how can i include assembly language instuction in c programming
"how we can access each bit of a register using keil"
You really need to spend some time familiarising yourself with the Keil C51 manual:
http://www.keil.com/support/man/docs/c51/
For this particular question, see: http://www.keil.com/support/man/docs/c51/c51_le_bitaddrobj.htm
s u r correct , am a beginner in this, thanks for ur reply