All Micro Processor Programs

String manipulation using 8086 assume cs:code,ds:code code segment org 1000h mov si,1200h mov di,2000h mov cx,04h cld loop1:mov sb loop1, org 1200h db ‘ABCD’ code ends end Interfacing 8253 with 8051 microcontroller mov dptr,#FFCE mov A, 36 movx @dptr,A mov A,#0A mov dptr,#FFC8 movx @dptr,A mov A,#00 movx @dptr,A sjmp 410F Addition Subtraction And Logical Bit Manipulation Using 8051 MicroController Addition clr c mov A,#33h addc A,#21h mov dptr,#4150h mov @dptr,A sjmp 4209

Bit Manipulation(BCD to HEX Conversion) mov A,#(Bcd No) mov r2,A mov A,#0F mov r3,A mov A,r2 ANL A,F0 swap A mov r4,A mov A,#0A mov r5,A mov A,#00 loop addc A,r5 djnz r4,loop addc A,r3 mov dptr,#4150 mov @dptr,A sjmp (here) Interfacing Of 8279 and 8253 Interfacing IC 8279 ORG 4100H MVI A,00 OUT C2 MVI A,CC OUT C2 MVI A,90 OUT C2 MVI A,88 OUT DAT-FF MVI A,FF OUT C0 OUT C0 OUT C0 OUT C0 HLT

Subtraction clr c mov A,#33h subb A,#21h mov dptr,#4150h mov @dptr,A sjmp 4209

Interfacing IC 8253(Generation of square wave) MVI A,36 OUT CC MVI A,0A OUT C8 MVI A,00 OUT C8 HLT

Interfacing of 8085 with ADC MVI A,10 OUT C8 MVI A,18 OUT C8 MVI A,01 OUT D0 XRA A XRA A XRA A MVI A,00 OUT D0 loop IN D8 ANI 01 CPI 01 JNZ loop IN C0 STA 4150 HLT

Serial Communication Using 8251 TRANSMITTER MVI A,36 OUT C6 MVI A,0A OUT C8 MVI A,00 OUT C8 MVI A,4E OUT C2 MVI A,37 OUT C2 loop JZ C2 ANI 04 JZ loop MVI A,41 OUT C0 RST 1

RECEIVER MVI A,36 OUT C6 MVI A,0A OUT C8 MVI A,00 OUT C8 MVI A,4E OUT C2 MVI A,37 OUT C2 IN C2 ANI 02 IN C0 STA 4150 RST 1

STEPPER MOTOR Start Loop3 Loop2 Loop1

LXI H,4200 MVI B,04 MOV A,M OUT C0 MVI C,10 MVI D,FF DCR D JNZ loop1 DCR C JNZ loop2 INX H DCR B JNZ loop3 JMP start

Parallel communication between two kits TRANSMITTER MVI A,84 OUT C6 MVI A,data OUT C2 HLT RECEIVER MVI A,9B OUT C6 IN C2 STA 4150 HLT Sorting Of Numbers assume cs:code,ds:code code segment org 1000h mov si.1200h mov cl,[si] dec cl inc si loop: cmp al,[si] jc loop1 mov al,[si] loop:inc si dec cl jnz loop mov si,1500h mov [si],al hlt code ends end

Searching Of Numbers assume cs:code,ds:code code segment org 1000h mov si.1200h mov di,1500h mov cl,[si] inc si mov al,[si] inc si loop: cmp al,[si] jz loop1 inc si dec cl jnz loop loop1:mov bl,[si] mov [di],bl hlt code ends end

8 Bit Addition MVI C,03 LXI H,4150 MOV A,M INX H ADD M DCR C JNZ 4106 STA 4200 HLT 8 Bit Subtraction LDA 4201 MOV B,A LDA 4200 MVI C,00 SUB B JNC loop INR C CNR ADI 01 STA 4202 MOV A,C STA 4203 HLT 8 Bit Multiplication LDA 4200 MOV B,A LDA 4201 MOV C,A DEC B ADD C DEC B Loop JNC loop STA 4202 HLT 8 Bit Division LDA 4200 MOV B,A LDA 4201 MVI C,00 CMP B JC loop SUB B INR C JMP loop1 STA 4202 MOV A,C STA 4203 HLT 16 Bit Addition LHLD 4200 XCHG LHLD 4202 DAD D SHLD 4204 HLT 16 Bit Subtraction LHLD 4200 XCHG LHLD 4202 MOV A,E SUB L MOV L,A MOV A,D SUB H MOV H,A SHLD 4204 HLT 16 Bit Multiplication LHLD 4200 SPHL LHLD 4202 XCHG LXD H,0000 loop DAD SP DCX D MOV A,E ORA D JNZ loop SHLD 4204 HLT

Arrange in Ascending LDA 4200 MOV B,A DCR B loop3 LXI H,4200 MOV B,A DCR C INX H loop2 MOV A,M INX H CMP M JC loop1 MOV D,M MOV M,A DCX H MOV M,D INX H loop1 DCR C JNZ loop2 DCR B JNZ loop3 HLT Greatest And Smallest LXI H,4200 MOV A,M MVI C,05 loop1 INX H CMP M JNC loop2 MOV A,M loop2 DCR C JNZ loop1 STA 4250 HLT Digital Clock MVI A,80 OUT C6 MVI H,02 MVI L,00 start MVI D,3D XRA A next OUT C2 INR A DAA MVI E,02 loop3 MVI B,FF loop2 MVI C,FF loop1 DCR C JNZ loop1 DCR B JNZ loop2 DCR E JNZ loop3 DCR D JNZ next XRA A OUT C2 INR L MOV A,L OUT C4 DCR H JNZ start HLT