 03

RESULT: CL

AL

AL

AL

--------------------------------------------

BH BL DL


03

AA

BB

CC

9C 0D 01


Experiment No: 7

SUM OF CUBES OF N NUMBERS

AIM :To write an assembly language program to perform the addition of cubes of N




PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX

XOR DX, DX


MOV CL, [SI]

BACK: INC SI

MOV AL, [SI]

MOV AL, DL

MUL DL

MUL AL

ADD BX, AX


INC DL



MOV [SI], BL

INC SI

MOV [SI], BH

INC SI

MOV [SI], DL

INT 03

RESULT: CL

AL

AL

AL

--------------------------------------------

BH BL DL


03

0A

0B

0C

0F DB 00


Experiment No:8

ARITHMETIC MEAN OF N NUMBERS

AIM :To write an assembly language program to perform the arithmetic mean of N




PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX

XOR DX, DX


MOV CL, [SI]

MOV DL, CL

DEC CL

INC SI

MOV AL, [SI]

BACK: INC SI

MOV BL, [SI]

ADD AX, BX


INC AH


DIV DL


MOV [SI], AL

INC SI

MOV [SI], AH

INT 03

RESULT: DL=CL AL AL

DL AL

-----------------------

AL AH AL-------------------------

AH AL


03

01

02

03

0600

06

03

0200


Experiment No: 9

FINDING MINIMUM NUMBER AMONG 8-BIT DATA

AIM :To write an assembly language program to find a minimum number from given

8-bit N numbers using 8086 microprocessor



PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX


MOV CL, [SI]

DEC CL

INC SI

MOV AL, [SI]

BACK: INC SI

MOV BL, [SI]

CMP AL, BL

JC LABEL (OFFSET ADDRESS)

MOV AL, BL



MOV [SI], AL

INT 03

RESULT:

CL:

DATA:

-----------------------------------------------------------------AL:


05

06 02 01 09 08

01


Experiment No: 10

FINDING MAXIMUM NUMBER AMONG 8-BIT DATA

AIM:To write an assembly language program to find a maximum number from given


Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX


MOV CL, [SI]

DEC CL

INC SI

MOV AL, [SI]

BACK: INC SI

MOV BL, [SI]

CMP AL, BL


MOV AL, BL



MOV [SI], AL

INT 03

RESULT:

CL:

DATA:

-----------------------------------------------------------------AL:


05

06 02 01 09 08

09


Experiment No: 11

FINDING MINIMUM NUMBER AMONG 16-BIT DATA

AIM:To write an assembly language program to find a minimum number from given


Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX


MOV CL, [SI]

DEC CL

INC SI

MOV AL, [SI]

INC SI

MOV AH, [SI]

BACK: INC SI

MOV BL, [SI]

INC SI

MOV BH, [SI]

CMP AX, BX


MOV AX, BX



MOV [SI], AX

INT 03

RESULT: CL:

3 2 1

DATA:

-----------------------------------------------------------------------AH: AL:


03

06 02 01 09 08

01

06

09


Experiment No: 12FINDING MAXIMUM NUMBER AMONG 16-BIT DATA

AIM:To write an assembly language program to find a maximum number from given


Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX


MOV CL, [SI]

DEC CL

INC SI

MOV AL, [SI]

INC SI

MOV AH, [SI]

BACK: INC SI

MOV BL, [SI]

INC SI

MOV BH, [SI]

CMP AX, BX


MOV AX, BX



MOV [SI], AX

INT 03

RESULT: CL:

3 2 1

DATA:

-----------------------------------------------------------------------AH: AL:


03

06 02 01 09 08

08

06

06


Experiment No: 13

ARRANGING GIVEN 8-BIT DATA IN ASCENDING ORDER

AIM:To write an assembly language program to arrange given N numbers in ascending

order using 8086 microprocessor

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX


MOV CL, [SI]

DEC CL

MOV DX, CX

AGAIN: INC SI

MOV AL, [SI]

BACK: INC SI

CMP AL, [SI]


XCHG AL, [SI]


