Generate and display binary up counter

Statement:
Write a program for displaying binary up counter. Counter should count numbers from 00 to FFH and it should increment after every 0.5 sec.Assume operating frequency of 8085 equal to 2MHz. Display routine is available.

Source program: LXI SP, 27FFH : Initialize stack pointer MVI C, OOH : Initialize counter BACK: CALL Display : Call display subroutine CALL Delay : Call delay subroutine INR C : Increment counter MOV A, C CPI OOH : Check counter is > FFH JNZ BACK : If not, repeat HLT : Stop Delay Routine: Delay: LXI B, count : Initialize count BACK: DCX D : Decrement count MOV A, E ORA D : Logically OR D and E JNZ BACK : If result is not 0 repeat RET : Return to main program

Flowchart for Program Flowchart for subroutine