MICROPROCESSOR PRACTICAL
PAPER – ELSC P304
NAME:
ROLL NO.:
DEPARTMENT OF ELECTRONIC SCIENCE
BERHAMPUR UNIVERSITY, BHANJA BIHAR, ODISHA - 760007
INDEX
SL.NO NAME OF THE EXPERIMENT
1.
PAGE NO
Addition of two 8-bit Numbers: Sum 8- 01-02
bit
2.
Addition of two 16-bit Numbers: Sum 03
16 Bit
3.
Addition of two 8-bit Numbers: Sum 04
16-Bit
4.
Subtraction of two 8-bit Numbers
05-06
5.
1’s Complement of 8-bit Number
07
6.
1’s Complement of 16-bit Number
08
7.
2’s Complement of 8-bit Number
09
8.
2’s Complement of 16-bit Number
10-11
9.
Verify for shift of 8-bit Number left by 12
one bit
10.
Verify for shift of 16-bit Number left 13
by one Bit
11.
Verify for Sum of series of 8-bit 14-15
Numbers
REMARKS
EXPERIMENT NUMBER: -01
AIM OF THE EXPERIMENT: Write a Program using 8085 & verify for: Addition of two 8-bit numbers:
APPARATUS REQUIRED: i.8085 Microprocessor Kit
ii.5V Power Supply
PROGRAM: Memory Address Machine Codes Mnemonics Operands Comments
2000
21,01,25
LXI
H, 2501
Get address of first number in
pair
2003
7E
MOV
A, M
Move 1st no. into accumulator
2004
23
INX
H
The HL Pair addresses 2500H
2005
86
ADD
M
Address the 2nd number
2006
23
INX
H
HL pairs 2503H
2007
77
MOV
M, A
Store result in 2503H
2008
EF
RST
Terminate
INPUT DATA: 2101 -13H
2102-12H
RESULT: 2103-25H
CONCLUSION: The assembly language program for 8-bit addition of two numbers were executed
successfully by using 8085 Microprocessor kit.
1
FLOW CHART:
START
GET THE 1ST NUMBER
GET THE 2ND NUMBER
ADD TWO NUMBER
STORE THE RESULT
END
2
EXPERIMENT NUMBER: - 02
AIM OF THE EXPERIMENT: Write a program using 8085 & verify for: Addition of two 16-bit numbers.
APPARATUS REQUIRED: 8085 Microprocessor kit
5V Power Supply
PROGRAM: Memory address Machine codes
2000
Mnemonics
Operands
Comments
LHLD
200C
Load the HL register with 1st
2A, 0C, 20
numbers.
2003
EB
DCHG
2004
2A, 0E, 20
LHLD
Exchange the HL & DE register
200E
Load the HL register with 2nd
number
2007
19
DAD
2008
22, 10 ,20
SHLD
200B
76
HLT
ADD HL & DE register
2010
Store the result in 2010
Terminate
INPUT DATA: 200C – CA (LSB of 1st Number)
200D – A7(MSB of 1st Number)
200E – 6B (LSB of 2nd Number)
200F – B9 (MSB of 2nd Number)
RESULT: 2010 – 35 (LSB of 1st Number + LSB of 2nd Number)
2011 – 61(MSB of 1st Number + MSB of 2nd Number)
CONCLUSION: The assembly language program for 16-bit addition of two numbers are executed
successfully by using 8085 Microprocessor kit.
3
EXPERIMENT NUMBER: -03
AIM OF THE EXPERIMENT: To write a program using 8085 & verify addition of two 8-bit numbers: 16-bits.
APPARATUS REQUIRED: 8085 Microprocessor kit
5V Power Supply
PROGRAM: Memory address Machine codes
Mnemonics
Operands
Comments
2001
21, 20, 20
LXI
H, 2020
Get address for 1st in pair.
2004
0E, 00
MVI
C, 00
Counter is set to be 0
2006
7E
MOV
A, M
Move 1st no. into accumulator
2007
23
INX
H
The HL pair address 2021H
2008
86
ADD
M
Add the 1st no. with 2nd no.
2009
D2, 0D, 20
JNC
200DH
Carry? No, Go to address 200D
200C
0C
INR
C
Yes, the increment counter
200D
32, 50, 20
STA
2050H
LSBs of Sum in 2050H
2010
7E
MOV
A, C
MSB of Sum in an accumulator
2011
32,51,20
STA
2051H
MSBs of Sum in 2051H
2014
76
HLT
Terminate
INPUT DATA: 2020 – 98H
2021 - 9AH
RESULT: 2050 – 32H (LSBs of Sum)
2051 – 01H (MSBs of Sum)
CONCLUSION: The assembly language program for addition of two 8-bit numbers executed successfully by
using 8085 Microprocessor kit.
