I am newbie in controllers' programming. Recently, reading manual about ADSP controllers, I saw the key word ".section" in the c code. In another books I saw just "section" without dot. What do these directives mean? And is there any difference between these cases? My compiler works fine with "section," and the ".section" is undefined for it.

I have got answer. The key word ".section" is the assembly directives which is specified for the ADSP218x processors. The key word "section" is its c-analog if the code is written in c. These directives help to manage the memory located by program variables.