BATC_V
proto = BATC_SO | BATC_V;
if ((batc & BATC_V) == 0)
batc = BATC_SO | BATC_INH | BATC_V;
if ((global_dbatc[batcno] & BATC_V) == 0)
if (global_dbatc[batcno - 1] & BATC_V)