Bryand and O'Hallaron
                         Chapter 3 Section 3
                           Data Formats

C declaration     Intel data type    GAS suffix     Size (bytes)    

char              byte                   b                1
short             word                   w                2
int               double word            l                4
unsigned          double word            l                4
long int          double word            l                4
unsigned long     double word            l                4
char *            double word            l                4
float             single precision       s                4
double            double precision       l                8
long double       extended precision     t              10/12