keyhit
static int keyhit(unsigned);
if (autoboot && !keyhit(3*SECOND)) {
if (!autoboot || keyhit(3*SECOND))
int keyhit(unsigned int secs);
if (autoboot && keyhit(3)) {
if (keyhit(0))
if (keyhit(3))
if (!auto_boot || keyhit(5))
if (autoboot && keyhit(3)) {
if (keyhit(0))