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

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