4
EXPERIMENT NUMBER: -04
AIM OF THE EXPERIMENT:
Write a program using 8085 & verify for: Subtraction of two 8-bit numbers.
APPARATUS REQUIRED:
8085 Microprocessor Kit
5V Power supply
PROGRAM:
Memory address Machine codes
2000
21, 01 ,75
Mnemonics
Operands
Comments
LXI
H, 2501
Get address of I 87 number in HL
Pair
2003
7E
MOV
A, M
Move 1st number in accumulator
2004
23
INX
H
HL pairs 2502H
2005
96
SUB
M
Subtract 2nd number from 1st
number
2006
23
INX
H
HL pairs 2543H
2007
77
MOV
M, A
Movements of accumulator
2008
76
HLT
Terminate
INPUT DATA:
2501 – 20H
2502 – 10H
RESULT:
2503 – 10H
CONCLUSION:
The assembly language program for subtraction of two 8-bit number was executed
successfully by using 8085 Microprocessor Kit.
5
FLOW CHART:
START
GET THE 1ST NUMBER
GET THE 2ND NUMBER
ADD TWO NUMBER
STORE THE RESULT
END
6
EXPERIMENT NUMBER: -05
AIM OF THE EXPERIMENT :
Write a program using 8085 and verify for : find one’s complement of an 8bit number .
APPARATUAS REQUIRED :
1. 8085 Microprocessor kit
2. 5V power supply
PROGRAM :
Memory
Machine Code
Mnemonics
Operands
Comments
2000
3A,01,25
LDA
2501H
Get data in accumulator
2003
2F
CMA
2004
32,02,25
STA
2007
76
HLT
Take it and complement
2502H
Store the result in2502H
Halt
DATA :
2501-96H
RESULT :
2502-69H
CONCLUSION :
The assembly language programme for one’s complement of a 8 bit number was executed
successfully by using 8085 microprocessor Kit.
7
EXPERIMENT NUMBER: - 06
AIM OF THE EXPERIMENT:Write a program using 8085 and verify for: find one’s complements of 16-bit power supply.
APPRATUS REQUIRED :1.8085 microprocessor kit
2. 5V power supply
PROGRAM:
Memory
Machine
Mnemonics
Operands
Comments
LXI
H,2501H
Add. Of Ls Bs of the no. 8 LSBs of
Code
2000
21,01,25
the no. in accumulator
2003
7E
MOV
A,M
Complement of 8 LSBs of the no.
2004
2F
CMA
2005
32,13,25
STA
2503H
Store 8 LSBs of result.
2006
23
INX
H
Address of 8 MSBs of the no.
2009
7E
MOV
AM
8 MSBs of the no. of accumulator
200A
2F
CMA
200B
32,04,25
STA
200E
76
HLT
Complement of 8 LSBs of the no.
Complement of 8 MSBs of the no.
2504
Store of 8 MSBs of the result.
Halt
DATA :
2501-85H , LSBs of the number.
2502-54H , MBBs of the number.
RESULT :
2503-7AH, LSBs of the result.
2504-ABH , MSBs of the result.
CONCLUSION :
The assembly language program for one’s complement of a 16-bit , number was executed
successfully by using 8085 microprocessor kit.
8
EXPERIMENT NUMBER: -07
AIM OF THE EXPERIMENT: Write a program using 8085 & verify for: find Two’s complement of 8-bit number.
APPARATUS REQUIRED: 8085 Microprocessor Kit
5V Power Supply
PROGRAM: Memory address
Machine Code Operands
2000
2A,01,25
Mnemonics
Comments
LDA
Get data in accumulator take it’s
2501H
one’s complement
2003
2F
2004
3C
2005
32,02,25
2008
76
CMA
Take two’s complement
A
INX
Store result in 2502H
2502H
STA
HLT
Stop
DATA: 2501-46H
RESULT: 2502-6AH
CONCLUSION: The assembly language program for two’s complement of an 8-bit number was executed
successfully by using 8085 Microprocessor.
9
EXPERIMENT NUMBER: -08
AIM OF THE EXPERIMENT: Write a program using 8085 Microprocessor & verify for find two’s complement of a
16-bit number.
