Function fromlongbcd

src/blkdev.cpp:92–95

	return ((v / 10) << 4) | (v % 10);
}
int fromlongbcd (uae_u8 *p)
{
	return (frombcd (p[0]) << 16) | (frombcd (p[1]) << 8) | (frombcd (p[2])  << 0);
}
void tolongbcd (uae_u8 *p, int v)
{
	p[0] = tobcd ((v >> 16) & 0xff);