4_bitcode.asm

it is asn code written for 89c51.it is tested and it will work on any 8051 device.

;TESTED 4-BIT LCD CODE FOR 16X2 AND 16X4 DISPLAY (HD44780 COMPATABLE LCD) 
;CREATED BY ASIF ALI (DARE DEVIL) 
;FEEL FREE TO ASK IF ANY PROBLEM 
;EMAIL ID: [e-mail] 
;EMAIL ID: [e-mail] ;
;PIN CONFIGURATION 
;P1.7 --------> DB7 
;P1.6 --------> DB6 
;P1.5 --------> DB5
;P1.4 --------> DB4 
;P3.7 --------> EN 
;P3.5 --------> RS 
;P3.4 --------> RW 
;FOR 16X2 DISPLAY ITS READEY TO RUN CODE JUST MAKE HEX AND BURN IT ON MCU 
;=========================================================================
 ;NOTE: FOR 16X4 JUST REMOVE COMMENT SIGN ";" WHERE ITS WRITTEN ";(16X4)" 
 ;========================================================================= 
 ;AND AT END I WOULD LIKE TO THANK ALL OF MEMBERS OF 8052 WHO GAVE ME SUCH
  ;IMPORTANT KNOWLEDGE ABOUT LCD INTERFACING TO LCD PROGRAMMING. 
  ;SO GUYS JUST BURN THE PROGRAM ON MCU AND HAVE FUN IT WILL BE LOOK LIKE 
  ;========================================================================= 
  ; PREVIEW ; FOR 16X2 ;+----------------+ ;