APPARATUS REQUIRED: •
8085 Microprocessor Kit
•
5v Power Supply
PROGRAM: Memory
Machine
address
code
2000
21,01,25
Label Mnemonics Operands
LXI
H,2501H
Comments
Address of the 8bit of the
number
2003
06,00
MVI
B,00
Use register B to store carry
2005
7E
ADI
A,M
8 LSBs in accumulator
2006
2F
STA
1’s complement of LSBs of the
number
2007
C6,01
INR
01
2’s complement of 8 LSBs of the
number
2009
32,03,25
STA
2503H
200C
D2,10,20
JNC
GO
200F
04
INR
B
Store carry
2010
23
INX
H
Address of 8LsBs of the number
2012
7E
MOV
A,M
1’s complement of LSBs of the
GO
Store 8LsBs of the result
number
2011
2F
CMA
8MsBs in accumulator
2013
80
ADD
B
Add carry
2014
32,04,25
STA
2504H
Store 8MsBs of the result
2017
76
HLT
Stop
DATA: •
2501-8C (LSBs of the number)
•
2502-5B (MSBs of the number)
10
RESULT: •
2503-74 (LSBs of the result)
•
2504-A4 (MSBs of the result)
CONCLUSION: The assembly language program for 2’s compliment of a 16-bit number was executed
successfully by using 8085 Microprocessor kit.
11
EXPERIMENT NUMBER - 09
AIM OF THE EXPERIMENT :
Write a program using 8085 & verify for: shift 8-bit number let’s by one bit.
APPARATUS REQUIRED :
8085 Microprocessor kit
5V power supply
PROGRAM :
Memory
Machine code
Mnemonics
Operands
Comments
2000
8A,01,25
LDA
2501H
Get data in accumulator
2003
87
ADD
A
Shift 11 left by one bit
2004
32,02,25
STA
2502H
Store result in accumulator
2007
76
HLT
address
Halt
DATA :
2501-65H
RESULT :
2502-CAH
CONCLUSION :
The assembly language program for shift on bit number left by one bit was executed
successfully by using 8085 microprocessor kit.
12
EXPERIMENT NUMBER:-10
AIM OF THE EXPERIMENT:Write a program using 8085 & Verify for : shift a 16 bit number by 1-bit.
APPARATUS REQUIRED:8085 Microprocessor kit
5V power supply
PROGRAM:MEMORY
MACHINE
MNEMONICS
OPERANDS
COMMENTS
ADDRESS
CODE
2000
2A,01,25
LHLD
2501H
Get data in HL pair.
2003
29
DAD
H
Shift left by one bit.
2004
22,03,25
SHLD
2503H
Store result in 2503 &
2501H
2001
76
HLT
Stop
DATA:2501-96H,LsBs of the number
2502-75H,MsBs of the number
RESULT:2503-2C,LsBs of the result
2594-EB,MsBs of the result
CONCLUSION:The assembly language program for shift a 16 bit number by one bit was executed
successfully by using 8085 Microprocessor Kit.
13
EXPERIMENT NUMBER: -11
AIM OF THE EXPERIMENT: Write a program using 8085 Microprocessor & verify for: Sum of the series of 8-bit
numbers.
APPARATUS REQUIRED: •
8085 Microprocessor Kit
•
5v Power Supply
PROGRAM: Memory
Machine
address
code
2400
Label
Mnemonics Operands
Comments
21, 00, 25
LXI
H, 2500H
Address for the count in HL pair
2403
4E
MOV
C, M
The count in register c
2404
3E, 00
MVI
A, 00
Initial value of Sum = 00
2406
23
INX
H
Address of next data in HL pair
2407
86
LOOP ADD
M
Previous sum + next sum
2408
0D
DCB
C
Decrement counts
2409
C2, 06, 24
JNZ
LOOP
If count=0? No jump needed
240C
32, 50, 24
STA
2405H
Store sum in 2405H
240F
76
HLT
Terminate
INPUT DATA:
2500 – 04
2501 – 16
2502 – 2B
2503 – 39
2504 – 12
RESULT:
2504 – 8C
CONCLUSION:
The assembly language program for Sum of a series of 8-bit number was executed
successfully by using 8085 Microprocessor Kit.
14
FLOW CHART:
START
INITIAL HL PAIR
COUNT IN REGISTER C
INITIAL VALUE OF SUM = n
INCREMENT HL PAIR TO GET NEXT NUMBER
SUM = PREVIOUS SUM + NEXT NUMBER
DECREMENT COUNT
NO
IS COUNT IS 0=?
YES
STORE SUM
END
15