S_BUSY
#define V_BUSY(x) ((x) << S_BUSY)
#define V_BUSY(x) ((x) << S_BUSY)
#define BUSMON_BSY S_BUSY
#define BUSMON_COMMAND ( S_BUSY | S_CD | S_REQUEST )
#define BUSMON_MESSAGE_IN ( S_BUSY | S_CD | S_IO | S_MESSAGE | S_REQUEST )
#define BUSMON_MESSAGE_OUT ( S_BUSY | S_CD | S_MESSAGE | S_REQUEST )
#define BUSMON_DATA_IN ( S_BUSY | S_IO | S_REQUEST )
#define BUSMON_DATA_OUT ( S_BUSY | S_REQUEST )
#define BUSMON_STATUS ( S_BUSY | S_CD | S_IO | S_REQUEST )
case S_BUSY:
s_status == S_BUSY ? "BUSY" : "QUEUE FULL\n");