8051 microcontroller programming:Tutorial-Fibonacci series in assembly with Keil


Fibonacci series is also a good practice code:
The sequence is: 1,1,2,3,5,8.............
PROGRAM:

 ORG 00H
  MOV DPTR,#2000H
  MOVX A,@DPTR
  DEC A
  DJNZ A,LOOP2
  INC DPTR
  MOV A,#01H
  MOVX @DPTR,A
  INC DPTR
  MOV A,#01H
  MOVX @DPTR,A
  END 
LOOP2: MOV R1,A
  INC DPTR
  MOV A,#01H
  MOVX @DPTR,A
  INC DPTR
  MOV A,#01H
  MOVX @DPTR,A
LOOP1: DEC DPL
  MOVX A,@DPTR
  MOV R2,A
  INC DPTR
  MOVX A,@DPTR
  ADD A,R2
  INC DPTR
  MOVX @DPTR,A
  DJNZ R1,LOOP1
  END

Comments

  1. Chii1 April 2018 at 22:04

    Kk

    ReplyDelete
  2. Unknown3 November 2018 at 00:59

    мне нужно схема этого программа вы помойте мне?

    ReplyDelete
    Replies
    1. Unknown3 November 2018 at 01:02

      мне нужно схема этого программа вы поможте мне?

      Delete

Post a Comment

Popular posts from this blog

8051 microcontroller programming:Interfacing ADC 0808 and displaying using Seven segment displays with Keil

Image
Displaying the output from ADC is the most important aspect of interfacing an ADC with 8051. All the four ports are used. PORT0 :Lower nibble seven segment display. PORT1:ADC output. PORT2:   P2.0-ADD A   P2.1-ADD B   P2.2-ADD C   P2.4-ALE   P2.5-OE   P2.6-START   P2.7-EOC PORT3 :Higher nibble seven segment display. ORG 00H MOV 30H,#0C0H //COPY THE CODE FOR DISPLAING THE DIGITS TO THE SEVEN SEGMENT DISPLAY MOV 31H,#0F9H MOV 32H,#0A4H MOV 33H,#0B0H MOV 34H,#99H MOV 35H,#92H MOV 36H,#82H MOV 37H,#0F8H MOV 38H,#80H MOV 39H,#0B0H MOV 3AH,#088H MOV 3BH,#83H MOV 3CH,#0C6H MOV 3DH,#0A1H MOV 3EH,#86H MOV 3FH,#8EH ALE EQU P2.4 //ASSIGN PIN5 OF PORT2 FOR ALE (ADDRESS LATCH ENABLE) OF ADC START EQU P2.6 //ASSIGN PIN6 OF PORT2 FOR START OF ADC EOC EQU P2.7 //ASSIGN PIN7 OF PORT2 FOR EOC(END OF CONVERSION) OF ADC OE EQU P2.5 //ASSIGN PIN4 OF PORT2 FOR OE(OUTPUT ENABLE) OF ADC AA EQU P2.0 ...
Read more