Embedded System Training -- Day 2

Embedded System -- Day 2

// Important Program for Volatile

int main()

{

volatile const int x = 10;

int *p = (int *)&x;

*p=20;

printf("%d",x); //if we do not write volatile we will see this as 10 .

printf("%d",*p);

}

Structure:

The Compiler maintains a Structure Defination Table[SDT] which has got offset

name,type,offet

a,char,0

x,double,1

y,char,9

with help of this table, at runtime memory is allocated for structures.

struct student p1;

p1.x = 10;

The address of p1 is resolved using Symbol table and Offset is taken from SDT.