flasher.asm

it is a simple flasher using 8051

; ------------- READS51 generated header -------------- 
; module  : D:\Data\Data\Project's\Flasher\Flasher\Flasher.asm
; created : 07:49:45, Wednesday, March 11, 2009
; ----------------------------------------------------- 
#include <sfr51.inc> 
    ORG     0
    SJMP    START
    ORG     30H

START:
    MOV     A,#AAH
FLASH:
    RR      A
    LCALL   DELAY
    MOV     P1,A
    SJMP    FLASH
DELAY:
        MOV     R2,#2
LOOP200:
        MOV     R3,#250
LOOP100:
        MOV     R4,#250
        DJNZ    R4,$
        DJNZ    R3,LOOP100
        DJNZ    R2,LOOP200 
        RET
CDE:
        MOV     R2,#30
LOOP25:
        MOV     R3,#250
LOOP15:
        MOV     R4,#250
        DJNZ    R4,$
        DJNZ    R3,LOOP15
        DJNZ    R2,LOOP25
        RET
        END