dbg_find_slot
if (dbg_find_slot(DBG_TYPE_BREAKPOINT, pc) != ~0U)
static u_int dbg_find_slot(enum dbg_t, db_expr_t);
i = dbg_find_slot(DBG_TYPE_WATCHPOINT, addr);
i = dbg_find_slot(monitor, DBG_TYPE_BREAKPOINT, addr);
i = dbg_find_slot(monitor, DBG_TYPE_WATCHPOINT, addr);