would you like to eat maggi which is over coocked…..
this site has given explanation how to establish the serial communication b/w micarocontroller and PC
link:
http://www.engineersgarage.com/microcontroller/8051projects/interface-serialport-RS232-AT89C51
why you want to wear old shoes on the first date when yesterday you bought a new pair….
assembly is too old go for C… still if you want assembly code complie the C code in keil it will give the assembly code for it