Objective: lighting one segment after the other.

$.$ Pre$-$Requisites:

Instructions of Microprocessor $8085$

Addressing modes of Microprocessor $8085.$

Flag register of Microprocessor $8085$

$,$CMD$8279$ EQU $09$H

$,$DAT$8279$ EQU $08H$

$,,$ORG $8000H$

$,,$MVI A$,C_{1H}$

$,$OUT CMD$8279$

$,$CALL DELAY

$,$MVI B$,01$H

INFLOOP:

$,$MVI A$,90H$

$,$OUT CMD$8279$

$,$MOV A$,$ B

$,$OUT DAT$8279$

$,$CALL ROTATE

$,$CALL DELAY

$,$JMP INFLOOP

DELAY:

$,$LXI $H,0FFFH$

DELOP$1$:

$,$DCX $H$

$,$MOV A$,$ H

$,$ORA L

$,$JNZ DELOP$1$

$,$RET

ROTATE:

$,$MOV A$,$ B

$,$RLC

$,$MOV B$,$ A

$,$RET

CMD$82790009$ DAT$82790008$ DELAY $8019$

DELOP$1801$C INFLOOP $8009$ ROTATE $8023$

Provide; algorithm, flowcharts, machine code, enter and run the program.

Sketch the timing diagram of the instruction OUT D$8$ as used in the above program

Each group students to write a Table of results and submit after the exercise