SUB SI, DX

MOV [SI], AL

MOV CX, DX

LOOP AGAIN (OFFSET ADDRESS)

INT 03

RESULT: CL:

I/P DATA:

-----------------------------------------------------------------------O/P DATA:


05

0E 0B 0C 0A 0D

0A 0E0D0B 0C


Experiment No: 14

ARRANGING GIVEN 16-BIT DATA IN DESCENDING ORDER

AIM:To write an assembly language program to arrange given N numbers in ascending

order using 8086 microprocessor

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX


MOV CL, [SI]

DEC CL

MOV DX, CX

AGAIN: INC SI

MOV AL, [SI]

BACK: INC SI

CMP AL, [SI]


XCHG AL, [SI]


SUB SI, DX

MOV [SI], AL

MOV CX, DX

LOOP AGAIN (OFFSET ADDRESS)

INT 03

RESULT: CL:

I/P DATA:

-----------------------------------------------------------------------O/P DATA:


05

0E 0B 0C 0A 0D

0E 0A0B0D 0C


Experiment No: 15

CONVERSION OF CELSIUS TEMPARATURE INTO FAHRENHEIT TEMPARATURE

AIM:To write an assembly language program to convert Celsius temperature into Fahrenheit

temperature using 8086 microprocessor

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX


MOV AL, [SI]

MOV BL, 09

MUL BL

MOV BL, 05

DIV BL

MOV BL, 20

ADD AX, BX


MOV [SI], AX

INT 03

RESULT:

F= (9/5) C+32

AL HEXA=19=>DECI=25

F=(9/5)25+32

F=77 HEXA=77=>DECI=4D

---------------------------------------------------------------AH AL


19

00 4D


Experiment No: 16

CONVERSION OF FAHRENHEIT TEMPARATURE INTO CELSIUS TEMPARATURE

AIM:To write an assembly language program to convert Fahrenheit temperature into Celsius

temperature using 8086 microprocessor

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX


MOV AL, [SI]

MOV BL, 20

SUB AL, BL

MOV BL, 05

MOV BL

MOV BL, 09

DIV BL


MOV [SI], AX

INT 03

RESULT:

C= (F-32) *(5/9)

AL HEXA=4D=>DECI=77

C= (77-32)*(5/9)

C=19 HEXA=19=>DECI=25

---------------------------------------------------------------AH AL


4D

00 19


Experiment No: 17

CONVERSION OF PACKED BCD INTO UNPACKED BCD NUMBER

AIM:To write an assembly language program to convert a packed BCD number into unpacked

BCD number using 8086 microprocessor

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX


MOV AL, [SI]

AND AL, 0F

MOV BL, [SI]

MOV CL, 04

ROR BL, CL

AND BL, 0F


MOV [SI], AL

INC SI

MOV [SI], BL

INT 03

RESULT: CL AL PACKED BCD

BL

ROR BL,CL

BL AL

AND

---------------------------------------------------------------BL AL

UNPACKED BCD


19

09 01

91

0F 0F

04 91

91


Experiment No: 18

CONVERSION OF UNPACKED BCD INTO PACKED BCD NUMBER

AIM:To write an assembly language program to convert an unpacked BCD number into packed

BCD number using 8086 microprocessor

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX


MOV AL, [SI]

INC SI

MOV BL, [SI]

MOV CL, 04

ROR BL, CL

OR AL, BL


MOV [SI], AL

INT 03

RESULT: CL

BL AL UNPACKED BCD

ROR BL, CL

BL

AL

BL

--------------------------------------------------------------- AL

PACKED BCD



02

24

04

20

04

20

04

Experiment No: 19

CONVERSION OF DECIMAL INTO HEXADECIMAL NUMBER

AIM:To write an assembly language program to convert a DECIMAL number into

HEXADECIMAL number using 8086 microprocessor

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX


MOV AL, [SI]

