AVR-Chat

hi every body

i want to develope a code for atmeg8515 .

i used to write in assemply using avr .

but this time the programme will be very big

and also complicated . i heard that C language

will be more easier than assemply , but i can't

find a site or a pdf to explain the C syntax for

atmega8515 ,also the atmel pdf doesn't contain all

available commands 



please if any one can help 


thank in advance

regards ,
mizo