i am interested to know if , in keil c there is an option to insert a piece of assembly code into a c program as in sdcc where there are options like _asm ....codes and _endasm; k.vigneswaran
Sure there is!
Check out this link:
http://www.keil.com/support/man/docs/c51/c51_asm.htm
As I said before, anyone who needs that link pointing out to them is probably not sufficiently familiar to the tools and their documentation to be messing with this stuff...