MOV BL, AL

AND AL, 0F

MOV BH, AL

MOV CL, 04

ROR BL, CL

AND BL, 0F

MOV AL, 0A

MUL BL

ADD AL,BH


MOV [SI], AL

INT 03

RESULT: CL AL DECIMAL

BH BL

AL

BH

--------------------------------------------------------------- AL

HEXADEIMAL


19

13

09

01

04

01

12


Experiment No: 20

CONVERSION OF HEXADECIMAL INTO DECIMAL NUMBER

AIM:To write an assembly language program to convert a HEXADECIMAL number into

DECIMAL number using 8086 microprocessor

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:XOR AX, AX

XOR BX, BX

XOR CX, CX

XOR DX, DX


MOV AL, [SI]

MOV BL, 64

DIV BL

MOV DL, AL

MOV AL, AH

MOV AH, 00

MOV BL, 0A

DIV BL

MOV CL, AL

MOV BL, AH

MOV AX, 0100

MUL DX

INC SI

MOV [SI], AX

MOV AX, 0010

MUL CX

ADD AX, BX

ADD AX, [SI]


MOV [SI], AX

INT 03

RESULT: DL [SI] AX

AL CL BX

BL -------------------------------------------------- HEXADECIMAL

AX DECIMAL


FF

0255

05 0050

02

05

0200

0005


Experiment No: 21

FINDING LARGEST NUMBER AMONG 8-BIT DATA USING 8051

AIM:To write an assembly language program to finding the largest number among given 8-BIT

N numbers using 8051 microcontroller.

Apparatus Required:

1. 8051 Micro Controller kit.2. Key Board.3. Adapter.

PROCEDURE:


2. Reset the Microcontroller Kit.


RESET

A STARTING ADDRESS



RESET

MD INPUT ADDRESS

Then enter the input data and use enter ( ) to enter the next data.


RESET

G STARTING ADDRESS


RESET

MD STARTING ADDRESS

8. To view the program for modifications the syntax is

RESET

Z STARTING ADDRESS


PROGRAM:MOV DPTR, #STARTING ADDRESS

MOVX A, @DPTR

MOV R1, A

INC DPTR

MOVX A, @DPTR

DEC R1

L3: MOV B, A

INC DPTR

MOVX A, @DPTR

CJNE A, B, L1 (OFFSET ADDRESS)

L1: JNC L2 (OFFSET ADDRESS)

XCH A, B

L2: DJNZ R1, L3 (OFFSET ADDRESS)

MOV DPTR, #OUTPUT ADDRESS

MOVX @DPTR, A

L4: SJMP L4 (OFFSET ADDRESS)

RESULT:

R1:

DATA:

-----------------------------------------------------------------A:


05

06 02 01 09 08

09


Experiment No: 22

FINDING SMALLEST NUMBER AMONG 8-BIT DATA USING 8051

AIM:To write an assembly language program to finding the SMALLEST number among given

8-BIT N numbers using 8051 microcontroller.

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

MD INPUT ADDRESS



RESET

G STARTING ADDRESS


RESET

MD STARTING ADDRESS


RESET

Z STARTING ADDRESS



PROGRAM:MOV DPTR, #STARTING ADDRESS

MOVX A, @DPTR

MOV R1, A

INC DPTR

MOVX A, @DPTR

DEC R1

L3: MOV B, A

INC DPTR

MOVX A, @DPTR

CJNE A, B, L1 (OFFSET ADDRESS)

L1: JC L2 (OFFSET ADDRESS)

XCH A, B

L2: DJNZ R1, L3 (OFFSET ADDRESS)

MOV DPTR, #OUTPUT ADDRESS

MOVX @DPTR, A


RESULT:

R1:

DATA:

-----------------------------------------------------------------A:


05

06 02 01 09 08

01


Experiment No: 23

READING AND WRITING ON A PARALLEL PORT OF 8051

AIM:To write an assembly language program to perform the operations like reading and writing

the data on a parallel port of 8051 microcontroller.

