/*
* Swap bytes in 16-bit [half-]words
* for going between the 11 and the interdata
*/
void
swab(pf, pt, n)
register short *pf, *pt;
register int n;
{
n /= 2;
while(--n >= 0) {
*pt++ = (*pf << 8) + ((*pf >> 8) & 0377);
pf++;
}