Microprocessor Programs

Microprocessor Programs :  

Multiplication of Two 4 bit Numbers

XRA A

LXI H, 2100

MOV B,M

INX H

L1:       ADD M

DCR B

JNZ  L1

STA 2102

HLT

Multiplication of Two 8-bit Numbers

            XRA A

            MOV B,A

            LXI H, 1100

            MOV C,M

            INX H

L2:       ADD M

            JNC L1

            INR B

L1:       DCR C

            JNZ L2

            INX H

            MOV M,A

            INX H

            MOV A,B

            MOV M,A

            HLT

Addition Of Two Numbers:

            LDA 4150

            MOV B,A

            LDA 4151

            ADD M

            STA 4152

            HLT

Addition Of Two no(method 2)

            LXI H,2050

            MOV A,M

            INX H

            ADD M

            INX H

            MOV A,B

            HLT

Subtraction of  Two no

            LDA 4150

            MOV B,A

            LDA 4151

            SUB B

            STA 4152

            HLT

Method 2 : Subtraction of Two No

           

            LXI H,2050

            MOV A,M

            INX H

            SUB M

            INX H

            MOV M,A

            HLT

Biggest of Numbers

            LXI H,4150

            MOV C,M

            INX H

            MOV A,M

LOP:    INX H

            CMP M

            JNC LOP1

            MOV A,M

LOP1   DCR C

            JNZ LOP

            MOV M,A

            HLT

Smallest of the No:

            LXI H,4150

            MOV C,M

LOOP: INX H

            MOV A,M

            INX H

            CMP M

            JC LOOP1

            MOV A,M

LOOP1:DCR C

JNZ LOOP

            MOV M,A

            HLT

Division

XRA A

MOV C,A

LXI H,4150

MOV B,M

INX H

MOV A,M

P1:       SUB B

JC L1

INC C

JMP P1

L1:       ADD B

STA 4153

MOV AMC

STA 4152

HLT

Block Transfer

LXI H,2100

LXI D,2200

MVI C,0A

L1:       MVI A,M

STAX D

INX H

INX D

DCR C

JNZ L1

HLT

RST 7

Ascending Order

            LXI H,4150

            MOV C,M

L1:       MOV B,C

            INX H

            MOV A,M

            PUSH H

            DCR B

            JZ LA1

L2:       INX H

            CMP M

            JC L3

            MOV D,A

            MOV A,M

            MOV M,D

L3:       DCR B

            JNZ L2

            POP H

            MOV M,A

            DCR C

            JMP L1

LA1:    HLT

Decending Order:

LXI H,4150

MOV C,M

L1:       MOV B,C

INX H

MOV A,M

PUSH H

DCR B

JZ LA1

L2:       INX H

CMP M

JNC L3

MOV D,A

MOV A,M

MOV M,D

L3:       DCR B

JNZ L2

POP H

MOV M,A

DCR C

JMP L1

HLT

Binary To BCD

LXI H,2101

MVI C,04

AGAIN:           ORA M

DCR C

JZ FINISH

RLC

FINISH:           INX H

JMP AGAIN

INX H

CPI OA

JC RESULT

MVI A,EE

RESULT:         MOV M,A

MOV M,C

HLT

BCD To Binary

                        MVI D,08

                        LXI H,2100

                        MVI C,04

                        MOV B,M

AGAIN:           MOV A,B

                        INX H

                        ANA D

                        JZ LOOP

                        MVI A,01

LOOP:             MOV M,A

                        MOV A,D

                        RRC

                        MOV D,A

                        DCR C

                        JNZ AGAIN

                        HLT

Decimal to Hexa

XRA A

MOV C,A

LXI H,2100

MOV B,M

L1:                   ADI 64

JNC L2

INR C

DCR B

L2:                   JNZ L1

MOV D,A

INX H

MOV B,M

XRA A

ADI 0A

L3:                   DCR B

JNZ L3

INX H

ADD M

ADD D

JNC L4

INR C

L4:                   INX H

MOV M,C

INX H

MOV M,A

HLT

Hexa Decimal to Decimal

LXI H,4150

LXI B,0000

MOV A,M

SUI 64

 JC L2

INR B

JMP L1

ADI 64

SUI OA

JC L4

INR C

MOV M,B

MOV B,A

MOV A,C

RLC

RLC

RLC

RLC

ADD B

INX H

MOV M,A

HLT