I am using 8051F226. how can i display? wat i assembly code?
The 8051F226 is a 3.3V part.
What type of display are you using?
I know what Eric is trying to say, but you must be aware that some displays don't have a ready output and if they do, in some circumstances (depending upon your application requirements) you might not need to check it.
Try doing a search for some sample code for the specific display type - There is plenty around.
But, please check your details carefully.