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

MD INPUT ADDRESS



RESET

G STARTING ADDRESS


RESET

MD STARTING ADDRESS


RESET

Z STARTING ADDRESS



PROGRAM:

MOV DPTR, #STARTING ADDRESS

MOV A, 90

MOVX @DPTR, A

INC DPTR

MOVX A, @DPTR

MOV 90, A

INC DPTR

MOV A, 90

MOVX @DPTR, A


RESULT:

PORT IS ON

INPUT DATA: DATA IS READ OUTPUT

DATA IS WRITE


00

85

FF

85

85

00


Experiment No: 24

BIT AND BYTE OPERATIONS BY USING 8051

AIM:To write an assembly language program to perform the BIT and BYTE operations like set,

reset and swap by using 8051 microcontroller.

Apparatus Required:


PROCEDURE:




RESET

A STARTING ADDRESS



RESET

MD INPUT ADDRESS



RESET

G STARTING ADDRESS


RESET

MD STARTING ADDRESS


RESET

Z STARTING ADDRESS


PROGRAM: BIT OPERATONS

SET A BIT:


MOVX A, @DPTR

SETB 0E5

INC DPTR

MOVX @DPTR, A


RESET A BIT:


MOVX A, @DPTR

CLR 0E5

INC DPTR

MOVX @DPTR, A


COMPLIMENT A BIT:


MOVX A, @DPTR

CPL 0E5

INC DPTR

MOVX @DPTR, A


RESULT:

SET A BIT

CLEAR A BIT

INPUT OUTPUT

COMPLIMENT A BIT


C5

00

E5

C5

20

E5

20 00


PROGRAM: BYTE OPERATONS

SWAP A BYTE:


MOVX A, @DPTR

SETB A

INC DPTR

MOVX @DPTR, A


COMPLIMENT A BYTE:


MOVX A, @DPTR

CPL A

INC DPTR

MOVX @DPTR, A


RESULT:

SWAP A BYTE

INPUT OUTPUT

COMPLIMENT A BYTE


C5

00

5C

FF

FF 00


Experiment No: 16

INTERFACING A STEPPER MOTOR WITH 8086 MICROPROPROCESSOR

AIM:To write an assembly language program to interface a stepper motor by using 8086

microprocessor to control the speed and rotating direction i.e. clockwise and anticlockwise of a stepper motor.

Apparatus Required:

1. 8086 Micro processor kit.2. Key Board.3. Adapter.4. Stepper motor.

PROCEDURE:




RESET

A STARTING ADDRESS



RESET

S STARTING ADDRESS



RESET

GO STARTING ADDRESS


RESET

S STARTING ADDRESS



PROGRAM:MOV AX, 0000

MOV ES, AX

MOV DX, 0FFE6

MOV AL, 80

OUT DX, AL

CALLS 0FE00:01ED

JMP START

*/DISPLAY MESSAGE STRING*/

“0A 0D 45 4E 54 45 MES1: DB 0A, 0D,’ENTER DIRECTION’

52 20 44 49 52 45

43 54 49 4F 4E

0A 0D 41 2D 41 4E DB 0A, 0D,’A-ANTI CLOCKWISE

C-CLOCKWISE’, 00H

54 49 43 4C 4F 43

4B 57 49 53 45 20

20 20 20 20 43 2D

43 4C 4F 43 4B 57

49 53 45 00

2E 8D 16 12 20 START: LEA DX, MES1

MOV AX, DX

CALLS 0FE00:0013

GET: CALLS 0FE00:00A9

CMP AL, 41

JE ANTI

CMP AL, 43

JE CLO

JMP GET


*/ROUTINE FOR CLOCKWISE ROTATION OF MOTOR*/

CLO: CALL COMMON

R1: OUT DX, AL

CALL DELAY

RCR AL, 1

JMP R1

*/ROUTINE FOR CLOCKWISE ROTATION OF MOTOR*/

ANTI: CALL COMMON

R2: OUT DX, AL

CALL DELAY

RCL AL, 1

JMP R2

COMMON: CALLS 0FE00:0031

CALLS 0FE00:00

MOV AL, 11

MOV DX, 0FFE0

RET

*/ROUTINE TO CONTROL SPEED OF MOTOR*/

DELAY: MOV CX, @VALUE

SS: LOOP SS

RET


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